EVD Evolution Twin - Uncategorized Carel - Free user manual and instructions
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| Product Type | Electronic Expansion Valve (EEV) Controller |
| Brand | Carel |
| Model | EVD Evolution Twin |
| Application | Control of twin electronic expansion valves in refrigeration systems |
| Power Supply | 24 VAC/VDC ±10% |
| Input Signals | 1 × NTC/PTC temperature sensor, 1 × pressure transducer (4-20 mA / 0-10 V) |
| Output Signals | 2 × stepper motor drives (for two valves), 1 × alarm relay (SPST) |
| Control Type | PID superheat control with adaptive algorithm |
| Display Type | Backlit alphanumeric LCD, 4 lines × 16 characters |
| Dimensions (W × H × D) | 96 × 96 × 85 mm (1/4 DIN) |
| Weight | Approximately 0.5 kg |
| Operating Temperature | 0 to 50 °C |
| Storage Temperature | -20 to 70 °C |
| Humidity | 5 to 90% RH non-condensing |
| Protection Rating | IP65 front panel, IP20 rear |
| Communication Ports | RS-485 Modbus RTU |
| Certifications | CE, UL, RoHS |
| Maintenance | Clean front panel with soft dry cloth; do not use solvents or water |
| Safety Precautions | Install in accordance with local electrical codes; disconnect power before servicing |
| Included Accessories | Mounting bracket, instruction manual, quick guide |
Frequently Asked Questions - EVD Evolution Twin Carel
What is the EVD Evolution Twin used for?
The EVD Evolution Twin is a controller for two electronic expansion valves (EEVs) in refrigeration systems, managing superheat to optimize efficiency.
How do I wire the power supply?
Connect a 24 VAC/VDC supply to terminals 1 and 2. Observe polarity for DC; for AC, polarity is irrelevant. Use a Class 2 transformer.
Can I use this controller with any expansion valve?
It is compatible with most bipolar stepper motor EEVs from Carel and other brands. Refer to the valve's datasheet for electrical compatibility.
How do I set the superheat target?
Access the parameter menu (press 'SET' for 3 seconds), navigate to 'SH' parameter, adjust to desired superheat (e.g., 5-10 K), and press 'SET' to confirm.
What does error code 'E1' mean?
Error E1 indicates a faulty suction temperature sensor. Check the sensor wiring and resistance (expected ~10 kΩ at 25 °C). Replace if defective.
How do I perform a manual valve test?
Go to the test menu (password 22), select 'VALVE TEST', then use the arrow keys to step the valve open/close. Observe the valve movement.
What is the maximum cable length for sensors?
For best accuracy, keep sensor cables under 30 meters. Use shielded twisted-pair cable and avoid running near power cables.
How do I reset the controller to factory defaults?
Press and hold 'UP' and 'DOWN' keys while powering on, then release when 'rES' appears. Confirm with 'SET'.
Can I connect this to a BMS system?
Yes, via RS-485 Modbus RTU. Configure the communication parameters (baud rate, parity, address) in the 'Mod' parameter group.
What maintenance does the controller require?
Regularly inspect connections and clean the front panel with a dry cloth. Do not expose to moisture or chemicals. No internal parts need servicing.
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USER MANUAL EVD Evolution Twin Carel
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Product information
Brand : Carel
Model : EVD Evolution Twin
Category : Uncategorized