149
4.System principle diagram
Cooling circle:
the Compressor inhales the low-temperature and low-pressure refrigerant vapor from the evaporator, and
vapor be turned into high-temperature and high-pressure gas then enters into condenser, the
high-temperature and high-pressure refrigerant gas and outdoor air make heat exchange in the
condenser, the compressed vapor is then cooled by heat exchange with the outside air, so that the vapor
condenses to be a high-temperature and high-pressure fluid, and then through capillary throttling to
cooled, low pressure, then the liquid enters into the evaporator and two-phase of gas and liquid refrigerant
in the evaporator completely evaporate, thereby cooling the indoor air; from evaporator the vapor is
inhaled into compressor again, so it runs continuously cycle to cycle, cooled air is continuous supplied to
the air-conditioned area though Duct by fan motor.
Heating cycle:
It is the contrary cycle of cooling cycle, at this moment the 4-way valve changes direction, and make
refrigerant flow to direction changer, that is, the vapor discharged from the compressor enters into the
indoor heat exchanger to condense, the condensation of refrigerant after the capillary expenditure,
evaporates in the outdoor heat exchanger, and then inhaled by the compressor after evaporation, so it
runs continuously periodically , the heated air is continuous supplied to the air-conditioned area though
duct by fan motor.
AL–H12/4R1(U), AL–H18/4R1(U)
消
音
器
四通换向阀
冷凝器
风
扇
离心风扇
蒸发器
辅助电加热
截止阀(液侧)
截止阀(气侧)
单向阀 制冷毛细管
制热毛细管
制冷时制冷剂流动方向
制热时制冷剂流动方向
T
外盘
T
冷中
Evaporator
Stopping Valve (Gas)
Fan
4 Way Valve
T(Mild-Condenser)
Centrifugal
T(Ambient)
T(Evaporator)
Auxiliary Electric Heater
T(Condenser)
Stopping Valve (Liquid)
Capillary (Heating)
Capillary (Cooling)
One Way Valve
M
uf
fl
e
Refrigerant flow direction in Cooling
Refrigerant flow direction in Heating
Содержание ICC(ICA)-**HR-SA6-NI
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Страница 75: ...155 Introduction of Control Board QRD SW3F HCE1 outdoor unit board sockets Power supply 380V 415V ...
Страница 104: ...186 7 Failure analysis Wired controller communication failure ...
Страница 105: ...187 Communication failure between indoor and outdoor unit ...
Страница 106: ...188 Outdoor protection phase sequence ...
Страница 107: ...189 Cooling high pressure protection ...
Страница 108: ...190 Heating high pressure protection ...
Страница 109: ...191 Cooling low pressure protection ...
Страница 110: ...192 Heating low pressure protection ...
Страница 111: ...193 Cooling exhaust temperature protection ...
Страница 112: ...194 Heating exhaust temperature protection ...
Страница 113: ...195 Refrigerant shortage or four way valve failure protection ...
Страница 114: ...196 Sensor failure protection ...
Страница 115: ...197 No action after power on ...
Страница 116: ...198 Poor effect ...
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Страница 118: ...200 Abnormal sound or viberation ...
Страница 119: ...201 ...
Страница 120: ...202 Abnormal odor ...
Страница 121: ...203 Air switch action when air conditioner starting up ...
Страница 122: ...204 Air conditioner water leakage ...