July 12, 20214 yr comment_20752 Hi all, I'm wondering if anyone has any information on which BS standard a Grade A system would be tested & maintained under in a residential property. Is it BS5839 part 1 or part 6. Sorry I know it seems like a silly question. Report
July 27, 20214 yr comment_20961 Part 6 - but for Grade A systems it simply refers you to the Part 1 service regime (as it's the same kit) Report
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