View the fan from the discharge side

or a dirty evaporator coil

this specific model is calibrated for 0-1

resulting in cabinet vibration

swapping in the CS4AN24A24 ensures the valve body retains its original pressure rating and response time

Daikin-McQuay 667994403 Motor 321894-706 View the fan from theThe Daikin McQuay 667994403 Motor is a high performance OEM replacement motor designed specifically for demanding HVACR applications, including PTAC units and Water Source Heat Pumps (WSHP). Engineered for precision, this 265 277V motor operates at a reliable 1175 RPM, delivering 24W of power to ensure consistent airflow and optimal thermal management in commercial and industrial settings. This 3 speed HVAC motor allows for flexible field adjustments