Velocity Boiler Works (Crown) 3503800 Pressuretrol 318172-701 Standard HVAC code and manufacturer
Platform notes & fabric story
Description
Velocity Boiler Works (Crown) 3503800 Pressuretrol 318172 701 Standard HVAC code and manufacturer Standard HVAC code and manufacturer specifications require safety relief valves to be installed in a vertical position with the drain line pitched for gravity drainage to prevent sediment buildup on the seat it ensures the pilot flame maintains the necessary millivolt output or ionization signal required by the furnace control board