Haier HSU-12H03/R(DB) Сервис мануал онлайн [27/131] 613258

Haier HSU-09H03/R(DB) Сервис мануал онлайн [27/131] 613257
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Note: A:Outdoor suction temperature sensor
B: Exhaust temperature sensor
C: Indoor heat-exchange sensor
Outdoor The outdoor heat exchanger thermistor is used for controlling target discharge temperature.
Suction The system sets a target discharge temperature according to the outdoor and indoor heat
Temperature exchanger temperature, and controls the electronic expansion valve opening so that the
Sensor target discharge temperature can be obtained.
Exhaust The discharge pipe thermistor is used for controlling temperature of the discharge pipe.
Temperature If the temperature of discharge pipe (used in place of the inner temperature of the
Sensor compressor) rises abnormally, the operating frequency drops or the operation halts.
Indoor 1.The indoor heat exchanger thermistor is used for controlling target discharge temperature.
heat-exchange
The system sets a target discharge temperature according to the outdoor and indoor heat
V
ensor exchanger temperature, and controls the electronic expansion valve opening so that the

target discharge temperature can be obtained.
2.The indoor heat exchanger thermistor is used for preventing freezing.During the cooling
operation, if the temperature drops abnormally, the operating frequency becomes lower,
then the operation halts.
3.The indoor heat exchanger thermistor is used for anti-icing control.During the cooling
operation, if the heat exchanger temperature in the room where operation is halted becomes
-1°C, it is assumed as icing.
+6809,12H03/R(DB)  Functions and control
Demastic Air Conditioners
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