Wiring Diagram - Whirlpool WGFD28 Installation Instructions Manual

Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage, personal injury or death.
Equipment GND
Field GND
Field Splice
Switch ( Temp.)
Igniter
Pressure Switch
Overcurren t
Prot . Device
Low Voltage (24V)
Low Voltage Field
High Voltage (115V)
High Voltage Field
Junction
Terminal
Internal To
Integrated Control
Plug Connection
Color Symbol
Gray GY
White W
Black BK
Red R
Blue BU
Orange OR
Yellow Y
Green G
Pink PK
Azure A
Violet V
Brown BR
Wiring is subject to change.
Always refer to the wiring
diagram on the unit for the
most up-to-date wiring.
Check codes for proper wiring and circuit protection before installation.
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
38

WIRING DIAGRAM

WARNING
HIGH VOLTAGE!
Induced Draft Blower 2-Stage Pressure Switch Assembly
24V Humidifier
Hot Low-Fire Y
Surface Pressure
Igniter Switch
2-Circuit
2 1
Connector
Y
I 3 BU
2-Stage
2
Gas C BU
Control
Valve
1
PM BR
Manual Reset Rollout Limit Controls
PR
PR R
Auto Reset Primary Limit Control
PR
3
W
2 R Induced Draft Blower
1
BK
GND
Burner Compartment
Blower Compartment
Auto Reset Auxiliary Limit Control
24V Thermostat Connections
See NOTE 5.
Diagnostic
2
LEDs 3 1
6 5 4
2ND STG DLY
T- S TAT
9 7
8
HEAT OFF
DELAY 10
12 11
UNUSED
15 13
14
DEHUM
HEAT W
1
Y
DELAY
2
3
ADJUST
4
COOL
OR
LINE
1
BK
2
3
W 4
NEUTRAL
W 5
R
ECM Motor
Harness
5 BK
4
W
3
G
2
GND
PK
1
Circulator Blower
70 kBtu, 90 kBtu, 115 kBtu Models Only
High-Fire
Pressure
Switch
W
C
NO Disconnect
Flame
WARNING:
Sensor
Disconnect Power
Before Servicing. Wiring
To Unit Must Be Properly
Polarized and Grounded.
Door
Switch
Inductor Coil
70 kBtu, 90 kBtu,
115 kBtu Models Only
LINE
EAC
PR
Fuse
HUM
IGN
Y
FS
R
R
LINE
Y
R
Fuse 3A
R
BR
B
To +VDC
Y1
R
BU
24
VAC
115 W1
VAC
W2
40 VA To
Y2
Micro
Transformer
G
O
DEHUM
C
W
W
BK
K
K
To
R
Blower Compartment
Door Switch
To
(Open When Door Open)
Micro
Inductor Coil
Integrated Control Module
temperature rating of at least 105ºC. Use copper conductors
only.
4. Furnace must be permanently grounded and conform to NEC
and local codes.
5. To recall the last 6 faults, most recent to least recent, depress
switch for more than 2 seconds in standby (no thermostat
inputs).
GND To 115 VAC/10/60 Hz Power Supply with
Overcurrent Protection Device
L
WARNING:
Disconnect Power
Before Servicing. Wiring
N
To Unit Must Be Properly
Polarized and Grounded.
To 115 VAC/10/60 Hz Power Supply with
Overcurrent Protection Device
GND
L N
Disconnect
Junction Box
Indoor Air
Circulator
Blower
GND
Neutral
Neutral
Electronic
Air Cleaner
IND HI
Neutral
Induced
Draft
Blower
IND LO
Neutral
Humidifier
Neutral
Hot Surface Igniter
Flame Sensor
115 VAC Neutral
40 VA Transformer
TH (4)
24 VAC
Auto Reset
Manual Reset Auxiliary
Primary Limit Control
Limit Control
HLO (10)
PSO (7)
Low-Fire
24V Humidifier
Pressure Switch
PS1 (2)
NO
PS2 (12) NO
C
High-Fire
Manual Reset Rollout
Pressure Switch
Limit Controls
HLI (1)
MVL (13)
PM
MVH (14)
HI
MVC (8)
C
Gas Control
GND (5)
Valve
GND
TR (11)
GND (4)
+ VDC (1)
Indoor Air
RX (2)
Circulator
TX (3) Blower
Humidifier