The design, installation, and maintenance of preaction sprinkler systems are governed by multiple national standards and codes. For example, the detection portion of the systems comes under NFPA 72 – National Fire Alarm Code. The design of the mechanical portion is covered by NFPA 13 – Standard for the Installation of Sprinkler Systems. The standard for ongoing inspection and maintenance of the system is NFPA 25 – Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems. Keep it simple – choose PREACTION-PAC and you will receive one instruction manual containing all that you need.