Wash. Admin. Code § 51-11C-41000 - Section C410-Refrigeration system requirements
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 Classification c |
Maximum Daily Energy Consumption kWh/day d,e |
Test Standard |
Remote condensing commercial refrigerators and commercial freezers |
Remote (RC) |
Vertical open (VOP) |
38 (M) |
>32 |
VOP.RC.M |
0.64 × TDA + 4.07 |
AHRI 1200 |
0 (L) |
<32 |
VOP.RC.L |
2.20 × TDA + 6.85 |
||||
Semivertical open (SVO) |
38 (M) |
>32 |
SVO.RC.M |
0.66 × TDA + 3.18 |
|||
0 (L) |
<32 |
SVO.RC.L |
2.20 × TDA + 6.85 |
||||
Horizontal open (HZO) |
38 (M) |
>32 |
HZO.RC.M |
0.35 × TDA + 2.88 |
|||
0 (L) |
<32 |
HZO.RC.L |
0.55 × TDA + 6.88 |
||||
Vertical closed transparent (VCT) |
38 (M) |
>32 |
VCT.RC.M |
0.15 × TDA + 1.95 |
|||
0 (L) |
<32 |
VCT.RC.L |
0.49 × TDA + 2.61 |
||||
Horizontal closed transparent (HCT) |
38 (M) |
>32 |
HCT.RC.M |
0.16 × TDA + 0.13 |
|||
0 (L) |
<32 |
HCT.RC.L |
0.34 × TDA + 0.26 |
||||
Vertical closed solid (VCS) |
38 (M) |
>32 |
VCS.RC.M |
0.10 × V + 0.26 |
|||
0 (L) |
<32 |
VCS.RC.L |
0.21 × V + 0.54 |
||||
Horizontal closed solid (HCS) |
38 (M) |
>32 |
HCS.RC.M |
0.10 × V + 0.26 |
|||
0 (L) |
<32 |
HCS.RC.L |
0.21 × V + 0.54 |
||||
Service over counter (SOC) |
38 (M) |
>32 |
SOC.RC.M |
0.44 × TDA + 0.11 |
|||
0 (L) |
<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) |
>32 |
VOP.RC.M |
1.69 × TDA + 4.71 |
AHRI 1200 |
0 (L) |
<32 |
VOP.RC.L |
4.25 × TDA + 11.82 |
||||
Semivertical open (SVO) |
38 (M) |
>32 |
SVO.RC.M |
1.70 × TDA + 4.59 |
|||
0 (L) |
<32 |
SVO.RC.L |
4.26 × TDA + 11.51 |
||||
Horizontal open (HZO) |
38 (M) |
>32 |
HZO.RC.M |
0.72 × TDA + 5.55 |
|||
0 (L) |
<32 |
HZO.RC.L |
1.90 × TDA + 7.08 |
||||
Vertical closed transparent (VCT) |
38 (M) |
>32 |
VCT.RC.M |
0.10 × V + 0.86 |
|||
0 (L) |
<32 |
VCT.RC.L |
0.29 × V + 2.95 |
||||
Vertical closed solid (VCS) |
38 (M) |
>32 |
VCS.RC.M |
0.05 × V + 1.36 |
|||
0 (L) |
<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) |
>32 |
HCT.RC.M |
0.06 × V + 0.37 |
AHRI 1200 |
0 (L) |
<32 |
HCT.RC.L |
0.08 × V + 1.23 |
||||
Horizontal closed solid (HCS) |
38 (M) |
>32 |
HCS.RC.M |
0.05 × V + 0.91 |
|||
0 (L) |
<32 |
HCS.RC.L |
0.06 × V + 1.12 |
||||
Service over counter (SOC) |
38 (M) |
>32 |
SOC.RC.M |
0.52 × TDA + 1.00 |
|||
0 (L) |
<32 |
SOC.RC.L |
1.10 × TDA + 2.10 |
||||
Self-contained commercial refrigerators with transparent doors for pull-down temperature applications |
Self-contained |
Pull-down |
38(M) |
>32 |
PD.SC.M |
0.11 × V + 0.81 |
AHRI 1200 |
Commercial ice cream freezers |
Remote (RC) |
Vertical open (VOP) |
-15 (I) |
<-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 |
-15 (I) |
<-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 |
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:
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
RC = Remote condensing
SC = Self-contained
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.
Refrigeration equipment, defined in DOE 10 C.F.R. Part 431.62, shall have an energy use in kWh/day not greater than the values of Table C410.2 when tested and rated in accordance with AHRI Standard 1200. The energy use shall be verified through certification under an approved certification program or, where a certification program does not exist, the energy use shall be supported by data furnished by the equipment manufacturer.
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 Description |
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 Description |
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 display door.
Table C410.3.1(3)
Walk-in Cooler and Freezer Refrigeration Systems Efficiency Requirements
Class Description |
Class |
Minimum Annual Walk-in Energy Factor AWEF (Btu/hW-h) |
Test Procedure |
Dedicated condensing, medium temperature, |
DC.M.I |
5.61 |
AHRI 1250 |
Dedicated condensing, medium temperature, |
DC.M.O |
7.60 |
|
Dedicated condensing, low temperature, indoor |
DC.L.I, < 6,500 |
9.091 × 10-5 × qnet+ 1.81 |
|
Dedicated condensing, low temperature, indoor |
DC.L.I, [GREATER THAN EQUAL TO] 6,500 |
2.40 |
|
Dedicated condensing, low temperature, 00 Btu/h |
DC.L.O, < 6,500 |
9.091 × 10-5 × qnet+ 2.73 |
|
Dedicated condensing, low temperature,00 Btu/h |
DC.L.O, [GREATER THAN EQUAL TO] 6,500 |
3.15 |
|
Unit cooler, medium |
UC.M |
9.00 |
|
Unit cooler, low temperature, net capacity (q) < 15,500 Btu/h |
UC.L, < 15,500 |
9.091 × 10-5 × qnet+ 2.73 |
|
Unit cooler, low temperature, net capacity (q) [GREATER THAN EQUAL TO] 15,500 Btu/h |
UC.L, [GREATER THAN EQUAL TO] 15,500 |
4.15 |
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. |
Notes
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.
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.
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 Classification c | Maximum Daily Energy Consumption kWh/day d,e | Test Standard |
Remote condensing commercial refrigerators and commercial freezers | Remote (RC) | Vertical open (VOP) | 38 (M) | >32 | VOP.RC.M | 0.64 × TDA + 4.07 | AHRI 1200 |
0 (L) | <32 | VOP.RC.L | 2.20 × TDA + 6.85 | ||||
Semivertical open (SVO) | 38 (M) | >32 | SVO.RC.M | 0.66 × TDA + 3.18 | |||
0 (L) | <32 | SVO.RC.L | 2.20 × TDA + 6.85 | ||||
Horizontal open (HZO) | 38 (M) | >32 | HZO.RC.M | 0.35 × TDA + 2.88 | |||
0 (L) | <32 | HZO.RC.L | 0.55 × TDA + 6.88 | ||||
Vertical closed transparent (VCT) | 38 (M) | >32 | VCT.RC.M | 0.15 × TDA + 1.95 | |||
0 (L) | <32 | VCT.RC.L | 0.49 × TDA + 2.61 | ||||
Horizontal closed transparent (HCT) | 38 (M) | >32 | HCT.RC.M | 0.16 × TDA + 0.13 | |||
0 (L) | <32 | HCT.RC.L | 0.34 × TDA + 0.26 | ||||
Vertical closed solid (VCS) | 38 (M) | >32 | VCS.RC.M | 0.10 × V + 0.26 | |||
0 (L) | <32 | VCS.RC.L | 0.21 × V + 0.54 | ||||
Horizontal closed solid (HCS) | 38 (M) | >32 | HCS.RC.M | 0.10 × V + 0.26 | |||
0 (L) | <32 | HCS.RC.L | 0.21 × V + 0.54 | ||||
Service over counter (SOC) | 38 (M) | >32 | SOC.RC.M | 0.44 × TDA + 0.11 | |||
0 (L) | <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) | >32 | VOP.RC.M | 1.69 × TDA + 4.71 | AHRI 1200 |
0 (L) | <32 | VOP.RC.L | 4.25 × TDA + 11.82 | ||||
Semivertical open (SVO) | 38 (M) | >32 | SVO.RC.M | 1.70 × TDA + 4.59 | |||
0 (L) | <32 | SVO.RC.L | 4.26 × TDA + 11.51 | ||||
Horizontal open (HZO) | 38 (M) | >32 | HZO.RC.M | 0.72 × TDA + 5.55 | |||
0 (L) | <32 | HZO.RC.L | 1.90 × TDA + 7.08 | ||||
Vertical closed transparent (VCT) | 38 (M) | >32 | VCT.RC.M | 0.10 × V + 0.86 | |||
0 (L) | <32 | VCT.RC.L | 0.29 × V + 2.95 | ||||
Vertical closed solid (VCS) | 38 (M) | >32 | VCS.RC.M | 0.05 × V + 1.36 | |||
0 (L) | <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) | >32 | HCT.RC.M | 0.06 × V + 0.37 | AHRI 1200 |
0 (L) | <32 | HCT.RC.L | 0.08 × V + 1.23 | ||||
Horizontal closed solid (HCS) | 38 (M) | >32 | HCS.RC.M | 0.05 × V + 0.91 | |||
0 (L) | <32 | HCS.RC.L | 0.06 × V + 1.12 | ||||
Service over counter (SOC) | 38 (M) | >32 | SOC.RC.M | 0.52 × TDA + 1.00 | |||
0 (L) | <32 | SOC.RC.L | 1.10 × TDA + 2.10 | ||||
Self-contained commercial refrigerators with transparent doors for pull-down temperature applications | Self-contained | Pull-down | 38(M) | >32 | PD.SC.M | 0.11 × V + 0.81 | AHRI 1200 |
Commercial ice cream freezers | Remote (RC) | Vertical open (VOP) | -15 (I) | <-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 | -15 (I) | <-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 | 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:
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
RC = Remote condensing
SC = Self-contained
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.
Refrigeration equipment, defined in DOE 10 C.F.R. Part 431.62 , shall have an energy use in kWh/day not greater than the values of Table C410.2 when tested and rated in accordance with AHRI Standard 1200. The energy use shall be verified through certification under an approved certification program or, where a certification program does not exist, the energy use shall be supported by data furnished by the equipment manufacturer.
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 Description | 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 Description | 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 display door.
Table C410.3.1(3)
Walk-in Cooler and Freezer Refrigeration Systems Efficiency Requirements
Class Description | Class | Minimum Annual Walk-in Energy Factor AWEF (Btu/hW-h) | Test Procedure |
Dedicated condensing, medium temperature, | DC.M.I | 5.61 | AHRI 1250 |
Dedicated condensing, medium temperature, | DC.M.O | 7.60 | |
Dedicated condensing, low temperature, indoor | DC.L.I, < 6,500 | 9.091 × 10-5 × qnet+ 1.81 | |
Dedicated condensing, low temperature, indoor | DC.L.I, [GREATER THAN EQUAL TO] 6,500 | 2.40 | |
Dedicated condensing, low temperature, 00 Btu/h | DC.L.O, < 6,500 | 9.091 × 10-5 × qnet+ 2.73 | |
Dedicated condensing, low temperature,00 Btu/h | DC.L.O, [GREATER THAN EQUAL TO] 6,500 | 3.15 | |
Unit cooler, medium | UC.M | 9.00 | |
Unit cooler, low temperature, net capacity (q) < 15,500 Btu/h | UC.L, < 15,500 | 9.091 × 10-5 × qnet+ 2.73 | |
Unit cooler, low temperature, net capacity (q) [GREATER THAN EQUAL TO] 15,500 Btu/h | UC.L, [GREATER THAN EQUAL TO] 15,500 | 4.15 |
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. |
Notes
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.