Form #43343530
Mar 09
-33-
FIELD CONNECTION AND THERMOSTAT WIRING DIAGRAMS
A.
LOW VOLTAGE (24V) THERMOSTAT CONNECTIONS – SINGLE HEATERS
LO
HI
C
Burner Control Box
Two-Stage Thermostat
(field supplied)
Ground
N Neutral
L1 Hot (120V)
Power Supply
Cord (120V)
Fused
Disconnect
Switch
Continue To
Additional
Heaters
Receptacle
High Fire
Low Fire
Thermostat
Connection
Block
B.
LOW VOLTAGE (24V) THERMOSTAT CONNECTIONS – MULTIPLE HEATERS
LO
HI
C
LO
HI
C
Burner Control Box
Ground
N Neutral
L1 Hot (120V)
Fused
Disconnect
Switch
Continue To
Additional
Heaters
24V Transformer
1.5 VA rating per relay
(field supplied)
24V
Thermostat
Connection
Block
Two-Stage Thermostat
(field supplied)
Power Supply
Cord (120V)
Receptacle
Power Supply
Cord (120V)
Receptacle
Continue To
Additional
Heaters
High Fire
Low Fire
Burner Control Box
RELAY BOARD
LO 24V HI
LO
C
HI
LO
FIRE
HI
FIRE
RELAY BOARD
LO 24V HI
LO
C
HI
LO
FIRE
HI
FIRE
C
Relay Kit externally
mounted
(PN 44195000)
1/4 Quick connect
terminals
3/16 Quick
connect terminals