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Summit Ice Melt Systems

PO Box 6928, Tahoe City, CA 96145
Ph: 530-583-8888

summiticemelt.com

Multi-Circuit Standard Ambient Temp Sensing Digital Controllers

                 

4CDC+ ALL-Contactor Controller

Overview

Summit Ice Melt Systems, Inc. Multi-Circuit Digital Controller provides On/Off operation
of its S1 and S2 (120Vac to 277Vac) and EverClear 812 and 822 (120Vac to 277Vac)
self-regulating heater cables by energizing multiple (4, 8, or 12) individual branch
circuits via adjustable control values as set on the temperature controller.

The Controller provides a set point for on/off operation as well as a low-temp cutout of
the circuits. The low-temp cutout shuts the system off when temperatures are so cold
that no snow and ice melting occurs. Both temperatures are easily field adjustable to
suit local conditions. 

Summary of Contents for 4CDC+

Page 1: ... 120Vac to 277Vac and EverClear 812 and 822 120Vac to 277Vac self regulating heater cables by energizing multiple 4 8 or 12 individual branch circuits via adjustable control values as set on the temperature controller The Controller provides a set point for on off operation as well as a low temp cutout of the circuits The low temp cutout shuts the system off when temperatures are so cold that no s...

Page 2: ...A 4 12 rating so they may be mounted indoors or outdoors typically near the circuit breaker panel Each branch circuit must be protected by a ground fault protection device per the NEC A 120Vac protected circuit is required to energize the controller The ambient sensor is mounted outdoors in a shaded location representative of minimum ambient conditions typically on the north side of a building and...

Page 3: ...ndicator light under out2 will appear 4 Press the UP or DOWN arrow button to adjust the value Hold button to scroll 5 Press the SET button again to return to the normal operating mode will display the current sensed temperature with no decimal point Low Temp Cutout can effectively be avoided by setting its value below the lowest expected ambient temperature for example 50 0 NOTE Multi Circuit cont...

Page 4: ...2 13 30A 30mA ground fault equipment protection circuit breakers to be provided for each circuit by installer typical A1 A2 X1A X2 X1A X19 X19 X19 X19 X1 X1A X19 X2 Typical A1 A2 Ground Bar Sized as Required xxx Turn off all power before servicing panel or branch circuits CAUTION HIGH VOLTAGE DANGER Note Locate sensor on the coldest exterior side of structure usually north under the overhang and n...

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