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 :eek:.

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

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

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.;)

Thanks everybody for your reply.

Any quantity restriction for residential applications? US And Europe.

Cheers

Quote:

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Originally Posted by lana

Any quantity restriction for residential applications? US And Europe.

Cheers

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Section 5 of the above BOC document details some of that.

Quote:

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Originally Posted by lana

Thanks everybody for your reply.

Any quantity restriction for residential applications? US And Europe.

Cheers

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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

Thanks everybody,

I found the restriction.

Cheers