A quality residential fire sprinkler program will emphasize the critical importance of competent designs by qualified personnel that are prepared in accordance with nationally recognized standards. Equally important are the qualifications and competencies of the persons who review the plans. Following on that, the installers must be qualified to install the items per the plans.
The final inspection will verify that the system has been installed in compliance with the applicable requirements and will operate if called on. For that reason, the inspector must be competent and qualified. Some states require that inspectors be certified to inspect fire sprinkler systems. The local authority needs to determine the minimum requirements for sprinkler inspectors and take steps to get them trained.
Final inspection and testing should be conducted in a structured manner to reduce the chance of overlooking an item. The recommendation is to begin with a visual inspection of the sprinklers themselves, checking for any improperly installed escutcheons, painted sprinklers one ones damaged by other construction mechanics. The riser should be checked for the required components. All discrepancies must be investigated and resolved before approval is given.
A final pressure check should be made to assure that is water tight and leak-free. The last step is a flow test to check the alarm (if one is required) verify that the required minimum flow and pressure are available at the proper location in the system. If a remote alarm is part of the system, it must also be checked. Once the tests are completed, a certificate of occupancy can be issued.
The NFPA includes sample test forms in the sprinkler standards that local jurisdictions can adapt for their use.