Snow Switch GF PRO - Selecting the Proper Sensor; Available Optional Components

South Bend, Indiana USA | networketi.com
SNOW/ICE CONTROL INSTALLATION MANUAL | PART NO. 23918 REV B
5
sensors
• Two sensor input to allow for application specic
sensor combination such as:
1. A CIT–1 aerial sensor and a GIT–1 gutter sensor
for roof and gutter deicing
2. A CIT–1 aerial sensor and SIT–6E pavement-
mounted sensor for snow melting
• Adjustable 0 – 8 hour hold-on time
• Integral 30 mA of GFEP with manual and automatic
test features
• Compatible with the RCU–4 remote control
• Durable IP66, NEMA 4X enclosure
• UL Listed to UL 873 Temperature-Indicating and
-Regulating Equipment
• UL Listed to UL 1053 Ground-Fault Sensing and
Relaying Equipment
SELECTING THE PROPER SENSOR
The Snow Switch model GF Pro snow and ice control
is designed for use with up to two compatible sensors.
Compatible sensors include the CIT–1, GIT–1, and SIT–
6E snow and ice melting sensors. These sensors have
provided the industry’s most versatile and cost effective
snow melting control when used with Environmental
Technology control panels. Sensors should be selected
to best suit the intended application.
The CIT–1, GIT–1, and SIT–6E snow and ice melting
sensors combine to reliably detect snow and ice in gutter
and pavement applications. The CIT–1 sensor may be
paired with either the GIT–1 sensor for gutter applications
or the SIT–6E sensor for pavement applications. These
sensors detect precipitation as snow at temperatures
below 38°F (3.3°C). Control panels are signaled only if
moisture occurs below this temperature, saving energy
and ensuring reliable melting.
(Table 1) presents the recommended sensor combinations
for use
with the GF Pro snow and ice control.
One or two CIT–1 Sensors
One GIT–1 Sensor
One GIT–1 and one CIT–1 Sensor
One SIT–6E Sensor and one CIT–1 Sensor
For more complete information regarding the sensors
and their individual capabilities, refer to the Products link
on the ETI website, www.networketi.com.
AVAILABLE OPTIONAL COMPONENTS
Prior to installation and set-up, it is rst useful to discuss
two important optional components available for the
Snow Switch GF Pro system. The rst of these optional
components is a Remote Control Unit, RCU–4 (Part
Number 21358), which allows remote operation of the
system away from the control box. The second optional
component is a Temperature Sensor Assembly (Part
Number 19272) which regulates the heating cycle to make
it more efcient. Neither of these optional components
comes with the basic system so either or both of them
must be ordered separately and installed along with the
system, not only to facilitate their installation but also to
optimize their performance.
With the Remote Control Unit, RCU–4, the operator is able
to access the full range of system functions and controls
from a second location. With the RCU–4, the operator can
manually set the Cycle Time, equivalent to the Hold-On
Time setting on the face of the unit itself; manually initiate
or terminate a heating cycle; and test and reset the GFCI
circuitry. The capability for remote operation is especially
useful if the control box is installed either outside or in
TABLE 1. Recommended Sensor Combinations