While it handles standard thermal cycling in air handlers and furnaces

The Johnson Controls A19DAF-2 is a heavy-duty strap-on temperature control specifically engineered for high-limit or operating control on hot water pipes

this variable pitch sheave is the standard for contractors upgrading fan drives or replacing worn OEM pulleys in light-duty commercial blowers up to 5 HP

This DSI module eliminates the need for a standing pilot

Avoid mounting the actuator below the horizontal plane to prevent moisture buildup in the diaphragm

Resideo L8148A1017 Relay 322057-301 While it handles standard thermalThe Resideo L8148A1017 High Limit Aquastat Relay is a specialized immersion type controller designed for 120Vac forced hydronic heating systems. This unit provides critical high limit protection while functioning as the primary switching relay for both burner and circulator motors. Engineered for high demand residential and commercial boilers, it features a 140 240 degree high limit operating range with a fixed 8 degree differential. The SPST