Section SPS 345.511 - General requirements(1) PRESSURE RELIEF VALVE REPLACEMENT. This is a department rule in addition to the requirements in ANSI/ASHRAE standard 15 section 11.6: (a) All pressure relief valves for any ammonia mechanical refrigeration system that exists on or after September 1, 2010, shall be replaced in accordance with the manufacturer's recommendations and all of the following, except as provided in par. (b): 1. Each valve shall be replaced within 5 years after the date of installation.2. Each valve may not be over 2 years old at the time of installation.3. A record of the valve's installation shall be maintained until the valve is replaced.(b) This subsection does not apply to relief devices that discharge internally to another part of a closed-loop refrigeration system.(2)PERIODIC TESTS. This is a department rule in addition to the requirements in ANSI/ASHRAE standard 15 section 11.6.3: Each of the following emergency devices and systems that exist on or after September 1, 2010, shall be tested at least annually, and documentation of the testing shall be available onsite for inspection by the authorized agent or the department: (a) Treatment and flaring systems.(b) Valves and appurtenances necessary to the operation of emergency refrigeration control boxes.(c) Fans and associated equipment intended to operate emergency ventilation systems.(d) Refrigerant detection and alarm systems.(e) Remote controls for shutdown of compressors and refrigerant pumps.(3)REPORTABLE INCIDENTS. This is a department informational note to be used under ANSI/ASHRAE standard 15 section 11.7, paragraph c: Note: Refrigerants typically should not be discharged except in an emergency. The Department of Natural Resources, federal agencies and local fire departments may have requirements relating to being immediately notified upon the automatic or manual discharge of specified amounts of any refrigerant.
Notification may not be necessary for any of the following conditions:
1. Refrigeration systems operating at pressures below atmospheric and incorporating automatic purge systems.2. Incidental operation of automatic pressure relief valves resulting in minor release of the refrigerant charge.3. Incidental minor releases associated with service operations after system pump-down has been accomplished.Wis. Admin. Code Department of Safety and Professional Services SPS 345.511
CR 10-011: cr. Register August 2010 No. 656, eff. 9-1-10.