FFMS221CQ2 - Washing machine FRIGIDAIRE - Free user manual and instructions

USER MANUAL FFMS221CQ2 FRIGIDAIRE

Two simple line drawings of a rectangular box and a circular object, both outlined in white (no text or symbols)

Refer to Page 2 for table of contents.

Welcome to the world of simple handling and no worries

Thank you for choosing Frigidaire. This manual contains all of the information required to guarantee your safety and the appropriate use of your air conditioner.

Please read all of the instructions before using the air conditioner and keep this manual for future reference.

We know you will enjoy your new air conditioner and thank you for choosing our product.

We hope you will consider us for future purchases.

Environmental advices

The packaging material used is recyclable. We recommend that you separate plastic, paper and cardboard and give them to recycling companies. If you need to dispose of this appliance in the future, do not throw it away with the rest of your domestic garbage.

Stylized globe illustration of a panda holding the globe, no text or symbols present

Symbol of a trash bin crossed out by two diagonal lines (no text or numbers present)

Attention!!

The air conditioner that you have bought may be slightly different from the one illustrated in this manual. Please refer to the information related to the model you have.

This air conditioner is for domestic use only. It is not recommended for heavy commercial or industrial use.

Contents

1. Welcome....01
2. Environmental advices....01
   03.Contents....02
3. Safety precautions....03
4. Installation:

5.1 Choosing the installation site....04
5.2 Parts list....06
5.3 Indoor unit installation....08
5.4 Outdoor unit installation.... 12
5.5 Refrigerant piping connection....14
5.6 Electrical work....16
5.7 Purging the system....20
5.8 Electrical safety....23
5.9 Gas leak check....23
5.10 Initial operation test....24

Safety precautions

This appliance must be installed by a qualified licensed HVAC technician in accordance with all applicable codes. All electrical connections should be performed by a licensed electrician. Manufacturer's warranty will be voided with failure to comply.

Incorrect Handling cound result in Serious Injury or Death!

1. Do not attempt to install the split air conditioner by yourself.
2. This air conditioner contains no user-serviceable parts. Always call an authorized Electrolux servicer for repairs.
3. When moving the air conditioner, always call an authorized Frigidaire servicer for disconnection and re-installation.
4. Do not insert fingers or place objects into the discharge area in the front of the indoor unit.
5. Do not insert fingers or place objects into the discharge area in the front of the outdoor unit.
6. Do not start or stop the air conditioner by turning off the power at the electrical box.
7. In the event of a malfunction (sparks, burning smell, etc.) immediately power off unit and call an authorized Frigidaire servicer.
8. Do not operate the air conditioner with wet hands.
9. Do not drink any water or condensation that is drained from the air conditioner.

10. Provide occasional ventilation during use. Do not direct airflow at fire places or other heat related sources as this could cause flare ups or make units run excessively.

11. Do not climb on or place objects on the outdoor unit.

12. Do not hang objects off the indoor unit.
13. Do not place objects containing water on the indoor and/or outdoor units.
14. Turn off the air conditioner at the power source when it will not be used for an extended period of time.
15. Periodically check the condition of the outdoor unit's installation base for any damage.
16. Do not apply heavy pressure to the coil fins of the indoor and/or outdoor units.
17. Operate the indoor unit with air filters in place.
18. Do not block or cover the intake grille, discharge area and outlet ports.
19. Ensure that any electrical/electronic equipment is 36" away from the indoor unit and outdoor unit.
20. Do not use or store flammable gases near the indoor and/or outdoor units.

Choosing the installation site

Installation Warnings

1. Carefully read the installation manual before beginning.
2. Follow each step as shown.
3. Observe all local, state and national electric codes. This appliance must be installed by a qualified licensed HVAC technician in accordance with all applicable codes. All electrical connections should be performed by a licensed electrician. Failure to comply will result in a void of the manufacturer's warranty.
4. Pay attention to all safety notices.

Precautions for Installation

Installation at the following sites may cause problems. If you must inevitably install the unit at one of these sites, please consult your local distributor beforehand:

1. Sites with machine oil.
2. Sites with a high concentration of salinity, such as coastal areas.
3. Sites with sulfuric gas, such as hot water springs.
4. Sites with high frequency equipment, such as wireless equipment, welding machines and medical installations.
5. Sites with flammable gases or volatile material.
6. Sites with special environmental conditions.
7. Laundry rooms.

Indoor Unit

1. Install unit where air flow will not be obstructed.
2. The installation location must support the weight of the indoor unit.
3. The site must be easily accessible for maintenance and replacement of the air filter.
4. The installation location must allow for the necessary space around the indoor unit, as shown in the figure 1.1.
5. There should be at least 3 feet (1 meter) between the unit and radio or television devices. It is ideal that the unit be installed at the center of the wall.

6. The indoor unit must be kept away from fire, smoke and flammable gases.

7. We recommend the indoor unit to be installed as high up as possible on the inside wall (minimum of 7 feet high), always leaving a space of at least 6" between the top of the indoor unit and the ceiling.

8. The installation location must allow for the easy removal of the connector pipe and drain hose.
9. The unit must be installed at a location protected from direct sunlight.

More than 6" More than 6" More than 6"

Figure 1.1

Outdoor Unit

1. The outdoor unit must be installed at a convenient site that is not exposed to strong winds. The site should be dry and well ventilated.
2. The site must support the weight of the outdoor unit and allow for vertical installation.
3. The site must be kept away from flammable gases.
4. The site must provide enough space around the unit, as shown in figure 1.2.
5. Children must not be able to access the installation site.

More than 12" More than 8.5" More than 12" More than 78" More than 2" More than 18.5"

Figure 1.2

Part list

NUMBER	PART NAME			QTY.	QTY.(Multi Split)
1	Wall Mounting Bracket			1	-
2	Drain Joint (Heat Pump only)			1	1
3	Self-tapping screws(For Wall mounting Bracket)		capacity ≤ 18000 Btu's	5	-
			capacity ≥ 21400 Btu's	7	-
4	Remote Control			1	-
5	Connecting pipe assembly	Liquid side	1/4"	1	-
		Gas side	3/8" (capacity ≤ 12000 Btu's)
			1/2" (capacity = 18000 Btu's)
			5/8" (capacity ≥ 21400 Btu's)
6	Drainage Plug(Heat Pump only)	Type A		2	2
		Type B		2	2
7	Remote Control Holder			1	-
8	Self-tapping screws (For Remote Control Holder)			2	-
9	Connecting Adaptor			-	1

Simple 3D rendering of a rectangular device with a central slot and top panel (no text or symbols)

Indoor unit

6

2

Technical line drawing of a mechanical component or housing (no text or symbols)

1

3

4

8

7

Illustration of a portable air conditioner unit with ventilation grilles and control panel (no text or symbols)

Outdoor unit

More than 6" Indoor unit More than 6" Air filter More than 6" More than 19-13/16" More than 1' A B C Outdoor unit More than 79-1/5" 4 8 7 6 2 1 3 5

Attention!!

1. This illustration is for explanation purposes only.
2. Copper tubes must be insulated independently.

Indoor unit installation

Wall mounting brackets and dimensions

6" or more from the ceiling Wall mounting bracket Indoor unit outline 6" or more from the wall Refrigerant pipe hole (right) Ø 2.56" 4.21" 3.39" 3.39" A ≤12000 Btu's (A:33.31" B:10.83") 6" or more from the wall Refrigerant pipe hole (right) Ø 2.56"

6" or more from the ceiling Wall mounting bracket Indoor unit outline 6" or more from the wall Refrigerant pipe hole (right) Ø 2.56" 7.91" 1.58" 1.58" 5.31" 6" or more from the wall Refrigerant pipe hole (right) Ø 2.56" =18000 Btu's (A:36.97" B:11.73")

6" or more from the ceiling A Wall mounting bracket Indoor unit outline 6" or more from the wall Refrigerant pipe hole (right) Ø 2.56" 1.97" 3.94" 4.88" 6" or more from the wall 6" or more from the wall Refrigerant pipe hole (right) Ø 2.56" =21400 Btu's (A:39.69" B:12.40")

6" or more from the ceiling A Wall mounting bracket Indoor unit outline 6" or more from the wall Refrigerant pipe hole (right) Ø 2.56" 1.97" 3.94"4.86" ≥28000 Btu's (A:53.15" B:12.83") 6" or more from the wall 1.97" Refrigerant pipe hole (right) Ø 2.56"

Installing the Wall Mounting Bracket

1. Install the wall mounting bracket horizontally over the structural parts on the wall using the spaces indicated on the bracket, as shown in figure 1.3.

2. In the case of tiled, concrete or similar walls, create 13/64" diameter holes. Place anchor supports for the appropriate assembly screws.

3. Install the wall mounting bracket to

the wall with eight A type screws. 4. At all times securing to the wall studs is recommended.

Wall mounting bracket

Figure 1.3

Attention!!!

Fit the wall mounting bracket and drill holes in the wall according to the wall structure and corresponding mounting points on the wall mounting bracket (Dimensions are in "inches" unless otherwise stated).

Drilling the Hole

1. Determine the position of the hole for the pipes using the wall mounting bracket and drill the pipe hole so that it is tilted slightly downward.

2. Always use a pipe cover with an opening when drilling.

Wall Indoor unit Outdoor unit 0.2"-0.28"

Connective pipe and drainage installation

Connective pipe

1. For the left-hand and right-hand piping, remove the pipe cover from the side panel. The pipe cover can be kept as it may be used when relocating the air conditioner to any other place.

2. For the rear-right-hand and rear-left-hand piping, install the piping as shown in figure 1.4. Bend the connective pipe to be laid at a height of 1-11/16" or less from the wall. Fix the end of the connective pipe.

Drainage

1. Run the drain hose sloping downward. Do not install the drain hose as illustrated in figure 1.5.

2. When connecting extension drain hose, insulate the connecting part of extension drain hose with a shield pipe, do not let the drain hose slack.

Fastening the Indoor Unit

1. Pass the piping through the hole in the wall.

2. Put the upper claw at the back of the indoor unit on the upper hook of the wall mounting bracket, move the indoor unit from side to side to see that it is securely hooked.

Pipe cover (right) Pipe holder Pipe cover (left) Left piping Right piping Rear right piping Rear left piping

Figure 1.4

Indoor unit outline Connective pipe 1-11/16"

Do not block water flow by a rise.

Do not block water flow by a rise.

Do not of drain

Figure 1.5

Upper hook Lower hook

1. Piping can easily be made by lifting the indoor unit with a cushioning material between the indoor unit and the wall.
2. Push the lower part of the indoor unit up on the wall, Then move the indoor unit from side to side, up and down to check if it is hooked securely.

Cushioning material

Piping and wrapping

1. Bundle the tubing, connecting cable, and drain hose with tape securely and evenly as shown in the sideward figure.
2. Because the condensed water from rear of the indoor unit is gathered in ponding box and is piped out of room, do not put anything else in the box.

Indoor unit Cable connection Drain hose Ponding box Pipe room Connective pipe Wrapping belt

Attention!!

1. Connect the indoor unit first, then the outdoor unit.
2. Be careful not to let the drain hose slack.
3. Both of the auxiliary piping should be heat insulated.
4. Be sure that the drain hose is located at the lowest side of the bundle. Locating at the upper side may cause drain pan to overflow inside the unit.
5. Never intercross nor intertwist the power wire with any other wiring.
6. Run the drain hose sloped downward to drain out the condensed water smoothly.

Outdoor unit installation

1. Install the outdoor part of the unit on a flat surface to avoid excess noise and vibration. A condenser pad is recommended.
2. Direct the air vent toward an area without obstacles.
3. Install the unit at the site where it is exposed to as little wind as possible, especially in areas where it is frequently windy.
4. If the installation site is exposed to heavy winds, such as in coastal areas, place the unit along the widest part of the wall or use protective plates.
5. Be sure there is no obstacle which blocks exhausting air, including schrubs or bushes.

Settlement of outdoor unit. Anchor the outdoor unit tightly and horizontally on a concrete or flat mount with a bolt and nut 2/5" or 5/16" diameter (Purchased separately).

Illustration of a wall-mounted air conditioner unit with a circular button, against a brick wall background (no text or symbols)

Strong wind

Air inlet Air outlet

Capacity (BTU/h)	Outdoor unit dimension inch(WxHxD)	A (inch) B (inch)
	33-9/25 x 21-6/25 x 12-3/5	21-6/259	000-7/25
12000	33-9/25 x 23-6/25 x 12-3/5	22-2/25	14-4/25
18000	37-3/5 x 27-3/5 x 15-3/5	24-6/25	15-9/25
21400	38-3/5 x 31-1/10 x 16-3/5	26-4/25	17-7/25
28000	38-3/5 x 31-1/10 x 16-3/5	26-4/25	17-7/25
33600	38-3/5 x 31-1/10 x 16-3/5	26-4/25	17-7/25
26000	38-3/5 x 31-1/10 x 16-3/5	26-4/25	17-7/25
34400	42-4/5 x 43-4/5 x 17-3/10	31-3/25	18-3/25

Condensate drainage of outdoor unit (cooling only excluded)

The condensate and defrosting water produced during heating in the outdoor unit can be properly discharged by drainage pipe.

Installation method: Insert the drain connection into one of the holes of the chassis and then connect drainage pipe with drain nozzle. Insert drainage plugs (with different appearance) into the other holes.

Drain connection Chassis Drainage Plug

Refrigerant piping connection

Unit comes with 25' tubing bundle. It is not recommended to cut. If too long, loop for excess.

Note: Keep original bend so not kinking of the tube occurs.

Flaring work

Main cause for refrigerant leakage is due to defect in the flaring work.

Carry out correct flaring work using the following procedure:

1. Cut the pipes and the cable.

A) Use the piping kit accessory or pipes purchased locally.
B) Measure the distance between the indoor and the outdoor unit.
C) Cut the pipes a little longer than the measured distance.
D) Cut the cable 5ft longer than the pipe length.

1. Burr removal

A) Completely remove all burrs from the cut cross section of pipe/tube.
B) Put the end of the copper tube/pipe in a downward direction as you remove burrs in order to avoid dropping burrs into the tubing.

1. Put nut on.

Remove flare nuts attached to indoor and outdoor unit, then put them on pipe/tube having completed burr removal. (It is not possible to put them on after flaring work)

Pipe Correct 90° Wrong Oblique Roughness Burr Point down Pipe Reamer Flare nut Cooper tube

4. Flaring work.

Firmly hold copper pipe in a die in the dimension shown in the table below.

OUTER DIAMETER (inch)	A (inch)
	Max.	Min.
1/4	0.051	0.028
3/8	0.063	0.039
1/2	0.071	0.039
5/8	0.095	0.087

Bar Copper pipe Handle Yoke Red arrow mark Clamp handle

Connection Adjustment

1. Align the pipes to be connected.
2. Screw the flare nut with your fingers, and then tighten it with a spanner and torque wrench, as shown in figure 1.6.

Caution: Excessive twisting may break the nut, depending on the installation conditions.

Indoor unit tubing Flare nut Pipings

Figure 1.6

Illustration of a hand using a tool to lift a mechanical component (no text or symbols)

OUTER TIGHTENING DIAMETER (inch)	ADDITIONAL TIGHTENING -in)	TORQUET(ORQUE) (lbf)
1/4	139 174
3/8	260 304
1/2	434 477
5/8	651 694

Electrical work

Electric safety regulations for the initial installation

1. If there is serious safety problem about the power supply, the technicians should refuse to install the air conditioner and explain to the client until the problem is solved.
2. Power voltage should meet the requirements in table 2.1.

3. Over current protection and circuit disconnect should meet the requirements in table 2.1 and the applicable local and national electrical codes.

4. Ensure the air conditioner is grounded well.

5. All wiring must comply with local and national electrical codes and be installed by qualified and skilled electricians.
6. An individual branch circuit used only for this air conditioner must be available. See table 2.1.

Electrical Data Table 2.1
Capacity (BTU/h)	System Voltage Volts-Ph.-Freq	Operating Voltage			Outdoor FanCompressor Indoor Fan					MIN. Circuit Ampacity (MCA)	Max. Fuse/Circuit Breaker Amps(MOP)
		(Min/Max)	RLA LRA FLA			Output Watts	Volts FLA		Output Watts
9000 208/230-1-60 187/253 7.17 /		0.14				30	208/230V-AC	0.20 20	10 15
12000 208/230-1-60 187/253 6.47 /		0.14				30	208/230V-AC	0.20 20	10 15
18000 208/230-1-60 187/253 9.70 /		0.28				60	208/230V-AC	0.32 20	13		20
21400 208/230-1-60		187/253	11.04 /	1.10		90 0.2	208/230V-AC				25
28000 208/230-1-60		187/253	13.50 40	0.45		120 0.4	208/230V-AC				30
33600 208/230-1-60		187/253	17.50 67	0.73		170 0.4	208/230V-AC			40
26000 208/230-1-60		187/253	15.82 /	0.59		90	/	/	/	21	35
34400 208/230-1-60		187/253	15.60 /	0.82		170	/	/ 21	/		35

Connecting (Power and Control Cable)

The image contains only a stylistic horizontal line, which must be ignored according to the rules. According to Rule 2, such lines must be ignored and not represented by underscores or any other character in the OCR output.

Therefore, the corrected OCR text is:

[Empty String]

cable from the outdoor unit to indoor unit consists of four wires and provides the power for the indoor unit as well as the communication signal and ground between the outdoor and indoor unit. Two wires are high voltage AC power, one is low voltage DC signal and one is a ground wire.

The image contains only a stylistic horizontal line, which must be ignored according to the rules. According to Rule 2, such lines must be ignored and not represented by underscores or any other character in the OCR output.

Therefore, the corrected OCR text is:

[Empty String]

(Canadian Electrical Code) for special requirements.

Connect the cable to the indoor unit

1. The inside and outside connecting cable can be connected without removing the front grille.
2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed flexible type cord.
3. Lift the indoor unit panel up, remove the electrical box cover by loosening the screw.
4. Ensure the wire color of the outdoor terminal and indoor terminal correspond respectively.
5. Wrap the cable not connected to the terminal block with insulation tape so that they will not come in contact with any electrical components. Secure the cable onto the control board with the cord clamp.

Electrical box cover

Illustration of a car air conditioner unit with airflow arrow indicating cooling effect (no text or symbols)

Cable Code wire 0.39" 1.57"

Terminal block of indoor unit

N(1) 2 3

To Outdoor Unit

Connect the cable to the outdoor unit

1. Remove the electrical control board cover from the outdoor unit by loosening the screw.
2. Connect the connective cables to the terminals as identified with their respective matched numbers on the terminal block of indoor and outdoor units. The connective cable to power supply shall be approved polychloroprene sheathed flexible cord.
3. Secure the cable onto the control board with the cord clamp.
4. To prevent the ingress of water, form a loop of the connective cable as illustrated in the installation diagram of indoor and outdoor units.
5. Insulate unused cords (conductors) with PVC-tape. Process them so they could not touch any electrical or metal parts.

Cover Screw

Cable Code wire 0.39" 1.57"

N(1) 2 3 L N To indoor unit To power supply

Single split terminal block

Indoor unit A Indoor unit B Indoor unit C L1 L2 N(1) 2 3 To power supply To indoor unit N(1) 2 3 To indoor unit N(1) 2 3 To indoor unit

26000 Btu/h Multi split terminal block

Indoor unit A Indoor unit B Indoor unit C Indoor unit D Indoor unit E L1 L2 N(1) 2 3 To power supply To indoor unit N(1) 2 3 To indoor unit N(1) 2 3 To indoor unit N(1) 2 3 To indoor unit To indoor unit To indoor unit

33400 Btu/h Multi split terminal block

Caution

After the confirmation of the above conditions, prepare the wiring as follows:

1. Never fail to have an individual power circuit specifically for the air conditioner. As for the method of wiring, be guided by the circuit diagram posted on the inside of control cover.
2. The screws which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation. Check them and make sure that they are all tightly fastened. (If they are loose, it could cause burn-out of the wires.)
3. Specification of power source.
4. Confirm that electrical capacity is sufficient.
5. See to that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate.
6. Confirm that the cable thickness is as specified in the power source specification.
7. Always install an earth leakage circuit breaker in a wet or moist area.
8. The following would be caused by voltage drop: vibration of a magnetic switch, which will damage the contact point, fuse breaking, disturbance of the normal function of the overload protector.
9. The means for disconnection from a power supply shall be incorporated in the fixed wiring and have an air gap contact separation of at least 1/8" in each active (phase) conductors.

Purging the system

Air and moisture in the refrigeration system have undesirable effects as indicated below:

1. Pressure in the system rises.
2. Operating current rises.
3. Cooling or heating (only for models with heating function) efficiency drops.
4. Moisture in the refrigerant circuit may freeze and block capillary tubing.
5. Water may lead to corrosion of parts in the refrigeration system.

Therefore, the indoor unit and tubing between the indoor and outdoor unit must apply leakage test and be evacuated to remove any noncondensables and moisture from the system.

Purging the system with a vacuum pump

1. Check that each tube (both liquid and gas side tubes) between the indoor and outdoor units have been properly connected and all wiring for the test run has been completed. Remove the service valve caps from both the gas and the liquid side on the outdoor unit. Note that both the liquid and the gas side service valves on the outdoor unit are kept closed at this stage.
2. When relocating the unit to another place, perform evacuation using vacuum pump.
3. Oil trap should be installed every 16'-25' (no oil trap needed when outdoor unit installed at a lower place than indoor unit).
4. Pipe length and refrigerant amount for single split type air conditioner. (see tabel 2.2)

Outdoor unit (A) (B) Indoor unit

Outdoor unit (A) Oil trap (B) Indoor unit

Piping length under 16' Piping length 16' or more

Table 2.2

Cooling capacity (BTU/h)	System	Connective pipe length (A)	Max height difference (B)	Air purging	Additional amount of refrigerant to be charged
9000 Heat Pump		25'~49' 16'		Use vacuum pump.	R410a: 0.22ozs/ft*(Pipe length-25')
12000	Heat Pump	25'~66'	33'	Use vacuum pump.	R410a: 0.22ozs/ft*(Pipe length-25')
18000	Cooling Only	25'~82'	33'	Use vacuum pump.	R410a: 0.16ozs/ft*(Pipe length-25')
18000	Heat Pump	25'~82'	33'	Use vacuum pump.	R410a: 0.22ozs/ft*(Pipe length-25')
21400	Cooling Only	25'~82'	33'	Use vacuum pump.	R410a: 0.16ozs/ft*(Pipe length-25')
21400	Heat Pump	25'~82'	33'	Use vacuum pump.	R410a: 0.54ozs/ft*(Pipe length-25')
28000	Heat Pump	25'~98'	66'	Use vacuum pump.	R410a: 0.54ozs/ft*(Pipe length-25')
33600	Heat Pump Use	vacuum pump.25'~98' 66'			R410a: 0.54ozs/ft*(Pipe length-25')

1. Pipe length and refrigerant amount for multi split type air conditioner. (see tabel 2.3)

Table 2.3

Cooling capacity (BTU/h)	Connective pipe length (Lx)	Max connective pipe total length (H1)	Max height difference (H2)	Air purging	Additional amount of refrigerant to be charged
26000	25'~66'(x=1, 2, 3)	197'(H1=L1+L2+...+Lx, x≤3)	50'	Use vacuum pump.	R410a: 0.22ozs/ft*(Pipe length-82')
34400	25'~82'(x=1, 2, 3, 4, 5)	246'(H1=L1+L2+...+Lx, x≤5)	50'	Use vacuum pump.	R410a: 0.22ozs/ft*(Pipe length-131')

graph TD
    A["Outdoor unit"] --> B["Lx"]
    A --> C["ba"]
    A --> D["L4L3L2 L5L1"]
    C --> E["Indoor unit"]
    D --> E
    E --> F["e"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#cfc,stroke:#333
    style E fill:#fcc,stroke:#333
    style F fill:#fff,stroke:#333

Caution in handling the packed valve integrated in the outlets of outdoor unit.

1. Operation of opening packed valve: Open the valve stem until it hits against the stopper. Do not try to open it further.
2. Operation of closing packed valve: Securely tighten the valve stem with a special tool. Then securely tighten the valve stem cap with a spanner or the like. Refer to the table on page 17 for valve cap tightening torque.

Note: There is a charging port integrated in the low side outlet, but not in the high side outlet. The low side outlet is shown in the sketch map below.

graph LR
    Refrigerant["Refrigerant"] --> A["A"]
    Refrigerant --> B["B"]
    Refrigerant --> C["C"]
    Refrigerant --> D["D"]
    Refrigerant --> Gas["Indoor unit"]
    Refrigerant --> HalfUnion["Half union"]
    PackedValve["Packed valve"] --> A
    PackedValve --> B
    Gas --> C
    Gas --> D
    Gas --> HalfUnion
    style Refrigerant fill:#f9f,stroke:#333
    style_Airlock[" "] fill:#ccf,stroke:#333
    style Gas fill:#cfc,stroke:#333
    style Airlock fill:#fcc,stroke:#333
    style Gas fill:#cff,stroke:#333
    style Airlock fill:#ffc,stroke:#333
    style Gas fill:#cfc,stroke:#333
    style Airlock fill:#fcc,stroke:#333
    style Gas fill:#cfc,stroke:#333
    style Airlock fill:#fcc,stroke:#333
    style Gas fill:#cfc,stroke:#333
    style Airlock fill:#fcc,stroke:#333
    style Gas fill:#cfc,stroke:#333
    style Airlock fill:#fcc,stroke:#333

Flare nut Valve body Charge port Cap Valve stem Stopper

When using the vacuum pump

For method of using a manifold valve, refer to its operation manual.

1. Completely tighten the flare nuts at connection point A, B, C and D. Connect valve core removal tool to the charging port, then connect vacuum hose to valve core tool. Open the schrader valve.

Note: The schrader valve is inside the charging port.

1. Connect the other charge hose of manifold valve to the vacuum pump.

2. Fully open the Low Side handle of the manifold valve.

3. Operate the vacuum pump to evacuate. After starting evacuation, slightly loose the flare nut of the Low Side valve on the gas pipe side and check if the air is entering (Operation noise of the vacuum pump changes and a compound meter indicates 0 instead of minus), then tighten the flare nut. The procedure verifies if there are blocks inside the tubes.

4. Make evacuation for 15 minutes or more and check that the compound meter indicates -7-3/5 x 10 Microns Hg (-1x10 Pa). After the evacuation is completed, fully close the Low Side handle of the manifold valve and stop the operation of the vacuum pump.

5. Turn the stem of the packed valve B about 45° counterclockwise for 6\~7 seconds after the gas comes out, then tighten the flare nut again. Make sure the pressure display in the pressure indicator is

Indoor unit Outdoor unit Manifold Valve -76cm/Hg Low Side Charge Hose High Side Charge Hose Vacuum pump

a little higher than the atmospheric pressure. This procedure verifies if the refrigerant goes through the tubes correctly.

1. Close the schrader valve, then remove the valve core tool. Replace the charging port cap.

2. Fully open the packed valve stems B and A.

3. Securely tighten the cap of the packed valve.

Electrical safety

Perform the electric safety check after completing installation:

1. Insulated resistance: The insulated resistance must be more than 2M.

2. Grounding work: After finishing grounding work, measure the grounding resistance by visual detection and grounding resistance tester. Make sure the grounding resistance is less than 4.

3. Electrical leakage check (performing during test running): During test operation after finishing installation, the serviceman can use the electric probe and multimeter to perform the electrical leakage check. Turn off the unit immediately if electrical leakage happens. Check and find out the solution ways till the unit operates properly.

Gas leak check

Soap water method

Apply a soap water or a liquid neutral detergent on the indoor unit connection or outdoor unit connections by a soft brush to check for leakage of the connecting points of the piping. If bubbles come out, the pipes have leakage point.

Leak detector

Use the leak detector to check for leakage.

Caution

A: Low side valve, B: High side valve valve C and D are ends of indoor unit connection.

indoor unit check point Cover Outdoor unit check point D C B A

Initial operation test

Perform test operation after completing gas leak check at the flare nut connections and electrical safety check.

1. Connect the power, press the ON/OFF button on the remote controller to turn the unit on.
2. Use the MODE button to select COOL, HEAT (Only for models with heating function), AUTO and FAN to check if all the functions work well.
3. When the ambient temperature is too low(lower than 63 °F), the unit cannot be controlled by the remote controller to run in cooling mode, manual operation can be taken. Manual operation is used only when the remote controller is disable or maintenance necessary.

Illustration of a wall-mounted air conditioner unit with airflow arrows indicating airflow direction (no text or symbols)

Auto/OFF

Manual control button