Fig.
8—Wiring
Diagram
A91349
H
M
L
C
INDOOR
BLOWER
MOTOR
BR
BR
CAP
.
I.D.
BLOWER
LEGEND
L1(H)
L2(N)
CIRCULATION
FAN
LOW
TSTAT
24VAC
(115 VAC)
NOTES:
(1) Make field power supply connections to black and white wires capped
with orange wire nuts.
(2) WARNING --- Unit must be grounded. Wiring must conform to N.E.C.
and local codes.
(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 185 C and be a minimum of 16 GA. AWG copper
strand wire.
(4) Connect required motor lead to heat terminal on circuit board to deliver
a temperature rise within the range specified on the rating plate.
Connect unused motor leads to the "M1 & M2" terminals.
LINE Y
24 V
PRINTED CIRCUIT
BOARD WIRING
FACTORY WIRING
FIELD WIRING
ORANGE WIRE NUT
GROUND
BK
BL
BR
GR
OR
RD
RD/BK
VI
WH
YL
BLACK
BLUE
BROWN
GREEN
ORANGE
RED
RED/BLACK STRIPE
VIOLET
WHITE
YELLOW
L
P
ROS
BI
CU
LIMIT
PRESSURE SWITCH
ROLL OUT SWITCH
BLOWER INTERLOCK
CONDENSING UNIT
115 VAC 1 0 60 HZ POWER SUPPLY
(FUSED DISCONNECT ON HOT LEG)
1
2
3
4
60 SEC
90 SEC
120 SEC
DELAY OFF SCREW SETTINGS
150 SEC
MED
HI
GND
N2
HEAT
COOL
N3
D1
N4
C
BI
S1
S2
M2
K1
K2
K2
K3
X
R
Y
C
W
G
CN23-2
CN23-1
CN23-6
LIMIT
CONTROL
TRANSFORMER
CONDENSING
UNIT
PRESSURE SW.
N.O.
N.C.
PS1
PS2
V1
CN23-3
CN23-5
COM.
ST912081005
ELECTRONIC
FAN TIMER
ROS
MV
PV
MV\PV
MV
MV\PV
PV
24V (GNO)
GNO (BURNER)
SPARK
GAS VALVE
HONEYWELL VR8204
PILOT
24V
IGNITION MODULE
HONEYWELL S8600
OR 8660
N1
GNO
MV/PV
MV
G.V.
GND
PV
L1 (H)
L2 (N)
POWER SUPPLY
115 VAC 10 60 HZ
(FUSED DISCONNECT
ON HOT LEG)
GND
VI
ROS
P
BK
BK
CU
T
R
Y
W
G
BI
BK
WH
G
H
C
O
Y
R
L
RD
OR
VI
WH
RD
BK
GR
BK
YL
BL
VI
OR
PILOT
HONEYWELL
S8600
IS
1
2
3
4
5
6
7
8
9
MV
MV/PV
PV
GNO (BURNER)
24V (GNO)
24V
TH-W (OPT)
SPARK
WH
BL
RD/
BK
YL
BC
DELAY OFF
SELECT
A
B
H
E
A
T
C
O
O
L
M1
M2
M3
UNUSED
MOTOR
LEADS
S
1
2
3
4
5
6
1
2
3
4
D1
C
C
X
X
Y
100, 125K INPUT
50, 75K INPUT
BL
YL
INDUCER MOTOR
100,125
FOR 75, 100, 125
50, 75
—5—
