VEX350T

Technical data

VEX350T

Unit data
Min. airflow
400 m³/h
Max. airflow
3,900 m³/h
Absorbed power 2.7 kW
Power supply 1 x 230 V + N + PE ~ 50 Hz
Max. phase current 13.5 A *
Weight
Operation-ready unit 530 kg
For transport into the location 245 kg**
Motor and motor control (MC) data
Motor type EC motor
Motor class in accordance with IEC TS 60034-30-2 IE4 (Super Premium Efficiency)
Voltage input 1 x 230 V
Current overload protection Built-in
Regulation Variable via motor control (MC)
Control signal

With integrated control system:
Modbus

For third-party control system:
0-10 V DC

* (power consumption is not sinusoidal)
** (excl. doors, heat exchanger and fan units)


  

Information requirements - ERP

Fan data  
Max. total efficiency (A-D) 67,5 %
ECO measurement set-up (A-D) A
Efficiency level requirements 62N (2015)
ECO efficiency level during optimal operating point 76.7N

Motor data (optimal operating point)
EC motor VSD Integrated
Absorbed power 1,.34 kW
Airflow 3,807 m3/h
Total pressure 777 Pa
RPM during optimal operating point 2,400 RPM

Conditions:
- Density = 1.2 kg/m3
- Pressure ratio < 1.11
- other points in acc. with EC327/2011 (see product instructions)


Filter options:

Filtration of supply air:

Panel filter
Dim.: 471 x 850  x 96 mm
Option: Prefiltration
Dim.: 471 x 850  x 48 mm
Panel filter Coarce 65% (G4) Panel filter Coarce 65% (G4)
Panel filter ePM10 65% (M5) Panel filter ePM10 65% (M5)
Panel filter ePM1 55% (F7) Panel filter ePM1 55% (F7)
Panel filter ePM1 80% (F9)  

 

Filtration of extract air:

Panel filter
Dim.: 471 x 850  x 96 mm
Panel filter Coarce 65% (G4)
Panel filter ePM10 65% (M5)
Panel filter ePM1 55% (F7)
Panel filter ePM1 80% (F9)

Data for internal heating and cooling/heating coils

Internal heating and cooling/heating coils for VEX350T

Electric heating coil (HE)

Small Large
Power rating 12.65 kW 22.76 kW
Min. airflow 594 m³/h (50 % heating)
1,770 m³/h (100 % heating)
594 m³/h (0-100 % heating)

Power supply 3 x 400 V + N + PE ~ 50 Hz 3 x 400 V + N + PE ~ 50 Hz
Max. phase current
18.3 A 32.9 A

Water heating coil (HW)

1 pipe row 2 pipe rows
Test pressure 900 kPa 900 kPa
Max. operating pressure 800 kPa 800 kPa
Face area 645 x 750 mm 645 x 750 mm
Number of pipe rows 1 2
Number of circuits 4 5
Connection dimension 28 mm 28 mm
Fin spacing 1.4 mm 2.0 mm
Weight (without fluid) 7.0 kg 9.6 kg
Water content 1.96 l 3.37 l

Cooling/heating coil (CW)

2 pipe rows
4 pipe rows
Test pressure 900 kPa 900 kPa
Max. operating pressure 800 kPa 800 kPa
Face area 645 x 750 mm 645 x 750 mm
Number of pipe rows 2 4
Number of circuits 8 22
Connection dimension 28 mm 28 mm
Fin spacing 2.0 mm 2.5 mm
Weight (without fluid) 9.7 kg 15.9 kg
Water content, fluid 3.25 l 6.02 l

Cooling/heating coil (DX)


 
Test pressure 4.500 kPa
Max. operating pressure 4.200 kPa
Face area 625 x 740 mm
Number of pipe rows 4 4
Number of circuits 16
Connection dimension 28 mm
Internal volume 2.8 l  

  

A precise calculation of the heating coil is recommended, to be carried out with calculation program EXselect/EXselectPRO, available on www.exhausto.com


Temperature efficiency

VEX350T - temperature efficiency

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 calculation software, EXselect.

Temperature efficiency VEX350T
The curve is intended as a guideline, and it is recommended that a calculation be performed using the calculation software EXselect for the individual project.

stiplet streg
Efficiency with condensation:
Extract air = 20°C/55 RH
Outdoor air  = -10°C/50 RH
Balance between supply air/extract air = 1,0
kort-lang-stiplet-streg
Efficiency without condensation with imbalance:
Extract air = 25°C/28 RH
Outdoor air = 5°C/50 RH
Balance between supply air/extract air  = 0,8
fed streg Efficiency without condensation in acc. with EN308:
Extract air = 25°C/28 RH
Outdoor air = 5°C/50 RH
Balance between supply air/extract air = 1,0

Calculation

The temperature efficiency of the VEX units is shown at different airflow ratios, calculated as:


t2,1
t2,2
t1,1
=
=
=
Temperature of outdoor air (fresh air)
Temperature of supply air
Temperature of extract air
Extract air = 25 ºC / 30 % RH
Outdoor air (fresh air) = 5 ºC / 50 % RH

Temperature efficiency is stated in accordance with EN308 for dry heat recovery and is increased by condensation.
Dimensional drawings VEX350T

VEX350T, Left (unit dimensions in mm)

Dimensions VEX350T L

1.1 Extract air 1.2 Exhaust air 2.1 Outdoor air 2.2 Supply air
 

VEX350T, Right (unit dimensions in mm)

Dimensions VEX350T R

1.1 Extract air 1.2 Exhaust air 2.1 Outdoor air 2.2 Supply air

Add all about the product series VEX350T

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Odensevej 76
DK 5550 Langeskov

Tel +45 6566 1236
E-mail: export@exhausto.dk

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