EvoAir C125T G1 Ventilation Unit
Item ID:37125
EAN: 7350070010809
EvoAir C125T G1 is a top-connected counterflow unit that is ideal in environments where unwanted air transfer must be avoided.
EvoAir C125T G1 is a compact MVHR unit with a counterflow heat exchanger, designed for installations where energy-efficient ventilation, separated airflows and reliable operation are important. The unit is manufactured in Älvsbyn and combines Acetec's many years of experience in ventilation with a well-designed industrial construction. It is built for the Nordic climate and stable year-round operation. EvoAir C125T G1 is suitable for both homes and commercial installations.
With the integrated counterflow heat exchanger, outdoor air and extract air pass each other in separate channels without the air streams mixing. The design provides effective heat recovery and is particularly suitable for installations where separation of supply and extract air is important. Under favourable operating conditions, temperature efficiency can be around 85–90%.

The unit has configurable right-/left-hand connections, providing good flexibility in design and installation. An integrated reheater, summer bypass for both supply and extract air and a built-in humidity sensor on the extract air are part of the design. The temperature in the heat exchanger is monitored and controlled automatically to prevent ice formation and ensure stable operation. With few moving parts, the design also makes service and maintenance easy. Combined with demand-controlled operation via EvoControl, this helps keep operating costs low.
PLEASE NOTE! We always recommend a preheater to ensure stable operation, especially at low outdoor temperatures. A water trap is also required for reliable condensate drainage.
Applications
EvoAir C125T is particularly well suited to installations where effective heat recovery needs to be combined with clearly separated airflows. Examples of suitable applications include:
- Workshops, wastewater treatment plants, technical spaces and garages
- Restaurant environments
- Multi-dwelling buildings and apartments
EvoControl Touch

EvoAir C125T G1 is supplied with EvoControl and a separate 4.3-inch touch display as standard – so you get a complete, user-friendly control solution straight away, with no need to buy a display separately.
The system connects to the network via cable for stable communication, and the EvoCloud cloud service is included as standard. With EvoCloud, you can control and monitor the unit remotely from your phone, tablet or computer – adjusting operation as needed, following measurements and history, and quickly checking the current operating status.
With Modbus TCP support, the unit integrates easily into a supervisory control or building management system.
Functions
- 4.3-inch touch display included as standard
- EvoCloud for control and monitoring via the cloud
- Remote management via phone, tablet or computer
- Timer and scheduling
- Pressure control
- Air quality control
- Humidity control
- Logging of measurements and history
- Plain-text display and parameters
- Flow diagram display
- Modbus TCP support
Some functions may require accessories.
Pressure and airflow chart

- CO2 air quality sensor room QFItem ID: 340099Siemens QPA 2000 CO2 room air quality sensor. Suitable for Acetec ventilation units. Connection cable between unit and sensor is not included.
- Damper 200 Type 4 with motor shelfItem ID: 380138Damper 200 type 4 with motor shelf
- Damper motor Fjäder 230V GPC321Item ID: 340098Damper motor for motor-driven circular dampers for Acetec ventilation units A50S–A900ST.
- Electric Heater Battery 200/1kw EKA NIS 200-1.0-1f KItem ID: 340240
- Electric Heater Battery 200/2kw EKA NIS 200-2.0-1f KItem ID: 340241
- Electric Heater Battery 200/3.6kw EKA NIS 200-3.6-3f KItem ID: 340242
- External grille 200 mmItem ID: 180240External wall grille in cast aluminium for outdoor air or exhaust air.
- Filter C125/C250 400x240x48 ePM1 55%Item ID: 380007
- Presence sensor Siemens PIR-TFTItem ID: 340114Siemens PIR-TFT-550-B presence detector is a very reliable detector with dual elements. Fits Acetec ventilation units with EvoControl.
- Pressure transmitter QBM 68.2525Item ID: 340097Pressure transmitter Siemens QBM 68.2525 for Acetec ventilation units with EvoControl. Connection cable between unit and sensor is not included.
- Temp sensor EvoControl & AVC-02Item ID: 399174Temperature sensor for room mounting. For room temperature control with EvoControl or AVC-02 control equipment.
- Water coil kit A170T/C125 EC CoolingItem ID: 399145Cooling water coil kit suitable for Acetec A170T and C125T EvoControl ventilation units.
- Water coil kit A170T/C125 EC HeatingItem ID: 399144Heating water coil kit suitable for Acetec A170T and C125T EvoControl ventilation units.
- Water trap ventilation 32mm C-serieItem ID: 280062Water trap for the C series, required to ensure correct condensate drainage.
- Cable EvoControl 15mItem ID: 399146Cable For Display Unit Suitable For Air Handling Unit And Dehumidifier With EvoControl.
- Circuit board EC EvoAir TacoItem ID: 399221Circuit board for Acetec EvoAir EvoControl.
- Damper motor GQD321.1AItem ID: 240012Damper motor GQD321.1A fits all dehumidifiers in the PD series.
- EvoControl Display Spare PartItem ID: 399178Display For Acetec EvoControl.
- Fan K3G225RE0703Item ID: 350018
- Filter C125/C250 400x240x48 ePM1 55%Item ID: 380007
- Humidity Sensor Evocontrol Pro Dehumidifier EvocontrolItem ID: 399188EvoControl
- PTC-Element B46-148-3 230VItem ID: 110000PTC-type heating coil. When replacing the heating coil, we recommend replacing all elements in the product. Always disconnect the power when working on your dehumidifier or unit.
- Relay main boardItem ID: 310068Relay for main board 24V fits main board AVC-02- AVC-01.
- Temp sensor A-serien 3000 mmItem ID: 340084Temperature sensor with a cable length of 3000 mm. Fits Acetec EvoAir ventilation units and EvoDry dehumidifiers.
- Warranty
- AG20AHU
- CE
- Yes
- EcoDesign
- Yes
- ModBus
- ModBus TCP/IP
- Control Equipment
- EvoControl Touch
- Control via App/Cloud
- Yes
- Flow range (l/s)
- 50-160
- Airflow range (m³/h)
- 180-576
- Suitable for living area up to (m²)
- 200
- Connection Options
- Top
- Adoptable Right/Left connection
- Yes
- Placement
- Floor/Wall
- Installation in cold environments
- No
- Duct Size (mm)
- 4x200
- Heat Exchanger
- Counterflow Heat Exchanger
- Output, Fan, nom (W)
- 2x170
- Output, Electric Battery, nom (W)
- Max 1250
- Connection Voltage (V)
- 1x230V
- Fuse (A)
- 10
- IP rating
- IP21
- Integrated electric heater
- Yes
- Electric Battery Kit Aft (accessory)
- No
- Electric heater kit Pre (accessory)
- Yes
- Water heater kit (accessory)
- Yes
- Cooker Hood (accessory)
- No
- Room CO2 sensor (accessory)
- Ja
- Duct CO2 sensor (accessory)
- Yes
- Duct humidity sensor (accessory)
- No
- Room humidity sensor (accessory)
- No
- Flow sensor (accessory)
- No
- Presence sensor (accessory)
- Yes
- Room temperature sensor (accessory)
- Yes
- Pressure sensor (accessory)
- Yes
- Depth (mm)
- 470
- Width (mm)
- 1003
- Height (mm)
- 747
- Weight (kg)
- 70
- Filter Class
- F7
- Surface/Material
- Zn-Al-Mg-coated steel
- Corrosion class
- C5





































