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oil and refrigerant mixed into a misadjusted cycle switch

wirenet on Thu August 14, 2008 11:35 PM User is offline

Country of Origin: United States

What happens if you have a misadjusted cycle switch on a automobile ac system?Does the oil and refriigerant flow slow down in the evaporator and expansion valve and if it does how much .

HECAT on Fri August 15, 2008 9:10 AM User is offline

Overpressurize, freeze up, no cooling, excessive cycling, etc.

Hi and lo cycling switches trip at a set pressure and automatically reset. They are pressure switches that just break contact to the clutch energizing path.

On/Off will only start (speed up) and stop (slow down) the refrigerant and oil flow; not regulate.

Flow regulation is primarily done by the O-tube or TXV, which is very subject to the effects of ambient temp, refrigerant charge, engine RPM, air flow, debris, and more, and more, etc.

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