Piping in cold storage shall be installed with pitch. A low pressure alarm to a constantly attended location shall be installed on sprinkler systems supplying freezer sections. P-018 Fittings for visual internal inspection of piping in cold storage rooms shall be provided. P-016 A listed check valve shall be installed in each fire department connection. Sprinklers at floor levels should be arranged so as to be protected from mechanical injury, from falling objects and not cause obstruction within the chute. The Room or area into which the chute discharges shall be protected by automatic sprinklers. A sprinkler shall be provided above the top service opening of the chute, above the lowest service opening, and above service openings at alternate levels in buildings over 2 stories in height. shall be protected internally by automatic sprinklers. P-012 Baffles shall be installed whenever sprinklers are less than 6 feet apart to prevent operating sprinklers from wetting adjacent sprinklers. P-010 The piping between the check valve and the outside hose coupling shall be equipped with an approved automatic drip.
P-008 The water supply for sprinklers only shall be determined from area/density curves. Antifreeze solutions are recommended only for systems not exceeding 40 gallons. P-006 Antifreeze solutions may be used for maintaining automatic sprinkler protection in small unheated areas. P-004 Adequate Water Supply shall be determined after an analysis of water available from the source and hydraulic demands are calculated.
Legible test results and a copy of the test shall be submitted with plans. Recordings shall be during an ordinary work day and made not more than six months prior to plan submittal. Spikes in the pressure recording with less than a 30 minute duration shall not be considered the lowest pressure. P-002 Calculations shall be based on the lowest pressure available from a 24 hour recording, and prove a 5 psi safety margin. These plans were reviewed using NED._ NFPA 13D 2019 Ed._ NFPA 13R 2019 Ed _: Check the Standard you are using. P-000 APPLICABLE CODES: This code reference shall be placed on the cover sheet of your drawings. Automatic fire sprinkler systems are reviewed for the proper design and installation for all types of properties as required by the various adopted fire codes.
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