GC9C96 Service Manual

SYSTEM OPERATION
12


  R RGT  TT T R TR T
B T  T T   T T R T JT
BX
T
  R T RK  TR RG T JT
BX  T T   BK R T
Connect hot, neutral, and ground wires as shown in the wiring
diagram located on the unit’s blower door. Metal conduit
is not considered a substitute for an actual ground wire to
the unit. Line polarity must be observed when making eld
connections. Line voltage connections can be made through
either the right or left side panel.
The furnace is shipped congured for a right side (left side
for counterow) electrical connection with the junction box
located inside the burner compartment. To make electrical
connections through the opposite side of the furnace, the
junction box must be relocated to the other side of the burner
compartment prior to making electrical connections.
N Wire routing must not interfere with circulator
blower operation, lter removal, or routine maintenance.

T
  T RK  TR K JR R T T
R T B TR GR  R T 
 R  TR B T T TT T  T

T

TR



G TG

T

R BR RG R
GG  TR RG

T R
R  B RT

R T    
RRT G R JR R T


1.0 Amp maximum at 120 VAC
 1.0 Amp maximum at 120 VAC

The integrated control module electronic air cleaner terminals
(EAC) are energized with 115 volts whenever the circulator
blower is energized.

 Low voltage connections can be made through either
the right or left side panel. Wire routing must not interfere
with circulator blower operation, lter removal, or routine
maintenance.
A 40 V.A. transformer and an integrated electronic control
are built into the furnace to allow use with most cooling
equipment. Consult the wiring diagram located in this manual,
the installation manual, or on the blower door for further details
of 115 Volt and 24 Volt wiring.

Y
C
Y
C
G
R
W
Y2
Y/Y1
C
G
R
W/W1
W2
ROOM THERMOSTAT
INTEGRATED FURNACE
CONTROL MODULE
REMOTE COOLING UNIT
(SINGLE STAGE)
Thermostat - Single -Stage Heating with Single-Stage Cooling
Thermostat - Single -Stage Heating with Single-Stage Cooling
 To apply a single-stage Heating Thermostat, the staging option
must be set on single-stage.

Y
C
Y
C
G
R
W/W1
Y2
Y/Y1
C
G
R
W/W1
W2
ROOM THERMOSTAT
INTEGRATED FURNACE
CONTROL MODULE
REMOTE COOLING UNIT
(SINGLE STAGE)
W2
Thermostat - Two-Stage Heating with Single-Stage Cooling

Y1
C
Y1
C
G
R
W1
Y2
Y/Y1
C
G
R
W/W1
W2
ROOM THERMOSTAT
INTEGRATED FURNACE
CONTROL MODULE
REMOTE COOLING UNIT
(TWO STAGE)
W2
Y2
Y2
Thermostat - Two-Stage Heating with Two-Stage Cooling


A single-stage heating thermostat may be used to control this
furnace; however, the furnace is setup by default to use a
two-stage heating thermostat. To use a single stage heating
thermostat the installer must make the desired selections in
the user menus using the push button switches on the control
board. When a single stage heating thermostat is used there
are two options for controlling the timed transition from low to
high re: 1) Auto 2) Fixed Time.
• Press the Left or Right menu switches to get to the
• AHS menu.
• The menu will display these options: no10203060AUt