History
Refrigeration Technologies, LLC undertook the installation of energyefficient systems in the walk-in coolers, freezers, and reach-ins across hundreds of Par Mar Convenience Stores in Pennsylvania, Maryland, Kentucky, West Virginia, and Ohio. The primary objective was to deliver cost-effective energy savings for these stores through comprehensive energy upgrades.
The installation comprised the deployment of ArtikControl™ W.I.C. (Walk-in Cooler Controller), ArtikControl™ W.I.F. (Walk-in Freezer Controller), which involved the replacement of existing Shaded Pole Motors with 2-Speed EC Motors, and ArtikControl™ (Anti-Condensation Heater Controller) for managing the Door/Mullen Heaters of the Reach-in Units.
The adoption of ArtikControl™ Controllers and Fan Motor replacements is anticipated to yield substantial annual energy savings, estimated at 3392.58 kWh per Walk-in Cooler and 11123.92 kWh per Walk-in Freezer, based on an average of 3 motors per Walk-in System per store location.
Testimonial
“Our customer’s original design included a Square D micro-PLC. Due to severe supply chain delays with that manufacturer, we offered our Horner controller solution as a “Plan B”. But quickly the customer realized all of the added benefits and capabilities with the Horner controller. After conversion efforts by us, Horner, and the customer; our “Plan B” quickly became “Plan A”. Today, Horner is the controller of choice for this OEM.”
~ Patrick Presto, Stokes Electric
Solution
The ArtikControl™ Controllers are integrated with the Horner XLe (HE-XE1E2DM-10), known for its versatility in accommodating various input and output control features, which are essential for achieving energy efficiency in Walk-in Refrigerated Spaces.
Mounted within the refrigerated space, the ArtikControl™ Controller utilizes two temperature sensors, both Type 3 10-K ohm sensors. One sensor monitors space temperature, while the other, inserted into the coil, measures coil temperature.
The ArtikControl™ Controller, in conjunction with the Horner XLe, manages multiple functions of a Walk-in Refrigerated space. This includes temperature monitoring, compressor control, defrost management (both timed and smart defrost modes), and manual defrost activation.
Utilizing the RS-485 serial port, the Horner Controller facilitates remote monitoring via the ArtikControl™ Dashboard. This feature enables users to monitor real-time temperatures, adjust system settings remotely, receive alarms based on predefined parameters, and view a 30-day graphical display of space and coil temperatures.
Additionally, Refrigeration Technologies LLC installed an ArtikControl™ ACHC Controller for managing Anti-Condensation Heaters in Reach-in doors and mullens heaters. This controller utilizes temperature and humidity sensors to calculate the air’s dew point, triggering the heaters when the dew point reaches the lower set point for a specified duration. Anticipated yearly saving of 12239.91 kWh for 18 door Reach-in Cooler. The user has the ability to remotely monitor and adjusting various set points associated with the Door/Mullen Heaters for their location.