John Wood Commercial - 300-400K BTU - Manual (Page 65)

65
ajwsh130400 wiring diagram
1
2
5
6
WHITE
GREEN
BLACK
BLACK
WHITE
RED
COMBUSTION
BLOWER
NOTE: COMBUSTION BLOWER MOTORS
ON 400,000 Btu/hr MODELS ARE
THREE PHASE (3Ø) MOTORS.
BLACK, WHITE AND RED WIRES MUST BE
WIRED AS SHOWN OR THE MOTOR WILL
TURN BACKWARDS. THIS MAY CAUSE THE
CONTROL SYSTEM TO LOCK OUT ON
“BLOWER PROVER OPEN” FAULT.
WHITE/BLACK
WHITE/GREEN
WHITE
WHITE/YELLOW
1 T
2 T
3 T
L
N
AI1
0V
+15V
L l1
2
GREEN
WHITE
RED
BLACK
1
BLACK
3
WHITE
1 RED (ECO)
4 RED (ECO)
2 BLACK
3 BLACK
BLOCKED
INTAKE AIR
BLOCKED
EXHAUST
BLOWER
PROVER
24 VAC
GAS VALVE
B
C
C
6J5
J4
J7
J5
1J
61
J
01
J3
1J2
J3
J1
J
TRANSFORMER
50VA
GROUND STRIP
BURNER GROUND
(BURNER BOLT)
LOW GAS
PRESSURE SWITCH
1 BLACK
RED
2 WHITE
1 BLACK
2 BLACK
MI
U
1
2
15
4
14
5
10
6
7
8
13
11
L
N
ANODE 1
ANODE 2
1 GREEN
2 BLUE
N
OI
T
C
N
UJ
X
O
B
RED
GREEN GREEN
WHITE
N
E
E
R
G
N
E
E
R
G
N
E
E
R
G
GREEN
UPPER TEMPERATURE PROBE
1 BLACK120 VAC HOT
3 WHITE 120 VAC NEUTRAL
4 YEL 24 VAC
4 YEL 24 VAC
LOWER TEMPERATURE PROBE
HOT SURFACE IGNITER
FLAME SENSOR
(CENTRAL CONTROL BOARD)
INSIDE CCB
ENCLOSURE
GROUND
120 VAC NEUTRAL
120 VAC HOT
USER INTERFACE MODULE
ENABLE/DISABLE CIRCUIT
JUMPER WIRE BETWEEN PINS
8 AND 11 ON J6 PLUG
VFD
VARIABLE
FREQUENCY
DRIVE
ON/OFF
SWITCH
figure 63