SiE39-404 Piping Diagrams
Appendix 263
1.2 Indoor Unit
FXCQ, FXZQ, FXFQ, FXKQ, FXSQ, FXMQ, FXHQ, FXAQ, FXLQ, FXNQ
R1T : Thermistor for suction air temperature
R2T : Thermistor for liquid line temperature
R3T : Thermistor for gas line temperature
DU220-602D
R2T
Filter
Electronic
expansion valve
Filter
Heat exchanger
R3T
R1T
Fan
Gas piping connection port
Flare connection: ø 15.9 or less
Attached piping: Above ø 19.1
Liquid piping connection port
(Flare connection)
(mm)
Capacity GAS Liquid
20 / 25 / 32 / 40 / 50M φ12.7 φ6.4
63 / 80 / 100 / 125M φ15.9 φ9.5
200M φ19.1 φ9.5
250M φ22.2 φ9.5
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