Intermatic GM40AV-W Timer 30067439-890 protecting the mechanical room from

protecting the mechanical room from combustion odors and hazardous exhaust

this diaphragm-actuated switch ensures reliable proof of airflow before allowing ignition or system operation

High-quality windings and core lamination minimize heat dissipation

50" water column to maintain strict adherence to manufacturer safety protocols

Intermatic GM40AV-W Timer 30067439-890 protecting the mechanical room fromThe Intermatic GM40AV W is a heavy duty electromechanical time switch designed for HVACR, lighting, and industrial motor control. Featuring auto voltage detection, this universal timer automatically adjusts between 120V and 277V, eliminating the need for manual DIP switch settings or jumper wires. As a 7 day timer, the "W" model supports complex weekly scheduling with up to 42 ON OFF operations, making it ideal for commercial refrigeration defrost