Indoor Unit - Daikin VRV III RXYQ5-54PY1 Service Manual

Piping Diagrams
1.2

Indoor Unit

FXCQ, FXFQ, FXKQ, FXSQ, FXMQ, FXHQ, FXAQ, FXLQ, FXNQ
(3)
Filter
Code
320
Heat exchanger
Fan
(2)
(1)
Electronic
Filter
expansion valve
Name
(1) Electronic expansion valve
Suction air temperature
(2)
thermistor
(3) Liquid pipe
(4) Gas pipe
Capacity
20 / 25 / 32 / 40 / 50M(A)
63 / 80 / 100 / 125M(A)
200M(A)
250M(A)
(4)
Code
Used for gas superheated degree control while in
Y1E cooling operation or subcooled degree control while
in heating operation.
R1T Used for thermostat control.
Used for gas superheated degree control while in
R2T cooling operation or subcooled degree control while
in heating operation.
Used for gas superheated degree control while in
R3T
cooling operation.
(mm)
GAS Liquid
φ12.7 φ6.4
φ15.9 φ9.5
φ19.1 φ9.5
φ22.2 φ9.5
Si34-601A
Gas piping connection port
Flare connection : φ15.9 or less
Attached piping : Above φ19.1
Liquid piping connection port
(Flare connection)
DU220-602J
Main function
Appendix