When using a control or controller that does not include integral ground fault, using a ground fault breaker is required to provide protection for the heater tapes used with this product. Failure to do so will put the installation at risk for fire if the heaters short. You will want to use the GFEP breaker that has the higher ~30 mA trip standard required for equipment protection.
CAN THE LCD 7 BE USED TO CONTROL ROOF DE-ICING CABLES/SNOW MELT. I DO NOT HAVE A GUTTER SYSTEM. THE ROOF CABLES ARE MAINLY USED TO KEEP ICE/SNOW AWAY FROM THE SIDES OF SKYLGHT AREAS.
This assumes you already own the LCD-7, an obsolete product since replaced by the technologically advanced Snow Switch® Model LCD-8: Yes.
Tie one yellow output “leg” to the source. This gives 120 Volt across the other yellow and neutral of the unit.