Vallox Aito Kotilämpö
Vallox Aito Kotilämpö
The Aito Kotilämpö air heating unit can be installed directly in place of Valmet Kotilämpö without major changes to the duct network. It can also replace other air heating units, such as Aeromaster, Energiset, Himablock, ILA-15, Oilon Oiva, Parma 10 and Thermovent, but these may require minor changes to the duct network.
The unit’s annual efficiency of heat recovery is 77%. The DC fans with a 50% lower electricity consumption and the clearly improved heat recovery efficiency ensure that the Aito Kotilämpö air heating unit consumes considerably less energy when compared to the old units.
The ventilation part of the air heating unit features automatic heat recovery with a partial bypass, a maintenance reminder, a week clock, filters that clean air efficiently and integrated humidity and carbon dioxide sensors that boost the ventilation when necessary. Thanks to the defrosting automation, the efficiency remains high even in very cold weather and underpressure will not increase in the building.
It is also possible to connect an additional carbon dioxide sensor to Aito Kotilämpö, or an additional switch for boosting the ventilation or for the fireplace function. Ventilation is controlled via the MyVallox control panel, the free Vallox Cloud service, the home network or the house automation.
The additional heating part includes a six-row liquid circulation heating radiator that efficiently heats the home at a low circulating air flow without creating a draught. The efficiency of the radiator is controlled with the same control panel as the ventilation. There is a specific four-step control panel for adjusting the speed of the circulating air fan.
How does an air heating unit work?
The Vallox Aito Kotilämpö unit includes a 6-row liquid-circulated heating radiator in its air heating section. This enables the dwelling to be heated efficiently while maintaining comfort without drafts, even with a relatively low recirculation airflow rate.
The output of the heating radiator is controlled from the same controller used for ventilation. However, the recirculation air fan has its own four-speed controller, with all speed levels being continuously pre-adjustable.
The ventilation section features a counterflow heat exchanger, and the annual heat recovery efficiency of the unit is approximately 77%.
Ventilation is controlled using a MyVallox controller or via the home network, building automation system, or cloud service.
The unit can be connected to all heating systems, including low-temperature ground-source heat pump systems.
The unit is equipped with built-in carbon dioxide (CO₂) and humidity sensors, which automatically boost ventilation as needed in response to changes in CO₂ levels and indoor humidity.
The MC defrosting automation maintains a high heat recovery efficiency even in severe freezing conditions and does not increase negative pressure in the building.
Which unit is suitable as a replacement for an old air heating unit?
Replacing an air heating system with a conventional ventilation system is often expensive, so simply replacing the unit itself is usually a good solution.
The Vallox Aito Kotilämpö is suitable as a replacement for, among others, the following older air heating units:
- Valmet Kotilämpö
- Thermovent
- Himablock
- ILA-15
- Parma 10
- Aeromaster
- Oilon Oiva
- Energiset
The dimensions, layout, and duct connection arrangements of the units may vary between different manufacturers and models, so it is advisable to be prepared for minor modification work during installation.
Are spare parts available for Valmet Kotilämpö?
Vallox and service centres authorised by Vallox continue to provide the most common spare parts for Valmet Kotilämpö. The price of the spare parts of Kotilämpö can be found in the Vallox spare parts price list.
How is a new air heating unit installed?
The installation of an air heating unit is always the responsibility of qualified professionals. During installation, it is important to consider the heating system in use, the condition and insulation of the ductwork, water and electrical connections, the operation of the distribution box, and condensate drainage.
How does heat recovery work in the Aito Kotilämpö?
The annual heat recovery efficiency of the Aito Kotilämpö is approximately 77%.
The Vallox Aito Kotilämpö uses the same MyVallox Control controller as Vallox ventilation units. The supply air temperature displayed by the controller represents the temperature of the air leaving the heat recovery (HRV) core.
During the heating season, the controller does not display the temperature of the air being supplied to the recirculation air duct. Instead, an external sensor measures the room air temperature, and the heating coil aims to deliver recirculated air at the requested temperature.
Vallox Aito Kotilämpö Air Heating Unit and Power Outage
The Vallox Aito Kotilämpö air heating unit restarts after a power outage using the same settings that were active before the interruption.
In the Vallox Aito Kotilämpö, the liquid-circulated radiator is located in the lower section of the unit, which means that the risk of freezing is low unless the power outage lasts for several days and the building temperature drops significantly.
By opening the Aito Kotilämpö access door, you can check the temperature in the lower part of the unit and, if necessary, allow warm room air to reach the radiator.
If the Aito Kotilämpö displays a fault indication after a power outage, contact your nearest service provider.
Why does Vallox Aito Kotilämpö report an error during the defrosting cycle?
If the control panel of Aito Kotilämpö reports an error, check the main settings first.
- Defrosting method: Bypass, Indoor %Rh 0, and Outdoor air °C 20.
- Heating settings: Heating method Electrical resistor (Must never be turned off!) Post-heating None.
- Control settings: °C adjustment method Extract air and Humidity Automatic.
- 1/0 and bus settings: External sensor Setting: Air heating. Relay settings: Air heating.
If the error persists, carry out a heater test as follows: When at least 5 minutes has passed since the error message disappeared, check the supply air temperature (°C) from the temperature display of the At home mode and write it down. Next, test the additional heater. When the test has been on for a couple of minutes, you can exit the test. The supply air temperature should now be higher than previously in the temperature display of the At home mode. If this is not the case, the additional heating resistor or the relay that controls it is faulty. There is no need to carry out a post-heating test; in fact, the test cannot even be carried out, as the ventilation part of Aito Kotilämpö does not have a post-heating resistor.
Where can I find the nearest service provider and filter retailer?
Filter packages for the Vallox Aito Kotilämpö can be purchased from the Vallox online store.
The nearest authorized service provider can be found using our map service.
Where can I find the model number of my Aito Kotilämpö unit?
The model number of the Vallox Aito Kotilämpö is located inside the unit, on the inner wall.