Forum Discussion
jimraysr
Mar 28, 2005Explorer
A help for older AC units is adding a "hard start kit". They just give the compressor a kick in the pants by using a capacitor to put an extra push into (what is normally called) the start winding. They are only about $10 wholesale and wire directly across the run capacitor. (An oval metal can wt. two terminals on top) The HS kit has a relay inside that cuts the start cap. out of the circuit after the compressor is running.
These compressor motors are called permanent split capacitor. They have two windings, a main and aux. When we add a start circuit the windings are called run and start. Same motor.
An important thing to remember is when a compressor stops, there is a high pressure on one side and low on the other. It takes a couple of minutes for the pressure to equalize and lower the torque required to get the assembly to run again.
Jim
These compressor motors are called permanent split capacitor. They have two windings, a main and aux. When we add a start circuit the windings are called run and start. Same motor.
An important thing to remember is when a compressor stops, there is a high pressure on one side and low on the other. It takes a couple of minutes for the pressure to equalize and lower the torque required to get the assembly to run again.
Jim
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