ClimateMaster Tranquility Digital - Electrical Component Checks; Compressor Contactor Voltage Check; Verifying Contactor

29
Troubleshooting Guide - Tranquility
®
Digital (DXM2) Packaged Units
Rev.: 01/15/14
Compressor Contactor Voltage Check
A-K
A-K
Check CCH for 24 volts
(Second Stage Operation)
A-L
A-L
Verify that 24 volts
are going to the
compressor contactor.
Also verify that
contactor has
between 7-20 ohms.
Verifying Contactor
A-M
A-M
Comp
Relay
24Vdc
EH1
EH2
P6
JW3
CO
RV RV
LT2 LT2
P7
CC
CCG
CO
12
1 4
On
P10
T3 T4 T4
T5
P9
T5
T6 T6
2
RV
Relay
CCH
Relay
12345678
18-31.5
Volts AC
Off On
A
Acc1
Relay
Acc2
Relay
H
COM
NC1
NO1
COM
NC2
NO2
P3
R R
S1
Factory Use
COH
COM
AO2
P11
Gnd
T1 T2
A0
Off On
S3
1 2 3 4
1 2 3 4 5 6 7 8
18-31.5
Volts AC
Blue Blue
18 - 31.5
Volts A/C