Hydrotherm BM-7989 Gas Valve R-410A The kit typically utilizes a

The kit typically utilizes a White-Rodgers or Honeywell gas valve conversion mechanism

inconsistent manifold pressure leading to "rumbling

but the technical specifications and dimensions are exactly the same

breaking the 24V circuit to the gas valve if the plenum temperature exceeds safe operating parameters

Hydrotherm BM-7989 Gas Valve R-410A The kit typically utilizes aThe Hydrotherm BM 7989 Gas Valve is an industrial grade 3 4" 2 stage combination gas control engineered for high capacity intermittent pilot appliances. Serving as the direct replacement for VR8304Q4511, this valve manages fuel flow with a 300,000 BTU hr capacity, making it a critical component for Hydrotherm boiler service and commercial furnace maintenance. This unit features a straight through body pattern and is designed for 24 Vac systems,