Intermatic FM/1SWUZ-120U Timer 30067439-890 OEM Reliability: Built to withstand

OEM Reliability: Built to withstand the high-amperage demands of electric heating elements

The International Environmental 70005122 Blower Wheel is a critical OEM replacement part engineered specifically for high-performance fan coil units and industrial ventilation assemblies

Contractor-Ready Kit: The -121 suffix designates a full installation kit

Industrial Durability: The hermetically sealed plug-in cell prevents sensor drift caused by the harsh atmosphere inside the burner air tube

Veteran techs recommend ensuring the diaphragm is lightly powdered (common baby powder works) to prevent binding against the housing during high-pressure operation

Intermatic FM/1SWUZ-120U Timer 30067439-890 OEM Reliability: Built to withstandThe Intermatic FM 1SWUZ 120U is a heavy duty 7 day electromechanical timer module engineered for precise automated control in commercial HVACR and industrial systems. Designed for 120V AC applications, this SPDT (Single Pole Double Throw) switch features a robust 21 Amp resistive rating and is capable of handling motor loads up to 1 HP. As a veteran grade panel mount timer, it integrates seamlessly into machine control panels, refrigeration units, and