The integrated vent limiting orifice acts as a physical breather hole

it is technically best practice to install it in a position where gravity doesn't compete with the internal spring

this part is precision-engineered for the spring seat and tension rates of Honeywell pneumatic valves

Key Benefits OEM Compatibility: Guaranteed fit and function for Carrier

This direct mount

Nordyne 903110A Ignitor Kit The integrated vent limiting orificeThe Nordyne 903110A Ignitor Kit is a critical replacement for gas fired furnace systems, specifically engineered to supersede older part numbers including 903110 and 9031100. This hot surface ignitor (HSI) features an upgraded silicon carbide element designed to withstand the thermal stress of repeated ignition cycles in high efficiency mobile home furnaces and standard residential air handlers. As a direct fit Nordyne furnace repair part, it includes