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// CODE SNIPPET

C403.3.2 HVAC Equipment Performance Requirements

Energy Conservation Code 2021 of Colorado > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.3 Heating and Cooling Equipment Efficiencies > C403.3.2 HVAC Equipment Performance Requirements
JUMP TO FULL CODE CHAPTER
Equipment shall meet the minimum efficiency requirements of Tables C403.3.2(1) through C403.3.2(16) when tested and rated in accordance with the applicable test procedure. Plate-type liquid-to-liquid heat exchangers shall meet the minimum requirements of AHRI 400. The efficiency shall be verified through certification under an approved certification program or, where a certification program does not exist, the equipment efficiency ratings shall be supported by data furnished by the manufacturer. Where multiple rating conditions or performance requirements are provided, the equipment shall satisfy all stated requirements. Where components, such as indoor or outdoor coils, from different manufacturers are used, calculations and supporting data shall be furnished by the designer that demonstrates that the combined efficiency of the specified components meets the requirements herein.
TABLE C403.3.2(1)
ELECTRICALLY OPERATED UNITARY AIR CONDITIONERS AND CONDENSING UNITS—MINIMUM EFFICIENCY REQUIREMENTSc, d
EQUIPMENT
TYPE
SIZE CATEGORY HEADING SECTION TYPE SUBCATEGORY OR RATING CONDITION MINIMUM
EFFICIENCY
TEST PROCEDUREa
Air conditioners, air cooled < 65,000 Btu/hb All Split system, three phase and applications outside US single phaseb 13.0 SEER
before 1/1/2023
13.4 SEER2
after 1/1/2023
AHRI 210/240—2017
before 1/1/2023
AHRI 210/240—2023
after 1/1/2023
Single-package, three phase and applications outside US single phaseb 14.0 SEER
before 1/1/2023
13.4 SEER2
after 1/1/2023
Space constrained, air cooled ≤ 30,000 Btu/hb All Split system, three phase and applications outside US single phaseb 12.0 SEER
before 1/1/2023
11.7 SEER2
after 1/1/2023
AHRI 210/240—2017
before 1/1/2023
AHRI 210/240—2023
after 1/1/2023
Single package, three phase and applications outside US single phaseb 12.0 SEER
before 1/1/2023
11.7 SEER2
after 1/1/2023
Small duct, high velocity, air cooled < 65,000 Btu/hb All Split system, three phase and applications outside US single phaseb 12.0 SEER
before 1/1/2023
12.1 SEER2
after 1/1/2023
AHRI 210/240—2017
before 1/1/2023
AHRI 210/240—2023
after 1/1/2023
Air conditioners, air cooled ≥ 65,000 Btu/h and
< 135,000 Btu/h
Electric resistance
(or none)
Split systemand single package 11.2 EER
12.9 IEER
before 1/1/2023
14.8 IEER
after 1/1/2023
AHRI 340/360
All other 11.0 EER
12.7 IEER
before 1/1/2023
14.6 IEER
after 1/1/2023
≥ 135,000 Btu/h and
< 240,000 Btu/h
Electric resistance
(or none)
11.0 EER
12.4 IEER
before 1/1/2023
14.2 IEER
after 1/1/2023
All other 10.8 EER
12.2 IEER
before 1/1/2023
14.0 IEER
after 1/1/2023
≥ 240,000 Btu/h and
< 760,000 Btu/h
Electric resistance
(or none)
Split system and
single package
10.0 EER
11.6 IEER
before 1/1/2023
13.2 IEER
after 1/1/2023
AHRI 340/360
All other 9.8 EER
11.4 IEER
before 1/1/2023
13.0 IEER
after 1/1/2023
≥ 760,000 Btu/h Electric resistance
(or none)
9.7 EER
11.2 IEER before
1/1/2023
12.5 IEERafter 1/1/2023
All other 9.5 EER
11.0 IEER
before 1/1/2023
12.3 IEER
after 1/1/2023
Air conditioners,
water cooled
< 65,000 Btu/h All Split systemand
single package
12.1 EER
12.3 IEER
AHRI 210/240
≥ 65,000 Btu/h and
< 135,000 Btu/h
Electric resistance
(or none)
12.1 EER
13.9 IEER
AHRI 340/360
All other 11.9 EER
13.7 IEER
≥ 135,000 Btu/h and
< 240,000 Btu/h
Electric resistance
(or none)
12.5 EER
13.9 IEER
All other 12.3 EER
13.7 IEER
≥ 240,000 Btu/h and
< 760,000 Btu/h
Electric resistance
(or none)
12.4 EER
13.6 IEER
All other 12.2 EER
13.4 IEER
≥ 760,000 Btu/h Electric resistance
(or none)
12.2 EER
13.5 IEER
All other 12.0 EER
13.3 IEER
Air conditioners, evaporatively
cooled
< 65,000 Btu/hb All Split system and single package 12.1 EER
12.3 IEER
AHRI 210/240
≥ 65,000 Btu/h and
< 135,000 Btu/h
Electric resistance
(or none)
12.1 EER
12.3 IEER
AHRI 340/360
All other 11.9 EER
12.1 IEER
≥ 135,000 Btu/h and
< 240,000 Btu/h
Electric resistance
(or none)
12.0 EER
12.2 IEER
All other 11.8 EER
12.0 IEER
≥ 240,000 Btu/h and
< 760,000 Btu/h
Electric resistance
(or none)
11.9 EER
12.1 IEER
All other 11.7 EER
11.9 IEER
≥ 760,000 Btu/h Electric resistance
(or none)
11.7 EER
11.9 IEER
All other 11.5 EER
11.7 IEER
Condensing units, air cooled ≥ 135,000 Btu/h — — 10.5 EER
11.8 IEER
AHRI 365
Condensing units, water cooled ≥ 135,000 Btu/h — — 13.5 EER
14.0 IEER
AHRI 365
Condensing units, evaporatively
cooled
≥ 135,000 Btu/h — — 13.5 EER
14.0 IEER
AHRI 365
For SI: 1 British thermal unit per hour = 0.2931 W.
  1. Chapter 6 contains a complete specification of the referenced standards, which include test procedures, including the reference year version of the test procedure.
  2. Single-phase, US air-cooled air conditioners less than 65,000 Btu/h are regulated as consumer products by the US Department of Energy Code of Federal Regulations DOE 10 CFR 430. SEER and SEER2 values for single-phase products are set by the US Department of Energy.
  3. DOE 10 CFR 430 Subpart B Appendix M1 includes the test procedure updates effective 1/1/2023 that will be incorporated in AHRI 210/240—2023.
  4. This table is a replica of ASHRAE 90.1 Table 6.8.1-1 Electrically Operated Unitary Air Conditioners and Condensing Units—Minimum Efficiency Requirements.
TABLE C403.3.2(2)
ELECTRICALLY OPERATED AIR-COOLED UNITARY HEAT PUMPS—MINIMUM EFFICIENCY REQUIREMENTSc, d
EQUIPMENT TYPE SIZE CATEGORY HEADING SECTION TYPE SUBCATEGORY OR RATING CONDITION MINIMUM EFFICIENCY TEST PROCEDUREa
Air cooled (cooling mode) < 66,000 Btu/h All Split system, three phase and applications outside US single phaseb 14.0 SEER before 1/1/2023 14.3 SEER2 after 1/1/2023 AHRI 210/240—2017
before 1/1/2023
AHRI 210/240—2023
after 1/1/2023
Single package, three phase and applications outside US single phaseb 14.0 SEER before 1/1/2023 13.4 SEER2 after 1/1/2023
Space constrained, air cooled (cooling mode) ≤ 30,000 Btu/h All Split system, three phase and applications outside US single phaseb 12.0 SEER before 1/1/2023 11.7 SEER2 after 1/1/2023 AHRI 210/240—2017
before 1/1/2023
AHRI 210/240—2023
after 1/1/2023
Single package, three phase and applications outside US single phaseb 12.0 SEER before 1/1/2023 11.7 SEER2 after 1/1/2023
Single duct, high velocity, air cooled (cooling mode) < 65,000 All Split system, three phase and applications outside US single phaseb 12.0 SEER before 1/1/2023 12.0 SEER2 after 1/1/2023 AHRI 210/240—2017
before 1/1/2023
AHRI 210/240—2023
after 1/1/2023
Air cooled (cooling mode) ≥ 65,000 Btu/h and < 135,000 Btu/h Electric resistance (or none) Split system and single package 11.0 EER 12.2 IEER before 1/1/2023 14.1 IEER after 1/1/2023 AHRI 340/360
All other 10.8 EER 12.0 IEER before 1/1/2023 13.9 IEER after 1/1/2023
≥ 135,000 Btu/h and < 240,000 Btu/h Electric resistance (or none) 10.6 EER 11.6 IEER before 1/1/2023 13.5 IEER after 1/1/2023
All other 10.4 EER 11.4 IEER before 1/1/2023 13.3 IEER after 1/1/2023
≥ 240,000 Btu/h Electric resistance (or none) 9.5 EER 10.6 IEER before 1/1/2023 12.5 IEER after 1/1/2023
All other 9.3 EER 10.4 IEER before 1/1/2023 12.3 IEER after 1/1/2023
Air cooled (heating mode) < 65,000 Btu/h All Split system, three phase and applications outside US single phaseb 8.2 HSPF
before 1/1/2023
7.5 HSPF2
after 1/1/2023
AHRI 210/240—2017
before 1/1/2023
AHRI 210/240—2023
after 1/1/2023
Single package, three phase and applications outside US single phaseb 8.0 HSPF
before 1/1/2023
6.7 HSPF2
after 1/1/2023
Space constrained, air cooled
(heating mode)
≤ 30,000 Btu/h All Split system, three phase and applications outside US single phaseb 7.4 HSPF
before 1/1/2023
6.3 HSPF2
after 1/1/2023
AHRI 210/240—2017
before 1/1/2023
AHRI 210/240—2023
after 1/1/2023
Single package, three phase and applications outside US single phaseb 7.4 HSPF
before 1/1/2023
6.3 HSPF2
after 1/1/2023
Small duct, high velocity, air cooled (heating mode) < 65,000 Btu/h All Split system, three phase and applications outside US single phaseb 7.2 HSPF
before 1/1/2023
6.1 HSPF2
after 1/1/2023
AHRI 210/240—2017
before 1/1/2023
AHRI 210/240—2023
after 1/1/2023
Air cooled (heating mode) ≥ 65,000 Btu/h and
< 135,000 Btu/h (cooling capacity)
All 47°F db/43°F wb
outdoor air
3.30 COPH
before 1/1/2023
3.40 COPH
after 1/1/2023
AHRI 340/360
17°F db/15°F wb
outdoor air
2.25 COPH
≥ 135,000 Btu/h and
< 240,000 Btu/h (cooling capacity)
47°F db/43°F wb
outdoor air
3.20 COPH
before 1/1/2023
3.30 SOPH
after 1/1/2023
17°F db/15°F wb
outdoor air
2.05 COPH
≥ 240,000 Btu/h (cooling capacity) 47°F db/43°F wb
outdoor air
3.20 COPH
17°F db/15°F wb
outdoor air
2.05 COPH
For SI: 1 British thermal unit per hour = 0.2931 W, °C = [(°F) — 32]/1.8, wb = wet bulb, db = dry bulb.
  1. Chapter 6 contains a complete specification of the referenced standards, which include test procedures, including the reference year version of the test procedure.
  2. Single-phase, US air-cooled heat pumps less than 65,000 Btu/h are regulated as consumer products by the US Department of Energy Code of Federal Regulations DOE 10 CFR 430. SEER, SEER2 and HSPF values for single-phase products are set by the US Department of Energy.
  3. DOE 10 CFR 430 Subpart B Appendix M1 includes the test procedure updates effective 1/1/2023 that will be incorporated in AHRI 210/240—2023.
  4. This table is a replica of ASHRAE 90.1 Table 6.8.1-2 Electrically Operated Air-Cooled Unitary Heat Pumps—Minimum Efficiency Requirements.
TABLE C403.3.2(3)
WATER-CHILLING PACKAGES—MINIMUM EFFICIENCY REQUIREMENTSa, b, e, f
EQUIPMENT
TYPE
SIZE CATEGORY UNITS PATH A PATH B TEST PROCEDUREc
Air cooled chillers < 150 tons EER (Btu/Wh) ≥ 10.100 FL ≥ 9.700 FL AHRI 550/590
≥ 13.700 IPLV.IP ≥ 15.800 IPLV.IP
≥ 150 tons ≥ 10.100 FL ≥ 9.700FL
≥ 14.000 IPLV.IP ≥ 16.100 IPLV.IP
Air cooled without condenser, electrically operated All capacities EER (Btu/Wh) Air-cooled chillers without condenser must be rated with matching condensers and comply with air-cooled chiller efficiency requirements AHRI 550/590
Water cooled, electrically operated positive displacement < 75 tons kW/ton ≤ 0.750 FL ≤ 0.780 FL AHRI 550/590
≤ 0.600 IPLV.IP ≤ 0.500 IPLV.IP
≥ 75 tons and < 150 tons ≤ 0.720 FL ≤ 0.750 FL
≤ 0.560 IPLV.IP ≤ 0.490 IPLV.IP
≥ 150 tons and < 300 tons ≤ 0.660 FL ≤ 0.680 FL
≤ 0.540 IPLV.IP ≤ 0.440 IPLV.IP
≥ 300 tons and < 600 tons ≤ 0.610 FL ≤ 0.625 FL
≤ 0.520 IPLV.IP ≤ 0.410 IPLV.IP
≥ 600 tons ≤ 0.560 FL ≤ 0.585 FL
≤ 0.500 IPLV.IP ≤ 0.380 IPLV.IP
Water cooled, electrically operated centrifugal < 150 tons kW/ton ≤ 0.610 FL ≤ 0.695 FL AHRI 550/590
≤ 0.550 IPLV.IP ≤ 0.440 IPLV.IP
  ≤ 0.610 FL ≤ 0.635 FL
≤ 0.550 IPLV.IP ≤ 0.400 IPLV.IP
≥ 300 tons and
< 400 tons
≤ 0.560 FL ≤ 0.595 FL
≤ 0.520 IPLV.IP ≤ 0.390 IPLV.IP
≥ 400 tons and
< 600 tons
≤ 0.560 FL ≤ 0.585 FL
≤ 0.500 IPLV.IP ≤ 0.380 IPLV.IP
≥ 600 tons ≤ 0.560 FL ≤ 0.585 FL
≤ 0.500 IPLV.IP ≤ 0.380 IPLV.IP
Air cooled absorption, single effect All capacities COP (W/W) ≥ 0.600 FL NAd AHRI 560
Water cooled absorption, single effect All capacities COP (W/W) ≥ 0.700 FL NAd AHRI 560
Absorption double effect, indirect fired All capacities COP (W/W) ≥ 1.000 FL NAd AHRI 560
≥ 0.150 IPLV.IP
Absorption double effect, direct fired All capacities COP (W/W) ≥ 1.000 FL NAd AHRI 560
≥ 1.000 IPLV
  1. Chapter 6 contains a complete specification of the referenced standards, which include test procedures, including the reference year version of the test procedure.
  2. The requirements for centrifugal chillers shall be adjusted for nonstandard rating conditions per Section C403.3.2.1 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 reference test procedure.
  3. 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.
  4. NA means the requirements are not applicable for Path B, and only Path A can be used for compliance.
  5. FL is the full-load performance requirements, and IPLV.IP is for the part-load performance requirements.
  6. This table is a replica of ASHRAE 90.1 Table 6.8.1-3 Water-Chilling Packages—Minimum Efficiency Requirements.
TABLE C403.3.2(4)
ELECTRICALLY OPERATED PACKAGED TERMINAL AIR CONDITIONERS, PACKAGED TERMINAL HEAT PUMPS, SINGLE-PACKAGE VERTICAL AIR CONDITIONERS, SINGLE-PACKAGE VERTICAL HEAT PUMPS, ROOM AIR CONDITIONERS AND ROOM AIR-CONDITIONER HEAT PUMPS—MINIMUM EFFICIENCY REQUIREMENTSe
EQUIPMENT TYPE SIZE CATEGORY (INPUT) SUBCATEGORY OR RATING CONDITION MINIMUM EFFICIENCYd TEST PROCEDUREa
PTAC (cooling mode)
standard size
< 7,000 Btu/h 95°F db/75°F wb
outdoor airc
11.9 EER AHRI 310/380
≥ 7,000 Btu/h and
≤ 15,000 Btu/h
14.0 — (0.300 × Cap/1,000) EERd
> 15,000 Btu/h 9.5 EER
PTAC (cooling mode)
nonstandard sizea
< 7,000 Btu/h 95°F db/75°F wb
outdoor airc
9.4 EER AHRI 310/380
≥ 7,000 Btu/h and
≤ 15,000 Btu/h
10.9 — (0.213 × Cap/1,000) EERd
> 15,000 Btu/h 7.7 EER
PTHP (cooling mode)
standard size
< 7,000 Btu/h 95°F db/75°F wb
outdoor airc
11.9 EER AHRI 310/380
≥ 7,000 Btu/h and
≤ 15,000 Btu/h
14.0 — (0.300 × Cap/1,000) EERd
> 15,000 Btu/h 9.5 EER
PTHP (cooling mode)
nonstandard sizeb
< 7,000 Btu/h 95°F db/75°F wb
outdoor airc
9.3 EER AHRI 310/380
≥ 7,000 Btu/h and
≤ 15,000 Btu/h
10.8 — (0.213 × Cap/1,000) EERd
> 15,000 Btu/h 7.6 EER
PTHP (heating mode)
standard size
< 7,000 Btu/h 47°F db/43°F wb
outdoor air
3.3 COPH AHRI 310/380
≥ 7,000 Btu/h and
≤ 15,000 Btu/h
3.7 — (0.052 × Cap/1,000) COPHd
> 15,000 Btu/h 2.90 COPH
PTHP (heating mode)
nonstandard sizeb
< 7,000 Btu/h 47°F db/43°F wb
outdoor air
2.7 COPH AHRI 310/380
≥ 7,000 Btu/h and
≤ 15,000 Btu/h
2.9 — (0.026 × Cap/1000) COPHd
> 15,000 Btu/h 2.5 COPH
SPVAC (cooling mode)
single and three phase
< 65,000 Btu/h 95°F db/75°F wb
outdoor airc
11.0 EER AHRI 390
≥ 65,000 Btu/h and
≤ 135,000 Btu/h
10.0 EER
≥ 135,000 Btu/h and
≤ 240,000 Btu/h
10.0 EER
SPVHP (cooling mode) < 65,000 Btu/h 95°F db/75°F wb
outdoor airc
11.0 EER AHRI 390
≥ 65,000 Btu/h and
≤ 135,000 Btu/h
10.0 EER
≥ 135,000 Btu/h and
≤ 240,000 Btu/h
10.1 EER
SPVHP(heating mode) < 65,000 Btu/h 47°F db/43°F wb
outdoor air
3.3 COPH AHRI 390
≥ 65,000 Btu/h and
≤ 135,000 Btu/h
3.0 COPH
≥ 135,000 Btu/h and
≤ 240,000 Btu/h
3.0 COPH
Room air conditioners without reverse cycle with louvered sides for applications outside US < 6,000 Btu/h — 11.0 CEER ANSI/AHAM RAC-1
≥ 6,000 Btu/h and < 8,000 Btu/h — 11.0 CEER
≥ 8,000 Btu/h and
< 14,000 Btu/h
— 10.9 CEER
≥ 14,000 Btu/h and
< 20,000 Btu/h
— 10.7 CEER
≥ 20,000 Btu/h and
< 28,000 Btu/h
— 9.4 CEER
≥ 28,000 Btu/h — 9.0 CEER
Room air conditioners without louvered sides < 6,000 Btu/h — 10.0 CEER ANSI/AHAM RAC-1
≥ 6,000 Btu/h and < 8,000 Btu/h — 10.0 CEER
≥ 8,000 Btu/h and
< 11,000 Btu/h
— 9.6 CEER
≥ 11,000 Btu/h and
< 14,000 Btu/h
— 9.5 CEER
≥ 14,000 Btu/h and
< 20,000 Btu/h
— 9.3 CEER
≥ 20,000 Btu/h — 9.4 CEER
Room air conditioners with reverse cycle, with louvered sides for applications outside US < 20,000 Btu/h   9.8 CEER ANSI/AHAM RAC-1
≥ 20,000 Btu/h — 9.3 CEER
Room air conditioners with reverse cycle without louvered sides for applications outside US < 14,000 Btu/h — 9.3 CEER ANSI/AHAM RAC-1
≥ 14,000 Btu/h — 8.7 CEER
Room air conditioners, casement only for applications outside US All — 9.5 CEER ANSI/AHAM RAC-1
Room air conditioners, casement slider for applications outside US All — 10.4 CEER ANSI/AHAM RAC-1
For SI: 1 British thermal unit per hour = 0.2931 W, °C = [(°F) — 32]/1.8, wb = wet bulb, db = dry bulb.
"Cap" = The rated cooling capacity of the project in Btu/h. Where the unit's capacity is less than 7,000 Btu/h, use 7,000 Btu/h in the calculation. Where the unit's capacity is greater than 15,000 Btu/h, use 15,000 Btu/h in the calculations.
  1. Chapter 6 contains a complete specification of the referenced standards, which include test procedures, including the reference year version of the test procedure.
  2. Nonstandard size units must be factory labeled as follows: "MANUFACTURED FOR NONSTANDARD SIZE APPLICATIONS ONLY; NOT TO BE INSTALLED IN NEW STANDARD PROJECTS." Nonstandard size efficiencies apply only to units being installed in existing sleeves having an external wall opening of less than 16 inches (406 mm) high or less than 42 inches (1067 mm) wide and having a cross-sectional area less than 670 square inches (0.43 m2).
  3. The cooling-mode wet bulb temperature requirement only applies for units that reject condensate to the condenser coil.
  4. "Cap" in EER and COPH equations for PTACs and PTHPs means cooling capacity in Btu/h at 95°F outdoor dry-bulb temperature.
  5. This table is a replica of ASHRAE 90.1 Table 6.8.1-4 Electrically Operated Packaged Terminal Air Conditioners, Packaged Terminal Heat Pumps, Single-Package Vertical Air Conditioners, Single-Package Vertical Heat Pumps, Room Air Conditioners, and Room Air-Conditioner Heat Pumps—Minimum Efficiency Requirements.
TABLE C403.3.2(5)
WARM-AIR FURNACES AND COMBINATION WARM-AIR FURNACES/AIR-CONDITIONING UNITS, WARM-AIR DUCT FURNACES AND UNIT HEATERS—MINIMUM EFFICIENCY REQUIREMENTSg
EQUIPMENT TYPE SIZE CATEGORY (INPUT) SUBCATEGORY OR RATING CONDITION MINIMUM EFFICIENCY TEST PROCEDUREa
Warm-air furnace, gas fired for application outside the US < 225,000 Btu/h Maximum capacityc 80% AFUE
(nonweatherized) or 81% AFUE
(weatherized) or 80% Etb, d
DOE 10 CFR 430 Appendix N or
Section 2.39, Thermal
Efficiency, ANSI Z21.47
Warm-air furnace, gas fired < 225,000 Btu/h Maximum capacityc 80% Etb, d
before 1/1/2023 81% Etd
after 1/1/2023
Section 2.39, Thermal
Efficiency, ANSI Z21.47
Warm-air furnace, oil fired for application outside the US < 225,000 Btu/h Maximum capacityc 83% AFUE
(nonweatherized) or 78% AFUE
(weatherized) or 80% Etb, d
DOE 10 CFR 430 Appendix N or
Section 42, Combustion, UL 727
Warm-air furnace, oil fired < 225,000 Btu/h Maximum capacityc 80% Et
before 1/1/2023 82% Etd after 1/1/2023
Section 42, Combustion, UL 727
Electric furnaces for applications outside the US < 225,000 Btu/h All 96% AFUE DOE 10 CFR 430 Appendix N
Warm-air duct furnaces, gas fired All capacities Maximum capacityc 80% Ece Section 2.10, Efficiency, ANSI Z83.8
Warm-air unit heaters, gas fired All capacities Maximum capacityc 80% Ece, f Section 2.10, Efficiency, ANSI Z83.8
Warm-air unit heaters, oil fired All capacities Maximum capacityc 80% Ece, f Section 40, Combustion, UL 731
For SI: 1 British thermal unit per hour = 0.2931 W.
  1. Chapter 6 contains a complete specification of the referenced standards, which include test procedures, including the reference year version of the test procedure.
  2. Combination units (i.e., furnaces contained within the same cabinet as an air conditioner) not covered by DOE 10 CFR 430 (i.e., three-phase power or with cooling capacity greater than or equal to 65,000 Btu/h) may comply with either rating. All other units greater than 225,000 Btu/h sold in the US must meet the AFUE standards for consumer products and test using USDOE's AFUE test procedure at DOE 10 CFR 430, Subpart B, Appendix N.
  3. Compliance of multiple firing rate units shall be at the maximum firing rate.
  4. Et = thermal efficiency. Units must also include an interrupted or intermittent ignition device (IID), have jacket losses not exceeding 0.75 percent of the input rating, and have either power venting or a flue damper. A vent damper is an acceptable alternative to a flue damper for those furnaces where combustion air is drawn from the conditioned space.
  5. Ec = combustion efficiency (100 percent less flue losses). See test procedure for detailed discussion.
  6. Units must also include an interrupted or intermittent ignition device (IID) and have either power venting or an automatic flue damper.
  7. This table is a replica of ASHRAE 90.1 Table 6.8.1-5 Warm-Air Furnaces and Combination Warm-Air Furnaces/Air-Conditioning Units, Warm-Air Duct Furnaces, and Unit Heaters—Minimum Efficiency Requirements.
TABLE C403.3.2(6)
GAS- AND OIL-FIRED BOILERS—MINIMUM EFFICIENCY REQUIREMENTSi
EQUIPMENT TYPEb SUBCATEGORY OR RATING CONDITION SIZE CATEGORY (INPUT) MINIMUM EFFICIENCY EFFICIENCY AS OF
3/2/2022
TEST PROCEDUREa
Boilers, hot water Gas fired < 300,000 Btu/hg, h for applications outside
US
82% AFUE 82% AFUE DOE 10 CFR 430 Appendix N
≥ 300,000 Btu/h and
≤ 2,500,000 Btu/he
80% Etd 80% Etd DOE 10 CFR 431.86
> 2,500,000 Btu/hb 82% Ecc 82% Ecc
Oil firedf < 300,000 Btu/hg,h for applications outside
US
84% AFUE 84% AFUE DOE 10 CFR 430 Appendix N
≥ 300,000 Btu/h and
≤ 2,500,000 Btu/he
82% Etd 82% Etd DOE 10 CFR 431.86
> 2,500,000 Btu/hb 84% Ecc 84% Ecc
Boilers, steam Gas fired < 300,000 Btu/hg for applications outside
US
80% AFUE 80% AFUE DOE 10 CFR 430 Appendix N
Gas fired—all, except natural draft ≥ 300,000 Btu/h and
≤ 2,500,000 Btu/he
79% Etd 79% Etd DOE 10 CFR 431.86
> 2,500,000 Btu/hb 79% Etd 79% Etd
Gas fired—natural draft ≥ 300,000 Btu/h and
≤ 2,500,000 Btu/he
77% Etd 79% Etd
> 2,500,000 Btu/hb 77% Etd 79% Etd
Oil firedf < 300,000 Btu/hg for applications outside
US
82% AFUE 82% AFUE DOE 10 CFR 430 Appendix N
≥ 300,000 Btu/h and
≤ 2,500,000 Btu/he
81% Etd 81% Etd DOE 10 CFR 431.86
> 2,500,000 Btu/hb 81% Etd 81% Etd
For SI: 1 British thermal unit per hour = 0.2931 W.
  1. Chapter 6 contains a complete specification of the referenced standards, which include test procedures, including the reference year version of the test procedure.
  2. These requirements apply to boilers with rated input of 8,000,000 Btu/h or less that are not packaged boilers and to all packaged boilers. Minimum efficiency requirements for boilers cover all capacities of packaged boilers.
  3. Ec = Combustion efficiency (100 percent less flue losses). 
  4. Et = Thermal efficiency. 
  5. Maximum capacity—minimum and maximum ratings as provided for and allowed by the unit's controls.
  6. Includes oil-fired (residual).
  7. Boilers shall not be equipped with a constant burning pilot light.
  8. A boiler not equipped with a tankless domestic water-heating coil shall be equipped with an automatic means for adjusting the temperature of the water such that an incremental change in inferred heat load produces a corresponding incremental change in the temperature of the water supplied.
  9. This table is a replica of ASHRAE 90.1 Table 6.8.1-6 Gas- and Oil-Fired Boilers—Minimum Efficiency Requirements.
TABLE C403.3.2(7)
PERFORMANCE REQUIREMENTS FOR HEAT REJECTION EQUIPMENT—MINIMUM EFFICIENCY REQUIREMENTSi
EQUIPMENT TYPE TOTAL SYSTEM HEAT-REJECTION CAPACITY AT RATED CONDITIONS SUBCATEGORY OR RATING CONDITIONh PERFORMANCE REQUIREDb, c, d, f, g TEST PROCEDUREa, e
Propeller or axial fan open-circuit cooling towers All 95°F entering water
85°F leaving water
75°F entering wb
≥ 40.2 gpm/hp CTI ATC-105 and CTI STD-201 RS
Centrifugal fan open-circuit cooling towers All 95°F entering water
85°F leaving water
75°F entering wb
≥ 20.0 gpm/hp CTI ATC-105 and CTI STD-201 RS
Propeller or axial fan closed-circuit cooling towers All 102°F entering water
90°F leaving water
75°F entering wb
≥ 16.1 gpm/hp CTI ATC-105S and CTI STD-201 RS
Centrifugal fan closed-circuit cooling towers All 102°F entering water
90°F leaving water
75°F entering wb
≥ 7.0 gpm/hp CTI ATC-105S and CTI STD-201 RS
Propeller or axial fan dry coolers (air-cooled fluid coolers) All 115°F entering water
105°F leaving water
95°F entering wb
≥ 4.5 gpm/hp CTI ATC-105DS
Propeller or axial fan evaporative condensers All R-448A test fluid
165°F entering gas temperature
105°F condensing temperature
75°F entering wb
≥ 160,000 Btu/h × hp CTI ATC-106
Propeller or axial fan evaporative condensers All Ammonia test fluid
140°F entering gas temperature
96.3°F condensing temperature
75°F entering wb
≥ 134,000 Btu/h × hp CTI ATC-106
Centrifugal fan evaporative condensers All R-448A test fluid
165°F entering gas temperature
105°F condensing temperature
75°F entering wb
≥ 137,000 Btu/h × hp CTI ATC-106
Centrifugal fan evaporative condensers All Ammonia test fluid
140°F entering gas temperature
96.3°F condensing temperature
75°F entering wb
≥ 110,000 Btu/h × hp CTI ATC-106
Air-cooled condensers All 125°F condensing temperature
190°F entering gas temperature
15°F subcooling
95°F entering db
≥ 176,000 Btu/h × hp AHRI 460
For SI: °C = [(°F) — 32]/1.8, L/s × kW = (gpm/hp)/(11.83), COP = (Btu/h × hp)/(2550.7), db = dry bulb temperature, wb = wet bulb temperature.
  1. Chapter 6 contains a complete specification of the referenced standards, which include test procedures, including the reference year version of the test procedure.
  2. For purposes of this table, open-circuit cooling tower performance is defined as the water-flow rating of the tower at the thermal rating condition listed in the table divided by the fan motor nameplate power.
  3. For purposes of this table, closed-circuit cooling tower performance is defined as the process water-flow rating of the tower at the thermal rating condition listed in the table divided by the sum of the fan motor nameplate power and the integral spray pump motor nameplate power.
  4. For purposes of this table, dry-cooler performance is defined as the process water-flow rating of the unit at the thermal rating condition listed in the table divided by the total fan motor nameplate power of the unit, and air-cooled condenser performance is defined as the heat rejected from the refrigerant divided by the total fan motor nameplate power of the unit.
  5. The efficiencies and test procedures for both open- and closed-circuit cooling towers are not applicable to hybrid cooling towers that contain a combination of separate wet and dry heat exchange sections. The certification requirements do not apply to field-erected cooling towers.
  6. All cooling towers shall comply with the minimum efficiency listed in the table for that specific type of tower with the capacity effect of any project-specific accessories and/or options included in the capacity of the cooling tower.
  7. For purposes of this table, evaporative condenser performance is defined as the heat rejected at the specified rating condition in the table, divided by the sum of the fan motor nameplate power and the integral spray pump nameplate power.
  8. Requirements for evaporative condensers are listed with ammonia (R-717) and R-448A as test fluids in the table. Evaporative condensers intended for use with halocarbon refrigerants other than R-448A must meet the minimum efficiency requirements listed with R-448A as the test fluid. For ammonia, the condensing temperature is defined as the saturation temperature corresponding to the refrigerant pressure at the condenser entrance. For R-448A, which is a zeotropic refrigerant, the condensing temperature is defined as the arithmetic average of the dew point and the bubble point temperatures corresponding to the refrigerant pressure at the condenser entrance.
  9. This table is a replica of ASHRAE 90.1 Table 6.8.1-7 Performance Requirements for Heat Rejection Equipment—Minimum Efficiency Requirements.
TABLE C403.3.2(8)
ELECTRICALLY OPERATED VARIABLE-REFRIGERANT-FLOW AIR CONDITIONERS—MINIMUM EFFICIENCY REQUIREMENTSb
EQUIPMENT TYPE SIZE CATEGORY HEATING SECTION TYPE SUBCATEGORY OR RATING CONDITION MINIMUM EFFICIENCY TEST PROCEDUREa
VRFair conditioners, air cooled < 65,000 Btu/h All VRF multisplit
system
13.0 SEER AHRI 1230
≥ 65,000 Btu/h and
< 135,000 Btu/h
Electric resistance
(or none)
VRF multisplit
system
11.2 EER
13.1 IEER
15.5 IEER
≥ 135,000 Btu/h and
< 240,000 Btu/h
Electric resistance
(or none)
VRF multisplit
system
11.0 EER
12.9 IEER
14.9 IEER
≥ 240,000 Btu/h Electric resistance
(or none)
VRF multisplit
system
10.0 EER
11.6 IEER
13.9 IEER
For SI: 1 British thermal unit per hour = 0.2931 W.
  1. Chapter 6 contains a complete specification of the referenced standards, which include test procedures, including the reference year version of the test procedure.
  2. This table is a replica of ASHRAE 90.1 Table 6.8.1-8 Electrically Operated Variable-Refrigerant-Flow Air Conditioners—Minimum Efficiency Requirements.
TABLE C403.3.2(9)
ELECTRICALLY OPERATED VARIABLE-REFRIGERANT-FLOW AND APPLIED HEAT PUMPS—MINIMUM EFFICIENCY REQUIREMENTSb
EQUIPMENT TYPE SIZE CATEGORY HEATING SECTION TYPE SUBCATEGORY OR RATING CONDITION MINIMUM EFFICIENCY TEST PROCEDUREa
VRFair cooled (cooling mode) < 65,000 Btu/h All VRF multisplit system 13.0 SEER AHRI 1230
≥ 65,000 Btu/h and
< 135,000 Btu/h
Electric resistance
(or none)
11.0 EER
12.9 IEER
14.6 IEER
VRF multisplit system
with heat recovery
10.8 EER
12.7 IEER
14.4 IEER
≥ 135,000 Btu/h and
< 240,000 Btu/h
VRF multisplit system 10.6 EER
12.3 IEER
13.9 IEER
VRF multisplit system
with heat recovery
10.4 EER
12.1 IEER
13.7 IEER
≥ 240,000 Btu/h VRF multisplit system 9.5 EER
11.0 IEER
12.7 IEER
VRF multisplit system
with heat recovery
9.3 EER
10.8 IEER
12.5 IEER
VRF water source (cooling mode) < 65,000 Btu/h All VRF multisplit systems
86°F entering water
12.0 EER
16.0 IEER
AHRI 1230
VRF multisplit systems
with heat recovery
86°F entering water
11.8 EER
15.8 IEER
≥ 65,000 Btu/h and
< 135,000 Btu/h
VRF multisplit system
86°F entering water
12.0 EER
16.0 IEER
VRF multisplit system
with heat recovery
86°F entering water
11.8 EER
15.8 IEER
≥ 135,000 Btu/h and
< 240,000 Btu/h
VRF multisplit system
86°F entering water
10.0 EER
14.0 IEER
VRF multisplit system
with heat recovery
86°F entering water
9.8 EER
13.8 IEER
≥ 240,000 Btu/h VRF multisplit system
86°F entering water
10.0 EER
12.0 IEER
VRF multisplit system
with heat recovery
86°F entering water
9.8 EER
11.8 IEER
VRFgroundwater source (cooling mode) < 135,000 Btu/h All VRF multisplit system
59°F entering water
16.2 EER AHRI 1230
VRF multisplit system
with heat recovery
59°F entering water
16.0 EER
≥ 135,000 Btu/h VRF multisplit system
59°F entering water
13.8 EER
VRF multisplit system
with heat recovery
59°F entering water
13.6 EER
VRFground source (cooling mode) < 135,000 Btu/h All VRF multisplit system
77°F entering water
13.4 EER AHRI 1230
VRF multisplit system
with heat recovery
77°F entering water
13.2 EER
≥ 135,000 Btu/h VRF multisplit system
77°F entering water
11.0 EER
VRF multisplit system
with heat recovery
77°F entering water
10.8 EER
VRFair cooled (heating mode) < 65,000 Btu/h
(cooling capacity)
VRF multisplit system 7.7 HSPF AHRI 1230
≥ 65,000 Btu/h and
< 135,000 Btu/h
(cooling capacity)
VRF multisplit system
47°F db/43°F wb
outdoor air
3.3 COPH
17°F db/15°F wb
outdoor air
2.25 COPH
≥ 135,000 Btu/h
(cooling capacity)
VRF multisplit system
47°F db/43°F wb
outdoor air
3.2 COPH
17°F db/15°F wb
outdoor air
2.05 COPH
VRFwater source (heating mode) < 65,000 Btu/h
(cooling capacity)
VRF multisplit system
68°F entering water
4.2 COPH
4.3 COPH
AHRI 1230
≥ 65,000 Btu/h and
< 135,000 Btu/h
(cooling capacity)
VRF multisplit system
68°F entering water
4.2 COPH
4.3 COPH
≥ 135,000 Btu/h and
< 240,000 Btu/h
(cooling capacity)
VRF multisplit system
68°F entering water
3.9 COPH
4.0 COPH
≥ 240,000 Btu/h
(cooling capacity)
VRF multisplit system
68°F entering water
3.9 COPH
VRF groundwater source (heating mode) < 135,000 Btu/h
(cooling capacity)
VRF multisplit system
50°F entering water
3.6 COPH AHRI 1230
≥ 135,000 Btu/h
(cooling capacity)
VRF multisplit system
50°F entering water
3.3 COPH
VRF ground source (heating mode) < 135,000 Btu/h
(cooling capacity)
VRF multisplit system
32°F entering water
3.1 COPH AHRI 1230
≥ 135,000 Btu/h
(cooling capacity)
VRF multisplit system
32°F entering water
2.8 COPH
For SI: °C = [(°F) — 32]/1.8, 1 British thermal unit per hour = 0.2931 W, db = dry bulb temperature,  wb = wet bulb temperature.
  1. Chapter 6 contains a complete specification of the referenced standards, which include test procedures, including the reference year version of the test procedure.
  2. This table is a replica of ASHRAE 90.1 Table 6.8.1-9 Electrically Operated Variable-Refrigerant-Flow and Applied Heat Pumps—Minimum Efficiency Requirements.
TABLE C403.3.2(10)
FLOOR-MOUNTED AIR CONDITIONERS AND CONDENSING UNITS SERVING COMPUTER ROOMS—MINIMUM EFFICIENCY REQUIREMENTSb
EQUIPMENT TYPE STANDARD MODEL NET SENSIBLE COOLING CAPACITY MINIMUM NET SENSIBLE COP RATING CONDITIONS RETURN AIR
(dry bulb/dew point)
TEST PROCEDUREa
Air cooled Downflow < 80,000 Btu/h 2.70 85°F/52°F (Class 2) AHRI 1360
≥ 80,000 Btu/h and
< 295,000 Btu/h
2.58
≥ 295,000 Btu/h 2.36
Upflow—ducted < 80,000 Btu/h 2.67
≥ 80,000 Btu/h and
< 295,000 Btu/h
2.55
≥ 295,000 Btu/h 2.33
Upflow—nonducted < 65,000 Btu/h 2.16 75°F/52°F (Class 1)
≥ 65,000 Btu/h and
< 240,000 Btu/h
2.04
≥ 240,000 Btu/h 1.89
Horizontal < 65,000 Btu/h 2.65 95°F/52°F (Class 3)
≥ 65,000 Btu/h and
< 240,000 Btu/h
2.55
≥ 240,000 Btu/h 2.47
Air cooled with fluid economizer Downflow < 80,000 Btu/h 2.70 85°F/52°F (Class 1) AHRI 1360
≥ 80,000 Btu/h and
< 295,000 Btu/h
2.58
≥ 295,000 Btu/h 2.36
Upflow—ducted < 80,000 Btu/h 2.67
≥ 80,000 Btu/h and
< 295,000 Btu/h
2.55
≥ 295,000 Btu/h 2.33
Upflow—nonducted < 65,000 Btu/h 2.09 75°F/52°F (Class 1)
≥ 65,000 Btu/h and
< 240,000 Btu/h
1.99
≥ 240,000 Btu/h 1.81
Horizontal < 65,000 Btu/h 2.65 95°F/52°F (Class 3)
≥ 65,000 Btu/h and
< 240,000 Btu/h
2.55
≥ 240,000 Btu/h 2.47
Water cooled Downflow < 80,000 Btu/h 2.82 85°F/52°F (Class 1) AHRI 1360
≥ 80,000 Btu/h and
< 295,000 Btu/h
2.73
≥ 295,000 Btu/h 2.67
Upflow—ducted < 80,000 Btu/h 2.79
≥ 80,000 Btu/h and
< 295,000 Btu/h
2.70
≥ 295,000 Btu/h 2.64
Upflow—nonducted < 65,000 Btu/h 2.43 75°F/52°F (Class 1)
≥ 65,000 Btu/h and
< 240,000 Btu/h
2.32
≥ 240,000 Btu/h 2.20
Horizontal < 65,000 Btu/h 2.79 95°F/52°F (Class 3)
≥ 65,000 Btu/h and
< 240,000 Btu/h
2.68
≥ 240,000 Btu/h 2.60
Water cooled with fluid economizer Downflow < 80,000 Btu/h 2.77 85°F/52°F (Class 1) AHRI 1360
≥ 80,000 Btu/h and
< 295,000 Btu/h
2.68
≥ 295,000 Btu/h 2.61
Upflow—ducted < 80,000 Btu/h 2.74
≥ 80,000 Btu/h and
< 295,000 Btu/h
2.65
≥ 295,000 Btu/h 2.58
Upflow—nonducted < 65,000 Btu/h 2.35 75°F/52°F (Class 1)
≥ 65,000 Btu/h and
< 240,000 Btu/h
2.24
≥ 240,000 Btu/h 2.12
Horizontal < 65,000 Btu/h 2.71 95°F/52°F (Class 3)
≥ 65,000 Btu/h and
< 240,000 Btu/h
2.60
≥ 240,000 Btu/h 2.54
Glycol cooled Downflow < 80,000 Btu/h 2.56 85°F/52°F (Class 1) AHRI 1360
≥ 80,000 Btu/h and
< 295,000 Btu/h
2.24
≥ 295,000 Btu/h 2.21
Upflow—ducted < 80,000 Btu/h 2.53
≥ 80,000 Btu/h and
< 295,000 Btu/h
2.21
≥ 295,000 Btu/h 2.18
Upflow,
nonducted
< 65,000 Btu/h 2.08 75°F/52°F (Class 1)
≥ 65,000 Btu/h and
< 240,000 Btu/h
1.90
≥ 240,000 Btu/h 1.81
Horizontal < 65,000 Btu/h 2.48 95°F/52°F (Class 3)
≥ 65,000 Btu/h and
< 240,000 Btu/h
2.18
≥ 240,000 Btu/h 2.18
Glycol cooled with fluid economizer Downflow < 80,000 Btu/h 2.51 85°F/52°F (Class 1) AHRI 1360
≥ 80,000 Btu/h and
< 295,000 Btu/h
2.19
≥ 295,000 Btu/h 2.15
Upflow—ducted < 80,000 Btu/h 2.48
≥ 80,000 Btu/h and
< 295,000 Btu/h
2.16
≥ 295,000 Btu/h 2.12
Upflow—nonducted < 65,000 Btu/h 2.00 75°F/52°F (Class 1)
≥ 65,000 Btu/h and
< 240,000 Btu/h
1.82
≥ 240,000 Btu/h 1.73
Horizontal < 65,000 Btu/h 2.44 95°F/52°F (Class 3)
≥ 65,000 Btu/h and
< 240,000 Btu/h
2.10
≥ 240,000 Btu/h 2.10
For SI: 1 British thermal unit per hour = 0.2931 W, °C = [(°F) — 32]/1.8, COP = (Btu/h × hp)/(2,550.7).
  1. Chapter 6 contains a complete specification of the referenced standards, which include test procedures, including the reference year version of the test procedure.
  2. This table is a replica of ASHRAE 90.1 Table 6.8.1-10 Floor-Mounted Air Conditioners and Condensing Units Serving Computer Rooms—Minimum Efficiency Requirements.
TABLE C403.3.2(11)
VAPOR-COMPRESSION-BASED INDOOR POOL DEHUMIDIFIERS—MINIMUM EFFICIENCY REQUIREMENTSb
EQUIPMENT TYPE SUBCATEGORY OR RATING CONDITION MINIMUM EFFICIENCY TEST PROCEDUREa
Single package indoor (with or without economizer) Rating Conditions: A or C 3.5 MRE AHRI 910
Single package indoor water cooled (with or without economizer) Rating Conditions: A, B or C 3.5 MRE
Single package indoor air cooled (with or without economizer) Rating Conditions: A, B or C 3.5 MRE
Split systemindoor air cooled (with or without economizer) Rating Conditions: A, B or C 3.5 MRE
  1. Chapter 6 contains a complete specification of the referenced standards, which include test procedures, including the reference year version of the test procedure.
  2. This table is a replica of ASHRAE 90.1 Table 6.8.1-12 Vapor-Compression-Based Indoor Pool Dehumidifiers—Minimum Efficiency Requirements.
TABLE C403.3.2(12)
ELECTRICALLY OPERATED DX-DOAS UNITS, SINGLE-PACKAGE AND REMOTE CONDENSER, WITHOUT ENERGY RECOVERY—MINIMUM EFFICIENCY REQUIREMENTSb
EQUIPMENT TYPE SUBCATEGORY OR RATING CONDITION MINIMUM EFFICIENCY TEST PROCEDUREa
Air cooled (dehumidification mode) — 4.0 ISMRE AHRI 920
Air-source heat pumps (dehumidification mode) — 4.0 ISMRE AHRI 920
Water cooled (dehumidification mode) Cooling tower condenser water 4.9 ISMRE AHRI 920
Chilled water 6.0 ISMRE
Air-source heat pump (heating mode) — 2.7 ISCOP AHRI 920
Water-source heat pump (dehumidification mode) Ground source, closed loop 4.8 ISMRE AHRI 920
Ground-water source 5.0 ISMRE
Water source 4.0 ISMRE
Water-source heat pump (heating mode) Ground source, closed loop 2.0 ISCOP AHRI 920
Ground-water source 3.2 ISCOP
Water source 3.5 ISCOP
  1. Chapter 6 contains a complete specification of the referenced standards, which include test procedures, including the reference year version of the test procedure.
  2. This table is a replica of ASHRAE 90.1 Table 6.8.1-13 Electrically Operated DX-DOAS Units, Single-Package and Remote Condenser, without Energy Recovery—Minimum Efficiency Requirements.
TABLE C403.3.2(13)
ELECTRICALLY OPERATED DX-DOAS UNITS, SINGLE-PACKAGE AND REMOTE CONDENSER,
WITH ENERGY RECOVERY—MINIMUM EFFICIENCY REQUIREMENTSb
EQUIPMENT TYPE SUBCATEGORY OR RATING CONDITION MINIMUM EFFICIENCY TEST PROCEDUREa
Air cooled (dehumidification mode) — 5.2 ISMRE AHRI 920
Air-source heat pumps (dehumidification mode) — 5.2 ISMRE AHRI 920
Water cooled (dehumidification mode) Cooling tower condenser water 5.3 ISMRE AHRI 920
Chilled water 6.6 ISMRE
Air-source heat pump (heating mode) — 3.3 ISCOP AHRI 920
Water-source heat pump (dehumidification mode) Ground source, closed loop 5.2 ISMRE AHRI 920
Ground-water source 5.8 ISMRE
Water source 4.8 ISMRE
Water-source heat pump (heating mode) Ground source, closed loop 3.8 ISCOP AHRI 920
Ground-water source 4.0 ISCOP
Water source 4.8 ISCOP
  1. Chapter 6 contains a complete specification of the referenced standards, which include test procedures, including the reference year version of the test procedure.
  2. This table is a replica of ASHRAE 90.1 Table 6.8.1-14 Electrically Operated DX-DOAS Units, Single-Package and Remote Condenser, with Energy Recovery—Minimum Efficiency Requirements.
TABLE C403.3.2(14)
ELECTRICALLY OPERATED WATER-SOURCE HEAT PUMPS—MINIMUM EFFICIENCY REQUIREMENTSc
EQUIPMENT TYPE SIZE CATEGORYb HEATING SECTION TYPE SUBCATEGORY OR RATING CONDITION MINIMUM EFFICIENCY TEST PROCEDUREa
Water-to-air, water loop (cooling mode) < 17,000 Btu/h All 86°F entering water 12.2 EER ISO 13256-1
≥ 17,000 Btu/h and
< 65,000 Btu/h
13.0 EER
≥ 65,000 Btu/h and
< 135,000 Btu/h
13.0 EER
Water-to-air, ground water (cooling mode) < 135,000 Btu/h All 59°F entering water 18.0 EER ISO 13256-1
Brine-to-air, ground loop (cooling mode) < 135,000 Btu/h All 77°F entering water 14.1 EER ISO 13256-1
Water-to-water, water loop (cooling mode) < 135,000 Btu/h All 86°F entering water 10.6 EER ISO 13256-2
Water-to-water, ground water (cooling mode) < 135,000 Btu/h All 59°F entering water 16.3 EER ISO 13256-2
Brine-to-water, ground loop (cooling mode) < 135,000 Btu/h All 77°F entering water 12.1 EER ISO 13256-2
Water-to-water, water loop (heating mode) < 135,000 Btu/h
(cooling capacity)
— 68°F entering water 4.3 COPH ISO 13256-1
Water-to-air, ground water (heating mode) < 135,000 Btu/h
(cooling capacity)
— 50°F entering water 3.7 COPH ISO 13256-1
Brine-to-air, ground loop (heating mode) < 135,000 Btu/h
(cooling capacity)
— 32°F entering water 3.2 COPH ISO 13256-1
Water-to-water, water loop (heating mode) < 135,000 Btu/h
(cooling capacity)
— 68°F entering water 3.7 COPH ISO 13256-1
Water-to-water, ground water (heating mode) < 135,000 Btu/h
(cooling capacity)
— 50°F entering water 3.1 COPH ISO 13256-2
Brine-to-water, ground loop (heating mode) < 135,000 Btu/h
(cooling capacity)
— 32°F entering water 2.5 COPH ISO 13256-2
For SI: 1 British thermal unit per hour = 0.2931 W, °C = [(°F) — 32]/1.8.
  1. Chapter 6 contains a complete specification of the referenced standards, which include test procedures, including the reference year version of the test procedure.
  2. Single-phase, US air-cooled heat pumps less than 19 kW are regulated as consumer products by DOE 10 CFR 430. SCOPC, SCOP2C, SCOPH and SCOP2H values for single-phase products are set by the USDOE.
  3. This table is a replica of ASHRAE 90.1 Table 6.8.1-15 Electrically Operated Water-Source Heat Pumps—Minimum Efficiency Requirements.
TABLE C403.3.2(15)
HEAT-PUMP AND HEAT RECOVERY CHILLER PACKAGES—MINIMUM EFFICIENCY REQUIREMENTSg
HEATING OPERATION
EQUIPMENT TYPE SIZE CATEGORY, tonR COOLING-ONLY OPERATION COOLING EFFICIENCYc
AIR-SOURCE EER (FL/IPLV), Btu/W × h
WATER-SOURCE POWER INPUT PER CAPACITY (FL/IPLV), kW/tonR
HEATING
SOURCE CONDITIONS (entering/ leaving water) OR OAT (db/wb), °F
HEAT-PUMP HEATING FULL-LOAD EFFICIENCY
(COPH)b, W/W
HEAT RECOVERY CHILLER FULL-LOAD EFFICIENCY (COPHR)c,d, W/W
SIMULTANEOUS COOLING AND HEATING FULL-LOAD
EFFICIENCY (COPSHC)c, W/W
Test Procedurea
Leaving Heating Water Temperature Leaving Heating Water Temperature
Low Medium High Boost Low Medium High Boost
Path A Path B 105°F 120°F 140°F 140°F 105°F 120°F 140°F 140°F
Air source All sizes ≥ 9.595 FL
≥ 13.02 IPLV.IP
≥ 9.215 FL
≥ 15.01 IPLV.IP
47 db
43 wbe
≥ 3.290 ≥ 2.770 ≥ 2.310 NA NA NA NA NA AHRI 550/590
≥ 9.595 FL
≥ 13.30 IPLV.IP
≥ 9.215 FL
≥ 15.30 IPLV.IP
17 db
15 wbe
≥ 2.230 ≥ 1.950 ≥ 1.630 NA NA NA NA NA
Water-source electrically operated positive
displacement
< 75 ≤ 0.7885 FL
≤ 0.6316 IPLV.IP
≤ 0.7875 FL
≤ 0.5145 IPLV.IP
54/44f ≥ 4.640 ≥ 3.680 ≥ 2.680 NA ≥ 8.330 ≥ 6.410 ≥ 4.420 NA AHRI 550/590
75/65f NA NA NA ≥ 3.550 NA NA NA 6.150
≥ 75 and
< 150
≤ 0.7579 FL
≤ 0.5895 IPLV.IP
≤ 0.7140 FL
≤ 0.4620 IPLV.IP
54/44f ≥ 4.640 ≥ 3.680 ≥ 2.680 NA ≥ 8.330 ≥ 6.410 ≥ 4.420 NA
75/65f NA NA NA ≥ 3.550 NA NA NA 6.150
≥ 150 and
< 300
≤ 0.6947 FL
≤ 0.5684 IPLV.IP
≤ 0.7140 FL
≤ 0.4620 IPLV.IP
54/44f ≥ 4.640 ≥ 3.680 ≥ 2.680 NA ≥ 8.330 ≥ 6.410 ≥ 4.420 NA
75/65f NA NA NA ≥ 3.550 NA NA NA 6.150
≥ 300 and
< 600
≤ 0.6421 FL
≤ 0.5474 IPLV.IP
≤ 0.6563 FL
≤ 0.4305 IPLV.IP
54/44f ≥ 4.930 ≥ 3.960 ≥ 2.970 NA ≥ 8.900 ≥ 6.980 ≥ 5.000 NA
75/65f NA NA NA ≥ 3.900 NA NA NA 6.850
≥ 600 ≤ 0.5895 FL
≤ 0.5263 IPLV.IP
≤ 0.6143 FL
≤ 0.3990 IPLV.IP
54/44f ≥ 4.930 ≥ 3.960 ≥ 2.970 NA ≥ 8.900 ≥ 6.980 ≥ 5.000 NA
75/65f NA NA NA ≥ 3.900 NA NA NA 6.850
Water-source electrically operated centrifugal < 75 ≤ 0.6421 FL
≤ 0.5789 IPLV.IP
≤ 0.7316 FL
≤ 0.4632 IPLV.IP
54/44f ≥ 4.640 ≥ 3.680 ≥ 2.680 NA ≥ 8.330 ≥ 6.410 ≥ 4.420 NA AHRI 550/590
75/65f NA NA NA ≥ 3.550 NA NA NA ≥ 6.150
≥ 75 and
< 150
≤ 0.5895 FL
≤ 0.5474 IPLV.IP
≤ 0.6684 FL
≤ 0.4211 IPLV.IP
54/44f ≥ 4.640 ≥ 3.680 ≥ 2.680 NA ≥ 8.330 ≥ 6.410 ≥ 4.420 NA
75/65f NA NA NA ≥ 3.550 NA NA NA ≥ 6.150
≥ 150 and
< 300
≤ 0.5895 FL
≤ 0.5263 IPLV.IP
≤ 0.6263 FL
≤ 0.4105 IPLV.IP
54/44f ≥ 4.640 ≥ 3.680 ≥ 2.680 NA ≥ 8.330 ≥ 6.410 ≥ 4.420 NA
75/65f NA NA NA ≥ 3.550 NA NA NA ≥ 6.150
≥ 300 and
< 600
≤ 0.5895 FL
≤ 0.5263 IPLV.IP
≤ 0.6158 FL
≤ 0.4000 IPLV.IP
54/44f ≥ 4.930 ≥ 3.960 ≥ 2.970 NA ≥ 8.900 ≥ 6.980 ≥ 5.000 NA
75/65f NA NA NA ≥ 3.900 NA NA NA ≥ 6.850
≥ 600 ≤ 0.5895 FL
≤ 0.5263 IPLV.IP
≤ 0.6158 FL
≤ 0.4000 IPLV.IP
54/44f ≥ 4.930 ≥ 3.960 ≥ 2.970 NA ≥ 8.900 ≥ 6.980 ≥ 5.000 NA
75/65f NA NA NA ≥ 3.900 NA NA NA ≥ 6.850
For SI: °C = [(°F) — 32]/1.8.
  1. Chapter 6 contains a complete specification of the referenced standards, which include test procedures, including the reference year version of the test procedure.
  2. Cooling-only rating conditions are standard rating conditions defined in AHRI 550/590, Table 1.
  3. Heating full-load rating conditions are at rating conditions defined in AHRI 550/590, Table 1.
  4. For water-cooled heat recovery chillers that have capabilities for heat rejection to a heat recovery condenser and a tower condenser, the COPHR applies to operation at full load with 100 percent heat recovery (no tower rejection). Units that only have capabilities for partial heat recovery shall meet the requirements of Table C403.3.2(3).
  5. Outdoor air entering dry-bulb (db) temperature and wet-bulb (wb) temperature.
  6. Source-water entering and leaving water temperature.
  7. This table is a replica of ASHRAE 90.1 Table 6.8.1-16 Heat-Pump and Heat Recovery Chiller Packages—Minimum Efficiency Requirements.
TABLE C403.3.2(16)
CEILING-MOUNTED COMPUTER-ROOM AIR CONDITIONERS—MINIMUM EFFICIENCY REQUIREMENTSb
EQUIPMENT TYPE STANDARD MODEL NET SENSIBLE COOLING CAPACITY MINIMUM NET SENSIBLE COP RATING CONDITIONS RETURN AIR
(dry bulb/dew point)
TEST PROCEDUREa
Air cooled with free air discharge condenser Ducted < 29,000 Btu/h 2.05 75°F/52°F (Class 1) AHRI 1360
≥ 29,000 Btu/h and
< 65,000 Btu/h
2.02
≥ 65,000 Btu/h 1.92
Nonducted < 29,000 Btu/h 2.08
≥ 29,000 Btu/h and
< 65,000 Btu/h
2.05
≥ 65,000 Btu/h 1.94
Air cooled with free air discharge condenser with fluid economizer Ducted < 29,000 Btu/h 2.01 75°F/52°F (Class 1) AHRI 1360
≥ 29,000 Btu/h and
< 65,000 Btu/h
1.97
≥ 65,000 Btu/h 1.87
Nonducted < 29,000 Btu/h 2.04
≥ 29,000 Btu/h and
< 65,000 Btu/h
2.00
≥ 65,000 Btu/h 1.89
Air cooled with ducted condenser Ducted < 29,000 Btu/h 1.86 75°F/52°F (Class 1) AHRI 1360
≥ 29,000 Btu/h and
< 65,000 Btu/h
1.83
≥ 65,000 Btu/h 1.73
Nonducted < 29,000 Btu/h 1.89
≥ 29,000 Btu/h and
< 65,000 Btu/h
1.86
≥ 65,000 Btu/h 1.75
Air cooled with fluid economizer and ducted condenser Ducted < 29,000 Btu/h 1.82 75°F/52°F (Class 1) AHRI 1360
≥ 29,000 Btu/h and
< 65,000 Btu/h
1.78
≥ 65,000 Btu/h 1.68
Nonducted < 29,000 Btu/h 1.85
≥ 29,000 Btu/h and
< 65,000 Btu/h
1.81
≥ 65,000 Btu/h 1.70
Water cooled Ducted < 29,000 Btu/h 2.38 75°F/52°F (Class 1) AHRI 1360
≥ 29,000 Btu/h and
< 65,000 Btu/h
2.28
≥ 65,000 Btu/h 2.18
Nonducted < 29,000 Btu/h 2.41
≥ 29,000 Btu/h and
< 65,000 Btu/h
2.31
≥ 65,000 Btu/h 2.20
Water cooled with fluid economizer Ducted < 29,000 Btu/h 2.33 75°F/52°F (Class 1) AHRI 1360
≥ 29,000 Btu/h and
< 65,000 Btu/h
2.23
≥ 65,000 Btu/h 2.13
Nonducted < 29,000 Btu/h 2.36
≥ 29,000 Btu/h and
< 65,000 Btu/h
2.26
≥ 65,000 Btu/h 2.16
Glycol cooled Ducted < 29,000 Btu/h 1.97 75°F/52°F (Class 1) AHRI 1360
≥ 29,000 Btu/h and
< 65,000 Btu/h
1.93
≥ 65,000 Btu/h 1.78
Nonducted < 29,000 Btu/h 2.00
≥ 29,000 Btu/h and
< 65,000 Btu/h
1.98
≥ 65,000 Btu/h 1.81
Glycol cooled with fluid economizer Ducted < 29,000 Btu/h 1.92 75°F/52°F (Class 1) AHRI 1360
≥ 29,000 Btu/h and
< 65,000 Btu/h
1.88
≥ 65,000 Btu/h 1.73
Nonducted < 29,000 Btu/h 1.95
≥ 29,000 Btu/h and
< 65,000 Btu/h
1.93
≥ 65,000 Btu/h 1.76
For SI: 1 British thermal unit per hour = 0.2931 W, °C = [(°F) — 32]/1.8, COP = (Btu/h × hp)/(2,550.7).
  1. Chapter 6 contains a complete specification of the referenced standards, which include test procedures, including the reference year version of the test procedure.
  2. This is a replica of ASHRAE 90.1 Table 6.8.1-17 Ceiling-Mounted Computer-Room Air Conditioners—Minimum Efficiency Requirements.
SEE MORE

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