Wiring Diagram

14
6-446 — WIRING DIAGRAMS MODELS PDP/BDP
W
Automatic Gas Control
D
Mechanical Modulating Gas Control
D
Y
Automatic Gas Control
Fan Motor
L3
L2
L1
Circuit Breaker (By Others)
L1 L2 L3
230V/60Hz/3Ø Power Shown
Starter Coil
Starter Overload
V
T1
G
C
Xfmr
230V
24V
T2
Limit Control
Indicates Terminal Board Connection
Pressure Switch
Power Exhaust Motor
Mechanical Modulating Gas Control
D
D
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.
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.
* Alternate Xfmr. Primary Xfmr Wires 230V/60Hz/1Ø-BK & Y (OR O) 200V/60Hz/1Ø-BK & R Wire nut the wire not used.
3 Phase Starter (By Others)
* 24V Xfmr
Pressure Switch
W
230V/60Hz/3Ø Power Shown Circuit Breaker (By Others)
L1 L2 L3
BK
Factory Field
Wire Nut
24V.Line
Wiring Legend
C
L3L2
L1
Fan Motor
T3T2T1
BL
J-Bo
x
Te rm i na l Board
O BK
BL
BL
BL
G
V
F
C
T2
T1
R
BL
Limit Control
Gnd
Power Exhaust Motor
UNIT HEATER WIRING DIAGRAM
BK
R BL Y W G
O
Ignitor
R BL Y W G
O
Ignitor
R BL Y W G
O
Ignitor
BK
Ignitor
ROBERTSHAWHONEYWELL
MV
MV
SPARK
24V
PV
MV/PV
24V
(GND)
GND
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
SPAR
K
24V
PV
MV/PV
24V(GND)
GND
PV
SPAR
K
PV/MV
TR(GND)
GND
ROBERTSHAWHONEYWELL
MV
MV
SPAR
K
24V
PV
MV/PV
24V(GND)
GND
TH(24V)
PV
SPAR
K
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.
5H78233C4 REV A Mechanical Modulation, Intermittent Pilot Ignition, 100% Shut-Off with Continuous
Retry, Three-Phase.