InstallationQuestion 50 of 110
What is the purpose of a filter drier installed in the liquid line?
a.To meter refrigerant
b.To insulate the line
c.To remove moisture and trap contaminants circulating in the refrigerant
d.To increase suction pressure
Explanation
A liquid-line filter drier adsorbs moisture and captures particulate contaminants, protecting the metering device and compressor. It is typically replaced whenever the system is opened for major service. A saturated drier can restrict flow and should be changed.
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