D50-15FA3 - Chauffe-eau instantané et chauffe-eau MIDEA - Free user manual and instructions

Product Type	Electric Storage Water Heater
Brand	Midea
Model	D50-15FA3
Capacity	50 L
Rated Power	750 W
Rated Voltage	220-240 V AC
Rated Pressure	0.75 MPa
Max Water Temperature	75 °C
Protection Class	I
Waterproof Class	IPX4
Energy Efficiency Class	C
Annual Energy Consumption	1400 kWh
Load Profile	M
Dimensions (Diameter x Height)	450 mm x 600 mm
Heating Element	Electric (immersed)
Control	Automatic thermostat with indicator lights
Safety Devices	Temperature limiter (manual reset), pressure relief valve, thermal cut-off
Installation	Wall-mounted (horizontal or vertical), requires reliable earthing
Inner Tank Material	Enameled steel with magnesium anode
Included Accessories	Pressure relief valve, expansion bolts, rubber seal gaskets
Maintenance	Regular cleaning of tank, inspection/replacement of magnesium anode
Warranty	Refer to manufacturer; installation by qualified professional required

Frequently Asked Questions - D50-15FA3 MIDEA

How do I install the Midea D50-15FA3 water heater?

Installation must be done by a qualified professional. Ensure the wall can support twice the weight of the heater when full. Use the provided expansion bolts to hang the heater. The supply socket must be grounded and rated at least 10A, installed at a height not less than 1.8m. Connect the pressure relief valve to the cold water inlet. Refer to the manual for detailed steps.

How do I fill the water heater for first use?

Open an outlet valve at the hot water outlet, then open the inlet valve. Wait until water flows from the outlet (air is expelled), then close the outlet valve. Ensure the heater is completely filled before switching on the power.

What should I do if water leaks from the heater?

Check the pipeline joints. If leaking from joints, tighten them or replace gaskets. If leaking from the pressure relief valve, it may be normal due to pressure; if excessive, contact customer care. Do not block the pressure release hole.

How do I drain the water from the tank?

Switch off the power. Close the inlet valve. Unscrew the thread screw on the multifunction safety valve and lift the drain handle upward. Water will drain from the tank. Keep the drainage pipe sloping downward.

Why is water dripping from the pressure relief valve?

A few drops during heating is normal due to thermal expansion. If a large amount of water leaks, it may indicate a faulty valve or excessive pressure. Contact a professional for repair. Never block the pressure release hole.

What do the indicator lights mean?

When the plug is inserted and power is on, both indicator lights should illuminate. The thermostat automatically controls heating: lights turn off when set temperature is reached and on when heating resumes. If the heating light is off but no hot water, the temperature controller may be faulty.

How do I reset the temperature limiter?

The temperature limiter cuts power if overheated. To reset, locate the reset knob (see Fig.6 in manual) and press it firmly. Only qualified professionals should disassemble the limiter. Contact service if needed.

What maintenance is required for the water heater?

Regularly check the power plug and socket for heating. For regions with hard water, clean the tank and heating element periodically. Inspect the magnesium anode every 1-2 years and replace if more than 70% consumed. Have a professional perform these tasks.

Can the water heater be used in cold climates (below 0°C)?

If the heater is not used for a long time in freezing conditions, drain the water completely to prevent tank damage from ice expansion. The manual recommends draining the tank before prolonged inactivity in cold areas.

What should I do if no hot water comes out?

Check if the water supply is on (inlet valve open). If water pressure is low, wait for increase. If the heating light is off, the temperature controller may be faulty; contact a professional. Also ensure the heater is not turned off at the socket.

USER MANUAL D50-15FA3 MIDEA

Technical line drawing of a vertical cylindrical device with a central dial and base (no text or symbols)

The diagram above is just for reference. Please take the appearance of the actual product as the standard.

General Remark

• The installation and maintenance has to be carried out by qualified professionals or Midea 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)
7.PRODUCE INFORMATION WITH EU REGULATION .....(9)

1. CAUTIONS

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

• 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. Inspect frequently whether the plugs contact well with the socket. Inspect method is as follows: insert the power supply plug into socket, after using for half an hour, shut down the unit and pull the plug out, and inspect the plug whether it scalds hand. If it scalds (over 50°C), please change another well-contacted socket to avoid the plug being damaged, fire or other personnel accidents result from bad-contacting.
• 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), and make sure it is not exposed in the foggy. The water may be outflowed from pressure relief valve, so the outflow pipe must open wide in the air; The pressure relief valve need to be checked and cleaned regularly, so as to make sure it will not be blocked.

(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 multifunction valves. 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°C, 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.

- Unscrew the thread screw on the multifunction safety valve, and lift the drain handle upwards. (See Fig.1) to drain the water from the inner tank.

- 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.

- 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.

2. PRODUCT INTRODUCTION

2.1 Technical Performance Parameters

Model	Volume (L)	Rated Power (W)	Rated Voltage (ACV)	Rated Pressure (MPa)	Max Of Water Temperature (°C)	Protection Class	Water Proof Class
D30-15FA3						I	IPX4750.8220-240
D50-15FA3						I	IPX4750.8220-240
D80-15FA3						I	IPX4750.8220-240
D100-15FA3						I	IPX4750.8220-240

2.2 Brief introduction of product structure

	D30-15FA3	D50-15FA3	D80-15FA3	D100-15FA3
A	340	450	450	450
B	594	600	809	974
C	100	100	100	100
D	200	200	200	200

(Note: All dimensions are in mm)

2.3 Internal Wire Diagram

WIRING DIAGRAM

3. UNIT INSTALLATION

3.1 Installation Instruction

① 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.

② After selecting a proper location, determine the positions of the two install holes used for expansion bolts with hook (determined according to the specification of the product you select). 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 electric water heater on it (see Fig.2).

Technical diagram of a mechanical assembly with hatched background and circular component (no text or symbols)

Technical diagram of a mechanical component with hatched fill and dashed lines indicating internal features (no text or symbols)

Expansion bolt (with hook)
(Fig.2)

③ 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 there is fault on power cable, it should be replaced by the manufacturers, agencies or qualified person who is able to do this so as to ensure the safety.

④ If the bathroom is too small, the heater can be installed at another place without sun-scorched and rain-drenched. 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.

3.2 Pipelines Connection

① The dimension of each pipe part is G1/2"; The massive pressure of inlet should use Pa as the unit; The minimum pressure of inlet should use Pa as the unit.

② Connection of pressure relief valve with the heater on the inlet of the water heater.

③ 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).

④ If the users want to realize a multi-way supply system, refer to the method shown in fig.5 for connection of the pipelines.

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

- 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.

NOTE

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

• Insert the supply plug into the supply socket, the two indicator lights 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.

5. MAINTENANCE

WARNING

Do cut off power supply before maintenance, to avoid danger like electric shock.

- Temperature limiter cut off electricity if water heater is overheated or thermostat damages. Manual resetting is needed. Ressetting knob is as follows (see Fig.6). Non-professionals are not allowed to disassemble temperature limiter to reset. Please contact professionals to maintain. Otherwise our company will not take responsibility if any quality accident happens because of this.

(Fig.6)

• 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°C), it is necessary 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.

6. TROUBLESHOOTING

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.	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.
The water temperature is too high.	Failures of the temperature control system.	Contact with the professional personnel for repair.
Water leak.	Seal problem of the joint of each pipe.	Seal up the joints.

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. Specifications are subject to change without notice.

7. Produce information with EU regulation

The electrical storage water heater D30-15FA3 of the company MIDEA Ltd. was tested with a declared load profile of the size "S"

The product fulfills and corresponds to the requirements of the commission regulation standards (No 814/2013) for electrical storage water heater and achieved a water heating energy efficiency of _wh = 32% that correspond to the water heating efficiency class "C"

In accordance with Annex II Energy Efficiency Classes article 1 of the commission regulation (No 812/2013)

The evaluation of the result of this report with respect of conformity with the related commission regulation (No 812/2013 and 814/2019) is only a part of the conformity assessment to achieve the ErP-Label.

Electricity consumption Qelec, water heating energy efficiency wh and mixed water at 40^ (V40)

Description tinUeulaVretemaraP
k-Value	k	0.23
Smart control compliance	smart	0
Smart control factor	SCF	0
Conversion coefficient	CC	2.5
Ambient correction term	Qcor	-0.414	kWh
Referenct energy	Qref	2.1	kWh
Useful energy content	Q_H2O	2.5	kWh
Correction ratio of reference and useful energy	Q_ref/Q_H2O	0.84	kWh
Daily electricity consumption (measured)	Q_test\_elec	3.520	kWh
Water temperature at the beginning of the 24h measurement cycle	T3	66.4	°C
Water temperature at the end of the 24h measurement cycle	T5	71	°C
Storage volume	Mct	30.3	kg
Storage volume	Gct	30.3	L
Daily electricity consumption (corrected)	Q_elec	2.820	kWh
Water heating energy efficiency	_wh	31.6
Annual Electricity Consumption	AEC	583	kWh
Water heating energy efficiency class		C
Description	Parameter	Value	Unit
Water temperature without tapping	T_set	66	°C
Average water temperature of outlet warm water	'_p	62.2	°C
Average water temperature of inlet cold water	_c	10.5	°C
Normalised value of the average temperature	_p	62.2	°C
Volume that delivered water of at least 40°C	V_40exp	25	L
Calculated volume that delivered hot water of at least 40°C	V_40	44	L

The electrical storage water heater D50-15FA3 of the company MIDEA Ltd. was tested with a declared load profile of the size "M"

The product fulfills and corresponds to the requirements of the commission regulation standards (No 814/2013) for electrical storage water heater and achieved a water heating energy efficiency of _wh = 37% that correspond to the water heating efficiency class "C"

In accordance with Annex II Energy Efficiency Classes article 1 of the commission regulation (No 812/2013)

The evaluation of the result of this report with respect of conformity with the related commission regulation (No 812/2013 and 814/2019) is only a part of the conformity assessment to achieve the ErP-Label.

Electricity consumption Qelec, water heating energy efficiency ηwh and mixed water at 40°C (V40)

Description tinUeulaVretemaraP
k-Value k		0.23
Smart control compliance	smart	0
Smart control factor SCF		0
Conversion coefficient CC		2.5
Ambient correction term	Q_cor	-0.395	kWh
Referenct energy	Q_ref	5.845	kWh
Useful energy content	Q_H2O	5.730	kWh
Correction ratio of reference and useful energy	Q_ref/Q_H2O	1.038	kWh
Daily electricity consumption (measured)	Q_test\_elec	6.527	kWh
Water temperature at the beginning of the 24h measurement cycle	T3	58.6	°C
Water temperature at the end of the 24h measurement cycle	T5	62.7	°C
Storage volume	M_ct	49	kg
Storage volume	C_act	49	L
Daily electricity consumption (corrected)	Q_elec	6.532	kWh
Water heating energy efficiency	η_wh	36.68
Annual Electricity Consumption	AEC	1400	kWh
Water heating energy efficiency class		C
Description	Parameter	Value	Unit
Water temperature without tapping	T_set	60	°C
Average water temperature of outlet warm water	θ'_p	59.8	°C
Average water temperature of inlet cold water	θ_c	8.8	°C
Normalised value of the average temperature	θ_p	59.9	°C
Volume that delivered water of at least 40°C	V_40exp	38	L
Calculated volume that delivered hot water of at least 40°C	V_40	63	L

The electrical storage water heater D80-15FA3 of the company MIDEA Ltd. was tested with a declared load profile of the size "M"

The product fulfills and corresponds to the requirements of the commission regulation standards (No 814/2013) for electrical storage water heater and achieved a water heating energy efficiency of _wh = 36% that correspond to the water heating efficiency class "C"

In accordance with Annex II Energy Efficiency Classes article 1 of the commission regulation (No 812/2013)

The evaluation of the result of this report with respect of conformity with the related commission regulation (No 812/2013 and 814/2019) is only a part of the conformity assessment to achieve the ErP-Label.

Electricity consumption Qelec, water heating energy efficiency ηwh and mixed water at 40°C (V40)

Description tinUeulaVretemaraP
k-Value	k	0.23
Smart control compliance	smart	0
Smart control factor	SCF	0
Conversion coefficient	CC	2.5
Ambient correction term	Q_cor	-0.335	kWh
Referenct energy	Q_ref	5.845	kWh
Useful energy content	Q_H2O	6.135	kWh
Correction ratio of reference and useful energy	Q_ref/Q_H2O	0.953	kWh
Daily electricity consumption (measured)	Q_test\_elec	8.537	kWh
Water temperature at the beginning of the 24h measurement cycle	T3	51.8	°C
Water temperature at the end of the 24h measurement cycle	T5	70.9	°C
Storage volume	M_ct	80.6	kg
Storage volume	C_act	80.6	L
Daily electricity consumption (corrected)	Q_elec	6.428	kWh
Water heating energy efficiency	n_wh	36.4
Annual Electricity Consumption	AEC	1382	kWh
Water heating energy efficiency class		C
Description	Parameter	Value	Unit
Water temperature without tapping	T_set	52	°C
Average water temperature of outlet warm water	'_p	50	°C
Average water temperature of inlet cold water	_c	10.5	°C
Normalised value of the average temperature	_p	49.9	°C
Volume that delivered water of at least 40°C	V_40exp	56	L
Calculated volume that delivered hot water of at least 40°C	V_40	75	L

The electrical storage water heater D100-15FA3 of the company MIDEA Ltd. was tested with a declared load profile of the size "M"

The product fulfills and corresponds to the requirements of the commission regulation standards (No 814/2013) for electrical storage water heater and achieved a water heating energy efficiency of _wh = 36% that correspond to the water heating efficiency class "C"

In accordance with Annex II Energy Efficiency Classes article 1 of the commission regulation (No 812/2013)

The evaluation of the result of this report with respect of conformity with the related commission regulation (No 812/2013 and 814/2019) is only a part of the conformity assessment to achieve the ErP-Label.

Electricity consumption Qelec, water heating energy efficiency ηwh and mixed water at 40°C (V40)

Description tinUeulaVretemaraP
k-Value k		0.23
Smart control compliance	smart	0
Smart control factor SCF		0
Conversion coefficient	CC	2.5
Ambient correction term	Q_cor	-0.464	kWh
Referenct energy	Q_ref	5.845	kWh
Useful energy content	Q_20	6.243	kWh
Correction ratio of reference and useful energy	Q_ref/Q_H2O	0.936	kWh
Daily electricity consumption (measured)	Q_test\_elec	9.394	kWh
Water temperature at the beginning of the 24h measurement cycle	T3	51.3	°C
Water temperature at the end of the 24h measurement cycle	T5	70.8	°C
Storage volume	M_ct	100.9	kg
Storage volume	G_act	100.9	L
Daily electricity consumption (corrected)	Q_elec	6.653	kWh
Water heating energy efficiency	η_wh	36.2
Annual Electricity Consumption	AEC	1420	kWh
Water heating energy efficiency class		C
Description	Parameter	Value	Unit
Water temperature without tapping	T_set	51	°C
Average water temperature of outlet warm water	θ_p'	50.7	°C
Average water temperature of inlet cold water	θ_c	10.3	°C
Normalised value of the average temperature	θ_p	50.7	°C
Volume that delivered water of at least 40°C	V_40exp	76.3	L
Calculated volume that delivered hot water of at least 40°C	V_40	103	L

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

Wuhu Midea Kitchen & Bath Appliances Mfg. Co., Ltd.

Address: East Road Wanchun, East Area Economic & Technological Development Area, Wuhu City, Anhui Province, P.R.China

Web site: www.midea.com/global Postal code: 241000

Midea Italia S.r.l.

A Socio Unico Viale

(MI) www.midea.com/it

Technical line drawing of a vertical cylindrical water heater with a pressure gauge (no text or symbols)

Technical diagram showing a mechanical assembly with hatched background and circular component (no text or symbols)

Technical diagram of a mechanical component with hatched fill and internal shaft (no text or symbols)

Tassello a espansione (con gancio)

(Fig.2)

Wuhu Midea Kitchen & Bath Appliances Mfg. Co., Ltd.

Address: East Road Wanchun, East Area Economic & Technological Development Area, Wuhu City, Anhui Province, P.R.China

Web site: www.midea.com/global Postal code: 241000

Midea Italia S.r.l.

A Socio Unico Viale

(MI) www.midea.com/it