Daikin-McQuay 564-664 Expansion Valve 319852-301 An open circuit when the

An open circuit when the part is cool indicates a failed protector that requires replacement

If your furnace blower runs constantly while the burners won

This electronically commutated motor utilizes ball bearings for reduced friction and enhanced thermal efficiency in high-static environments

Balanced Impeller Assembly: Pre-balanced at the factory to reduce shaft play and extend the service life of the motor bearings

Daikin-McQuay 564-664 Expansion Valve 319852-301 An open circuit when theThe Daikin McQuay 564 664 Expansion Valve is a critical liquid metering device engineered for precise refrigerant flow control in industrial HVAC and refrigeration systems. Designed to maintain constant superheat at the evaporator outlet, this thermal expansion valve (TXV) optimizes heat transfer efficiency across varying load conditions. It features a robust thermostatic element and a calibrated orifice assembly to prevent liquid slugging, ensuring