Use a calibrated manometer to verify the switch closes at the specific inches of water column required by the OEM equipment specifications

this high pressure control is specifically designed for the higher operating pressures associated with R410A air conditioning service and refrigeration units

What are the symptoms of a failing P291-4554RS

Does this unit require a floor drain

Fasco A090 Motor 326010-701 Use a calibrated manometer toThe Fasco A090 Motor is a precision engineered 1 50 HP draft inducer motor designed for high static pressure applications in residential and light commercial furnaces. Operating at 115V and yielding 3000 RPM, this 3. 3 inch diameter shaded pole motor is a critical component for maintaining proper flue gas exhaustion. As an OEM direct replacement draft inducer, the A090 is specifically tailored for compatibility with Rheem, ICP, and Universal