Outdoor Unit; Rmxs48Lvju - Daikin RMXS-L Series Service Manual

SiUS181305E

1. Outdoor Unit

1.1

RMXS48LVJU

A1P: Main PCB
1) X5A
2) X11A
3) X12A
4) X13A
5) X17A
6) X18A
7) X21A
8) X22A
9) X25A
10)X26A
11)X27A
12)X28A
13)X32A
14)X37A
15)X66A
16)X81A
17)X106A
18)X107A
19)X111A
20)LD, LE
21)LC, NC
22)P
23)N
24)U, V, W
25)F4U
26)F6U
27)HAP
28)HBP
Printed Circuit Board Connector Wiring Diagram
Connector to service PCB (A2P)
Connector for outdoor temperature thermistor
Connector for thermistors
(suction pipe 1, suction pipe 2, outdoor heat exchanger,
discharge pipe)
Connector for thermistors (subcooling outlet, liquid pipe)
Connector for high pressure sensor
Connector for low pressure sensor
Connector for electronic expansion valve coil (main)
Connector for electronic expansion valve coil (subcooling)
Connector for solenoid valve coil (four-way valve)
Connector for solenoid valve coil (hot gas bypass valve)
Connector for solenoid valve coil (unloading)
Connector for crankcase heater
Connector for high pressure switch
Connector for power supply for optional PCB (16 VDC)
Connector for cool / heat selector PCB (A4P)
Connector for terminal board (inter-unit wiring)
Connector for fan motor (upper)
Connector for fan motor (lower)
Connector for radiation fin thermistor
Connector for reactor
Terminal for noise filter PCB (A3P)
Connector for capacitor C4 +
Connector for capacitor C4 –
Connector for compressor
Fuse (6.3 A / 250 V)
Fuse (5.0 A / 250 V)
Operation pilot lamp (LED for service monitor: green)
Inverter pilot lamp (LED for service monitor: green)
Outdoor Unit
14