VEX350H

Technical data

VEX350H

 

Unit data:
Min. airflow 780 m³/h
Max. airflow 3,940 m³/h
Power consumption 2.9 kW
Power supply 3 x 400 V + N + PE∼50 Hz
Max. phase current 11.2 A (Power consumption is taken from two phases and is not sinusoidal).
Max. neutral current 15 A (Dimensioned current)
 
Operational-ready unit weight 635 kg
Weight for internal transport 260 kg heat exchanger section
150 kg fan section (qty. 2)
  75 kg base

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 
 
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 VDC
Fluid temperature (air) -40°C to +40°C

Fan data  
Max. total efficiency (A-D) 60,0 %
ECO measurement set-up (A-D) A
Efficiency level requirements 62N (2015)
ECO efficiency level during optimal operating point 74,4N

 

Motor data (optimal operating point)
EC motor With motor controller
Power consumption 1.25 kW
Airflow 3279m3/h
Total pressure 826 Pa
RPM during optimal operating point  2902

 

 Conditions:
- Density = 1.2 kg/m3
- Pressure ratio < 1,11
- other points in acc. with EC327/2011 (see product instructions)

Capacity curves

VEX350H
 

VEX350H - 100% heat recovery (winter operation)
 

VEX350 kapacitetskurve uden bypass

Capacity curve with panel filter Coarse 85% or bag filter ePM10 60% (M5)
SFP curve
Operating curves
A: Pressure loss supplement with panel filter ePM1 55% or bag filter ePM1 60% (F7)
B: Pressure loss supplement for heating/cooling coil
 

VEX350H - 0% heat recovery (summer operation)
  

VEX350 kapacitetskurve med bypass 

Capacity curve with panel filter Coarse 85% or bag filter ePM​10 60% (M5)
SFP curve
Operating curves
A: Pressure loss supplement with panel filter ePM1 55% or bag filter ePM1 60% (F7)
B: Pressure loss supplement for heating/cooling coil

 

To calculate capacity data use the product selection tools Quickselect and EXselect.

Total energy consumption is divided equally between the extraction and supply air fans.

Power consumption with VEX: P1(W) = SFP (J/m3) x qv (m3/s).

Temperature efficiency

VEX350H

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

VEX350 temperaturvirkningsgrad
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 = Temperature of outdoor air (fresh air)
t2,2 = Temperature of supply air
t1,1 = Temperature of extract air
Sound data

VEX350H
  

VEX350H LWA1 - Suction side
  

VEX350 lydkurve sugeside

VEX350H LWA2 - Pressure side
 

VEX350 lydkurve trykside

 

VEX350H LWA3 - Surroundings
 

VEX350 lydkurve omgivelser

 

Sound output level
Suction side (outdoor air/extract air):
LW1 = LWA1 + KW
LWA1 read

Sound output level
Pressure side (supply air/exhaust air):
LW2 = LWA2 + KW
LWA2 read

Sound output level
Surroundings:
LW3 = LWA3 + KW
LWA3 read

Sound output level at 1 m distance
Surroundings:
LpA3 = LWA3 + KpA
LWA3 read

 

  KW(dB) KpA
dB(A)



Hz Range 63 125 250 500 1K 2K 4K 8K
LWA1 I  -5 -8 -13 3 -9 -15 -21 -34
 II 3 -1 1 0 -7 -14 -23 -33
LW2  I -9 -11 -13 -1 -4 -8 -14 -23
 II -6 -7 -1 -4 -4 -7 -16 -23
LW3  I 17 5 1 1 -9 -16 -23 -30 -18
 II 14 2 7 -6 -12 -18 -23 -24 -18

Measurement arrangements

Illustration lydeffektivitet VEX350360

Please refer to Assumptions for sound measurements, link in the right side of the page.
To calculate sound data please see our product selection tool.


Dimensional drawings

VEX350H

VEX350H - Left

VEX350L målskitse

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

 

All dimensions in mm.

1) Allow a distance for service in front of the unit that is equivalent to the unit depth
2) Allow min. 200 mm free height for service

The doors can be removed for internal transport, allowing the heat exchanger sections to be moved through a 900 x 2,000 mm opening.


VEX350H - Right

VEX350R målskitse 

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

All dimensions in mm.

1) Allow a distance for service in front of the unit that is equivalent to the unit depth
2) Allow min. 200 mm free height for service 

The doors can be removed for internal transport, allowing the heat exchanger sections to be moved through a 900 x 2,000 mm opening.

Outdoor model with cover

With outdoor installation, the unit must be secured to the building at the points shown in the instructions. 

 

VEX350H split tegning

 

Condensation outlet

The condensation outlet (DN32) can be lead out in all four directions. EXHAUSTO offers a complete water trap and heating cables for the outlet as accessories. 
(The condensation pipe is not supplied by EXHAUSTO).

= = = = Optional channels


SPLIT unit

VEX350H

If the VEX350 needs to be transported through passages that would otherwise be too small for it, if it can be ordered as a SPLIT model.

As a SPLIT model, the unit is delivered assembled but not sealed, so that it can be split into smaller sections on the site and transported in smaller sections to the location where it is to be installed.

This work must be carried out by a certified EXHAUSTO service technician.

VEX350360 Split


Cooling and heating coils

The following cooling and heating coils are suitable for VEX350/360

Type Model
HE electric heating coil  HE05x08 - three sizes 9/12/15 kW
HW water heating coil HW050x080
HW070x080
CW cooling coil (water)  CW050x080I
CW065x100U
DX cooling/heating coil DX050x080

Add all about the product series VEX350H

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Export Requests:
EXHAUSTO Export
Odensevej 76
DK 5550 Langeskov

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

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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