Filter
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TRG-TRC005-EN 37
period five
Accessories
notes
act as a catalyst in chemical reactions that result in the formation of acids.
These acids can corrode system components and cause the oil to sludge.
The filter drier should be installed close to the solenoid valve to provide the
most protection for the solenoid and expansion valves.
A typical liquid-line filter drier includes a molded, porous core. The core has a
high affinity for moisture and removes foreign matter from the refrigerant.
The two common types of filter driers are replaceable core and sealed. The
replaceable core type allows the core to be easily replaced. The sealed type is
completely closed, reducing the chances of refrigerant leaks.
Ball-type shutoff valves are typically installed just upstream and downstream to
allow the filter drier to be isolated and the core (or unit) replaced.
Liquid-Line Filter Drier
replaceable
core type
sealed type
core
core
Figure 54