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The integrated control module single humidifier terminal (HUM) is energized with 115 volts whenever the induced draft blower is
energized. This terminal can also be used to provide 115 volt power to a humidifier transformer. The remaining primary
transformer wire would be connected to the Line N on the control board. The integrated control module electronic air cleaner
terminals (EAC) are energized with 115 volts whenever the circulator blower is energized.
NOTE: Wire routing must not to interfere with circulator blower operation, filter removal, or
routine maintenance.
J
B
R
UNCTION
OX
ELOCATION
Line voltage connections can
be made through either the
right or left side panel. The
furnace is shipped config-
ured for a left side electri-
cal connection. To make
electrical
connections
through the opposite side of
the furnace, the junction box
must be relocated to the left side prior to making electrical connections. To relocate the
junction box, perform the following steps.
1. Remove the burner compartment door.
2. Remove and save the two screws securing the junction box to the side panel.
3. Relocate junction box and associated plugs and grommets to opposite side panel. Secure
with screws removed in step 2.
To ensure proper unit grounding, the ground wire should run from the furnace ground screw located inside the furnace junction box
all the way back to the electrical panel. NOTE: Do not use gas piping as an electrical ground. To confirm proper unit grounding,
turn off the electrical power and perform the following check.
1. Measure resistance between the neutral (white) connection
and one of the burners.
2. Resistance should measure 10 ohms or less.
This furnace is equipped with a blower door interlock switch which
interrupts unit voltage when the blower door is opened for servic-
ing. Do not defeat this switch.
24 V
T
W
OLT
HERMOSTAT
Low voltage connections can be made through either the right or
left side panel. Thermostat wiring entrance holes are located in
the blower compartment. The following figure shows connections
for a "heat/cool system".
This furnace is equipped with a 40 VA transformer to facilitate use
with most cooling equipment. Consult the wiring diagram, lo-
cated on the blower compartment door, for further details of 115
Volt and 24 Volt wiring.
S
-S
H
T
INGLE
TAGE
EATING
A single-stage thermostat with only one heating stage is
needed to control this furnace.
F
F
A
OSSIL
UEL
PPLICATIONS
This furnace can be used in conjunction with a heat pump in a
fossil fuel application. A fossil fuel application refers to a com-
HIGH VOLTAGE !
T
O AVOID PERSONAL INJURY OR DEATH DUE TO
,
ELECTRICAL SHOCK
DISCONNECT ELECTRICAL POWER
BEFORE SERVICING OR CHANGING ANY ELECTRICAL
.
WIRING
Humidifier
Electronic Air Cleaner
IRING
A
HERMOSTAT
PPLICATION
WARNING
1.0 Amp maximum at 120 VAC
1.0 Amp maximum at 120 VAC
E
DGES OF SHEET METAL HOLES MAY BE SHARP
PRECAUTION WHEN REMOVING HOLE PLUGS
T
O PREVENT PERSONAL INJURY OR DEATH DUE TO ELECTRIC SHOCK
DISCONNECT ELECTRICAL POWER BEFORE INSTALLING OR SERVICING THIS
.
UNIT
HIGH VOLTAGE !
T
O AVOID THE RISK OF INJURY
,
DEATH
THE FURNACE MUST BE ELECTRICALLY
GROUNDED IN ACCORDANCE WITH LOCAL CODES OR IN
,
THEIR ABSENCE
WITH THE LATEST EDITION OF THE
N
E
ATIONAL
LECTRIC
T
O AVOID THE RISK OF INJURY
FURNACE MUST BE ELECTRICALLY GROUNDED IN ACCORDANCE WITH
,
LOCAL CODES OR
IN THEIR ABSENCE
N
E
ATIONAL
LECTRICAL
24
Figure 29
WARNING
. U
SE GLOVES AS A
.
WARNING
WARNING
,
ELECTRICAL SHOCK OR
C
.
ODE
WARNING
,
ELECTRICAL SHOCK OR DEATH
,
WITH THE LATEST EDITION OF THE
C
.
ODE
,
,
THE
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