This specific 1/2" NPT gas valve is factory-set for Liquid Propane (LP) operation with a 10" WC manifold pressure setting

providing the headroom needed for heat pumps and heavy-duty condensers

ensuring a drop-in fit that maintains factory flow specifications

the original gasket undergoes compression set and may be compromised

Ensure your combustion air proving circuit is operating within factory specifications with the Weil McLain 511-624-451 Pressure Switch

Browning BX86 Belt 318820-201 This specific 1/2" NPT gasThe Browning BX86 is a professional grade cogged V belt engineered for high demand HVACR and industrial power transmission. Featuring Gripnotch technology, this BX section belt provides superior flexibility and a higher horsepower rating compared to standard wrapped belts. With an 89 inch outside diameter and a 21 32 inch top width, it is constructed from high quality EPDM rubber to withstand extreme temperatures ranging from 60F to +250F. The