PLC control systems
Cool Ctrl by Danfoss vast experience designing industrial refrigeration systems enables us to support our customer’s processing facilities, cold storage, and custom OEM manufacturer applications needs. We excel at finding solutions for difficult circumstances, such as size restrictions or environmental challenges.
We provide customers with experienced field engineers to collaborate and offer design suggestions to develop and implement a convenient, efficient refrigeration control system. Our wide range of customized PLC controls use intelligent modulation to optimize plant management, reduce energy and operating costs, and ensure a high level of employee and product safety.
The Danfoss Cool Ctrl portfolio of industrial refrigeration control systems are built on Allen-Bradley hardware and Rockwell software that have been industry standard for decades. This pedigree allows us to deliver a robust product that will remain in service and reliable for many years. With Allen-Bradley hardware, our customers can purchase off-the-shelf replacement parts if the need arises.
Features and benefits
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Units built around IIAR safety standards
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UL508A and cUL compliant
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Compressors staged to reduce downtime and increase efficiency
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Wet bulb temp used to float the discharge pressure up or down to run the condenser more efficiently
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Easy to navigate, user-friendly graphical interface
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Historical trending graphs provided for clients to tune their system efficiency, saving money in kilowatt usage
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Intelligent equipment control for reduced energy consumption
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Communication interface to OEM industry standard control panels
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Ethernet/IP, Modbus TCP, and Modbus RTU expertise
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Virtual training tools for customers available
PLC Control Systems to match your needs

This access to such comprehensive data by the PLC system allows operators to interface with screw and reciprocating compressors from remote locations, an important feature when a compressor has an alarm, fault, or required set-point adjustment.

The evaporator control function optimizes the operation of the valves and fans to facilitate optimized temperature and defrost control of your evaporator air units.
Distributed microprocessor controllers also permit operators to build a complete control system over time by locally automating system components one at a time.

Controls the operation of fans and water pumps which enables optimum control of head pressure and efficiency.
Access to condenser microprocessor data on the Cool Ctrl by Danfoss PLC system allows operators to interface to condenser panels via remote locations, which is especially beneficial for alarms with fault set-point adjustment.
Danfoss Cool Ctrl PLC systems support all condenser manufacturer microprocessor panels, including legacy panels for substantial cost and time advantage.

The essential liquid management of your system. Provides the optimized liquid level control and refrigerant pump sequencing.
The ability of PLC systems from Cool Ctrl by Danfoss to access vessel microprocessor data allows system operators to interface vessel panels from remote locations, which is especially beneficial for alarms with fault set-point adjustment.

Supervisory control systems operate refrigeration facilities 24/7 without the need for human intervention. This automation allows facilities to run unattended, easing the demand on personnel while providing operators and service personnel with near instant access to critical updates in the event of an alarm or system failure.
Features and benefits:
- Intuitive graphical view of the complete refrigeration system
- Remote access in the event of an alarm or system failure
- Remote access for system monitoring or to address an alarm or failure

Cool Ctrl by Danfoss provides commissioning support on all supervisory control systems. Our field engineers work with customers to commission and deliver an efficient and effective control system designed to meet their needs, on-site or remotely, with long-term trouble shooting support available.
Features and benefits:
- Commissioning support on all supervisory control systems
- Onsite or remote commissioning or trouble shooting
- Long-term support available

Cool Ctrl by Danfoss ability to monitor kilowatt (kW) usage at refrigeration facilities results in reduced operator costs—by remotely shifting or shedding kW energy to non-peak hours, energy costs can be significantly cut (available option).
Features and benefits:
- Reduced energy costs while maintaining product integrity
- Works seamlessly with PLC refrigeration controls

Cool Ctrl by Danfoss control systems follow IIAR standards to maximize safety.
Alarm text/email notifications are provided to key stakeholders, e.g. operators, facility management, and service contractors, to be alerted in the event of a system alarm.
Features and benefits:
- Adherence to IIAR standards for maximum safety levels
- Alarm notifications customized to multiple parties

Historical trending allows the Danfoss Cool Ctrl portfolio to review a control system’s various data points to troubleshoot and/or adjust performance for maximized efficiency, reduced downtime, and decreased customer costs.
Features and benefits:
- Optimized system performance
- Minimized downtime
- Reduced costs

The Danfoss Cool Ctrl portfolio leverages a comprehensive software library for connecting to older screw compressor, vessel, condenser and evaporator controllers. Our legacy control system library eliminates the need to make costly replacements of older controllers that are still functioning properly.
By not replacing controllers, customers save on the cost of a new controller, labor, and expensive field wiring. Further, Cool Ctrl's by Danfoss software library enables potential older control equipment and wiring can be retained and updated with new software versions for further savings on the system upgrade.
Features and benefits:
- Leverage consultative approach of Cool Ctrl by Danfoss
- Maximize the re-using of existing control equipment to save time and money
- Fast and easy remote access
- Reduced risk of human error with automation
- Decreased demand for personnel
- Onsite or remote commissioning
- Long-term support available on all PLC supervisory control systems
Related products

Cool Ctrl by Danfoss panels simplify the design, installation, and commissioning of industrial refrigeration controls. Compact and flexible, they boost performance and safety across a wide variety of applications—ideal for both small and large-scale systems.

Designed for seamless integration and dependable performance, each panel supports critical operations while offering flexibility to meet unique site requirements. Whether controlling vessels or condensers, these panels are engineered for efficiency, safety, and ease of use; ideal for both new installations and retrofit projects.

Variable frequency drive and soft starter panels are designed for both new and retrofit applications, providing a bypass option for redundancy and offering compatibility with compressors, condensers, liquid recirculators, and complete motor control centers (MCC).
Related applications
Danfoss Industrial Refrigeration solutions offer highly efficient and reliable refrigeration systems optimized for ammonia and other natural refrigerants.
Learn more

Contact us
Explore more at Coolctrl.Danfoss.us. Our team of industrial refrigeration specialists is here to help you take the next step. Connect with us to discover how Cool Ctrl by Danfoss can create a customized solution tailored to your needs.
Email: coolctrl@danfoss.com
Phone: +1-717-765-9100
Cool Ctrl by Danfoss
11885 Mutual Drive
Waynesboro, PA 17268
Contact us


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