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  1. #1
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    R22 pipe work & replace technology



    Hi all
    I have a site with 2 x R22 Fujitsu units to be removed and 2 new cassettes to be installed. The pipe work is run through walls, up risers and over a plastered ceiling so i was thinking of re using the existing pipe work and fitting either a Daikin, Mitsi Electric or Toshiba system which i know has their 'replace technology' to use existing pipe work.

    I was wondering if anyone has any tips or recommendations for this install?. The pipe work sizes are the correct size for the new units and as far as i can tell at the survey there has not been any compressor failures.

    Many thanks, Gareth



  2. #2
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    Re: R22 pipe work & replace technology

    I'd like to know of any experiences in this department also!

    He who dies with the most Toys, WINS!

  3. #3
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    Re: R22 pipe work & replace technology

    I can recomend the ME Mr Slim option.

    It has the special filter which is used to flush & clean the system on first start up.
    This is has the benifit of positively cleaning up all the system & removing all contamination oil or other contamination into the filter which is then isolated from the system.

    This seem to me a better option than having a new system with some fancy oil which can operate with some oil mineral oil mix as this still leaves any other contamination to circulate & possibly cause futher damage down the line.

  4. #4
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    Re: R22 pipe work & replace technology

    Just check with the manufacturer for the limitations on pipe length for the pipe size & unit size you need to make sure you are within the max pipe length for that combination.

  5. #5
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    Re: R22 pipe work & replace technology

    The cassettes are a 7kw & a 10kw. Pipe work lengths are about 25 metres with a 3 metre rise so should be ok with all the manufacturers?

    Gareth

  6. #6
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    Re: R22 pipe work & replace technology

    Hi I,ve used Endo-flush many times with no problems

    Please read previous thread

    http://www.refrigeration-engineer.co...ght=endo+flush



    Cheers Bernie

  7. #7
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    Re: R22 pipe work & replace technology

    i have used solkane to flush which works quite well.

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