// CODE SNIPPET
1109.7 Pipe Enclosure
JUMP TO FULL CODE CHAPTER
Refrigerant piping and tubing
shall be installed so that it is not subject to damage from an
external source. Soft annealed copper tubing shall not exceed
13/8 inches (35 mm) nominal size. Mechanical joints, other than approved press-connect joints, shall not be made on tubing
exceeding 1/4 of an inch (20 mm) nominal size. Soft
annealed copper tubing conveying refrigerant shall be
enclosed in iron or steel piping and fittings, or in conduit,
molding, or raceway that will protect the tubing against
mechanical injury from an exterior source.
Exceptions:
- Tubing entirely within or tubing within 5 feet (1524 mm) of a refrigerant compressor where so located that it is not subject to external injury.
- Copper tubing serving a dwelling unit, where such tubing contains Group A1 refrigerant and is placed in locations not subject to damage from an external source.
Related Code Sections
1109.7 Refrigeration, Pipe Enclosure
Refrigerant piping and tubing shall
be installed so that it is not subject to damage from an external
source. Soft annealed copper tubing shall ...
California Mechanical Code 2016 > 11 Refrigeration > 1109.0 Refrigeration Piping, Containers, and Valves > 1109.7 Pipe Enclosure
1109.7 Refrigeration, Pipe Enclosure
Refrigerant piping and tubing
shall be installed so that it is not subject to damage from an
external source. Soft annealed copper tubing shall ...
California Mechanical Code 2019 > 11 Refrigeration > 1109.0 Refrigeration Piping, Containers, and Valves > 1109.7 Pipe Enclosure
1310.6 Health Care Facilities and Medical Gas and Medical Vacuum Systems, Backfilling and Trenching
conduit, cover, or enclosure shall be self-draining and not retain groundwater in prolonged contact with the pipe. [NFPA 99:5.1.10 .11.5.3 ...
California Plumbing Code 2019 > 13 Health Care Facilities and Medical Gas and Medical Vacuum Systems > 1310.0 Installation of Piping > 1310.6 Backfilling and Trenching
1310.6 Health Care Facilities and Medical Gas and Medical Vacuum Systems, Backfilling and Trenching
conduit, cover, or enclosure shall be self-draining
and not retain groundwater in prolonged
contact with the pipe. [NFPA 99:5.1.10.11.5.3,
5.3.6.13.3 ...
California Plumbing Code 2016 > 13 Health Care Facilities and Medical Gas and Medical Vacuum Systems > 1310.0 Installation of Piping > 1310.6 Backfilling and Trenching
6004.2.2.10.3 Highly Toxic and Toxic Materials, Valve Closure
close. Where the gas-detection sampling point initiating the gas detection system alarm is within a piping distribution manifold enclosure, the shutoff ...
California Fire Code 2019 > 60 Highly Toxic and Toxic Materials > 6004 Highly Toxic and Toxic Compressed Gases > 6004.2 Indoor Storage and Use > 6004.2.2 General Indoor Requirements > 6004.2.2.10 Gas Detection System > 6004.2.2.10.3 Valve Closure