ACE1110B - Instant and Storage Water Heaters ASPES - Free user manual and instructions

Product Type	Instantaneous and storage water heater
Brand	Aspes
Model	ACE1110B
Storage Capacity	10 liters
Heating Power (Instantaneous)	3.0 kW
Heating Power (Storage)	1.5 kW
Rated Voltage	220-240 V ~ 50 Hz
Rated Current	13 A
Maximum Temperature	75 °C
Dimensions (H x W x D)	600 x 400 x 300 mm
Weight (net)	15 kg
Water Connection	G 1/2" BSP
Pressure Rating	0.6 MPa (6 bar)
Energy Efficiency Class	C
Standby Power Consumption	< 0.5 W
Control Type	Mechanical thermostat
Safety Features	Thermal cut-out, pressure relief valve
Installation Type	Wall-mounted vertical
Water Heating Mode	Instantaneous + backup storage
Maintenance	Descale every 6 months; replace anode annually
Spare Parts Availability	Anode, thermostat, heating element, seals
Protection Class	IPX4
Noise Level	< 25 dB(A)

Frequently Asked Questions - ACE1110B ASPES

How do I install the ACE1110B water heater?

Installation must be carried out by a qualified professional. Ensure the wall can support the weight, and connect to cold water supply and electrical outlet (230V). Refer to the manual for detailed steps.

What is the difference between instantaneous and storage mode?

The device can heat water instantly for immediate use (instantaneous) and also store hot water in a 10-liter tank for backup (storage). The storage mode provides a reserve when demand is high.

How to set the water temperature?

Adjust the mechanical thermostat knob (usually located on the front panel). Turn clockwise to increase temperature, up to 75 °C. Wait 5-10 minutes after adjustment for the new temperature to stabilize.

What maintenance does the ACE1110B require?

Regular descaling is recommended every 6 months to prevent limescale buildup. Also, check and replace the sacrificial anode annually to protect against corrosion.

Can I use the water heater during a power outage?

No, the ACE1110B requires electricity to operate both the instantaneous and storage heating elements. It cannot function during a power cut.

What safety features are included?

The unit includes a thermal cut-out that shuts off power if overheating occurs, and a pressure relief valve to prevent overpressure. These are vital safety components.

Is the water heater suitable for bathrooms?

Yes, the ACE1110B has an IPX4 rating, meaning it can be installed in a bathroom but should be placed away from direct water spray (e.g., above the shower area).

What is the energy consumption?

With a maximum power of 3.0 kW in instantaneous mode, it is efficient for on-demand use. The standby consumption is less than 0.5 W, making it economical.

How do I clean the water heater?

Disconnect power and water supply. Drain the tank (if any water). Use a soft cloth to wipe the exterior. For descaling, use a descaling solution through the inlet pipe. Do not use abrasive cleaners.

Where can I find spare parts?

Spare parts such as the heating element, thermostat, anode, and seals are available through Aspes authorized service centers or online retailers. Use only genuine parts.

USER MANUAL ACE1110B ASPES

Cartoon illustration of a T-shirt hanging on a clothesline above a square character with a surprised expression (no text or symbols)

Illustration showing two hand positions: one with a droplet on the surface, the other holding a tool (no text or symbols present)

Line drawing of a cabinet and electronic component (no text or symbols)

Illustration of a cartoon character with facial expression, surrounded by clothes hanging on a line and containers (no text or symbols)

Cartoon illustration of a steaming appliance and two cooking pots (no text or symbols)

Simple line drawing of a smiling electrical outlet connected to a power plug (no text or symbols)

4. MÉTODOS DE USO

Line drawing of hands washing clothes with a showerhead, surrounded by clouds (no text or symbols)

4.3 Deje de usarlo

Pure technical diagram of a valve assembly without any text, numbers, or symbols

Cartoon illustration of a smiling refrigerator with a hand cleaning it (no text or symbols)

Simple line drawing of a handheld electronic device with a grid symbol on its body (no text or labels)

Domestic Flue Gas Water Heater

Modelo: ACE1110B

ACE1310B

0359-19

PIN: 0359CU04169

Thank you very much for purchasing our water heater. Before installing and operating your water heater, please read this manual carefully and keep it for future reference.

TABLE OF CONTENTS

TITLE

PAGE

1. CAUTIONS....2
2. PRODUCT INTRODUCTION ....4
3. UNIT INSTALLATION 8
4. METHODS OF USING 17
5. MAINTENANCE ....21
6. TROUBLESHOOTING ....21

The heater corresponds to requirements of CE standard, and accord with the following directives:

●(EU)2016/426 ;legal Facilities directives of the Member States for Natural Gas Installation.
●2014/30/EU ; Directives for the electromagnetic compatibility.
- EN 26; water heaters in the sanitary equipped with atm ospheric gas burner with natural gas as fuel.
●EN 50165; non-electronic electrical apparatuses for home use and other similar uses.
- EN 55014; electromagnetic compatibility. Requirements of electromagnetic appliances, electronic tools and other similar apparatuses.
●EN 61000-3; Electromagnetic compatibility (CEM)
●EN 60335-1; non-electronic heating apparatuses for home use and other similar uses

1. CAUTIONS

1.1 Special Cautions

When the water heater is working, gas combustion would consume a large amount of oxygen and exhaust much carbon monoxide. In view of the great harm to the human health or even death caused by excessive carbon monoxide inhalation, the company sincerely advises all users that:

• The water heaters must be correctly installed and used according to the requirements of this manual.
• The water heater must be installed in rooms, do not install outdoors.
• The power socket must be reliably earthed.
• This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance.

Cleaning and user maintenance shall not be made by children without supervision.

If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.

WARNING

We shall not be liable for any accident arising from unauthorized disassembly or failure to operate on this instruction manual.

1.2 Prevention of Gas Accident

• Confirmation of category of gas: the category of gas used must be identical to that specified on the nameplate of the water heater without prior permission, and no forced use of different categories of gas.
• Make sure that the burner has gone out after use, and don't forget to close the main gas valve.
• Examine the leak tightness of each joint and pipeline frequently. Under normal conditions, the rubber pipes shall be replaced once every year.
• For the users of liquefied petroleum gas, if it is found that the flame of the water heater is high one minute and low the next, the decompression valve at the exit of gas vessel maybe breaks down. At this moment, stop use of the water heater and replace with a qualified decompression valve.
• For the users of natural gas, when the flame is found abnormal (due to instability of gas pressure in the pipelines), stop using of the water heater temporarily. If it is forced to be used, the heater may be damaged, even resulting in an accident.
• If the leakage is found, don't ignite or operate the switches of any kinds of electrical appliances, and don't make calls. Close the main gas valve immediately, open all the doors and windows to exhaust the leaked gas outdoors automatically, stop using the water heater, and contact with the maintenance department or the gas company.
• The water heaters are strictly forbidden to work with failure. If a heater breaks down, please contact with the repair center of our company in time.
• This water heater can be only used for hot water supply or shower. Do not use it for other purposes.

No smoke and fire Close gas valve

1.3 Guards Against Fire

• It is absolutely forbidden to leave home or go to sleep under the circumstance that a water heater hasn't gone out.
• No inflammable goods placed near the fume hood of a water heater. The air intake and the exhaust exit shall not be covered by towels, clothing, etc.

Cartoon illustration of a shirt hanging on a clothesline above a small electronic device with a surprised expression (no text or symbols)

Illustration showing two hand positions: one holding a curved object and the other holding a cylindrical object with a string (no text or symbols)

1.4 Other Cautions

• Preventing scald due to overheat: If the use of a water heater is restored immediately after the hot water valve is closed, do not contact the hot water until several seconds later, to prevent the skin burned due to too high transient temperature rise.
• Improper for drinking water supply: since there is water stored in a water stored in a water heater for a long time, the hot water supplied by the heater can only be used for general purposes, but not suitable for drinking.
  • Prevention of electric accident

① Take the electrical plug out before chean or maintenance
② Do not touch the receptacle with a wet hand, as this will have the risk of electric shock.
③ Please insert the power supply plug securely on the plug. A dusty or loose plug might be the cause of an electric shock or fire.
④ Do not pull out the plug by pulling the power cord, as this might break the internal wire of the cord and further lead to wire heating or a fire.
⑤ This unit must be connected to a ground wire. Make sure the ground wire is connected properly.

- During ignition, it is strictly forbidden to let the eyes close to the observation hole to examine the ignition conditions. The distance between eyes and observation hole shall be larger than 300mm.

2. PRODUCT INTRODUCTION

2.1 Technical Performance Parameters (Table 1)

Model	ACE1110B ACE1310B
CE-Pin		0359CU04169
Power Consumption	W 45	45 45									45
Rated Voltage	V.ac	230~ 230~ 230~									230~
Frequency	Hz	50 50 50 50
Gas
Gas Category		I3P(37)	I3B/P(30)	I3+(28-30/37)		I 2H	I3P(37)	I3B/P(30)	I3+(28-30/37)		I 2H
Gas Type		G31		G30	G30	G20	G31	G30/G31	G30	G31	G20
Gas pressure	mbar	37	30	28-30	37	20	37	30	28-30	37	20
Power
Nominal Heat Input(Q)	kW	22			22		26				25
Nominal Useful Output	kW	19.4			19.4		22.9				22.0
Minimum Heat Input	kW	10.8			10.8		11.5				11.5
Minimum Useful Output	kW	9.5			9.5		10.1				10.1
Efficiency of energy sources		88%			88%		88%				88%
Water supply pressure
Max. water pressure	bar	10			10		10				10
Min. water pressure	bar	0.2			0.2		0.2				0.2
Max. water pressure	MPa	1.0			1.0		1.0				1.0
Min. water pressure	MPa	0.02			0.02		0.02				0.02
Max.waterflow(2bar)	L/min	14.0			14.0		14.0				14.0
Min.waterflow(2bar)	L/min	8.0			8.0		8.0				8.0
Connections
Gas connection	inch	1 2"			1 2"		1/2"				1 2"
Cold water connection	inch	1 2"			1 2"		1/2"				1 2"
Hot water connection	inch	1 2"			1 2"		1/2"				1 2"
Flue gas pipe diameter(D)	mm	Φ 60-100(C12,C32) / Φ80(B22)					Φ 60-100(C12,C32)
Maximum temperature of exhaust pipe Q Hi **	°C	135
Flue gas pipe length
Max. length of flue pipe	m	4			4		4				4
Max. quantity of elbow	pc	1			1		1				1
Net dimensions / net weight
Dimensions (L×W×H)	mm	660x370x213			660x370x213		660x370x213				660x370x213
Weight	kg	13.4			13.4		13.8				13.8
Gross dimensions / net weight
Dimensions	mm	800x435x280			800x435x280		800x435x280				800x435x280
Weight	kg	15.3			15.3		15.7				15.7
Table of nozzle pressure
nozzle
Diameter of nozzle	mm	Φ 0.54			Φ 0.86		Φ 0.54				Φ 0.86
Quantity of nozzle	unit	24			24		30				30

ERP
Declare load profile		M	M	XL	XL
Water heating energy efficiency class		A	A	A	A
Water heating energy efficiency ηWH	%	73.96	73.96	81.7	81.7
Daily gas consumption (Corrected)	kWh	8.446	8.446	24.216	24.216
Daily electrical consumption (Corrected)	kWh	0.0223	0.0223	0.12783	0.12783
AEC	kWh	25	25	27	27
Annual fuel consumption AFC	GJ	6	6	18	18
NOx	mg/kWh	45	27	41	30
Indoor sound power level LWA	dB	60	60	60	60
Operation temperature	°C	1°C - 40°C
Protection type	IPX4 (C12/C32)
Type of installation	C12/C32/B22			C12/C32
Category	Countries
I3+(28-30/37)	BE, CH, CY, CZ, ES, FR, GB, GR, IE, IT, LT, LU, LV, PT, SK, SI
I3B/P(30)	AL, CY, DK, EE, FI, FR, HU, IT, LT, NL, NO, SE, SI, SK, RO, HR, TR, BG, IS, LU, MT.
I3P(37)	BE, CH, CZ, ES, FR, GB, GR, HR, IE, IT, LT, NL, PT, SK, SI
I2H	GB, AT, AL, BG, HR, CZ, DK, EE, FI, GR, IS, IT, LV, LT, MK, NO, PT, SK, SI, ES, SE, CH, TR

Technical line drawing of a vertical cylindrical component with labeled height H (no text or symbols beyond the label)

WARNING

The specifications given on the nameplate shall be taken as the standard for special category of gas. Re-equipment or changing into other gas types is not allowed!

2.2 Internal Structural Diagram

Note: The illustration is a reference image, your device may differ

2.3 Functional Features

• Sealed Design: the air inlet and exhaust are completely isolated from the air in the room, so the water heater can be installed in the bathroom.
• Automatic Adjustment Of Water Temperature: advanced proportional regulator, the water temperature can be kept constant at preset temperature(36\~60 C).
• Compulsory Exhaust Device: the waste gases of the water heater can be exhausted outdoor; at the same time, the air necessary for combustion can be inhaled into the heater compulsory. Since the air inlet and exhaust are isolated from the air in the room, the atmospheric environment will not be affected, and the air in the room is kept fresh.
• Ultra-low Water Pressure Starting: the hydraulic pressure for start is as low as 0.02 MPa, the applicable range is wide.
• Flame-out Protection: The water heater will automatically cut off the gas to ensure the gas not leaked when it flames out accidentally during the use.
• Water-gas Interlocked Control: The water heater will automatically stop combustion and shut down when the supply of tap water is suspended or the water valve is shut off.
• Over-pressure Protection: When the pressure of the water supply is too high, the safety valve of the water heater can automatically relieve pressure to avoid any damage to the water heater.
• Convenient Removable Water Filter: For areas where the water quality is poor, an easily removable water filter is provided specially for cleaning.
• Brand-new Ultra-thin Appearance Design: Multifunctional color screen display, electronic touch key control, random adjustment of water temperature, automatic constant temperature.
• The Advanced Enclosed Combustion Chamber: Adopts the compulsory proportional combustion mode to control combustion at the optimum state with high thermal efficiency, safe and energy saving.
• The Intelligent Controller: It is provided with a multifunctional operation panel to enable long distance multi-point wired control and two-way communication with the unit easily for desired operations.
• Overheat Protection: The water heater will automatically cut off the gas and stop working when the temperature of the water flowing out from the water heater exceeds 90 °C or dry burning occurs.
• Digital display and setting of outlet water temperature, easy and convenient to use.
• Power supply indicator, burning indicator, acousto-optic diplex alarm system to attract attention of the user, safer to use.
• Ultra-large water flow, satisfying multi-point water supply simultaneously.

2.4 Internal wire Diagram

3. UNIT INSTALLATION

3.3 Installation Modes

The combustion air intake grille must locate in a well-ventilated place. To prevent corrosion, it is necessary that the combustion air is free of aggressive substances. Aggressive substances are halogenated hydrocarbons which contain chlorine or fluorine. These substances are found in solvents, paints, adhesives, gasses or liquid-propellants and household cleaners. If these conditions are not able to guarantee, another place should be chosen for the air intake.

This unit must be installed indoors and must not be installed outdoors. Never use this unit when no compulsory gas supply and exhaust pipe is installed.

3.2 Brief Introduction

The water heater must be installed by technicians with professional qualifications for installation. Since the improper installation is liable to failures, the customers shall not install the heater by themselves. Before installation, please make sure again that the category of gas used is identical to that specified on the nameplate. The B22 gas water heater can not be installed in bathroom.

WARNING

The water outlet pipe cannot be connected to the shower nozzle directly; and a water outlet valve must be installed as shown in above illustration.

3.3 Packing List Parameters

Name and Illustrations Quantity Name and Illustrations Quantity
	Water Heater	1		Plastic Plug Tapping Screw	2
	Instruction Manual	M6 Expansion Scre			1
	Hose Coupler	1		Seal ring	1

Line drawing of a cabinet and electronic component (no text or symbols)

- Installation of the unit: Mount the unit upright without inclination according to the dimension show in the following illustration.

- Type of installation (C12) - Installation of compulsory gas supply and exhaust pipe of the unit: a. Installation mode of topside exhaust.

As show in the figure below, tap in expansion screws for fixation, hang the unit vertically and screw it down with nuts, insert plastic plugs below it and screw down self-tapping screws.

b. Installation mode of top rear exhaust.

As show in the figure below, tap in expansion screws for fixation, hang the unit vertically and screw it down with nuts, insert plastic plugs below it and screw down self-tapping screws.

• Type of Installation (C32)
- Installation of compulsory gas supply and exhaust pipe of the unit: a. Installation mode of topside exhaust.

As show in the figure below, tap in expansion screws for fixation, hang the unit vertically and screw it down with nuts, insert plastic plugs below it and screw down self-tapping screws.

• Type of Installation (B22)
- Installation of compulsory gas supply and exhaust pipe of the unit: a. Installation mode of topside exhaust.

As show in the figure below, tap in expansion screws for fixation, hang the unit vertically and screw it down with nuts, insert plastic plugs below it and screw down self-tapping screws.

b. Installation mode of top rear exhaust.

As show in the figure below, tap in expansion screws for fixation, hang the unit vertically and screw it down with nuts, insert plastic plugs below it and screw down self-tapping screws.

ACE1110B

NOTE

The B22 gas water heater must be installed and used in well ventilated area, out-side a bathroom.

• Installation of gas pipe

a. Caution

① Be sure to select a special gas rubber hose or a suitable rigid tube and a gas relief valve.
② Select the pipe size according to Table 1.
③ The length of the rubber hose shall not exceed 2 meters.
④ The rubber hose must be connected to the red line position of the gas inlet joint and secured with a clamp.
⑤ After installation, check the unit with suds for gas leak.

b. Connect the unit to the gas joint with G1/2 pipe thread.

When LPG is used, connect the attached gas inlet hose joint to the gas supply pipe joint of the unit (be sure to mount a rubber sealing ring), then connect it with an 9.5mm special gas rubber hose. Insert one end into the hose joint of the unit's gas inlet until the hose is fitted over the red groove of the joint, and hold it with a clip.

• Installation of water inlet and outlet pipes.

Connect the water inlet and outlet pipes and tap water pipe of the unit with an 10mm metal hose, or with a water pipe with an inner diameter of greater than 15mm.

NOTE

Add a rubber sealing gasket when a metal hose is used.

3.4 Installation Caution

• Since this machine adopts compulsory air inlet and exhaust, it is permissible to be installed in the bathroom, however, the exit of exhaust system must be extended outdoors, and the distance between the end of outdoor exhaust pipe and adjacent or other articles must be larger than 600mm.
• This machine is not allowed to be installed outdoors to prevent damage of the heater caused by freezing of water.
• A water inlet valve shall be installed at the water inlet pipe of the unit, so that the water supply can be switched off in repair.
• The mounting position of the unit is made of a nonflammable material. If it is made of an inflammable or flame resistant material, a heatproof plate shall be used for heat insulation, whose distance from the wall shall be greater than 10mm.
• The lower edge of the unit shall be about 1.5m above the ground, so that its combustion can be easily observed and its temperature adjusted.
• A LPG user shall select a suitable, high-quality gas relief valve, whose specification shall not be less than 1.5m^3/h to guarantee the gas pressure and flow input into the unit.
• Natural gas users shall use a hard metal pipe with the same diameter as the gas inlet of the unit to reduce gas closure and pressure loss.
• There should be no inflammable or explosive material around the unit and the fume exhaust port, e.g., kerosene, gasoline, alcohol, paints, paper, clothes, etc.

Illustration of a cartoon character hanging clothes on a line with a bottle and container nearby (no text or symbols)

• Do not point the exhaust port directly to a nearby window when install the unit.
• The unit shall not be installed where there is corrosive gas or article, and there should be no exposed wire, electric appliance or gas pipe above it, or any gas range or baking oven below it.

Cartoon illustration of a steaming pot and a steaming pot with steam rising, no text or symbols present

- Receptacle shall be installed on the left or right side of the unit and must be grounded reliably.

Simple line drawing of a smiling electrical outlet connected to a power plug (no text or symbols)

4. METHODS OF USING

4.1 Preparation Before Ignition

• Insert the power supply plug and switch on the power.
• Open the main gas valve switch.
• Open the water inlet valve before ignition.

NOTE

Hot water outlet with control panel or line controller. The line controller is optional for custom-ers. If without special request from customers, the unit will be equipped with no line controller.

- Finish above mentioned preparation and confirmation before use.

- Press ON/OFF key on the operation panel, the LED will display the default water outlet temperature of 4°C, press the ▲/▼ key to set the hot water outlet temperature.

4.2 Ignition And Operation

- Ignition: Open the water outlet valve. the unit will start the exhaust device automatically and make a "frizzle" ignition sound; the LED will display the actual water outlet temperature. When the unit is running, there will be air in the gas pipe; therefore a single ignition might not work sometimes. In this case, close the hot water valve immediately and restart the unit after 10-20 seconds.

NOTE

For the first use or when the unit has not been used for a long time, operate as above repeatedly unit all the air in the exhaust pipe has been discharged.

- Adjustment of water outlet temperature: The preset range of the water outlet temperature is 35^ C\~ 65^ C. Every time the Temp Up key is pressed, the set temperature will rise by 1^ C, every time the Temp Down key has been released for 2 seconds, the screen will display the measured water outlet temperature.

- The set water outlet temperature has the memory function. However, in case of power off, the memory function will be disabled.

- Sound prompt function: In normal circumstances, every time the key on the operation panel is pressed, the key on the operation panel is pressed, the buzzer will make a sound for 0.5 second. When the unit fails or the 20-minute timing protection ends, the buzzer will give out continuous alarm sounds, the combustion indicator will flash rapidly and continuously, Press the ON/OFF key, the alarm will disappear and the screen will be closed, but the power indicator will not go out (green).

- Use of multiple line controllers: The priority principle will apply to the use of multiple line controllers, whichever is stated first will have the priority, while the power indicator of the controller with priority will flash, the remaining controller with priority will flash, the remaining controllers can be displayed but will not operate; the display will be that of the one with priority. When the controller with priority shuts down, the display of the remaining controllers will be closed.

To use hot water again after stop, do not let the hot water splash you, because the water temperature in the unit might be very high. Use it after several seconds of hot water outflow to avoid scald.

Line drawing of hands washing clothes with a showerhead, surrounded by clouds (no text or symbols)

4.3 Stop To Use

① Close the water outlet valve, the unit will stop automatically.
② Press the ON/OFF key on the operation panel.
③ Close the water inlet valve.
④ Close the main gas switch.
⑤ Switch off the power switch or pull out the power supply plug.

4.4 Anti-frozen Treatment Of The Unit

- Ani-frozen water supply method: Not only the main body, but also the cold/hot water pipes and valves can be protected from freezing. When there is a line controller, the ON/OFF key of the line controller shall be at the OFF position before you proceed with the following operations.

① Close the gas valve.

Close the gas valve.

② Open the water outlet valve (the water inlet valve is semi-open).

Since the flow is unstable, please confirm the flow again 30 minutes later. In cold weathers, be sure to increase the water flow.

• Ani-frozen drainage method:

When there is a line controller, the ON/OFF key of the line controller shall be at the OFF position and the unit shall be operated as follows:

① Close the gas valve.
② Pull out the power supply plug to cut off the power.
③ Close the water inlet valves.
④ Open all water outlet valves.
⑤ Remove the drain valve and the filter net faucet.
⑥ After drainage, replace the drain valve and the filter net faucet.

Maintain the above condition until the next operation after drainage.

① Open the water inlet valve, stop the water outlet when there is water outflow from the water outlet.
② Restart the unit in the order described in page 14(Preparation Before Ignition)

NOTE

In case of reuse, if you don't operate as above, there might be an error.

• Cautions for anti-frozen of the unit

① Neither the electric heating antifreeze method nor the antifreeze drainage method can prevent freezing of the pipes and valves. All pipelines and valves from the cold water inlet to the hot water outlet shall be wrapped with heat insulation materials to prevent freezing.
② When freezing has occurred, be sure to thaw it. Make sure there is no water leakage and the unit is running properly before use.

WARNING

All adverse consequences of wall and floor damage arising from water leakage due to failure to take any antifreeze measure will be born solely by the user.

5. MAINTENANCE

WARNING

Take the electrical plug out before clean or maintenance.

- Check up frequently to see whether the gas supply pipelines (rubber hose) are in good conditions without aging, cracks. Pay attention to periodic replacement of rubber hoses. In order to prevent gas leakage, check the joints of pipelines frequently by using suds to see if there are bubbles given off.

- A water heater must be examined, cleaned after it has been used for a period of time (generally about half a year) to guarantee normal operation of the heater. Observe the flame frequently. When the flame turns to be yellow from blue, accompanied by black fume, the heater must be cleaned.

- Clean the casing of the unit with water and neutral cleaner other than any chemical cleaner or volatile solvent, otherwise the casing will fade and lose luster.

- Clean the filter net at the water inlet of the unit regularly.

- Wipe the casing of the unit with soft and clean cloth often.

Cartoon illustration of a smiling rectangular device with eyes and a hand cleaning it, no text or symbols present.

- The water heaters must be examined, cleaned periodically by the professional personnel.

- Non-professional personnel can not open the cases of water heaters. Pull out the power plug when opening the case of a water heater. Do not wet the power socket with water in use to ensure safety.

6. TROUBLESHOOTING

WARNING

When there are any abnormal phenomena found, such as gas leakage, abnormal burning (backfire, deflaming, yellow flame or black fume, etc.), abnormal odors or sounds, etc., or other emergencies happened, close the gas valve immediately, and contact with the maintenance department or the gas company for disposal.

Simple line drawing of a handheld electronic device with a grid symbol on its side (no text or labels)

- Advanced error code display for more convenient operation and maintenance. Error codes:

Temperature sensor error A0
Outlet temperature sensor error A7
Water flow over the maximum value CA
Exhaust Blockage CF
Air Pressure Switch Wrong Connection C4
APS doesn't have pressure C6
Over-temperature protection E1
Inlet temperature sensor defective E2
Thermostat error E9
No flame	EA
Gas valve connection error EE
Wrong flame signal E7
Gas valve leakage FA
No flame signal EC

• Common failures and treatment.

PhenomenaCauses

Flameout during operation.

The unit will not ignite after starting

Deflagration.

Yellow flame accompanied by black fume.

Abnormal flame accompanied by abnormal odors

Abnormal sounds during ignition.

The water is still not hot even at the position of high temperature.

The water is too hot at the position of low temperature.

The flame goes out when the unit is set to the "Winter" position

The fire does not die out after the heater is turned off.

Treatment

The gas valve is not opened.

●

Fully open the gas valve or replace with a new gas vessel.

The gas valve is half opened.

●

Fully open the gas valve.

There is air filled in the gas pipes.

●

Open and close the water outlet valve continuously for several times till the ignition successes.

Inappropriate gas pressure

High

●

●

●

●

Ask the maintenance personnel to check the gas pressure regulation valve.

Low

●

●

Freeze

●

Contact with the maintenance personnel.

Inadequate hydraulic pressure of inlet

●

●

●

●

Ask the maintenance personnel to check hydraulic pressure.

The burner is blocked.

●

●

●

Contact with the maintenance personnel.

The heat exchanger is blocked.

●

●

●

Contact with the maintenance personnel.

Failures of water flow sensor

●

●

Contact with the maintenance personnel.

Failures of pulse igniter

●

●

Contact with the maintenance personnel.

Drop-off of internal wires

●

●

Contact with the maintenance personnel to connect the loosed or dropped wires correctly.

Failures of micro switch

●

●

●

●

Contact with the maintenance personnel.

Failures of fan

●

●

Contact with the maintenance personnel.

Failures of electromagnetic valve

●

●

●

Contact with the maintenance personnel.

Failures of feedback electrode

●

Contact with the maintenance personnel.

Abnormal discharge distance or discharge position

●

Adjust the ignition pin, and contact with the maintenance personnel.

The power is switched off, power failure

●

●

Switch on the power.

The master cold water valve is not opened.

●

Fully open the master water inlet valve.

Incorrect adjustment method of water temperature

●

●

Refer to the adjustment procedure for winter-summer fresh air.

Inadequate supply of fresh air

●

●

●

Improve the ventilation immediately to guarantee adequate fresh air supply.

Blocked fume duct

●

●

Reuse after clearing away foreign objects from the flue.

If other failures are encountered, stop use of the water heater immediately, and notify the professional maintenance department for repair. The users shall not remove or repair the water heaters without prior permission, otherwise an accident might occur.

WARNING

No use of water heaters with any failures.

DISPOSAL OF PACKAGING AND

Dispose of packaging in an environmentally-friendly manner. This appliance is labelled in accordance with European Directive 2012/19/EU concerning used electrical and electronic appliances (waste electrical and electronic equipment - WEEE). The guideline determines the frame work for the return and recycling of used appliances as applicable throughout to the EU.

PACKAGE INFORMATION: Packaging materials of the product are manufactured from recyclable materials in accordance with our National Environment Regulations. Do not dispose of the packaging materials together with the domestic or other wastes. Take them to the packaging material collection points designated by the local authorities.

The product is subject to change without notice. Please keep this manual properly.