Daikin RXYQ5PY1, Service Manual

Page: 247 / 355

SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P)
Installation Manual 241
1.7.4 Transmission Wiring Connection Procedure
! Referring to figure 21, 22 connect the transmission wiring between outdoor unit and indoor
unit, outdoor unit and outdoor unit of other system, outdoor unit and outdoor unit of same
system (only multi system) or to COOL/HEAT selector (except RXQ-P).
A B C
A F1 F2 F1 F2 Q1 Q2 B C
A5P A1P
TO IN/D UNIT TO OUT/D UNIT TO MULTI UNIT
F1 F2 F1 F2 F1 F2
figure 21
Connection example for single system
Outdoor unit
Indoor unit
3
1
1
COOL/HEAT selector
Never connect
the power wire
Match up
terminal symbols.
(Has polarity)
Use duplex
wires
To outdoor unit of
other system
A F1 F2 F1 F2 Q1 Q2 Q1 Q2 B C
A5P A1P A1P
TO IN/D UNIT TO OUT/D UNIT TO MULTI UNIT TO MULTI UNIT
3 1 1
2
COOL/HEAT selector
To outdoor unit of
other system
Outdoor unit A
(Master unit)
Outdoor unit B
(Sub unit)
Connection example for multi system
To indoor unit
figure 22