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Snow Melting F.A.Q.
How does a Delta-Therm snow melting system work?
What components do I need for a fully functional system?
Why do you recommend installing cold lead in metal conduit?
How does a Delta-Therm snow melting system work?
Your Delta-Therm heating cable or mat is embedded in concrete, sand bed, or asphalt. Your Delta-Therm snow melting control will continuously monitor outdoor conditions via temperature and moisture sensors. When snow melting is called for, your heating cable will turn on and warm the pavement surface to 33°F and melt the snow. For optimal performance, embed the heating element 2-3" below the finished surface.
What components do I need for a fully functional system?
1 or more MI snow melting cable assemblies or snow melting mats.
1 or more MPS, DTC120-S or DTC120-PS snow melting controllers.
1 or more enclosed contactor or GFPE power control panels to switch the heating cable load.
1 or more brass embedded heating system markers as required the National Electric Code.
The national electric code exempts mineral insulated cables from the ground fault requirement for all other embedded electric snow melting systems. Please check your local code.
Why do you recommend installing cold leads in metal conduit?
Metal conduit requires the least amount of labor to dig the trench and it provides the best protection.
The N.E.C. requires the following minimum depth requirements:
- metal conduit: 6" below grade
- pvc conduit: 18" below grade
- direct burial cable: 24" below grade
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