Troubleshooting; Pcb Printed Diagram - Tadiran Telecom SUV2-H18/1CFA-N Service Manual

8. Troubleshooting

8.1 PCB Printed Diagram

Outdoor Unit(18K)
● Top View
1
NO. Silk scren name
1 U (BU) V (YE) W (RD)
2 OUTFAN1
3 P-SW
4 OVL
5 EEV-BL
6 EEV-WH
7 TEMP
8 TUBE
9 HEAT-B
10 HEAT-G
11 F-WAY
12 OUTFAN2
13 GOM-BL
14 GOM-WH
15 AG L
16 AG N
17 PE
18 RE-1.RE-2
18
Connector
Compressor power line interface
DC fan interface
Pressure switch interface
Overload interface
E l e c ! r o n i c e x p a n s i o n v a l v e
in!erface
E l e c ! r o n i c e x p a n s i o n v a l v e
in!erface
Temp testing interface
Pipe temp testing interface
Chassis electrical heater inteace Connect chassis electrical heater belt
Compressor elec!rical hea!er
in!erface
4- ay-valve interface
AC fan interface
Communication interface
Communication interface
Power live wire inteace
Power naught wire interface
Earth wire inteace
Reactor interface
2
6
3 4 7
5
8
16
17
Connect compressorU(BU) connect blue V
(YE) connect yellow W(RD) connect red
Connect outdoor DC fan
Connect pressure switch (Reserve)
Connect compressor overload (Reserve)
Connect nO.1 electronic expansion valve
black interface
Connect no.2 electronic expansion valve
white interface
Connect temp sensor
Connect 1&2 pipe temp sensor
Connect compressor electrical heater belt
Connect 4 tay-valve
Connect outdoor AC fan
NO.1 communication interfaceblack
NO.2 communication interfacewhite
Connect power live wire
Connect power naught wire
Connect earth wire
Connect reactor
Troubleshooting Troubleshooting
10
9 11
function note
12
13
14
15
41