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C403.10.2.1 Performance Standards (Mandatory)
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Effective January 1, 2020, walk-in coolers and walk-in freezers shall meet the requirements of Tables C403.10.2.1(1), C403.10.2.1(2) and C403.10.2.1(3).
WALK-IN COOLER AND FREEZER DISPLAY DOOR EFFICIENCY REQUIREMENTSa
| CLASS DESCRIPTOR | CLASS | MAXIMUM ENERGY CONSUMPTION (kWh/day)a |
| Display door, medium temperature | DD, M | 0.04 x Add + 0.41 |
| Display door, low temperature | DD, L | 0.15 x Add + 0.29 |
- Add is the surface area of the display door.
WALK-IN COOLER AND FREEZER NONDISPLAY DOOR EFFICIENCY REQUIREMENTSa
| CLASS DESCRIPTOR | CLASS | MAXIMUM ENERGY CONSUMPTION (kWh/day)a |
| Passage door, medium temperature | PD, M | 0.05 x And + 1.7 |
| Passage door, low temperature | PD, L | 0.14 x And + 4.8 |
| Freight door, medium temperature | FD, M | 0.04 x And + 1.9 |
| Freight door, low temperature | FD, L | 0.12 x And + 5.6 |
- And is the surface area of the nondisplay door.
WALK-IN COOLER AND FREEZER REFRIGERATION SYSTEM EFFICIENCY REQUIREMENTS
| CLASS DESCRIPTOR | CLASS | MINIMUM ANNUAL WALK-IN ENERGY FACTOR AWEF (Btu/W-h) |
| Dedicated condensing, medium temperature, indoor system | DC.M.I | 5.61 |
| Dedicated condensing, medium temperature, indoor system, > 9,000 Btu/h capacity | DC.M.I, > 9,000 | 5.61 |
| Dedicated condensing, medium temperature, outdoor system | DC.M.I | 7.60 |
| Dedicated condensing, medium temperature, outdoor system, > 9,000 Btu/h capacity | DC.M.I, > 9,000 | 7.60 |
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