DOC | Specification Section 22 35 00 DOMESTIC WATER HEAT EXCHANGERS

Hydronic piping specification for Uponor PEX Added anchor point tables to the PEX domestic water and hydronic piping specs, reformatted US hanger and support data, and added ASTM E84 information under quality assurance and in installation sections.

Underground Hydronic Piping specification for Uponor PEX

Radiant heating and cooling Uponor PEX specification.

11/11/25 updates include transition ball valves, kitting services, and updated disinfection guidelines section. 5/22/25 Updates include Uponor Kitting Services information. 2/19/26 Added anchor point tables to the PEX domestic water and hydronic piping specs, reformatted US hanger and support data, and added ASTM E84 information under quality assurance and in installation sections.

Domestic Water Piping Specification for Uponor ChlorFIT Schedule 80 Corzan CPVC. Updates include new warranty information, ASTM D2855 two-step primer and solvent cement instructions standard, and mechanical-cut groove joints information.

Updated July 2024: Removed brass manifolds section; updated Section 3 from 5/8" adapters to 3/4" adapters; updated sizing information for commercial manifolds; removed actuators section for commercial stainless-steel manifolds

Updated May 2025: Updated content on page 4 to clarify language around UV rating versus UV testing.

Added anchor point tables to the PEX domestic water and hydronic piping specs, reformatted US hanger and support data, and added ASTM E84 information under quality assurance and in installation sections.