Even if you have and expansion valve instead of an orifice, it's still the least open spot in the system for flow and compressor debris will pile up in it.
I have seen where some expansion valves have a filter screen on their inlets to help keep any debris from clogging up the innards of the valve.
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"I came into this world kicking, screaming,and covered in someone else's blood, I have no problem leaving the same way!"
ÔÇ£If you carry a gun, people will call you paranoid. ThatÔÇÖs ridiculous. If I have a gun, what in the hell do I have to be paranoid about?ÔÇØ -Clint Smith, Thunder Ranch.
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