1110.2 More than 110 Pounds of Refrigerant — 2025 California Mechanical Code
California Mechanical Code (Title 24, Part 4) · 2025 edition · updated 2026-09-25 · California
CBSC: official editions, supplements and errata
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) § 1110.2 · Effective January 1, 2026 · Official source: Building Standards Commission
Systems containing more than 110 pounds (49.9 kg) of refrigerant shall have stop valves installed at the following locations: (1) The suction inlet of each compressor, compressor unit, or condensing unit. (2) The discharge outlet of each compressor, compressor unit, or condensing unit. (3) The inlet of each liquid receiver, except for self-contained systems or where the receiver is an integral part of the condenser or condensing unit. (4) The outlet of each liquid receiver. (5) The inlets and outlets of condensers when more than one condenser is used in parallel in the system. Exceptions: (1) Systems that have a refrigerant pumpout function capable of storing entire the refrigerant charge.
(2) Systems that are equipped with the provisions for pumpout of the refrigerant.
(3) Self-contained systems. [ASHRAE 15:9.12.5]
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