ClimateMaster Tranquility Digital - Blower Voltage and Modulating Valve Configuration; Checking Blower Line Voltage; Modulating Valve Configuration Fix

Troubleshooting Guide - Tranquility
®
Digital (DXM2) Packaged Units
Rev.: 01/15/14
44
Geothermal Heat Pump Systems
Checking Blower Line Voltage
B-I
B-I
For a Modulating Valve that
Loses Configuration on Thermostat
B-J
B-J
In order to have your thermostat acknowledge
that the unit has a modulating valve instead
of incorrectly showing a variable-speed pump,
connect a piece of thermostat wire between C and
T1 so the DXM2 board does not see feedback.
Alarm
Relay
Off On
A
OVR
ESD
C R
NSB
AL2
JW1
Acc1
Relay
Acc2
Relay
H
COM
NC1
NO1
COM
NC2
NO2
P3
Status
Fault
R R
S1
S2
Factory Use
Micro
U1
Off On
P2
COH
COM
AO2
P11
Gnd
T1
P10
T2 T2 T3 T3 T
A0-1 A0-2
Off On
S3
1 2 3 4
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
208-
240V