I am wondering why this r290 is so favoured before ... r1270?
This "R1270" you can buy from your local milk store (in US/Canada) ... I presume.
It is also called MAP//PRO-gas .
Bullfinch Gas - 399g MAP//Pro gas disposable cylinder
Purity 99,5% (balance propane).See below ...
http://www.jula.se/media/pdf/product...o,%20R!MAC.pdf
Impurities acc. to European standard:
R1270 - Propylene-Propene-C3H6 Intergas International Gases and Chemicals Limited
R290 - Propane-C3H8 Intergas International Gases and Chemicals Limited
There is odour (<50ppm) and some moisture (?) left in the MAP-gas.
If you build up a system of your own ,you surely install a dryer (alumina/zeolite) in your widget swallowing
easily the possible impurities below 10ppm(weight).
The challenging task is to find an
adaptor linking your gas-bottle into your
... mini-split service valve. Any ideas ... which COLEMAN- adaptor most ok(?) for tapping
the gas/liquid into a hose-adaptor linked with mini-split .
Any help/ideas to be giving from forum rgd. the adaptor -hose-adaptor lay-out?
https://www.google.fi/search?q=colem...w=1252&bih=683
2NEW R410A Manifold Port Flow Control Adapters Hand Valve 1 4x5 16"FFL HVAC Tool | eBay
The AHRI-standard does not recognize the HC-refigerants ... is this really true?
AHRI