OAR 918-225-0310
Exemptions for Refrigerant Piping Systems


(1)

The requirements of OAR 918-225-0430 (Adopted Oregon Boiler and Pressure Vessel Specialty Code)(2)(e) shall be enforced under this rule for all refrigerant piping systems consisting of welded, brazed or mechanically assembled piping and piping fittings exceeding 2 inches NPS, and containing any refrigerant chemical rated as other than A-1 or B-1 by the American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE 34) as adopted by the Oregon Mechanical Specialty Code.

(2)

One and two-family dwelling units and air conditioning refrigeration systems used solely for human comfort are exempt from this rule.

(3)

All refrigeration piping system requirements other than those regulated by this rule are subject to the Oregon Mechanical Specialty Code.
[Publications: Publications referenced are available from the agency.]

Source: Rule 918-225-0310 — Exemptions for Refrigerant Piping Systems, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=918-225-0310.

918‑225‑0240
Definitions
918‑225‑0300
Exemptions for Fired Water Heaters
918‑225‑0310
Exemptions for Refrigerant Piping Systems
918‑225‑0315
Exemptions for Process Piping Systems
918‑225‑0320
Exemptions for Refrigerant or Air Conditioning Pressure Vessels
918‑225‑0330
Exemptions for Unfired Pressure Vessels With an Inside Diameter of Six Inches and Less
918‑225‑0340
Exemptions for Pressure Containing Parts of Piping Components
918‑225‑0350
Exemptions for Hot Water Storage Tanks
918‑225‑0360
Exemptions for Certain Pressure Vessels
918‑225‑0365
Exemptions for Certain Miniature Boilers
918‑225‑0370
Exemptions for Coil-Type Water Boilers
918‑225‑0380
Exemptions for Refrigeration Chillers
918‑225‑0430
Adopted Oregon Boiler and Pressure Vessel Specialty Code
918‑225‑0435
Amendments to the Oregon Boiler and Pressure Vessel Specialty Code
918‑225‑0445
Other Installation Standards
918‑225‑0450
Manufacturer’s Data Reports
918‑225‑0460
Reporting of Accidents and Conditions of Use
918‑225‑0465
Boiler Room Usage
918‑225‑0470
Boiler Operation
918‑225‑0510
Installation of Buried Vessels
918‑225‑0540
Scope of Special Inspector’s Authority
918‑225‑0560
Responsibility of Inspectors
918‑225‑0562
Process Piping Inspector Responsibilities
918‑225‑0565
Reporting of Immediate Hazards to Health or Safety
918‑225‑0570
Boiler and Pressure Vessel Inspection Schedules
918‑225‑0590
Inspection Cycle Extension Program
918‑225‑0600
Permits
918‑225‑0606
Issuance and Purchase of Minor Repair Permits
918‑225‑0609
Use of Minor Repair Permits
918‑225‑0612
Scope of Work Allowed under Minor Repair Permit
918‑225‑0615
Inspection of Minor Repair Permits
918‑225‑0618
Misuse of Minor Repair Permits
918‑225‑0620
Bulk Rate Permits
918‑225‑0630
Special Fee for Dryer Permits
918‑225‑0640
Business and Trade License Fees
918‑225‑0650
Practical Experience Requirement
918‑225‑0660
Certification of Special Inspectors
918‑225‑0665
Certification of Process Piping Inspectors
918‑225‑0670
Fees for Inspector Examination, Certification and Renewal
918‑225‑0691
Boiler, Pressure Vessel and Pressure Piping Installation, Alteration or Repair Licensing Requirements
918‑225‑0700
Responsibility of Boiler Contractors
918‑225‑0720
Welding Requirements for Owner-Users
918‑225‑0730
Requirements for Businesses Doing Welding or Brazing
918‑225‑0740
Quality Control System for Pressure Piping
918‑225‑0745
Contractor Registration
918‑225‑0780
Filing of Insurance Notices
Last Updated

Jun. 8, 2021

Rule 918-225-0310’s source at or​.us