VEX340H CMEV air handling unit

VEX340H

CMEV air handling unit

A VEX air handling unit with counterflow heat exchanger that has a high temperature efficiency and variable adjustable EC motors, which ensures very low energy consumption.
VEX340H
An air handling unit with counter flow heat exchanger that has a high temperature efficiency and variable adjustable EC motors, which ensures very low energy consumption.

The VEX340H is ideal for residential ventilation, where the air is separated via the ventilation system, removing the risk of odours and humidly being transferred.

The VEX340H size enables it to be transported through a 90 x 200 cm door opening.

In principle, EXHAUSTO VEX units are designed for use in comfort ventilation - i.e. under ordinary operating conditions.

Where ventilation solutions are required for rooms with high air humidity - e.g. due to humidification, we recommend you make a test calculation with one of our calculation programs. If the calculation shows a risk of condensation after the heat exchanger, an assessment must be made whether the operating conditions can be changed, or whether the unit must be modified to allow condensate to drain off.

Contact EXHAUSTO for advice on this.

SPLIT:
For some projects, the space conditions can make it difficult or impossible to transport the unit. Therefore, VEX340H can be ordered as SPLIT. This means that the unit is built and tested at the factory as usual - just without sealing. Therefore, the unit can be easily disassembled at the installation site, carried in parts, assembled, sealed, and commissioned.

Motor class in accordance with IEC TS 60034-30-2 Current overload protection Connection direction Type of exchanger

IE5 (Ultra Premium Efficiency)

Built-in

Horizontal

With plates

References Max. Total efficiency (A-D) (%) Efficiency level requirements ECO efficiency level during optimal operating point Overload protection
VEX340H

58,1

62N

76,2N

Built-in

Conditions:

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

Voltage input Regulation Control signal with control system Control signal with third party control system Fluid temperature (air) Ambient temperature range

1 x 230 V

Variable via motor control (MC)

Modbus

0-10 V DC

-40°C....+40°C

-30°C....+50°C

VEX340H
A (mm) B (mm) C (mm) Ø connection (fresh air or exhaust) (mm) Ø connection (discharge or air supply) (mm) Weight (kg) Weight for transport

1765

946

1907

400

400

450

284 kg (excl. doors, fan units, bypass section, counter flow heat exchangers and filters)

Minimum airflow Max. airflow ErP (m³/h) Max. airflow (m³/h)

400

2325

2450

Frequency (Hz) Max. electrical output of unit (kW) Voltage (V) Maximum current - unit (A)

50

1,8

1x230

12,5

MECHANICAL PERFORMANCE:

According to ds/en 1886 and certified by Eurovent

  • Casing strength: D1 (M)
  • Leakage at negative pressure of -400 Pa: L1 (M)
  • Leakage at positive pressure of +700 Pa: L1 (M)
  • Filter bypass leakage: F9 at negative and positive pressure
  • Thermal transmittance: T2 (M)
  • Thermal bridging factor: TB3

An energy label that states the energy class of the unit in relation to defined operating conditions is available via our product calculation programs.

The motor sections are mounted in vibration dampers, which reduces noise in the ducts and eliminates the need to fit flexible connections between the unit and the duct system.

The motor sections can be extracted for easier servicing.

The motors are of type EC and are extremely efficient. They comply with the requirements of the Ecodesign Directive.

EXstream performance

The unit is equipped with EXHAUSTO’s EXstream fan wheel, one of the market's leading fan wheels in terms of low energy consumption and low noise level.

The easily accessible connection box with built-in supply isolator and circuit breakers ensures easy access for connection and adjustment.

The panel filters are easy to replace and can be ordered as Coarse 85% (M5) or ePM1 55% (F7) according to EN779.

Filter size: 716 x 836 x 96 mm.

VEX340 is supplied as standard on a mounting base with feet.

The design is very flexible and the unit can be ordered as a LEFT or RIGHT model.

The unit can also be ordered as an outdoor model. The outdoor unit has a fitted cover that protects it against wind and weather.

High-efficiency counter flow heat exchangers can suffer icing, especially if the extracted room air is humid. When the energy from this extracted air is used (when the air cools), the moisture condenses to water vapour, which collects in the heat exchanger.

The high efficiency means that some areas inside the heat exchanger become very cold and in these areas condensed water will freeze and form ice. This can block the air flow.

To ensure EXHAUSTO counter flow heat exchangers can operate in areas that have temperatures below -3 °C EXHAUSTO has developed a return air system. When ice begins to form inside the counter flow heat exchanger, the VEX340H control system circulates up to 30 % of the warmed air back into the cold supply air. This raises the temperature of the outdoor air and the problem of icing is reduced.

Air regulation – there are seven different air regulation methods:

Airflow control

2. Constant airflow

Constant pressure regulation of extract air

3. Constant pressure regulated extract air with preset supply air

5. Constant pressure regulated extract air with slave-controlled supply air

Constant pressure regulation of supply air

4. Constant pressure regulated supply air with preset extract air

6. Constant pressure-controlled supply air with slave-controlled extract air

Constant pressure regulation of both extract air and supply air

7. Constant pressure regulation of both extract air and supply air

8. External control of fan speeds

NB! This function is only active for air regulation methods 2 and 5.

Products and accessories references

Documents

Showing 1 - y of document
  • VEX340H ECOdesign declaration
    Certificates and Declarations
    342 KB
  • VEX, Siphon - pressure side, installation guide
    Instructions
    641 KB
  • VEX340 transport instructions
    Manuals
    701 KB
  • VEX340 PHCE-HK Electric preheater
    Instructions
    5 MB
  • VEX, Siphon - suction side, installation guide
    633 KB
  • VEX, SiphonHE - frost protection, installation guide
    598 KB
  • VEX340-370, order form
    Technical & Business documentation
    280 KB
  • VEX340H-X without controls, mechanical instruction
    Manuals
    3 MB
  • VEX340H-X without controls, electrical instruction
    Manuals
    2 MB
  • VEX340H with EXact2, mechanical instruction
    Manuals
    3 MB
  • VEX340H with EXact2, electrical instruction
    Manuals
    2 MB
  • EXact2 HMI2 for VEX300, instruction
    Manuals
    6 MB
  • EXact2 HMI2 for VEX300, menu guide
    Manuals
    1 MB
  • VEX, assembly on a METU rail
    Manuals
    358 KB

1 software