EN378

[Alistair_Heaton]

In europe

The A2L compliance for R32/R290 heatpumps's

What paper work are they expecting?

Just putting together a building control paper pack for a workshop with one.

As the room is 15x6x2.6m, 234m3 volume and will have a 15kg propane bottle in there, 3 kg of R32 is a bit of a mute point in the grand scale of things.

I might add I am well within limits as per

https://www.refcom.org.uk/media/1221/tb_033_refcom-final-amended-table.pdf.

But the installers seem to have zero clue about EN378

Right scrap the propane bottle staying inside not allowed.

 

[HVAC-Novice]

Who is "they"? Why not ask the entity requesting the paperwork what they expect?

 

[LittleInch]

Does this help?

https://area-eur.be/sites/default/files/2019-07/AREA Introduction to EN 378 - for Publication_0.pdf

Or

https://www.carel.com/blog/-/blogs/...331_blog_en_378_which_cases_does_it_apply_to_

Has equations for the quantity of refrigerant stored.

But compliance and checking of the installation is down to your local building control who probably don't have a clue.

The issue is how you can say and warrant that the whole installation is "compliant with EN 378" when you're not an HVAC designer or engineer.

You might need to find a local or expat HVAC engineer to countersign your design.

Not sure many EU based ones habit these pages....

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[Alistair_Heaton]

Building control is the "they" and its better not to ask these things if they don't mention it but have the paper work sitting for if they do.

But it could also just be the Fprot commissioning sign off.

But if its that then there are several houses near me that have systems well out side code. Because as far as I can tell you can't have the outdoor unit within 1.5 meters of a window/door.

Is there anything special with these 2l refrigerants in the USA?