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FIGURE 31 - THERMOSTAT CONNECTION DIAGRAM
IOM
IOM
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.
15.4
FURNACE PAIRED WITH HEAT PUMP
With installation applications that combine a furnace and a heat pump
in conjunction with a thermostat which features dual fuel use, the
JW39 jumper on the furnace control board must be cut. If the jumper is
left intact, terminal "O" will remain energized effectively eliminating the
cooling mode of the heat pump.
16.0 OPTIONAL ACCESSORIES (FIELD SUPPLIED/
INSTALLED)
16.1
ELECTRONIC AIR CLEANER
The integrated furnace control has provisions to supply power and control an electronic air cleaner rated at
120VAC, 1.0 amp max. 120 volt power will be available at these terminals whenever the
circulating fan is operating in the heating or cooling fan modes.
16.2
POWER HUMIDIFIER
The integrated furnace control has provisions to supply power and control a line voltage humidifi er or the
primary of a 120 / 24 volt humidifi er step down transformer, rated at 120VAC, 1.0 amp max.
NOTE
All HUM and EAC terminals are 120V. Do not directly connect 24V equipment to these terminals.
W415-2379 / B / 09.22.20
RCU
W
Y C
Y
1
2
2
Cut JW39 for heat pump
IFC
Y
R C G W
W
1
1
2
H24.17
FIGURE 32 - JUMPER P5
H53.2
H53.5
H20.1.1
H20.2
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