This diaphragm-actuated switch is commonly utilized for clogged filter detection

Can this switch be used in horizontal or upflow configurations

reaching the required ignition temperature quickly to minimize gas valve dwell time and optimize burner cycles

Built for precision in liquid level control

The spring return mechanism provides a fail-safe closed position upon power loss

Copeland 918-0001-01 Crankcase Heater Els PW 17895 This diaphragm-actuated switch is commonlyThe Copeland 918 0001 01 is a high performance immersion type crankcase heater engineered for industrial HVACR applications requiring reliable refrigerant migration prevention. Operating at 480 Volts and delivering 65 Watts, this heater maintains optimal oil temperature within the compressor sump during off cycles, effectively preventing liquid slugging and ensuring consistent lubrication upon startup. Featuring a 4" insertion length, it is designed