Midea D30-15W Bedienungsanleitung

Storage Electric Water Heater

The diagram above is just for reference. Please take the

appearance of the actual product as the standard.

Instruction Manual

For Model: D30-15W

D50-15W

D80-15W

D100-15W

D120-15W

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.

The installation and maintenance has to be carried out by qualified professials or authorized

technicians.

The manufacturer shall not be held responsible for any damage or malfunction caused by wrong

installation or failing to comply with following instructions included in this pamphlet.

For more detailed installation and maintenance guidelines, please refer to below chapters.

TABLE OF CONTENTS

TITLE PAGE

1.Cautions ...........................................................................................................................(2)

2.Product introduction .........................................................................................................(3)

3.Unit installation .................................................................................................................(5)

4.Methods of using ..............................................................................................................(7)

5.Maintenance.....................................................................................................................(7)

6.Troubleshooting................................................................................................................(8)

●

General Remark

The supply socket must be earthed reliably. The rated current of the socket shall not be lower

than 10A. The socket and plug shall be kept dry to prevent electrical leakage.

The installation height of the supply socket shall not be lower than 1.8m.

The wall in which the electrical water heater is installed shall be able to bear the load more than

two times of the heater filled fully with water without distortion and cracks. Otherwise, other

strengthening measures shall be adopted.

The pressure relief valve attached with the heater must be installed at the cold water inlet of this

heater(see Fig.1).

Before installing this water heater,check and confirm that the earthing on the supply socket is

reliably grounded. Otherwise, the electrical water heater can not be installed and used. Do not

use extension boards. Incorrect installation and use of this electrical water heater may result in

serious injuries and loss of property.

Special Cautions

1. CAUTIONS

●

(Fig.1)

When using the heater for the first time(or the first use after maintenance), the heater can not be

switched on until it has been filled fully with water. When filling the water, at least one of the outlet

valves at the outlet of the heater must be opened to exhaust the air. This valve can be closed

after the heater has been filled fully with water.

The water heater 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 instructions 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 heater.

During heating, there may be drops of water dripping from the pressure release hole of the

pressure relief valve. This is a normal phenomenon. If there is a large amount of water leak,

please contact customer care center for repair. This pressure release hole shall, under no

circumstances, be blocked; otherwise, the heater may be damaged, even resulting in accidents.

The drainage pipe connected to the pressure release hole must be kept sloping downwards.

Since the water temperature inside the heater can reach up to 75℃, the hot water must not be

exposed to human bodies when it is initially used. Adjust the water temperature to a suitable

temperature to avoid scalding.

If the flexible power supply cord is damaged, the special supply cord provided by the manufacturer

must be selected, and replaced by the professional maintenance personnel.

Thread screw

Drain handle

Pressure release hole

Hot water Cold water

One-way safety valve

Power supply cord

2. PRODUCT INTRODUCTION

2.1 Technical Performance Parameters

●

If any parts and components of this electrical water heater are damaged please contact customer

care center for repair.

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.

The water may drip from the discharge pipe of the pressure-relief device and that this pipe must

be left open to the atmosphere; The pressure-relief device is to be operated regularly to remove

lime deposits and to verify that it is not blocked;

In order to drain away the water inside the inner container, it can be drained away from the

pressure release valve. Twist the thread screw of the pressure release valve off, and lift the drain

handle upwards.(See Fig.1) A discharge pipe connected to the pressure-relief device is to be

installed in a continuously downward direction and in a frost-free environment.

Model

Rated

Voltage

(ACV)

IPX4

0.75

220

2000

D30-15W

D50-15W

Rated

Power

(W)

Volume

(L)

Rated

Pressure

(MPa)

Max Of Water

Temperature

(℃)

Protection

Class

Waterproof

Grade

IPX4750.75220200080D80-15W I

IPX4750.752202000100D100-15W I

D120-15W 120 2000 220 0.75 75 IIPX4

2.2 Brief introduction of product structure

2.3 Internal Wire Diagram

(Note:All dimensions are in mm)

30L

340

580

200

50L 80L 100L

385

715

200

450

745

200

450

895

200

Thermometer

Hot water outlet

Cold water inlet

On/ Off

Temperature adjusting knob

Inner tank

Thermal

insulation

Heating

element

Anode

Shell

Power indicator light

Heating indicator light

Power

cord

WIRING DIAGRAM

Thermal

Cut Out Thermostat

Power Supply

Indicator Light

Heating Indicator light

Heating Element

Switch

Brown

Blue

Yellow/Green

120L

200

450

1047

3.1 Installation Instruction

①

②

③

④

3. UNIT INSTALLATION

This electrical water heater shall be installed on a solid wall. If the strength of the wall

cannot bear the load equal to two times of the total weight of the heater filled fully with

water, it is then necessary to install a special support.

Incase of hollow bricks wall, ensure to fill it with cement concrete completely.

After selecting a proper location, determine the positons of the two install holes used for

expansion bolts with hook (200mm), Make two holes in the wall with the corresponding

depth by using a chopping bit with the size matching the expansion bolts attached with the

machine, insert the screws, make the hook upwards, tighten the nuts to fix firmly, and then

hang the electrical water heater on it (see Fig.2).

Install the supply socket in the wall. The requirements for the socket are as follows: 250V/10A,

single phase, three electrodes. It is recommended to placed the socket on the right above

the heater. The height of the socket to the ground shall not be less than 1.8m (see Fig.3).

If the bathroom is too small, the heater can be installed at another place. However, in

order to reduce the pipeline heat losses, the installation position of the heater shall be

closed to the location shall be as near as possible to the heater.

(Fig.2)

(Fig.3)

Expansion bolt (with hook)

N (Blue)

Ground

≥1.8m

L (Brown) E (Yellow/Green)

3.2 Pipelines Connection

If the users want to realize a multi-way supply system, refer to the method shown in fig.5

for connection of the pipelines.

④

①

②

③

The dimension of each pipe part is G1/2” .

Connection of pressure relief valve with the heater on the inlet of the water heater.

(Fig.4)

(Fig.5)

In order to avoid leakage when connecting the pipelines, the rubber seal gaskets provided

with the heater must be added at the end of the threads to ensure leak proof joints (see

Fig.4).

Hot water outlet Cold water inlet

Pressure release hole

Joint screw for cold water inlet

Adjusting handle for

mixing valve

Screw for hot water outlet

Power supply cord

Water inlet valve

Running water pipe

Mixing valve

Water pool

Triple joint Shower nozzle

Hot

water

outlet

Cold

water

inlet

Main machine

Power supply cord

One-way safety valve

NOTE

Please be sure to use the accessories provided by our company to install this electric

water heater. This electric water heater can not be hung on the support until it has been

confirmed to be firm and reliable. Otherwise, the electric water heater may drop off from

the wall, resulting in damage of the heater, even serious accidents of injury. When

determining the locations of the bolt holes, it shall be ensured that there is a clearance

not less than 0.2m on the right side of the electric heater, to convenient the maintenance

of the heater, if necessary.

4. METHODS OF USING

NOTE

During normal operation, the inlet valve shall be always kept open.

First, open any one of the outlet valves at the outlet of the water heater, then, open the inlet

valve. The water heater gets filled with water. When water flows out of the outlet pipe it implies

that the heater has been filled fully with water, and the outlet valve can be closed.

Insert the supply plug into the supply socket, the indicator will light up this time.

The thermostat will automatically control the temperature. When the water temperature inside

the heater has reached the set temperature, it will switch off automatically, when the water

temperature falls below the set point the heater will be turned on automatically to restore the

heating.

●

Check the power plug and outlet as often as possible. Secure electrical contact and also proper

grounding must be provided. The plug and outlet must not heat excessively.

If the heater is not used for a long time, especially in regions with low air temperature(below 0℃),

it is nessary to drain water from the heater to prevent damage of the water heater, due to water

freezing in the internal tank.(Refer Cautions in this manual for the method to drain away the water

from the inner container).

To ensure long reliable water heater operation, it is recommended to regularly clean the internal

tank and remove deposits on the electric heating element of the water heater, as well as check

condition (fully decomposed or not) of the magnesium anode and, if necessary, replace it with a

new one in case of full decomposition.Tank cleaning frequency depends on hardness of water

located in this territory. Cleaning must be performed by special maintenance services. You can

ask the seller for address of the nearest service center.

●

5. MAINTENANCE

WARNING

Before doing any maintenance, please cut off the power supply.

Failures Reasons Treatment

The heating indicator

light is off.

Failures of the temperature

controller.

Contact with the professional

personnel for repair.

No water coming out

of the hot water outlet.

The water temperature

is too high.

Water leak.

1. The running water supply

is cut off.

2. The hydraulic pressure is

too low.

3. The inlet valve of running

water is not open.

1. Wait for restoration of

running water supply.

2. Use the heater again when

the hydraulic pressure is

increased.

3. Open the inlet valve of

running water.

Failures of the temperature

control system.

Seal problem of the joint

of each pipe.

Contact with the professional

personnel for repair.

Seal up the joints.

6. TROUBLESHOOTING

NOTE

Parts illustrated in this use and care manual are indicative only, parts provided with the

product may differ with illustrations.This product is intended for household use only. Specifi-

cations are subject to change without notice.

●

WARNING

Non-professionals are not allowed to disassemble the thermal switch to reset.

Please contact prefessionals to maintain. Otherwise our company will not take

responsiblity if any quality accident happens because of this.

The water heater is equipped with a thermal switch, which cuts off power supply of the heating element

upon water overheating or its absence in the water heater. If the water heater is connected to the mains,

but water is not heated and the indicator doesn’t light up, then the thermal switch was switched off or not

switched on. To reset the water heater to the operating condition, it is necessary to:

1. De-energize the water heater, remove the plate of the side/lower cover.

2. Press the button, located at the center of the thermal switch, see Fig.6;

3. If the button is not pressed and there is no clicking, then you should wait until the thermal switch

cools down to the initial temperature.

(Fig.9)

Manual reset button

The product is subject to change without notice.

Please keep this manual properly.

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