N.Y.C. Admin. Code § BC Q103: Section BC Q103: Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes

Q103.1 General.

Sprinkler systems, where required by this code, shall be installed in accordance with NFPA 13D, Standard for the Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes, 2016 edition, modified for New York City as follows. Refer to the rules of the department for any subsequent additions, modifications or deletions that may have been made to this standard in accordance with Section 28-103.19 of the Administrative Code.

Chapter 1 Administration No changes.

Chapter 2 Referenced Publications

2.1 Add at end the following: "Where a referenced publication has been modified for the City of New York by the New York City Building Code or the rules of the Department of Buildings, every reference to such publication shall be deemed to include all such modifications. Where the edition of a publication referenced within this standard differs from the edition provided for the same standard in Chapter 35 of the New York City Building Code, the edition provided for in Chapter 35 of the New York City Building Code shall govern."

Chapter 3 Definitions

3.3.11.3 Delete.

3.3.11.7 Delete.

Chapter 4 General Requirements No changes.

Chapter 5 System Components

5.2.2 Add at end the following: "Non-metallic pipe shall be used in wet systems only."

5.2.2.3 Delete.

5.4 Delete.

Chapter 6 Water Supply

6.2 Add the following as item (6):

"(6) A common supply main to the building, serving both sprinklers and domestic uses, may be used if provision is made to prevent flow on the domestic water system upon operation of sprinklers, and closure of the main sprinkler control valve (the house control valve) will shut off the domestic water supply."

6.3 Delete.

Chapter 7 Installation

7.1.1 Delete the words "unless a separate shutoff valve for the sprinkler system is installed in accordance with 7.1.2."

7.1.2 Delete and replace with the following: "Except for the meter set controlling combined domestic water and fire sprinkler systems, sectional control valves and other valves if provided in supply pipes to sprinklers shall be locked open and supervised open by one of the following methods:"

"(a) Supervising station, proprietary or remote station signaling service, or"

"(b) Local signaling service that will cause the sounding of an audible signal."

"Exception: Underground gate valves with roadway boxes need not be supervised."

7.1.3 Delete the words "other than those complying with Section 6.3."

7.6 Add at the end the following: "as modified for New York City."

Chapter 8 Sprinkler Position and Location

8.3.4 Add the following after the word "garages": "provided that at least one sprinkler head is located within 3 feet (914 mm) of any communicating opening between the garage and the dwelling."

8.3.5 Add after the word "attics", the words "without floors".

Chapter 9 Protection from Freezing

9.2.3.1.1 Delete and replace with the following: "Arrangement of supply piping to an anti-freeze system shall be in accordance with NFPA 13-2016 as modified for New York City."

9.2.3.1.2 Delete.

9.2.3.1.3 Delete.

9.2.3.1.4 Delete.

9.2.3.2 Delete.

9.2.3.2.1 Delete.

9.2.3.2.2 Delete.

9.2.3.2.3 Delete.

Chapter 10 Discharge and Hydraulic Calculations

10.4.2.2 Delete the words "unless smaller sizes are permitted by 10.4.2.3."

10.4.2.3 Delete.

Chapter 11 System Acceptance

11.2.1.1 Delete and replace with the following: "Where a Fire Department pumper connection is not provided, the system shall be hydrostatically tested for leakage at 50 psi (344 kPa) above normal system operating pressure and checked visually for leakage at each joint or coupling."

11.2.1.2 Add the following to the end: "As modified for New York City. Dry systems shall also be tested by placing the system under 40 pounds (2.8 bar) air pressure. Any leak that results in a drop in system pressure greater than 2 psi (0.14 bar) in 24 hours shall be corrected. Check for leaks using soapy water brushed on each joint or coupling. Leaks will be shown by the presence of bubbles. This test shall be made prior to concealing of piping."

Chapter 12 Inspection, Testing, and Maintenance

12.1 Add at end the following: "The owner is responsible for the maintenance of the system."

ANNEXES

The annexes are not a part of the requirements of this Referenced Standard but are included for informational purposes only. These annexes contain explanatory material, numbered to correspond with the applicable text paragraphs. In the event of any conflict between the Annexes and the body of the Referenced Standard, particularly where modifications have been made for New York City, the body of the Referenced Standard will govern.

Annex A Explanatory Material

A.5.2.3.2 Delete.

Figure A.6.2(c) Delete the "Fire sprinkler shutoff valve (supervised or lockable)*" shown.

A.6.3 Delete.

Figure A.6.3(a) Delete.

Figure A.6.3(b) Delete.

Figure A.6.3(c) Delete.

Figure A.6.3(d) Delete.

A.10.4.2.3(1) Delete.

Figure A.10.4.2.3(1) Delete.

Annex B Informational References No changes.