Bth 120 & 150 Wiring Diagram - A.O. Smith BTH-120 Instruction Manual

Bth 120 & 150 wiring diagram
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
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
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)
figure 66
68
BLOCKED
EXHAUST
ANODE 1
ANODE 2
1
2 COMBUSTION
BLOWER
GREEN
GROUND
N
WHITE
120 VAC NEUTRAL
L
BLACK
120 VAC HOT
BLOWER
PROVER