Specification

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Premium Snow Melt Control
MODEL SCP-120
FEATURES & BENEFITS
DESCRIPTION
• Automatic snow/ice melting control
• Operates electrically- and mechanically - held contactors
for pilot duty applications
• Energy Management Computer (EMC) interface
• Accommodates MI, constant wattage and self-limiting
heaters
• 120 VAC operation voltage
• Multiple sensor capability
• Heater hold-on and test capabilities
• CSA Certifi ed for use in Canada and U.S.
• Simple to install and operate
• Low system costs
• Minimum energy costs
The SCP-120 Snow Melt Control, when used with compatible
sensors, automatically controls snow/ice melting heaters,
ensuring minimum operating costs. Typical applications
include driveways, sidewalks, loading docks and stairs.
The adjustable hold-on timer continues heater operation for up
to 10 hours after snowfall stops to ensure complete melting.
The optional Remote Control Override RCO, can be located
where system operation can be conveniently observed. It
duplicates many of the controls and indicators on the SPC-
120 front panel. It is used to clear tracked and drifting snow
that may not land on a sensor.
**The calibrated 40°F to 90°F (4°C to 32°C) high limit Thermistor
probe sensor (included) prevents excessive temperatures
when using constant wattage and MI heaters. for testing the
sensor, acceptable range is +/- 100,000 Ohms depending
on temperature. It also permits safe testing at outdoor
temperatures too high for continuous heater operation.
The SPC-120 provides a relay closure interface for use with
Energy Management Computers (EMC). This feature can also
be used for general purpose remote control, annunciation and
other advanced applications.
All sensor and communications wiring is NEC Class 2. This
simplifi es installation while enhancing fi re and shock safety.
The SPC-120 can interface with up to six sensors from
the AIR-SS product family. Using more sensors provides
superior performance by better matching the controller to site
performance requirements.
The SPC-120 is an exceptionally capable deicing controller.
For complete information describing its application, installation
and features, please contact Customer Service or check on
the web www.WarmlyYours.com. UL Listed for use in Canada
and U.S. Markets.
(23
*2.125"
(54mm)
*2.125"
(54mm)
2.3125"
(59mm)
*Conduit Entry 3 x 1-1/16" (27mm)
11.500"
(292mm)
12.75"
(324mm)
9.125"
(232mm)
5.5"
2mm)
6.562"
(167mm)
C
L
*1.3125"
(33mm)
C
L
7.5"
(191mm)
**High Limit Sensor Probe
(one sensor included per control)
*Entry Point