ClimateMaster TMW036 - Electrical - Low Voltage

THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tranquility
®
Water-to-Water (TMW) Series
Rev.: 04/15/16
19
climatemaster.com
Electrical - Low Voltage
Thermostat Connections - The aquastat/thermostat
should be wired directly to the CXM/DXM board as
shown in Figure 6a for TMW036-060 and Figure 6b for the
TMW120. Note the TMW second stage is wired directly
to the CXM #2.
Low Water Temperature Cutout - LT1 - The CXM/
DXM control allows the fi eld selection of source fl uid low
temperature cutout points. The factory setting of LT1
is set for water (30°F). In cold temperature applications
jumper JW3 (LT1- antifreeze 10°F) should be clipped as
shown in Figure 7 to change the setting to 10°F, a more
suitable temperature when using antifreezes. It should
be noted that the extended range option should be
specifi ed to operate the TMW Series at entering water
temperatures below 60°F.
Figure 6a. TMW036-060 Low Voltage Field Wiring
(CXM shown)
Figure 6b: TMW120 Low Voltage Field Wiring
(CXM shown)
Figure 7: Changing LT1-Low Water Temperature Cut-
out Setpoint
LT1
LT2
JW3-LT1 jumper
should be clipped when
antifreeze is used.
CXM Board
Capacitor
Transformer
CXM Control
Contactor -CC
Low Voltage
Connector
CB
L2
L1
Low Voltage
Wiring
Contactor -CC1
Transformer
Grnd
L2
L3
L1
Contactor -CC2
CXM Control #2
Power Distribution
Block
CXM Control #1
Low Voltage
Wiring
Second Stage Call
(Not needed on DXM Models
all low voltage wires to DXM #1)
Low Voltage
Connector
Low Voltage
Connector