Tadiran Telecom SUV2-H18/1CFA-N, Service Manual

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Troubleshooting Troubleshooting
Outdoor Unit(24K/28K)
● Top View
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NO. Silk scren name Connector function note
1 U (BU) V (YE) W (RD) ompressor power line interface
"Connect compressorU(BU) connect blue
(YE) connect yellow W(RD) connect red"
2 P-SW Pressure switch interface Connect pressure switch (Reserve)
3 OVL Overload interface Connect compressor overload (Reserve)
4 EEV-BK
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 Connect nO.1 electronic expansion valve
black interface
5 EEV-WH
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 Connect no.2 electronic expansion valve
white interface
6 EEV-RD
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 Connect nO.3 electronic expansion valve
red interface
7 EEV-BU
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 (CRoensneerved)n 4electmnlc expansion
valve blue inter ce
8 TUBE3-4 Pipe temp testing interface Connect nO.3 temp sensor
9 TEMP rremp sensor interface Connect temp sensor
10 TUBE1-2 Pipe temp testing interface Connect no 1 2 pipe temp sensor
11 OUTFAN Fan interface Connect outdoor fan interface
12 F-WAY 4-way-valve interface Connect 4-way-valve
13 HEAT-G
Compressor elec!rical hea!er
in!erface
Connect compressor electrical heater belt
14 HEAT-B Chassis electrical heater interface Connect chassis electrical heater belt
15 GOM-BL Communication inteace NO.1 communication interfaceblack
16 Communication inteace NO.2 communication interfacewhite
17 GOM-RD Communication interface NO.3 co 1 lunication interfacered
18 GOM-YE Communication interface
No.4 communication interfaceyellow
(Reserve
19 AC L Power live wire Connect power live wire
20 AC N Power naught wire Connect power naught wire
21 PE Earth wire interface Connect earth wire
22 RE-1RE-2 Reactor interface Connect reactor