Motor Types
In Residential and light commercial HVAC we work primarily with PSC (Permanent split capacitor) motors. However, there are some other types that are good to be aware of. PSC (Permanent Split Capacitor) A common medium torque single phase motor with a run capacitor always in the circuit. This type makes up the majority of HVAC […]
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Start Capacitor and Inrush Facts & Myths – Part #2
Thought Experiment #3 – The Start Winding Has No “Inrush” with a run capacitor only  The name “start winding” is an antiquated term for the single-phase residential industry. It's leftover from the days when CSIR (capacitor start, induction run) motors were still used commonly. In a CSIR motor, the start relay removes the start winding […]
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