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 Washington Administrative Code (Last Updated: November 23, 2016)
 Title 51. Enterprise Services, Department of (Building Code Council)
 Chapter 51-11C. State Building Code adoption and amendment of the 2015 edition of the International Energy Conservation Code, Commercial.

  Section 51-11C-40340. Section C403.4—Hydronic and multiple-zone HVAC systems.  

Latest version.
  • C403.4 Hydronic and multiple-zone HVAC system controls and equipment (prescriptive). Hydronic and multiple zone HVAC system controls and equipment shall comply with this section.
    For buildings with a total equipment cooling capacity of 300 tons and above, the equipment shall comply with one of the following:
    1. No one unit shall have a cooling capacity of more than 2/3 of the total installed cooling equipment capacity;
    2. The equipment shall have a variable speed drive; or
    3. The equipment shall have multiple compressors.
    [Statutory Authority: RCW 19.27A.025, 19.27A.160, and 19.27.074. WSR 16-03-072, § 51-11C-40340, filed 1/19/16, effective 7/1/16. Statutory Authority: RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. WSR 13-04-056, § 51-11C-40340, filed 2/1/13, effective 7/1/13.]
RCW 19.27A.025, 19.27A.160, and 19.27.074. WSR 16-03-072, § 51-11C-40340, filed 1/19/16, effective 7/1/16. Statutory Authority: RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. WSR 13-04-056, § 51-11C-40340, filed 2/1/13, effective 7/1/13.