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Page 16 506488-01Issue 1008
Figure 12
208/230V-1-60
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Y
G
W1
R
C
Y
G
W
R
C
BLU
GRN
YEL
WHT
RED
Y
R
C
DIAGNOSTIC
MODULE
G
Y1
Y2
O
W1
EM
C1
R
HUM
INDOOR BLOWER
MOTOR
ICM BOARD
BLU
RED
24VAC
1
625
4
3
FLAME
FLAME
SENSE
GRY
BRN
BLU
ORN
RED
YEL
GRN
BLK
WHT
PUR
BLK
GRN
PUR
ORN
WHT
PUR
MAIN
LIMIT
SWITCH
ROLLOUT
SWITCH
PRESSURE
SWITCH
AUX. LIMIT SWITCH
(IF USED)
GAS
VALVE
FUSE
IGNITION CONTROL
ORN
BLU
GRN
BLU
YEL
RED
RED
BLU
RED
YEL
CONTACTOR
THERMOSTAT
YEL
YEL
HIGH PRESSURE
SWITCH
(IF USED)
L1
T1
T2
L2
C
H
F
CONDENSER
FAN MOTOR
COMPRESSOR
CONTACTOR
COMPRESSOR
CONTACTOR
DUAL
CAPACITOR
COMPRESSOR
TRANSFORMER
C
S
R
L1
CMB
BLWR
SPARK
COMB.
AIR
BLOWER
IGNITION CONTROL
BLK
BLK
WHT
L2
L1
BLK
BRN
PUR
RED
RED
BLK
208V
240V
24V
INDOOR
BLOWER
MOTOR
5
4
3
NOTE:
IF ANY OF THE ORIGINAL WIRE IS REPLACED, THE
SAME SIZE AND TYPE WIRE MUST BE USED. USE
COPPER CONDUCTOR ONLY, MIN.75°C WIRE.
WARNING-
ELECTRIC SHOCK HAZARD. UNIT MUST BE GROUNDED
IN ACCORDANCE WITH NATIONAL AND LOCAL CODES.
HEAT ANTICIPATION SETTING: 0.70 AMP
LINE VOLTAGE FIELD INSTALLED
SEE
BLOWER SPEED
CHART
BLK
S4
S1
K1
A3
GV1
S21
S18
S47
S10
T1
B3
B6
B4
K1-2
C12
B1
K1-1
A3
A54
B3
GROUND
BLU
YEL
A132
ADJUST
HEAT COOL
NORM
(+)
(-)
(TEST)
A
B
C
D
A
B
C
D
DIAGNOSTICS
The following ignition control board LED codes will
indicate normal or abnormal operations:
SLOW FLASH Normal operation, no call for heat.
FAST FLASH Normal operation, call for heat.
2 FLASH System lockout.
3 FLASH Pressure switch senses incorrect pressure.
4 FLASH Main limit open or rollout switch open.
5 FLASH Flame sensed and gas valve not energized.
STEADY Internal failure (micro-controller failure; self check).
LED
YEL
E1
Blower Speed Chart
Unit Factory Shipped Settings
Cooling
Input
Heating
Input
ADJUST HEAT COOL
24 68 NORM A B
30 68 NORM A A
36 68 NORM B A
36 90 NORM A A
42 83 NORM C C
42 110 NORM C C
48 83 NORM C B
48 110 NORM C B
48 138 NORM A B
60 83 NORM C A
60 110 NORM C A
60 138 NORM A A
A132
A132
BLK
Connection Diagram
Single Phase – Variable Speed Motor
P/N 48107-001