A device that automatically maintains the correct refrigerant level between the condenser and evaporator of a low-pressure chiller is the:
a.Rupture disk
b.Float valve
c.Purge unit
d.Suction accumulator
Explanation
A float valve meters refrigerant flow to maintain the proper level in a low-pressure chiller. The rupture disk is a pressure-relief safety device, the purge unit removes non-condensables, and an accumulator protects the compressor from liquid. Knowing the float's role helps in diagnosing chiller performance.
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