VEX340H

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.