Technical data


Unit data:
Min. airflow at 250 Pa 215 m³/h
Max. airflow at 250 Pa
2,150 m³/h
Absorbed power 1580 W
Power supply 1x230 V + N + PE 50 Hz
Max. phase current

7.0 A

Operational-ready unit weight 286 kg
Fluid temperature (air) -20°C ....+35°C
Temperature, surroundings (operation) -25°C ....+50°C
Temperature, surroundings (transport and storage) -40°C ....+60°C
Filter selection:

ePM10 50% (M5)
ePM1 50% (F7)
ePM1 80% (F9) (duct-mounted filter box)

Standard filters:
Filter, supply air 
Filter, extract air


ePM1 50% (F7)
ePM10 50% (M5)

Cabinet data:

Corrosion class
Insulation class:
Cold bridge class
Density at 700 Pa overpressure:
Density at -400 Pa negative pressure: 

T3 (M)
TB3 (M)

ECO Design Directive data:

Fan data

Max. total efficiency (A-D) 65.6
ECO measurement set-up (A-D) A
Efficiency requirements 62N (2015)
ECO efficiency level during optimal operating point 82.6N

Motor data (optimal operating point)

EC motor With motor controller (VSD)
Absorbed power 0.768 kW
Airflow 2524 m³/h
Total pressure 654 Pa
RPM during optimal operating point 2,638

- Density = 1.2 kg/m 3
- Pressure ratio < 1.11
- Other points in acc. with EC327/2011 (see product instructions)

Dimensional drawings

CX3040, dimensional drawings 

Dimensional drawing, CX3040 Left (dimensions in mm) 



Dimensional drawing, CX3040 Right (dimensions in mm) 

CX3040R Dimensions

Temperature efficiency

Temperature efficiency, CX3040

The temperature efficiency and, to a lesser extent, the SFP/SEL values for a specific air handling unit are closely connected to the heat exchanger itself and depend upon the manufacturer. As suppliers can change from time to time, small changes in the technical data can occur, which is why it is always recommended that you perform a calculation for the particular project using our EXselectPRO calculation software.

The curve is intended as a guideline, and it is recommended that a calculation be performed using the calculation software EXselectPRO for the individual project

dashed line

Efficiency with condensation:
Extract air = 20 °C/55 % RH
Outdoor air = -10 °C/50 % RH
Balance between supply air/extract air = 1.0


Efficiency without condensation with imbalance:
Extract air = 25 °C/30 % RH
Outdoor air = 5 °C/50 % RH
Balance between supply air/extract air = 0.8
bold line
Efficiency without condensation in acc. with EN308:
Extract air = 25 °C/30 % RH
Outdoor air = 5 °C/50 % RH
Balance between supply air/extract air = 1.0


The temperature efficiency of the CX air handling units are shown at different airflow ratios, calculated as:
t2.1 = Temperature of outdoor air (fresh air)
t2.2 = Temperature of supply air
t1.1 = Temperature of extract air
Sound data

Sound data, CX3040

SOUND EFFECT LEVEL at airflow 2,070 m³/h and 250 Pa external pressure


To duct, outdoor air  61
To duct, supply air 79
To duct, extract air 62
To duct, exhaust air 78
For surroundings 51

* For precise sound data, please refer to our EXselectPRO product selection software.



Technical data for cooling and heating coils

Technical data for cooling and heating coils for CX3040

Integral water heating coil (HW)

Power rating 12.84 kW
Number of pipe rows  qty. 2
Number of circuits  qty. 1
Face area (H x W)  1370 x 190 mm
Connection dimension  DN15 (½")
Fin spacing  3.20 mm
Weight (without fluid) 11.4 kg
Water content 2.0 l

Duct-mounted preheating coil (PHE)

Power rating 11.0 kW
Minimum airflow  1075 m³/h
Steps  2 steps
Controller ON/OFF
Weight  46 kg

Duct-mounted heating coil (AHE)

Power rating 5.5 kW  11.0 kW
Minimum airflow    820 m³/h  1075 m³/h
Steps 1 step   2 steps
Controller 0-10 V 

1 step: ON/OFF
1 step: 10 V

Weight 43 kg   47 kg

Integrated cooling/heating coil (CCW)

Power rating 5.22 kW
Number of pipe rows  3 items
Number of circuits  6 items
Face area (H x W)  570 x 381 mm
Connection dimension  DN15 (½")
Fin spacing  2.50 mm
Weight (without fluid) 11.5 kg
Water content 2.8 l

Add all about the product series CX3040


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