Instruction manual
45
NOTES:
1.
Set heat anticipator on room thermostat at 0.7 amps.
2. Manufacturer’s specified replacement parts must be used
when servicing.
3. If any of the original wire as supplied with the furnace must be
replaced, it must be replaced with wiring material having a
temperature rating of at least 105ºC. Use copper conductors
only.
4. If heating and cooling blower speeds are not the same,
discard jumper before connecting blower leads. Unused
blower leads must be placed on “PARK” terminals of
integrated control or taped.
5. Furnace must be permanently grounded and conform to NEC
and local codes.
6. To recall the last 5 faults, most recent to least recent, depress
switch for more than 2 seconds in standby (no thermostat
inputs).
WIRING DIAGRAM—WGFM195
Check codes for proper wiring and circuit protection before installation.
HIGH VOLTAGE!
WARNING
Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage, personal injury or death.
R
O
R
(
M
E
D
L
O
W
)
B
U
(
M
E
D
)
R
(
L
O
W
)
C
P
M
C
G
W
T
H
(
3
)
L
I
N
E
-
H
X
F
M
R
-
H
G
N
D
L
N
O
R
G
Y
R
B
U
B
K
N
O
C
G
Y
B
K
O
R
G
G
N
D
1
1
5
V
A
C
2
4
V
A
C
B
K
G
N
D
L
N
W
1
O
R
G
N
D
W
R
W
G
N
D
N
O
B
K
(
H
I
)
B
R
B
R
Y
W
Y
L
B
U
P
R
R
O
R
P
K
B
K
W
W
C
F
S
H
I
H
E
A
T
-
H
L
O
H
E
A
T
-
H
I
N
D
I
G
N
E
A
C
-
H
1
1
5
V
A
C
2
4
V
A
C
G
N
D
R
O
1
(
5
)
R
O
2
(
1
1
)
H
L
O
(
1
)
H
L
I
(
7
)
M
V
C
(
9
)
G
N
D
(
8
)
T
R
(
6
)
OR
W
W
BU
Y
OR
RD
G
BR
P
K
PU
GY
W
H
BK
BK
G
Y
C
G
Y
W
R
2
W
O
R
B
L
Y
L
O
R
O
R
G
Y
P
R
R
O
R
G
Y
W
H
G
Y
O
R
G
R
B
R
1
2
3
1
2
1
1
1
0
9
8
7
6
5
4
2
4
V
A
C
2
4
V
A
C
P
S
O
(
4
)
M
V
L
(
2
)
P
S
(
1
0
)
C
N
O
C
N
O
FS
1
2
3
H
I
B
R
OR
P
M
C
H
I
M
V
H
(
1
2
)
*
*
*
CO OL -H
G
Y
Y
B
K
P
R
G
Y
(
H
oneyw
ell)
Wiring is subject to change.
Always refer to the wiring
diagram on the unit for the
most up-to-date wiring.
Low Voltage (24V)
High Voltage (115V)
Junction
Terminal
Internal To
Integrated Control
Plug Connection
Equipment GND
Field GND
Field Splice
Switch (Temp.)
Igniter
Pressure Switch
Overcurrent
Prot. Device
High Voltage Field
Gray GY
White W
Black BK
Red R
Blue BU
Orange OR
Yellow Y
Green G
Pink PK
Azure A
Violet V
Brown BR
Color Symbol
Low Voltage Field
0
C
7
6
5
4
3
2
1
8
Steady On =
Off =
1 Flash =
2 Flashes =
3 Flashes =
4 Flashes =
5 Flashes =
6 Flashes =
7 Flashes =
8 Flashes =
Continuous/
Rapid Flashes =
Normal Operation
Control Failure
System Lockout (Retries Exceeded)
Pressure Switch Stuck Closed
Pressure Switch Stuck Open
Open High Limit Switch
Flame Sense without Gas Control Valve
Open Rollout Limit Switch or Open Fuse
Low Flame Signal
Check Igniter or Improper Grounding
Reversed 115 VAC Polarity
Hum
idifier
24V Therm
ostat
Connections
ON OFF
Integrated
Control
Module
Fuse
2nd
Stage
Delay
Mode
Heat
Off
Delay
Factory Settings Shown
Diagnostic
LED
See Note 6
XFMR-H
115 V
A
C
H
O
T
and P
A
R
K
Term
inals
HEAT-H
COOL-H
LINE-H
See Note 4
115 VAC Neutral
Terminals
Capacitor
Circulator
Blower
Blower Compartment
Burner Compartment
Manual Reset
Auxiliary Limits
1. In upflow blower
deck
2. In counterflow
blower housing
Induced Draft Blower
Auto Reset
Primary Limit
Control
Induced Draft
Blower Pressure
Switch
Manual Reset Rollout Limit (Control(s)
(Single Control On 45k Btu)
Humidifier
Front Cover
Pressure Switch
12-Circuit
Connector
Hot
Surface
Igniter
Gas Control Valve
Door
Switch
To 115 VAC/10/60 Hz Power Supply
with Overcurrent Protection Device
WARNING:
Disconnect Power
Before Servicing.
Wiring to Unit Must
Be Properly Polarized
and Grounded.
WARNING: Disconnect Power Before Servicing.
Wiring to Unit Must Be Properly Polarized
and Grounded.
Junction Box
Flame
Sensor
Disconnect
To 115 VAC/10/60 Hz
Power Supply with
Overcurrent Protection
Device
Integrated C
ontrol M
odule
Integrated C
ontrol M
odule
Flame Sensor
Hot Surface Igniter
Induced Draft
Blower
Circulator
Blower
Electronic
Air Cleaner
Junction Box
Line N
eutrals
Disconnect
Blower Com
partm
ent
Door Switch
(Open W
hen
Door Open)
Integrated
Control M
odule
24V
Therm
ostat at C
onnections
Gas
Control
Valve
Induced Draft
Blower Pressure
Switch
Front Cover
Pressure Switch
To
M
icro
Manual Reset Auxiliary
Limit Controls
Auto Reset
Prim
ary
Lim
it
Control
Manual Reset Rollout
Limit Control(s)
(Single Control on 45k Btu)
40 VA
Transformer
Hum
idifier