Outdoor Unit Control Pcb; Outdoor Unit Control Pcb A747035 - Panasonic U-8ME1E81 Service Manual

1. Outdoor Unit Control PCB

1-1. Outdoor Unit Control PCB A747035

SW1
DEMAND
FORCED
STOP
CT2, CT3
CTL2,
CTL1
SW2
SW3
SW4
1
HIC1
SW7
LED3
EEPROM
2
memory IC
(IC14)
HIC2
3
LED4
Liquid temp.
sensor at heat
exchanger 1, 2
4
EXL1,2(CN60)
Terminal
plug
(CN67)
5
EMG plug
(CN69)
RC plug
(CN73)
6
RC1
plug
(CN75)
OC plug
(CN76)
7
8
Snow
senser
STOP pin A. ADD pin
(CN34) (CN28) (CN30)
Comp.
Oil detection
discharge
sensor
3 temp.
OIL1,2,3(CN54)
DISCH3(CN59)
RUN pin AP pin
HIC3 (CN27) (CN24)
High-pressure Suction
sensor temp.
HPS(CN46) SCT(CN65)
Fig. 4-1
4-2
2WAY SYSTEM
PCB Settings
CHK pin TEST pin
(CN23) (CN22)
DEF pin
(CN25)
MODE pin
(CN40)
SW6
SW5
SW8
Alarm LED
LED1
LED 2
Low-pressure
sensor
LPS(CN49)
Gas temp.
sensor
at heat
exchanger 1, 2
EXG1,2(CN61)
Comp.
discharge
2 temp.
DISCH2(CN56)
Comp.
discharge
1 temp.
DISCH1(CN55)