The term “Ansul” has become generic for non-water fire suppression systems. Ansul is actually the name of a company that produces these types of systems. The name Ansul comes from the first syllables of the chemical product ANhydrous SULfur dioxide, which was originally used as a preservative and refrigerant before its use as a fire suppression agent.
Some of the most common non-water-based fire suppression systems are carbon dioxide, dry chemical, aerosol, various foam types, various clean agents, and halon (now prohibited). The Fire Department of New York (FDNY) requires review, inspection and testing of all fire suppression systems prior to approval, and the process is among the more complicated filings.
Two Filings, Twice the Fun
The process for these systems requires two separate and distinct filings, at both the New York City Department of Buildings (DOB) and the FDNY, along with the associated fees. Why? Two different entities at the FDNY review these submissions. One application is a suppression filing (commonly referred to as the mechanical portion). The second is a fire alarm filing (the electrical portion).
The process starts by submitting the Alteration Type II (Alt-2) applications to the DOB. Once the DOB issues job numbers, the submission to FDNY may begin. A registered design professional must sign the completed Application for Plan Examination/Document Review (TM-1) forms, which are submitted to the appropriate departments within FDNY.
Fire Suppression (FP) Filing
- The fire suppression application requires stamped plans that include hydraulic calculations, along with any other supporting information.
- If approved, the Applicant of Record receives an official Letter of Approval, as well as approved plans. Otherwise, the FDNY issues a Letter of Objection, with instructions regarding what necessary changes or information is still required for approval.
Fire Alarm Filing
- The fire alarm filing also requires stamped plans in addition to all pertinent supporting documentation.
- If the application is approved, the job status of the application on the DOB Buildings Information System (BIS) is updated to “PERMIT ENTIRE.” If rejected, the job status will be updated to “P/E DISAPPROVED.” An objection letter stating the necessary changes or additional requirements for approval will be issued and included in the original packet.
Either way, the applicant must track the application and pick up the package at FDNY Headquarters.
Schedule an Inspection
After receiving approvals for both filings, applicants must schedule FDNY inspection of the installed equipment. Applicants are required to attend the inspection with all approved documentation, including both approval letters and plans.
For any additional questions or comments on fire suppression system filings, please contact Milrose Consultants.
