Wiring Guide

10
6-446 — WIRING DIAGRAMS MODELS PDP/BDP
5H78233C10 REV A Single-Stage, Intermittent Pilot Ignition, 100% Shut-Off with Continuous Retry, Three-Phase.
t°
Therm
Ignitor
Pressure Switch
W
Terminal Board
Low Volt Therm (By Others)
TD Relay Heater
H
H
F
TD Relay TDC
4
2
3
TD Relay TDC
1
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
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
230V/60Hz/3Ø Power Shown Circuit Breaker (By Others)
L1 L2 L3
BR
BK
Factory Field Wire Nut
24V.Line
Wiring Legend
C
L3
L2L1
Fan Motor
T3T2T1
BL
J-Bo
x
W
O
BK
BL
BL
BL
G
V
F
C
T2
T1
R
BL
Limit Control
Gnd
R
1
3
T-D Relay
H
H
4
2
Power Exhaust Motor
UNIT HEATER WIRING DIAGRAM
MV
Gas Control Combination Alternate
PV
D
D
W
TH TR
PV/MV
Gas Control
Pilot Operator Main Operator
P
M
C
R BL Y W G
O
Ignitor
BK
R BL Y W G
O
Ignitor
R BL Y W G
O
Ignitor
GND
TR(GND)
PV/MV
SPARK
PV
TH(24V)
GND
24V(GND)
MV/PV
PV
24V
SPARK
MV
MV
HONEYWELL ROBERTSHAW
BK
Ignitor
GND
TR(GND)
PV/MV
SPARK
PV
TH(24V)
GND
24V(GND)
MV/PV
PV
24V
SPARK
MV
MV
HONEYWELL ROBERTSHAW
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.
MV
MV/PV
PV
M 1
C 2
P 3
COMBINATION GAS CONTROL
HONEYWELL ROBERTSHAW
(PV)
(MV)
(MV/PV)
MV
PV/MV
PV
W
Alternate Combination Gas Control
43
1
2