Install Instructions

GX 850 ACP
SINGLE ZONE
(less than 50amps)
Heater power supply
(600V max.). Direct connect to
internal contactor.
Heater power supply
(600V max.). Direct connect to
internal contactor.
Heater power supply
(600V max.). Direct connect to
internal contactor.
Zone A Heaters
(50A max)
Ground or
gutter sensors
120V control
power input
Installation Examples
GX 850 ACP
SINGLE ZONE
(greater than 50amps)
Heaters
Heaters
Heater
power
supply
600V max.
Heater
power
supply
600V max.
120V
control
input
120V
output to
Zone A
contactor
Zone A
Heaters
(50A max.)
(optional)
Ground or
gutter sensors
B
B
A
A
DUAL ZONE
GX 850 ACP
Zone A
heaters
Zone B
heaters
Heater
power
supply
Zone A
Heater
power
supply
Zone B
120V
control
input
120V
output to
Zone A
contactor
120V
output to
Zone B
contactor
Zone A
Heaters
(50A max.)
(optional)
Ground or
gutter sensors
Contactor
Panel
Contactor
Panel
Copyright 2009 Danfoss Inc.
3
EFH.IM.GX850 - 11/2009