Indoor Unit - Daikin REYQ-XA Service Manual

Refrigerant Circuit
1.2

Indoor Unit

No. in piping
Name
diagram
Electronic expansion
(1)
valve
(2) Suction air thermistor
(3) Liquid pipe thermistor
(4) Gas pipe thermistor
(5) Discharge air thermistor
∗1. R1T is for remote controller thermistor or optional remote sensor.
FXFQ-T,FXHQ-M
Indoor heat exchanger
(2)
Fan
(3)
Filter (1) Filter
FXUQ-P, FXEQ-P, FXSQ-TA, FXMQ-M, FXAQ-P,
FXLQ-M, FXNQ-M
Indoor heat exchanger
Fan
(3)
(2)
Filter (1) Filter
65
Symbol
Except
FXMQ-PB,
FXMQ-PB
FXTQ-TA,
CXTQ-TA
Y1E Y1E
R1T R1T
R2T R2T
R3T R3T
— R4T
Gas piping
connection port
(4)
Liquid piping
connection port
C: 4D024460P
Gas piping
connection port
(4)
Liquid piping
connection port
C: 4D034245R
FXTQ-TA,
CXTQ-TA
Used for gas superheating degree control while
Y1E in cooling or subcooling degree control while in
heating.
R1T (∗1) Used for thermostat control.
Used for gas superheating degree control while
R2T in cooling or subcooling degree control while in
heating.
Used for gas superheating degree control while
R3T
in cooling.
— Used for discharge air temperature control.
FXZQ-TA
(2)
(4)
(3)
(1)
FXDQ-M
Gas piping connection port
Liquid piping connection port
(3)
Filter
(4)
Indoor heat exchanger
SiUS371901E
Function
C: 4D110602
Filter
(1)
(2)
Fan
C: 4D043864N
Refrigerant Circuit