Wiring Guide

3
6-446 — WIRING DIAGRAMS MODELS PDP/BDP
5H78233C7 REV A Single-Stage, Standing Pilot, 100% Shut-Off, Single-Phase.
3
TD Relay TDC
42
TD Relay TDC
1
ECO
TR
Combination Gas Control
TH
ECO Connection
ECO
TH TR
Combination Gas Control
Low Volt Therm (By Others)
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)
t°
Therm
T1
G
C
F
Xfmr
115V
24V
T2
Limit Control
Indicates Terminal Board Connection
Pressure Switch
Fan Motor
H
H
TD Relay Heater
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
BK
1
3
FACTORY FIELD WIRE NUT
24V.LINE
WIRING LEGEND
Fan Motor
* 24V Xfmr
Te rm i na l Board
W
W
BK
BL
BL
BL
G
V
F
C
T2
T1
R
BL
Limit Control
BL
Gnd
Pressure Switch
T-D Relay
H
H
4
2
R
Power Exhaust Motor
J-Box
TH
TR
ECO
Connectio
ns
ECO
Gas Control Combination Alternate
Switch Pressure
Board "G" Terminal
Connections ECO
Board "G" Ter mi na l
Switch
Pressure
Gas Control Combination Alternate
ECO
TR
TH
Some models may have limit control to pressure switch wire routed outside of J-box