Dxm2 Layout And Connections - Heat Controller DXM2 Application And Instruction Manual

Heat Controller, Inc.
Conventional
stat connection
Cabinet
temperature
sensor
(with variable
speed pump)
Communications
and HWG
Settings
Accessory
relays refer
to DXM2 AOM
for configuration
24V to compressor
second-stage solenoid
DXM2 UNIT CONTROLS
Communicating
Service tool
stat connection
connection
C
Gnd
P1
R
Y1
Y2
W
O
G
R
C
AL1
P2
AL2
R
NSB
JW1
Alarm
Relay
C
ESD
OVR
H
A Off
S3
P3
R
NO1
NC1
Acc1
COM1
Relay
NO2
NC2
COM2
Acc2
Relay
R
P11
AO2
for Y2/full
load capacity

DXM2 Layout and Connections

P4
B- A+ 24V (240Vac)
N.O.
P5
Com
Fan Enable
Test
Micro
U1
Fault
Status
On
JW3
Off On
Off On
CCH
Relay
S2
A0-1 A0-2
S1
P10
Gnd T1 T2 T2 T3 T3 T4 T4
5
Application, Operation, & Maintenance Manual
(240Vac)
N.C.
N.O.
Fan Speed
Test Button
to Speed up
Time Delays
P8
12V
P12
IN
ECM Motor
OUT
Connection
Gnd
NC
Water Coil
Low Temp
Limit Setting.
JWT-LT1 jumper
1
HP
should be clipped
HP
for low temp
LP
(antifreeze)
LP
operation
LT1
LT1
Factory low
LT2
voltage molex
LT2
connection for
RV
unit harness
RV
CO
12
CO
P7
RV
Relay
Electric heat
1
24Vdc
connection
EH1
4
EH2
P6
Comp
Relay
CCG
Configure
modulating valve
Modulating Valve
or variable
CC
P9
speed pump
T5 T5 T6 T6
Use 4 mounting screws
#6 sheet metal screw
1" long
Confi gure
(Optional)