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C403.10.2.1 Performance Standards (Mandatory)

2018 Philadelphia Energy Conservation Code > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.10 Refrigeration Equipment Performance > C403.10.2 Walk-In Coolers and Walk-In Freezers (Mandatory) > 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).

TABLE C403.10.2.1(1)

WALK-IN COOLER AND FREEZER DISPLAY DOOR EFFICIENCY REQUIREMENTS^a

CLASS DESCRIPTOR	CLASS	MAXIMUM ENERGY CONSUMPTION (kWh/day)^a
Display door, medium temperature	DD, M	0.04 x A_dd + 0.41
Display door, low temperature	DD, L	0.15 x A_dd + 0.29

A_dd is the surface area of the display door.

TABLE C403.10.2.1(2)

WALK-IN COOLER AND FREEZER NONDISPLAY DOOR EFFICIENCY REQUIREMENTS^a

CLASS DESCRIPTOR	CLASS	MAXIMUM ENERGY CONSUMPTION (kWh/day)^a
Passage door, medium temperature	PD, M	0.05 x A_nd + 1.7
Passage door, low temperature	PD, L	0.14 x A_nd + 4.8
Freight door, medium temperature	FD, M	0.04 x A_nd + 1.9
Freight door, low temperature	FD, L	0.12 x A_nd + 5.6

A_nd is the surface area of the nondisplay door.

TABLE C403.10.2.1(3)

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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