Wiring Diagram - Suf 120 - 300 - State Water Heaters SUF60 Service Handbook

Commercial gas high efficiency water heaters series 100, 101 and 104.
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WIRING DIAGRAM – SUF 120 ‑ 300
1
13
2
15
4
14
5
10
6
7
8
11
1 BLACK
2 WHITE
RED
1 BLACK
2 BLACK
1 GREEN
2 BLUE
1 BLACK
2 WHITE
1
2
3
44
LOW GAS
PRESSURE SWITCH
1 RED (ECO)
2 BLACK
3 BLACK
4 RED (ECO)
2 RED
GREEN
WHITE
GREEN
1 BLACK120 VAC HOT
3 WHITE 120 VAC NEUTRAL
4 YEL 24 VAC
4 YEL 24 VAC
GROUND STRIP
TRANSFORMER
INSIDE CCB
50VA
ENCLOSURE
Servicing should only be performed by a Qualified Service Technician
24 VAC
BLOCKED
GAS VALVE
AIR INTAKE
ENABLE/DISABLE CIRCUIT
JUMPER WIRE BETWEEN PINS
8 AND 11 ON J6 PLUG
HOT SURFACE IGNITER
FLAME SENSOR
UPPER TEMPERATURE PROBE
LOWER TEMPERATURE PROBE
120 VAC 1 Ø POWER
BLACK
RED
ON/OFF
SWITCH
WHITE
BURNER GROUND
(BURNER BOLT)
BLOCKED
EXHAUST
ANODE 1
ANODE 2
1
COMBUSTION
2
BLOWER
GREEN
GROUND
N
WHITE
120 VAC NEUTRAL
L
BLACK
120 VAC HOT
BLOWER
PROVER

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This manual is also suitable for:

Suf 120Suf 100Suf 250Suf 130Suf 500

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