SUF 199 & 250 Wiring Diagram
E
J16
1
13
2
15
4
14
5
J | 10 |
6 | |
6 | 7 |
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| 8 |
| 11 |
J |
| 1 BLACK |
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| 2 WHITE |
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5 |
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J |
| RED |
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4 |
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LOW GAS | 24 VAC | BLOCKED | BLOCKED | BLOWER |
PRESSURE SWITCH | GAS VALVE | AIR INTAKE | EXHAUST | PROVER |
ENABLE/DISABLE CIRCUIT JUMPER WIRE BETWEEN PINS 8 AND 11 ON J6 PLUG
HOT SURFACE IGNITER
FLAME SENSOR
USER INTERFACE MODUL
CCB (CENTRAL CONTROL BOARD)
| 1 RED (ECO) | |
J7 | 2 BLACK | |
3 BLACK | ||
| 4 RED (ECO) | |
J | 1 BLACK | |
1 | ||
2 BLACK | ||
5 | ||
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J | 1 GREEN | |
2 BLUE | ||
10 |
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J13 | 3 WHITE/GREEN | |
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7WHITE/BLUE 8 WHITE/BROWN
J | 1 BLACK |
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2 WHITE |
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2 |
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J | 1 2 RED |
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2 | GREEN |
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3 |
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3 | WHITE |
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| GREEN |
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| 1 BLACK120 VAC HOT |
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J |
| 3 WHITE 120 VAC NEUTRAL |
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1 |
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| 4 YEL 24 VAC |
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| 4 YEL 24 VAC |
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TRANSFORMER 50VA
| UPPER TEMPERATURE PROBE |
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| ANODE 1 |
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| LOWER TEMPERATURE PROBE |
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| PWM (pulse width modulation) |
| ANODE 2 |
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| SPEED INSTRUCTION SIGNAL |
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| WIRES FROM CCB TO BLOWER |
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| NOTE: COMBUSTION BLOWER | |||
| MOTOR VFD (variable frequency drive). |
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| ASSEMBLY CONSISTS OF | ||||
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| MOTOR, BLOWER AND INTEGRAL | ||
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| VFD (variable frequency drive). | ||
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| 1 | 4 5 |
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| 120 VAC 1 Ø POWER | 1 |
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| 2 |
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| COMBUSTION |
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| BLOWER |
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| JUNCTION |
| GREEN |
| GROUND |
GREEN | GREEN |
| BOX |
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ON/OFF | WHITE | N 120 VAC NEUTRAL | |||||
| BLACK |
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| RED |
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| BLACK | L |
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| WHITE | SWITCH |
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| 120 VAC HOT | ||
GROUND STRIP
BURNER GROUND
INSIDE CCB 
(BURNER BOLT)
ENCLOSURE
Figure 67
69