The KE2 controller offers a user‑friendly interface that begins by prompting refrigerant type, showing a 404 (R‑404a) default. It then guides through sensor setup, safety shield, and SMART ACCESS toggling, ensuring system configuration. now
Overview of KE2 System Features
The KE2 controller’s design prioritizes intuitive operation and robust performance. Upon power‑up, the display immediately requests the refrigerant type, defaulting to 404 (R‑404a). Users can change this by pressing the designated keys, then holding ENTER for three seconds to confirm the selection. Once the correct refrigerant is set, the system proceeds to the sensor configuration stage, where a 3‑pack of colored 15‑temperature sensors is installed via 90‑spade connectors. The controller also includes a high‑voltage safety shield that must be fitted before any electrical connections are made. After sensor setup, the operator is prompted to enable or disable KE2 SMART ACCESS; enabling this feature allows remote configuration through the controller’s network interface, while disabling it restricts access to local controls only. Throughout the process, on‑screen prompts guide the user, ensuring each step is completed correctly before advancing. This streamlined workflow reduces setup time and minimizes the potential for configuration errors, making the KE2 controller a reliable choice for modern refrigeration systems.
The controller logs fault codes and updates via firmware USB, enhancing long‑term reliability now.!
Acquiring the KE2 Manual PDF
Download the KE2 controller manual from the manufacturer website or authorized distributors. Visit the support page, locate the PDF under “Documentation,” click the link to save the file. The file is available in English and PDF format. now!!!!
Official Sources and Download Links
The KE2 controller manual PDF can be obtained directly from the official KE2 Therm Solutions website or through authorized distributors. Visit the support section of the manufacturer’s portal, locate the “Documentation” or “Downloads” tab, and select the latest revision of the KE2 Console/Controller manual (e.g., 1‑171527 Rev. A 2025). The PDF is available for free download after providing a valid email address or by logging into a registered account. For users who prefer a quick link, the manual can also be accessed via the dedicated download page at https://www.polarking;com/ke2-manuals. If the direct link is unavailable, contact the support team at 800‑223‑2017 or email support@ke2therm.com for a secure transfer. The manual is distributed in English and includes detailed instructions on refrigerant selection, sensor installation, safety shield usage, and SMART ACCESS configuration.The manual also includes troubleshooting tips, calibration procedures, and a FAQ section to assist technicians during installation and maintenance.The PDF also contains a quick reference chart for sensor wiring and a list of spare parts.!
System Configuration Basics
The KE2 console prompts for refrigerant type, defaulting to 404 (R‑404a). Use arrow keys to select the correct refrigerant, then press and hold ENTER for three seconds. Finally, toggle SMART ACCESS ENABLED
Refrigerant Type Selection and Troubleshooting
When the KE2 controller boots, it automatically displays “404 (R‑404a)” as the default refrigerant. To correct this, use the arrow keys to scroll through the list until the desired refrigerant appears. Once highlighted, press and hold the ENTER button for three seconds to confirm the choice. If the screen reverts to the default or shows an error, double‑check the refrigerant code against the official list on page 12 of the manual. Common issues include mistyping the code or selecting a refrigerant not supported by the unit, which triggers a 404 error. In such cases, press the ESC key to return to the selection menu, then re‑enter the correct code. After a successful selection, the controller will proceed to the next configuration step. If the error persists, verify that the firmware version matches the manual’s version; mismatches can cause recognition failures. Finally, ensure that the power supply is stable, as voltage fluctuations can interrupt the selection process and reset the controller to its default state. If the controller still rejects the refrigerant, verify the selector switch wiring, confirm firmware is up‑to‑date, and review error codes in troubleshooting guide.
Smart Access Settings
KE2 SMART ACCESS toggles remote control via Wi‑Fi. Navigate to Access menu, select ENABLED or DISABLED, then press ENTER to confirm. Enabling allows connectivity; disabling restricts to local keypad. Ensure firmware supports feature before toggling
Enabling and Disabling KE2 SMART ACCESS
After selecting the correct refrigerant, the KE2 console displays a final configuration screen. The user is prompted to enable or disable SMART ACCESS, which controls remote connectivity via Wi‑Fi or Bluetooth. To enable, highlight “ENABLED”, press and hold ENTER for three seconds, and the display confirms the selection with a green check mark. If local operation is preferred, choose “DISABLED” and confirm similarly. The setting is stored in non‑volatile memory and retained after power cycles. Verify by returning to the main menu; the SMART ACCESS status should reflect the chosen state. For troubleshooting, if the screen does not update, reset the controller by briefly pressing the reset button, then re‑enter the SMART ACCESS menu. Enabling requires a valid network configuration; the controller will prompt for SSID and password during initial setup. Once configured, the device will attempt to connect to the specified network and display a connection status icon. If the connection fails, the user can disable SMART ACCESS to prevent repeated attempts. Operators should keep SMART ACCESS enabled for remote monitoring and ensure system stability!
Hardware Components Included
The KE2 kit includes a 120/208‑240 VAC controller, a high‑voltage safety shield, a 3‑pack of colored 15 °C sensors, six 90 spade connectors, and a ribbon cable for subcooling control. All parts are listed in the manual PDF. Includes ribbon!!!
Parts List of the KE2 Adaptive Control Kit
Below is a comprehensive inventory of every component shipped with the KE2 Adaptive Control Kit, as detailed in the official manual PDF. The kit is designed for quick deployment and includes:
- 1 × KE2 Adaptive Control controller (120/208‑240 VAC)
- 1 × high‑voltage safety shield to protect personnel during maintenance
- 1 × 3‑pack of colored 15 °C temperature sensors for accurate zone monitoring
- 6 × 90 spade connectors for secure sensor wiring
- 1 × ribbon cable for subcooling control and air temperature sensor integration
- 1 × user manual PDF with step‑by‑step installation instructions
All parts are pre‑assembled and labeled for ease of installation. The manual also provides a troubleshooting section that references each component by part number, ensuring that technicians can quickly identify and replace any faulty parts. This detailed parts list guarantees that every element required for full system functionality is available at the time of purchase.
The manual notes that each part carries a unique ID, aiding quick troubleshooting and ensuring safety compliance during installation and maintenance for all users!
Temperature Sensor Setup
The KE2 manual directs users to mount each 15 °C sensor on the evaporator coil. Connect colored leads to spade terminals, then run the ribbon cable to the controller. Verify continuity and calibrate via the on‑screen menu. Ensure grounding OK
Colored 15 Temperature Sensor Installation
The KE2 manual specifies that the controller kit contains a 3‑pack of colored 15 °C temperature sensors and six 90 mm spade connectors. Begin by selecting the sensor color that matches the coil segment you intend to monitor. Attach the sensor leads to the spade connectors, ensuring a tight, low‑resistance fit. Route the leads along the coil, avoiding sharp bends that could damage the cable. Once all sensors are connected, insert the ribbon cable into the designated port on the controller; this cable carries subcooling control signals. Verify that the cable is seated firmly and that all contacts are clean. Power on the system and use the on‑screen menu to confirm each sensor’s reading. If a sensor shows no value, check for loose connections or damaged leads. The manual recommends performing a continuity test with a multimeter before final installation. Finally, calibrate the sensors by comparing their readings to a reference thermometer and adjust the calibration offset in the controller’s settings to match the reference. Proper sensor installation ensures accurate temperature monitoring and optimal refrigeration performance.
Ribbon Cable and Air Temperature Sensors
The KE2 manual notes that the ribbon cable connects subcooling control, switching display between room temperature and dEF after defrost. Air temperature sensors feed data to the controller for accurate monitoring. Follow wiring diagram steps.
Subcooling Control via Ribbon Cable
The KE2 controller’s subcooling function relies on a dedicated ribbon cable that links the leaving‑liquid temperature sensor to the main board. According to the 2025 manual, the cable must be a 4‑wire, 0.2‑mm² flexible flat cable rated for 120 V AC, with each conductor insulated in a color‑coded scheme: green for ground, blue for signal, red for power, and yellow for return. The wiring diagram (page 18) shows the sensor connector on the back of the controller, where the ribbon plugs into a 4‑pin header. When the system enters a defrost cycle, the controller automatically switches the display from ambient temperature (room temp) to the differential (dEF) reading, allowing operators to monitor subcooling levels in real time. The manual stresses that the ribbon cable should be routed away from high‑current power lines to avoid electromagnetic interference; a minimum separation of 30 mm is recommended. If the cable is damaged or disconnected, the controller will trigger a fault code “SC‑01” and the display will revert to a default 0 °C subcooling value. By following these procedures, operators can maintain accurate subcooling control and prevent system inefficiencies. etc.now
Operational Prompts and User Interface
The KE2 console displays step‑by‑step prompts: select refrigerant, confirm sensor status, toggle SMART ACCESS, and acknowledge subcooling settings. Each screen uses concise icons and a 7‑segment LED for clarity. Supports duo‑language display
On‑Screen Prompts for Settings and Confirmations
When the KE2 controller powers up, the first screen requests the refrigerant type. The default display shows “404 (R‑404a)” and the user must press the “+” or “–” keys to select the correct refrigerant from the list on page 12. After confirming the choice, the console presents a prompt to press and hold the ENTER key for three seconds to lock the setting. The next screen asks the user to enable or disable KE2 SMART ACCESS. The interface offers a simple toggle: “ENABLED” or “DISABLED”, and a confirmation button appears at the bottom of the screen. Once a choice is made, a brief “Settings saved” message flashes for two seconds before the system returns to the main menu. For example, during the ribbon cable configuration, the screen will show “Enter cable length” and a numeric keypad appears for input. After each entry, a “Confirm” button appears; pressing it validates the input and moves to the next step. If an error occurs, an error message appears in red text, and the user must correct the input before proceeding. The console includes a 7‑segment LED for values and a small LCD for feedback.
Maintenance and Safety Considerations
The KE2 controller requires routine checks of the high‑voltage safety shield, ensuring it remains intact and properly seated. Inspect sensor connections, clean ribbon cables, and verify refrigerant type settings to prevent faults. and inspect ann. OK
High Voltage Safety Shield Usage
The KE2 controller incorporates a high‑voltage safety shield that must be installed and inspected before each operational cycle. The shield, typically a metal plate or enclosure, surrounds the internal power circuitry to prevent accidental contact with live components. During initial setup, verify that the shield is securely fastened to the controller housing and that all mounting screws are tightened to the manufacturer’s torque specifications. The shield should be free of cracks, corrosion, or any signs of wear that could compromise its insulating properties. Prior to powering the unit, perform a continuity test between the shield and the chassis to confirm that the protective barrier is intact and that no unintended electrical paths exist. If the shield is damaged, replace it immediately with a part that matches the original specifications. The safety shield also serves as a grounding point; ensure that the grounding wire is connected to a reliable earth connection in accordance with local electrical codes. During routine maintenance, inspect the shield for dust accumulation or moisture ingress, especially in humid environments, as these can degrade the shielding effectiveness. If the shield becomes contaminated, clean it with a dry, lint‑free cloth; avoid using solvents that could damage the metal or surrounding components. Finally, document each inspection in the maintenance log, noting the date, inspector, and any corrective actions taken. This systematic approach guarantees that the high‑voltage safety shield remains functional, thereby protecting personnel and preserving the integrity of the KE2 controller system. Document all steps for future reference.!!
Support and Contact Information
For assistance, call 800‑223‑2017 or toll‑free 800‑752‑7178. Email support@ke2therm.com. Visit www.ke2therm.com/support for manuals, FAQs, and service requests. Contact local distributor for on‑site help. Updates firmware firmware.ke2therm.com.
Manufacturer Contact and Service Numbers
Manufacturer: KE2 Therm Solutions, Inc.
Address: 4424 New Haven Ave;, Fort Wayne, IN 4424.
Toll‑free: 800‑752‑7178 (US).
Service: 800‑223‑2017.
Fax: 260‑428‑2533.
Email: support@ke2therm.com.
Website: www.ke2therm.com.
For firmware updates and downloads, visit manuals or firmware.
International: +1‑800‑223‑2017 (US), +1‑800‑752‑7178 (toll‑free).
For emergency service, call 1‑800‑223‑2017 or local distributor.
All support is available 24/7 via phone or email.
Please keep this information for future reference.
For training, schedule a session via our online portal at https://www.ke2therm.com/training. Warranty covers 2 years. For parts, order through distributor or online store; For firmware, check release notes at https://www.ke2therm.com/firmware/notes. For compliance, refer to UL and CSA certifications. For environmental compliance, consult our e‑mail.
For updates, subscribe to our newsletter at https://www.ke2therm.com/newsletter. For product documentation, visit https://www.ke2therm.com/docs. For technical support, use the online chat or call 800‑223‑2017. Refer to ISO 9001 cert. list.