Comfee Storage Electric Water Heater

General Remark

• The installation and maintenance must be performed by qualified professionals or Midea authorized technicians.
• The manufacturer is not responsible for damage or malfunction caused by incorrect installation or failure to comply with instructions.
• Refer to subsequent chapters for detailed installation and maintenance guidelines.

? Cautions

Before installing this water heater, confirm that the supply socket is reliably grounded. Incorrect installation or use may result in serious injury and property loss. Do not use extension boards.

Special Cautions

• The water heater is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience, unless supervised by a responsible person. Children should be supervised to ensure they do not play with the heater.
• The wall must support more than twice the weight of the heater filled with water. Reinforce the wall if necessary.
• The supply socket must be earthed reliably, installed at a height not lower than 1.8m, and rated for at least 16A. Keep the socket and plug dry. If the power cord is damaged, it must be replaced by professional personnel using a special supply cord.
• Maximum inlet water pressure is 0.5MPa; minimum is 0.1MPa.
• Before first use or after maintenance, the heater must be filled with water. Open an outlet valve to exhaust air during filling. Close the valve once water flows out.
• The pressure relief valve must be installed at the cold water inlet. Ensure its discharge pipe is open to the atmosphere and slopes downwards in a frost-free environment. Water dripping from the pressure release hole during heating is normal; do not block the hole. Contact customer care for leaks.
• The pressure relief valve should be checked and cleaned regularly.
• Hot water can reach up to 75°C. Use a thermostatic mixing valve to prevent scalding.
• Contact the customer care center for damaged parts or components.

Product Introduction

Nomenclature

The model number D*-*** structure indicates: ① Product code (D=Storage Electric Water Heater), ② Capacity (L), ③ Rated Power (*100W), ④ Pattern code, ⑤ Series extension.

Technical Performance Parameters

Brief introduction of product structure

Dimensions are provided in mm: For D10-15VEO/D10-15VEU: A=324, B=324, C=315, D=66. For D15-15VEO/D15-15VEU: A=368, B=368, C=340, D=66. For D30-15VEO/D30-15VEU: A=440, B=440, C=420, D=66.

Internal Wire Diagram

The wiring diagram shows connections for the heating element and thermostat. Wires are color-coded: Brown (L), Blue (N), Yellow/Green (E). Components include a Thermal Cut Out and a Thermostat, connected to the heating element and a heating indicator light.

Unit Installation

Installation Instruction

Install on a solid wall capable of supporting double the weight of the filled heater. For hollow bricks, fill with cement. Select location, install mounting bracket using provided anchors and fasteners (refer to Fig. 2 & 3). Align heater with bracket projections and slide to lock. Install a 250V/10A, single-phase, three-electrode socket at least 1.8m high (refer to Fig. 4). If space is limited, install in an adjacent room, protected from elements. Position close to water outlets to minimize heat loss.

Pipelines Connection

Pipe connections are G1/2". Ensure inlet pressure is within specified limits. Connect the pressure relief valve to the cold water inlet. Use provided rubber seal gaskets for leak-proof joints (refer to Fig. 5).

Methods of Using

Before use, fill the heater with water. Open an outlet valve and the inlet valve. Keep the hot water tap open to expel air. Once water flows steadily, close the tap. The inlet valve should remain open during normal operation. Insert the plug into the socket. The thermostat controls water temperature; the heater switches on/off automatically to maintain the set temperature. The indicator light shows heating status (blue when heating, off when finished).

The control knob (labeled '1') adjusts the water temperature setting.

Maintenance

⚠️ WARNING

Disconnect power supply before maintenance to avoid electric shock.

• Frequently check the plug and socket for secure contact and proper grounding. Ensure they do not overheat.
• If the heater is unused for extended periods, especially in freezing temperatures, drain the water to prevent freezing damage.
• For optimal performance, regularly clean the tank to remove deposits and check the magnesium anode. Cleaning frequency depends on water hardness. This should be done by qualified service personnel.
• The heater has a thermal switch that cuts power during overheating or low water levels. If the heater is connected but not heating, the thermal switch may have tripped.

Thermal Switch Reset

To reset the thermal switch: 1. De-energize the heater and remove the side/lower cover. 2. Press the reset button located at the center of the thermal switch (refer to Fig. 8). 3. If the button does not click or stay pressed, wait for the switch to cool down.

⚠️ WARNING

Resetting the thermal switch should only be done after identifying and rectifying the cause. This procedure must be performed by qualified personnel. Failure to do so may cause severe damage or accidents, for which the manufacturer will not be liable.

Troubleshooting

? NOTE: Illustrations are indicative; actual parts may differ. This product is for household use only. Specifications are subject to change without notice.

Produce Information with EU Regulation

The electrical storage water heater models were tested according to EU regulations (No 814/2013, No 812/2013) for energy efficiency. The following tables detail the test results and energy efficiency classifications.

D10-15VEO

D10-15VEU

D15-15VEO

D15-15VEU

D30-15VEO / D30-15VEU