Last update: 8. 8. 2025
This manual is about the Big Magic ventilation unit, which is designed for controlled ventilation and optimization of the indoor climate of living spaces. The ventilation system allows heat and moisture recovery, filters the incoming air and helps maintain ideal indoor humidity level.
Please read this manual carefully before putting the unit into operation. Following the instructions and recommendations will ensure proper and safe operation of the unit.
The unit complies with Commission Regulation (EU) No 1253/2014 and Commission Regulation (EU) No 1254/2014.
The manufacturer reserves the right to make technical modifications and changes to this manual without prior notice.
| ⚠ | IMPORTANT NOTICE Please pay close attention to the text marked as such. Following these instructions is important for your safety and the proper operation of your Big Magic ventilation unit. |
The Big Magic ventilation unit is an air handling unit equipped with heat recovery and active moisture recovery control. It is designed for comfortable and energy-efficient controlled ventilation of family homes.
This unit provides controlled ventilation of living spaces with a required air volume between 50-450 m³/h and is operable at outdoor air temperatures from -20 °C to +45 °C. The unit is designed for use indoors where the relative humidity does not exceed 60 % at a temperature of 22 °C.
Follow all safety instructions in this manual. Failure to follow these instructions may result in personal injury or damage to the ventilation unit.
General safety principles
Installation and operation
Operation of the unit
Operation with fireplace
Maintenance and safety measures
The Big Magic ventilation unit provides continuous air exchange in the building, delivering fresh, clean air indoors. The heat recovery process takes place in the heat exchanger, where incoming air absorbs some of the heat and moisture from the exhaust air, which is removed from rooms with higher humidity and dirt concentrations, such as kitchens, bathrooms and toilets.
The fresh air flowing into living rooms such as living rooms, children's rooms and study rooms is not only thermally optimised but also undergoes filtration to remove dust particles and dirt. Exhaust air is also filtered to prevent dust from settling on the fan blades and to prolong the life of the equipment.
Thanks to the separated air currents, there is no mixing of exhaust and supply air, thus ensuring maximum hygienic ventilation quality.
The Big Magic unit is equipped with electronic bypass, which in summer allows for efficient cooling of the living space, especially during nighttime hours.
| 1 | Ambient | Outdoor air intake |
| 2 | Waste | Waste air exhaust |
| 3 | Fresh | Fresh air supply to the house |
| 4 | Indoor | Exhaust air extraction from the house |
The construction of the Big Magic is made of monolithic expanded polypropylene (EPP), which acts as thermal and noise insulation and eliminates the formation of thermal bridges.
The inlet and outlet flanges (⌀ 160 mm) are located at the top of the unit.
The front of the Big Magic unit has a coloured LED backlight to indicate its current status.
| Colour | Meaning of |
| Blue | The unit is switched on in normal operation This signalling can be switched off at the user's request |
| Yellow | Notice of necessity filter changes |
| Red | Error condition - the unit has detected a fault, a check is required |
The Big Magic ventilation unit is equipped with an enthalpic counter-current exchanger that not only transfers heat from the exhaust air to the supply air, but also allows the transfer of moisture.
This system helps to maintain an optimum humidity level indoors, contributing to a comfortable indoor environment. Thanks to this process, excessive drying of the air is prevented in winter, while in summer the transfer of moisture reduces the feeling of stuffiness in the living space.
The Big Magic ventilation unit is equipped with two energy-saving fans that provide efficient and smooth ventilation. These fans are equipped with integrated electronics that allow automatic power control and maintain a constant airflow regardless of changes in system pressure conditions.
Thanks to this technology, the unit optimises energy consumption, reduces noise and ensures stable and efficient operation at all times.
The Big Magic ventilation unit is equipped with class F7 / ePM1 60 % filters located on both the supply and extract air. These filters trap dust particles and other impurities, ensuring cleanliness and air quality.
The need to change filters is automatically indicated. The recommended replacement interval depends on the air quality at the installation site and ranges from 2 to 6 months.
Possibility to extend filtration
For better protection against odours and impurities, the basic filtration can be supplemented with an optional carbon filter, which is inserted directly into the unit under the supply air filter.
The unit alerts the user to the need to change filters in the following ways:
⚠ As soon as the filter change signal appears, replace the filters immediately, within a maximum of 30 days, otherwise the product warranty will be void, see warranty conditions.
Important safety instructions when changing filters
⚠ Do not insert your hands into the filter socket when changing filters - risk of injury!
⚠ Never use the unit without filters!
⚠ The device must be switched off for any maintenance or filter change!
| 1 | Plastic cover + filter socket cover |
| 2 | Original accessories - filters ePM1 60 % |
| 3 | Optional accessories - carbon filter |
Filter change procedure
⚠ Use only original filters supplied by the manufacturer. Do not add any custom pre-filters as they may adversely affect the performance of the unit.
If the filters are not changed regularly, they can become clogged, which has a negative impact on the entire system. The main problems include:
⚠ In extreme cases, comfortable ventilation may be disturbed or the unit may be irreversibly damaged!
Automatic mode is the default operating mode of the Big Magic unit, in which the system dynamically adjusts ventilation performance based on data from the connected CO₂ sensors.
How does Auto mode work?
CO₂ sensor configuration options
The automatic mode can be controlled using A1MCP control panels or by using the app.
In the Constant Power mode, the user continuously adjusts the desired ventilation power.
Constant power mode can be controlled via A1MCP control panels or by using the app.
In Stand-by mode, the Big Magic ventilation unit is in stand-by mode, but no air exchange is taking place. Nevertheless, all connected sensors are still active and their data is continuously evaluated.
The Boost function allows for short-term intensive ventilation when the Big Magic unit temporarily switches to the highest available fan power. This function is useful for example after showering, cooking or to quickly remove odours from the interior.
Boost mode features
Ways to activate Boost
The Boost length can be individually set when installing the unit. These values can be changed by the installation partner according to user requirements.
The Big Magic ventilation unit uses an electronic bypass to cool the interior at night during summer nights.
When it is activated, the exhaust fan stops and only the supply fan operates, creating an overpressure. This overpressure allows air to escape naturally through open windows or vents without using the heat exchanger. This prevents unwanted heating of the cooler outside air by the warm air being exhausted.
⚠ When activating this function, the windows must be open at least in the micro-ventilation position.
The function can be switched on or off at A1MCP control panels or by using the app. The length can be individually set when installing the unit. These values can be changed by the installation partner according to user requirements.
The Big Magic ventilation unit can ensure air circulation inside the ventilated building.
The unit adjusts the air flow inside the unit using a cylinder valve so that no fresh outside air is drawn in. The extracted air is driven by the fan back into the supply ducts. It is used in case of temporarily increased outdoor pollution. The cooling or heating function is maintained.
The function can be switched on or off at A1MCP control panels or by using the app. The length can be individually set when installing the unit. These values can be changed by the installation partner according to user requirements.
The A1MCP controller is a standard control panel designed to control Big Magic systems.
You can return to the home screen from anywhere by pressing the little house icon in the top right corner.
The initial screen displays the measured values:
On the bottom bar, you can select the control of individual functions, according to the scope of the installation:
On the screen, you can choose between operating modes ventilation:
The screen can be used to activate functions:
The configuration menu is called up by briefly pressing the icon in the upper left corner.
| LANGUAGE | Language settings | CZ / EN |
| BRIGHTNESS | Setting the display brightness | Fixed / Ambient according to ambient light level |
| SCREENSAVER | Setting the backlight off time | 0 - 600 s |
| HOMESCREEN | Setting the idle time to go to the home screen | 0 - 600 s |
| MODE | Setting the display colour mode | Light / Dark |
| EXCEEDING CO2 | Enabling the acoustic alarm for exceeding the High CO2 concentration limit2 | Off / On |
| TOUCH SOUND | Enable the acoustic response of the display touch. | Off / On |
| ARROW BACK | Return to the home screen. |
The Big Magic unit is designed to allow easy service access to all its components.
This creates the prerequisite for a long product lifetime, even if a component needs to be repaired or replaced, so that valuable natural resources are preserved for as long as possible.
If you still need to dispose of the product, take it to a designated collection point.
⚠ By disposing of this type of waste in violation of regulations, you are damaging the environment and putting yourself at risk of fines.
Over and above the statutory two year warranty, the Big Magic ventilation unit is covered by an extended warranty period of 5 years.
The manufacturer undertakes to repair the defective product free of charge for the extended warranty period of 5 years from the date of commissioning by a certified installation partner of the manufacturer.
Acceptance of the warranty is subject to compliance with all instructions in this manual. The main conditions include:
✅ Regular maintenance by an authorized service partner of the manufacturer once a year.
✅ Regular replacement of the original filters at the interval recommended by the manufacturer and indicated by the unit, no later than 30 days after the indication of the need for replacement.
✅ Persistent connectivity to Big Magic's Internet cloud services (except for short-term network outages).
⚠ The warranty does not cover the cost of unmounting and mounting of the defective product.
The warranty is valid if the following conditions are met:
⚠ In the case of a warranty claim, no unauthorised work may be carried out on the equipment without the prior written consent of the manufacturer.
The warranty is void if:
❌ The warranty period has expired.
❌ Unauthorised changes, modifications or interventions have been made to the equipment.
❌ Non-original parts not supplied by the manufacturer have been used.
❌ The equipment has been used unprofessionally or improperly.
❌ The equipment has been damaged by faulty connection, system contamination, natural disaster or power failure.
❌ Filters have not been replaced within 30 days of the indication of the need for replacement.
| Code | Meaning of |
|---|---|
| 1000 | Low battery backup voltage |
| 1001 | Electronics error - I2C sensor power supply |
| 1002 | Electronics error - motor power supply |
| 1003 | Electronics error - coprocessor |
| 1010 | BME280 FILTR2 indoor sensor error |
| 1011 | Sensor error BME280 FILTER1 ambient |
| 1012 | BME280 FILTR2 indoor sensor error |
| 1013 | Sensor error BME280 FILTER1 ambient |
| 1014 | BME280 reference pressure sensor error |
| 1015 | SHT40 ambient sensor error |
| 1016 | SHT40 waste sensor error |
| 1017 | SHT40 fresh sensor error |
| 1018 | SHT40 indoor sensor error |
| 1019 | Sensor error SDP810 diff. pressure on outdoor fan |
| 1020 | Sensor error SDP810 diff. pressure on indoor fan |
| 1110 | M1 fresh valve actuator calibration error |
| 1111 | M1 fresh valve actuator blocking error |
| 1120 | M2 indoor valve actuator calibration error |
| 1121 | M2 indoor valve actuator blocking error |
| 1130 | M3 waste valve actuator calibration error |
| 1131 | M3 waste valve actuator blockage error |
| 1140 | M4 ambient valve actuator calibration error |
| 1141 | M4 ambient valve actuator blocking error |
| 1200 | FAN1 fresh fan error, no speed |
| 1201 | FAN2 waste fan error, no speed |
| 20xx | Control panel no.xx communication error |
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