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Bobcat Models B-120A and B-200A
20
WIRE LEGEND:
1
M
CAUTION:
1
2
3
4
5
6
7
8
9
10
11 12
13 14 15
16
12
3
4
5
6
78
HN
H
N
HN
1
2
3
4
5
6
1
J5
J2
J6
J13
2
3
1
2
3
4
LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS.
PROPER OPERATION AFTER SERVICING".
WW
BL
R
BL
GY
DISPLAY
GY
W
G
BK
G
M
BK
G
W
G
ROUND
R
Y
PR
PK
B
R
GY
PR
BK
W
M
1
2
3
4
5
6
7
J9
BK
R
G
W
BL
1
W
W
W
BK
GY
GY
G
Y
G
Y
GY
FACTORY WIRED
FIELD WIRED, FIELD SUPPLIED
PROVIDE DISCONNECT MEANS & OVERLOAD PROTECTION AS
REQUIRED.
IF ANY OF THE ORIGINAL WIRE AS SUPPLIEDWITH THE
APPLIIANCE MUST BE REPLACED, IT MUST BE REPLACED
WITH TYPE 105˚C OR ITS EQUIVALENT.
24V ROOM
T
HERMOSTAT
WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION.
"VERIFY
FIELD WIRING
TERMINALS
120V/24V
TRANSFORMER
DHW
C
IRCULATOR
(
IF USED)
DHW TANK
THERMOSTAT
(IF USED)
2
PIN
C
ONNECTOR
G
AS VALVE
HONEYWELL
VK8115
3 PIN
CONNECTOR
W
ATER HIGH
LIMIT
(WHITE CONNECTOR)
SUPPLY WATER SENSOR
(RED CONNECTOR)
R
ETURN WATER SENSOR
(BLUE CONNECTOR)
FLUE GAS SENSOR
(CLEAR CONNECTOR)
POWER
ON/OFF
S
WITCH
BOILER
CIRCULATOR
L
2
NEUTRAL
L1
HOT
120V
60HZ
1
2 K ohm
OUTDOOR
S
ENSER
(IF USED)
LOW WATER
C
UT OFF
(IF USED,REMOVE
7
-8 JUMPER)
5 PIN
C
ONNECTOR
COMBUSTION
B
LOWER
Figure 16a. Schematic wiring diagram.