General Air Products NGP-WM300, Installation, Operation And Maintenance Manual, Page: 25 / 36

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Section 12 - Nitrogen Membrane Check
irst isolate the nitrogen generator ro the ire rotection s ste b closing the ball valve locate on the o tlet
o the nitrogen storage tan . no ball valve as installe close the valve installe bet een the s rin ler
s ste an the nitrogen generator.
Recor the ti e the nitrogen generator as isolate an the s rin ler s ste s ervisor ress re. his ill be
se to eter ine i there is a lea on the s rin ler s ste si e.
rn itrogen ir ill Valve to itrogen osition.
en the itrogen tlet Valve.
5 ha st the gas in the nitrogen storage tan b sing the ball valve on the botto o the tan ntil the nitrogen
storage ress re is 0 an the co ressor t rns .
ic l close the ball valve.
hec the e brane ress re ga ge it sho l be bet een 100 hen the co ressor is r nning.
en the itrogen est ort Valve.
sing a ortable nitrogen anal er chec the nitrogen rit . he rit sho l rea or greater hen the
ress re in the nitrogen storage tan rea s at least 0 .
Section 13 - Sprinkler System Leak Check
no lea co l be o n in the nitrogen generator an the nit reaches its esire ress res in the allotte ti e this in icates
the s rin ler s ste has a lea larger than the nit can han le in nitrogen generating o e. solate the ire s rin ler s ste
an see i the ress re ro s. itrogen generators are esigne or 1. lea over 4 ho rs er 1 s ne s ste
lea rate nless s eci ie other ise.
o ee s ste in service the nit can r n in ir ill o e hile arrange ents are a e to i s rin ler s ste lea s.