53
Tranquility
®
D i g i t a l ( D X M 2 ) — Tr o u b l e s h o o t i n g G u i d e
R e v. : 1 0 M a r c h , 2 0 1 5
w w w. c l i m a t e m a s t e r. c o m
DXM2 Board Layout and Dipswitches
P1
Alarm Relay
Comp Relay
O
Y1
Y2
W
G
C
R
AL1
24Vdc
EH1 EH2
P6
R
C
Off On
JW3
A
OV
R
ESD
C
R
NSB
AL2
JW1
Acc1 Relay
Acc2 Relay
H
COM1
NC1
NO
1
COM2
NC2
NO
2
P3
CO
RV
RV
LT1 LT1 LT2 LT2
LP LP
HP
HP
P7
Status
Fault
R
R
CC
CCG
CO
S1
S2
1
12
1
4
e
s
U
y
r
o
t
c
a
F
Com
N.O.
Fan Enable
5
1/
2"
7"
6
1/
2"
5"
Use 4 mounting screws
#6 sheet metal screw 1” long
Factory lo
w
voltage mole connection for unit harness
Factory lo
w
voltage mole
x
connection for electric heat
harness
Micro
U1
Off On
P2
COH
COM
AO2
P11
Gnd
T1
P10
T2
T2
T3
T3
T4
T4
T5
P9
T5
T6
T6
A0-1
A0-2
Off On
S3
RV Relay
CCH Relay
Test
P5
B-
Gnd
P4
A+
24V
(240Vac)
Fan Speed
N.O.
N.C.
12V
OUT Gnd
P8
IN
NC
P12
Note: There is only one T1 connection
1 2 3 4
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Service tool
connection
Communicating
stat connection
Conventional
stat connection
Cabinet temperature sensor
(with variable speed pump)
24V to compressor
second-stage
solenoid for Y2/full
load capacity
Use 4 mounting screws
#6 sheet metal screw
1” long
Configure
modulating valve
or variable
speed pump
Variable
speed pump
Entering
water temp
Leaving
water temp
Leaving
air temp
Electric heat
connection
Factory low
voltage molex
connection for
unit harness
Entering Hot water
Temperature
Compressor
Discharge
Temperature
ECM Motor
Connection
Test Button
to Speed up
Time Delays
Communications
and HWG Settings
Water Coil
Low Temp
Limit Setting.
JWT-LT1 jumper
should be clipped
for low temp
(antifreeze)
operation
Accessory
relays refer
to DXM2 AOM
for configuration
(240Vac)
AO1
Gnd
(Packaged units)
