Indoor Unit - Daikin RXYQ-TA Series 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, FXFQ-P, FXHQ-M
Indoor heat exchanger
Fan
(3)
(2)
Filter Filter
(1)
FXUQ-P, FXEQ-P, FXMQ-M, FXAQ-P, FXLQ-M,
FXNQ-M
Indoor heat exchanger
Fan
(3)
(2)
Filter Filter
(1)
15
Symbol
Except
FXMQ-PB, FXMQ-PB
FXTQ-TA
Y1E Y1E
R1T R1T
R2T R2T
R3T R3T
— R4T
Gas piping
connection port
(4)
Liquid piping
connection port
C: 4D024460M
Gas piping
connection port
(4)
Liquid piping
connection port
C: 4D034245P
FXTQ-TA
Used for gas superheated degree control while
Y1E in cooling or subcooled degree control while in
heating.
R1T (∗1) Used for thermostat control.
Used for gas superheated degree control while
R2T in cooling or subcooled degree control while in
heating.
Used for gas superheated degree control while
R3T
in cooling.
— Used for discharge air temperature control.
FXZQ-M
Indoor heat exchanger
Fan
(3)
(2)
Filter Filter
(1)
FXDQ-M
Gas piping connection port
Liquid piping connection port
(3)
Filter
(4)
Indoor heat exchanger
SiUS341615E
Function
Gas piping
connection port
(4)
Liquid piping
connection port
C: 4D040157B
Filter
(1)
(2)
Fan
C: 4D043864N
Refrigerant Circuit