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Doing it again :) - 2x 2.5HP cascade - worklog

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piotres


Membre
Messages : 369

dimanche 01 juillet 2012 à 12:30:59     
Hi

I'm doing it again - this time 2x 2.5HP cascade, without case, without optional adds, just pure power (I hope it'll be powerful ).

Specs :

compressors: HIGHLY (Hitachi) CTHU333WC6-U - R407c, 28488 BTU. 48.8ccm each - 2 pcs
evap: steeper 54mm
XV: captube 0.9 mm / captube 0.9 mm (on both stages)
HX: plate HX , 30 plates
condenser: 4.8 Kw, alu-cu, cooled by 2x 254mm 230V EBM fans
refrigerants : R507/R1150
oilseparator : Shine Year automatic
safety : 2x RANCO cut-offs (one to each stage) with manual reset, Torrecilla 6.0l expansion tank
case : Black metal baseplate
others: -

Work done till now:

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To be continued ...

Regards
Peter
Google




     
piotres


Membre
Messages : 369

mardi 10 juillet 2012 à 00:21:56     
Update.

All is already brazed.

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Plus some electric done, but only to prepare the unit for loadtesting .

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And some "final" electric. No more chineese switches (too much problems with them and they are not trustworthy). Now I use only Arcolectric (England).

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moyen_moins


aka metalazzo | Anti²Bug
Messages : 10202

mardi 10 juillet 2012 à 09:55:51     
So much pipes everywhere
Waiting for load results.

You had a lot of problems with the chinese switches you used to use ?

Message édité par moyen_moins le mardi 10 juillet 2012 à 09:56:35
piotres


Membre
Messages : 369

jeudi 16 août 2012 à 01:25:47     
That should had been a worklog, but ...I hadn't got time to upload pictures .

Unit is already finished .

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First charge.

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CHY shows -120 :

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315W loaded with "cloth" insulation.

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Clear coat on polished pipes.

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1st stage unloaded on CHY (-60*C).

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2nd stage unloaded on voltcraft (-107*C).

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Loaded with 315W after 4 hours test (-103*C).

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Finaly finished .

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And almost ready to go.

Regards
Peter
piotres


Membre
Messages : 369

lundi 20 août 2012 à 01:04:01     
Movie on Youtube:

http://www.youtube.com/watch?v=zbcJwkk_gWM...=1&feature=plcp
Google




     
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