Chapter 15.12 — MECHANICAL CODE

The 2022 Edition of the California Mechanical Code, including Division II Administration and Appendices A through G, is adopted by reference.

(Ord. No. 23-001, § 1(Exh. 2), 2-28-2023; Ord. No. 19-025, § 1(Exh. B), 12-10-2019; Ord. No. 13-024, § 1(Exh. B), 11-12-2013; Ord. No. 11-005, § 1, 5-24-2011; Ord. 07-049, Exh. A)

The following sections are amended or superseded as indicated.

A.

Division II Administration, Subsection 104.3.1 Construction Documents, is amended to include:

Refrigeration plans shall be prepared and stamped by a mechanical engineer licensed in the State of California when the aggregate compressor horsepower exceeds one hundred horsepower (100hp) and the system contains other than a Group A-1 refrigerant.

B.

Section 303.7.1, Liquefied Petroleum Gas Appliances, is amended by adding the following:

Liquefied petroleum gas fired appliances shall not be located in attics or under floor spaces unless they are installed over a twenty-six (26) gauge sheet metal pan extending six inches (6") beyond each side of appliance. The pan shall have two-inch (2-inch) high sides and have a one and one-half inch (1½") drain to the exterior of the structure. The drain shall not terminate above or within five feet (5') of any opening to the structure.

C.

Section 304.0 Accessibility for Service, Subsection 304.2, Sloped Roof shall be amended to change the following:

On roof slopes 4 units vertical in 12 units horizontal (33 percent slope) amended to read: On roof slopes over 5 units vertical in 12 units horizontal (42 percent slope).

D.

Section 504.3, Domestic Range Vents, is amended by adding the following:

Kitchen ventilation in R-1 or R-3 Occupancies shall be provided by a forced draft metal ventilating hood installed in accordance with requirements of Section 603 or by means of an approved down draft ventilating system, or a forced draft ceiling or wall fan located approximately over the cooking equipment, and listed for the use. All such systems shall have back draft dampers and exhaust ducts that terminate outside the building. Ceiling and wall mounted fans shall be capable of providing a minimum of five (5) air changes per hour.

Ventless hoods shall be installed per the manufacturer's installation instructions.

(Ord. No. 23-001, § 1(Exh. 2), 2-28-2023; Ord. No. 19-025, § 1(Exh. B), 12-10-2019; Ord. No. 13-024, § 1(Exh. B), 11-12-2013; Ord. No. 11-005, § 1, 5-24-2011; Ord. 07-049, Exh. A)