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SINCLAIR
No.
1
Panel of wired controller
2
3
Bottom plate of wired controller
Figure 7-4 Disassembly Diagram of Rainproof Box of Wired Controller
8 Refrigerants Perfusion
8.1 Precautions on Refrigerant Leakage
The engineering design and installation personnel for the water heater must comply with local laws
and regulations on refrigerant leakage. If no safety requirement on refrigerant leakage is posed by local
regulations, design and operation of the water heater must meet the requirements specified below. The
household air source water heater with static heat up adopts refrigerant R410A and R134a. Although the
refrigerant is non-flammable and not toxic, the space must be large enough for possible leakage. The
refrigerant concentration must strictly follow the safety requirement; otherwise, suffocate will be caused.
The water heater unit consists of the outdoor unit installed outdoor and the water tank which can be
installed in the balcony, kitchen, or bathroom. Therefore, special attention must be paid to avoid
refrigerant leakage at the water tank side.
The method of calculating the maximum perfusion quantity and the maximum concentration of the
refrigerant is subject to the size of space where the water tank is installed. Unit of refrigerant
concentration is kg/m³.
Method of calculating the maximum concentration of the refrigerant (the water tank is installed
AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL
Name
Screw
Figure 7-3 Rainproof Box Accessories of Wired Controller
No.
Name
4
Rubber cushion(rainproof box)
5
Rainproof box
6
Installation box inside the wall
41
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