While designed for Sterling and Beacon Morris

making it a versatile pick for mechanical rooms

With a factory-calibrated open temperature of 55°F and a close temperature of 45°F

ensuring the inducer motor or venter assembly is moving sufficient combustion air before allow the gas valve to energize

The Intermatic GM40AV-W is a heavy-duty electromechanical time switch designed for HVACR

Robertshaw 780-790 HSI Module Freon While designed for Sterling andFor field techs dealing with intermittent ignition failures or flame sensing issues on gas fired heating systems, the Robertshaw 780 790 HSI Module provides a reliable, direct replacement solution. This hot surface ignition control is engineered to drop into tight control cabinets, serving as the primary replacement for the HS780 17NL 304A as well as the 104A and 108A variants. Operating on a standard 120V AC ignition system, the module features a