Freezer & high humidity warehouses

Why those PIR sensors can not be established in freezer warehouse?

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Infrared motion sensors are optical sensors with focusing lenses. In freezer warehouses lenses get covered by frost and the sensor can no longer detect any motions.

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Why is the installation of motion sensors especially effective in freezing warehouses?

No one pays attention to the fact that even the best LEDs use only 20 % of the energy for light emission and 80 % for heat generation.

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150 W light fixture = 120 W heater (150 W x 0.8 = 120 W)!

100 pcs 150W light fixtures = 12kW heater  and the cooling system of the warehouse must always compensate those parasite heat emissions. In such way, electric energy gets wasted twice – firstly on the air heating by fixtures, secondly on it’s cooling by chiller:

+12kW heating – 12kW cooling = 0.  Waste 24kW. Every hour! Every day!

The implementation of “Smart Lighting” in cold and freezer warehouses in particular gives the maximum economic benefit!