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21-11-2014, 03:14 AM #1
R410A Piping Distribution System - Pressure Test rating
Hi,
I'm currently involved in the installation of 38AP Carrier units that utilizes R410A.
Question:
Is there any pertinent document that can be used to "justify" the use of 600 and 300 psig on the test (beyond that of the manufacturers documentation)? A code perhaps? A recent ruling?
I've been using pressure test of 600psig (hi-side) and 300psig (lo-side) for the piping system for most of my R410A installations (in particular for VRF multi system - TOSHIBA SMMSi if you may) - which, is as recommended by TOSHIBA themselves.
Im being chased for such documents that was raised recently by our principals.
If anyone here knows of any, please let me know, It'll be a great help.
Thanks