The eisa was crafted with the intent of improving energy efficiency within many industries including refrigeration.
Walk in cooler lighting requirements.
Minimum lighting intensity requirements.
Metal halide lamps are also used in walk in freezers found in warehouses and industrial plants and produce up to 32 000 lumens.
9 1 2010 2 23 39 pm.
However t8 high output lighting generally produces 2 500 lumens per light bulb while t12 lamps only produce up to 2 000 lumens per light bulb.
Insulation insulation of walls ceiling and doors of at least r 25 for coolers and r 32 for freezers.
Light sources shall have an efficacy of not less than 40 lumens per watt including any ballast losses or shall be provided with a device that automatically turns off the lights within 15 minutes of when the walk in cooler or walk in freezer was last occupied.
Floor insulation of at least r 28 for freezers.
Lighting lighting with an efficiency of 40 lumens per watt or more including ballast losses or occupancy sensors that turn lights off within 15 minutes if the walk in is unoccupied.
The specific legislation in question is the 2009 energy independence and security act eisa which establishes minimum energy efficiency requirements for walk in cooler and freezer panels doors refrigeration and lighting.