WAC 51-11-0603
Building mechanical systems for Group R
Occupancy.
603.1: Group R Occupancies that are space heated by
air-to-air, ground-to-air, or water-to-air heat pumps shall
comply with Table 6-1 or 6-2. System sizing shall be determined
by an analysis consistent with section 503.2 of this Code, or,
when approved by the building official, Chapter 9. All
mechanical equipment efficiencies and service water heating
system efficiencies shall comply with standards as stated in
sections 503 and 504 of this Code.
[Statutory Authority: RCW 19.27A.025, 19.27A.045. 02-01-112, §
51-11-0603, filed 12/18/01, effective 7/1/02. Statutory
Authority: Chapters 19.27, 19.27A and 34.05 RCW. 94-05-059, §
51-11-0603, filed 2/10/94, effective 4/1/94. Statutory
Authority: RCW 19.27A.020 and 1990 c 2. 91-01-112, §
51-11-0603, filed 12/19/90, effective 7/1/91.]