Daikin-McQuay 330388501 Crankcase Heater 319847-401 this switch is a direct

this switch is a direct factory replacement for part number 1005548

This vent blower restrictor is designed to calibrate the secondary heat exchanger's static pressure by modulating the flue gas flow rate

0 Cv rating and a maximum close-off pressure of 8 psi

For service technicians and HVAC installers

or the unit displaying specific diagnostic flash codes related to internal board faults

Daikin-McQuay 330388501 Crankcase Heater 319847-401 this switch is a directThe Daikin McQuay 330388501 Crankcase Heater is a mission critical component for maintaining compressor reliability in commercial and industrial HVAC systems. Operating at 120V with a 100W output (alternatively referenced as 140W150W in high capacity 25 30HP applications), this heater is engineered to maintain oil temperature above the refrigerant saturation point. By regulating the thermal environment within the crankcase, it effectively prevents