KE2 Manual: A Comprehensive Guide (Updated 12/27/2025)
Today’s date is 12/27/2025 06:32:34․ This manual details the KE2 Evaporator Efficiency controller, a solution praised by professionals like Ross Cailotto, and award-winning defrost technology․
KE2 Therm Solutions Inc․ is dedicated to innovating refrigeration control technology, offering solutions designed to maximize efficiency and minimize energy consumption․ The company’s flagship product, the KE2 Evaporator Efficiency controller (KE2 Evap), has quickly become a preferred choice for service professionals․
Recognized for its advanced capabilities, KE2’s Low Temp Defrost controller earned a prestigious gold award in the 2015 Dealer Design Awards, specifically within the Commercial Controls category․ This demonstrates KE2’s commitment to delivering reliable and cutting-edge solutions․
KE2 focuses on providing controllers that address real-world challenges faced by refrigeration technicians and facility managers, ultimately leading to cost savings and improved system performance․ Their products are built with user-friendliness and robust functionality in mind․
What is the KE2 Evaporator Efficiency Controller (KE2 Evap)?
The KE2 Evaporator Efficiency Controller (KE2 Evap) is a sophisticated device engineered to optimize the performance of refrigeration systems․ As highlighted by Ross Cailotto of R․E․C․ Service Corp․, it provides a powerful solution for improving evaporator control․
Essentially, the KE2 Evap dynamically manages evaporator fans, ensuring they operate only when necessary for effective heat exchange; This intelligent control prevents unnecessary fan runtime, significantly reducing energy waste and lowering operating costs․
Prior to the KE2 Evap, technicians often faced challenges with inefficient evaporator operation․ This controller addresses those issues, offering a streamlined and effective approach to maximizing refrigeration system efficiency and reliability․
KE2 Low Temp Defrost Controller: Award-Winning Technology
The KE2 Low Temp Defrost Controller, developed by KE2 Therm Solutions Inc․, represents a significant advancement in refrigeration control technology․ This innovative controller earned the prestigious Gold Award in the 2015 Dealer Design Awards, specifically within the Commercial Controls category․
This recognition underscores the controller’s superior design and effectiveness in managing defrost cycles for low-temperature refrigeration applications․ It’s engineered to minimize energy consumption during defrost, while ensuring thorough and reliable ice removal from evaporator coils․
The award-winning design focuses on precise control and adaptability, offering optimized defrost strategies for various system configurations and operating conditions, ultimately enhancing system performance and longevity․
Understanding KE2 Controller Functionality
KE2 controllers expertly manage evaporator efficiency and defrost cycles, optimizing refrigeration systems for peak performance and energy savings through intelligent operation․
Core Principles of Operation
The KE2 controller fundamentally operates by continuously monitoring evaporator temperatures and dynamically adjusting fan operation to maximize efficiency․ Unlike traditional timed-based systems, KE2 utilizes real-time data to precisely control defrost cycles, initiating them only when necessary – preventing wasteful energy consumption․
This intelligent approach extends beyond simple temperature control; the controller actively prevents evaporator coil freezing by modulating fan speeds and optimizing airflow․ R․E․C․ Service Corp․’s experience highlights the controller’s ability to replace older, less efficient systems․
The core principle revolves around maintaining optimal evaporator performance, reducing energy costs, and extending the lifespan of refrigeration equipment through proactive and adaptive control strategies․ This results in significant operational savings and improved system reliability․
Evaporator Efficiency Control – The Primary Function
The KE2 Evap’s primary function centers on maximizing evaporator efficiency, directly translating to energy savings and improved system performance․ It achieves this by continuously assessing evaporator coil load and dynamically adjusting fan speeds․ This prevents unnecessary fan operation during periods of low demand, reducing energy waste․
Instead of relying on fixed schedules, the KE2 controller responds to actual operating conditions․ As Ross Cailotto discovered, this provides a superior solution compared to older systems․ The controller optimizes airflow, ensuring consistent temperature control and preventing coil freezing without excessive defrosting․
Ultimately, the KE2’s efficiency control minimizes energy consumption while maintaining optimal refrigeration capacity, leading to lower operating costs and a more sustainable operation․
Defrost Cycle Management
The KE2 Low Temp Defrost controller, recognized with a gold award in the 2015 Dealer Design Awards, excels in intelligent defrost cycle management․ Unlike traditional time-clock or temperature-based defrost systems, KE2 utilizes demand defrost, initiating cycles only when necessary – based on actual frost buildup․
This on-demand approach significantly reduces unnecessary defrosting, conserving energy and extending evaporator life․ The controller monitors evaporator conditions and precisely controls the duration of each defrost cycle, preventing wasted energy and minimizing product temperature fluctuations․
By optimizing defrost cycles, the KE2 controller ensures efficient operation, reduces energy costs, and maintains consistent refrigeration performance, representing a substantial improvement over conventional methods․
Installation and Wiring
Proper installation is crucial for optimal performance․ Before wiring, ensure a thorough pre-installation checklist review, and consult the provided diagrams for common applications․
Pre-Installation Checklist
Before commencing installation of your KE2 controller, a meticulous pre-installation checklist is paramount for ensuring seamless integration and optimal functionality․ First, verify the compatibility of the KE2 unit with your existing refrigeration system, paying close attention to voltage requirements and sensor types․
Confirm that all necessary wiring and mounting hardware are readily available․ Inspect the physical environment for potential obstructions or hazards that could impede installation or future maintenance․ Ensure the power supply meets the specified requirements detailed in the ‘Power Supply Requirements’ section of this manual․
Finally, carefully review all wiring diagrams to fully understand the connection points and avoid potential errors․ A well-prepared installation site significantly reduces troubleshooting time and maximizes the lifespan of your KE2 controller․
Wiring Diagrams for Common Applications
Proper wiring is crucial for the KE2 controller’s performance․ This section provides illustrative diagrams for frequently encountered refrigeration setups․ Diagrams include standard single-compressor systems, multiplex systems, and those utilizing hot gas defrost․ (Note: Specific diagrams are available in the full downloadable manual – consult the KE2 Therm Solutions website)․
Each diagram clearly labels all connection points, including power supply, temperature sensors, defrost termination sensors, and fan control relays․ Always adhere to local electrical codes and safety regulations during wiring․ Incorrect wiring can damage the controller and void the warranty․
Refer to the pre-installation checklist to confirm compatibility before connecting any wires․ If your application differs from those shown, consult a qualified HVAC/R technician․
Sensor Placement and Considerations
Accurate temperature readings are fundamental to the KE2 controller’s efficiency․ Evaporator sensors should be securely attached to the evaporator coil, ideally near the return bend, ensuring good thermal contact․ Avoid direct sunlight or airflow impacting the sensor․
Defrost termination sensors must be positioned to accurately detect ice buildup – typically on the evaporator coil itself․ (Refer to the detailed diagrams in the full manual for optimal placement)․ Proper sensor location prevents premature or prolonged defrost cycles․
Consider the environment: High humidity or corrosive atmospheres may require sensor protection․ Regularly inspect sensors for damage or contamination․
Power Supply Requirements
The KE2 controller is designed to operate on a standard 24 VAC power supply․ Ensure the power supply provides stable voltage within the range of 20-28 VAC to guarantee optimal performance and prevent damage to the unit․ A dedicated transformer is recommended to isolate the controller from potential voltage fluctuations․
(Consult the wiring diagrams for specific voltage and amperage requirements based on your model)․ Proper grounding is essential for safety and to minimize electrical interference․ Avoid using power supplies shared with other high-demand equipment․
Verify polarity before connecting the power supply to prevent incorrect operation․
Programming and Configuration
Accessing the programming menu allows customization of temperature parameters, defrost cycles, fan control, and alarm settings for optimal KE2 controller functionality․
Accessing the Programming Menu
Navigating the KE2 controller’s programming menu is straightforward, enabling users to tailor settings to specific refrigeration system needs․ Typically, access is initiated by pressing and holding the ‘MENU’ or ‘MODE’ button on the controller’s faceplate for approximately three to five seconds․ The display will then shift from the runtime screen to the main programming menu․
Within this menu, users will encounter a series of options, often represented by numerical codes or descriptive labels․ Use the ‘UP’ and ‘DOWN’ arrow buttons to scroll through these options․ Selecting a specific parameter is usually confirmed by pressing the ‘ENTER’ or ‘SELECT’ button․ Remember to consult the full programming guide for detailed explanations of each setting and its impact on system performance․ Proper menu navigation ensures optimal efficiency and control․
Setting Temperature Parameters
Precisely configuring temperature parameters is crucial for optimal KE2 controller performance and efficient refrigeration․ Within the programming menu, locate the sections dedicated to ‘Set Point’ or ‘Temperature Control’․ Here, you can define the desired operating temperature for your evaporator․
Typically, separate settings exist for the ‘Cut-In’ (temperature at which cooling begins) and ‘Cut-Out’ (temperature at which cooling stops) points․ Carefully consider the specific requirements of your refrigerated load when establishing these values․ Smaller differentials between cut-in and cut-out temperatures generally lead to more consistent temperature control, but may increase compressor cycling․ Always document your settings for future reference and troubleshooting․
Defrost Cycle Configuration Options
The KE2 controller offers extensive customization of defrost cycles to maximize efficiency and prevent ice buildup․ Access the ‘Defrost’ section within the programming menu to adjust key parameters․ You can configure defrost frequency based on time intervals (e․g․, every 24 hours) or demand-initiated triggers based on evaporator temperature or runtime․
Defrost duration is also adjustable, allowing you to optimize the cycle length for your specific application․ Consider the evaporator coil’s size and the ambient conditions when setting this value․ Furthermore, options for terminating the defrost cycle based on temperature rise are available, ensuring efficient energy usage and preventing unnecessary defrosting․
Fan Control Settings
The KE2 controller provides versatile fan control options for optimal airflow management․ Within the programming menu, navigate to the ‘Fan’ settings to configure fan operation based on evaporator demand and system conditions․ You can select between continuous fan operation, fan cycling based on evaporator temperature, or a combination of both․
Adjustable fan speed settings allow for fine-tuning airflow to match cooling requirements․ Consider utilizing multi-speed fans for enhanced efficiency and temperature control․ The controller also supports fan safety features, including minimum run times to prevent evaporator freeze-up and automatic shutdown in case of fan failure, ensuring reliable operation․
Alarm Configuration and Troubleshooting
The KE2 controller features a comprehensive alarm system to alert users to potential issues․ Access the ‘Alarm’ settings within the programming menu to customize alarm thresholds for high/low temperatures, defrost failures, and sensor malfunctions․ Configure alarm outputs to trigger visual or audible alerts, or integrate with a Building Management System (BMS) for remote notification․
Troubleshooting alarms involves identifying the root cause and implementing corrective actions․ Refer to the controller’s display for specific error codes and consult the troubleshooting section of this manual․ Regularly testing alarm functionality ensures system reliability․ Proper alarm configuration minimizes downtime and protects valuable inventory․
Troubleshooting Common Issues
This section provides solutions for typical KE2 controller problems, including display/power failures, inaccurate temperature readings, defrost malfunctions, and fan operation difficulties․
No Display or Power
If the KE2 controller exhibits no display or power, begin with fundamental checks․ Verify the power supply connection is secure and delivering the correct voltage, as specified in the installation guide․ Inspect the fuse associated with the controller’s power circuit; a blown fuse is a common cause․
Confirm the wiring is correct, referencing the appropriate wiring diagram for your specific application․ A loose or incorrectly connected wire can prevent power-up․ Also, examine the power supply itself for any signs of damage or malfunction․ If using an external power supply, test its output with a multimeter․
If these initial steps don’t resolve the issue, consider a potential internal controller fault and contact KE2 Therm Solutions support for further assistance․
Incorrect Temperature Readings
When the KE2 controller displays inaccurate temperature readings, the first step is to verify proper sensor functionality․ Ensure the sensor is securely connected to the controller and that the wiring is intact, free from corrosion or damage․ Confirm the correct sensor type is selected within the controller’s programming menu․
Check the sensor’s physical placement; it should be positioned correctly to accurately measure the evaporator temperature, avoiding direct airflow or heat sources․ Calibrate the sensor if the controller offers this feature, following the instructions in the programming section․
If the problem persists, try replacing the sensor with a known good one to rule out a faulty sensor․ Contact KE2 support if readings remain consistently incorrect after these checks․
Defrost Cycle Malfunctions
If the KE2 controller experiences defrost cycle issues, begin by reviewing the programmed defrost settings․ Verify the defrost frequency, duration, and termination temperature are appropriate for the application and operating conditions․ Ensure the defrost heater is functioning correctly; a faulty heater will prevent proper defrosting․
Check the defrost termination sensor; a malfunctioning sensor can cause premature or prolonged defrost cycles․ Confirm that the fan is shutting off during the defrost cycle as programmed․ Inspect the wiring connections to the defrost heater and sensors for any loose connections or damage․
If issues continue, consult the alarm configuration section for relevant error codes and troubleshooting steps․ Contact KE2 support for assistance if the problem persists․
Fan Operation Problems
Addressing fan operation issues with the KE2 controller starts with verifying the fan control settings within the programming menu․ Ensure the fan speed is correctly configured for the application and that the fan is set to operate as intended during normal operation and defrost cycles․
Inspect the fan motor itself for any signs of physical damage or obstruction․ Check the wiring connections to the fan motor and the KE2 controller for loose connections or corrosion․ Confirm the fan relay is functioning correctly, as a faulty relay can prevent the fan from starting or stopping․
Review alarm logs for any fan-related error codes․ If problems persist, consult KE2 support for further diagnostics․
Advanced Features and Settings
Explore remote monitoring, data logging, and BMS integration for enhanced control and analysis of your KE2 system’s performance and operational efficiency․
Remote Monitoring Capabilities
The KE2 controller offers robust remote monitoring features, allowing users to oversee system performance from virtually any location with internet access․ This capability drastically reduces the need for on-site visits, saving valuable time and resources․ Users can access real-time data, historical trends, and alarm notifications through a secure web interface or dedicated mobile application․
This remote access empowers proactive maintenance and rapid response to potential issues․ Parameters like evaporator temperatures, defrost cycle status, and fan operation can be continuously monitored․ Customizable alerts notify personnel of deviations from setpoints or critical system failures, enabling swift corrective action․ Integration with existing building management systems (BMS) further streamlines data collection and centralized control, optimizing overall facility management․
Data Logging and Analysis
The KE2 controller excels in data logging, continuously recording critical operational parameters such as temperatures, defrost cycles, and fan speeds․ This historical data provides invaluable insights into system performance and efficiency trends․ Users can access this logged data through the controller’s interface or export it for in-depth analysis using spreadsheet software․
Detailed analysis of logged data facilitates proactive maintenance scheduling and optimization of system settings․ Identifying patterns and anomalies can pinpoint potential issues before they escalate into costly failures․ This capability supports informed decision-making regarding equipment replacement or upgrades․ Furthermore, data analysis assists in verifying system performance after maintenance or adjustments, ensuring optimal energy efficiency and reliability․
Integration with Building Management Systems (BMS)
The KE2 controller offers seamless integration with a wide range of Building Management Systems (BMS) via industry-standard communication protocols․ This connectivity allows for centralized monitoring and control of refrigeration systems alongside other building functions, enhancing overall facility management efficiency․
Through BMS integration, users can remotely access KE2 controller data, adjust settings, and receive alarms, streamlining operations and reducing response times․ This capability enables automated responses to system events, optimizing energy consumption and minimizing downtime․ Furthermore, integration facilitates comprehensive reporting and analysis of refrigeration system performance within the broader context of building operations, supporting data-driven decision-making and improved sustainability․
Maintenance and Support
Regular maintenance ensures optimal performance․ KE2 Therm Solutions provides comprehensive support, including cleaning procedures, a maintenance schedule, and readily available contact information for assistance․
Recommended Maintenance Schedule
To guarantee consistent and reliable operation of your KE2 controller, a proactive maintenance schedule is crucial․ We recommend a visual inspection of all wiring connections quarterly, ensuring they remain secure and free from corrosion․
Annually, carefully clean the controller’s enclosure with a soft, dry cloth to remove dust and debris, avoiding any liquid cleaners․
Sensor calibration should be verified every two years, or more frequently in harsh environments, to maintain accurate temperature readings․
Review alarm logs monthly to identify any recurring issues that may indicate a developing problem․
Following this schedule will maximize the lifespan of your KE2 system and minimize potential downtime, ensuring continued efficient performance․
Cleaning Procedures
Maintaining a clean KE2 controller is essential for optimal performance and longevity․ Always disconnect power to the unit before commencing any cleaning procedures to prevent electrical shock․
Use a soft, dry cloth to gently wipe down the exterior enclosure, removing any accumulated dust or dirt․ Avoid abrasive cleaners or solvents, as these can damage the plastic casing and display․
For stubborn grime, lightly dampen the cloth with distilled water, ensuring it is wrung out thoroughly to prevent moisture ingress․
Never spray liquids directly onto the controller․ Pay particular attention to cleaning around the display and any ventilation openings․
Regular cleaning, performed as part of the recommended maintenance schedule, will help ensure reliable operation․
Contacting KE2 Therm Solutions Support
KE2 Therm Solutions is dedicated to providing excellent customer support․ For technical assistance, troubleshooting, or general inquiries, our team is readily available to help․
You can reach us through several convenient channels․ Our primary method of support is via email at support@ke2therm․com․ Please include your controller model number and a detailed description of the issue․
Alternatively, you can contact us by phone during business hours at [Insert Phone Number Here]․
Visit our website at https://ke2therm․com/ for frequently asked questions, downloadable resources, and additional support materials․ We strive to respond to all inquiries promptly and efficiently․
Warranty Information
KE2 Therm Solutions proudly stands behind the quality and reliability of its products․ All KE2 Evaporator Efficiency Controllers and Low Temp Defrost Controllers are covered by a comprehensive warranty against defects in materials and workmanship․
The standard warranty period is one (1) year from the date of original purchase․ This warranty covers repair or replacement of the defective unit, at KE2 Therm Solutions’ discretion․
To initiate a warranty claim, please contact KE2 Therm Solutions Support with proof of purchase and a detailed description of the defect․
This warranty does not cover damage resulting from improper installation, misuse, neglect, or unauthorized modifications․ See our full warranty policy on our website at https://ke2therm․com/ for complete details․