Repairing of Prometeia mach 1, Vapochill LS and LD unit

Hello

Currently I work over repairing 3 single-stages units:
-vapochill LS
-Prommie mach 1
-LD unit.

Each have been incomplete and/or damaged .





Units were not good packed for shipping .



Vapo LS (the strongest damage :eek:), LD SS and Mach 1.



Mach 1 has been without suction line.



I've started with Prommie


I've removed stock electric.



More pictures soon .

Regards
Peter

Hello Piotres,

A lot of work to be done on those SS.
Looks like people go to war with them

yes , You're right :-S.


Prommie Mach 1 in progress :



Fresh oil.



Case will be black now .











New suction line by me - braided flex + 42mm steeper.

And some first run in cold workshop :


Finaly it'll run much warmer .

Did you make some test with load ?

Yes, tested it with 280W, approx -30*C with that load .



LD unit before mod.







New black paint . Not powdercoat, just cheap homemade wet acrylic paint.



Leak testing with nitrogen in water .





Holddown must have been moded because I had only versions for 42/54mm evaps, and that one is 38mm.









Also MUCH bigger condenser. New drier, added shrader valve on discharge side.










to sum up .

BEFORE:



AFTER:

Now Vapochill LS:









Case has been heavy damaged, so I decide to remove it ...



+remove whole stock electric.



and scrap it ..



That's amount of oil which I've poured from compressor :-O - approx 20 ml.



And that's suggusted amount of new oil.



Now that will be just benching unit on baseplate .



First time I soft-solder captube to accumulator - and I've loved that work .



Pressure testing of whole unit together .

Regards
Peter

Testing a whole circuit in a bath ... You're definitely the only person that I know doing that

"vapochill LS" has been finished and loadtested :



Final unloaded temperature.





Final 315W load temperature.



We decided to change evap in "unit with LD case"- old wasn't flat .





Plus suction line will be much longer now. Second suction line for another unit (CPU+GPU ).

I have finished all of them a LONG time ago, but I haven't got much time to upload pictures....but here are them :


"LD" unit before mod:




"LD" unit after mod:





Temperature under 315W dummyload:



------------------------------------

Prometeia before mod:




Prometeia after mod:





Temperature under 315W dummyload:



-----------------------------------

All 3 units before mod:




All 3 units after mod:







I hope that You like them :yepp: :.

Regards
Peter

Nice