DAP™–3 Design Assistant divides a snow melting heater load between an APS–4C Snow Switch® and the minimum number of SC–40C Satellite Contactors required.
DAP™–4 Design Assistant performs the same calculations as DAP™–3 while adding a pro forma bill-of-materials that includes cost information in a report format.
Drafting Blocks: If you are using AutoCad® 12 or later, or another drafting or illustration package capable of reading AutoCad® 12 files, we have published a library containing blocks for convenient snow melting and deicing system electrical design. The library includes symbols for ETI sensor and control products along with commonly used auxiliary equipment.
Snow Melting Specifications: Our Specification for Section 15778 Electronic Snow/Ice System is currently available in Adobe Acrobat and Microsoft Word file formats. I recommend the Acrobat versions as they are both smaller in file size and of better quality.