SiBE37-701_B Refrigerant Circuit
Refrigerant Circuit 70
1.7 Indoor Units
FXCQ, FXFQ, FXZQ, FXKQ, FXDQ, FXSQ, FXMQ, FXHQ, FXAQ, FXLQ, FXNQ
No. Name Symbol Function
Electronic
expansion valve
Y1E
Used to control superheated degree of gas when
cooling and subcooled degree when heating. (Max.
2000 pls)
Suction air
thermistor
R1T Used for thermostat control.
Liquid pipe
thermistor
R2T
Used to control superheated degree of gas when
cooling and subcooled degree when heating.
Gas pipe
thermistor
R3T
Used for gas superheated degree control when
cooling.
Gas-side
Piping
Liquid-side
Piping
Fan
Electronic
Expansion Valve
Filter
Filter
M
(2)
(3)
(4)
(1)
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