1105.5 Ventilation of Rooms Containing Condensing Units — 2025 California Mechanical Code
California Mechanical Code (Title 24, Part 4) · 2025 edition · updated 2026-09-25 · California
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Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Mechanical Code (Title 24, Part 4) § 1105.5 · Effective January 1, 2026 · Official source: Building Standards Commission
Units. Where not in a refrigerant machinery room, rooms or spaces in which a refrigerant-containing portion of a condensing unit is installed shall be provided with ventilation in accordance with Section 1105.5.1 or Section 1105.5.2. Ventilation for machinery rooms shall comply with Section 1106.0.
1105.5.1 Permanent Gravity Ventilation Open- ings. Permanent gravity ventilation openings of not less
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(2) The resulting mixture does not change the refrigerant safety group. [ASHRAE 15:7.5.1.7]
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