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Thread: beginer questions
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17-11-2008, 05:39 PM #1
beginer questions
I am new to air conditioning and this forum,
been a plumber and electrician for a long time now, moved over to Spain (from UK) 3 years ago, my only AC experience is fitting about a dozen split units, dakin, hitachi, verhal, nothing complicated.
so to my beginners questions
1st brazing
this is embarrassing as a plumber, but i have never braised, though with over 25 years in the trade i have seen my share, I will only be working on domestic units with a max 5/8" pipe
Do you use flux?
I assume you clean the joint prior to brazing?
I have only seen you use ex panders to make the joints, I cant find ex panders for 1/4" pipe?
can you use pre made joints?
I have seen locally (only on 1/4")just map gas being used, I had always assumed you needed a small oxy kit to braise?
How do i determine if there is enough gas in the unit?
not new units, pre installed units, I had a leak on a unit, not a joint but a duff o'ring on a gauge hose, I had no idea how much gas had been lost so i just added more gas until it started working properly (here's you all cringe)
I have bought 3 books on AC/Refrigeration but none give any real info on this (for a modern split unit)
any info on this would be appreciated, maybe a good book recommendation
thx
Steve
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