(Effective until February 1, 2021)
Section C403.3.3—Hot gas bypass.
C403.3.3 Hot gas bypass limitation. Cooling systems shall not use hot gas bypass or other evaporator pressure control systems unless the system is designed with multiple steps of unloading or continuous capacity modulation. The capacity of the hot gas bypass shall be limited as indicated in Table C403.3.3, as limited by Section C403.5.1.
Table C403.3.3
Maximum Hot Gas Bypass Capacity
Rated Capacity | Maximum Hot Gas Bypass Capacity (% of total capacity) |
≤ 240,000 Btu/h | 50 |
≥ 240,000 Btu/h | 25 |
For SI: | 1 British thermal unit per hour = 0.2931 W. |
[Statutory Authority: RCW
19.27A.020,
19.27A.025,
19.27A.160 and chapter
19.27 RCW. WSR 19-24-040, § 51-11C-40333, 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-40333, filed 1/19/16, effective 7/1/16.]
(Effective February 1, 2021)
Section C403.3.3—Hot gas bypass.
C403.3.3 Hot gas bypass limitation. Cooling systems shall not use hot gas bypass or other evaporator pressure control systems unless the system is designed with multiple steps of unloading or continuous capacity modulation. The capacity of the hot gas bypass shall be limited as indicated in Table C403.3.3, as limited by Section C403.5.1.
Table C403.3.3
Maximum Hot Gas Bypass Capacity
Rated Capacity | Maximum Hot Gas Bypass Capacity (% of total capacity) |
≤ 240,000 Btu/h | 50 |
˃ 240,000 Btu/h | 25 |
For SI: | 1 British thermal unit per hour = 0.2931 W. |
[Statutory Authority: RCW
19.27A.025,
19.27A.045 and chapter
19.27 RCW. WSR 20-21-080, § 51-11C-40333, 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-40333, 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-40333, filed 1/19/16, effective 7/1/16.]