RefrigerationQuestion 67 of 110
As a general principle, adding refrigerant charge to a properly running system tends to do what to the low-side pressure?
a.Lower it significantly
b.Raise it
c.Have no effect
d.Reverse compressor rotation
Explanation
Adding charge generally raises system pressures, including the suction (low-side) pressure, while removing charge lowers them. Technicians interpret these trends together with superheat and subcooling. Charging must be verified against manufacturer targets, not pressure alone.
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