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IOM
IOM
15.2
TWO STAGE THERMOSTAT
When connecting a two stage thermostat, the jumper (P5) must
be in the "NONE" position. The control runs high heat from the
thermostat W2 demand.
FIGURE 31 - THERMOSTAT CONNECTION DIAGRAM
THERMOSTAT
Y C G R W
15.3
THERMOSTAT LOCATION
The thermostat should be located approximately 5 feet (1524mm) above the fl oor, on an inside wall where there
is good natural air circulation, and where the thermostat will be exposed to average room temperatures. Avoid
locations where the thermostat will be exposed to cold drafts, heat from nearby lamps or appliances, exposure to
sunlight, heat from inside wall stacks, etc.
W415-2308 / B / 11.04.19
FIGURE 30 - THERMOSTAT CONNECTION DIAGRAM
THERMOSTAT
Y C G R W
RCU
W
Y C
1
2
RCU
Y C
Y
Y
R C G W
2
1
H53.3
IFC
Y
Y
R C G W
W
2
1
1
H24.17
IFC
W
1
2
H24.16
FIGURE 32 - JUMPER P5
2
H53.2
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