Page 16
HIGH PRESSURE
SWITCH
(IF USED)
YEL
BLU
THERMOSTAT
Y G W1 R C S1
S4
IGNITION CONTROL
YEL
BLU | YEL | GRN | WHT | RED |
Issue 1008 | Figure 12 |
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| A3 | CMB | L1 | |
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| BLWR | |||
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L1 |
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| SPARK |
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| E1 |
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L1 |
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COMPRESSOR | ||||||||
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CONTACTOR | BLK |
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T1 |
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BLK |
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A132 |
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| CAPACITOR |
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| C12 |
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| F |
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C |
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| B6 |
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B1 | R |
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| BLOWER |
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| AIR |
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COMPRESSOR |
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A132 |
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| RED | B4 |
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| T2 |
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COMPRESSOR |
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| BLK | WHT | ||
CONTACTOR |
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L2 |
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| FAN MOTOR |
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L2
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
| BLK | RED |
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| IGNITION CONTROL | ||||
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BLK |
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| 24VAC |
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| FUSE |
| G | ||
208V | 240V |
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| GROUND |
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| GRN |
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| LED |
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| 24V BLU |
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| W |
B3 |
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| 1 | 6 | 2 | 5 | 4 | 3 | FLAME | |
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TRANSFORMER |
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5 |
| T1 |
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4 |
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| GRY |
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| BRN | ORN | PUR | PUR | RED | BLU | |
INDOOR |
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| MAIN | ||||||||
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| LIMIT |
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BLOWER |
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| FLAME SENSE | ||
WHT | BLU | SWITCH | WHT |
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MOTOR |
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| ROLLOUT | S47 |
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| SWITCH |
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| PRESSURE SWITCH | ORN |
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| PUR |
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| S18 |
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| S21 |
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| AUX. LIMIT SWITCH | GV1 | |||||||
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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
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| A132 |
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| YEL | Y | DIAGNOSTIC MODULE |
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| YEL |
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| K1 |
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| HUM |
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RED |
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| ICM BOARD |
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BLU |
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| SEE |
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| EM | BLOWER SPEED |
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| CHART |
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| ADJUST HEAT COOL |
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| GRN YEL | O |
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| NORM |
| A | A |
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| Y2 |
| (+) |
| B | B |
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| C | C |
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| Y1 |
| (TEST) |
| D | D |
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GRN |
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| G 1 2 3 4 |
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ORN |
| 5 6 | 7 8 9 10111213141516 |
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| 1 2 3 4 5 | 6 7 8 9 10111213141516 |
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| INDOOR BLOWER |
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| MOTOR |
| B3 |
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| Blower Speed Chart |
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Unit |
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Cooling | Heat ing | ADJUST |
| HEAT |
| COOL | |||||
Input | Input |
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24 | 68 | NORM |
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30 | 68 | NORM |
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36 | 68 | NORM |
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36 | 90 | NORM |
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42 | 83 | NORM |
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42 | 110 | NORM |
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48 | 83 | NORM |
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48 | 110 | NORM |
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48 | 138 | NORM |
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Connection Diagram
Single Phase – Variable Speed Motor
P/N
60 | 83 | NORM | C | A |
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60 | 110 | NORM | C | A |
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60 | 138 | NORM | A | A |