Technical data

Technical data, VEX260

Air handling unit data
Min. airflow 1,200 m³/h
Max. airflow 5,540 m³/h
Power consumption 5.0 kW
Electrical Supply 3 x 400 V + N + PE ∼ 50 Hz
Max. phase current 18 A (Power consumption is taken from 2 phases and is not sine shaped)
Max. neutral current  23,5 A (dimensioning current)
Weight of operational air handling unit 525 kg
Weight of air handling unit for transport Fan sections: 2 x 117 kg, Rotor section: 127.5 kg 

Ambient temperature (operating)

At temperatures below -25˚C (with outdoor installation), use of a thermostatically controlled heater in automated control box is recommended.

-30°C to +50°C 
Rotor pinion - stepper motor:
Voltage 230 V
Phase current 0.2 A
Power consumption 45 W
Overcurrent protection Built in
Control (built in rotation monitor) Infinitely variable from 0 to 10 rpm on the rotor

Motor and motor control (MC) data
Motor type EC motor
Motor class in accordance with IEC TS 60034-30-2 IE5 (Ultra Premium Efficiency)
Voltage input 1 x 230 V
Current overload protection Built-in
Regulation Variable via motor control (MC)
Control signal with control system Modbus
Control signal with third party control system 0 - 10 V DC
Fluid temperature (air) -40°C....+40°C
Ambient temperature (operating) -30°C....+50°C 

Data according to Ecodesign Directive

Fan data

Max. total efficiency (A-D) 57.1 %
ECO measurement set-up (A-D) A
Efficiency level requirements 62N (2015)
ECO efficiency level during optimal operating point 67.2N


Motor data (optimal operating point)

EC motor With motor controller
Power consumption 2.36 kW
Airflow 4551 m3/h
Total pressure 1065 Pa
RPM during optimal operating point  3078



- Density = 1.2 kg/m3

- Pressure ratio < 1.11

- other points in acc. with EC327/2011 (see product instructions)

Temperature efficiency

Temperature efficiency, VEX260

VEX260 with standard rotor


VEX260 with highly efficient rotor

VEX260 High efficient rotor


The temperature efficiency of the VEX units is 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
Extract air = 25 ºC
Outdoor air (fresh air) = 5 ºC

Temperature efficiency is stated in compliance with EN308 for dry heat recovery and is increased by condensation.

Dimensional sketches

Dimensional sketches, VEX260

VEX260 - Fan location 1, here shown as LEFT

(air handling unit measurements in mm)

VEX260 - Fan location 2, here shown as LEFT

(air handling unit measurements in mm)

1) Allow a distance for servicing in front of the unit that is equivalent to the depth of the air handling unit.
2) Allow a min. of 200 mm free height for service.
*The base height is factory-adjusted to 200 mm. The height can be adjusted between 150–240 mm.

Cooling and heating coils

Cooling and heating coils, VEX260 

The following cooling and heating coils are suitable for VEX260

Type Model
HE electric heating coil  HCE260
HW water heating coil HW040x080
CW cooling coil (water)  CW040x080I
DX cooling/heating coil DX040x080

Add all about the product series VEX260


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Vex overview

VEX Summary

Get a quick overview of our entire range of compact VEX air handling units with heat recovery.

View the VEX summary here