| Envelope | Freezer insulation | R-46 | R-36 | YES |
| Cooler insulation | R-36 | R-20 | YES |
| Automatic closer doors | Yes | No | YES |
High efficiency
low/no heat reach-in doors | 40 W/ft. of door frame (low temperature)
17 W/ft. of door frame (medium temperature) | 40 W/ft. of door frame (low temperature)
17 W/ft. of door frame (medium temperature) | YES |
| Evaporator | Evaporator fan motor and control | Shaded pole and split phase motors are prohibited. Use PSC or EMC motors. | Constant speed fan | YES |
| Hot gas defrost | No electrical defrosting | Electric defrost | YES |
| Condenser | Air-cooled condenser fan motor and control | Shaded pole and split phase motors are prohibited. Use PSC or EMC motors. Add condenser fan controllers | Cycling one speed fan | YES |
| Air-cooled condenser design approach | Floating head pressure controls or ambient subcooling | 10° F to 15° F dependent on suction temperature | YES |
| Lighting | Lighting power density
(W/sq. ft.) | 0.6 W/sq. ft. | 0.6 W/sq. ft. | YES |
