Danfoss GX Fact sheet
DANFOSS GX CONSTANT WATTAGE HEATING CABLE SPECIFICATION FOR SNOW AND ICE MELTING
1.0 GENERAL
Supply and install a complete system of heating cables, accessories and controls for snow melting in ramps, slabs, sidewalks, paths, etc.
2.0MATERIAL
2.1Shall be Danfoss GX dual conductor heating cable.
2.2Conductor: Copper or copper alloy with nickel coating.
2.3Insulation: FEP DuPont with an average thickness not less than 0.25mm and
than layer of XLPE.
2.4Shield: Tin coated drain wire combined with 0.050 mm aluminium foil coated
with 0.012 PBT, 100% coverage.
2.5Jacket: PVC with an average thickness not less than 0.75 mm.
2.6Lead free ¼” round heating cable that is both flexible and UV protected.
2.7Shall include 20’ cold lead, single point connection.
2.8Rated temperature: 220°F (105°C), maximum voltage 600V, up to 12 W/ft ( 40W/m) .
2.9Shall be approved to applicable UL and CSA standards.
2.10Heating cable circuit shall be protected by a ground fault device in accordance per NEC article 426 and 427.
3.0 SYSTEM CONTROLS
Option 1: Automatic Snow Controller
The system shall be controlled by Danfoss GX850 dual zone control panel with external digital temperature and moisture ground sensors either directly or through an appropriate contactor.
© 2009 Danfoss Inc. NA.EFHGXMC-S-05/19 Tel: 866-676-8062 Fax: 905-285-2055
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Option 2: Snow Switch Control
The system shall be controlled by Danfoss DS-2B / DS-5 poleor wall-mounted temperature and moisture sensor either directly or through an appropriate contactor.
Option 3: Thermostat
The system shall be controlled by an ambient sensing thermostat Danfoss 088L3422 either directly or through an appropriate contactor.
3.1Automatic Snow Controller shall be microprocessor-based to provide effective, economical, automatic control.
3.2Automatic Snow Controller shall have dual zone capability.
3.3Automatic Snow Controller shall have an adjustable timer providing up to ten hours of system operation after snowfall ceases for complete melting.
3.4Automatic Snow Controller shall have the following modes
a.Automatic
b.Constant OFF
b.Constant ON (manual timer)
3.5Automatic Snow Controller shall have adjustable parameters
a. |
Melting temperature |
|
(33.8°F to 49°F) |
b. |
Moisture sensibility |
5 to |
95 (5 being the most sensitive to moisture) |
b. |
Standby (slab) temperature |
(-4 °F to 32 °F) |
|
3.6Automatic Snow Controller shall be able to indicate the actual temperature and moisture levels for sensors.
3.7Automatic Snow Controller shall have an info-button for help/information.
3.8Automatic Snow Controller shall have self-diagnosis program, which will detect faults and give an alarm.
3.9Automatic Snow Controller shall have individual LEDs to provide a visual indication of alarm and heater operation.
3.10Automatic Snow Controller shall be capable of accepting four ground sensors.
3.11Automatic Snow Controller shall have multi-language capabilities (English, Spanish and French).
3.12Sensors shall include 50’ lead.
© 2009 Danfoss Inc. NA.EFHGXMC-S-05/19 Tel: 866-676-8062 Fax: 905-285-2055
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