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Old 26th September 2009, 11:43   #1
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Hi folks,
After my single stage practise unit i thought it was time to make something worthy to use With some luck i found a free and useable coolgroup. It had some nice components in it and all they needed was some refurb loving

Here are some pics to start with

The victim


Trading old for new

Made proces, paintjob


The compressor is a pretty strong Uniti hermetique CAE9460T.
I wil update this now and then while more has been done

*edit*
A bit more work has been done

Overall look without fanhouse


New vibrationpads underneath the compressor, the old ones were really grannystyle


Any comments on the de-superheater coil?
The suction lenght?
I'm going to take 2.4M cappilair
 
Old 26th September 2009, 12:07   #2
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What performance are you aiming at?
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Old 26th September 2009, 21:06   #3
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What performance are you aiming at?
I'm happy with any end result
better then nothing i assume
 
Old 27th September 2009, 08:21   #4
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I'm happy with any end result
better then nothing i assume
well ur goal should be beter then the colin unit (still working) -30C idle.
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Old 27th September 2009, 21:11   #5
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well ur goal should be beter then the colin unit (still working) -30C idle.
hehe my prototype reached -32c, the one with the 1/8HP compressor and supersmall condensor.

This unit wil be complicated, i have a R22-502 compressor, so i'm forced to put an alternative gas on it wich is R417A or if possible to change oil R402a.
And i have no idea how that will work out, my best gas laying around is R410A. But i can't use that one cause it would kill the oil and compressor .

I'm hoping to reach at least -50c idle
 
Old 29th September 2009, 08:38   #6
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Yesterday first test of the system .

Learned allot

it seems that evap design is really important , while gassing the system and starting it, temps were dropping very very fast to -40, once the system was filled temps dropped back to a loazy -25c within secs...i was scratching my head, how could this be possible???

-->evap
I made a custom test evap at work , but it has no canals and the capilair lays next to the suction line, in other words , it goes in and gets sucked away before it even makes change to evaporate lol.

Anyhow, a decent evap wil be made so we can test again.

System was filled with R417A
 
Old 29th September 2009, 08:54   #7
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u can alway's order a pre brazed suction line on the net (incl evap).

now where are those pics ???
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Old 29th September 2009, 09:21   #8
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u can alway's order a pre brazed suction line on the net (incl evap).

now where are those pics ???
yeah i saw those at piotres site and they look nice, but like said its more fun when you see your own creation up and running

what pics?
 
Old 29th September 2009, 10:46   #9
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off the unit running offcourse .
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Old 29th September 2009, 11:19   #10
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off the unit running offcourse .
Gimme a few minutes i will take some pics ^^
 
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