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BRADFORD WHITE
Page 18
Copper Brute B4 Volume Water Heaters
Page 19
115V
24V
TRANSFORMER
1
2
3
4
5
6
7
8
9
10
11
12
RR
FUSE
2 AMP
FIELD INTERLOCK
(REMOVE JUMPER
WHEN USED)
Y
FLOW
SWITCH
STRIP
TERMINAL
Y
BR
BR
1
23
6
4
5
W
W
O
P
Y
R
VENT DAMPER
JUMPER
HI-LIMIT
RESET
MANUAL
RECEPTACLE
VENT DAMPER
1
23
6
4
5
R
G
W
M
BK
ACTUATOR
VENT DAMPER
BK
BK
VENT DAMPER
PLUG
ALTERNATE WIRING FOR INDOOR INSTALLATION ONLY
VENT DAMPER
AND DRAFTHOOD
SWITCH, M. RESET
ON/OFF WITH EM2
IGNITION SYSTEM NO. 12 (SIZES 175-250)
BR
R
R
CONTROL
TEMP
LOW WATER
CUT-OFF (OPTIONAL)
BK
P 1
3
BR
2 4 5
Y
SENSOR
PILOT BURNER
WITH SPARK
ELECTRODE
SPARK
O
BR
Y
GAS VALVE
PV
MV/PV
MV
Y
O
LINK
FUSIBLE
W W
TR
TH-TR
GAS VALVE
ALTERNATE
TH
O
Y
BR
POWER
SWITCH
T
B
3
RELAY
PUMP
A
1
R
W
BK
BL
GROUNDING
BK
PUMP
BR
BR
CONDUCTOR
POWER SUPPLY
115/60HZ
W
BK
NEUTRAL
HOT
W
W
BK
IGNITION
CONTROL
1 M
V
2 MV/PV
3 P
V
4 GND
5 24V (GND)
6 24V
7 TH-W
8 M
V
9 S
PARK
BK
- BLACK
W - WHITE
R - RED
Y -YELLOW
BL
- BLUE
BR
- BROWN
O -ORANGE
G -GREEN
P -PURPLE
FACTORY WIRING
24V
115V
FIELD WIRING
24V
115V
Figure 27. Typical example of wiring schematic, System 12, Sizes 175-250.
IF ANY OF THE ORIGINAL WIRE AS SUPPLIED
WITH THE HEATER MUST BE REPLACED, IT
MUST BE REPLACED WITH APPLIANCE WIRING
MATERIAL 105°C (220°F) OR ITS EQUIVALENT.
WHITE WIRES TO FUSIBLE LINK MUST BE
REPLACED WITH WIRE HAVING INSULATION
RATED AT 200°C (390°F). (AVAILABLE FROM
FACTORY).