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  1. #1
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    HC system basics



    Dear all,

    I am sure that this thread is very basic for the HC experts but since I have no experience in this field, I would like to start this thread for myself and others who are like me .

    As HCs are growing in our industry therefore, I think it is something we need to learn.

    Can anyone explain :

    1- Major difference with DX system with HCFC,...
    2- Design differences
    3- Equipment differences
    4- Safety issues

    And anything you think a beginner must know.

    Again forgive me if this is very simple for you guys.

    Appreciate your help.
    Cheers


    Even Einstein Asked Questions

  2. #2
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    Brian_UK is offline Moderator I am starting to push the Mods: of RE Site Moderator : and general nice guy
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    Re: HC system basics

    Hi Lane, don't work with HCs myself but this BOC tech file might be of interest...

    http://www.bocindustrial.co.uk/bocin...nical_Info.pdf
    Brian - Newton Abbot, Devon, UK
    Retired March 2015

  3. #3
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    Re: HC system basics

    Working with hydrocarbons should be based on several design assumptions to meet.


    1. The fluids are refrigerant grade. Various lighter components can separate and act as non-condensable vapor.
    2. The electrical systems/wiring are per code (usually explosion-proof.
    3. The proper oil is selected. Hydrocarbons tend to thin out the oils and result in loss of adequate lubrication/viscosity.
    4. The proper materials of construction are used. Non-sparking on external rotating devices (fans, couplings, etc.)

    Other than these, it's just a refrigeration system.
    If all else fails, ask for help.


  4. #4
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    Re: HC system basics

    Thanks everybody for your reply.

    Any quantity restriction for residential applications? US And Europe.

    Cheers
    Even Einstein Asked Questions

  5. #5
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    Re: HC system basics

    Quote Originally Posted by lana View Post
    Any quantity restriction for residential applications? US And Europe.

    Cheers
    Section 5 of the above BOC document details some of that.
    Brian - Newton Abbot, Devon, UK
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  6. #6
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    Re: HC system basics

    Quote Originally Posted by lana View Post
    Thanks everybody for your reply.

    Any quantity restriction for residential applications? US And Europe.

    Cheers
    Check out BS EN 378 2008

    Not to sure which part but I am sure refrigerant charge is restriced based on occupancy of the building

  7. #7
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    Re: HC system basics

    Thanks everybody,

    I found the restriction.

    Cheers
    Even Einstein Asked Questions

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