GROUND
YELLOW
WHITE
ORANGE
BLUE
BLACK
BROWN
RED
BLACK
BLACK
GRAY
RED
RED
GRAY
1
2
3
4
5
6
7
8
9
CONTACTOR
CONTACTOR
LIMIT
ELEMENTS
ELEMENTS
CIRCUIT
BREAKERS
HEATER KIT PLUG
H4HK020H-21A (with circuit breaker)
H3HK020H-01A (without circuit breaker)
H3HK020H-21A (with circuit breaker) H4HK023H-21A (with circuit breaker)
WIRING DIAGRAM
710209D (Replaces 710209C)
FIELD WIRING
FACTORY WIRING
LOW VOLTAGE
HIGH VOLTAGE
SUPPLY VOLTAGE
20 kW and 23 kW, 1-Stage, 240 VAC, 1-Phase Electric Heater Kit
RED
BLACK
¢710209ª¤
BLACK
BLACK
BLACK
BLACK
LIMIT
GRAY
1)
2)
3)
Circuit breakers are not wired to heater kit by the factory,
see Installation Instructions for wiring procedure.
If any of the original wire supplied with this unit must
be replaced, it must be replaced with wiring material
of the same gauge size and temperature rating.
The installation of this heater kit may require a change
in the blower speed tap connection. See Installation
Instructions for details.
NOTES
4) Aluminum or copper supply conductors are suitable.
GROUND
YELLOW
WHITE
ORANGE
BLUE
BLACK
BROWN
RED
BLACK
BLACK
GRAY
RED
RED
GRAY
1
2
3
4
5
6
7
8
9
CONTACTOR
CONTACTOR
LIMIT
ELEMENTS
ELEMENTS
CIRCUIT
BREAKERS
HEATER KIT PLUG
SUPPLY VOLTAGE
RED
BLACK
BLACK
BLACK
BLACK
BLACK
LIMIT
GRAY
GRAY