Section 408.30935a. Commercial kitchens; ventilation.

a Sections 506.1, 506.3.6, 507.1, 507.2.2, and 507.9, of the code are amended and sections 507.16.1.1 is added to the code to read as follows:

506.1. Ventilation requirements for commercial kitchens. Commercial kitchen hood ventilation ducts and exhaust equipment shall be in compliance with NFPA-96-2011, the standard of the national fire protection association listed in chapter 15.

506.3.6 Grease duct clearances. Grease duct systems  and  exhaust   equipment serving a type I hood shall have clearances to combustibles as required by NFPA 96- 2011, as listed in chapter 15.

Exception: Listed and labeled factory-built commercial kitchen grease ducts and exhaust equipment installed in accordance with section 304.1 of the code.

507.1 General. Commercial kitchen exhaust hoods shall comply with the requirements of this section and NFPA 96-2011, as listed in chapter 15. Hoods shall be type I or type II and shall be designed to capture and confine cooking vapors and residues.

Exceptions:

1.     Factory-built commercial exhaust hoods which are tested in accordance with UL 710-2007, as listed in chapter 15, listed, labeled, and installed in accordance with section

304.1 shall not be required to comply with sections 507.4, 507.7, 507.11, 507.12, 507.13, 507.14, and 507.15 of the code.

2.        Factory-built commercial cooking recirculating systems which are tested in accordance with UL 710B-2011, as listed in chapter 15, listed, labeled, and installed in accordance with section 304.1 of the code shall not be required to comply with sections 507.4, 507.5, 507.7, 507.12, 507.13, 507.14, and 507.15 of the code. Spaces in which these systems are located shall be considered to be kitchens and shall be ventilated in accordance with table 403.3. For the purpose of determining the floor area required to be ventilated, each individual appliance shall be considered as occupying not less than 100 square feet.

3.          Net exhaust volumes for hoods may be reduced during no-load cooking conditions, where engineered or listed multi-speed or variable-speed controls automatically operate the exhaust system to maintain capture and removal of cooking effluents as required. Reduced volumes shall not be below that required to maintain, capture, and remove effluents from the idle cooking appliances that are operating in a standby mode.

507.9. Clearances for type I hood. A type I hood shall be installed with clearances from combustibles as required by NFPA 96-2011as listed in chapter 15.

507.16.1.1 Smoke test. The field test identified in section 507.16.1 of the code shall be conducted in accordance with the smoke testing procedures established by the bureau of construction codes, which are available at no cost from the bureau's web site at www.michigan.gov/bcc, or, from the Michigan Department of Licensing and Regulatory Affairs, Bureau of Construction Codes, 2501 Woodlake Circle, Okemos, Michigan, 48864.

History:   1989 AACS; 1992 AACS; 1995 AACS; 1998-2000 AACS; 2001 AACS;   2003 AACS;