12 CRR-NY 4-9.4NY-CRR

STATE COMPILATION OF CODES, RULES AND REGULATIONS OF THE STATE OF NEW YORK
TITLE 12. DEPARTMENT OF LABOR
CHAPTER I. INDUSTRIAL BOARD OF APPEALS
SUBCHAPTER A. THE INDUSTRIAL CODE
PART 4. LOW PRESSURE BOILERS
SUBPART 4-9. FLAME SAFEGUARD CONTROLS FOR GAS-FIRED BOILERS
12 CRR-NY 4-9.4
12 CRR-NY 4-9.4
4-9.4 Trial-for-ignition period.
(a) Equipment.
Timed trial-for-ignition equipment shall be provided for both the pilot and the main burner.
(b) Input rating under 400,000 BTU/hr per combustion chamber.
For burners with an input rating of less than 400,000 Btu per hour, the trial-for-ignition period for the pilot on automatically fired boilers shall not exceed 90 seconds. The main burner trial-for-ignition period shall not exceed 90 seconds.
(c) Input rating to 5,000,000 BTU/hr per combustion chamber.
For burners with an input rating of 400,000 Btu per hour or more, but less than 5,000,000 Btu per hour, the trial-for-ignition period for the pilot for automatically fired boilers shall not exceed 15 seconds. The main burner trial-for-ignition period shall not exceed 15 seconds.
(d) Input rating over 5,000,000 BTU/hr per combustion chamber.
For burners with an input rating of 5,000,000 Btu per hour and over, the trial-for-ignition period for the pilot shall not exceed 15 seconds. The main burner trial-for-ignition period shall not exceed 15 seconds. On power or inshot type burners of this size, the pilot shall automatically shut off not more than 15 seconds after the main fuel valve is opened. On atmospheric type burners of this size, a constant burning type pilot is acceptable, providing the pilot is proven before the main gas valve is opened.
12 CRR-NY 4-9.4
Current through March 15, 2022
End of Document

IMPORTANT NOTE REGARDING CONTENT CURRENCY: JULY 31, 2023, is the date of the most recently produced official NYCRR supplement covering this rule section. For later updates to this section, if any, please: consult editions of the NYS Register published after this date; or contact the NYS Department of State Division of Admisnistrative Rules at [email protected]. See Help for additional information on the currency of this unofficial version of the NYS Rules.