Wiring Guide

6-446 — WIRING DIAGRAMS MODELS PDP/BDP
5H78233C5 REV B Mechanical Modulation, Intermittent Pilot Ignition, 100% Shut-Off with Continuous Retry, Single-Phase.
BK
Combination Gas Control Mechanical Modulating Gas Control
D
D
BK
W
R
1 2
M
3
C P
Caution Failure to wire this unit according to this wiring diagram may result in injury to the installer or user. For deviations contact the factory.
Power Exhaust Motor
V
L2 (W)
L1 (BK)
115V/60Hz/1Ø Power Shown
Second Circuit Breaker Req'd.
For 230V,200V,1Ø
Circuit Breaker (By Others)
T1
G
C
Xfmr
115V
24V
T2
Limit Control
Indicates Terminal Board Connection
Pressure Switch
Fan Motor
Note to installer: Attach this diagram near heater. All wiring must comply with national electric code and all local codes. All components must agree with their respective power source. Use 105° wire for replacements.
* Alternate Xfmr. Primary Xfmr Wires 230V/60Hz/1Ø-BK & Y (OR O) 200V/60Hz/1Ø-BK & R Wire nut the wire not used.
W
115V/60Hz/1Ø Power Shown Circuit Breaker (By Others)
Second Circuit Breaker Req'd For 230V,200V,1Ø
L1(BK)
L2(W)
UNIT HEATER WIRING DIAGRAM
FACTORY FIELD WIRE NUT
24V.LINE
WIRING LEGEND
Fan Motor
* 24V Xfmr
Terminal Board
W
BK
BL
BL BL
G
V
F
C
T2
T1
R
BL
Limit Control
BL
Gnd
Pressure Switch
Power Exhaust Motor
J-Box
M
D
P
Gas Control Combination
C
Modulating Mechnical Gas Control
Operator Main Operator Pilot
D
BK
R BL Y W G
O
Ignitor
R BL Y W G
O
Ignitor
BK
R BL Y W G
O
Ignitor
R BL Y W G
O
Ignitor
ROBERTSHAWHONEYWELL
MV
MV
SPARK
24V
PV
MV/PV
24V(GND)
GND
TH(24V)
PV
SPARK
PV/MV
TR(GND)
GND
ROBERTSHAWHONEYWELL
MV
MV
SPARK
24V
PV
MV/PV
24V(GND)
GND
TH(24V)
PV
SPARK
PV/MV
TR(GND)
GND
ROBERTSHAWHONEYWELL
MV
MV
SPARK
24V
PV
MV/PV
24V(GND)
GND
TH(24V)
PV
SPARK
PV/MV
TR(GND)
GND
ROBERTSHAWHONEYWELL
MV
MV
SPARK
24V
PV
MV/PV
24V(GND)
GND
TH(24V)
PV
SPARK
PV/MV
TR(GND)
GND
IGNITION CONTROLLERIGNITION CONTROLLER
IGNITION CONTROLLERIGNITION CONTROLLER
Some models may have limit control to pressure switch wire routed outside of J-box.
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