kVent
kVent Series • HVAC Controller
Quick Info
Output Functions
Advanced ventilation controller with CO2/humidity control
Technical Specifications
Display & Interface
| Display Type | LCD |
| Display Digits | 4 |
| Buttons | 5 |
| LED Indicators | Fan, Heat, Cool, Alarm |
Power Supply
| Voltage | 230V AC |
| Voltage Range | 100-240V AC |
| Frequency | 50/60Hz |
| Power Consumption | 6VA |
Sensor Inputs
| Probe Inputs | 5 |
| Probe Type | NTC / PT1000 / 0-10V / 4-20mA |
| Temp Range | -40 to 80°C |
| Accuracy | ±0.3°C |
Relay Outputs
| Relay Outputs | 4 |
| Relay Rating | 8A/250VAC |
Physical
| Panel Size | DIN Rail 6M mm |
| Depth | 60 mm |
| IP Rating | IP20 |
| Weight | 200 g |
Operating Conditions
| Operating Temp | -10 to 55°C |
| Storage Temp | -25 to 70°C |
Wiring Terminals
| Terminal | Function | Type | Wire Color |
|---|---|---|---|
| L/N | Power 230VAC | Input |
brown/blue
|
| B1 | Supply Air | Input |
NTC
|
| B2 | Return Air | Input |
NTC
|
| B3 | Outside Air | Input |
NTC
|
| B4 | Exhaust Air | Input |
NTC
|
| AI1 | CO2 Sensor | Input |
0-10V
|
| AI2 | Humidity | Input |
0-10V
|
| K1 | Supply Fan | Output |
black
|
| K2 | Extract Fan | Output |
black
|
| K3 | Heating Coil | Output |
orange
|
| K4 | Cooling Coil | Output |
blue
|
| AO1 | Fan Speed | Output |
0-10V
|
| AO2 | Damper | Output |
0-10V
|
Important: Always disconnect power before wiring. Verify terminal numbers with the actual controller label before connecting.
Parameter Settings
| Code | Parameter | Range | Default | Description |
|---|---|---|---|---|
| ST | Supply Setpoint | 10 to 35 | 20 °C | Supply air target |
| RT | Room Setpoint | 15 to 30 | 22 °C | Room temp target |
| CO | CO2 Setpoint | 400 to 2000 | 800 ppm | CO2 limit |
| HU | Humidity Setpoint | 30 to 80 | 50 %RH | Humidity target |
| FM | Fan Mode | 0-3 | 1 | 0=Off, 1=Auto, 2=Low, 3=High |
| DV | DCV Enable | 0-1 | 1 | Demand control ventilation |
| HR | Heat Recovery | 0-1 | 1 | HRV/ERV enable |
Error Codes
Solution: Check B1
Solution: Check B2
Solution: Check B3
Solution: Increase ventilation
Solution: Replace filter
Frequently Asked Questions
Demand Control Ventilation - adjusts airflow based on CO2
Transfers heat/cool from exhaust to supply air
Alternative Models (Cross Reference)
Manufacturer Information
Brand: Carel
Country: Italy