Carrier B Series - Page 15

→ Fig. 13—Wiring Diagram for Standing Pilot Boilers with PS-802 Probe-Type Low Water Cut-Off
NOTE: If any of the original wire as supplied with this appliance must be replaced, it must be replaced with type 105°C thermoplastic
wire or its equivalent.
A03103
LOW WATER
CUT OFF
VENT DAMPER
MOLEX PLUG
4123
115V/60HZ/1Ø
POWER
SUPPLY
NEUT
HOT
W
BK
BT
OVERCURRENT PROTECTED
DISCONNECT
BK
BR
OY
t´
THERMOSTAT
BK
O
PRESSURE
LIMIT
1
3
2
LWCO PROBE
BK
BT
G
W
R
J7
C
H
N
W
B
N
H
B
BK
Y
NOTE:
TERMINAL NO. 3 APPEARS ONLY
ON WATER FEEDER MODELS WITH
MANUAL FEED PUSH BUTTON.
OPTIONAL WF-2U-24
WATER
FEEDER
COLOR CODE
BK
BR
0
Y
R
BT
W
G
B
- BLACK
- BROWN
- ORANGE
- YELLOW
- RED
- BLACK WITH TRACER
- WHITE
- GREEN
- BLUE
BLOCKED VENT
SAFETY SHUT OFF
FLAME ROLLOUT
SAFETY SHUTOFF
- WIRE NUT
GAS VALVE
TH
TR
OVERCURRENT
PROTECTED
DISCONNECT
FLAME ROLLOUT
SAFETY
SHUTOFF
BLOCKED VENT
SAFETY
SHUTOFF
P1-01
W
LWCO
24 V.
SECONDARY
BK
BK
BT
Y
P1-04
NOTE:
S1A AND S1B ARE THE AUTOMATIC OPERATION / HOLD DAMPER OPEN SWITCH.
SWITCH SHOWN IN AUTOMATIC POSITION.
S2, S3, AND S4 ARE CAM ACTUATED SNAP SWITCHES.
H
N
B
VENT DAMPER CABLE
4 POLE CONNECTOR
P1-03
P1-02
THERMOSTAT
NEUTRAL
HOT
115V/60HZ/1Ø
PRESSURE
LIMIT
120 V.
PRIMARY
TO
VENT
DAMPER
BR
O
BK
TH
TR
GAS
VALVE
—15—