Section | Title | Comments |
Envelope |
C402.5 | Air leakage | |
Mechanical |
C403.1.2 | Calculation of heating and cooling loads | |
C403.1.3 | Data centers | |
C403.2 | System design | |
C403.3.1 | Equipment and system sizing | |
C403.3.2 | HVAC equipment performance requirements | |
C403.3.6 | Ventilation for Group R occupancy | |
C403.4 | HVAC system controls | |
C403.4.1 | Thermostatic controls | Except for C403.4.1.4 |
C403.4.2 | Off-hour controls | Except for Group R |
C403.4.7 | Combustion heating equipment controls | |
C403.4.8 | Group R-1 hotel/motel guestrooms | See Section C403.7.4 |
C403.4.9 | Group R-2 and R-3 dwelling units | |
C403.4.10 | Group R-2 sleeping units | |
C403.4.11 | Direct digital control systems | |
C403.5.5 | Economizer fault detection and diagnostics (FDD) | |
C403.7 | Ventilation and exhaust systems | Except for C403.7.6 |
C403.8 | Fan and fan controls | |
C403.9.1.1 | Variable flow controls | For cooling tower fans ≥ 7.5 hp |
C403.9.1.2 | Limitation on centrifugal fan cooling towers | For open cooling towers |
C403.10 | Construction of HVAC elements | |
C403.11 | Mechanical systems located outside of the building thermal envelope | |
Service Water Heating |
C404 | Service water heating | |
Lighting and Electrical |
C405.1 | General | |
C405.2 | Lighting controls | |
C405.3 | Exit signs | |
C405.4 | Interior lighting power | |
C405.5 | Exterior building lighting power | |
C405.6 | Electrical transformers | |
C405.7 | Dwelling unit energy consumption | |
C405.8 | Electric motor efficiency | |
C405.9 | Vertical and horizontal transportation | |
C405.10 | Controlled receptacles | |
C405.11 | Voltage drop in feeders | |
Other Requirements |
C407 | Total building performance | |
C408 | System commissioning | |
C409 | Energy metering | |
C410 | Refrigeration requirements | |
C411 | Solar readiness | |
[Statutory Authority: RCW
19.27A.025,
19.27A.045 and chapter
19.27 RCW. WSR 20-21-080, § 51-11C-40702, filed 10/19/20, effective 2/1/21. Statutory Authority: RCW
19.27A.020,
19.27A.025,
19.27A.160 and chapter
19.27 RCW. WSR 19-24-040, § 51-11C-40702, filed 11/26/19, effective 7/1/20. Statutory Authority: RCW
19.27A.025,
19.27A.160, and
19.27.074. WSR 16-03-072, § 51-11C-40702, 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-40702, filed 2/1/13, effective 7/1/13.]