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12-20-2010, 05:21 PM #1
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- Apr 2008
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- McKinney Texas
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Extra copper line at Evaporator. See photo.
Extra copper line at Evaporator. Maybe I am overtired but don't recall seeing of these before. What is extra copper line ?
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12-26-2010, 11:05 PM #2
Zibby Bujno Guest Re: Extra copper line at Evaporator. See photo.
looks like a test port brazed in suction line by installer. Waste of part/money.
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12-27-2010, 05:33 AM #3
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- Apr 2007
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- gainesville fl
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Re: Extra copper line at Evaporator. See photo.
ditto on service port and waste of $$$ pressures should be checked at the condenser
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12-27-2010, 04:14 PM #4
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Re: Extra copper line at Evaporator. See photo.
Factory installed port. Lots of units have them.
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12-28-2010, 02:44 PM #5
Bob Cone Guest Re: Extra copper line at Evaporator. See photo.
It is likely an external equalizer port connection for use with a thermostatic expansion valve.
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01-11-2011, 11:41 AM #6
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- Houston, Texas
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Re: Extra copper line at Evaporator. See photo.
Its factory installed and is used to enter, and subsequently relieve, the shipping pressure in the coil (usually just dry nitrogen).
Originally Posted by Gene South
Contractors use this to quickly verify that the boxed coil they are buying has held its shipping pressure upon pickup at the loading dock. If there is low or no pressure left in the coil then he will not accept it.
After installation it serves no particular purpose.
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