Dxm2 Controls - ClimateMaster Tranquility 30 Digital TE Series Installation, Operation & Maintenance Instructions Manual

DXM2 iGate Controller DXM2 is the next generation in
™
controls and is capable of 2-way communication with smart
components, like the communicating iGate
fan motor, Variable-Speed Pump and configuration/diagnostic
tool.
For most residential applications, configuration, monitoring and
diagnostics can all be done from the thermostat/ service tool so
there's no need to read LEDs and change DIP switches.
For details on user settings, refer to iGate
Thermostat User Manual (part # 97B0055N02).
For details on Installer settings (not to be used by
consumers), refer to iGate
™
Installer manual (part # 97B0055N03).
For details on installer/service settings on the iGate
configuration/diagnostic tool, refer to operation manual (part
# 97B0106N01).
For further details on the DXM2 control, refer to the DXM2
Application, Operation and Maintenance Manual (part #
97B0003N15). The DXM2 AOM is shipped with each unit.
Thermostat compatibility
It is strongly recommended that iGate
thermostat (ATC32U**) or iGate
tool (ACDU**) be used with DXM2 control, to ensure easy
configuration, monitoring and diagnostics, in PLAIN English.
For example, Airflow CAN NOT be configured without either
the communicating thermostat or configuration/ diagnostic
tool
Field Hardware Configuration Options - Note: In the
following field hardware configuration options, changes
should be made ONLY when power is removed from the
DXM2 control.
Water coil low temperature limit setting: Jumper 3 (JW3-
LT1 Low Temp) provides field selection of temperature limit
setting for LT1 of 30°F or 10°F [-1°F or -12°C] (refrigerant
temperature).
Not Clipped = 30°F [-1°C]. Clipped = 10°F [-12°C].
A0-2: Configure Modulating Valve or Variable-Speed
Pump (Internal water flow Models Only)
A0-2 jumper (Figure 32) Factory Set to "IOV" if using Internal
Modulating Motorized Valve or "PMW" if using Internal
Variable-Speed Pump. This applies only to units with Internal
Water Flow Control.
⚠
CAUTION!
CAUTION! Do not restart units without inspection and
remedy of faulting condition. Equipment damage may occur.
Tranquility
thermostat, ECM
™
Communicating
™
Communicating Thermostat
™
communicating
™
configuration/ diagnostic P1
™
Y1
Y2
W
O
G
R
C
AL1
P2
AL2
R
NSB
C
ESD
7"
OVR
H
A
P3
R
NO1
⚠
NC1
COM
NO2
NC2
COM
R
c l i m a t e m a s t e r . c o m
30 Digital ( TE) Series IOM - 60Hz HFC-410A
®
DIP Switches – There's no need to change the DIP switches
settings on Residential units. All DIP switches in S1 and
S2 should be "on". In S3, S3-1 should be "on" and the rest
should be "off". For more details on DIP switches, refer to the
DXM2 AOM (part # 97B0003N15).
DXM2 Control Start-up Operation
The control will not operate until all inputs and safety controls
are checked for normal conditions. The compressor will
have a 5 minute anti-short cycle delay at power-up. The first
time after power-up that there is a call for compressor, the
compressor will follow a 5 to 80 second random start delay.
After the random start delay and anti-short cycle delay,
the compressor relay will be energized. On all subsequent
compressor calls, the random start delay is omitted.
Test Mode Button
Test mode allows the service technician to check the
operation of the control in a timely manner. By momentarily
pressing the TEST push button, the DXM2 control enters a
20 minute test mode period in which all time delays are sped
up 15 times.
Figure 30: Test Mode Button
C
Gnd B- A+ 24V
P5
R
Pust test button to
enter Test Mode and
speed-up timing and
delays for 20 minutes.
Table 11: Unit Operation
Conventional
T-stat signal
JW1
Alarm
(Non-Communicating)
Relay
G
Fault Status
G, Y1
G, Y1, Y2
Off On
G, Y1, Y2, W
G, W
S3 G, Y1, O
Off On
G, Y1, Y2, O
1 Stage 1 = 1st stage compressor, 1st stage fan operation
Stage 2 = 2nd stage compressor, 2nd stage fan operation
Acc1
Relay
Stage 3 = 2nd stage compressor, auxiliary electric heat, 3rd
stage fan operation
S1
2 Stage 1 = 1st stage compressor, 1st stage fan operation,
reversing valve
Acc2
Stage 2 = 2nd stage compressor, 2nd stage fan operation,
Relay
reversing valve
P11
AO1 Gnd Gnd T1
AO2
R e v . : O c t o b e r 5 , 2 0 2 1

DXM2 Controls

5"
P4
(240Vac)
(240Vac)
N.O.
Com
Fan Enable Fan Speed
Test
P12
1
Unit
Micro
U1 ECM fan
Fan only
Stage 1 heating
Stage 2 heating
Stage 3 heating
Off On
Emergency heat
JW3
Stage 1 cooling
RV
Stage 2 cooling
Relay
CCH
Relay
S2
A0-1 A0-2
Comp
Relay
P10
T2 T2 T3 T3 T4 T4 T5 T5 T6 T6
N.C.
N.O.
P8
12V
IN
OUT
Gnd
NC
1
HP
HP
LP
6 1/2"
LP
1
LT1
LT1
1
Fact
LT2
voltag
LT2
1
conne
RV
unit h
RV
CO
2
12
CO
P7
2
Factor
voltage
1
24Vdc
connec
electric
harn
EH1
4
EH2
P6
CCG
CC
P9
39