Why is my Komfovent DOMEKT unit inoperative?
If your Komfovent Controller unit is inoperative: * Make sure the feeding cable is plugged into an electrical outlet. * Check all safety fuses of the automatic control block. If needed, replace the faulty fuses with new ones of the same electrical parameters (fuse parameters are in the wiring diagram).
What to do if my Komfovent Controller blinks 8 times per second?
If your Komfovent Controller blinks 8 times per second, it could be due to the following reasons: * The supplied air is too cold or too hot. Check the temperature and season settings, as well as the heat exchanger and heater operation. * The supply air temperature sensor is not connected or has broken down. Check the sensor connections or replace the sensor.
How to fix reduced airflow in my Komfovent DOMEKT?
If the air flow is reduced in your Komfovent Controller: * Check the set ventilation intensity level. * Inspect the condition of the air filters and replace them if needed. * Verify the adjustment of the supply/exhaust air diffusers. * Check for any clogging in the outside air intake grille. * Ensure the system ducting is not damaged and free of extraneous objects.
Why is the supplied air too cold from my Komfovent DOMEKT Controller?
If the supplied air from your Komfovent Controller is too cold: * Check the temperature setting. * Verify if the 'Winter' mode is activated on the panel. * Check the control panel for any failure indications. * Inspect fuse F2 located on the automatic box.
What to do if my Komfovent DOMEKT Controller blinks 3 times per second?
If your Komfovent Controller blinks 3 times per second, it could indicate several issues: * The belt is broken, there is a failure of the rotor motor, or there is a rotor sensor issue. Check the rotor drive and rotation sensor condition. * The temperature of the air passing through the plate heat exchanger dropped lower than the allowable level. Check the bypass damper condition and actuator performance; decreasing the ventilation level is recommended. * The heater is disconnected due to low airflow. The protection restores automatically when the heater cools down. Increasing the ventilation intensity level is recommended. * The electric heater overheating protection is on. Restore emergency overheating protection with the RESET button on the heater, only after clarifying and elim...
Connects the air handling unit to the electrical power supply.
Provides guidance for diagnosing and resolving unit issues.
Electrical wiring schematic for DOMEKT REGO models.
Electrical wiring schematic for specific DOMEKT REGO models.
Electrical wiring schematic for DOMEKT REGO EC/HE-EC models.
Electrical wiring schematic for DOMEKT REGO VW/PW/HW-EC models.
This document provides an electrical installation and operation manual for Komfovent Domekt series air handling units with a C4 controller. It covers essential steps for setting up and managing the ventilation system, ensuring proper functionality and user convenience.
The installation process for Komfovent Domekt air handling units must be carried out by qualified specialists to ensure safety and optimal performance. Key requirements include maintaining a minimum distance of 20 cm between control cables and power cables to prevent interference.
Electric Power Supply Connection: The air handling unit operates on 230V AC, 50 Hz. It requires connection to a grounded socket with appropriate capacity, as detailed in the wiring diagram. The unit must be connected to a stationary installation using a solid cable, protected by a 10A circuit breaker and a maximum 30mA current leakage relay. Before connecting, it is crucial to verify that the earthing system is properly installed according to electrical safety standards.
Control Panel Installation: The control panel should be installed in a room where the ambient temperature ranges from 0°C to 40°C and relative humidity is between 20% and 80%. It must be protected from vertically falling water drops (IP X2). The installation height should be at least 0.6 meters from the ground. The control panel connects through a hole in its backside and is secured by screwing it to the fastening surface. The cable connecting the control panel to the air handling unit should not exceed 20 meters in length.
Kitchen Hood Connection: Komfovent Domekt REGO 200VE air handling units offer the possibility of connecting a kitchen hood. The cable for this connection, marked as KH in the functional diagram, is routed through a rubber gasket in the unit's wall and connected to the J11 connection box. It is vital to follow the numeration in the wiring diagram for correct connector connection. When disconnecting unit sections, avoid pulling by the wires or cables. Always switch off the unit and shut off the power supply before performing any operations inside.
Control Contacts Connection: Units with the C4 controller allow for the connection of additional devices such as switches, sensors, timers, or buttons. An external cable for this function is brought out from the unit. Detailed connection possibilities are provided in the operation manual.
The control panel serves as the remote interface for managing the air handling unit. It can be installed in any user-friendly location, providing convenient access to unit settings and operational modes. Light diodes on the panel indicate the current operation status of the unit, while switches are used to set ventilation intensity and operating modes.
Unit Control: The control panel features several key indicators and switches:
Control Panel Indications: The control panel uses various symbols and light indications to communicate the unit's status:
Ventilation Intensity Setting: The air handling unit offers three ventilation intensity levels, adjustable via switch (4) on the control panel: minimum, normal, and maximum. The normal (second) ventilation intensity level for both supply and exhaust fans can be customized based on the specific ventilation system project. For AC fans, adjustment is in steps, while for EC fans, it's gradual from 20% to 100%. Desired ventilation levels are set using potentiometers located on the wall of the automatic box inside the unit.
Temperature Setting: The desired supply air temperature is set using a screw potentiometer located on the wall of the automatic box inside the unit.
"Winter / Summer" Mode: Switch (3) on the control panel allows selection of the unit's operating mode:
"OVR" Function (Override): The "OVR" function provides remote control of the unit by an additional external device. When activated, it overrides the current operating mode, causing the unit to operate at a predefined intensity.
Applications of the "OVR" function include:
Activation of the "OVR" Function: The "OVR" function can be activated in two ways:
The "OVR" mode activation procedure involves:
Configuration of Automation Functions: Switches on the automatic box allow configuration of the heat exchanger type, heater, fan, and "OVR" function mode. These settings take effect only after rebooting the power supply.
This section provides guidance for resolving common issues with the air handling unit.
If the unit is inoperative:
If air flow is reduced:
If supplied air is too cold:
Important Notes for Troubleshooting:
Failures indicated on the control panel, possible reasons and their elimination:
Unit with rotary heat exchanger (Blinks 3 times per second):
Unit with plate heat exchanger (Blinks 3 times per second):
Unit with electric heater (Blinks 3 times per second):
Unit with water heater (Blinks 3 times per second):
Independent of unit type (Blinks 8 times per second):
Independent of unit type (Blinks every second):
Detailed information regarding unit maintenance inspection is available in the Installation and Maintenance Service Manual.
General| Power supply | 24 V AC/DC |
|---|---|
| Protection class | IP20 |
| Weight | 0.2 kg |
| Communication | Modbus RTU |
| Communication interface | RS-485 |
| Relative humidity | non-condensing |
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