Internet Version for Reference Only
BRADFORD WHITE
Page 20
Copper Brute B4 Volume Water Heaters Page 21
IGNITION SYSTEM NO. 12 (SIZES 325-400)
ON/OFF WITH EM2
2AMP
FUSE TRANSFORMER
LOWWATER
CUT-OFF(OPTIONAL)
POWER
SWITCH HOT
PUMP
RELAY
TERMINAL
STRIP
MANUAL
RESET
HI-LIMIT
TEMP
CONTROL
200°FMAX
FIELDINTERLOCK
(REMOVEJUMPER
WHENUSED)
PILOTBURNER
WITHSPARK
ELECTRODE
SENSOR
GASVALVE
SPARK
FLOW
SWITCH
115V/60HZ
POWERSUPPLY
PUMP
NEUTRAL
GROUNDING
CONDUCTOR
1
2
3
4
5
6
7
8
9
10
11
12
BK -BLACK
W -WHITE
R - RED
Y - YELLOW
BL - BLUE
BR - BROWN
O - ORANGE
G - GREEN
P - PURPLE
FACTORYWIRING
24V
115V
FIELDWIRING
24V
115V
RR
24V 115V
BK BR
W
YY
W
R
R
R
BR
O
Y
BK BL
W
R
R
BR
BR
BR
Y
O
BR
BR BK
W
BK BK
W
G
Y
BR
O
Y
Y
P1 2 345
A
T
B
1
3
IGNITION
CONTROL
1 MV
2 MV/PV
3 PV
4 GND
5 24V (GND)
6 24V
7 TH-W
8 MV
9 SPARK
TH-TR
TR
TH
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).
Figure 29. Typical example of wiring schematic, System 12, Sizes 325-400.