Operating instructions

Installing the Control
Lethal voltages are present within the control enclosure during operation. Some installations may require
two points of disconnect. Tag all circuit breakers off during installation or service.
The GIT–4 comes factory set for 277 volt operation. A jumper located in the control must be changed for
120 or 208 through 240 volt operation. See Figure 2. An incorrect setting may destroy the GIT–4 or render it
inoperative.
The control comes connected to the sensor with 12 feet (3.6 meter) of three conductor cable. The snow and ice
melting heater leads, supply leads and sensor leads terminate in the control enclosure. Locate the control enclosure
outdoors at a place convenient for the wiring connections. Position the control housing so that the sensor cable entry
is positioned at the right of the housing, heater leads exit to the left and the supply leads enter at the bottom. Failing
to orient the housing correctly may cause moisture collection in the housing resulting in equipment damage.
For line supply and load connections use #10 AWG or larger wires rated for at least 194° F (90° C). Figures 4 and
5 show wiring for typical 120/240 volt residential applications and unbalanced 208 or 277 3-phase applications.
Installing the RCU–2
The RCU–2 is an NEC Class 2 device. It can be located up to 150 feet (46 meters) from the control. Use
customer supplied #18 AWG 2-conductor jacketed cable.
Choose a convenient protected indoor location. The RCU–2 mounts in a single gang switch box. The wiring
connections to the RCU–2 are not polarity sensitive and connect to the two blue wires in the low voltage section of
the control enclosure.
Jam Nut
Nut
Sensor
Gutter
Nylon Clamp
Drill
3
/
16
" Hole
2 Places
O-ring
Screw
Figure 1. Sensor mounting