Ranco O11-1711 Control Els PW 17895 Common Questions What causes a

Common Questions What causes a Carrier HH19ZA201 limit switch to trip

Always verify the KW rating on the original furnace data plate

The unit features 4-pole operation and is designed for reliability in demanding cycles where refrigeration motor maintenance is a priority

Dual Power Logic: Supports both 24V or millivolt systems with a battery-powered fallback to ensure continuous operation

Ranco O11-1711 Control Els PW 17895 Common Questions What causes aThe Ranco O11 1711 High Pressure Control is a heavy duty single pressure control designed for professional HVACR applications requiring reliable system protection. This SPST high pressure switch features an open on rise action, effectively cutting out the compressor circuit when discharge pressures reach dangerous levels, specifically within the 150 to 450 PSI range. Built with a laser welded bellows for extended service life, the O11 1711 includes an