507762-01
Issue 1907
Page 38 of 46
connected to this terminal with the neutral leg of the circuit
being connected to one of the provided neutral terminals. If
a humidifier rated at greater than one amp is connected to
this terminal, it is necessary to use an external relay relay.
One 24V “H” 1/4” spade terminal is provided on the furnace
integrated control. See Figure 60 for integrated control
configuration. The terminal is energized in the heating
mode when the combustion air inducer is operating and
the pressure switch is closed. Any humidifier rated up to
0.5 amp can be connected to this terminal with the ground
leg of the circuit connected to ground or the “C” terminal.
Install the room thermostat according to the instructions
provided with the thermostat. See Figure 61 for thermostat
designations. If the furnace is being matched with a
heat pump, refer to the FM21 installation instruction or
appropriate dual fuel thermostat instructions.
Indoor Blower Speeds
1. When the thermostat is set to “FAN ON,” the indoor
blower will run continuously on the fan speed (FAN)
when there is no cooling or heating demand.
2. When the 95G1UHEX is running in the heating mode,
the indoor blower will run on the heating speed (HEAT).
3. When there is a cooling demand, the indoor blower will
run on the cooling speed (COOL).
Generator Use - Voltage Requirements
The following requirements must be kept in mind when
specifying a generator for use with this equipment:
•
The furnace requires 120 volts + 10% (Range: 108
volts to 132 volts).
•
The furnace operates at 60 Hz + 5% (Range: 57 Hz
to 63 Hz).
•
The furnace integrated control requires both polarity
and proper ground. Both polarity and proper grounding
should be checked before attempting to operate the
furnace on either permanent or temporary power.
•
Generator should have a wave form distortion of less
than 5% THD (total harmonic distortion).
BLOWER OFF DELAY
RED LED RECALL BUTTON
Figure 60. Integrated Control
(Automatic Hot Surface Ignition System)
1/4” Quick Connect Terminals
120HUM
Humidifier 120VAC
LINE
120VAC
XFMR
Transformer 120VAC
CIRC
Indoor blower 120VAC
EAC
Indoor air quality accessary 120VAC
NEUTRALS
Common 120VAC
HUM24
Humidifier 24VAC
3/16” Quick Connect Terminals
COOL
Cooling tap 24VAC
HEAT
Heating tap 24VAC
FAN
Continuous blower 24VAC
PARK (no power)
Park terminal for speed taps
FS
Flame sense
24 COM
Common 24VAC
Table 10.