Search found 3 matches

by HVACLearner
Wed Feb 13, 2019 8:12 pm
Forum: Automotive Air Conditioning Forum
Topic: Making new R134a system in place of old R12 system
Replies: 5
Views: 8588

Re: Making new R134a system in place of old R12 system

Okay then, so I just need parallel condenser with as much increased surface area over my original as possible. Easy. I was assuming there would have been differences internally in the TXV or in the powerhead that would have affected its operation. If there are no serious considerations to be made ab...
by HVACLearner
Wed Feb 13, 2019 3:11 pm
Forum: Automotive Air Conditioning Forum
Topic: Making new R134a system in place of old R12 system
Replies: 5
Views: 8588

Re: Making new R134a system in place of old R12 system

Hi and thank you for your response. Re parts being used: naturally, everything is new in the box and genuine Denso. The compressor I've selected is a 10S20C; specifically 447260-8871. It's a clutched and reciprocating swash plate type. The evaporator I've selected is 476-0045; yet to measure the tru...
by HVACLearner
Wed Feb 13, 2019 6:53 am
Forum: Automotive Air Conditioning Forum
Topic: Making new R134a system in place of old R12 system
Replies: 5
Views: 8588

Making new R134a system in place of old R12 system

Hi guys, I'm looking for advice on a custom auto a/c installation using R134a. I'm not in HVAC, just a mechanic who does the occasional A/C repairs (rebuild compressor, change clutch pulley/parts/etc). My 1980s project car is engine-swapped to a newer motor; so different a/c compressor and no longer...