ecoclima CM2-H16/4DR2, Руководство по обслуживанию

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5. Refrigerant System Diagram
Heat Exchanger
Heat Exchanger
Filter
1#
2#
Motor
Capillary
Electronic Expansion Valve
3#
c
Four-Way Valve
S
E
D
Compressor
Gas/Liquid Separator
The outdoor and indoor units start to work once the power is switched on. During the cooling operation, the low
temperature, low pressure refrigerant gas from the heat exchanger of each indoor unit gets together and then is taken
into the compressor to be compressed into high temperature, high pressure gas, which will soon go to the heat
exchanger of the outdoor unit to exchange heat with the outdoor air and then is turned into refrigerant liquid. After
passing through the throttling device, the temperature and pressure of the refrigerant liquid will further decrease and
then go the main valve. After that, it will be divided and go to the heat exchanger of each indoor unit to exchange heat
with the air which needs to be conditioned. Consequently, the refrigerant liquid become low temperature, low
pressure refrigerant gas again. Such a refrigerant cycle goes round and round to achieve the desired cooling
purpose. During the heating operation, the four-way valve is involved to make the refrigerant cycle reversely. The
refrigerant radiates heat in the heat exchanger of the indoor unit(so do the electric heating devices)and absorb heat in
the heat exchanger of the outdoor unit for a heat pump heating cycle so as to achieve the desired heating purpose.
6. Schematic Diagram
6.1 Electrical Wiring
Meaning of marks
Symbol OGE WHT YEW RD YEGN BLN BLU BLK VT
Color symbol ORANGE WHITE YELLOW RED YELLOW GREEN BROWN BLUE BLACK VIOLET
Symbol CM/COMP CT1,2 4V XT
Parts name COMPRESSOR OVERLOAD 4-WAY VALVE TERMINAL BLOCK PROTECTIVE EARTH