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 TM9 4120-423-14&P
5
Voltage should be 185 to 229 Vac in all three places.
6
Check power input voltage between relay terminals: A1 and B1, B1 and C1, A1 and C1 Voltage
should be 185 to 229 Vac in all three phases.
7
Using multimeter, check relay control voltage between X1 and X2.
8
Voltage should be 12 to 31 Vdc.
9
Turn selector switch to OFF.
10
The K2 relay controls the condenser fan motor.
11
Check to see that P12 and P13 connector plugs are connected at back of electrical module cover.
12
Connect power to air conditioner.
13
Turn mode selector switch to COOL and temperature control to maximum COOLER. Using
multimeter, check relay output voltage between: A2 and B2, B2 and C2, A2 and C2.
14
Voltage should be 185 to 229 Vac in all three places.
15
Check power input voltage between relay terminals: A1 and B1, B1 and C1, A1 and C1 Voltage
should be 185 to 229 Vac in all three phases.
16
Using multimeter, check relay control voltage between X1 and X2.
17
Voltage should be 12 to 31 Vdc.
18
Turn selector switch to OFF.
19
The phase sequence monitor (K7) controls the proper phasing, in ABC sequence, to the
compressor from the generator set.
20
Check to see that P12 and P13 connector plugs are connected at back of electrical module cover.
21
Connect power to air conditioner.
22
Turn mode selector switch to COOL and temperature control to maximum COOLER. Using
multimeter, check terminals L1, L2, and L3.
23
Voltage should be 197 to 229 Vac in all three places.
24
Check power input voltage between C1 and K1-X2, C and K1-X2. Voltage should be 12 to 31
Vdc.
0051 00-5
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