Haier FCD-HM50 Operation Instruction Manual

Brand: Haier

Model: FCD-HM50

Type: Operation Instruction Manual

This manual is also suitable for

Silver Walrus

Haier Household Electric Water Heater Operation Instruction

FCD-HM40GI(E)

FCD-HM50GI(E)

FCD-HM60GI(E)

FCD-HM80GI(E)

FCD-HM100GI(E)

z Please carefully read this operation instruction prior to the use of this unit.

z Please store these operation instructions properly for future reference.

Distinguished Haier User:

Thanks for choosing and using a Haier electric water heater.

Haier products have high quality and excellent performance. For convenience of use, please carefully read this

instruction manual and follow the steps carefully. Please store this instruction manual properly after use. If you

have questions during operation, please contact your local after-sales service department. We are always ready to

provide service to you.

Due to product improvements, it is possible that the Haier electric water heater you have purchased is inconsistent

with that of illustrations in this instruction manual. We are sorry for any inconvenience this may cause.

 Safety Warning Expert

Logo of a Haier Safety

Water Heater

This marking is the exclusive marking of “Safety Warning Expert” of the Haier

Water Heater Company. The interior uses the patent technology, which will

constantly monitor if the earth wire of your residence is live while ensuring you can

bathe safely. If you finds that this marking is illuminated, it means that your family’s

earth wire is live (if the earth wire is not connected well, it will be live

simultaneously), you should immediately stop the use of this unit and remove the

plug from the power point. Meanwhile, do not touch any casing of electric

appliances within your home and immediately contact the after-sales service

department or real estate company and request a professional electrician conduct

system detection. “Safety Warning Expert” will become the safety bodyguard for

electricity use in your home.

Content

Product Features 1

Electric Diagram 1

Technical Data

Introduction to Appearance and Components 2

Technical Parameters 2

Safety Points of Attention 3

Location Environment 4

Instructions Prior to Use

Packing List 5

Special Notices 5

Installation Guide

Installation Points of Attention 6

Installation Method 6-8

Operation Guide

Introduction of Control Panel 9

Operation Sketch Map 9

Operation Method 10-15

Operation Points of Attention 15

Cleaning & Maintenance of Unit 15-16

Keys to Difficulties

Keys to Difficulties 16

Appearance, color or figure of the water heater refers to the actual unit.

Product Features · Electric Diagram

 Product Features

1. Hi-tech

Full computer control and display screen indicates the actual water temperature and set temperature, clock,

and working status.

If a fault occurs, it will automatically cut off power, and the display screen will indicate a fault code.

The intelligent heating function embodies a more user-friendly design.

2. Safety

Quality imported heat-resisting stainless steel electrothermal elements make it corrosion-resistant and more

reliable. Such functions as fuzzy control, over-temperature protection, interior shell over-pressure protection,

electricity leakage protection, “shockproof wall” patented design, and “monitoring indication of live earth

wire” make this unit safety bodyguard for electricity use in your home.

3. Durability

The exterior shell is specially treated, and it is artistic and durable.

The interior shell adopts three-layer enamel technology, and the quality is higher.

4. Energy Saving

This unit adopts integral polyurethane foam to preserve heat and save energy. This unit can manually set two

levels of reservation times of utilization of water, so it is convenient and energy saving. The functions of night

power and medium-temperature heat preservation can be chosen randomly. This unit adopts prompt-heating

design, so it is rapid and energy saving.

5. Convenient Operation

The heating water temperature can be set and adjusted between a range of 35℃～75℃ with intervals of 5℃.

The outlet temperature can be adjusted randomly at the range of inlet temperature ～75℃, and the operation

is simple and flexible.

This unit adopts a prompt-heating design and top heating technology, which can meet the demand for hot

water instantaneously.

Prompt-heating type and water storage type are combined into one unit, and it can be chosen willfully and can

simultaneously meet the demand for hot water of many people.

This unit has a drain opening to facilitate the periodic cleaning of interior shell to obtain high quality water.

6. Power-failure Memory

The computer panel is of patented design. This unit will automatically keep the set information in memory

before a power failure, and it will directly return to the previous working status after the power comes back

on.

7. Multipurpose

This unit has an enclosed structure and it can provide water for bathroom and kitchen simultaneously. (The

outlet water is not suitable for drinking)

8. Horizontal installation and concealed shockproof wall installation design; free choice of unit control or line

control.

This kind of water heater is a function-improved product of this series of products, and please use this unit

according to the indications shown in this operation manual.

 Electric Diagram

Display Panel

L: Live Wire (Brown)

: Ze

o Line (Blue); E: Earth Wire

(Double colors of yellow and green)

MT1/MT2: Manual Reset

Temperature Controller

EH: Heating Tube; RT: Sensor

Introduction to Appearance and Components · Technical Parameters

 Introduction of Appearance and Components

 Technical Parameters

Installation Conditions

Type

Capacity

(L)

Rated

Electricity

Rated

Power (W)

Rated

Pressure

(MPa)

Rate

Temperature

(℃)

Waterproof

Level

Net

Weight

(kg)

(mm)

Wire

Requirement

(mm

)

Socket

FCD –

HM40GI(E)

40 220V～

/50Hz

3000

(Prompt)

1500

(Storage)

0.75 75 IPX4 20 714 409 100 359 ≥2.5 16A

FCD –

HM50GI(E)

50 220V～

/50Hz

3000

(Prompt)

1500

(Storage)

0.75 75 IPX4 22 666 494 100 409 ≥2.5 16A

FCD –

HM60GI(E)

60 220V～

/50Hz

3000

(Prompt)

2000

(Storage)

0.75 75 IPX4 25 770 494 100 409 ≥2.5 16A

FCD –

HM80GI(E)

80 220V～

/50Hz

3000

(Prompt)

2000

(Storage)

0.75 75 IPX4 29 876 530 100 432 ≥2.5 16A

FCD –

HM100GI(

100 220V～

/50Hz

3000

(Prompt)

2000

(Storage)

0.75 75 IPX4 34 1042 530 100 432 ≥2.5 16A

Note: The allowable tolerance range of the above parameters (dimensions and weights) is ±10%.

Elevation

Sectional View Side View

–

Inlet Tube; B

–

Outlet Tube; C

–

Heating Tube; D

–

Enamel Interior Shell;

E – Magnesium Bar; F – Wall-mounted Bracket

Elevation

Side View

G – Drain Opening

Safety Points of Attention

z Check if ammeter and

wires are in

conformity with rated

current of the water

heater. Request a

qualified electrician to

check if necessary.

z This water heater uses

AC 220V/50Hz

power. It uses an

independent socket (it

is prohibited to use a

multipurpose socket), and conducts reliable

earthing, and the socket quality must meet the

national standards. Remove the metal sheet on

power plug to prevent fire accidents arising due to

stains on the metal sheet.

z Don’t use electric

apparatuses if the

wire is damaged and

the power socket and

plug slack,

otherwise, it may

cause such accidents as electric shock, short

circuit or fire. Please confirm if the power plug

is closed connected with the power socket.

z The power socket of

the water heater must

be installed in a dry

place where water

cannot spray it. Don’t

insert and remove the

power plug with wet hands, otherwise, such

accidents as electric shock and injury may occur.

z After installation and

before the first use,

firstly fill with water

and then connect the

power. If the power is

connected under the condition that the vessel is

not fully filled with water, the heating tube will

overheat, which may result in an accident.

Operation by a child should be supervised by an

adult.

z Please don’t point the

shower nozzle at the

body when turning the

water on to prevent

injury from scalding.

z In cold areas, if this

unit is not to be used

for a long time in

winter, please lift the

handle of the safety

valve and drain out

the water to prevent the water heater from being

damaged due to water freezing.

z If the power wire of

the electric water

heater is damaged, it

must be replaced

with a special wire

(provided by manufacturer) by after-sales

serviceman. No one is allowed to conduct the

dismantlement, except for professional technical

serviceman. In addition, don’t place flammable

objects near water heater.

The water temperature value indicated in the display screen is the water temperature around the detection

points. The outlet temperature of the water heater is normally higher than the temperature indicated in display

screen. Prior to use, you should drain the cold water first and then adjust the water temperature value you desire

to avoid scalding. During operation, the water temperature value indicated in the display screen is also the water

temperature around the detection points, is not the actual outlet temperature, and please don’t directly drain the

hot water.

The design of this unit adopts the “Shockproof Wall” patent technology of our company. In the normal situation

that it is connected with civil electricity, this unit will also effectively ensure your operation safety through the

technology filter of “shockproof wall” of this unit, even the in occurrence of deteriorated that exterior is

mistakenly connected to the civil electricity with earth wire that will result in a live earth wire. When you

perceive that there is a sensitive current, please remove the power plug, and immediately notify the after-sales

service department of our company for maintenance. Don’t dismantle this unit by yourself.

Symbols Description

Don’t operate! If it is mistakenly used, it may result in bodily injury.

You must follow the instruction to operate this unit. If it is mistakenly used, it may result in bodily injury or

property loss.

Location Environment

z Don’t place this unit in such environments that

are too cold and can be frozen. If it is frozen, the

vessel and water tube may break, which may

result in scalding and leakage.

z Don’t install this unit outdoors.

z Don’t install this unit on the ground.

z This unit must be mounted on a solid and secure

wall.

z Don’t install this unit in a place where the water

can’t be drained.

z If this unit is to be connected with a drain pipe,

connect the drain pipe with the opening of the

sewage pipe to avoid sewage spraying indoors.

The machine-configuration pipe of this unit is an integral part of the “shockproof wall” product, do not

dismantle it, otherwise our company will not take responsibility for any injury resulting from that.

Symbols Description

Don’t operate! If it is mistakenly used, it may result in bodily injury.

You must follow the instruction to operate this unit. If it is mistakenly used, it may result in bodily injury or

property loss.

Packing List · Special Hints

 Packing List

Electric Water

Heater

Safety Valve

Drain Pipe

Expansion Bolt

Expansion Hook

Operation

It ti

Wall-mounted

Sh t

Small-part

Elbow

Flow Sensor

Washer

FCD - HM40GI (E) 1 1 1 2 2 1 1 1 2 1 2

FCD – HM50GI (E) 1 1 1 2 2 1 1 1 2 1 2

FCD – HM60GI (E) 1 1 1 2 2 1 1 1 2 1 2

FCD – HM80GI (E) 1 1 1 2 2 1 1 1 2 1 2

FCD – HM100GI (E) 1 1 1 2 2 1 1 1 2 1 2

 Special Notices

In order to ensure the correct and safe use of the water heater, here our company seriously notifies the users to

contact the professional service provider designated by Haier to conduct installation and service. For the incorrect

installation of this water heater, our company will not bear any liability.

z Please ensure that the water is filled fully prior to powering it on, otherwise it may result in the fault of the

heating tube. Please ensure the power socket is in conformity with national standards and was reliably

connected to the earthing wire. It is strictly prohibited to use the water heater without reliable earthing.

z This electric water heater is equipped with a safety valve. For the safety of operation, changing the

installation position willfully is not allowed and it is prohibited to block the outlet of the safety valve.

z When ambient temperature is under 0℃, it may cause the freezing of the piping, which will result in the

breakage of piping and unavailability of use of this unit. Therefore it should be protected by emptying the

water inside the water tank. When the water heater is to be not used for over one month, please empty the

water inside the water tank and remove the power plug.

z If the water heater is soaked by water, you should have a technician approved by our company checked before

you use it again.

z Don’t place such inflammable articles as gasoline near the water heater, otherwise it may cause a fire

accident.

Componen

tName

QTY

Product Model

Installation Points of Attention · Installation Method

 Installation Points of Attention

z Reserve a certain space during the installation of water heater to facilitate future maintenance. If the water

heater is inlaid in the pinch plate during installation period, the pinch plate at right side should be removable

to facilitate the dismantlement of the plastic cover for future maintenance.

z Ensure the inlet pressure of tap water is not less than 0.05MPa, and the maximum pressure is 0.75MPa.

z The electric water heater shall be installed indoors where the ambient temperature is over 0℃, and the

pipeline should be laid out correctly. The distance between the outlet of hot water and using point of hot water

should not be too far. If this distance is over 8m, heat preservation treatment should be made on hot water

pipeline to reduce the loss of heat.

z The wall to mount the water heater should be solid and secure, and it should be able to bear two times the

weight of the water heater filled with water. If it is a non-load bearing wall or a hollow-brick wall, take the

corresponding protection measures such as additional installation of a bracket, use of wall screw, or

installation of backing plate.

z The installation position of the electric water heater shall be chosen at places where is convenient for

operation, maintenance and there is a floor drain. If the water tank or water tube leaks, it should not cause

damage to the surroundings or underside facilities. The installation position should not be in the proximity of

a closet, bathtub, washing basin, and door frame, which may produce a depressing or unsafe feeling in the

user.

z Don’t connect the inlet & outlet tubes inversely. The safety valve should be installed at the designated

position, and it may not be changed willfully. The exhaust pipe should reach outside and not be blocked.

z Note: Due to the increased power of this kind of electric water heater, it is suggested that you should use a

power socket matching the plug of this unit (16A) during installation in order to ensure the normal working of

this unit and safety of your home.

 Installation Method

z The installation shall be made by the installation

staff belonging to the after-sales service department

of our company or the designated installation staff.

z The water heater adopts wall-mounted type

installation.

Vo l u m e

Fig 1

Installation Method

z Prior to installation of the water heater, firstly ensure

the back wiring installation of water heater is secure.

Pre-install a safety valve and flow sensor as well as

one elbow thereof, then dismantle the bottom cover,

install the elbow equipped with safety valve and the

other elbow on the inlet & outlet pipes, respectively

(the handle of the safety valve is installed at one side

near the outlet pipe, as shown in Fig. 2), and insert the

terminal of the flow sensor into the socket of the flow

sensor. After the installation is finished, tighten the

drain pipe of the safety valve, and use sealing tape to

prevent leakage. Please increase the washer to the

articulated joint of the elbow during the installation of

the elbow.

z After the above installation is completed, determine

the installation position of the water heater. According

to dimensions shown in Fig. 1, use an electric drill to

drill four Φ12mm holes with 65mm depth in the wall,

insert the expansion hooks and expansion bolts into the

corresponding wall holes, secure the hooks and bolts,

raise the water heater, put the wall-mounted bracket on

the hooks and bolts, install the flat washers, back

wiring of water heater, and nuts onto the bolts in the

proper order (as shown in Fig. 3), and tighten the nut

and check if it is secured.

z In order to facilitate the installation and dismantlement

of water heater, it is suggested to additionally install

G1/2” movable nuts at the proper position of the inlet

& outlet pipes of the water heater, respectively.

Determine the position of water supply, and connect

the inlet & outlet water pipes and tap water pipe with

water consumption point, respectively. (Refer to Fig.

4) Fill the interior shell with water and check if the

water circuit leaks. It must be repaired if there is any

leakage. Place the signal wire into the decoration cover

of shockproof wall if there is no leakage, and re-install

the bottom cover.

z Note: Remove your hands until it is certain that the

wall-mounted bracket is mounted securely on the hook

to prevent the falling of the water heater, which may

result in bodily injury or property damage.

Front of the

Water Heat er

Back of the

Water Heater

Fig. 3

Fig. 2

Fig. 4

Inlet of Cold Water

Mixing Valve

Sprayer

Outlet of

Hot Water

Installation Method

 Connection and Operation of the Safety Valve

z Refer to the arrow direction shown on safety valve (the

arrow points to the water heater), and install the safety

valve with rated pressure of 0.75MPa (and with a joint of

G1/2”) on the inlet pipe. During the heating period of

power on of water heater, the relief hole of the safety

valve will release a small amount of water. It is a normal

phenomenon resulting from thermal expansion of water

inside this unit. Keep the relief hole to open to the outside

and do not block.

z Note: This kind of unit needs a drain pipe for the safety

valve, and the method follows: tighten one side of the

drain pipe onto the relief hole of the safety valve, the

drain pipe can be shortened or can be extended at your

discretion based on the actual situation, and connect the

other side of the safety valve with the opening of the

sewage to avoid spraying sewage indoors. The drain pipe

connected with the safety valve should be installed

obliquely maintaining a downward angle in an

environment free of frost.

z Turn on the power and try the unit after it is confirmed

that it is filled with water and there is no leakage at each

joint, and the power is in conformity with requirement.

Fig 5

 Wall-mounted Installation Method:

The water heater is machine-controlled device before delivery, and users can adopt the following method to

change to a line-controlled installation:

z Firstly, push out the bottom cover in a the direction away from transparent decoration accessories to

dismantle the bottom cover, remove the display panel, disconnect the signal wire bundle, and choose a proper

position to conduct a line-controlled installation according to the length of the signal wire.

Determine the installation position of line-control box, use two Φ4mm screws and matching plastic

expansion tubes to fix the wall-mounted plate onto the wall. Insert the control panel box onto the

wall-mounted plate based on the matching way of wall-mounted plate and bottom box of the control panel.

Re-install the bottom cover after the above installation is completed.

z Note: The installation process of line-control is quite complicated, so it is suggested that the user should not

change the installation, and it should be done by professional serviceman who has received training to avoid

bodily injury or property damage.

Fig. a: Wall-mounted Plate Fig. b: Bottom Cover

Small Handle

of Safety Val

Relief Hole

Outlet of Hot Water

Inlet of Cold Water

Introduction of Control Panel · Operation Sketch Map

 Introduction of Control Panel

1. Standard Heating Symbol 2. Reservation Symbol

3. Reservation 1 Symbol

5. ON/OFF Button

7. Mode Button

4. Clock Digital Display

6. Selection Button of Heating

Method

9. Digital Increase Button of Clock and Temperature

10. Digital Decrease Button of Clock and Temperature

11. Reservation 2 Symbol

12. Intelligent Symbol

13. Night Power Symbol

14. Medium-temperature Heat Preservation Symbol

15. Digital Display of Setting and Actual Temperature

16. Working Mode Indication Area

 Operation Sketch Map

Set the maximum heating temperature

∧.∨

Prompt/Stora

ge Button

Power On

ON/OFF Button

Press Mode

Button at

Water

Storage

Mode

Prompt-heating: Top heating, Instant Heating

Water Storage Heating: You can chose between Standard / Medium-temperature Heat

Preservation / Night Power / Reservation / Intelligent

Standard

Hour digital adjustment of clock

Press setting

utton

Minute Digital Adjustment of clock

Medium-temperature

Heat Preservation

ight

Power

Press setting

button

Hour digital adjustment of clock

Minute Digital Adjustment of clock

Preset 1

Press setting

button

Hour setting of preset 1

Minute setting of preset 1

Press ∧ or ∨

Correct hour digital of preset 1

Correct minute digital of preset 1

Preset 2

Hour setting of preset 2

Minute setting of preset 2

Correct hour digital of preset 2

Correct minute digital of preset 2

Press ∧ or ∨

Preset 1 + Preset 2

Intelligent

Standby

Press setting

button

Repeat steps of preset 1 and preset 2

Press setting

button

Operation Method

After the installation is completed, for the first use of this unit, open the inlet valve and outlet valve of the tap

water, and close the outlet valve after the outlet opening flows with water continuously (which means the vessel is

filled). Check if there is any leakage at each joint, and insert power plug.

1. Startup

This kind of unit has a power-failure memory function, this unit has a memory storage function of such

information as set heating temperature, heating power, clock and current working status. When connecting with a

power supply, all symbols on display screen will be indicated for 2 seconds, and the system will enter standby

status (at that time it will only indicate the clock, and other buttons are disabled, except the ON/OFF Button) or

some working status under water storage mode before previous power-failure after that, and the corresponding

indicative symbols will be illuminated.

For example, this unit is in standby status as shown in Fig. 6, and only the ON/OFF button is enabled at that time.

2. Selection of Running Mode

Under startup status, for each press of “Prompt/Storage” button, this unit will be toggled between prompt heating

and water storage.

1) Water Storage Type

Under water storage mode of startup status, if the “water storage type” is illuminated, this unit will imply the

heating power is 2000W (the implied power value of 40/50L unit is 1500W). for each press of the mode button,

the system will cycle between the statuses of standard (indicates standard symbols), medium-temperature heat

preservation (indicates medium-temperature/heat preservation symbols), night power (indicates night power

symbol), preservation 1 (indicate preservations and symbol ①), preservation 2 (indicates preservation and symbol

②), preservation 1 + preservation 2 (indicates preservation and symbols ①.②) and intelligent (indicates

intelligent symbol), and the user can choose any working mode as the current working method of the system

according to demand. The corresponding setting content can be executed only after the current working method

has been chosen.

For example, the clock time is 07:00, setting temperature is 65℃ (the setting temperature and the actual

temperature will be indicated with alternative flashing), and the water use time of set preset 1 is 10:00. If you want

to use hot water at 10:00, this unit will automatically heat the water to the set temperature before 10:00. Otherwise

(the working mode shown in Fig. 7 is night power), the function of preset 1 will not be executed. At that time, use

the mode button to select preset and symbol ①, and the function of preset 1 can be executed, as shown in Fig. 8.

(Fig. 6)

Water Storage Type

Setting

ight

Power

Preset

Operation Method

2) Prompt Heating Type

For saving waiting time of your bath, increasing heating speed of water heater, and enlarging outlet of hot water of

water heater, it is suggested that you select prompt heating mode to use this unit according to the following way in

different seasons:

z Operation in summer: Because the water temperature of tap water in summer is relatively higher (around

28℃). During the bathing period, you can directly select the prompt heating mode to heat the water, which

will save time while saving energy.

z Operation in spring, autumn and winter: During these three seasons, the temperature of tap water is relatively

lower, while the demand of hot water is relative higher during the bathing process, you can adjust the water

heater to “medium-temperature heat preservation” of “water storage type” or “preservation” mode to preheat

water. When the temperature of hot water is at a range of 35℃～40℃, you can use the “prompt/storage”

button to adjust the working mode of this unit to prompt heating mode to take your bath, thusly meeting your

demand of hot water while greatly shortening waiting time of your bath.

In addition, when there are many people to take bath, you also can adjust the water heater to “water storage

type” mode to preheat water, and then start the prompt heating mode to take a bath.

z Note: At the initial stage after the startup of prompt heating mode (the first 1～2min), the temperature of

outlet water will have minor variations. Please firstly adjust the water to the proper temperature and then take

bath in order to ensure the comfortableness of your bath.

 Conversion Method of Prompt Heating Mode

Under any water storage type of startup status, press the “prompt/storage” button to enter prompt heating mode,

“prompt heating type” will be illuminated, the time will count down with the limitation of 30 minutes, and the

display panel will indicate the decrease in the range of 30:00～00:00. If the system detects that the water flow is

greater than or equal to 2L/min, this unit will execute heating in the implied power of 3000W, and the “heating”

symbol will be illuminated. Within the working time period of prompt heating (30min), if the system hasn’t

detected water flow (e.g., the outlet valve is closed) or if the water flow is less than 2L/min, the working of the

heating tube shall be immediately stopped, and this unit will be under heat preservation status, the “heat

preservation” symbol will be illuminated, the count-down will continue. After the finish of the count down, it will

return to the previous working status (some water storage type prior to entrance of prompt heating mode. You can

use the “prompt/storage” button to re-enter into prompt heating mode.

3. Temperature Setting

Under status of startup (the display screen has no any digital flashing indication), press ∧ or ∨ to enter

temperature setting status to set the temperature (digital readout flashing quickly). The temperature value is

varied within the range of 35～75℃ with intervals of 5℃. Under standard mode, you can directly use ∧ or

∨ to adjust and set temperature; and under medium-temperature heat preservation mode, the implied

maximum heating temperature of this unit is 40℃, which can’t be adjusted.

4. Correcting the Clock

The clock is a twenty-four hour system, 60 minutes, and the second digit will be indicated flashing and the

second digital will travel.

Prompt Heating Type

Actual

Heating

(Fig. 9)

Operation Method

For example: To adjust the time to 11:29

After the startup of this unit, under standard and night power mode, press setting button to enter into clock

adjustment status, the hour digit of the clock will flash, press ∧ or ∨ to adjust the value to 11, press setting

button again, the minute digit of clock will flash, press ∧ or ∨ to adjust the value to 29, press setting button to

confirm the current setting, or the system will automatic confirm six seconds after non-operation and exit setting

mode (as shown in Fig. 10, this unit is under heating/heat preservation status of standard mode).

For example: As shown in Fig. 11, this unit is under standard mode of water storage type, and the status of

heating/ heat preservation of setting temperature of 65℃.

5. Standard Mode Setting

Under water storage mode after the startup of this unit, refer to the method mentioned in the second clause, press

the mode button to enter into standard heating/heat preservation working mode, and at this moment the standard

symbol will be illuminated. This unit will automatically start heating or enter heat preservation mode according to

setting requirement. Meanwhile this unit has an automatic thermostat control function, and it will enter heat

preservation status after the heating reaches the setting temperature. Under heat preservation status, when the

actual water temperature is less than 5℃, the setting temperature (at this moment the setting temperature is less

than 55℃) or 10℃ than the setting temperature (at this moment the setting temperature is greater than or equal to

55℃), the unit will automatically reheat to the setting temperature and hold such temperature, and the cycle is like

this.

6. Medium-temperature Heat Preservation Setting

Under water storage type mode after the startup of this unit, refer to the method mentioned in the second clause,

press mode button to enter the working mode of medium-temperature heat preservation (indicate the selected

medium-temperature/heat preservation symbol), at this moment the water heater will automatically select the most

energy-saving heat preservation temperature [at normal times, such temperature can meet the demands of hot

water with smaller amount, and it is not suitable to take bath. It shall exit the medium-temperature/heat

preservation status during bathing period, and press the mode button to enter into standard heating/heat

preservation mode, or use prompt/storage button to convert the working mode of this unit to prompt heating

(“prompt heating” will be illuminated), and at this moment this unit can heat the water to the setting temperature

within short time] at the range of 35℃～40℃ according to the temperature difference of the water temperature

and ambient temperature. Under medium-temperature/heat preservation mode, when the water temperature is

reduced to 35℃, this unit will begin reheating.

For example, as shown in Fig. 12, the system is in medium-temperature/heat preservation mode, at this moment

the actual water temperature is 52℃. When the actual water temperature is reduced to 35℃, the unit will

automatically reheat to 40℃, and meanwhile enter into heat preservation status, and the cycle is like this. In the

mode, the unit will imply the maximum heating temperature is 40℃, which can’t be adjusted.

Prompt Heating Type

Actual

Heating

Standard

(Fig. 10)

Prompt Heating Type

Heating

Standard

Setting

(Fig. 11)

Water Storage Type

Actual

Heat Preservation

(Fig. 12)

Operation Method

7. Night Power Setting

Under water storage mode after the startup of this unit, refer to the method mentioned in the second clause,

continuously press the mode button, the unit will enter the working mode of night power (indicating the night

power symbol). If you want to use hot water in the morning, you can adjust the working mode of this unit to night

power, the unit will conduct heating/heat preservation at its default time period (startup at 00:00 and power off at

06:00), and the maximum heating temperature can be set and adjusted manually. In the mode, pressing the setting

button can be used to adjust theclock.

In addition, according to the provision of electricity consumption regulation at some areas, the electric rate at

nighttime is less than that of daytime. The selection of night power working mode will be more convenient and

economical.

Note: When you select the night power function, you should adjust the time of the water heater to local time. If the

time is inaccurate, it may result in the increased usage of electricity during peak times. (This clause only applies to

such areas practicing variable electricity rates)

For example: In water storage mode after the startup of this unit, press the mode button to select night power

working mode. When the clock on the computer panel indicates 00:00, this unit will automatically start heating,

and will enter into heat preservation status after the set temperature is reached, and the unit will conduct automatic

thermostatic control during the period from 00:00 to 06:00. (As shown in Fig. 13)

8. Intelligent Heating Function

When using the intelligent heating function, the system will conduct an analysis, processing and recording water

usage habits of the user during one week, and the system will conduct advance heating according to the recorded

water use time. In water storage type mode after the startup of this unit, continuously press the mode button to

enter intelligent working mode, the intelligent symbol will be illuminated, the system will enter into heating status

with the event of the first heating time after the current time, and the maximum heating temperature can be set

manually. During non-heating periods, the system will be in standby status, the clock and intelligent symbols will

be illuminated, and the unit will automatically start heating after the heating time is reached. If you want to leave

intelligent heating mode to enter other modes, you can activate the interface through any button on the control

panel, and use the mode button to toggle the modes.

Notes:

1) Under water storage type mode after the startup of this unit, intelligent heating function will automatically

memorize your water use habit. If you have taken bath during one week, the system will analyze and

memorize your habits of water usage, and will conduct advance heating before the same period of the next

week.

2) Only in the intelligent mode, can the intelligent functions be executed.

9. Reservation Time Setting

Reservation means that the system will automatically calculate the required time to heat to the setting temperature

according to default heating power of 2000W/1500W (40L and 50L units), and determine the starting time of

heating of this unit, and it will automatically heat to the set temperature before the set time of water use. Two

sections of reservation (reservation 1 + reservation 2) mean that the unit will conduct heating two times according

to setting requirements. The unit can manually set two levels of reservation times of water use, and the setting

time is based on the clock time on the computer panel. This unit will imply the reservation 1 of water use at 06:00,

and the reservation 2 of water use at 17:00.

Water Storage Type

Actual

Heat

Preserv

ation

(Fig. 13)

ight

Power

Operation Method

For example, as shown in Fig.14, to set reservation 1 of water use to 10:30.

Under water storage type mode after the startup of this unit, continuously press the mode button to enter the

working mode of reservation 1, the reservation symbol and figure will be illuminated simultaneously, press setting

button to enter the hour setting status of reservation 1, the hour digit of reservation 1 will flash, and press ∧ or ∨

to adjust to 10:00. Press setting button to confirm the setting and enter into the minute setting status of reservation

1. Press ∧ or ∨ to adjust the value to 10:30. At this moment you can press setting button to confirm the current

setting, or this unit will conduct automatic confirmation and exit the setting about six seconds after non-operation.

The time setting process of reservation 2 is similar to that of reservation 1, namely use mode button to adjust the

working mode of this unit to the working mode of reservation 2, and use setting button to conduct the time setting

of reservation 2.

Note: If this unit is under reservation status, and a large amount of hot water is demanded after the heating of

water has started, it will result failure reach to setting temperature after the water heater reaches the reservation

time. The unit will automatically delay the heating for half an hour and it will stop after that. If the actual water

temperature has reached setting temperature before the reservation time, and meanwhile it hasn’t reached

reservation time after the actual water temperature is reduced, this unit will conduct the calculation of heating time

again, and determine if it needs to conduct heating again. In like manner, if the voltage of electric network is too

low, the heating power of water heater will not reach 2000W/1500W, and it will result failure to reach the set

temperature value after the water heater has reached reservation time, this unit will automatically delay the

heating for half an hour and it will stop after that.

10. Standby

When bathing is finished, directly press the ON/OFF button to enter into standby status.

 Warming Hints:

A. Under a specific mode after the startup of this unit, press setting button to set ON/OFF time of each mode,

and adjust the time through ∧ or ∨. If it is in prompt heating mode, you can press setting button to adjust

hour and minute of clock; and under reservation mode, you can press the setting button to set the reservation

time. The setting button is disabled under medium-temperature/heat preservation and intelligent modes.

B. This unit has many safety protection devices, such as electricity leakage protection, over-temperature

protection, and short-circuit and open-circuit protection sensors, and it can realize full-circuit disconnection

and indicate fault codes. All fault protections are irrecoverable protection, and you must contact the after-sales

service department.

C. This electric water heater has a power-failure memory function, there is no need to reset heating power,

heating temperature, clock, and working mode after a power failure, and it will directly enter the same

working status of water storage type before the power failure.

D. In intelligent non-heating status, this unit is under standby status, and you can activate the interface through

any button on the control panel.

E. In order to ensure the normal use of this unit, it is suggested that it should be kept away from any source of

disturbance (e.g. mobile phone). If there is any disturbance, this unit will enter anti-disturbance protection

status, and it will automatically resume one minute after the source of disturbance has been removed.

Water Storage Type

Setting

Heat

Preserv

ation

(Fig. 14)

Reservation

Operation Method · Operation Points of Attention · Cleaning and Maintenance of Unit

 Operation Method

F. In cold areas, when the ambient temperature is less than 20℃ below zero, this unit will automatically turn off

power and conduct protection, the display screen will indicate a flashing E3, please disconnect the power

supply. When the ambient temperature is higher than 19℃ below zero, the E3 will disappear after this unit is

turned on.

G. In water storage mode, according to your habits of water use, under the condition of meeting demands for hot

water, in order to help you to save energy, it suggested that you set the water heat to around at 45℃ in

summer; and 65℃ in winter. If there many people to take bath, adjust the setting temperature according to the

actual conditions (the maximum setting temperature is 75℃).

 Operation Points of Attention

1. Don’t connect it to the power supply before the interior shell is filled with water, in order to avoid damage to

unit.

2. Prior to use, adjust water temperature to the proper temperature to prevent scalding. Water temperature of

over 50℃ may cause scalding.

3. During the operation process, check the safety valve once a month. The method is as follows: Stretch out your

hand into the rear side of the bottom cover (be careful not to injure yourself), pull the small handle of the

safety valve at the side of inlet pipe. If water flows out, the unit is under normal working conditions; and no

water to flows out, please contact your local after-sales service department. If there is any damage, please

replace the safety valve with same size.

4. This product is an enclosed water heater, and it can provide hot water for many points through the connection

of pipelines, such as a bathroom (bathtub, washing basin, and sprayer), and kitchen.

5. During the four seasons of one year, you may adjust the setting heating in a flexible way according to the

change of temperature. If the water heater is to be not used for a long time, you can close the valve of the

water pipe, open handle of the safety valve, push the mixing valve of water heater to the maximum hot water

level, and drain the water inside the interior shell. Before the use of second time, in order to avoid the

occurrence of injury or accident, it is suggested to open the valve of the hot water before the connection of the

switch of power supply. No smoking or other open fire around the opened valve at this moment. Meanwhile,

carefully check if each component of the water heater is in good condition, and it can be put into operation

after confirmation. Note: The opening of the drain pipe shall not be higher than the relief hole of the safety

valve, and the drain pipe should be inserting into the floor drain or other places where drainage is convenient.

6. If there is enough hot water, lower the setting temperature as far as possible, which will reduce heat loss and

reduce high-temperature corrosion and scale deposits, and prolong the service life of water heater.

7. Periodically request a serviceman to conduct a safety inspection, remove water scaling from the heating pipe,

and check the consumption condition of the magnesium bar, and it should be replaced if the loss is too large.

 Cleaning and Maintenance of Unit

Declaration: This water heater only can be serviced and maintained by a qualified serviceman, and incorrect

method may result in serious injury, accident or property loss. You must remove the power plug before the startup

of the water heater or maintenance of water heater.

Note: Before requesting someone for service, please refer to Keys to Difficulties attached below to eliminate

obvious problems.

z Exterior Cleaning: Turn off power supply before the cleaning the water heater. Use a cloth and a small amount

of neutral cleaning agent to gently wipe the unit. Do not use gasoline or other solutions. Finally use a dry

cloth to wipe dry, and keep the water heater in a dry condition. Don’t use abrasives (such as toothpaste), acids,

chemical solvents (such as alcohol), or polishing agents.

Cleaning and Maintenance of Unit · Keys to Difficulties

 Cleaning and Maintenance of Unit

z Interior Cleaning: In order to maintain the high-efficiency of the water heater, clean the heating tube and

interior shell once every three years. Don’t damage the exterior of the heating tube and the protective layer of

the surface of the interior shell. The magnesium bar should be replaced periodically according to local water

quality and usage habits.

z Cleaning of Interior Shell: You must remove power plug before the cleaning the interior shell. During the

cleaning period, close the inlet valve, open the outlet valve, remove the bottom cover, transparent decoration

accessories and decorative cover of the shockproof wall, dismantle the magnesium bar (at this moment you

can check the consumption condition of magnesium bar in order to replace it. Note: The magnesium bar is

sold separately), empty the water inside water tank, open the inlet valve to flush it for several minutes until

the clean water is drained, and re-install decorative cover of the shockproof wall, transparent decoration

accessories, and bottom cover.

 Keys to Difficulties

Symptom Items to be confirmed Solution

1. If the water supply system stops

supplying water or if water pressure

is too lower

Check No water flows out

2. If water use point is clogged, and if

hot water valve is opened

Check and clean

1. If hot water opening hasn’t been

opened

Clean and open

2. If water temperature is adjusted Conduct correction according to

operation method shown in

instruction manual.

3. The heating time is too short, and it

hasn’t reached setting temperature

Outlet is cold water

4. If elements are damaged Please contact the service department

if it is not the items shown in 1, 2,

and 3.

1. If the current function mode is

correctly set, and if the temperature

setting is too low

Conduct correction according to

operation method shown in

instruction manual.

It can’t heat to required

temperature or outlet of hot water

is low

2. If tap water pressure is too high Reduce the flow of the mixing valve

Outlet is high one minute and low

the next, or cold one minute and

hot the next

If tap water pressure is stable Reduce the flow of the mixing valve

or wait for the stability of water

pressure

1. If the contact of power supply is

good

Check power socket It can’t be started or the display

screen is not bright

2. If elements are damaged Please contact the service department

if it is not the items shown in 1.

Indication E1 Circuit fault Please contact the service department

1. If interior shell is filled with water After power off, fill fully with water,

and turn back on

Indication E2

2. If elements are damaged Please contact the service department

if it is not the items shown in 1.

1. If indoors temperature is less than

20℃ below zero

Turn off the power supply, and it can

resume normal condition after

turning back on when ambient

temperature is higher than 19℃

below zero.

Indication E3

2. If the sensor is damaged Please contact the service department

if it is not the items shown in 1.

Haier Group

Haier Water Heater Co., Ltd., Qingdao Economic and Technical Development Zone Version: 1

Address: Haier Industrial Park, Qingdao Economic and Technical Development Zone Special SN: 0040500

Website: http://www.haier.com VC

Haier FCD-HM50 Operation Instruction Manual

Brand: Haier

Model: FCD-HM50

Type: Operation Instruction Manual

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Haier FCD-HM50 Operation Instruction Manual

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