Table C410.2
Minimum Efficiency Requirements: Commercial Refrigerators and Freezers and Refrigeration
Equipment Category | Condensing Unit Configuration | Equipment Family | Rating Temp. °F | Operating Temp. °F | Equipment Classificationc | Maximum Daily Energy Consumption kWh/dayd,e | Test Standard |
Remote condensing commercial refrigerators and commercial freezers | Remote (RC) | Vertical open (VOP) | 38 (M) | [GREATER THAN EQUAL TO]32 | VOP.RC.M | 0.64 × TDA + 4.07 | AHRI 1200 |
0 (L) | [LESS THAN]32 | VOP.RC.L | 2.20 × TDA + 6.85 | ||||
Semivertical open (SVO) | 38 (M) | [GREATER THAN EQUAL TO]32 | SVO.RC.M | 0.66 × TDA + 3.18 | |||
0 (L) | [LESS THAN]32 | SVO.RC.L | 2.20 × TDA + 6.85 | ||||
Horizontal open (HZO) | 38 (M) | [GREATER THAN EQUAL TO]32 | HZO.RC.M | 0.35 × TDA + 2.88 | |||
0 (L) | [LESS THAN]32 | HZO.RC.L | 0.55 × TDA + 6.88 | ||||
Vertical closed transparent (VCT) | 38 (M) | [GREATER THAN EQUAL TO]32 | VCT.RC.M | 0.15 × TDA + 1.95 | |||
0 (L) | [LESS THAN]32 | VCT.RC.L | 0.49 × TDA + 2.61 | ||||
Horizontal closed transparent (HCT) | 38 (M) | [GREATER THAN EQUAL TO]32 | HCT.RC.M | 0.16 × TDA + 0.13 | |||
0 (L) | [LESS THAN]32 | HCT.RC.L | 0.34 × TDA + 0.26 | ||||
Vertical closed solid (VCS) | 38 (M) | [GREATER THAN EQUAL TO]32 | VCS.RC.M | 0.10 × V + 0.26 | |||
0 (L) | [LESS THAN]32 | VCS.RC.L | 0.21 × V + 0.54 | ||||
Horizontal closed solid (HCS) | 38 (M) | [GREATER THAN EQUAL TO]32 | HCS.RC.M | 0.10 × V + 0.26 | |||
0 (L) | [LESS THAN]32 | HCS.RC.L | 0.21 × V + 0.54 | ||||
Service over counter (SOC) | 38 (M) | [GREATER THAN EQUAL TO]32 | SOC.RC.M | 0.44 × TDA + 0.11 | |||
0 (L) | [LESS THAN]32 | SOC.RC.L | 0.93 × TDA + 0.22 | ||||
Self-contained commercial refrigerators and commercial freezers with and without doors | Self-contained (SC) | Vertical open (VOP) | 38 (M) | [GREATER THAN EQUAL TO]32 | VOP.RC.M | 1.69 × TDA + 4.71 | AHRI 1200 |
0 (L) | [LESS THAN]32 | VOP.RC.L | 4.25 × TDA + 11.82 | ||||
Semivertical open (SVO) | 38 (M) | [GREATER THAN EQUAL TO]32 | SVO.RC.M | 1.70 × TDA + 4.59 | |||
0 (L) | [LESS THAN]32 | SVO.RC.L | 4.26 × TDA + 11.51 | ||||
Horizontal open (HZO) | 38 (M) | [GREATER THAN EQUAL TO]32 | HZO.RC.M | 0.72 × TDA + 5.55 | |||
0 (L) | [LESS THAN]32 | HZO.RC.L | 1.90 × TDA + 7.08 | ||||
Vertical closed transparent (VCT) | 38 (M) | [GREATER THAN EQUAL TO]32 | VCT.RC.M | 0.10 × V + 0.86 | |||
0 (L) | [LESS THAN]32 | VCT.RC.L | 0.29 × V + 2.95 | ||||
Vertical closed solid (VCS) | 38 (M) | [GREATER THAN EQUAL TO]32 | VCS.RC.M | 0.05 × V + 1.36 | |||
0 (L) | [LESS THAN]32 | VCS.RC.L | 0.22 × V + 1.38 | ||||
Self-contained commercial refrigerators and commercial freezers with and without doors | Self-contained (SC) | Horizontal closed transparent (HCT) | 38 (M) | [GREATER THAN EQUAL TO]32 | HCT.RC.M | 0.06 × V + 0.37 | AHRI 1200 |
0 (L) | [LESS THAN]32 | HCT.RC.L | 0.08 × V + 1.23 | ||||
Horizontal closed solid (HCS) | 38 (M) | [GREATER THAN EQUAL TO]32 | HCS.RC.M | 0.05 × V + 0.91 | |||
0 (L) | [LESS THAN]32 | HCS.RC.L | 0.06 × V + 1.12 | ||||
Service over counter (SOC) | 38 (M) | [GREATER THAN EQUAL TO]32 | SOC.RC.M | 0.52 × TDA + 1.00 | |||
0 (L) | [LESS THAN]32 | SOC.RC.L | 1.10 × TDA + 2.10 | ||||
Self-contained commercial refrigerators with transparent doors for pull-down temperature applications | Self-contained (SC) | Pull-down | 38(M) | [GREATER THAN EQUAL TO]32 | PD.SC.M | 0.11 × V + 0.81 | AHRI 1200 |
Commercial ice cream freezers | Remote (RC) | Vertical open (VOP) | -15 (I) | [LESS THAN EQUAL TO]-5b | VOP.RC.I | 2.79 × TDA + 8.70 | AHRI 1200 |
Semivertical open (SVO) | SVO.RC.I | 2.79 × TDA + 8.70 | |||||
Horizontal open (HZO) | HZO.RC.I | 0.70 × TDA + 8.74 | |||||
Vertical closed transparent (VCT) | VCT.RC.I | 0.58 × TDA + 3.05 | |||||
Horizontal closed transparent (HCT) | HCT.RC.I | 0.40 × TDA + 0.31 | |||||
Vertical closed solid (VCS) | VCS.RC.I | 0.25 × V + 0.63 | |||||
Horizontal closed solid (HCS) | HCS.RC.I | 0.25 × V + 0.63 | |||||
Service over counter (SOC) | SOC.RC.I | 1.09 × TDA + 0.26 | |||||
Self-contained (SC) | Vertical open (VOP) | -15 (I) | [LESS THAN EQUAL TO]-5b | VOP.SC.I | × TDA + | AHRI 1200 | |
Semivertical open (SVO) | SVO.SC.I | × TDA + | |||||
Horizontal open (HZO) | HZO.SC.I | × TDA + | |||||
Vertical closed transparent (VCT) | VCT.SC.I | × TDA + | |||||
Horizontal closed transparent (HCT) | HCT.SC.I | × TDA + | |||||
Vertical closed solid (VCS) | VCS.SC.I | × V + | |||||
Horizontal closed solid (HCS) | HCS.SC.I | × V + | |||||
Service over counter (SOC) | SOC.SC.I | × TDA + |
For SI: 1 square foot = 0.0929 m2, 1 cubic foot = 0.02832 m3, °C = (°F - 32)/1.8.
a The meaning of the letters in this column is indicated in the columns to the left.
b Ice cream freezer is defined in DOE 10 C.F.R. Part 431.62 as a commercial freezer that is designed to operate at or below -5°F and that the manufacturer designs, markets or intends for the storing, displaying, or dispensing of ice cream.
c Equipment class designations consist of a combination [(in sequential order separated by periods (AAA).(BB).(C))] of:
(AAA) An equipment family code where:
VOP = Vertical open
SVO = Semi-vertical open
HZO = Horizontal open
VCT = Vertical transparent doors
VCS = Vertical solid doors
HCT = Horizontal transparent doors
HCS = Horizontal solid doors
SOC = Service over counter
(BB) An operating mode code:
RC = Remote condensing
SC = Self-contained
(C) A rating temperature code:
M = Medium temperature (38°F)
L = Low temperature (0°F)
I = Ice cream temperature (15°F)
For example, "VOP.RC.M" refers to the "vertical-open, remote-condensing, medium-temperature" equipment class.
d V is the volume of the case (ft3) as measured in AHRI 1200, Appendix C.
e TDA is the total display area of the case (ft2) as measured in AHRI 1200, Appendix D.
EXCEPTION: | Automatic closers are not required for doors more than 45 inches (1143 mm) in width or more than 7 feet (2134 mm) in height. |
EXCEPTION: | Insulation is not required for glazed portions of doors or at structural members associated with the walls, ceiling or door frame. |
EXCEPTION: | Insulation is not required in the floor of a walk-in cooler that is mounted directly on a slab on grade. |
Table C410.3.1(1)
Walk-in Cooler and Freezer Display Doors Efficiency Requirements
Class Descriptor | Class | Maximum Energy Consumption (kWh/day)a |
Display door, medium temperature | DD, M | 0.04 × Add + 0.41 |
Display door, low temperature | DD, L | 0.15 × Add + 0.29 |
a Add is the surface area of the display door.
Table C410.3.1(2)
Walk-in Cooler and Freezer Nondisplay Doors Efficiency Requirements
Class Descriptor | Class | Maximum Energy Consumption (kWh/day)a |
Passage door, medium temperature | PD, M | 0.05 × And + 1.7 |
Passage door, low temperature | PD, L | 0.14 × And + 4.8 |
Freight door, medium temperature | FD, M | 0.04 × And + 1.9 |
Freight door, low temperature | FD, L | 0.12 × And + 5.6 |
a And is the surface area of the nondisplay door.
Table C410.3.1(3)
Walk-in Cooler and Freezer Refrigeration Systems Efficiency Requirements
Class Descriptor | Class | Minimum Annual Walk-in Energy Factor AWEF (Btu/hW-h) | Test Procedure |
Dedicated condensing, medium temperature, indoor system | DC.M.I | 5.61 | AHRI 1250 |
Dedicated condensing, medium temperature, outdoor system | DC.M.O | 7.60 | AHRI 1250 |
Dedicated condensing, low temperature, indoor system, net capacity (qnet) [LESS THAN] 6,500 Btu/h | DC.L.I, [LESS THAN]6,500 | 9.091 × 10-5 × qnet + 1.81 | AHRI 1250 |
Dedicated condensing, low temperature, indoor system, net capacity (qnet) [GREATER THAN EQUAL TO] 6,500 Btu/h | DC.L.I, [GREATER THAN EQUAL TO] 6,500 | 2.40 | AHRI 1250 |
Dedicated condensing, low temperature, outdoor system, net capacity (qnet) [LESS THAN] 6,500 Btu/h | DC.L.O, [LESS THAN]6,500 | 6.522 × 10-5 × qnet + 2.73 | AHRI 1250 |
Dedicated condensing, low temperature, outdoor system, net capacity (qnet) [GREATER THAN EQUAL TO] 6,500 Btu/h | DC.L.O, [GREATER THAN EQUAL TO] 6,500 | 3.15 | AHRI 1250 |
Unit cooler, medium | UC.M | 9.00 | AHRI 1250 |
Unit cooler, low temperature, net capacity (qnet) [LESS THAN]15,500 Btu/h | UC.L, [LESS THAN]15,500 | 1.575 × 10-5 × qnet + 3.91 | AHRI 1250 |
Unit cooler, low temperature, net capacity (qnet) [GREATER THAN EQUAL TO] 15,500 Btu/h | UC.L, [GREATER THAN EQUAL TO] 15,500 | 4.15 | AHRI 1250 |
EXCEPTION: | Systems where the working fluid in the refrigeration cycle goes through both subcritical and supercritical states (transcritical) or that use ammonia refrigerant are exempt. |
EXCEPTION: | Controls are not required for the following: 1. Single-compressor systems that do not have variable capacity capability. 2. Suction groups that have a design saturated suction temperature of 30°F (-1.1°C) or higher, suction groups that comprise the high stage of a two-stage or cascade system, or suction groups that primarily serve chillers for secondary cooling fluids. |
EXCEPTION: | Self-contained units. |
Wash. Admin. Code § 51-11C-41000
Reviser's note: The brackets and enclosed material in the text of the above section occurred in the copy filed by the agency and appear in the Register pursuant to the requirements of RCW 34.08.040.