copper line dia. from coil to cond.


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Old 03-09-09, 08:56 AM
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copper line dia. from coil to cond.

1. What are the determination factors of the dia. of the lines running to the condensor?
2. if I upgrade from a 3 1/2 to a 4 ton unit can i still use the same dia line?
 
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Old 03-09-09, 09:24 AM
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You may be able to, you need to see what the manf. specs are on the new eqwuipment. Are you replacing both indoor and outdoor equip ? Also, are you changing from R-22 to R410a
 
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Old 03-09-09, 01:46 PM
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what manuf. specs. would I be looking for? or was that a yes I could use the same pressure lines providing I stay with R-22, because the new one "will" be R-22.
also, I'm replacing all- gas furnace, coil, and condensor.

thanks.
 
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Old 03-10-09, 05:37 AM
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Look at the specs for the condenser, it should tell you required liqued and suction line sizes. Are you going to do the complete install yourself ?
 
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Old 03-10-09, 06:57 AM
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Yes, I plan on doing the removal and install myself followed by getting someone (a friend) who is certified in HVAC to inspect, vacuum, and service it.
I know this is not recommended to do in this forum, due to all the postings I have read. And I do respect the experience and quified skills of the people in this job profession, but itís pretty straight forward job for me and the savings will be substantial.
 
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Old 03-10-09, 08:05 AM
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I would advise that you have your friend do all the line set connections, brazing, purging with nitrogen etc. good luck
 
 

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