Precision Fire Protection News

Enforcement Changes to Spare Sprinkler Requirements

BY JONATHAN HART

One of the most cited deficiencies in sprinkler system inspections relate to the requirement to have an appropriate stock of spare sprinklers available. When a sprinkler operates or is damaged it must be replaced in order to place the sprinkler system back into fully functional service. If a sprinkler is not able to be replaced in a timely manner it can result in prolonged impairments where the required level of protection is not being provided. Even if a single head is plugged, that system is not providing full protection. In order to facilitate quick restoration of service, NFPA 13, Standard for the Installation of Sprinkler Systems, and NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems, have requirements for spare sprinklers on located on site.

While the requirements are relatively straightforward this is still a common issue. Two years ago, NFPA Journal included an In Compliance column titled, “When to replace sprinklers, and what your sprinkler cabinet should include.” That article presented reasons why sprinklers might need to be replaced and covered the requirements for spare sprinklers. To make matters slightly more complicated a recent update to standards by The Joint Commission was made to spare sprinkler requirements for facilities which they accredit in order to comply with the Centers for Medicare & Medicaid Services’ (CMS) interpretation of spare stock of sprinklers. That change is effective as of January 1, 2021. More on the specifics of that modification and how that is certainly at the discretion of AHJs is discussed below.

The Requirements

The minimum number of spare sprinklers is based on the overall number of sprinklers on the sprinkler system as follows:

Total Sprinklers in SystemMinimum Number of Spare Sprinklers
Less than 3006
From 300 to 100012
More than 100024

The sprinklers that make up that minimum supply are required to correspond to the types and temperature ratings of the sprinklers in the property. While not directly stated this can be interpreted to state that a spare sprinkler cabinet needs to have at least a minimum of one spare sprinkler per type and temperature classification of what is installed on the system. Beyond that, an annex note states that a minimum of two sprinklers of each type and temperature classification SHOULD be provided. As an annex note, this is informational and not enforceable unless an AHJ decides to enforce more stringent requirements.

Other items related to the spare sprinkler cabinet that are too often overlooked include the requirement that an appropriate sprinkler wrench be provided for each type of sprinkler, that the cabinet be in a location that will prevent the spare sprinklers from being exposed to excessive temperatures, and that a list of the sprinklers installed in the property be posted in the sprinkler cabinet.

Increases for Health Care

As mentioned above, a recent announcement from The Joint Commission has changed the requirements for health care facilities which they accredit to CMS Conditions of Participation. This change states that a minimum of six spare sprinkler heads of each type and temperature rating be readily available. In some cases, this might not result in a major increase, but in many it will require the purchase of additional spare sprinklers and cabinets to hold them.

For example, if a hospital has 800 sprinklers installed but only two different sprinkler types, then the minimum number of spare sprinklers is still 12 total with six of each type. More realistically however, that hospital with 800 sprinklers installed will likely have a combination of quick-response sprinklers, standards response sprinklers, uprights, pendants, or sidewalls, and perhaps have intermediate heads for certain locations, or even dry sprinklers for walk-in freezers. In this case the minimum number of sprinklers as specified by the update would require six of each of these types and temperature classification and likely double or triple the minimum specified in the NFPA standards.

As is the case with all NFPA codes and standards, they are the minimum requirements to provide a reasonable level of safety. AHJs are always able to require more stringent requirements.

“Spare Me”

While missing or inadequate spare sprinklers on a “normal” day isn’t something that impacts the performance of a sprinkler system, not having them readily available when needed can result in impaired systems over a prolonged period.  This can significantly reduce the protection of the building and its occupants and also negatively impact building owners who are either forced to evacuate or implement a dedicated fire watch while waiting. Building owners on the health care side as well as ITM service providers who serve health care facilities should be aware of these changes in the enforcement around spare sprinkler requirements.

 

Article by:
JONATHAN HART
Technical Lead, Principal Engineer at NFPA

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