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For contractors performing field calibrations
10" water column threshold is reached
this NPT valve assembly utilizes a patented characterising disc to provide a true equal percentage flow characteristic
Use a manometer to verify if the draft exceeds the -
Most failures result from thermal stress or improper leveling
Williams 7728 Conversion Kit 326010-701 For contractors performing field calibrationsWhen you are field converting a Williams Forsaire furnace for high altitude or specific fuel requirements, the Williams 7728 Conversion Kit is the specific set required to transition from Natural Gas to Liquid Propane (LP). Designed for 40,000 BTU models, this technical kit provides the exact burner orifice and pilot orifice sizing needed to maintain the correct manifold pressure and stoichiometric balance. As a veteran technician knows, using the