Wiring Guide

20
6-446 — WIRING DIAGRAMS MODELS PDP/BDP
5H78233C3 REV A Two-Stage, Intermittent Pilot Ignition, 100% Shut-Off, with Continuous Retry, Single-Phase.
J-Box
Power Exhaust
Motor
R
2
4
H
H
T-D RELAY
Gnd
BL
Limit Control
BL
R
T1
T2
C
F
V
G
BL
BL
BL
BK
W
W
Terminal Board
* 24V Xfmr
Fan Motor
3
1
BK
L2(W)
L1(BK)
Second Circuit Breaker Req'd For 230V,200V,1Ø
115V/60Hz/1Ø Power Shown Circuit Breaker (By Others)
W
Two-Stage Low Volt Therm (By Others)
Low High
C
Fan
Motor
TDC
2
4
TD Relay
TD Relay
Power
Exhauster
Motor
3
1
TDC
R BL Y W G
O
Ignitor
BK
R BL Y W G
O
Ignitor
BK
R BL Y W G
O
ROBERTSHAWHONEYWELL
MV
SPARK
24V
PV
MV/PV
24V(GND)
GND
ROBERTSHAWHONEYWELL
MV
MV
SPARK
24V
PV
MV/PV
24V(GND)
GND
TH(24V)
PV
SPARK
PV/MV
TR(GND)
GND
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
Ignitor
IGNITION CONTROLLERIGNITION CONTROLLER
IGNITION CONTROLLERIGNITION CONTROLLER
Wiring Legend
Line
24V.
Factory Field Wire Nut
* Alternate Xfmr. Primary Xfmr Wires 230V/60Hz/1Ø-BK & Y (OR O) 200V/60Hz/1Ø-BK & R Wire nut the wire not used.
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.
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°C wire for replacements.
TD Relay Heater
H
H
UNIT HEATER WIRING DIAGRAM
Pressure Switch
Indicates Terminal Board Connection
Limit Control
T2
24V
115V
Xfmr
F
C
G
T1
Two-Stage Therm
t° t°
High
Low
C
R
BK Y
Circuit Breaker (By Others)
Second Circuit Breaker Req'd. For 230V,200V,1Ø
115V/60Hz/1Ø Power Shown
L1 (BK)
L2 (W)
M C
P
A
B
W
Combination Gas Control
BA
D
D
TH TR
W
W
Alternate Combination Gas Control
MV
PV
PV/MV
Therm "High"
V
P
Operator Lo-Stage
Operator Pilot
C
M
B
Hi-Stage Operator
A
Some models may have limit control to pressure switch wire routed outside of J-box.
Switch Pressure