Specifications
41
Wiring Diagram
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
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. Unit 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 while in standby (no
thermostat inputs).
R
OR (MED LOW)
BU (MED)
R (LOW)
Gas Control Valve
C
P
M
C
G
W
Diagnostic LED
2-Circuit
Connector
H
ot S
urface Igniter
TH (3)
Integrated Control Module
Junction Box
L
I
N
E
-
H
X
F
M
R
-
H
Integrated Control Module
Integrated Control Module
G
N
D
Disconnect
L
N
BR
GY
R
B
U
BK
115 VAC Hot and Park Term
inals
LIN
E-H
Flame
Sensor
Front C
over P
ressure S
w
itch
N
O
C
GY
BK
OR
2
4
V
Thermostat
Connections
G
G
N
D
115 VAC
24 VAC
Blower Compartment
Door Switch (Open
when Door Open)
Door
Switch
B
K
G
N
D
L
N
W
Junction
Box
1
O
R
Induced D
raft
Blow
er P
ressure
Sw
itch
HE
AT-H
GND
W
R
W
GND
Burner Compartment
Blower Compartment
N
O
CO
O
L-H
BK (HI)
BR
BR
Capacitor
Y
W
Y
BU
PR
R
O
R
PK
BK
W
W
Induced D
raft B
low
er
Manual Reset Auxiliary
Limits
(1) In Upflow Blower Deck
(2) In Counterflow Blower
Housing
C
F
S
HI
HEAT-H
LO
HEAT-H
Hot Surface Igniter
I
N
D
I
G
N
E
A
C
-
H
Electronic Air
Cleaner
Circulator
Blower
Induced
Draft
Blower
Flame Sensor
1
1
5
V
A
C
Transformer
4
0
V
A
2
4
V
A
C
G
N
D
RO1 (5)
RO2 (11)
HLO (1)
HLI (7)
MVC (9)
GND (8)
TR (6)
OR
W
W
BU
Y
OR
R
G
BR
P
K
PK
GY
W
115 VAC Neutral
Terminals
BK
BK
G
Y
24V Thermostat Connections
M
I
C
R
O
T
O
C
G
Y
W
R
2
W
O
R
BU
Y
OR
OR
GY
PK
R
O
R
G
Y
W
XFMR-H
G
Y
O
R
G
BR
1
2
3
1
2
1
1
1
0
9
8
7
6
5
4
24 VAC
Humidifier
2
4
V
A
Humidifier
Humidifier
PSO (4)
MVL (2)
PS (10)
C
N
O
C
N
O
Front Cover Pressure Switch
Induced Draft
Blower Pressure
Switch
Integrated C
ontrol M
odule
Fuse
On
Off
2
nd
Stage
Delay*
Mode*
Heat
Off
Delay*
FS
1
2
3
H
I
OR
OR
P
M
Gas
Control
Valve
C
H
I
MVH (12)
Factory Settings Shown
See
Note 6
COOL-H
To 115 VAC/10/60 HZ Power Supply with Over-Current Protection Device
PR
Y
B
K
Line Neutrals
4
0 V
A
Transform
er
See
Note 4
Circulator
Blower
1
2
3
4
C
0
6
7
8
9
Steady On = Normal Operation
1 Flash = System Lockout (Retries/Recycles Exceeded
2 Flashes = Low Fire Pressure Switch Stuck Closed
3 Flashes = Low Fire Pressure Switch Stuck Open
4 Flashes = Thermal Protective Device Open
5 Flashes = Flame Sensed With Gas Control Valve De-energized
7 Flashes = Low Flame Sense Signal
8 Flashes = Check Igniter Or Improper Grounding
9 Flashes = High Fire Pressure Switch Stuck Open
Continuous Flashes = 115- Volt AC Power Reversed
Low Voltage (24V)
Low Voltage Field
High Voltage (115V)
Junction
Terminal
Internal To
Integrated Control
Plug Connection
Equipment GND
Field GND
Field Splice
Switch (Temp.)
Igniter
Pressure Switch
Over-Current
Protection 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
Manual Reset Auxiliary Limit Controls
Auto Reset
Primary
Limit Control
Manual Reset Rollout Limit Control(s)
(Single Control on 45k Btu)
Disconnect
To 115 VAC/10/60 HZ Power Supply
with Over-Current Protection Device
Manual Reset Rollout Limit Control(s)
(Single Control on 45k Btu)
A
uto R
eset Prim
ary Lim
it C
ontrol