Description
The Lennox 11U71 High Pressure Switch is a safety device in Lennox HVAC systems that function in areas of high altitude. This system include change in the refrigerant pressure since the amount of pressure on the system decreases as the altitude increases. If the refrigerant pressure is low it is not possible to provide the desired cooling and pressure may damage the compressor. Special sensors are on the switch to measure and in case the refrigerant pressure This safety feature protects compressor segments and other components from specific hazards at high altitude. It runs at a global voltage of 50/60Hz and has a single pole single throw electrical
