HSNRQ50B - Air Conditioning Rinnai - Free user manual and instructions

Product Type	Split System Air Conditioner
Model	HSNRQ50B
Brand	Rinnai
Cooling Capacity	5.0 kW (17,000 BTU/h)
Heating Capacity	5.5 kW (18,800 BTU/h)
Power Supply	220-240 V / 50 Hz / 1 Phase
Power Consumption (Cooling)	1.6 kW
Power Consumption (Heating)	1.7 kW
Energy Efficiency Ratio (EER)	3.1
Refrigerant Type	R32
Indoor Unit Dimensions (WxHxD)	970 x 310 x 220 mm
Outdoor Unit Dimensions (WxHxD)	800 x 550 x 320 mm
Indoor Unit Weight	12 kg
Outdoor Unit Weight	35 kg
Airflow Rate (Max)	600 m³/h
Noise Level (Indoor)	25-45 dB(A)
Noise Level (Outdoor)	55 dB(A)
Main Functions	Cooling, Heating, Dehumidifying, Fan, Sleep Mode, Timer
Filter Type	Washable Antibacterial Filter
Maintenance & Cleaning	Clean filters every 2 weeks; annual professional service
Safety Features	Auto Restart, Overheat Protection, Child Lock
Spare Parts & Repairability	Available through Rinnai service centers; repair index 7.2/10
General Information	Remote control included; 5-year warranty on compressor

Frequently Asked Questions - HSNRQ50B Rinnai

How often should I clean the filters?

Clean the washable filters every two weeks for optimal performance. More frequent cleaning may be needed in dusty environments.

What refrigerant does the HSNRQ50B use?

It uses R32 refrigerant, which is environmentally friendly and efficient.

Can I install the air conditioner myself?

It is recommended to hire a qualified professional for installation to ensure proper electrical and refrigerant connections.

What is the warranty period?

Rinnai offers a 5-year warranty on the compressor and a 2-year warranty on parts.

Why is my unit not cooling properly?

Check if the filters are clean, the thermostat is set correctly, and there are no obstructions to airflow. If the problem persists, contact service.

How do I use the timer function?

Press the Timer button on the remote to set the desired on/off time. Refer to the manual for detailed steps.

What do the error codes mean?

Error codes are displayed on the indoor unit. Common codes include E1 (sensor fault) and E3 (refrigerant leak). Consult the manual for a full list.

Can the unit be used for heating in winter?

Yes, the HSNRQ50B is a reverse-cycle heat pump that provides efficient heating down to -10°C.

How do I clean the outdoor unit?

Gently rinse the outdoor coil with water and ensure no debris blocks the air intake. Do not use high-pressure washers.

Is the remote control included?

Yes, a remote control is included with the purchase along with batteries.

USER MANUAL HSNRQ50B Rinnai

Line drawing of a Rinnai air conditioner unit with control panel and display (no text or symbols on body)

Line drawing of a Rinnai air conditioner unit with fan blades and mounting base (no text or symbols on the fan itself)

Q Series Split Type Wall Mounted Air Conditioner

Service Manual

This appliance must be installed in accordance with:

• Manufacturer's Installation Instructions
• Current AS/NZS 3000, AS/NZS 5141
- Local Regulations and Municipal Building Codes including local OH&S requirements

This appliance must be installed, maintained and removed only by an Authorised Person.

For continued safety of this appliance it must be installed and maintained in accordance with the manufacturer's instructions.

REVISIONS

IssueDateDescription
1 Jan	2019 • First release.
2 Sep	2021 • Update & replace Section 9.1.

CONTENTS

Technical Information....1

1. Summary...... 1

1-1 Appearance....1
1-2 Model List....2

2. Outline Dimension Diagram....2

3. Specification sheet....5

4. Function and Control....10

Remote Control Layout 10

5. Refrigerant System Diagram....18

5-1 Cooling Only.... 18
5-2 Cooling & Heating....19

6. Electrical Part....21

6-1 Wiring Diagram....21

Installation and Maintenance.... 23

7. Installation Manual....23

8. Installation....23

8-1 Notes for Installation....23
8-2 Installation of Indoor...Unit 24
8-3 Installation of outdoor...Unit 27
8-4 Check after installation and test .operation....30

9. Maintenance....32

9-1 Troubleshooting Guide....32
9-2 Common Parameters....63
9-3 Troubleshooting for Normal Malfunction....65

10. Main Protection....73

10-1 Delay at restart of compressor.... 73
10-2 Temperature protection of compressor....73
10-3 Abnormal Fan Speed control....73
10-4 Indoor fan delayed open function....73
10-5 Indoor fan delayed open function....73
10-6 Preheating mode....73
10-7 Preheating release condition....74
10-8 High discharge temperature; compressor frequency control....74

11. Motor winding and Sensor Resistance Tables....75

11-1 Compressor Motor - Winding Resistance....75
11-2 IPM Continuity Check....75
11-3 Sensor Resistance - Temperature Charts....76

Appendix....77

AUX Common Sensor R-T Analysis Table....77

Technical Information

1. Summary

1- 1 Appearance

Indoor Unit

Front view of a silver air conditioner unit with a visible temperature reading of 26 degrees (no text or symbols on the device itself)

Outdoor Unit

Front view of a white air conditioner unit with a circular fan and grid grille (no visible text or symbols)

Note: The outdoor grille can be replaced.

1-2 Model List

System Model	Outdoor Model	Indoor Model
HSNRQ25B	HONRQ25B	HINRQ25B
HSNRQ35B	HONRQ35B	HINRQ35B
HSNRQ50B	HONRQ50B	HINRQ50B
HSNRQ70B	HONRQ70B	HINRQ70B
HSNRQ80B	HONRQ80B	HINRQ80B

2. Outline Dimension Diagram

WEIGHTS & DIMENSIONS

Model HSNRQ25B HSNRQ35B HSNRQ50B HSNRQ70BH$NRQ80B

Weight(kg)

Indoor 9

5 12.0

14.0

14.0

14.0

Outdoor 2

7.0

30.5

47.0

47.5

61.0

Dimensions(mm)

Indoor

A850

B198

C300

A970

B235

C315

A1100

B235

C330

A1100

B235

C330

A1100

B235

C330

Outdoor

D768

E28

F546

D837

E24

F545

D930

E20

F700

D930

E20

F700

D1010

E35

F803

G311

H540

I271

G353

H546

I316

G388

H632

I352

G388

H632

I352

G430

H675

I410

LOCATION

INDOOR UNIT

• Ensure the indoor unit is located away from heat or steam.
• Ensure the indoor unit is located so it can be accessed for service and replacement.
• Ensure the indoor unit is located so condensate can be drained away.
• Select a location where the indoor unit can be securely mounted.
• The clearances shown MUST BE maintained.

OUTDOOR UNIT

• Select the location where exposure to direct sunlight and strong wind are minimised.
• Select the location where the outdoor unit can be securely mounted.
• Select the location where the noise and air flow will not cause nuisance.
• Ensure there are no obstructions in the air flow path.
• Ensure the outdoor unit is located so it can be accessed for service and replacement.
• Do not place animals and plants near the air discharge.
• The clearances shown MUST BE maintained.

(All dimensions in mm)

PIPE LENGTH & ELEVATION LIMITS

Models	Pipe Size Gas Pipe Size Liquid				Chargeless Length	Minimum Length - X	Maximum Length - X	Maximum Height - Y	Additional Refrigerant
	mm inch	mm inch m m	m m g/m
HSNRQ25B	∅9.52 3/8 ∅6	35 1/4 5 2 20	12 15
HSNRQ35B	∅12.7 1/2 ∅6	35 1/4 5 2 20	12 15
HSNRQ50B	∅15.88 5/8 ∅6	35 1/4 5 2 30	20 15
HSNRQ70B	∅15.88 5/8 ∅6	35 1/4 5 2 30	20 15
HSNRQ80B	∅15.88 5/8 ∅6	35 1/4 5 2 30	20 30

The outdoor unit is charged for interconnecting pipe lengths of up to 5m. Additional refrigerant is to be added for lengths above 5m.

graph LR
    A["Indoor unit"] --> B["Outdoor unit"]
    B --> C["Y"]
    B --> D["X"]

4

graph LR
    A["Indoor unit"] -->|X| B["Outdoor unit"]
    B -->|Y| C["Ground"]

1. Specification sheet

Product Model					HSNRQ25B
Nameplate Parameter	Rated Capacity		Cooling		W	2500
			Heating		W	2500
	Rated Power Consumption		Cooling		W	525
			Heating		W	525
	Rated Running Current		Cooling		A	2.3 (0.9 ~ 6.0)
			Heating		A	2.3 (0.7 ~ 5.2)
	Max. Input Power				W	1340 /1340
	Max. Input Current				A	6.0 / 6.0
	EER Cooling				W/W	4.805
	COP Heating				W/W	4.905
	Power Supply Source				V/Ph/Hz	220-240V/1Phase/50Hz
	Refrigerant					R32
	Refrigerant Charged				g	800
	Max. Discharge Pressure				Mpa	4.3
	Max. Suction Pressure				Mpa	2.5
	Air Flow Volume (Turbo/Hi/Med/Lo/Min)				L/s 194 /1	76/147/115/105
	Indoor Unit Sound Pressure Level @ 1m				dB (A)	43
	Outdoor Unit Sound Pressure Level @ 1m				dB (A)	50
	Indoor Unit Weight (Net)				Kg	9.5
	Outdoor Unit Weight (Net)				Kg	27
Indoor Unit Configuration	Evaporator	Tube	Length		mm	652
			Diameter		mm	Φ7
	Fan System Fan Motor		Model		Pcs	D-310-13-8C
	Dimension	Net Dimension (W*D*H)			mm	850×300×198
		Packing Dimension (W*D*H)			mm	920×370×282
Connection	Stop Valve			Liquid Valve		Φ6.35
				Gas Valve		Φ9.52
Outdoor Unit Configuration	Compressor Model					GSD088RKQA6JV6B
	Compressor Parameter	Brand				HIGHLY
	Fan System Fan Motor		Model			D-24-8
	Condenser	Tube	Diameter		mm	Φ7
	Dimension	Net Dimension (W*D*H)			mm	768×545×311
		Packing Dimension (W*D*H)			mm	850×605×365
Product Model					HSNRQ35B
Nameplate Parameter	Rated Capacity		Cooling		W	3400
			Heating		W	3500
	Rated Power Consumption		Cooling		W	740
			Heating		W	740
	Rated Running Current		Cooling		A	3.3
			Heating		A	3.3
	Max. Input Power				W	1460
	Max. Input Current				A	6.5
	EER Cooling				W/W	4.841
	COP Heating				W/W	4.864
	Power Supply Source				V/Ph/Hz	220-240V/1Phase/50H z
	Refrigerant					R32
	Refrigerant Charged				g	1000
	Max. Discharge Pressure				Mpa	4.3
	Max. Suction Pressure				Mpa	2.5
	Air Flow Volume (Turbo/Hi/Mcd/Lo/Min)				L/s	305 /255/197/152/138
	Indoor Unit Sound Pressure Level @ 1m				dB (A)	50
	Outdoor Unit Sound Pressure Level @ 1m				dB (A)	53
	Indoor Unit Weight (Net)				Kg	12
	Outdoor Unit Weight (Net)				Kg	30.5
Indoor Unit Configuration	Evaporator	Tube	Length		mm	722
			Diameter		mm	Φ 7
	Fan System Fan Motor		Model		Pcs	D-310-30-8
	Dimension	Net Dimension (W*D*H)			mm	970×315×235
		Packing Dimension (W*D*H)			mm	1045×385×320
Connection	Stop Valve			Liquid Valve		Φ6.35
				Gas Valve		Φ12.7
Outdoor Unit Configuration	Compressor Model					GSD088RKQA6JV6B
	Compressor Parameter	Brand				HIGHLY
	Fan System Fan Motor		Model			D-40-8
	Condenser	Tube	Diameter		mm	Φ 7
	Dimension	Net Dimension (W*D*H)			mm	837×545×353
		Packing Dimension (W*D*H)			mm	920×605×395
Product Model					HSNRQ50B
Nameplate Parameter	Rated Capacity		Cooling		W	5200
			Heating		W	5200
	Rated Power Consumption		Cooling		W	1200
			Heating		W	1210
	Rated Running Current		Cooling		A	5.2
			Heating		A	5.3
	Max. Input Power				W	2000
	Max. Input Current				A	9
	EER Cooling				W/W	4.432
	COP Heating				W/W	4.422
	Power Supply Source				V/Ph/Hz	220-240V/1Phase/50Hz
	Refrigerant					R32
	Refrigerant Charged				g	1350
	Max. Discharge Pressure				Mpa	4.3
	Max. Suction Pressure				Mpa	2.5
	Air Flow Volume (Turbo/Hi/Mcd/Lo/Min) L/s					333/291/243/186/156
	Indoor Unit Sound Pressure Level @ 1m				dB (A)	50
	Outdoor Unit Sound Pressure Level @ 1m				dB (A)	54
	Indoor Unit Weight (Net)				Kg	14
	Outdoor Unit Weight (Net)				Kg	47
Indoor Unit Configuration	Evaporator	Tube	Length		mm	850
			Diameter		mm	Φ7
	Fan System	Fan Motor	Model		Pcs	D-310-50-8A
	Dimension	Net Dimension (W*D*H)			mm	1100×330×235
		Packing Dimension (W*D*H)			mm	1180×400×320
Connection	Stop Valve			Liquid Valve		Φ6.35
				Gas Valve		Φ15.88
Outdoor Unit Configuration	Compressor Model					KSM135D23UFZ
	Compressor Parameter	Brand				GMCC
	Fan System Fan	Motor	Model			D-69-8
	Condenser	Tube	Diameter		mm	Φ7
	Dimension	Net Dimension (W*D*H)			mm	930×700×388
		Packing Dimension (W*D*H)			mm	1020×755×430
Product Model					HSNRQ70B
Nameplate Parameter	Rated Capacity		Cooling		W	7030
			Heating		W	7030
	Rated Power Consumption		Cooling		W	1865
			Heating		W	1850
	Rated Running Current		Cooling		A	8.1
			Heating		A	8.0
	Max. Input Power				W	2500
	Max. Input Current				A	11.5
	EER Cooling				W/W	3.801
	COP Heating				W/W	3.868
	Power Supply Source				V/Ph/Hz	220-240V/1Phase/50Hz
	Refrigerant					R32
	Refrigerant Charged				g	1350
	Max. Discharge Pressure				Mpa	4.3
	Max. Suction Pressure				Mpa	2.5
	Air Flow Volume (Turbo/Hi/Mcd/Lo/Min)				L/s	361/327/258/198/169
	Indoor Unit Sound Pressure Level @ 1m				dB (A)	50
	Outdoor Unit Sound Pressure Level @ 1m				dB (A)	55
	Indoor Unit Weight (Net)				Kg	14
	Outdoor Unit Weight (Net)					47.5
Indoor Unit Configuration	Evaporator	Tube	Length		mm	850
			Diameter		mm	Φ7
	Fan System Fan Motor		Model		Pcs	D-310-50-8A
	Dimension	Net Dimension (W*D*H)			mm	1100×330×235
		Packing Dimension (W*D*H)			mm	1180×400×320
Connection	Stop Valve			Liquid Valve		Φ6.35
				Gas Valve		Φ15.88
Outdoor Unit Configuration	Compressor Model					GTD186UKQA9LT6
	Compressor Parameter	Brand				HIGHLY
	Fan System Fan Motor		Model			D-69-8
	Condenser	Tube	Diameter		mm	Φ7
	Dimension	Net Dimension (W*D*H)			mm	930×700×388
		Packing Dimension (W*D*H)			mm	1020×755×430
Product Model					HSNRQ80B
Nameplate Parameter	Rated Capacity		Cooling		W	8000
			Heating		W	8400
	Rated Power Consumption		Cooling		W	2400
			Heating		W	2550
	Rated Running Current		Cooling		A	11
			Heating		A	11
	Max. Input Power				W	3000
	Max. Input Current				A	18
	EER Cooling				W/W	3.31
	COP Heating				W/W	3.27
	Power Supply Source				V/Ph/Hz	220-240V/1Phase/50Hz
	Refrigerant					R32
	Refrigerant Charged				g	1600
	Max. Discharge Pressure				Mpa	4.3
	Max. Suction Pressure				Mpa	2.5
	Air Flow Volume (Turbo/Hi/Mcd/Lo/Min)				L/s	372/323/276/230/180
	Indoor Unit Sound Pressure Level @ 1m				dB (A)	50
	Outdoor Unit Sound Pressure Level @ 1m				dB (A)	59
	Indoor Unit Weight (Net)				Kg	14
	Outdoor Unit Weight (Net)					61
Indoor Unit Configuration	Evaporator	Tube	Length		mm	983
			Diameter		mm	Φ7
	Fan System Fan Motor		Model		Pcs	D-310-50-8A
	Dimension	Net Dimension (W*D*H)			mm	1100×330×235
		Packing Dimension (W*D*H)			mm	1180×400×320
Connection	Stop Valve			Liquid Valve		Φ6.35
				Gas Valve		Φ15.88
Outdoor Unit Configuration	Compressor Model					KTM240D57UKP
	Compressor Parameter	Brand				GMCC
	Fan System Fan Motor		Model			D-310-120-8A
	Condenser	Tube	Diameter		mm	Φ7
	Dimension	Net Dimension (W*D*H)			mm	1010×803×430
		Packing Dimension (W*D*H)			mm	1105×890×495

4. FUNCTION AND CONTROL

REMOTE CONTROL LAYOUT

The external buttons are for basic operations, the buttons located behind the door are for advanced operations.

1. ON / OFF button

Turns the power on/off.

1. FAN speed button

Adjusts the fan speed: AUTO / LOW / MEDIUM / HIGH.

1. Temperature adjustment buttons

Adjusts room temperature when cooling and heating.

1. COOL

One touch cooling operation.

1. HEAT

One touch heating operation.

1. SWING button (vertical)

Adjusts the air flow direction vertically.

1. SWING ↔ button (horizontal)

Adjusts the air flow direction horizontally.

1. Operation MODE selection button

Selects the operation mode: AUTO / COOLING / DRY (dehumidifying) / HEATING / FAN (fan only).

1. TURBO cooling / heating button

Warms or cools rooms at the fastest rate.

1. HEALTH button

Used to access Wi-Fi operation.

1. QUIET button

Sets appliance operation to lowest noise output level.

1. SLEEP button

Sets the sleep mode auto operation.

1. TIMER button

Sets the count down timer to turn the power ON / OFF.

1. ROOM°C Temperature display button

Displays the temperatures: ROOM / SET.

1. DISPLAY button

Turns indoor temperature display ON / OFF.

1. FRESH button

Keeps the head unit free of excess moisture by running a 3 min cycle every time the unit is turned off.

1. CLEAN button

End of season cleaning process to dry the inside of the indoor unit or when the appliance is not going to be used for an extended period of time.

1. SPOT SWING button

Sets a fixed direction for air flow horizontally.

1. ECO button

Sets appliance to the most efficient operation.

1. Wireless Transmitter LED

2. LCD screen

Displays settings and operation modes.

1. Blank buttons

Not used.

The external buttons are for basic operations, the buttons located behind the door are for advanced operations.

ON

When the appliance is off (standby):

1. Press the "ON/OFF" button to turn on appliance. The appliance will begin to operate.

All current operational settings, modes and the battery status are shown on the LCD screen.

When the appliance is turned on via the "ON/OFF" button it will return to operation using the last operational settings and modes that were set.

OFF

When the appliance is running:

1. Press the "ON/OFF" button to turn off appliance. The appliance will be placed into standby.

The previous operation mode and the remote control battery status are shown on the LCD screen.

When the appliance is turned off via the "ON/OFF" button it will retain the last operational settings and modes that were in use and be placed into standby.

COOLING

When selected this mode operates the air conditioner as a cooling appliance.

1. Press the "COOL" button.

2. Press ▲ or ▼ to set the desired temperature (the available temperature range is 16°C \~ 32°C in 0.5°C increments).

The fan speed defaults to that which was last used (see FAN SPEED below).

HEATING

When selected this mode operates the air conditioner as a heating appliance.

1. Press the "Heat" button.

2. Press ▲or ▼To set the desired temperature (the available temperature range is 16°C \~ 32°C in 0.5°C increments)).

The fan speed defaults to that which was last used (see FAN SPEED below).

FAN SPEED

The fan speed can be adjusted manually or set to automatic.

1. Press the "FAN" button until the desired fan speed is shown on the LCD screen (displayed below the temperature display), the available fan speeds are AUTO / low (2 bars) / medium (4 bars) / high (6 bars).

Select "AUTO" if you wish the fan speed to be adjusted automatically by the appliance.

ADJUSTING VERTICAL AIR FLOW

Continuous Circulation

1. To adjust the direction of the air flow vertically for an even air circulation, press the "SWING " button, this activates a continuous cyclic movement of the louvre. When cycling, "SWING " and the swing icon are shown on the LCD screen.

Fixed Direction

1. To adjust the direction of the air flow vertically in a fixed direction, press the "SWING ↑" button once to activate a continuous cyclic movement of the louvre."SWING↑" and the swing icon are shown on the LCD screen.
2. When the desired flow direction has been reached press the "SWING ↑" button again to stop the movement of the louvre. "SWING↑" and the swing icon are no longer shown on the LCD screen.
3. Repeat the above steps to further adjust the flow direction or press the "SWING ↑" button once to return to a continuous cyclic movement of the louvre. When cycling, "SWING↑" and the swing icon are shown on the LCD screen.

DO NOT attempt to adjust the air deflector louvre manually as this can result in damage to the louvre movement mechanisms.

ADJUSTING HORIZONTAL AIR FLOW

Continuous Circulation

1. To adjust the direction of the air flow horizontally for an even air circulation, press the "SWING" button to enable a continuous cyclic movement of the vanes. When cycling, "L R SWING" and the swing icon are shown on the LCD screen.

Fixed Direction

1. To adjust the direction of the air flow horizontally in a fixed direction, press the "SWING↔" button once to enable a continuous cyclic movement of the vanes. "L R SWING" and the swing icon are shown on the LCD screen.
2. When the desired flow direction has been reached press the "SWING " button again to stop the movement of the vanes. "SWING " and the swing icon are no longer shown on the LCD screen.
3. Repeat the above steps to further adjust the flow direction or press the "SWING " button once to a return to a continuous cyclic movement of the vanes. When cycling, "SWING " and the swing icon are shown on the LCD screen.

DO NOT attempt to adjust the air deflector vanes manually as this can result in damage to the louvre movement mechanisms.

The external buttons are for basic operations, the buttons located behind the door are for advanced operations, when the door is opened the basic operation buttons are de-activated until the door is again closed.

ON/OFF BUTTON (Functions the same as the "ON/OFF" button in basic operation on page 81).

FAN BUTTON (Functions the same as the "FAN" button in basic operation on page 81).

MODE - AUTO

In this mode, fan speed, temperature and operational mode (cooling, dry and heating) are all adjusted automatically by the appliance, based on the current room temperature.

1. Press the "ON/OFF" button to turn on appliance.
2. Press the "MODE" button until "AUTO" is shown on the LCD screen.
3. To cancel the "AUTO" mode an return the appliance to manual control select another mode.

AUTO	RUN
	AUTO
	SPEED

The table below describes the relationship between room temperature and modes of operation when set to Auto.

Room Temperature Set Temperature Operation Mode
≥ 27^ 24^ Cooling Mode
20^ 27^ 24^	Dry Mode
≤ 20^ 24^	Heating Mode

In this mode, you cannot adjust the temperature, however the swing operations for air direction and the fan speeds can still be adjusted.

MODE - COOL (Functions the same as the "COOL" button in basic operation on page 81).

MODE - DRY (DEHUMIDIFYING)

In periods of high humidity this mode removes excess moisture from the room, in order to prevent mould and mildew. This mode adjusts the room temperature and the fan speed automatically to maintain the optimal level of humidity.

1. Press the "ON/OFF" button to turn on appliance.
2. Press the "MODE" button until "DRY" is shown on the LCD screen.

In this mode changes to the room temperature or fan speed are not applied as the appliance will automatically adjust both room temperature or fan speed to maintain the optimal level of humidity.

MODE - HEAT (Functions the same as the "HEAT" button in basic operation on page 81).

MODE - FAN ONLY

This mode uses the fan to circulate room air without changing the room temperature.

1. Press the "ON/OFF" button to turn on appliance.
2. Press the "MODE" button until "FAN" is shown on the LCD screen.
3. Press the "SPEED" button until the desired speed is shown on the LCD screen (the available fan speeds are low (2 bars) / medium (4 bars) / high (6 bars).

In this mode, Swing operations for air direction can still be adjusted, however the AUTO setting for the fan speed is not available.

TURBO

This mode allows you to cool indoor air quickly in summer or warm it quickly in winter.

1. Press the "ON/OFF" button to turn on appliance.
2. Confirm that either "COOL" or "HEAT" modes are selected as shown on the LCD screen.
3. Press the "TURBO" button, "TURBO" is shown on the LCD screen and an addition fan speed bar is also displayed.

When the appliance is operating in AUTO, FAN or DRY modes the Turbo function is not available. In turbo mode the fan is set to operate at the maximum output. Attempting to alter the fan speed during TURBO mode operation will cancel this mode and return the appliance to manual operation.

QUIET

This mode operates the appliance at its quietest, ideal for when minimal indoor noise levels are desired.

1. Press the "ON/OFF" button to turn on appliance.
2. Confirm that either "COOL" or "HEAT" modes are selected as shown on the LCD screen.
3. Press the "QUIET" button, "SILE" is shown on the LCD screen and a single fan speed bar is also displayed.

Attempting to alter the fan speed during Quiet mode operation will cancel this mode and return the appliance to manual operation.

HEALTH (WI-FI)

When pressed 8 times in quick succession, this button activates and or resets the Wi-Fi module of the appliance.

The appliance will respond with a double beep to confirm Wi-Fi activation or reset.

For further details refer to the Wi-Fi Operation Manual, a copy of the manual may be downloaded from the Rinnai web site: http://www.rinnai.com.au/cooling/

SLEEP MODE

1. Press the "ON/OFF" button to turn on appliance.
2. Set the desired mode, temperature and fan setting as per basic operations.
3. Press the "SLEEP" button, "SLEEP" is shown on the LCD screen:

For Cooling: Allows the set temperature to increase and decrease over a 10 hour period at pre-set time intervals to maintain your comfort while saving energy (see graph right).

For Heating: Allows the set temperature to decrease and increase over a 10 hour period at pre-set time intervals to maintain your comfort while saving energy (see graph right).

Sleep mode is not available in FAN only mode.

The Delay Off Timer (see page 15) can be used in conjunction with SLEEP mode to turn off the air conditioner automatically.

1. Pressing the "SLEEP" button again will cancel sleep mode, "SLEEP" will no longer be shown on the LCD screen.

DELAY ON TIMER

1. With the appliance "OFF", press the "TIMER" button once, up to three digits and a blinking "ON" are shown at the bottom of the LCD screen.
2. Press _or No set the desired time period (the available time range is in 1/2 hour increments from 24 to 0.5 hours).
3. Press the "TIMER" button again to lock in the setting, both "TIMER" and a "ON" are shown on the LCD screen. The timer will count down the time remaining in half hour in increments. When the countdown is complete the appliance will turn on.

When setting a timer function, at each step failure to press buttons within 10 seconds will terminate the timer setup. If this happens you will need to re-start the timer setup procedure at step 1.

1. Set the mode, temperature and fan setting you wish the appliance to operate with when the "ON" time period is reached.

DELAY OFF TIMER

1. With the appliance "ON", press the "TIMER" button once, both "TIMER" and a blinking "OFF" are shown on the LCD screen.
2. Press or o set the desired time period (the available time range is in 1/2 hour increments from 24 to 0.5 hours).
3. Press the "TIMER" button again to lock in the setting, both "TIMER" and a "ON" are shown on the LCD screen. The timer will count down the time remaining in half hour in increments. When the countdown is complete the appliance will turn off.

When setting a timer function, at each step failure to press buttons within 10 seconds will terminate the timer setup. If this happens you will need to re-start the timer setup procedure at step 1.

1. Set the mode, temperature and fan setting you wish the appliance to operate with until the "OFF" time period is reached.

1. When a timer is set, pressing the "TIMER" button will cancel any timer settings and the timer "OFF" or "ON" indicator will no longer be shown on the LCD screen.

ROOM TEMPERATURE DISPLAY

The remote control is capable of displaying either the set temperature or the current ambient room temperature.

1. To display the current room temperature, press the "ROOM °C" button once. "ROOM" is shown on the LCD screen and the temperature digits display the current room temperature.
2. To display the current set temperature, press the "ROOM °C" button again. "SET" is shown on the LCD screen and the temperature digits display the current set temperature.

The "SET" temperature display is the default display for the remote control and will be reset when the controller is turned off and on.

When the room temperature mode is selected any changes to the set temperature will flash on the display for 5 seconds, after which the display will revert to displaying the current room temperature.

LARGE TEMPERATURE DISPLAY

The set and current room temperatures can be displayed via a large digital display that is built into appliance and illuminates through the front cover of the indoor unit.

To turn the display on

1. Press the "ON/OFF" button to turn on appliance.
2. Press the "DISPLAY" button, to activate the large digital temperature display.
3. Press the "DISPLAY" button again, to deactivate the large digital temperature display.

Pure diagram of a device casing with no text, numbers, or symbols visible

The large temperature display will display the same temperature setting as that currently in use by remote control.

When the room temperature mode is selected any changes to the set temperature will flash on the display for 5 seconds, after which the display will revert to displaying the current room temperature.

AUTO FRESH

Cooling and dehumidifying operations, can generate moisture inside the appliance. Using the "FRESH" function removes such moisture by allowing the fan to run for 3 minutes after every shut-down, avoiding odours and keeping the unit fresh.

1. With the appliance "OFF" press the "FRESH" button, "Anti-F" is shown on the LCD screen.
2. Pressing the "FRESH" button again will cancel the mode, "FRESH" will no longer be shown on the LCD screen.

COOL
let-f

This function will not operate in TIMER OFF or SLEEP modes.

SPOT SWING

1. Press the "SWING " button.
2. There are 5 pre-set fixed air flow directions available, pressing the "SPOT SWING" button will allow you to cycle through each of these fixed directions.
3. To select a different fixed direction or to return to continuous circulation press the "SPOT SWING" button until the desired fixed direction is achieved or until the swing icon is again displayed.

DO NOT attempt to adjust the air deflector louvre manually as this can result in damage to the louvre movement mechanisms.

graph TD
    A["SAING 1"] --> B["SAING 1"]
    B --> C["SAING 1"]
    C --> D["SAING 1"]
    D --> E["SAING 1"]
    E --> F["SAING 1"]
    F --> G["SAING 1"]
    G --> H["SAING 1"]
    H --> I["SAING 1"]
    I --> J["SAING 1"]
    J --> K["SAING 1"]
    K --> L["SAING 1"]
    L --> M["SAING 1"]
    M --> N["SAING 1"]
    N --> O["SAING 1"]
    O --> P["SAING 1"]
    P --> Q["SAING 1"]
    Q --> R["SAING 1"]
    R --> S["SAING 1"]
    S --> T["SAING 1"]
    T --> U["SAING 1"]
    U --> V["SAING 1"]
    V --> W["SAING 1"]
    W --> X["SAING 1"]
    X --> Y["SAING 1"]
    Y --> Z["SAING 1"]

ECONOMY (COOLING ONLY)

In this mode the appliance automatically sets the operation to achieve the most economical cooling of the room.

1. Press the "ON/OFF" button to turn on appliance and select a cooling mode.
2. Press the "ECO" button, the appliance will run in ECO mode.
3. Pressing the "ECO" button again will cancel the mode, "ECO" will no longer be shown on the LCD screen.

ECO mode operation runs for an 8 hour period, after which normal cooling operations will be resumed, to restart ECO mode after this period repeat step 2 above.

Be aware that ECO mode cooling times may be longer than those for non ECO mode cooling.

CLEANING OPERATION

Cooling and dehumidifying operations, can generate moisture inside the appliance. If the appliance is not going to be used for a long period (in excess of one month), it is suggested to run the cleaning operation to remove dust and moisture to help avoid odours.

1. With the appliance "OFF" press the "CLEAN" button, "iClean" is shown on the LCD screen.
2. Pressing the "CLEAN" button again will cancel the mode, "iClean" will no longer be shown on the LCD screen.

COOL
iLEW

This cleaning operation takes approximately 35mins and the appliance automatically shuts off at completion of the cleaning cycle.

OPERATING THE AIR CONDITIONER WITHOUT THE REMOTE CONTROL

You can use the Manual ON/OFF (Auto) button of the indoor unit to operate the air conditioner when the remote control is unavailable.

When operated in this manner the appliance is set to AUTO OPERATION mode (as described in "Mode - Auto" on page 13, cooling, heating and fan speed are all adjusted automatically by the appliance.

1. Open the front cover by locating the finger recesses located at each side and then lightly pull up both sides of the cover simultaneously to unlatch. Continue to rotate the cover upwards until it locks into the open position.
2. Press the Manual ON/OFF (Auto) button (located on the right side of the appliance).
3. Return the cover to the closed position.
4. To turn off, repeat steps 1 through 3.

POWER INTERRUPTION AUTOMATIC RESTART

Should a power outage occur while the appliance is operating, when the power is restored the system will restart automatically using the same settings as those that were set before the power outage.

After power restoration, the automatic restart cycle will take approximately 5 minutes. DO NOT adjust setting during the restart cycle period.

5. Refrigerant System Diagram

5-1 Cooling Only

▶ Cooling Mode

graph TD
    A["Indoor Unit"] --> B["T1"]
    B --> C["Liquid side"]
    C --> D["Capillary tube"]
    D --> E["Outdoor Unit"]
    F["Heat Exchanger (Evaporator)"] --> G["T2"]
    G --> H["Cross fan"]
    H --> I["Gas side"]
    I --> J["Compressor"]
    J --> K["Capillary tube"]
    K --> L["Condenser"]
    M["Propeller fan"] --> N["Compressor"]
    style A fill:#f9f,stroke:#333
    style F fill:#ccf,stroke:#333
    style M fill:#cfc,stroke:#333
    style N fill:#fcc,stroke:#333

Cooling Cycle

graph TD
    A["Indoor heat exchanger (Evaporation)"] -->|Steam-gas of low pressure| B["Compressor (Compression)"]
    B -->|Gas of high pressure temperature| C["Outdoor heat exchanger (Condensation)"]
    C -->|Super cooled liquid of high pressure| D["Capillary (Throttling)"]
    D -->|Liquid of low pressure (also a little gas)| A

5-2 Cooling & Heating

➢ Cooling Mode

graph TD
    subgraph_Indoor_Unit["Indoor Unit"]
        T1["T1"] --> L["Liquid side"]
        L --> 2-way_valve["2-ray valve"]
        2-way_valve --> Capillary_tube["Capillary tube"]
        Capillary_tube --> Check_value["Check value"]
        Check_value --> Capillary_tube
        Capillary_tube --> Propeller_fan["Propeller fan"]
    end

    subgraph_Outdoor_Unit["Outdoor Unit"]
        T2["T2"] --> Gas["S gas side"]
        Gas["S gas side"] --> 2-way_valve["2-ray valve"]
        2-way_valve --> 4-way_valve["4-ray valve"]
        4-way_valve --> Compressor["Condenser"]
        Compressor --> 2-way_valve
        Compressor --> Gas_Sink["Gas Leak Check Point"]
        Gas_Sink --> Cross_fan["Cross fan"]
        Cross_fan --> Heat_Exchanger_Evaporator["Heat Exchanger (Evaporator)"]
    end

    L --> 2-way_valve
    L --> 2-way_valve
    L --> 2-way_valve
    L --> 2-way_valve
    L --> 2-way_valve
    L --> 2-way_valve
    L --> 2-way_valve
    L --> 2-way_valve
    L --> 2-way_valve
    L --> 2-way_valve
    L --> 2-way_valve
    L --> 2-way_valve

Cooling Cycle

graph TD
    A["Indoor heat exchanger (Evaporation)"] -->|Steam-gas of low pressure| B["Compressor (Compression)"]
    B --> C["4-way valve (Heat pump only)"]
    C --> D["Outdoor heat exchanger (Condensation)"]
    D -->|Gas of high press & temperature| C
    D -->|Super cooled liquid of high pressure| E["Capillary (Throttling)"]
    E -->|Liquid of low pressure (also a little gas)| A

▶ Heating Mode

graph TD
    subgraph_Indoor_Unit["Indoor Unit"]
        A["Heat Exchanger (Evaporator)"] --> B["T1"]
        B --> C["Liquid side"]
        C --> D["2-way valve"]
        D --> E["Capillary tube"]
        E --> F["Ditch valve"]
        F --> G["Capillary tube"]
        G --> H["Heat Exchanger (Condenser)"]
    end

    subgraph_Outdoor_Unit["Outdoor Unit"]
        I["T2"] --> J["Gas side"]
        J --> K["3-way valve"]
        K --> L["4-way valve"]
        L --> M["Compressor"]
        M --> N["Heating"]
        M --> O["Gas Leak"]
    end

    A --> P["T1"]
    P --> Q["Liquid side"]
    Q --> R["2-way valve"]
    R --> S["Capillary tube"]
    S --> T["Ditch valve"]
    T --> U["Capillary tube"]
    U --> V["Heat Exchanger (Condenser)"]
    V --> W["4-way valve"]
    W --> X["Compressor"]
    X --> Y["Heating"]
    X --> Z["Gas Leak"]

▶ Heating Cycle

graph TD
    A["Indoor heat exchanger (Evaporation)"] -->|Gas of high press & temperature| B["Compressor (Compression)"]
    B --> C["4-way valve (Heat pump only)"]
    C --> D["Outdoor heat exchanger (Condensation)"]
    D -->|Super cooled liquid of high pressure| E["Capillary (Throttling)"]
    E -->|Super cooled liquid of low pressure| A
    C -->|Steam-gas of low pressure| D

6. Electrical Part

The diagrams listed below for reference only, please refer to the actual product.

6-1 Wiring Diagram

➢ Indoor Unit (Except HINRQ80B)

Indoor Unit (HINRQ80B ONLY)

➢ Outdoor Unit (Except HONRQ80B)

➢ Outdoor Unit (HONRQ80B ONLY)

7. Installation Manual

Please refer to the latest version of the Installation Manual which is available on the Rinnai website www.rinnai.com.au.

8. Installation

8-1 Important Notices for Installation

• This appliance must be installed in accordance with Manufacturer's Installation Instructions. Current Standards AS/NZS 3000, AS/NZS 5141.
  ● This appliance must be installed, maintained and removed by an Authorised person.

Requirements For Installation Position

● Avoid places of inflammable or explosive gas leakage or where there are strongly aggressive gases.
● Avoid places subject to strong artificial electric/magnetic fields.
● Avoid places subject to noise and resonance.
- Avoid severe natural conditions (e.g. heavy lampblack, strong sandy wind, direct sunshine or high temperature heat sources).
● Avoid places within the reach of children.
● Shorten the connection between the indoor and outdoor units.
- Select where it is easy to perform service and repair and where the ventilation good.
● The outdoor unit shall not be installed in any way that could occupy an aisle, stairway, exit, fire escape, catwalk or any other public area.
- The outdoor unit shall be installed as far as possible from the doors and windows of the neighbors as well as the green plants.

Requirements for operations at raised height

- When carrying out installation at 2m or higher above the base level, safety belts must be worn and ropes of sufficient strength be securely fasten to the outdoor unit, to prevent falling that could cause personal injury or death as well as property loss.

Requirements of the mounting structure

● The mounting rack must meet the relevant national or industrial standards in terms of strength with welding and connection areas rustproofed.
● The mounting rack and its load carry surface shall be able to withstand 4 times or above the weight of the unit, or 200kg, whichever is heavier.
● The mounting rack of the outdoor unit shall be fastened with expansion bolt.
- Ensure the secure installation regardless of what type of wall on which it is installed, to prevent potential dropping that could hurt people.

Electrical Safety Requirements (Current Standard AS/NZS 3000)

• Be sure to use the rated voltage and air conditioners dedicated circuit for the power supply, and the power cord diameter must meet the AU standard.
  ● Be sure to use the rated voltage and air conditioners dedicated
• When the maximum current of air conditioner is ≥ 16A , it must use the air switch or leakage protection switch equipped with protection devices.
  ● The normal operating range is 90%-110% of the local rated voltage.

● The minimum clearance between the air conditioner and the combustibles is 1.5 m.
● The power cable enables communication between the indoor and outdoor units. You must first choose the right cable size before preparing it for connection.

Grounding Requirements

● The air conditioner is the type I electrical appliance and must ensure a reliable grounding.

- Do not connect the grounding wire to a gas pipe, water pipe, lightning rod, telephone line, or a circuit poorly grounded to the earth.

● The grounding wire is specially designed and shall not be used for other purpose, nor shall it be fastened with a common tapping screw.

Others

- The connection method of the air conditioner and the power cord and the interconnection method of each independent element shall be subject to the wiring diagram affixed to the machine.

● The model and rating value of the fuse shall be subject to the silkscreen on corresponding controller or fuse sleeve.

8-2 Installation of Indoor Unit

➢ Installation Parts-checking

Packing list of the indoor unit

NO.	Name	Quantity	Unit
1	Indoor Unit	1	Set
2	Remote Controller	1	PC
3	Batteries(AAA)	2	PC
4	Instructions	1	Set
5	Drain pipe	1	PC

NOTE:

※ All accessories shall be subject to actual packaging material, and if there is any difference, please understand.

Selection of Installation location

Mounting plate

1. The wall for installation of the indoor unit shall be hard and firm, to prevent any vibration.
2. Use the Phillips screws to fasten the mounting bracket. Horizontally affix the
   mounting board on the wall and ensure it is level both horizontally and vertically.
3. Pull the mounting bracket by hand after the installation, to confirm whether it is solid.

Technical line drawing of a mechanical assembly with mounting brackets and fasteners (no text or symbols)

▶ Wall-through Hole

1. Drill a hole 60mm wall penetration through the wall with a 2^ to 4^ fall to the outside wall.
2. To protect the piping and the cables from being damaged running through the wall, and from the rodents that may inhabit in the hollow wall, a pipe protecting ring shall be installed and sealed with putty.

Note: Usually, the wall hole is 60 80mm . Avoid pre-buried power wir and hard wall when making the ho

Route of Pipeline

1. Depending on the position of the unit, the piping may be routed sideways from the left or the right (Fig 1), or vertically from the back (Fig 2) (depending on the pipe length of the indoor unit). In the case of sideways routing, cut off the outlet cutting stock of the opposite side.
2. The power cord may be routed separately from the piping. Cut off the outlet cutting stock and then run the power cord through the hole, keeping the remaining part as a protection from rodents.

➢ Drain pipe connection

1. Remove the mountings and pull the indoor unit pipe out of the housing.
2. Connect the connecting pipe to the indoor unit: Aim at the pipe center, tighten the Taper nut with fingers, and then tighten nut with a torque wrench, and the direction is shown in diagram on the right. The torque used is shown in the following table.

Tightening torque table

The size of pipe(mm)	Torque(N·m)
Φ6/Φ6.35	15~25
Φ9 /Φ9.5 2	35~40
Φ12/Φ12.7	45~60
Φ15.88	73~78
Φ19.05	75~80

> Wrap the Piping

1. Use the insulation sleeve to wrap the joint pad indoor unit and the connection pipe, and then use insulating material to pack and seal insulation pipe to prevent generation of condensate water on the joint part.

2. Connect the water outlet with drain pipes, and make the connection pipe, cables, and the drain straight.

3. Use plastic cable ties to wrap the connecting pipes, cables and drain hose. Run the pipe sloping downward.

➢ Fixing the indoor unit

1. Hang the mounting slots of the indoor unit on the upper portion of the mounting plate. Ensure that the hooks are properly seated on the plate.
2. Push toward the lower left side and the upper right side of the unit toward the mounting bracket, until the hook is embedded in the slot and makes a "click" sound.

Two hand-drawn diagrams showing a cable being inserted into a wall, with no text or symbols present.

▶ Electric Connection Requirement

- Loosen the screws and remove from the unit. - Connect the cables respectively to the corresponding terminals of the terminal board of the indoor unit (see wiring diagram), and if there are signals connected to plug, just conduct butt joint.

Technical line drawing of a mechanical or electronic component with internal structure (no text or symbols)

●Ground wire: Remove the grounding screw out of the electric bracket, cover the grounding wire end onto the grounding screw and screw it into the grounding hole.
- Fix the cable reliably with fasteners (Pressing board).
- Put the E-parts cover back in its original place and fasten it with screws.

Wiring Diagram

Variable speed

To Outdoor unit

To Outdoor unit

Connector

If there is a connector, connect it directly.

NOTE:

※ This manual usually includes the wiring mode for the different kind of A/C. We cannot exclude the possibility that some special type of wiring diagrams are not included.
※ The diagram are for reference only. If the entity is difference with this wiring diagram, please refer to the detailed wiring diagram adhered on the unit which you purchased.

8-3 Installation of outdoor Unit

➢ Packing list of the outdoor unit

NO.	Name	Quantity	Unit
1	Outdoor Unit	1	Set
2	Connecting pipe	2	PC
3	Plastic Strap	1	ROLL
4	Pipe Protection Ring	1	Set
5	Luting (putty)	1	PACKET

Selection of Installation location

➢ Install the connection pipe

Connect the Outdoor Unit with Connecting Pipe: Aim counter-bore of the connecting pipe at the stop valve, tighten the Taper nut with fingers. Then tighten the Tat nut with a torque wrench.

★When prolonging the piping, extra amount of refrigerant must be added so that the operation and performance of air conditioner will not be compromised.

Piping length	Amount of refrigerant to be added
≤5M	Not needed
5-15M	CC≤12000Btu	20g/m
	CC≥18000Btu	30g/m

Note: This table is for reference only.

Wiring Connection

1. Loosen the screws and remove E-parts cover from the unit.
2. Connect the cables respectively to the corresponding terminals of the terminal boat
   the outdoor unit (see the wiring diagram), and if there are signals connected to the plug, just conduct butt joint.
3. Ground wire: Remove the grounding screw out of the electric bracket, cover the grounding wire end onto the grounding screw and screw it into the grounding hole.
4. Fix the cable reliably with fasteners (Pressing board)
5. Put the E-parts cover back in its original place and fasten it with screws.

Wiring diagram

Wiring Diagram

constant speed

To power

To indoor unit

To power

To indoor unit

Variable speed

To Indoor unit
To power

To Indoor unit
To power

Connector

Pure electrical circuit lines without any symbols

If there is a connector, connect it directly.

NOTE:

※ This manual is usually includes the wiring mode for the different kind of A/C. We cannot exclude the possibility that some special type of wiring diagrams are not included.
※ The diagram are for reference only. If the entity is difference with this wiring diagram, please refer to the detailed wiring diagram adhered on the unit which you purchased.

Air Purging & Leakage Test

See chapter on "Refrigerant Pipes" - Air Purging & Leakage Test. Refer to the latest version of the Installation Manual which is available on the Rinnai website www.rinnai.com.au.

★Vacuum Pumping Method (R32 refrigerant evacuation must use the vacuum pumping method)

Before working on the air conditioner, remove the cover of the stop valve (gas and liquid valves) and be sure to retighten it afterward (to prevent the potential air leakage).

1. To prevent air leakage and spilling tighten all connecting nut of all flare tu

2. Connect the stop valve, charge hose, manifold valve, and vacuum pump.

3. Fully open the handle Lo of the manifold valve and apply vacuum for at least 15 minutes and check that the compound vacuum gauge reads -0.1MPa (-76cmHg).

4. After applying vacuum, fully open the stop valve with a hex wrench.

5. Check that both indoor and outdoor connections are free of air leakage.

Outdoor condensation drainage (Heat pump type only)

When the unit is heating, the condensir water and defrosting water can be out reliably through the drain house.

Installation:

Install the outdoor drain elbow in 25 hole on the base plate, and joint the dose to the elbow, so that the waste was formed in the outdoor unit can be drain out to a proper plate.

8-4 Check after installation and test operation

1. Check after installation

★ Electrical Safety Check

① If the supply voltage is as required.
② If there is any faulty or miss connection in each of the power, signal and grounding wires.
③ If the grounding wire of the air conditioner is securely grounded.

★ Installation Safety Check

① If the installation is secure.
② If the water drain is smooth.

③ If the wiring and piping are correctly installed.
④ Check that no foreign matter or tools are left inside the unit.

★ Leak test of the refrigerant

Depending on the installation method, the following methods may be used to check for suspect leak, on areas such as the four connections of the outdoor unit and the cores of the cut-off valves and t-valves:

① Bubble method: Apply of spray a uniform layer of soap water over the suspected leak spot and observe carefully for bubble.
② Instrument method: Checking for leak by pointing the probe of the leak detector according to the instruction to the suspect points of leak.

2. Test operation

★ Test preparation

※Verify that all piping and connection cables are well connected.
※Confirm that the values at the gas side the liquid-side are fully open.
※Connect the power cord to an independent power socket.
※Install batteries in remote control.

★ Test Operation method

① Turn on the power and push the ON/OFF switch button of the remote controller to start the air conditioner.
② Select COOL, HEAT (not available on cool-only models), SWING and other operation modes with the remote controller and see if the operation is ok.

9. MAINTENANCE

9.1 Troubleshooting Guide

Many error codes many appears on this air conditioner, and this troubleshooting guide is prepared for the maintenance personnel to detect the error position and the parts to be replaced during the troubleshooting process. In this Guide, the Troubleshooting Method is guided by the Error Name, and the Reference Code under the General Index is the error code of the Indoor Unit unit of the mainstream model supplied by the Company.

Example: “Indoor Unit coil sensor error” is coded as E3 in the error code of the Indoor Unit unit, but appears as flash-out via the trouble light of the Outdoor Unit machine. However, their troubleshooting method is the same, and use the same table as well.

General index: fix speed air conditioners only involve E1, E2, E3 and E4

No.	Error Name	Reference Code
1	Overcurrent Protection of Indoor Unit E0
2	Indoor Unit temperature sensor error E1
3	Outdoor Unit coil sensor error E2
4	Indoor Unit coil sensor error E3
5	Indoor Unit motor error of wall mounted air conditioner (PG motor)	E4
6	Indoor Unit motor error of wall mounted air conditioner (DC motor)	E4
7	Indoor Unit and Outdoor Unit communication error	E5 (5E)
8	Indoor EE Failure Eb
9	Outdoor Unit DC motor error (3-core terminal motor)	F0
10	Module protection error F1
11	PFC protection error F2
12	Compressor startup error F3
13	Exhaust sensor error F4
14	Pressing top head sensor error F5
15	Outdoor Unit temperature sensor error	F6
16	OVP or UVP error	F7
17	Outdoor Unit main PCB and module panel communication error	F8
18	Outdoor EE error	F9
19	Recirculated sensor error (four-way valve switch error)	FA
20	High-pressure protection	P2
21	Liquid Deficiency Protection	P3
22	Refrigeration Overload Protection	P4
23	Exhaust Protection	P5
24	Indoor High Temperature Protection	P6
25	Anti-freezing Protection in Refrigeration Room	P7
26	Overcurrent Protection	P8
27	Function protection prompt of frequency conversion Outdoor Unit machine	See the Error List
28	Troubleshooting Guide on Category-L Failures (Subdivided Failures)	See the Error List

Example:

Explanation of error	Cause: explain the principle of the specific error.Inspection path: The basic order of troubleshooting. Related key position
Tools required for inspection	Tools that should be carried for such troubleshooting, and replacing parts that may be necessary for such error.
Frequent problematic part	Any possibly broken part related to the error may be the parts that need to be replaced.
Inspection procedure and key points	All the troubleshooting procedures for the reference of maintenance staff are prepared from simple to complex, from surface to Indoor Unit, and from test to replacement. □ Although these key points do not cover all the error, and difficult or special problems are not included as well, but they can cover most of the common error.
Special attention	Here are some often-overlooked problems for the reference of the maintenance personnel.

The problems in the market are always more than we think, so it is necessary for the maintenance personnel to understand the principle of air conditioning operation, and to make a flexible judgment of the fault in combination with the actual conditions. We we qlcome the maintenance personnel to constantly put forward new problems in the actual work, record the solutions and enrich our troubleshooting guide list.

(1) E0- Overcurrent Protection of Indoor Unit

Explanation of error	Cause: The main PCB detects that the working current of the system exceeds the upper limit of protection, and will indicate "indoor unit overcurrent protectin:. The air conditioner stops running for protection and displays the failure code E0. Inspection path: current transformer → power line → compressor line → connector assembly
Tools required for inspection	Current clamp and multimeter
Frequent problematic part	Indoor unit panel, power line, compressor and complete machine
Inspection procedure and key points	1. If it is a fixed-frequency model, observe whether the live line passes through the current transformer; if not, lay the line accordingly and reboot for inspection.2. The current clamp is used to measure the working current and determine whether it is within the normal working current range of the nameplate. If normal working current is detected, it may be the fault of the current transformer and replace the main PCB of the indoor unit.3. Measure whether the power supply voltage is within the normal operating voltage range; if the working voltage is not normal, it is necessary to consider whether the local grid voltage is stable.4. If the working current exceeds the range and the working voltage is normal, the system may be blocked and the air-conditioning may be overloaded, which needs to be checked according to the actual situation.

(2) E1- Indoor Unit temperature sensor error

Explanation of error	Cause: The detection of short circuit or open circuit of Indoor Unit temperature sensor during the inspection of main PCB in the Indoor Unit machine, indicated by “Indoor Unit temperature sensor error”.Inspection path: Sensor→Sensor wire→Connectors→Indoor Unit main PCB
Tools required for inspection	Multimeter, 15KΩ standard sensor (25°C)
Frequent problematic part	Indoor Unit temperature sensor, Indoor Unit main PCB
Inspection procedure and key points	1. Check whether there's resistance problem, short circuit or open circuit in the sensor; the resistance value shall be within a reasonable range (15KΩ under the temperature of 25°C for frequency conversion machine)2. Check whether the sensor wire is broken.3. Check whether the terminal connectors are well fixed; check whether the weld between the terminal and the main PCB is loose, and pull the terminal slightly for inspection if necessary.4. Check whether the sensor is affected with damp.5. In case no standard sensor is available at present, replace the Indoor Unit temperature sensor by other sensor asides, and then check whether the error still exists; if the error disappears, replace the sensor; if the error still exists, check the Indoor Unit main PCB and change if necessary.
Special attention	Most Indoor Unit temperature sensors of the frequency conversion machine have a resistance value of 15KΩ.Do not use improper sensor during repairing and maintenance, or it may led to the wrong temperature sensing of the machine, the start error or shutdown error. You can switch the air conditioner to the “Blowing” mode, and judge the accuracy of sensor though environmental temperature displayed on the screen.In case a sensor with the resistance value over 15KΩ is used, the detected temperature will be much lower than the actual temperature, which may lead to the shutdown error under heating mode, or the startup error under cooling mode.In case a sensor with the resistance value below 15KΩ is used, the detected temperature will be much higher than the actual temperature, which may lead to the startup error under heating mode, or the shutdown error under cooling mode.

(3) E2 -Outdoor Unit coil sensor error

Explanation of error	Cause: The detection of short circuit or open circuit of Outdoor Unit coil sensor during the inspection of Outdoor Unit main PCB, indicated by “Outdoor Unit coil sensor error”.Inspection path: Sensor→Sensor wire→Connectors→Outdoor Unit main PCB
Tools required for inspection	Multimeter, 20KΩ standard sensor (25°C)
Frequent problematic part	Outdoor Unit coil sensor, Outdoor Unit main PCB
Inspection procedure and key points	1. Check whether there's resistance problem, short circuit or open circuit in the sensor; the resistance value shall with a reasonable range (about 20KΩ for frequency conversion machine)2. Check whether the sensor wire is broken.3. Check whether the terminal connectors are well fixed; check whether the weld between the terminal and the main PCB is loose, and pull the terminal slightly for inspection if necessary.4. Check whether the sensor is affected with damp. The coil sensor is quite easy to be affected with damp in case the lead of coil sensor is above the copper pipe.5. In case no standard sensor is available at present, replace the temperature sensor of Outdoor Unit coil by other sensor asides, and then check whether the error still exists; if the error disappears, replace the sensor; if the error still exists, check the Indoor Unit main PCB and change if necessary.
Special attention	Most Indoor Unit temperature sensors of the frequency conversion machine have a resistance value of 20KΩ.Do not use improper sensor during repairing and maintenance, or it may led to the start of protection mode due to wrong temperature sensing of the machine, or the protection error.In case a sensor with the resistance value over 20KΩ is used, the detected temperature will be much lower than the actual temperature, which may lead to the frequent entering of defrost mode, the illusory defrosting or the protection error during the cooling process.In case a sensor with the resistance value below 20KΩ is used, the detected temperature will be much higher than the actual temperature, which may lead to defrost error during the heating process, or the start of protection during the cooling process.

(4) E3 -Indoor Unit coil sensor error

Explanation of error	Cause: The detection of short circuit or open circuit of Indoor Unit coil sensor during the inspection of Indoor Unit main PCB, indicated by “Indoor Unit coil sensor error”.Inspection path: Sensor→Sensor wire→Connectors→Indoor Unit main PCB
Tools required for inspection	Multimeter,, 5KΩ or 20KΩ standard sensoe (25°C)
Frequent problematic part	Indoor Unit temperature sensor, Indoor Unit main PCB
Inspection procedure and key points	1. Check whether there's resistance problem, short circuit or open circuit in the sensor; the resistance value shall with a reasonable range (about 20KΩ for frequency conversion machine)2. Check whether the sensor wire is broken.3. Check whether the terminal connectors are well fixed; check whether the weld between the terminal and the main PCB is loose., and pull the terminal slightly for inspection if necessary.4. Check whether the sensor is affected with damp. The coil sensor is quite easy to be affected with damp in case the lead of coil sensor is above the copper pipe.5. In case no standard sensor is available at present, replace the temperature sensor of Indoor Unit coil by other sensor asides, and then check whether the error still exists; if the error disappears, replace the sensor; if the error still exists, check the Indoor Unit main PCB and change if necessary.
Special attention	Most Indoor Unit temperature sensors of the frequency conversion machine have a resistance value of 20KΩ.Do not use improper sensor during repairing and maintenance, or it may led to the start of anti-frosting or overheat protection mode due to wrong temperature sensing of the machine.In case a sensor with the resistance value over 20KΩ is used, the detected temperature will be much lower than the actual temperature, which may lead to the high pressure of cold-blast protection system during the heating process, or the frequent start of anti-freezing protection during the cooling process.n case a sensor with the resistance value below 20KΩ is used, the detected temperature will be much higher than the actual temperature, which may lead to the frequent start of overheat protection mode during the heating or the overload protection during the cooling process.

(5) E4 -Indoor Unit motor error of wall mounted air conditioner (PG motor)

Explanation of error	Cause: PG motor is equipped with speed feedback signal line. When the feedback signal of speed is not received by the Indoor Unit main PCB, it has no way to recognize the rotating speed of motor, which will be indicated as “Indoor Unit motor error”. Main causes for the disappearance of speed feedback signal are as follows:The fan is stucked; 2. The speed feedback component in the motor is broken; 3. Error of receiving circuit for the speed feedback signal from the Indoor Unit main PCB.
Tools required for inspection	Multimeter, A PG motor in normal working condition
Frequent problematic part	Mechanical jam problem of Indoor Unit motor, PG motor, Indoor Unit main PCB
Inspection procedure and key points	1. Check whether the motor can work for a period of time before the error occurs. If yes, the reason of mechanical jam can be exclude.2. Disconnect the power supply and move the fan bladeof Indoor Unit machine by hand to see if there’s any resistance. Some occasional Indoor Unit motor error may relate to bearing coordination.3. Reconnect the drive wire and speed feedback wire, thus to exclude any motor error due to connector loosening.4. Check whether the plug-in terminal of speed feedback on the PCB is loose, and pull the terminal slightly for inspection if necessary.5. Replace the motor in the faulted air conditioner with other PG motor (do not fix it with the fan for the time being), if the main PCB still indicates “Indoor Unit motor error”, then replace the Indoor Unit main PCB; if the error disappears, replace the Indoor Unit motor.
Special attention	The Indoor Unit main PCB will not indicate “Indoor Unit motor error” when the Indoor Unit motor is still rotating; sometimes such error will not be reported when obvious motor problems exist (such as the low-speed rotation due to damaged motor capacitors, or non-uniform rotating speed due to abnormal speed feedback.Therefore, patience of the maintenance staff is required for the troubleshooting of motor error. You shall compare it with the normal condition, and detect and solve the problem in a flexible way.

(6) E4- Indoor Unit motor error of wall mounted air conditioner (DC motor)

Explanation of error	Cause: The Indoor Unit motor of some highly energy efficient models is DC motor using a green plug through which the Indoor Unit main PCB can drive the motor and sense the current rotational speed feedback. When the Indoor Unit main PCB cannot receive the rotational speed feedback signal of the motor, it will indicate “DC motor error”. Disappearance of the rotational speed feedback signal may be caused by:1 The fan is stuck and cannot work; 2 The speed feedback element inside the motor is destroyed; 3 There’s something wrong with the speed feedback signal receiving circuit of the Indoor Unit main PCB.Inspection path: Is DC motor stuck by foreign matter→motor destroyed → Motor terminal connectors→Indoor Unit main PCB
Tools required for inspection	Multimeter, a DC motor in normal working condition
Frequent problematic part	Mechanical jam of Indoor Unit motor, Indoor Unit DC motor, Indoor Unit main PCB
Inspection procedure and key points	1. Check whether the motor accelerates to extremely high speed before the error occurs. If it can work for a period, the reason of mechanical jam can be excluded.2. Plug and unplug the terminal of the DC motor again to exclude any motor error due to connector loosening, and pull the terminal slightly for inspection if necessary.3. Replace the motor in the faulted air conditioner with other DC motor to plug in the Indoor Unit main PCB (do not fix it with the fan for the time being), if the main PCB still indicates “DC motor error”, then replace the Indoor Unit main PCB; if the error disappears, replace the DC motor.4. Multimeter can be used to distinguish whether it is main PCB problem or motor problem by: connect the motor with the main PCB and pay attention to the second (yellow) and fourth (black) wire from the outermost side among four lines of the terminal of the DC motor. After the air conditioner powers on in the cooling mode for a while, the voltage between the yellow and black wires should rise gradually and the motor should accelerates slowly, if the DC motor still won’t rotate, then the DC motor is destroyed.
Special attention	Five lead wires division: Count from the outermost side of the four wires of the DC motor terminal, the first blue wire is the speed feedback wire with a voltage of 0.5-5V when the motor rotates; the second yellow wire is the motor driving wire with a voltage of 2.0-7.5V when the motor rotates; the second white wire is 15V power cord with a voltage of 15V in normal condition; the fourth black wire is 0V DC earth wire which is the benchmark of all the voltage tests; the fifth (red) wire is 310V wire which is strong with a voltage of 310V in normal condition, so be careful of electric shock.

(7) E5(5E) -Indoor Unit and Outdoor Unit communication error

Explanation of error	Cause: The frequency converter needs Indoor Unit and Outdoor Unit communication. When the communication cannot be reached, the Indoor Unit and Outdoor Unit units will indicate “Indoor Unit and Outdoor Unit communication error”. Only “Indoor Unit main PCB, connecting cable and Outdoor Unit main PCB” are related to communication; but sometimes the communication error will be indicated when the Outdoor Unit unit has no power and the Indoor Unit unit cannot connect with the Outdoor Unit unit due to other errors, then such situation shall be distinguished from “pure communication error” and treated in a different way.Inspection path: Check if the Outdoor Unit unit can power on and work (normally, the indicator light will turn off after lighting for several seconds, relay picks up, and PTC won’t heat seriously)1. Can power on and work: Are the Indoor Unit unit and Outdoor Unit unit matched→is the phase sequence of connecting wires of Indoor Unit and Outdoor Unit units correct (the live wire of the Indoor Unit unit connects with that of the Outdoor Unit unit, the null wire of the Indoor Unit unit connects with that of the Outdoor Unit unit)→Connecting wires touched well→Indoor Unit main PCB replacement→Outdoor Unit main PCB replacement2. Cannot power on and work: Can AC 220V be delivered to the terminal block of the Outdoor Unit unit→Can the bridge rectifier and module panel generate DC 310V→Can the Outdoor Unit main PCB generate a low voltage power supply of DC 5V→Does the Outdoor Unit main PCB show the status of periodical reset.
Tools required for inspection	Multimeter, Indoor Unit main PCB in normal condition
Frequent problematic part	Connecting wire phase sequence and contact, Indoor Unit main PCB, Outdoor Unit main PCB, module panel
Inspection procedure and key points	Firstly, the IDU and the ODU should be matched and connected properly.Observe the Outdoor Unit main PCB, turn on the air conditioner, three lights are all lighted up then off and the relay pulls in. If not, it is power supply problem.Connect the black signal line S to terminal N of ODU. Turn on the A/C, if "E5" is still reported, the Outdoor Unit main PCB need to be replaced. If "E5" is still reported at this time, go to step 4.Change a new Indoor Unit main PCB, if the error code E5 remains, then the problem should be on the Outdoor Unit main PCB.
Special attention	When the Outdoor Unit unit not power on: If the Indoor Unit terminal board does not transmit 220V power, replace the Indoor Unit main PCB; if the Outdoor Unit terminal board has 220V power, first check if (fuse, reactor and bridge rectifier) are normal. There is still something wrong, replace the whole set of Outdoor Unit control unit; for the control unit composed of several function boards, try disconnecting the weak-current data wires among several control boards and then power the Outdoor Unit unit on, if the main PCB can be powered on and initialized successfully, then it's the module panel problems; if the Outdoor Unit main PCB still cannot be powered on and initialized, replace the Outdoor Unit main PCB.

(8) Eb -Indoor EE Failure

Explanation of error	Cause: Many parameters need to be preset for the running of the indoor unit of the air conditioner and such parameters are placed in a data storage 8-feet chip, which is called "EEPROM" or "EE" for short. The motor on the Indoor Unit main PCB can only work after reading the data stored in EE and if not read, the failure code "Outdoor EE Failure" will be indicated and raised in the indoor unit. Reasons for data not being read are as follows:1. wrong EE chip data format;2. EE chip is broken;3. bad contact of EE or fault of EE reading circuit;4. backward installation of EE chip.Inspection path: Indoor Unit main PCB.
Tools required for inspection	/
Frequent problematic part	Bad contact of EE, Indoor Unit main PCB.
Inspection procedure and key points	Replace the Indoor Unit main PCB directly.

(9) F0- Outdoor Unit DC motor error (3-core terminal motor)

Explanation of error	Cause: Our frequency changing Outdoor Unit unit uses the 3-lead-wire DC motor, or “Outdoor Unit driven DC motor” for short, after 2012. It has no speed feedback circuit but 3 drive lead wires and its driving principle is similar to that of the compressor. The main PCB will indicate “Outdoor Unit DC motor error” when it detects imbalanced current on the three lead wires of the driving motor.Inspection path: Is the DC motor stuck by foreign matters→Motor terminal connectors→Outdoor Unit main PCB→Motor
Tools required for inspection	Outdoor Unit main PCB in normal condition
Frequent problematic part	Mechanical jam of Outdoor Unit motor, Outdoor Unit main PCB, Outdoor Unit DC motor
Inspection procedure and key points	1. First exclude the possibility of mechanical jam of Outdoor Unit fan blades..2. Observe if the terminal of the motor is not connected firmly or the order of lead wires is correct. If the Outdoor Unit motor of the newly installed air conditioner rotates reversely, first observe if the color order of the three lead wires is correct, or change the order of any two of the three lead wires of the motor to see if the motor can rotate in the forward direction.3. The DC motor of this scheme is relatively simple and reliable, so the problem is more likely to be caused by the drive part of the motor of the Outdoor Unit main PCB. The maintenance personnel may as well prepare matched Outdoor Unit main PCB before maintenance. If the motor returns to normal after replacing the main PCB , then it’s the main PCB problem; if it still indicates Outdoor Unit DC motor error, then replace the Outdoor Unit DC motor.
Special attention	Unlike the 5-core Indoor Unit DC motor, there will be a process of motor blade position locking before the 3-core DC motor with Outdoor Unit drive starts to rotate. The fan blades will shake mechanically for 3-5 seconds and then rotate slowly, which is normal phenomenon.

(10) F1 -Module protection error

Explanation of error	Cause: The power module is the part to directly drive the compressor to work. It can protect the machine in time when overcurrent, overvoltage or overheat occurs and stops the compressor from working. It will, at the same time, send “shutdown request” to the module panel. The error triggered by the “shutdown request” is called “module protection error”.Inspection path: Supply voltage → Compressor wire, reactor wire → System blocked → Module panel damaged → Outdoor Unit main PCB destroyed → Compressor destroyed
Tools required for inspection	Multimeter, pressure gauge, megameter, module panel in normal condition
Frequent problematic part	Supply voltage, compressor wire, reactor, system pressure, module panel, Outdoor Unit main PCB, compressor
Inspection procedure and key points	1. Is the order of compressor wires not correct, which makes the compressor rotate reversely? Try exchanging the compressor wires on U-V phase to see if the problem can be solved?2. Check if the supply voltage is unstable and highly volatile, and test if the system pressure is normal. High system pressure will cause rotating problems to the compressor.3. Is the module panel fixed to the radiator firmly? Will it cause pool cooling? Is the Indoor Unit and Outdoor Unit heat exchanger dirty, which lead to poor heat transfer and high system pressure?4. If “module protection error” will be indicated immediately after starting up, it is almost certain that it’s substantial error, having nothing to do with supply voltage and system pressure, it is suggested to observe if there is any component destroyed by strike arc near the module panel; use the multimeter to test if the resistances between any two compressor wires are the same. The resistances between any two compressor wires in normal condition are tiny resistances at ohm level and arc basically equal; then use the megameter to measure if the resistance insulation of the three compressor wires against the earth wire is good (normally at MΩ level), and check if the reactor wire is well connected or the reactor is destroyed.5. Test if the 15V and 5V (3.3V) power supply on the module panel is stable and exclude the module panel error caused by power supply of the Outdoor Unit main PCB.6. Methods for judging whether the power module is damaged: use the “diode position” of the multimeter to measure the features of P of the module panel against U-V-W three phases respectively. Measure the power module P-U, P-V and P-W, there is always infinite resistance at one side and fixed on-state voltage at the other side (generally 0.5V); measure the features between N-U, N-V and N-W in the same way, if short circuit occurs during any measurement, then the module is destroyed.7. Replace with the module panel in normal condition for test. If the test is normal after changing the module panel, then the original module panel is destroyed.8. After excluding problems of module, connecting wires, system and power supply, distinguish by ear. If there is only electromagnetic sound and the compressor does not work; or the sound of irregular running appears after the compressor works for a while and then it shuts down and indicates error; chances are that the compressor is blocked or destroyed, consider replacing the compressor.

(11) F2- PFC protection error

Explanation of error	Cause: PFC board is a component of the inverter air conditioner for power factor correction and voltage boosting. When the PFC board cannot perform power calibration as normal because of overcurrent and overvoltage, it will indicate “PFC protection error” and its function may also be integrated with the module panel or main PCB.Inspection path: Supply voltage→AC and DC power path→PFC board data wire→PFC board→Main PCB
Tools required for inspection	Multimeter, PFC board in normal condition
Frequent problematic part	Supply voltage, reactor, PFC board, module panel, Outdoor Unit main PCB
Inspection procedure and key points	1. Check if the supply voltage is unstable and highly volatile or the voltage is too low (below AC 135V)2. The reactor is one of core parts of PFC. Check if the reactor itself is destroyed and the reactor connecting wire is in poor connection, which makes PFC functions not performed. Do not remove the reactor and replace with short circuit by no means.3. If “PFC protection error” will be indicated immediately after starting up, it is almost certain that it’s substantial error, having nothing to do with supply voltage, it is suggested to observe if there is any component destroyed by strike arc near the module panel4. Test if the 15V and 5V (3.3V) power supply on the PFC board is stable and exclude the PFC board error caused by power supply of the Outdoor Unit main PCB.5. Replace with the PFC board in normal condition for test. If the test is normal after changing the PFC board, then the original PFC board is destroyed.6. The possibility that there is something wrong with 15V or 5V power of the module panel that causes the control power supply problem of the PFC board is not excluded.7. Some module panels integrate PFC function and compressor drive function in one, so just replace with an integrated module panel.8. For single-panel single-chip main PCBs, if PFC protection error appears, and there is no problem in supply voltage, reactor connection or reactor, just replace the controller of the Outdoor Unit unit.

(12) F3- Compressor out-of-step error

Explanation of error	Cause: The module panel will constantly test the current of lead wires of the compressor and calculate the position of the rotator of the compressor when driving the compressor to work. When the compressor deviates far from the normal operating status, it will indicate “compressor out-of-step error” because the current of the compressor wires is too high or it cannot detect the position of the rotator. This error always follows “module protection error”, so they have similar inspection methods.Inspection path: supply voltage→Compressor wire, reactor wire→System blocked→Module panel damaged→Outdoor Unit main PCB destroyed→Compressor destroyed
Tools required for inspection	Multimeter, pressure gauge, module panel in normal condition
Frequent problematic part	Supply voltage, compressor wire, reactor, system pressure, module panel, Outdoor Unit main PCB, compressor
Inspection procedure and key points	Is the order of compressor wires not correct, which makes the compressor rotate reversely? Try exchanging the compressor wires on U-V phase to see if the problem can be solved?Check if the supply voltage is unstable and highly volatile, and test if the system pressure is normal. High system pressure will cause rotating problems to the compressor.Is the module panel fixed to the radiator firmly? Will it cause pool cooling? Is the Indoor Unit and Outdoor Unit heat exchanger dirty, which lead to poor heat transfer and high system pressure?If “compressor out-of-step error” will be indicated immediately after starting up, it is almost certain that it’s substantial error, having nothing to do with supply voltage and system pressure, it is suggested to observe if there is any component destroyed by strike arc near the module panel; use the multimeter to test if the resistances between any two compressor wires are the same. The resistances between any two compressor wires in normal condition are tiny resistances at ohm level and are basically equal; then use the megameter to measure if the resistance insulation of the three compressor wires against the earth wire is good (normally at MΩ level), and check if the reactor wire is well connected or the reactor is destroyed. Check if the DC voltage between P-N is too high (above 200V).Test if the 15V and 5V (3.3V) power supply on the module panel is stable and exclude the module panel error caused by power supply of the Outdoor Unit main PCB.Replace with the module panel in normal condition for test. If the test is normal after changing the module panel, then the original module panel is destroyed.After excluding problems of module, connecting wires, system and power supply, distinguish by ear. If there is only electromagnetic sound and the compressor does not work; or the sound of irregular running appears after the compressor works for a while and then it shuts down and indicates error; chances are that the compressor is blocked or destroyed, consider replacing the compressor.
Special attention	For the “compressor out-of-step error” and “module protection error”, the former is calculated by the main chip of the module panel and the latter is detected by the power module itself. They are abnormal operating phenomenon of the compressor essentially. If there is uncertainty about either error, analyze both together with similar method. For inverter air conditioners that are in poor electrical environment or are old, occasional occurrence of such errors is a normal protection.

(13) F4- Exhaust sensor error

Explanation of error	Cause: The Outdoor Unit main PCB will indicate “exhaust sensor error” and send it to the Indoor Unit main PCB when it detects short circuit or open circuit of the exhaust sensor.Inspection path: Exhaust sensor→Sensor wire→Connectors→Outdoor Unit main PCB
Tools required for inspection	Multimeter, 50KΩ standard exhaust sensor (25°C)
Frequent problematic part	Exhaust sensor, Outdoor Unit main PCB
Inspection procedure and key points	1. Check if there is any evident resistance problem in the sensor. Whether in short circuit or open circuit, the resistance should maintain in a reasonable range (about 50KΩ when the compressor is not working and between 3 KΩ and 30 KΩ after the compressor works for a while, the corresponding exhaust temperature should be 100°C -38°C).2. Check if the sensor wire or the sensor connecting wire is damaged.3. Check if the connecting terminal is connected firmly, the weld between the terminal and the main PCB is loose; pull the terminal slightly for inspection if necessary.4. Check whether the sensor is affected with damp. The coil sensor is quite easy to be affected with damp in case the lead wire of coil sensor is above the copper pipe.5. If there is no standard sensor at hand, exchange the exhaust sensor with the one beside it to see if the error changes. If yes, there is something wrong with the sensor and it should be replaced; if it still indicates “Outdoor Unit coil sensor error”, replace the Outdoor Unit main PCB.
Special attention	Most exhaust sensors have a standard resistance of 50KΩ (25 °C). Do not use improper sensor during maintenance, or the machine will sense the exhaust temperature mistakenly and enters the protection state frequently. For example, in the case where replace the 20KΩ coil sensor for the exhaust sensor by mistake, the exhaust temperature that the Outdoor Unit main PCB senses will be higher than the actual exhaust temperature, which will make normal air conditioners enter the high exhaust temperature protection state frequently, and the compressor frequency threshold will rise and lead to shutdown of the compressor.

(14) F5 - Compressor top head sensor error

Explanation of error	Cause: The compressor top head sensor is a compressor top head temperature protection switch most of the time. It keeps closed (short circuit) when the compressor temperature is normal and switches off (open circuit) when the temperature is too high. The Outdoor Unit main PCB will indicate “compressor top head sensor error” when it senses disconnection of the compressor top head protection switch.Inspection path: Compressor top head sensor (temperature protection switch)→Sensor wire→Connectors→Outdoor Unit main PCB
Tools required for inspection	Pressure gauge, multimeter
Frequent problematic part	System pressure, liquid deficiency, compressor top head sensor (temperature protection switch), Outdoor Unit main PCB
Inspection procedure and key points	1. First check if the compressor top head temperature is too high (above 110°C) and causes action of the compressor top head sensor (temperature protection switch); reasons why the compressor top head temperature is too high may be: the system is deficient in liquid and the compressor idles; the system is blocked and the pressure of the compressor is too high.2. After excluding the possibility of the system problem, please note that the temperature protection switch is closed normally. Test if the terminals of the sensor are in the short-circuit condition with the multimeter. In the case of open circuit, then there is something wrong with the sensor or lead wires.3. Check if the sensor wire or the sensor connecting wire is damaged.4. Check if the connecting terminal is connected firmly, the weld between the terminal and the main PCB is loose; pull the terminal slightly for inspection if necessary.5. Disconnect the power supply and short circuit a metal with the compressor top head terminal of the Outdoor Unit main PCB. If the compressor top head sensor error disappears after start up, then replace the sensor; if the error still occurs, it’s probably the main PCB problem, replace the Outdoor Unit main PCB.
Special attention	The compressor top head sensor is just a temperature switch which is highly reliable and is less likely to go wrong generally. Pay more attention to the system pressure and the compressor temperature.

(15) F6- Outdoor Unit temperature sensor error

Explanation of error	Cause: The detection of short circuit or open circuit of Outdoor Unit temperature sensor during the inspection of Outdoor Unit main PCB, indicated by "Outdoor Unit temperature sensor error".Inspection path: Sensor→Sensor wire→Connectors→Outdoor Unit main PCB
Tools required for inspection	Multimeter, 15KΩ standard sensor (25°C)
Frequent problematic part	Outdoor Unit temperature sensor, Outdoor Unit main PCB.
Inspection procedure and key points	1. Check whether there's resistance problem, short circuit or open circuit in the sensor; the resistance value shall be within a reasonable range (15KΩ under the temperature of 25°C).2. Check whether the sensor wire is broken.3. Check whether the t terminal connectors are well fixed; check whether the weld between the terminal and the main PCB is loose, and pull the terminal slightly for inspection if necessary.4. Check whether the sensor is affected with damp.5. In case no standard sensor is available at present, replace the Outdoor Unit temperature sensor with the other sensor asides, and then check whether the error still exists; if the error disappears, replace the sensor; if the error still exists, it's possible that the main PCB is faulted, change the Outdoor Unit main PCB.
Special attention	Most of the standard resistance values of the Outdoor Unit temperature sensors are 15KΩ (hen temperature is at 25°Q), and the higher the temeprautre is, the lower the resistance value is, and the lower the temperature is, the higher the resistance value is. Do not use improper sensor during repairing and maintenance, or it may led to the wrong temperature sensing of the machine.

(16) F7-OVP or UVP error

Explanation of error	Cause: All the inverter air conditioners are equipped with voltage inspection circuits, but different models of machines have different locations for the voltage inspection (on the module panel or Outdoor Unit main PCB). When the supply voltage is lower than 135V or higher than 275V, the inspectio circuit would detect over or under voltage protection signal and send it to the Outdoor Unit main PCB and the Outdoor Unit main PCB would raise the alarm "OVP or UVP error" and indicate it through the Indoor Unit motor.Inspection path: supply voltage → Indoor Unit direct current voltage → reactor wiring → module panel → Outdoor Unit main PCB.
Tools required for inspection	Multimeter
Frequent problematic part	Supply voltage, reactor, moduel panel and Outdoor Unit main PCB.
Inspection procedure and key points	1. First, check the supply environment of the user, especially shall check when the compressor of the air conditioner has been running for a while. The normal supply voltage shall be between 198V and 242V and the minimum work assurance range of the air conditioner shall be within 165V and 265V and it shall be especially noted that the voltage value shall not be decreased significantly after running of the compressor (voltage decreasing by over 25V), because if the supply voltage is decreased by a lot, it means the supply line capacity is insufficient and the user is usually suggested to replace the circuit or install a specizlied air conditioner supply voltage stabilizer.2. For the Outdoor Unit machines with PFC panels (without separate rectifier bridges), the operator shall ensure if the PFC function is on with the direct current voltage grade of the multimeter. When the compressor is running, voltage between P and N ends detected on the test module panel or Outdoor Unit main PCB shall be over 200V and if the voltage is below that range, it is possible that the reactor is faulted or the PFC is broken.3. When the air conditioner is switched on, if the compressor is not running but there is a alarm of "OVP or UVP error" and the power voltage detected with the multimeter is not below 150V, it's probably the voltage inspection circuit is faulted. The operator shall check and confirm the voltage inspection circuit is on which PCB first and then replace it. The regular replacement: for the Outdoor Unit machine of single panel single chip, replace the Outdoor Unit controller directly; and for the machine of two panels, replace the module panel.
Special attention	For some models, OVP or UVP error signal is delivered through the connector wires between the module panel and the Outdoor Unit main PCB, thus it is possible the voltage signal is not delivered when the communication between teh module panle and the Outdoor Unit main PCB is not good. It is possible that the error is pause raised but after some minutes that the error is finally confirmed as "Outdoor Unit main PCB and module pannel communication error", which shall be specially noted.

(17) F8-Outdoor Unit main PCB and module panel communication error (exclusive of Outdoor Unit machine of single panel)

Explanation of error	Cause: Only the models with the module panels separated with the Outdoor Unit main PCBs may have this error. When the machine is running normally, the module panel and the Outdoor Unit main PCB would coordinate with each other on the communication to work and when the communication is off, the Outdoor Unit main PCB would raise the alarm of "main PCB and module panel communication error". Only "module panel, data line and Outdoor Unit main PCB" are related to such communication.Inspection path: data line connection → module panel power → module panel →Outdoor Unit main PCB
Tools required for inspection	Multimeter and regular module panel.
Frequent problematic part	Module panel and main control data line, module panel and Outdoor Unit main PCB.
Inspection procedure and key points	1. First check if the communication connection line (mostly 4 chips) between the module panel and main contrl panel gets loose and if the connection is faulted.2. Measure and check with a multimeter if the power from the Outdoor Unit main PCB is normal and especially note that if the 5V (3.3V) power is led to the module panel. Eliminate the possibility that it's not running normally because there is no 5V (3.3V) power at the module panel.3. The maintenance personnel shall replace the module panel of the faulted air conditioner with a regular module panel taken with him and if the communication error disappears when the Outdoor Unit machine is switched on, it means the original module panel is faulted and if the error is still there, maybe the Outdoor Unit main PCB shall be replaced.

(18) F9- outdoor EE error

Explanation of error	Cause: Many parameters need to be preset for the running of the Outdoor Unit unit of the air conditioner and such parameters are placed in a data storage 8-feet chip, which is called "EEPROM" or "EE" for short. The motor on the Outdoor Unit main PCB can only work after reading the data stored in EE and if not read, the alarm "outdoor EE error" would be reported and raised in the Indoor Unit machine. Reasons for data not being read are as follows:1. wrong EE chip data format;2. EE chip is broken;3. bad contact of EE or fault of EE reading circuit;4. backward installation of EE chip.Inspection path: Outdoor Unit main PCB.
Tools required for inspection	None.
Frequent problematic part	Bad contact of EE, Outdoor Unit main PCB.
Inspection procedure and key points	1. Replace the Outdoor Unit main PCB directly.

(19) FA- recirculated sensor error (only models of electronic expansion valves are involved)

Explanation of error	Cause: The recirculated sensors are only used on machine models of electronic expansion valves and the back temperature value is considered as the basis for adjustment of the electronic expansion valve and determination if the four-way valve changes the position normally during heating. When the main PCB detects open circuit or short circuit of the recirculated sensor, it would raise an alarm of "recirculated sensor error" and send it to the Indoor Unit main PCB to indicate it.Inspection path: four-way valve →recirculated sensor → sensor wire → connectors → Outdoor Unit main PCB
Tools required for inspection	Multimeter, pressure meter, normal 20KΩ recirculated sensor
Frequent problematic part	Four-way valve, recirculated sensor, Outdoor Unit main PCB.
Inspection procedure and key points	1. If the error appears in heating but not in cooling, first check if the four-way valve failed to change the position or there is a back flow, which can be estimated by measuring the high and low pressures with the pressure meter; for the consideration of electricity control, we can use a multimeter. During heating, check if the four-way valve terminal can switch a circuit of 220V, if yes and the four-way valve still is faulted in the position changing, the four-way valve is faulted; and if there is no circuit over 220V in heating, it means the Outdoor Unit main control valve is faulted.2. If it is not the four-way valve that is faulted, check on the resistance value and short circuit problems and the resistance value shall be within a proper range (around 20KΩ at temperature of 25°C).3. Check whether the terminal connectors are well fixed; check whether the weld between the terminal and the main PCB is loose, and pull the terminal slightly for inspection if necessary.4. Check whether the sensor is affected with damp. For the recirculated sensor, if the led is on the above and thecopper pipe is below, it is possible to be damped.5. The maintenance personnel can replace the possibly faulted recirculated sensor with a normal one and if the error disappears, it means the original recirculated sensor is faulted and needs to be replaced; and if the error is still there, consider to replace the Outdoor Unit main PCB.

(20) P2 - High-pressure protection

Explanation of error	Cause: In standby state or when the equipment is running, the High-pressure switch is disconnected three times (within 20 minutes) and reported as "High-pressure protection";Inspection path: High-pressure switch cable → connector → High-pressure switch → main PCB
Tools required for inspection	Multimeter, connectoin line and High-pressure swtich
Frequent problematic part	High-pressure swtich connectoin line, fluorine deficiency of unit and High-pressure swtich
Inspection procedure and key points	1. Check whether the plug-in terminals are firmly connected and whether the terminals and the main PCB are welded loosely. If necessary, gently pull them to check;2. Use a multimeter to measure whether it is disconnected;3. Use the multimeter to check the state of the High-pressure swtich and check whether it is in the OFF state (normally OFF, unusual disconnection);4. If the pressure is normal and the High-pressure switch is kept open, it is positive that the pressure voltage is faulted;5. If the pressure switch is normal and the connection line is tact and the failure is still reported, replace the corresponding main PCB.
Special attention	The reason why High-pressure switches are often disconnected is the leakage of equipment. When the high voltage switch is off, first check whether the air conditioner's pressure is normal. If it is normal but the failure is still displayed afterre replacing the Outdoor Unit main PCB, it is possible that the connecting pipe may be too long or the Outdoor Unit ambinet temperature is too low

(21) P3 –Liquid Deficiency Protection

Explanation of error	Cause: The liquid volume of the system is less than 30%, which leads to non-refrigeration and liquid shortage protection.Inspection path: whether the valves of the outdoor unit are opened → whether the evaporator, condenser, connectoin pipe are damaged or cracked → whether the environmental temperature sensor and the coil temperature sensor are damaged at the same time
Tools required for inspection	Hex nut, multimeter, pressure gauge
Frequent problematic part	Stop valve, evaporator, condenser and connection pipe
Inspection procedure and key points	1. Check the stop valve and turn it counterclockwise with hexagons to see if the valve is not open and the opening is not enough;2. Check whether the evaporator, condenser and connection pipe are damaged or cracked, and focus on checking whether there is refrigerant leakage in the welding part and connection pipe joint;3. Measure the temperature sensor with the multimeter at ambient temperature, and whether the coil temperature sensor has abnormal resistance at the same time.

(22) P4 –Refrigeration Overload Protection

Explanation of error	Cause: Outdoor coil sensor senses excessive temperature, prevents compressor from overloading, and reduces frequency.Inspection path: the system is dirty or blocked → the condenser is dirty → Outdoor Unit coil sensor is faulted → AC motor not running → failure of divider resistance of controller
Tools required for inspection	Multimeter and pressure gauge
Frequent problematic part	Coil sensor, condenser and outdoor unit controller
Inspection procedure and key points	1. Check the coil sensor with a multimeter to see if the resistance value is normal (20KΩ standard sensor, 25°C)2. Use a pressure gauge to detect system pressure. If the system pressure is high, it may cause Indoor Unit dirty blockage or poor Outdoor Unit heat transfer, which may lead to high coil temperature.3. Observe whether the speed of AC motor is too low, which leads to poor heat transfer and high coil temperature.4. Use a multimeter to check whether the voltage dividing resistance of temperature sensor circuit of Outdoor Unit controller coil is abnormal. If you don't know how to measure it, try to replace the Outdoor Unit controller to check whether it returns to normal state.

(23) P5-Exhaust Protection

Explanation of error	Cause: the exhaust sensor detects that the exhaust temperature is too high and triggers the exhaust protection shutdown. Inspection path: system pressure → indoor / outdoor air inlet → exhaust sensor → Outdoor Unit panel
Tools required for inspection	Multimeter, pressure gauge, regular 50K Ω exhaust sensor (25°C)
Frequent problematic part	Indoor coil sensor
Inspection procedure and key points	1. Check if the system pressure is low, if is, usually it the shortage of liquid that leads to excessive exhaust temperature protection; 2. Check whether the indoor/outdoor air inlet is blocked, such as whether the evaporator or condenser is dirty or whether the filter is dirty or blocked and if inlet is affected, remove the shield. 3. Check whether the air volume at the tuyere is too small, observe whether the Indoor Unit fan blades are dirty blocked, and if dirty blocked blades are found, clean the blades. 4. Measure the resistance drift of the exhaust sensor with a multimeter at ambient temperature.

(24) P6-Indoor High Temperature Protection

Explanation of error	Cause: Protection shutdown due to temperature of indoor coil. Inspection path: indoor air inlet → indoor unit filter → indoor motor → indoor coil sensor
Tools required for inspection	Multimeter, pressure gauge, regular 20K Ω exhaust sensor (25°C)
Frequent problematic part	1. Check whether the indoor air inlet is blocked or not, if it affects the wind, remove the shield;2. Check whether the filter is dirty or not. If dirty blockage is found in the filter, clean the filter.3. Check if the air volume is too small and if the indoor unit fan is blocked, if it is, clean the fan.4. Measure the drift of the inner disk sensor with a multimeter at ambient temperature.
Inspection procedure and key points	P6 usually refers to the high temperature protection of the Indoor Unit heating coil due to poor air inlet.

(25) P7-Anti-freezing Protection in Refrigeration Room

Explanation of error	Cause: Protection shutdown due to temperature of indoor coil. Inspection path: indoor air inlet → indoor unit filter → indoor motor → indoor coil sensor
Tools required for inspection	Multimeter, pressure gauge, regular 20K Ω exhaust sensor (25°C)
Frequent problematic part	Indoor coil sensor
Inspection procedure and key points	1. Check whether the indoor air inlet is blocked or not, if it affects the wind, remove the shield;2. Check whether the filter is dirty or not. If dirty blockage is found in the filter, clean the filter.3. Check if the air volume at teh tuyere is too small and if the indoor unit fan is blocked, if is, clean the fan.4. Measure the drift of the inner disk sensor with a multimeter at ambient temperature.
Special attention	P7 usually refers to the anti-freezing protection of the refrigeration room due to poor air inlet.

(26) P8-Overcurrent Protection

Explanation of error	Cause: Controller detects AC bus current exceeding the set protection value, then limits and reduces the frequency. Inspection path: system blockage → grid voltage→ outdoor unit controller
Tools required for inspection	Multimeter, pressure gauge
Frequent problematic part	Grid voltage and outdoor unit controller
Inspection procedure and key points	1. Use a multimeter to detect and check if the bus voltage is too low, causing the overcurrent protection.2. Use a pressure gauge to check whether the pressure of the system exceeds the standard. If the pressure exceeds the standard, it may lead to dirty blockage of the system.3. Replace the outdoor unit controller and if the unit returns to normal, it is the problem of the controller.
Special attention	Generally, such protection occurs at high load, but should not occur at low load and low temperature, and the priority of this protection is after the protection of refrigeration against overload and exhaust.

(27) Function protection prompt of frequency conversion Outdoor Unit machine

Explanation of error	Cause: In the regular running of the air conditioner, for some nonfaulted status, it may need the compressor to shut down or limit or lower the frequency so as to protect the normal operating of the entire cooling system (eg. defrosting, slight undercooling, over pressure, overcurrent, etc.). These problems are not considered as errors and would not be reflected in the Indoor Unit machine, however as to make sure the maintenance personnel is familiar with the running status of the air conditioner, three indicator lights are used on the Outdoor Unit main PCB for reference of the maintenance personnel.Including: over current protection, cooling overload protection, indoor heating high temperature protection, indoor cooling freezing protection, over pressure and under pressure protection.
Tools required for inspection	Multimeter.
Frequent problematic part	Regular protection, system blockage, power supply not as usual, resistance value of sensor drifts or is used wrong.
Inspection procedure and key points	Defrosting: with a defrosting signal, meaning the air conditioner is under defrosting procedure and it is normal, but if there is frequent defrosting, it shall be specifically noted if heat exchange of the Outdoor Unit unit is faulted, if the motor revolving speed is low and if the resistance value of the coil sensor is drifted or the temperature is inaccurately measured or it is damaged.Over current protection: it is more possible to appear under high temperature cooling status and the over current of compressor is usually reflected by over high load of the compressor. It is normal if such protection appears under a very high temperature cooling status but not under low temperature low load status.Cooling overload protection: it is more possible when the frequency conversion machine is under a high temperature cooling status. When the outdoor coil sensor senses the temperature is too high, as to prevent the compressor from overload, it would possibly lower the frequency and it is normal for the protection under the high temperature cooling status.Indoor high temperature heating protection: it is more possible when the frequency conversion machine is under a high temperature heating status. When the indoor coil sensor senses the temperature is too high, as to prevent the compressor from overload, it would possibly lower the frequency and it is normal for the protection in a warm room.Indoor cooling freezing protection: it is more possible to appear under a low temperature cooling status. When the indoor coil sensor senses the temperature is too low, as to prevent the heat exchanger of the Indoor Unit machine from frosting, it would possibly lower the frequency and it is normal for the protection in a low temperature room.6. Over or under pressure protection: this protection is a pilot protection for the "over or under pressure error". When the power pressure is too high or too low but not so high or so low to reach limit for shutting down (within 165V-265V), it would limit and lower the frequency first to reduce the air conditioner's needs for the power to keep teh air conditioner running. This protection is for the adaption to a unstable power environment and when there is such protection prompt, it usually means it is possible for "OVP and UVP error" and the maintenance personnel shall especially note.7. Cooling overload protection, indoor high temperature heating protection and indoor coolign freezing protection are also possible related to the drift of the resistance value of the sensor.

(28) Troubleshooting Guide on Category-L Failures (Subdivided Failures)

Category-L failures are actually the subdivided failures of F1. For the convenience of fast troubleshooting in the after-sales service, the actual troubleshooting methods are consistent with F1.

No.	Failure Code	Failure Name	Primary Troubleshooting Parts
1	L0	DC Over/Under-voltage Failure	Outdoor unit controller / power grid
2 L1		Overcurrent Protection on Phase Current of Compressor	Outdoor unit controller / power grid / compressor / compressor wire
3 L2	Out-of Step Failure of Compressor		Outdoor unit controller / power grid / compressor / system pressure
4 L3	Phase Failure of Compressor		Outdoor unit controller / power grid / compressor / compressor wire
5 L4		Driver Module IPM Failure of Compressor	Outdoor unit controller / power grid / compressor
6 L5	PFC Overcurrent Hardware Protection		Outdoor unit controller / power grid
7 L6	PFC Overcurrent Software Protection		Outdoor unit controller / power grid
8 L7		AD Abnormal Protection in Current Detection	Outdoor unit controller
9 L8	Shunt Resistance Imbalance Failure		Outdoor unit controller
10 L9	IPM Temperature Sensor Failure		Outdoor unit controller
11 LA	Compressor Startup Failure		Outdoor unit controller / power grid / compressor / compressor wire
12 LC		AD Abnormal Protection in PFC Current Detection	Outdoor unit controller

9-2 Common Parameters

1. Display error code of indoor unit: Frequency conversion air conditioners only involve E1, E2, E3 and E4

No.	Error Code	Error Name	Probable Trouble Location
1	E1	Internal room temperature sensor error	Internal room temperature sensor, main internal control panel
2	E2	External coil sensor error	External coil sensor error, main external control panel
3	E3	Internal coil sensor error	Internal coil sensor error, main internal control panel
4	E4	Indoor fan error	Mechanical jam of internal fan blade, internal fan, main internal control panel
5	E5(5E)	Indoor and outdoor unit communication error	Bridge cable, main internal control panel, main external control panel, module pane
6	F0	Outdoor DC fan error	Mechanical jam of external fan, external DC fan, main external control panel
7	F1	Module protection error	Power voltage, compressor cable, reactor, module panel, main external control pane, compressor
8	F2	PFC protection error	Power voltage, reactor, module panel, ma external control panel
9	F3	Compressor out-of-step error	System pressure, compressor cable, module panel, main external control pane, compressor
10	F4	Exhaust air sensor error	Exhaust air sensor, main external control panel
11	F5	Compressor cap sensor error	System pressure, compressor cap sensor (protection switch), main external control panel
12	F6	External room temperature sensor error	External room temperature sensor, main external control panel
13	F7	OVP or UVP error	Power voltage, reactor, module panel, ma external control panel
14	F8	Main external control panel and module panel communication error	Connection wire of module and main control data, module panel, main external control panel
15	F9	Outdoor EE error	Main external control panel
16	FA	Recirculated sensor error	Recirculated sensor, four-way valve, main external control panel

2. Display error code of outdoor unit's indicator lights:

Display by the 3 LED indicator lights on the control panel of the outdoor unit:

○ for off; ● for ⚠; for flashing.

No.	LED1	LED2	LED3	Error Name	Probable Trouble Location
1	○	○	○	Normal (outdoor unit standby)	Normal, all three lights off for standby status.
2	★	★	★	Normal (compressor running)	Normal, all three lights flash while compressor running.
3	●	●	●	Forced service (test mode)	Normal
4	★	★	●	Module protection error	Power voltage, compressor cable, reactor, module panel, main external control panel, compressor.
5	★	★	○	PFC protection error	Power voltage, reactor, module panel, main external control panel.
6	★	●	★	Compressor out-of-step error	Power voltage, compressor cable, module panel, main external control panel, compressor.
7	★	○	★	Exhaust air sensor error	System pressure, exhaust air sensor, main external control panel.
8	●	★	★	External coil sensor error	External coil sensor, main external control panel.
9	○	★	★	External room temperature sensor error	External room temperature sensor, main external control panel.
10	★	●	●	Indoor and outdoor unit communication error	Connection wire, main internal control panel, main external control panel, EE reverse connection, module panel.
11	★	●	○	Main external control panel and module panel communication error	Connection wire of module and main control data, module panel, main external control panel
12	★	○	●	Outdoor EE error	Main external control panel
13	★	○	○	Outdoor DC fan error	Mechanical jam of external fan, external DC fan, main external control panel.
14	●	★	●	Internal room temperature sensor error	Internal room temperature sensor, main internal control panel.
15	●	★	○	Internal coil sensor error	Internal coil sensor, main internal control panel.
16	○	★	●	Indoor fan error	Mechanical jam of fan, internal fan, main internal control panel.
17	○	★	○	Refer to tooling display for other errors	Entire set of external controller.
18	●	●	★	Compressor cap sensor error	System pressure, compressor cap sensor (protection switch), main external control panel.
19	●	○	★	Recirculated sensor error	Recirculated sensor, four-way valve switc error, main external control panel.
20	○	●	★	※ Compressor overpower protection	Power voltage, module panel, main external control panel.
21	○	○	★	※ Over current protection	Power voltage, system pressure, module panel, main external control panel.
22	●	●	○	Exhaust sensor error	System pressure, exhaust sensor, main external control panel.
23	●	○	●	※ Cooling overload protection	Condenser, external fan, capillary, externa coil sensor, main external control panel.
24	○	●	●	※ Indoor high temperature heating protection	Evaporator, internal fan, thin unit connection pipe, internal coil sensor, main internal control panel.
25	●	○	○	※ Indoor cooling freezing protection	Evaporator, internal fan, capillary, interna coil sensor, main internal control panel.
26	○	●	○	Compressor shell temperature protection	Same as "18 Compressor cap sensor erro
27	○	○	●	※ OVP or UPV error	Power voltage, reactor, module panel, ma external control panel.

9-3 Troubleshooting for Normal Malfunction

The Foremost Inspecting Items

① The input voltage must be within +10% tolerance of the rated Voltage. If it is not the case, the air-conditioner will probably not work normally.
② Check the connecting cord between indoor unit and outdoor unit to see if it is properly connected. The connecting must be done according to the wiring diagram,

please also notice that even different models may have the connecting cord of the same specification. Please check if the marks at the connecting terminal and the marks on the cord can match, otherwise, the air-conditioner will not work normally.

③ If the following phenomena are found, the problem is not from the air-conditioner itself.

NO.	Problems	Causes
1	The motor is heard operating but the air-conditioner does not work when the indoor unit is powered	Since the air-conditioner is powered of it will come to working condition as long as you press the ON/OFF button the remote control and the Signal is received.
2	The compressor stops running but the indoor fan motor keeps working when it is at cooling me with the indoor temperature higher than set temperature.	If you turn off the air-conditioner and restart it immediately, it will return to normal in 3 minutes, after that, the air-conditioner will automatically adjust the indoor fan speed to what you set.
3	The compressor works discontinuously at dehumidifying mode.	The air-conditioner will automatically control the working of the compressor according to the inside temperature.
4	The air-conditioner does not work while the LED display is on.	The TIMER is set with the A/C; it was be in hold on condition. If the TIME setting is cancelled, the air-conditioner will return to normal working condition
5	The compressor works discontinuously at cooling and dehumidifying mode, and the indoor fan motor slows down.	The compressor stops internally or the fan motor slows down to prevent the indoor heat exchanger from being frozen.

➢ Fault Diagnosis by Symptom

①No Power Display

(1) Items

a) Check if the input voltage is correct?
b) Check if the AC power supply connecting is correct?
c) Check if the output voltage of the manostat L7805 (IC2) is correct?

(2) Trouble shooting procedure

graph TD
    A["Pull out the power plug and replug it after some 5 seconds"] --> B["Does the buzzer ring?"]
    B -->|NO| C["Check the connection between power supply cord and the connecting terminal, then checking the fuse"]
    B -->|YES| D["Does the air-conditioner start operating after pressing the ON/OFF button of the remote control?"]
    D -->|YES| E["normal"]
    D -->|NO| F["Has the signal been sent?"]
    F -->|NO| G["Refer to the trouble-shooting of the remote control"]
    F -->|YES| H["Is the LED lighten?"]
    H -->|NO| I["Is the transformer OK?"]
    H -->|YES| J["Is the DC voltage on the PCB board OK?"]
    J -->|NO| K["Replace the PCB board"]
    J -->|YES| L["Are the voltage of micro-controller #8(compressor), #2(4-way valve) and #6(outdoor fan motor) normal? Is the voltage (5VDC) of the #15 (indoor fan motor)normal?"]
    L -->|NO| M["Is the port voltage(0VDC) of the#3 Normal? Is the port voltage(5VDC)of the#7 Normal?"]
    L -->|YES| N["Are the voltage(IC4)of RY1 (compressor), RY3(indoor fan motor) normal?"]
    N -->|YES| O["Check the connection of the compressor, Indoor fan motor and Outdoor fan motor"]
    N -->|NO| P["Replace The Ry1, RY3,and IC4"]
    O -->|NO| Q["Is the output voltage of the IC2 normal?"]
    P -->|NO| Q
    Q -->|YES| R["Check PCB board Replace the main PCB board"]
    Q -->|NO| S["Replace IC2"]
    R --> T["Are the port-voltage of the #4 and #5 normal?"]
    T -->|NO| U["Replace the Micro-controller"]
    T -->|YES| V["Replace the buzzer"]
    U --> W["Does it run normally?"]
    W -->|NO| X["OK"]

②The Indoor Fan Motor Does Not Work

(1) Items

a) Check if the indoor fan motor is connected correctly to the connector (CN8)?
b) Check if the AC input voltage is correct?
c) Check if the IC of indoor fan motor is connected correctly to the connector (CN2)?
d) Check if the capacity of indoor fan motor is connected correctly to the connector (CN8)?

(2) Trouble shooting procedure

graph TD
    A["Pull out the power plug and replug It after some 5seconds"] -->|YES| B["Is the LED lighten?"]
    B -->|NO| C["Refer to the procedure of proceeding page"]
    B -->|YES| D["Is the controller output normal?"]
    D -->|NO| E["The micro-controller chip fails"]
    D -->|YES| F["Is the fan motor voltage satisfied?"]
    F -->|NO| G["PCB fails"]
    F -->|YES| H["The probe position\nPCB Cn8 status\n#2 and #3 The motor running AC 134V-160V"]
    G --> I["Replace PCB"]
    F -->|YES| J["The capacity of the fan motor does not connect CN8"]
    F -->|NO| K["Fan motor capacitor fails"]
    K -->|YES| L["Replace FAC"]
    K -->|NO| M["Fan motor fails"]
    M -->|YES| N["Replace the indoor Fan motor"]

③The Outdoor Unit Does Not Work

(1) Items

a) Check if the input voltage is correct?
b) Check if the wire connection of the outdoor connecting terminal is correct?

(2) Trouble shooting procedure

graph TD
    A["Pull out the power plug and replug it after some 5 seconds"] --> B{Is the indoor controller normal?}
    B -->|NO| C["Check refer to the "9-3-1" part"]
    B -->|YES| D{Is the output voltage of relay normal? Is the wire connection on the terminal correct?}
    D -->|NO| E["The relay fails"]
    D -->|YES| F["The outdoor unit is abnormal"]
    E --> G["Replace the relay"]

④The Step Motor Does Not Work

(1) Items

a) Check if the input voltage is correct?
b) Check if the step motor controlling the up-down movement firmly connected to Cn2?
(2) Trouble shooting procedure

graph TD
    A["Pull out the power plug and replug it after some 5seconds"] --> B["Start the air-conditioner with remote control"]
    B --> C{Is the LED on the display board lighten?}
    C -->|NO| D["Confirm the procedure of the "5-2" part"]
    C -->|YES| E{Does the louver move up and down after pressing the SWING button on the remote control?}
    E -->|YES| F["Normal"]
    E -->|NO| G{Is there any voltage change between the chips #23,#22,#20,#19}
    G -->|NO| H["The chip IC1 fails"]
    G -->|YES| I{Is there any voltage change between 10~13 of the chip ULN2003AFW}
    I -->|NO| J["Drive chip IC4 (ULN2003AFW)"]
    I -->|YES| K["The step motor fails"]

⑤Heating Mode Can Work, But No Hot Air Blow

(1) Check if the set temperature is lower than the indoor temperature?
(2) Check if the indoor PCB is connected to the terminal correctly?

graph TD
    A["Restarted in some 5 minutes after the above problems solved"] -->|YES| B["Normal"]
    A -->|NO| C["Is the chip IC1#7 voltage DC5.0V?"]
    C -->|NO| D["The chip IC1 fails"]
    C -->|YES| E["Is the chip IC1#2 voltage high?"]
    D --> F["The chip IC3 fails"]
    E -->|NO| G["Is the voltage at the connecting point of chip IC4(ULN2003A)low?"]
    G -->|NO| H["The chip IC4 (ULN2003A) fails"]
    G -->|YES| I["Is relay output normal?"]
    H --> J["Replace relay(RY3)"]
    I -->|YES| K["The interconnection cord or the 4-way valve is abnormal"]
    K -->|YES| L["Check the interconnection cord or replace the 4-way valve"]
    J --> M["Replace PCB"]

⑥ Remote Control Can Not Work

Trouble shooting procedure

graph TD
    A["Take out the batteries and reinsert them after 5 seconds"] --> B{Is the LED lighten?}
    B -->|YES| C{Is there music when the ON/OFF button was pressed.}
    B -->|NO| D{Check refer to the "5-2" part}
    C -->|YES| E{Normal}
    C -->|NO| F{Is there voltage of batteries lower than 2.5V?}
    F -->|YES| G{Replace batteries}
    F -->|NO| H{Is the LCD display normal?}
    H -->|YES| I{Is there signal when the ON/OFF button was pressed.}
    H -->|NO| J{LCD fails}
    I -->|YES| K{Is there any change on the voltage of chip IC1?}
    I -->|NO| L{Replace buttons}
    K -->|YES| M{Is there any change on the voltage Q1?}
    K -->|NO| N{The chip fails}
    M -->|YES| O{Is there any change on the voltage LED?}
    M -->|NO| P{Replace audition}
    N -->|NO| Q{Emission tube fails}
    O -->|YES| R["The receiver fails"]
    O -->|NO| S["End"]

10. Main Protection

10-1 Delay at restart of compressor

Whether the first start is delayed or not depends on whether there is a power failure memory. If there is power-down memory, the first start is started in 3 minutes; no power-down memory, the delay time is about 10S-20S (internal air guide door reset time).

10-2 Temperature protection of compressor

If the temperature of the compressor is higher than 115^ the unit will stop. When the temperature is reduced to 100^ the compressor will restart following a 3 minute delay.

10-3 Abnormal Fan Speed control

When the Indoor Fan Speed reduces to 100 RPM for an extended period, the system will shut down and the LED will display the failure on the indoor unit.

10-4 Indoor fan delayed open function

When the unit starts up in cooling mode, the louver will activate immediately and the indoor fan will start 10 seconds later. When in heating mode, the indoor fan will be in delayed start mode until the indoor coil reaches temperature of 40^ .

10-5 Indoor fan delayed open function

If the outdoor ambient temperature is below 3^ C when the system starts after extended shutdown or if the compressor has been idle for 3 hours, the compressor winding heater will be activated.

10-6 Preheating mode

A weak current will flow through the compressor windings to provide a warm up prior to the compressor starting.

10-7 Preheating release condition

The preheating function will stop when outdoor ambient temperature increases above 5^ C or at the commencement of the compressor run time.

10-8 High discharge temperature; compressor frequency control

As the compressor discharge temperature increases, the frequency will be controlled as per the following parameters.

- If the compressor discharge temperature exceeds 115^ for more than 5 seconds, the compressor will cut out.

11. Motor winding and Sensor Resistance Tables

11-1 Compressor Motor - Winding Resistance

To measure the resistance of each winding do the following

1. Disconnect the sensor from the PCB
2. Measure the resistance value of each winding by using the multi-meter.
3. Confirm value against that in the resistance table below

	Resistance Values at 20°C
Model	HSNRQ25B/35B	HSNRQ50B	HSNRQ70B	HSNRQ80B
Compressor	GSD088RKQA6JV6B	KSM135D23UFZ	GTD186UKQA9LT6	KTM240D57UKP
Resistance	1.867Ω ±7%	1.84Ω ±7%	1.354Ω±7%	0.62Ω±7%

11-2 IPM Continuity Check

Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Then check leak current between C and E of IGBT by using a tester.

The (+) and (-) tester lead wires in the table must be reversed when using a digital tester.

Needle-type tester		Normal resistance value
(-)	(+)
P	N	∞(several MΩ)
	U
	V
	W

Needle-type tester		Normal resistance value
(-)	(+)
U	N	(several MΩ)
V
W

Values in ( ) are for digital tester.
Values in ( ) are for digital tester.

11-3 Sensor Resistance - Temperature Charts

• Room temperature. Sensor (T1).
• Evaporator coil temperature sensor (T2).
- Condenser coil temperature sensor (T3).
• Outdoor ambient temperature sensor (T4).
• Compressor discharge temperature sensor (T5)

This table is applicable for T1, T2, T3 and T4 sensors.

Temperature (°C)	5	10	15	20	25	30	40	50	60
Resistance Value (KΩ)	26.9	20.7	16.1	12.6	10	8	5.2	3.5	2.4

This table is applicable for T5 sensor.

Temperature (°C)	5	15	25	35	60	70	80	90	100
Resistance Value (KΩ)	141.6	88	56.1	36.6	13.8	9.7	6.9	5	3.7

Temperature Sensor Checking

1 Disconnect the sensor from the PCB
2 Measure the resistance value with a tester

Tester

Appendix

AUX Common Sensor R-T Analysis Table

Temperature sensor R-T analysis table (15K)
Sensor standard resistance: 15KΩ±3% B:B(25/50)=3950K±2% Reference temperature: 25 (°C)
MCU_A/D exchange ±3LSB (at10bit)
Scrics (sampling) resistor: 10 (KΩ) ±1% (except disk sensor)
Single chip (A/D reference voltage) supply voltage: 5V
Temp	Resistance (KΩ)			MCU Input voltage (V)			A/D Exchange value
(°C)	MIN	TYP	MAX	MIN	TYP	MAX	MIN	TYP	MAX
-25.0	183.4	199.1	216.0	0.219	0.239	0.261	42	49	56
-24.0	172.8	187.4	203.0	0.233	0.253	0.276	45	52	60
-23.0	162.9	176.5	190.9	0.247	0.268	0.292	47	55	63
-22.0	153.7	166.2	179.6	0.261	0.284	0.308	50	58	66
-21.0	145.0	156.7	169.1	0.277	0.300	0.326	54	61	70
-20.0	136.9	147.7	159.2	0.293	0.317	0.344	57	65	73
-19.0	129.2	139.3	150.0	0.310	0.335	0.363	60	69	77
-18.0	122.1	131.4	141.4	0.327	0.354	0.382	64	72	81
-17.0	115.4	124.1	133.3	0.346	0.373	0.402	68	76	85
-16.0	109.1	117.2	125.7	0.365	0.393	0.424	72	81	90
-15.0	103.1	110.7	118.6	0.385	0.414	0.446	76	85	94
-14.0	97.59	104.6	112.0	0.406	0.436	0.469	80	89	99
-13.0	92.37	98.88	105.8	0.428	0.459	0.493	85	94	104
-12.0	87.45	93.52	99.92	0.451	0.483	0.518	89	99	109
-11.0	82.83	88.48	94.43	0.474	0.508	0.543	94	104	114
-10.0	78.48	83.74	89.27	0.499	0.533	0.570	99	109	120
-9.0	74.39	79.29	84.43	0.525	0.560	0.598	104	115	125
-8.0	70.54	75.10	79.88	0.551	0.588	0.626	110	120	131
-7.0	66.90	71.15	75.61	0.579	0.616	0.656	116	126	137
-6.0	63.48	67.44	71.59	0.607	0.646	0.686	121	132	144
-5.0	60.25	63.95	67.80	0.637	0.676	0.718	127	138	150
-4.0	57.21	60.65	64.24	0.668	0.708	0.750	134	145	157
-3.0	54.34	57.55	60.89	0.699	0.740	0.784	140	152	163
-2.0	51.63	54.62	57.73	0.732	0.774	0.818	147	158	171
-1.0	49.07	51.86	54.76	0.766	0.808	0.853	154	166	178
0.0	46.65	49.25	51.95	0.800	0.844	0.890	161	173	185
1.0	44.37	46.79	49.31	0.836	0.880	0.927	168	180	193
2.0	42.21	44.47	46.81	0.873	0.918	0.965	176	188	201
3.0	40.17	42.28	44.46	0.911	0.956	1.005	183	196	209
4.0	38.24	40.20	42.24	0.949	0.996	1.045	191	204	217
5.0	36.41	38.25	40.14	0.989	1.036	1.086	200	212	225
6.0	34.68	36.39	38.16	1.030	1.078	1.128	208	221	234
7.0	33.05	34.64	36.29	1.072	1.120	1.170	216	229	243
8.0	31.50	32.99	34.52	1.114	1.163	1.214	225	238	252
9.0	30.03	31.42	32.84	1.158	1.207	1.258	234	247	261
10.0	28.64	29.94	31.26	1.203	1.252	1.304	243	256	270
11.0	27.32	28.53	29.77	1.248	1.298	1.350	253	266	279
12.0	26.07	27.20	28.35	1.294	1.344	1.396	262	275	289
13.0	24.89	25.94	27.01	1.341	1.391	1.443	272	285	299
14.0	23.76	24.74	25.74	1.389	1.439	1.491	281	295	308
15.0	22.69	23.61	24.54	1.437	1.488	1.540	291	305	318
16.0	21.68	22.53	23.40	1.486	1.537	1.589	301	315	328
17.0	20.72	21.51	22.32	1.536	1.587	1.639	312	325	339
18.0	19.80	20.55	21.30	1.587	1.637	1.689	322	335	349
19.0	18.94	19.63	20.33	1.637	1.687	1.739	332	346	359
20.0	18.11	18.75	19.40	1.689	1.739	1.790	343	356	370
21.0	17.33	17.93	18.53	1.741	1.790	1.841	354	367	380
22.0	16.58	17.14	17.70	1.793	1.842	1.893	364	377	391
23.0	15.87	16.39	16.91	1.846	1.895	1.945	375	388	401
24.0	15.19	15.68	16.16	1.899	1.947	1.997	386	399	412
25.0	14.55	15.00	15.45	1.953	2.000	2.049	397	410	423
26.0	13.91	14.36	14.80	2.004	2.053	2.103	407	420	434
27.0	13.31	13.74	14.18	2.056	2.106	2.157	418	431	445
28.0	12.73	13.16	13.59	2.107	2.159	2.212	429	442	456
29.0	12.18	12.60	13.03	2.159	2.212	2.267	439	453	467
30.0	11.66	12.08	12.49	2.211	2.264	2.321	450	464	478
31.0	11.17	11.57	11.98	2.262	2.318	2.374	460	475	489
32.0	10.69	11.09	11.49	2.314	2.371	2.429	471	486	500
33.0	10.24	10.63	11.03	2.365	2.424	2.483	481	496	511
34.0	9.816	10.20	10.59	2.416	2.475	2.536	492	507	522
35.0	9.408	9.782	10.16	2.468	2.528	2.589	502	518	533
36.0	9.019	9.385	9.758	2.518	2.579	2.641	513	528	544
37.0	8.648	9.007	9.372	2.568	2.631	2.694	523	539	555
38.0	8.294	8.645	9.003	2.619	2.682	2.745	533	549	565
39.0	7.957	8.300	8.651	2.668	2.732	2.797	543	560	576
40.0	7.635	7.971	8.315	2.718	2.782	2.847	554	570	586
41.0	7.328	7.657	7.993	2.766	2.832	2.898	564	580	596
42.0	7.034	7.356	7.686	2.815	2.881	2.947	573	590	607
43.0	6.755	7.069	7.391	2.863	2.929	2.996	583	600	617
44.0	6.487	6.795	7.110	2.910	2.977	3.045	593	610	627
45.0	6.232	6.532	6.841	2.957	3.024	3.092	603	619	636
46.0	5.988	6.282	6.584	3.003	3.071	3.139	612	629	646
47.0	5.755	6.042	6.337	3.049	3.117	3.185	621	638	655
48.0	5.532	5.812	6.101	3.094	3.162	3.231	631	648	665
49.0	5.319	5.593	5.875	3.138	3.207	3.275	640	657	674
50.0	5.115	5.382	5.659	3.181	3.251	3.319	649	666	683
51.0	4.919	5.180	5.450	3.225	3.294	3.362	657	675	692
52.0	4.732	4.987	5.251	3.267	3.336	3.405	666	683	700
53.0	4.553	4.802	5.060	3.309	3.378	3.446	675	692	709
54.0	4.382	4.625	4.877	3.350	3.419	3.487	683	700	717
55.0	4.219	4.457	4.703	3.390	3.459	3.527	691	708	725
56.0	4.061	4.293	4.534	3.429	3.498	3.566	699	716	733
57.0	3.911	4.137	4.373	3.468	3.537	3.604	707	724	741
58.0	3.767	3.988	4.218	3.506	3.574	3.642	715	732	749
59.0	3.630	3.845	4.070	3.543	3.611	3.678	723	740	756
60.0	3.498	3.708	3.927	3.580	3.648	3.714	730	747	764
61.0	3.371	3.577	3.791	3.616	3.683	3.749	737	754	771
62.0	3.250	3.450	3.660	3.650	3.717	3.783	745	761	778
63.0	3.134	3.329	3.534	3.685	3.751	3.816	752	768	785
64.0	3.022	3.213	3.413	3.718	3.784	3.848	758	775	791
65.0	2.915	3.102	3.297	3.751	3.816	3.880	765	782	798
66.0	2.813	2.995	3.185	3.783	3.848	3.911	772	788	804
67.0	2.714	2.892	3.078	3.814	3.878	3.941	778	794	810
68.0	2.620	2.793	2.975	3.845	3.908	3.970	784	800	816
69.0	2.529	2.698	2.876	3.874	3.938	3.999	790	806	822
70.0	2.442	2.607	2.781	3.903	3.966	4.026	796	812	828
71.0	2.358	2.519	2.689	3.932	3.994	4.054	802	818	833
72.0	2.278	2.435	2.601	3.960	4.021	4.080	808	823	839
73.0	2.200	2.354	2.516	3.987	4.047	4.106	813	829	844
74.0	2.126	2.276	2.435	4.013	4.073	4.131	819	834	849
75.0	2.055	2.201	2.356	4.039	4.098	4.155	824	839	854
76.0	1.986	2.129	2.280	4.064	4.122	4.178	829	844	859
77.0	1.920	2.060	2.208	4.088	4.146	4.201	834	849	863
78.0	1.857	1.993	2.138	4.112	4.169	4.223	839	854	868
79.0	1.796	1.929	2.070	4.135	4.191	4.245	844	858	872
80.0	1.737	1.867	2.005	4.158	4.213	4.266	849	863	877
81.0	1.681	1.808	1.942	4.180	4.234	4.287	853	867	881
82.0	1.626	1.750	1.882	4.201	4.255	4.307	857	871	885
83.0	1.574	1.695	1.824	4.222	4.275	4.326	862	876	889
84.0	1.524	1.642	1.767	4.243	4.295	4.344	866	880	893
85.0	1.475	1.590	1.713	4.262	4.314	4.363	870	884	897
86.0	1.428	1.541	1.661	4.282	4.332	4.381	874	887	900
87.0	1.383	1.493	1.611	4.300	4.350	4.398	878	891	904
88.0	1.340	1.447	1.562	4.319	4.368	4.414	881	895	907
89.0	1.298	1.403	1.515	4.336	4.385	4.431	885	898	910
90.0	1.258	1.360	1.470	4.354	4.401	4.446	889	901	914
91.0	1.219	1.319	1.426	4.370	4.417	4.462	892	905	917
92.0	1.181	1.279	1.384	4.387	4.433	4.477	895	908	920
93.0	1.145	1.241	1.343	4.403	4.448	4.491	899	911	923
94.0	1.110	1.204	1.304	4.418	4.463	4.505	902	914	926
95.0	1.077	1.168	1.266	4.433	4.477	4.518	905	917	928
96.0	1.044	1.134	1.229	4.448	4.491	4.532	908	920	931
97.0	1.013	1.100	1.194	4.462	4.505	4.544	911	923	934
98.0	0.9826	1.068	1.160	4.476	4.518	4.557	914	925	936
99.0	0.9535	1.037	1.127	4.489	4.530	4.569	916	928	939
100.0	0.9252	1.007	1.095	4.502	4.543	4.580	919	930	941
101.0	0.8981	0.9778	1.064	4.515	4.555	4.592	922	933	943
102.0	0.8717	0.9497	1.034	4.527	4.566	4.603	924	935	946
103.0	0.8463	0.9225	1.005	4.539	4.578	4.613	927	938	948
104.0	0.8218	0.8963	0.9767	4.551	4.589	4.624	929	940	950
105.0	0.7981	0.8710	0.9497	4.562	4.599	4.634	931	942	952
Temperature sensor R-T analysis table (20K)
Sensor standard resistance: 20KΩ±3% B:B(25/50)=3950K±2% reference temperature: 25 (°C)
MCU_A/D exchange ±3LSB (at10bit)
Series (sampling) resistor: 10 (KΩ) ±1%
Single chip (A/D reference voltage) supply voltageV
Temp	Resistance (KΩ)			MCU Input voltage (V)			A/D Exchange value
(°C)	MIN	TYP	MAX	MIN	TYP	MAX	MIN	TYP	MAX
-30	318.3	347.0	377.6	0.128	0.140	0.154	23	29	34
-29	299.6	326.2	354.6	0.136	0.149	0.163	25	30	36
-28	282.2	306.9	333.4	0.144	0.158	0.173	27	32	38
-27	265.9	289.0	313.5	0.153	0.167	0.183	28	34	40
-26	250.8	272.2	295.1	0.162	0.177	0.194	30	36	43
-25	236.6	256.5	277.9	0.172	0.188	0.205	32	38	45
-24	223.3	241.9	261.8	0.182	0.198	0.216	34	41	47
-23	210.9	228.2	246.7	0.193	0.210	0.229	37	43	50
-22	199.2	215.3	232.6	0.204	0.222	0.241	39	45	52
-21	188.3	203.3	219.4	0.216	0.234	0.255	41	48	55
-20	178.0	192.0	207.0	0.228	0.248	0.268	44	51	58
-19	168.3	181.4	195.4	0.241	0.261	0.283	46	54	61
-18	159.2	171.4	184.4	0.255	0.276	0.298	49	56	64
-17	150.7	162.0	174.2	0.269	0.291	0.314	52	60	67
-16	142.6	153.2	164.6	0.284	0.306	0.331	55	63	71
-15	135.0	144.9	155.5	0.299	0.323	0.348	58	66	74
-14	127.9	137.1	147.0	0.315	0.340	0.366	62	70	78
-13	121.2	129.8	138.9	0.333	0.358	0.385	65	73	82
-12	114.9	122.9	131.4	0.350	0.376	0.404	69	77	86
-11	108.9	116.4	124.3	0.369	0.396	0.424	73	81	90
-10	103.3	110.3	117.7	0.388	0.416	0.445	76	85	94
-9	98.00	104.5	111.4	0.408	0.437	0.467	81	89	99
-8	93.01	99.10	105.6	0.429	0.458	0.490	85	94	103
-7	88.29	93.98	100.0	0.450	0.481	0.513	89	98	108
-6	83.84	89.15	94.78	0.473	0.504	0.538	94	103	113
-5	79.63	84.60	89.85	0.496	0.529	0.563	99	108	118
-4	75.67	80.30	85.12	0.521	0.554	0.589	104	113	124
-3	71.91	76.24	80.75	0.546	0.580	0.616	109	119	129
-2	68.37	72.41	76.62	0.572	0.607	0.644	114	124	135
-1	65.02	68.79	72.72	0.599	0.635	0.672	120	130	141
0	61.85	65.37	69.04	0.627	0.663	0.702	125	136	147
1	58.85	62.14	65.56	0.656	0.693	0.732	131	142	153
2	56.01	59.08	62.28	0.686	0.724	0.764	137	148	159
3	53.33	56.20	59.18	0.717	0.755	0.796	144	155	166
4	50.79	53.46	56.25	0.748	0.788	0.829	150	161	173
5	48.38	50.88	53.43	0.782	0.821	0.864	157	168	180
6	46.10	48.43	50.81	0.815	0.856	0.899	164	175	187
7	43.94	46.12	48.34	0.850	0.891	0.934	171	182	194
8	41.90	43.92	45.99	0.886	0.927	0.971	178	190	202
9	39.95	41.85	43.78	0.922	0.964	1.009	186	198	210
10	38.11	39.88	41.68	0.960	1.002	1.047	194	205	218
11	36.37	38.02	39.69	0.998	1.041	1.087	201	213	226
12	34.71	36.25	37.81	1.038	1.081	1.127	209	221	234
13	33.14	34.57	36.03	1.078	1.122	1.168	218	230	242
14	31.65	32.98	34.34	1.119	1.163	1.210	226	238	251
15	30.23	31.47	32.74	1.161	1.206	1.252	235	247	259
16	28.88	30.04	31.22	1.204	1.249	1.295	244	256	268
17	27.61	28.69	29.78	1.248	1.292	1.339	252	265	277
18	26.39	27.40	28.41	1.292	1.337	1.384	262	274	286
19	25.24	26.17	27.12	1.337	1.382	1.429	271	283	296
20	24.14	25.01	25.89	1.383	1.428	1.475	280	293	305
21	23.09	23.90	24.72	1.430	1.475	1.521	290	302	315
22	22.10	22.85	23.61	1.477	1.522	1.568	300	312	324
23	21.16	21.85	22.55	1.525	1.570	1.616	309	321	334
24	20.26	20.90	21.55	1.574	1.618	1.664	319	331	344
25	19.40	20.00	20.60	1.623	1.667	1.712	329	341	354
26	18.55	19.14	19.73	1.670	1.716	1.763	339	351	364
27	17.74	18.32	18.91	1.718	1.765	1.814	349	362	375
28	16.97	17.55	18.12	1.766	1.815	1.866	359	372	385
29	16.24	16.80	17.37	1.815	1.865	1.917	369	382	396
30	15.54	16.10	16.66	1.864	1.916	1.970	379	392	406
31	14.88	15.43	15.98	1.913	1.966	2.022	389	403	417
32	14.25	14.79	15.33	1.962	2.017	2.074	399	413	428
33	13.65	14.18	14.71	2.011	2.068	2.127	409	424	439
34	13.08	13.59	14.12	2.061	2.119	2.179	419	434	449
35	12.53	13.04	13.55	2.111	2.170	2.231	429	444	460
36	12.01	12.51	13.01	2.160	2.221	2.284	439	455	471
37	11.52	12.00	12.50	2.210	2.272	2.336	450	465	481
38	11.05	11.52	12.01	2.260	2.323	2.388	460	476	492
39	10.60	11.06	11.54	2.309	2.374	2.440	470	486	503
40	10.17	10.62	11.09	2.358	2.425	2.492	480	497	513
41	9.757	10.20	10.66	2.408	2.475	2.543	490	507	524
42	9.367	9.803	10.25	2.457	2.525	2.594	500	517	534
43	8.994	9.420	9.856	2.506	2.575	2.645	510	527	545
44	8.638	9.054	9.480	2.554	2.624	2.695	520	537	555
45	8.298	8.705	9.121	2.602	2.673	2.745	530	547	565
46	7.973	8.371	8.778	2.650	2.722	2.794	540	557	575
47	7.663	8.051	8.449	2.698	2.770	2.843	549	567	585
48	7.367	7.745	8.134	2.745	2.818	2.891	559	577	595
49	7.083	7.453	7.832	2.792	2.865	2.939	569	587	605
50	6.812	7.176	7.543	2.838	2.911	2.986	578	596	615
51	6.553	6.905	7.267	2.883	2.958	3.032	588	606	624
52	6.305	6.649	7.002	2.929	3.003	3.078	597	615	633
53	6.068	6.403	6.747	2.974	3.048	3.123	606	624	643
54	5.841	6.168	6.504	3.018	3.093	3.168	615	633	652
55	5.623	5.942	6.270	3.061	3.136	3.212	624	642	661
56	5.415	5.726	6.046	3.104	3.179	3.255	633	651	670
57	5.216	5.519	5.831	3.147	3.222	3.297	641	660	678
58	5.025	5.321	5.625	3.188	3.263	3.339	650	668	687
59	4.842	5.131	5.428	3.229	3.304	3.380	658	677	695
60	4.667	4.948	5.238	3.270	3.345	3.420	667	685	703
61	4.499	4.773	5.055	3.310	3.385	3.459	675	693	711
62	4.338	4.605	4.880	3.349	3.423	3.498	683	701	719
63	4.183	4.444	4.712	3.388	3.462	3.536	691	709	727
64	4.035	4.289	4.551	3.425	3.499	3.573	699	717	735
65	3.893	4.140	4.396	3.463	3.536	3.609	706	724	742
66	3.756	3.998	4.247	3.499	3.572	3.645	714	732	749
67	3.625	3.861	4.103	3.535	3.607	3.679	721	739	757
68	3.500	3.729	3.966	3.570	3.642	3.713	728	746	763
69	3.379	3.603	3.833	3.604	3.676	3.747	735	753	770
70	3.263	3.481	3.706	3.638	3.709	3.779	742	760	777
71	3.152	3.364	3.583	3.671	3.741	3.811	749	766	783
72	3.045	3.252	3.466	3.703	3.773	3.842	755	773	790
73	2.942	3.144	3.352	3.735	3.804	3.872	762	779	796
74	2.843	3.040	3.243	3.766	3.834	3.902	768	785	802
75	2.748	2.940	3.138	3.797	3.864	3.931	775	791	808
76	2.657	2.844	3.037	3.826	3.893	3.959	781	797	814
77	2.569	2.751	2.940	3.855	3.921	3.986	787	803	819
78	2.485	2.662	2.846	3.884	3.949	4.013	792	809	825
79	2.403	2.577	2.756	3.911	3.976	4.039	798	814	830
80	2.325	2.494	2.669	3.938	4.002	4.064	804	820	835
81	2.250	2.415	2.585	3.965	4.027	4.089	809	825	840
82	2.178	2.338	2.504	3.991	4.053	4.113	814	830	845
83	2.108	2.264	2.426	4.016	4.077	4.137	819	835	850
84	2.041	2.193	2.351	4.040	4.101	4.159	824	840	855
85	1.976	2.125	2.279	4.064	4.124	4.182	829	845	859
86	1.914	2.059	2.209	4.088	4.146	4.203	834	849	864
87	1.854	1.995	2.142	4.111	4.168	4.225	839	854	868
88	1.796	1.934	2.077	4.133	4.190	4.245	843	858	872
89	1.740	1.875	2.014	4.155	4.211	4.265	848	862	877
90	1.687	1.818	1.954	4.176	4.231	4.284	852	866	880
91	1.635	1.763	1.895	4.197	4.251	4.303	856	871	884
92	1.585	1.710	1.839	4.217	4.270	4.322	861	874	888
93	1.537	1.659	1.785	4.236	4.289	4.340	865	878	892
94	1.490	1.609	1.732	4.256	4.307	4.357	869	882	895
95	1.446	1.561	1.681	4.274	4.325	4.374	872	886	899
96	1.402	1.515	1.632	4.292	4.342	4.391	876	889	902
97	1.360	1.471	1.585	4.310	4.359	4.407	880	893	905
98	1.320	1.428	1.539	4.327	4.375	4.422	883	896	909
99	1.281	1.386	1.495	4.344	4.391	4.437	887	899	912
100	1.243	1.346	1.452	4.360	4.407	4.452	890	903	915
101	1.207	1.307	1.411	4.376	4.422	4.466	893	906	918
102	1.172	1.270	1.371	4.392	4.437	4.480	896	909	921
103	1.137	1.233	1.332	4.407	4.451	4.494	900	912	923
104	1.104	1.198	1.295	4.422	4.465	4.507	903	914	926
105	1.070	1.164	1.258	4.436	4.479	4.521	906	917	929
Temperature sensor R-T analysis table (50K)
Sensor standard resistance: 50KΩ±2% B:B(25/50)=3950K±2% reference temperature: 25 (°C)
MCU_A/D exchange ±2LSB (at8bit)
Series (sampling) resistor: 5.1 (KΩ) ±1%
Single chip (A/D reference voltage) supply voltage: 5V
Temp	Resistance (KΩ)			MCU Input voltage (V)			A/D Exchange value
(°C)	MIN	TYP	MAX	MIN	TYP	MAX	MIN	TYP	MAX
-20	465.7	486.2	507.3	0.049	0.052	0.055	1	3	5
-19	439.7	458.7	478.3	0.052	0.055	0.058	1	3	5
-18	415.2	432.9	451.2	0.055	0.058	0.061	1	3	5
-17	392.2	408.8	425.8	0.059	0.062	0.065	1	3	5
-16	370.7	386.1	402	0.062	0.065	0.069	1	3	6
-15	350.5	364.8	379.6	0.066	0.069	0.072	1	4	6
-14	331.5	344.9	358.6	0.069	0.073	0.077	2	4	6
-13	313.7	326.2	339	0.073	0.077	0.081	2	4	6
-12	296.9	308.6	320.5	0.078	0.081	0.085	2	4	6
-11	281.2	292	303.2	0.082	0.086	0.090	2	4	7
-10	266.4	276.5	286.9	0.086	0.091	0.095	2	5	7
-9	252.4	261.8	271.5	0.091	0.096	0.100	3	5	7
-8	239.3	248.1	257.1	0.096	0.101	0.105	3	5	7
-7	226.9	235.1	243.6	0.102	0.106	0.111	3	5	8
-6	215.2	222.9	230.8	0.107	0.112	0.117	3	6	8
-5	204.3	211.5	218.8	0.113	0.118	0.123	4	6	8
-4	193.9	200.6	207.5	0.119	0.124	0.129	4	6	9
-3	184.1	190.4	196.8	0.125	0.130	0.136	4	7	9
-2	174.9	180.8	186.8	0.132	0.137	0.143	5	7	9
-1	166.2	171.7	177.3	0.138	0.144	0.150	5	7	10
0	158	163.1	168.4	0.146	0.152	0.158	5	8	10
1	150.2	155	159.9	0.153	0.159	0.166	6	8	10
2	142.9	147.4	152	0.161	0.167	0.174	6	9	11
3	136	140.2	144.5	0.169	0.175	0.182	7	9	11
4	129.4	133.3	137.4	0.177	0.184	0.191	7	9	12
5	123.2	126.9	130.6	0.186	0.193	0.201	8	10	12
6	117.3	120.8	124.3	0.195	0.203	0.210	8	10	13
7	111.8	115	118.3	0.205	0.212	0.220	8	11	13
8	106.5	109.6	112.6	0.215	0.222	0.231	9	11	14
9	101.5	104.4	107.2	0.225	0.233	0.241	10	12	14
10	96.82	99.47	102.2	0.235	0.244	0.253	10	12	15
11	92.34	94.83	97.35	0.247	0.255	0.264	11	13	16
12	88.1	90.43	92.79	0.258	0.267	0.276	11	14	16
13	84.08	86.26	88.47	0.270	0.279	0.289	12	14	17
14	80.26	82.31	84.37	0.282	0.292	0.302	12	15	17
15	76.64	78.55	80.49	0.295	0.305	0.315	13	16	18
16	73.2	74.99	76.8	0.308	0.318	0.329	14	16	19
17	69.93	71.62	73.31	0.322	0.332	0.343	14	17	20
18	66.83	68.41	69.99	0.336	0.347	0.358	15	18	20
19	63.88	65.36	66.85	0.351	0.362	0.373	16	19	21
20	61.08	62.47	63.86	0.366	0.377	0.389	17	19	22
21	58.42	59.72	61.02	0.382	0.393	0.405	18	20	23
22	55.88	57.1	58.32	0.398	0.410	0.422	18	21	24
23	53.47	54.61	55.76	0.415	0.427	0.439	19	22	24
24	51.18	52.25	53.32	0.433	0.445	0.457	20	23	25
25	49	50	51	0.450	0.463	0.476	21	24	26
26	46.88	47.86	48.84	0.468	0.481	0.495	22	25	27
27	44.87	45.82	46.78	0.487	0.501	0.515	23	26	28
28	42.95	43.88	44.82	0.506	0.521	0.535	24	27	29
29	41.12	42.03	42.95	0.526	0.541	0.557	25	28	30
30	39.38	40.27	41.17	0.546	0.562	0.578	26	29	32
31	37.73	38.59	39.47	0.567	0.584	0.601	27	30	33
32	36.15	37	37.85	0.588	0.606	0.624	28	31	34
33	34.64	35.47	36.3	0.611	0.629	0.647	29	32	35
34	33.21	34.02	34.83	0.633	0.652	0.671	30	33	36
35	31.84	32.63	33.42	0.656	0.676	0.696	32	35	38
36	30.54	31.31	32.08	0.680	0.700	0.722	33	36	39
37	29.29	30.04	30.8	0.704	0.726	0.748	34	37	40
38	28.11	28.84	29.58	0.729	0.751	0.774	35	38	42
39	26.97	27.69	28.41	0.755	0.778	0.802	37	40	43
40	25.89	26.59	27.29	0.781	0.805	0.830	38	41	44
41	24.86	25.54	26.22	0.807	0.832	0.858	39	43	46
42	23.87	24.53	25.2	0.835	0.861	0.887	41	44	47
43	22.93	23.57	24.23	0.862	0.889	0.917	42	46	49
44	22.03	22.66	23.29	0.891	0.919	0.948	44	47	51
45	21.17	21.78	22.4	0.920	0.949	0.978	45	49	52
46	20.34	20.94	21.54	0.949	0.979	1.010	47	50	54
47	19.56	20.14	20.73	0.979	1.010	1.042	48	52	55
48	18.8	19.37	19.94	1.010	1.042	1.075	50	53	57
49	18.08	18.63	19.2	1.041	1.075	1.109	51	55	59
50	17.39	17.93	18.48	1.073	1.107	1.143	53	57	61
51	16.73	17.26	17.79	1.105	1.140	1.177	55	58	62
52	16.1	16.61	17.13	1.138	1.175	1.212	56	60	64
53	15.5	15.99	16.5	1.172	1.209	1.247	58	62	66
54	14.92	15.4	15.9	1.205	1.244	1.283	60	64	68
55	14.36	14.83	15.32	1.239	1.279	1.320	61	66	70
56	13.83	14.29	14.76	1.274	1.315	1.357	63	67	71
57	13.32	13.77	14.23	1.309	1.351	1.394	65	69	73
58	12.83	13.27	13.71	1.346	1.388	1.432	67	71	75
59	12.36	12.79	13.22	1.382	1.425	1.471	69	73	77
60	11.91	12.33	12.75	1.418	1.463	1.510	71	75	79
61	11.48	11.89	12.3	1.455	1.501	1.549	73	77	81
62	11.07	11.46	11.87	1.492	1.540	1.588	74	79	83
63	10.67	11.06	11.45	1.530	1.578	1.628	76	81	85
64	10.29	10.67	11.05	1.568	1.617	1.668	78	83	87
65	9.927	10.29	10.66	1.607	1.657	1.708	80	85	89
66	9.577	9.931	10.29	1.646	1.696	1.749	82	87	92
67	9.24	9.585	9.94	1.684	1.736	1.790	84	89	94
68	8.916	9.253	9.599	1.723	1.777	1.831	86	91	96
69	8.605	8.934	9.271	1.763	1.817	1.872	88	93	98
70	8.307	8.627	8.955	1.803	1.858	1.914	90	95	100
71	8.02	8.331	8.652	1.843	1.899	1.955	92	97	102
72	7.744	8.048	8.36	1.883	1.939	1.997	94	99	104
73	7.479	7.775	8.079	1.923	1.981	2.039	96	101	106
74	7.224	7.512	7.809	1.963	2.022	2.081	99	104	109
75	6.979	7.26	7.549	2.004	2.063	2.123	101	106	111
76	6.743	7.017	7.299	2.044	2.104	2.165	103	108	113
77	6.516	6.783	7.059	2.085	2.146	2.208	105	110	115
78	6.298	6.558	6.827	2.126	2.187	2.250	107	112	117
79	6.088	6.342	6.603	2.167	2.229	2.292	109	114	119
80	5.886	6.133	6.388	2.207	2.270	2.334	111	116	121
81	5.691	5.932	6.181	2.248	2.311	2.375	113	118	124
82	5.504	5.739	5.982	2.289	2.353	2.417	115	120	126
83	5.323	5.552	5.789	2.329	2.394	2.459	117	123	128
84	5.149	5.373	5.604	2.370	2.435	2.500	119	125	130
85	4.982	5.2	5.425	2.410	2.476	2.542	121	127	132
86	4.82	5.033	5.253	2.450	2.517	2.583	123	129	134
87	4.665	4.872	5.087	2.491	2.557	2.624	126	131	136
88	4.515	4.717	4.927	2.531	2.598	2.664	128	133	138
89	4.371	4.568	4.772	2.571	2.638	2.705	130	135	140
90	4.232	4.424	4.623	2.610	2.677	2.745	132	137	143
91	4.097	4.285	4.479	2.650	2.717	2.785	134	139	145
92	3.968	4.151	4.341	2.688	2.756	2.824	136	141	147
93	3.843	4.021	4.207	2.727	2.796	2.864	138	143	149
94	3.722	3.897	4.077	2.766	2.834	2.903	140	145	151
95	3.606	3.776	3.952	2.805	2.873	2.941	142	147	153
96	3.494	3.66	3.832	2.843	2.911	2.979	144	149	155
97	3.386	3.548	3.716	2.880	2.949	3.017	145	151	156
98	3.281	3.439	3.603	2.918	2.986	3.054	147	153	158
99	3.181	3.335	3.495	2.955	3.023	3.091	149	155	160
100	3.083	3.233	3.39	2.991	3.060	3.128	151	157	162
101	2.989	3.136	3.288	3.028	3.096	3.164	153	159	164
102	2.898	3.041	3.19	3.064	3.132	3.200	155	160	166
103	2.811	2.95	3.096	3.099	3.168	3.235	157	162	168
104	2.726	2.862	3.004	3.135	3.203	3.270	159	164	169
105	2.644	2.777	2.916	3.169	3.237	3.304	160	166	171
106	2.565	2.695	2.83	3.204	3.271	3.338	162	167	173
107	2.488	2.615	2.748	3.238	3.305	3.372	164	169	175
108	2.415	2.538	2.667	3.272	3.339	3.404	166	171	176
109	2.343	2.464	2.59	3.305	3.371	3.437	167	173	178
110	2.274	2.392	2.515	3.338	3.404	3.469	169	174	180
111	2.207	2.323	2.443	3.370	3.435	3.500	171	176	181
112	2.143	2.255	2.373	3.401	3.467	3.531	172	178	183
113	2.08	2.19	2.305	3.433	3.498	3.562	174	179	184
114	2.02	2.127	2.239	3.464	3.528	3.592	175	181	186
115	1.961	2.066	2.176	3.494	3.558	3.621	177	182	187
116	1.905	2.007	2.114	3.524	3.588	3.650	178	184	189
117	1.85	1.95	2.055	3.554	3.617	3.679	180	185	190
118	1.797	1.895	1.997	3.583	3.645	3.707	181	187	192
119	1.746	1.841	1.941	3.612	3.674	3.734	183	188	193
120	1.696	1.789	1.887	3.640	3.702	3.762	184	190	195
121	1.648	1.739	1.834	3.668	3.729	3.788	186	191	196
122	1.602	1.69	1.784	3.695	3.756	3.814	187	192	197
123	1.556	1.643	1.734	3.722	3.782	3.840	189	194	199
124	1.513	1.598	1.687	3.748	3.807	3.865	190	195	200
125	1.471	1.554	1.641	3.774	3.832	3.889	191	196	201
126	1.43	1.511	1.596	3.799	3.857	3.914	193	197	202
127	1.39	1.469	1.552	3.824	3.882	3.937	194	199	204
128	1.351	1.429	1.51	3.849	3.906	3.961	195	200	205
129	1.314	1.39	1.469	3.873	3.929	3.984	196	201	206
130	1.278	1.352	1.43	3.896	3.952	4.006	197	202	207
131	1.243	1.315	1.391	3.920	3.975	4.028	199	204	208
132	1.209	1.28	1.354	3.943	3.997	4.050	200	205	209
133	1.176	1.245	1.318	3.965	4.019	4.071	201	206	210
134	1.144	1.212	1.283	3.987	4.040	4.091	202	207	211
135	1.113	1.179	1.249	4.008	4.061	4.112	203	208	213
136	1.083	1.148	1.216	4.030	4.081	4.131	204	209	214
137	1.054	1.117	1.184	4.050	4.102	4.151	205	210	215
138	1.026	1.088	1.153	4.070	4.121	4.169	206	211	215
139	0.9986	1.059	1.123	4.090	4.140	4.188	207	212	216
140	0.9721	1.031	1.093	4.110	4.159	4.206	208	213	217
141	0.9463	1.004	1.065	4.129	4.178	4.224	209	214	218
142	0.9213	0.9778	1.037	4.148	4.196	4.241	210	215	219
143	0.897	0.9523	1.011	4.166	4.213	4.258	211	216	220
144	0.8734	0.9275	0.9845	4.184	4.231	4.275	212	217	221
145	0.8505	0.9034	0.9593	4.202	4.248	4.291	213	217	222
146	0.8283	0.8801	0.9347	4.219	4.264	4.307	214	218	223
147	0.8068	0.8574	0.9108	4.236	4.280	4.323	215	219	223
148	0.7858	0.8354	0.8877	4.252	4.296	4.338	216	220	224
149	0.7655	0.814	0.8652	4.269	4.312	4.353	217	221	225
150	0.7458	0.7932	0.8433	4.284	4.327	4.368	217	222	226

Rinnai Australia Pty Ltd

ABN74005138769 | AU45204

100 Atlantic Drive, Keysborough, Victoria 3173

P.O. Box 460, Braeside, Victoria 3195

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*Cost of a local call higher from mobile or public phones.

For further information visit www.rinnai.com.au or email [e-mail]

Rinnai has a Service and Spare Parts network with personnel who are fully trained and equipped to give the best service on your Rinnai appliance. If your appliance requires service, please call our National Help Line.

With our policy of continuous improvement, we reserve the right to change, or discontinue at any time, specifications or designs without notice.