A19AAB-7 is identical to A19AAB-7C

Ensure the manifold pressure is clocked correctly to meet nameplate requirements during commissioning

Designed specifically for integration with Aaon rooftop units and air handlers

and control module to address complete ignition subsystem failures

This body is designed specifically for the Erie PopTop series actuators

Williams P321888 Manifold Adapter 322056-301 A19AAB-7 is identical to A19AAB-7CThe Williams P321888 Manifold Adapter is a precision engineered OEM replacement part designed specifically for residential and commercial Williams Forsaire furnaces equipped with a standing pilot system. As a veteran grade HVAC replacement part, this adapter ensures a secure, leak free connection between the gas valve and the burner manifold, critical for maintaining proper manifold gas pressure. Furnace manifold repair often requires specific