Specifications

Piping Diagrams SiBE28-805
232 Appendix
1.2 Indoor Unit
FMCQ, FMDQ
C : 3TW25515-1
C : 3TW31365-1
Heat exchanger
(4)
(1)
Gas piping connection port
Liquid piping connection port
(Flare connection)
Flare connection : φ15.9 or less
Attached piping : Above φ19.1
Fan
Electronic
expansion valve
Filter Filter
(2)
(3)
Code Name Code Main function
(1) Electronic expansion valve Y1E
Used for gas superheated degree control while in
cooling operation or subcooled degree control while
in heating operation.
(2)
Suction air temperature
thermistor
R1T Used for thermostat control.
(3) Liquid pipe R2T
Used for gas superheated degree control while in
cooling operation or subcooled degree control while
in heating operation.
(4) Gas pipe R3T
Used for gas superheated degree control while in
cooling operation.
(mm)
Model GAS Liquid
FMDQ50 φ12.70 φ6.35
FMDQ60, 71, 100, 125 φ15.90 φ9.52
FMCQ50 φ12.70 φ6.35
FMCQ60, 71, 100, 125 φ15.90 φ9.52