Table C403.3.2(3)—Water chilling packages—Minimum efficiency requirements.
Table C403.3.2(3)
Water Chilling Packages—Minimum Efficiency Requirementsa,b,e,f
| Size Category | | Path A | Path B | Test Procedurec |
Equipment Type | Units | FL | IPLV,IP | FL | IPLV,IP |
Air-cooled chillers | < 150 tons | EER(Btu/Wh) | ≥ 10.100 | ≥ 13.700 | ≥ 9.700 | ≥ 15.800 | |
≥ 150 tons | EER(Btu/Wh) | ≥ 10.100 | ≥ 14.000 | ≥ 9.700 | ≥ 16.100 | |
Air cooled without condenser, electrically operated | All capacities | EER(Btu/Wh) | Air-cooled chillers without condensers shall be rated with matching condensers and comply with the air-cooled chiller efficiency requirements | |
Water cooled, electrically operated, positive displacement | < 75 tons | kW/ton | ≤ 0.750 | ≤ 0.600 | ≤ 0.780 | ≤ 0.500 | |
≥ 75 tons and < 150 tons | kW/ton | ≤ 0.720 | ≤ 0.560 | ≤ 0.750 | ≤ 0.490 | AHRI 550/590 |
≥ 150 tons and < 300 tons | kW/ton | ≤ 0.660 | ≤ 0.540 | ≤ 0.680 | ≤ 0.440 | |
≥ 300 tons and < 600 tons | kW/ton | ≤ 0.610 | ≤ 0.520 | ≤ 0.625 | ≤ 0.410 | |
| ≥ 600 tons | kW/ton | ≤ 0.560 | ≤ 0.500 | ≤ 0.585 | ≤ 0.380 | |
Water cooled, electrically operated, centrifugal | < 150 tons | kW/ton | ≤ 0.610 | ≤ 0.550 | ≤ 0.695 | ≤ 0.440 | |
≥ 150 tons and < 300 tons | kW/ton | ≤ 0.610 | ≤ 0.550 | ≤ 0.695 | ≤ 0.400 | |
≥ 300 tons and < 400 tons | kW/ton | ≤ 0.560 | ≤ 0.520 | ≤ 0.595 | ≤ 0.390 | |
≥ 400 tons and < 600 tons | kW/ton | ≤ 0.560 | ≤ 0.500 | ≤ 0.585 | ≤ 0.380 | |
≥ 600 tons | kW/ton | ≤ 0.560 | ≤ 0.500 | ≤ 0.585 | ≤ 0.380 | |
Air cooled absorption, single effect | All capacities | COP(W/W) | ≥ 0.600 | NR | NAd | NAd | |
Water cooled absorption, single effect | All capacities | COP(W/W) | ≥ 0.700 | NR | NAd | NAd | AHRI 560 |
Absorption double effect, indirect fired | All capacities | COP(W/W) | ≥ 1.000 | ≥ 1.050 | NAd | NAd |
Absorption double effect, direct fired | All capacities | COP(W/W) | ≥ 1.000 | ≥ 1.000 | NAd | NAd | |
For SI: 1 ton = 3517 W, 1 British thermal unit per hour = 0.2931 W, °C = [(°F) - 32]/1.8. |
| NR = No requirement. |
| a | Chapter 6 contains a complete specification of the referenced standards, which includes test procedures, including the referenced year version of the test procedure. |
| b | The requirements for centrifugal chiller shall be adjusted for nonstandard rating conditions per Section C403.3.2.4 and are applicable only for the range of conditions listed there. The requirements for air-cooled, water-cooled positive displacement and absorption chillers are at standard rating conditions defined in the referenced test procedure. |
| c | Both the full load and IPLV.IP requirements must be met or exceeded to comply with this standard. When there is a Path B, compliance can be with either Path A or Path B for any application. |
| d | NA means the requirements are not applicable for Path B and only Path A can be used for compliance. |
| e | FL is the full-load performance requirements, and IPLV.IP is for the part-load performance requirements. |
| f | This table is a replica of ASHRAE 90.1 Table 6.8.1-3 Water-Chilling Packages—Minimum Efficiency Requirements. |
[Statutory Authority: RCW
19.27A.020,
19.27A.025,
19.27A.160 and chapters
19.27A and
19.27 RCW. WSR 22-14-091, 23-12-101, and 23-20-021, § 51-11C-403323, filed 7/1/22, 6/7/23, and 9/25/23, effective 3/15/24.]
