Carrier B Series - Wiring Diagrams

→ Fig. 12—Wiring Diagram for Intermittent Ignition 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.
A03102
OVERCURRENT PROTECTED
DISCONNECT
FLAME ROLLOUT
SAFETY
SHUTOFF
BLOCKED VENT
SAFETY
SHUTOFF
P1-01
BR
W
LWCO
24 V.
SECONDARY
O
BK
BK
BK
BT
Y
P1-04
NOTE:
1) 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
PV
GND.
PV/MV
MV
GAS VALVE
VR8204A / VR8304M
UT 1003-620 SERIES
INTERMITTENT PILOT CONTROL
RGW BK BTBK
MV MV/PV PV
GND.
(24V) (GND.)
(24V)
SPARK
TO PILOT BURNER
W
G
R
BL
BK
TO
VENT
DAMPER
LOW WATER
CUT OFF
VENT DAMPER
MOLEX PLUG
4123
115V/60HZ/1Ø
POWER
SUPPLY
NEUT
HOT
W
BK
BT
OVERCURRENT PROTECTED
DISCONNECT
BK BR O Y
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
BL
Y
R
BT
W
G
- BLACK
- BROWN
- BLUE
- YELLOW
- RED
- BLACK WITH WHITE TRACER
- WHITE
- GREEN
- WIRE NUT
BLOCKED VENT
SAFETY SHUT OFF
FLAME ROLLOUT
SAFETY SHUT OFF
UT 1003-620 SERIES
INTERMITTENT PILOT CONTROL
MV MV/PV PV
(24V)
GND.
(24V) (GND.) SPARK
RGW BK BK BT BL
IGNITION CABLE
LINE VOLTAGE
LOW VOLTAGE
TO PILOT BURNER
GAS VALVE
VR8204A / VR8304M
BK
R
G
W
GND.
PV
PV/MV
MV
—14—