Lochinvar & A.O. Smith 100289437 Gasket 320788-702 Precision Defrost Control: Maximizes system

Precision Defrost Control: Maximizes system reliability by activating heating elements or adjusting cycles only when critical temperature thresholds are reached

Will this replace a hot surface ignition (HSI) board

It features 5/8" x 5/8" connections and is equipped with a 30-inch capillary tube

this is a conversion kit that modifies your existing 6003 series Williams gas valve by replacing the internal regulator spring and orifices

chassis-ready unit

Lochinvar & A.O. Smith 100289437 Gasket 320788-702 Precision Defrost Control: Maximizes systemFor veteran HVAC contractors servicing Lochinvar Knight or A. O. Smith high efficiency boilers, maintain combustion integrity with the Lochinvar & A. O. Smith 100289437 Gasket Kit. This essential burner gasket replacement prevents dangerous flue gas leakage and ensures a high pressure seal across the critical combustion interface. Designed for WH055 and WH085 residential boilers, this kit provides a professional grade heat exchanger seal that