CIRCUIT
BREAKERS
SUPPLY
VOLTAGE
GROUND
POWER
PLUG
LIMIT
WIRING DIAGRAM
H8HK 3-Phase Electric Heater Kit, 208/240V
Legend
Field Wiring
Factory Wiring:
Low Voltage
High Voltage
NOTES
1. The blower motor speed tap connection may not be as shown. See the Installation Instructions.
2. Disconnect all power before servicing.
3. Transformer may have a dual voltage primary tap. Match the tap position with the supply voltage used.
4. If the Internal wiring is replaced, use only 105
°C copper wire of the same gauge.
TRANSFORMER
24V
BLACK
WHITE RED
GREY
HEATER KIT
PLUG
2
1
BLACK
RED
ELEMENT 1
BLACK
L1
L2
L3
L1
L2
L3
ELEMENT 2
ELEMENT 3
BLACK
YELLOW
RED
BLACK
RED
BLACK
YELLOW
RED
ELEMENT 3
ELEMENT 2
ELEMENT 1
CONTACTOR
BLACK
3 4
5 6
7
RELAY
RED
ORANGE
GREY
From indoor
air handler
circuit board
RED
GREY
From indoor
air handler
circuit board
To indoor
air handler
circuit board
COM
NO
YELLOW
BLACK
BROWN
7114390
08/14