We are going to convert a Pre-Action system to a wet system and then flush the entire system after conversion. Question is - Will the current sprinkler heads that are going to be removed, to conduct the flushing, need to be replaced with new sprinkler heads or can the current heads be reinstalled in the same location they were removed from?
This the current code that I have come across;
NFPA 13, 2013 ed.
6.2 Sprinklers. 6.2.1 General. Only new sprinklers shall be installed. 18.104.22.168 When a sprinkler has been removed for any reason, it shall not be reinstalled.