Question-and-Answer Resource for the Building Energy Modeling Community
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If you need to control refrigeration, then your best option may be using the Energy Management System (EMS) feature of EnergyPlus. There is an EMS Actuator option for the Refrigeration:System object, but only to override the Minimum Condensing Temperature input field. If you use this approach, it may be a good idea to include the controls of everything else (lights, computers, etc.) in your EMS objects and routines.
You can read more in this post.
