This unit integrates a manual gas cock

Armstrong valves and seats are lapped together at the factory

it is essential to verify the 0

requiring no external power source

High-Performance Output: Delivers 3450 RPM to provide the necessary negative pressure for consistent pressure switch engagement

Lochinvar & A.O. Smith 100167828 Control 318423-701 This unit integrates a manualFor operations in elevated environments, the Lochinvar & A. O. Smith 100167828 Control is the specific high altitude integrated control required to maintain precise combustion and system safety. Standard control modules are often calibrated for sea level air density, but this OEM replacement part is engineered to manage heating systems at altitudes between 3,000 and 12,000 feet. It actively regulates the blower speed, gas valve, and internal pumps to