Evco
EV3B23N7
EV3 Series • Refrigeration Controller
Quick Info
Type
Refrigeration
Application
Bottle Cooler
Probe Inputs
1
Relay Outputs
2
Panel Size
32x74 mm
Output Functions
R1
Compressor
R2
Alarm
Basic controller with alarm output for temperature monitoring
Technical Specifications
Display & Interface
| Display Type | LED |
| Display Digits | 3 |
| Buttons | 3 |
| LED Indicators | Compressor, Alarm |
Power Supply
| Voltage | 230V AC |
| Voltage Range | 115-230V AC |
| Frequency | 50/60Hz |
| Power Consumption | 2VA |
Sensor Inputs
| Probe Inputs | 1 |
| Probe Type | NTC |
| Temp Range | -40 to 105°C |
| Accuracy | ±0.5°C |
Relay Outputs
| Relay Outputs | 2 |
| Relay Rating | 16A (Comp) / 8A (Alarm) |
Physical
| Panel Size | 32x74 mm |
| Depth | 60 mm |
| IP Rating | IP65 (front) |
| Weight | 85 g |
Operating Conditions
| Operating Temp | -5 to 50°C |
| Storage Temp | -20 to 60°C |
Wiring Terminals
| Terminal | Function | Type | Wire Color |
|---|---|---|---|
| 1 | Power L | Input |
brown
|
| 2 | Power N | Input |
blue
|
| 3 | Probe (+) | Input |
red
|
| 4 | Probe (-) | Input |
white
|
| 5 | Comp COM | Output |
black
|
| 6 | Comp NO | Output |
black
|
| 7 | Alarm COM | Output |
gray
|
| 8 | Alarm NO | Output |
gray
|
Important: Always disconnect power before wiring. Verify terminal numbers with the actual controller label before connecting.
Parameter Settings
| Code | Parameter | Range | Default | Description |
|---|---|---|---|---|
| SP | Setpoint | -40 to 105 | 5 °C | Temperature setpoint |
| dF | Differential | 0.1 to 20 | 2 °C | Switching differential |
| AH | High Alarm | -40 to 105 | 15 °C | High temperature alarm |
| AL | Low Alarm | -40 to 105 | -5 °C | Low temperature alarm |
| Ad | Alarm Delay | 0 to 120 | 30 min | Alarm activation delay |
Error Codes
E1
Probe fault
Solution: Check probe wiring
Hi
High alarm
Solution: Temperature above AH limit
Lo
Low alarm
Solution: Temperature below AL limit
Frequently Asked Questions
Relay energizes when temperature exceeds AH or drops below AL after delay
Alternative Models (Cross Reference)
Dixell XR10CX
Eliwell EW Plus 902
LAE AT2-5BS4E
Manufacturer Information
Brand: Evco
Country: Italy