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WIRING DIAGRAM
11/2019 wra
120v White
120v Black
Chassis
Ground
Off
On
Power
Indicator
Hold
Proof
Proof
Indicator
Hold
Indicator
1000 Watt
Immersible
Water Pan
Element
Humidity
Control
Thermostat
Control
Thermometer
(except
–
INT model)
Terminal
Block
Thermometer
Transformer
(except –INT model)
Blower
1000 Watt
Heat Element
500 Watt Heat
Element
120 volt AC
(White Wire)
(Black Wire)
12 volt DC
(Yellow Wires)
HEAT UNIT WIRE DIAGRAM
For Models:
H-HEAT UNIT-
EXT
* H-HEAT UNIT-
EXT-6
* H-HEAT UNIT-
74
* H-HEAT UNIT-
INT
Manufactured after 12/01/2016
Revised 12/01/2016