How many spare sprinkler heads must we keep on site?

A supply of spare sprinklers (never fewer than six) shall be maintained on the premises so that any sprinklers that have operated or been damaged in any way can be promptly replaced. These sprinklers shall correspond to the types and temperature ratings of the sprinklers in the property. The sprinklers shall be kept in a cabinet located where the temperature to which they are subjected will at no time exceed 100 degrees Fahrenheit (38 degrees Celsius).

A special sprinkler wrench shall also be provided and kept in the cabinet to be used in the removal and installation of sprinklers. The stock of spare sprinklers shall include all types and ratings installed and shall be as follows:

  • For systems having less than 300 sprinklers, not fewer than six sprinklers
  • For systems with 300 to 1000 sprinklers, not fewer than 12 sprinklers
  • For systems with over 1000 sprinklers, not fewer than 24 sprinklers

Show All Answers

1. Does the 2013 sprinkler requirement apply to assisted living and residential board and care type facilities?
2. What about previously waivered conditions?
3. What are the requirements for storage within 18 inches of a sprinkler head?
4. Is there a minimum size requirement for a closet to be sprinklered?
5. How many spare sprinkler heads must we keep on site?
6. Does our sprinkler vendor have to use the annual inspection forms shown in National Fire Protection Agency 25?
7. Please clarify at what point will the Office of the State Fire Marshal cite a sprinkler head for being corroded or dirty?