Haier ES25V-M1 User manual

Service Manual

Model No:ES10V-M1

HαieгSERVICE MANUAL

Order No.WH0809S001V0

Electrical Water Heater

Model No.

ES10V-M1

ES15V-M1

ES25V-M1

WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public.

It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.

Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or

repair the product or products dealt with in this service information by anyone else could result in serious injury or death

Haier Group

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Service Manual

Model No:ES10V-M1

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Chapter 1: General Infromation

1-1. Table of Contents

Chapter 1: General Infromation............................................................................................................................................2

1-1. Table of Contents...................................................................................................................................................2

1-2. Notice.....................................................................................................................................................................3

Chapter 2: Product Feature ...................................................................................................................................................4

2-1. Features..................................................................................................................................................................4

2-2. Product Code illumination and Series Introduction...............................................................................................4

2-2-1.Model Identification....................................................................................................................................4

2-2-2. Series Introduction......................................................................................................................................4

2-3. Dimensions............................................................................................................................................................5

Chapter 3: Installation...........................................................................................................................................................5

3-1. Accessory parts......................................................................................................................................................5

3-2. Installation .............................................................................................................................................................5

3-3. Connection and use of safety valve .......................................................................................................................6

3-4. Attentions in Installation........................................................................................................................................6

Chapter 4: Operation .........................................................................................................................................................7

4-1. Operation Instructions ...........................................................................................................................................7

4-2. Attentions in Operation..........................................................................................................................................7

Chapter 5: Specifications and Circuit Diagram ..............................................................................................................8

5-1. Specifications.........................................................................................................................................................8

5-2. Circuit Diagram.....................................................................................................................................................8

Chapter 6: Usage, Cleaning and Maintenance ...............................................................................................................8

6-1. Usage.....................................................................................................................................................................8

6-2. Cleaning and Maintenance.....................................................................................................................................8

6-2-1. Statement .................................................................................................................................................8

6-2-2. Note............................................................................................................................................................9

6-2-3. External Cleaning.......................................................................................................................................9

6-2-4.Internal Cleaning.........................................................................................................................................9

Chapter 7：Trouble shooting................................................................................................................................................9

Service Manual

Model No:ES10V-M1

1-2. Notice

1. The water heater which is used in situation Ⅰmust be earthed and must be connected with the

independent single-phase three-plug connector which is also well earthed!

2. The safety valve of our company which is attached with the water heater must be installed on the inlet

pipe of the water heater!

3. The water heater which is used for the first time must be filled up with water before you switch on the

current!

4. If the temperature of the water you set is over 50℃, it may burn your body, so it must be mixed with

cold water before use!

5. Please don’t make the spray-head towards human body when you open or close the valve or adjust the

temperature of the water so as to avoid being burnt by a little stream of hot water!

6. The temperature of the pressure-relief vent of the safety valve is high, so it may scald your body!

7. This appliance is not intended for use by persons (including children) with reduced physical sensory or

mental capabilities, or lack of experience and knowledge, unless they have been given supervision or

instruction concerning use of the appliance by a person responsible for their safety.

Children should be supervised to ensure that they do not play with the appliance.

Correct Disposal of this product：

This marking indicates that this product should not be disposed with other household wastes

throughout the EU. To prevent possible harm to the environment or human health from

uncontrolled waste disposal, recycle it responsibly to promote the sustainable reuse of material

resources. To return your used device, please use the return and collection systems or contact

the retailer where the product was purchased. They can take this product for environmental safe

recycling.

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Service Manual

Model No:ES10V-M1

Chapter 2: Product Feature

2-1. Features

1. Safety:

High-quality heat proof stainless steel electric heating element, overtemperature protection;

overpressure protection of tank; safe and reliable.

“Safe Care” patented design together with the function of monitoring and displaying of live ground wire

has become a real safeguard for family safety.

2. Durability:

Full plastic shell, handsome and durable; enamel tank, with reliable quality and long operation life.

3. Convenience:

Adjustable heating temperature. Adjustable water temperature.

Adjusting range: water inlet temperature～75 .℃

4. Multiple usage:

Enclosed structure, capable of supplying water to multiple places like toilet, kitchen etc. Suitable for

family, enterprises, service trades like beauty care on hot water supply (not drinkable).

5. Nice molding, vertical type wall-mounting design, saving space.

The water heater you purchased is the improved model of the series product. Please operate

according to the user's manual.

2-2. Product Code illumination and Series Introduction

2-2-1.Model Identification

E S – □V-M1

1 2 3 4 5

2-2-2. Series Introduction

1: E- Electronic heater.

2: S- Storage water heater.

3:□- Capacity: 10L/15L/25L.

4: V- Vertical installation.

5: M1- Production serial number

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Service Manual

Model No:ES10V-M1

2-3. Dimensions

Fig. 1

Chapter 3: Installation

3-1. Accessory parts

PartName

Qty

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3-2. Installation

1. Installation must be made by installers of or designated by our company after-service department.

The water heatershall be wall-mounted.

2. Before installation, make sure water heater rear wires are fit firmly. Determine an installation location.

Make 2 holesΦ12mm, 65 mm deep in the wall with an impact drill according to installating dimension.

Insert and fix expansion hooks in corresponding wall holes. Lift the water heater. Make wall rack

corresponding to the hooks. Hang the ring of the extended connection line onto a hook and hang the

wall rack(see Figure 2). Install accessories such as safety valve, drain hose as shown in Figure 3. Use

sealing compound to prevent water leakage.

3. To facilitate installation and removal, it is suggested a G 1/2" movable nut be fitted at appropriate

locations on inlet and outlet pipes respectively. Find the location requiring hot water supply. Connect

inlet pipe, outlet pipe and city water pipe respectively to the use point.

4. The hot water pipe shall not be too long to reduce the heat losses.

5. Please reserve some space in installation for the future maintenance.

Product Model

Electric

water

heater(Set)

Safety valve

Drain hose

(Unit)

Expansion

hook(PCS)

User’s

manual

(Copy)

ES10V-M1 1 1 2 1

ES15V-M1 1 1 2 1

ES25V-M1 1 1 2 1

Service Manual

Model No:ES10V-M1

Fig.2 Fig.3

3-3. Connection and use of safety valve

1. The safety valve should be connected to the cold water inlet pipe. Please check carefully if the

direction is correct after installation. The correct direction of installation is that the arrowhead on the

safety valve should point to the water heater.

2. Please connect the drain hose to the safety valve. Connect one end of the hose to the safety valve

vent and the other end to the sewage drain for fear of indoor contamination. The hose can be cut short

or extended as necessary. The hose shall be installed as inclined downward.(see to Figure 4)

3. During heating, the water may drip from the discharge pipe of the pressure relied device due to

expansion and the pipe must be left open to the atmosphere. Check safety valve once a month as

follow: move the small handle of safety valve, if there's water flowing out, safety valve is normal; if

there's no water flow, please contact local after-sales service station.

4. The pressure relief device is to be operated regularly to remove lime deposits and to verify that it is

not blocked.

Fig. 4

3-4. Attentions in Installation

1. City water inlet pressure shall not be less than 0.05 MPa,Maximum pressure can not exceed

0.75MPa.

2. Electric water heater shall be installed indoors with ambient temperature above 0 . The pipes shall℃

be collectively laid. Hot water outlet shall not be too far from use points. In case farer than 8 m, hot

water pipe shall have a thermal insulation to minimize heat loss.

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The mounting wall shall be firm and reliable to support twice the weight of water heater full of water.

Non-load bearing walls or air brick walls must have corresponding protective measures like additional

Service Manual

Model No:ES10V-M1

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support, wall-through screws or back boards.

3. Electric water heater shall be located in a place easy for use, maintenance and with a floor drainer.

In case the tank or pipes leak, nearby or lower facilities shall not be damaged. The installation location

shall avoid being above toilet bowl, bathtub, washbasin or doorframe, where will cause a suppressed

or unsafe feeling to users.

4. Power socket for water heater shall be in a dry place free of water splash. (splash-proof box is

preferred).

5. Do not confuse inlet and outlet water pipes. Safety valve shall be installed at designated position

with no random modification.The safetyvalve pressure reliefvent shall keep open to the air.Do not block

it.

Chapter 4: Operation

4-1. Operation Instructions

1. For the first use after installation, due to there's no water within the tank, first the city water inlet valve

and mixing valve must be opened. Close the mixing valve when water flows out continuously from the

showerhead or other outlets (the tank is full). Check connections are free of water leakage, and insert the

power plug.

2. Turn the knob to set your desired water heating temperature, which can be steplessly changed

between cold water inlet temperature and 75 . In heating mode, heating lamp is lighted on. Normally℃

the knob shall be positioned at highest temperature. This machine has a thermostat function, which

automatically switches off the water heater when temperature reaches the setting value, and switch on

again when water temperature decreases to certain value.

3. City water pressure ≥0.80 MPa will cause much water flowing out from safety valve pressure relief

vent. This is due to too high water pressure. Please ask after-sales service for correction.

4-2. Attentions in Operation

1. To avoid causing machine troubles, do not connect power before tank is full of water. Adjust a suitable

temperature before use, for water temperature above 50 may burn your s℃kin.

2. This product is closed water heater, which can supply hot water through pipe connection to several

points like bathroom (bathtub, washbasin, shower head) and kitchen.

3. Heating adjustment can be made flexibly all year round adapting to climate changes. In long-term

out-of-use or maintenance, you can close city water pipe valve, open mixing valve to hot water range,

and move up safety valve handle to drain the tank. To avoid injury, before next use, it is suggested to first

open hot water valve before switching on the water heater, exhausting gas possibly retained in the

pipeline. In this case, no smoke or fire is permitted near the open valve.

4. Carefully check and confirm all parts are in good condition.

5. Provided hot water quantity can meet use demand, temperature setting shall be possibly low. It can

minimize heat dissipation, high-temperature corrosion and sedimentation, ensuring a longer service life.

6. Regularly ask servicemen to make safety inspection, remove sediment on heating elements, and

check consumption of anode bar. Too much consumed anode bar shall be replaced.

Service Manual

Model No:ES10V-M1

Chapter 5: Specifications and Circuit Diagram

5-1. Specifications

Rated

voltage

Frequency Power

Rated

pressure

Waterproof

grade

Tap water

pressure

230V～

50Hz 2000W

0.80MPa IPX4

no less than

0.05MPa

5-2. Circuit Diagram

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Chapter 6: Usage, Cleaning and Maintenance

6-1. Usage

1. After installation, as the tank is empty in the first usage, be sure to open the tap water inlet valve and

mixing valve. When the tank is filled with water, and the shower nozzle or other water outlet keeps water

outputting, please close the mixing valve, check if there's water leakage at each joint, and plug the power

plug.

2. Turn the knob as per the needed water temperature. The mark of knob increases from water inlet

temperature to 75℃. You can set heating temperature steplessly. The heating indicator will shine under

heating mode. Generally the knob should be set to the highest scale. The water heater can regulate the

temperature automatically. The power will be switched off automatically when the set temperature is

reached, and will be switched on automatically when the temperature drops to certain level. As it

continues heating, you can use hot water as well.

When the tap water inlet pressure arrives or exceeds 0.80MPa, the drain hose of safety valve will

discharge large amount of water. It is due to extra high water pressure. Please contact the after service for

disposal.

6-2. Cleaning and Maintenance

6-2-1. Statement

This water heater shall only be repaired and maintained by qualified servicemen. Improper maintenance

may cause severe injury or damage. Before opening or repairing water heater, please do pull out the

power plug.

Service Manual

Model No:ES10V-M1

6-2-2. Note

Before asking for service, please refer to troubleshooting section to resolve easy problems.

6-2-3. External Cleaning

Disconnect power supply before cleaning. Gently wipe with wet cloth dipped with a little of mild detergent.

Do not use gasoline or other solvents. Finally dry with dry cloth. Keep water heater dry. Do not use

cleansers containing grinding agent (e.g. toothpaste), acids, chemical solvents (e.g. alcohol) or polishers

to clean.

6-2-4.Internal Cleaning

To ensure high working efficiency, heating elements and tank liner of water heater shall be cleaned once

in three years. Take care not to damage protection layer on heating elements and tank liner inner surface.

According to different local water qualities and use habits, magnesium rod shall be periodically replaced.

If maintenance is needed, please contact local service station.

Chapter 7：Trouble shooting

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Sincere Forever

Haier Group

Haier Industrial Park, No.1, Haier Road

266101, Qingdao, China

http://www.haier.com

Printed in China

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