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Hi I’m Patricia Bleckman with KE2 Therm Solutions

Although some of the ways to reduce refrigeration energy costs in restaurants, supermarkets and convenience stores are pretty obvious — like making sure door seals on walk-ins and refrigerated cases are intact, using air curtains where appropriate, or even just making sure that employees are closing refrigerator doors completely.

Lets cover some of the less obvious ways to conserve energy.

Using a modern refrigeration controller is step one. The KE2 Evaporator Efficiency has adaptive demand defrost, it only defrosts when appropriate.

So, it’s not uncommon to see 70% of the defrost cycles are eliminated, and we’ve seen as high as 87%, compared to an old fashioned scheduled defrost control, which performs the defrost whether its needed or not.

Because each defrost cycle puts heat into the space, eliminating these un-necessary defrost cycles reduces energy two ways, by not running the heaters, and then by not running the refrigeration to pull the temperature back down.

We typically see over a 20% reduction in energy usage when using the KE2 Evaporator Efficiency.

And, while most refrigeration controllers activate the defrost heaters, but don’t regulate the temperature of the heaters, causing larger than necessary spikes in the walk-in temperature, from the excess heat they are putting into the space.

The KE2 Evaporator Efficiency, on the other hand, regulates the heaters, reducing the spikes and holding the temperature much more steady.

So the refrigeration equipment doesn’t have to work as hard to pull down to the temperature setpoint.

A few more ways to save energy in refrigerated spaces:
Switching incandescent light bulbs to LED lights can save energy, by not only using less energy up front, they also put out less heat, so the system isn’t forced to re-cool the space.

And, don’t forget routine walk-in maintenance like cleaning the evaporator or condenser coils, making sure the refrigerant suction line is insulated and verifying a proper refrigerant charge – these can all contribute to further energy savings.

If you’d like to learn more about saving energy with the KE2 Evaporator Efficiency refrigeration controller, on our website, we have several case studies showing the energy savings it provides.

And we have numerous videos on our controllers on YouTube or on our website as well.

If you have questions, please don’t hesitate to contact our technical support team.

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