DESCRIPTION |
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The air handling units VUTR EH EC with an electric heater are the fully-featured ventilation units that ensure air filtration, fresh air supply and stale air extract.
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During the operation process the extract air heat is transferred to the supply air through the rotary heat exchanger.
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The units are used in ventilation and air conditioning systems installed in various premises that require reasonable energy saving solutions and controllable ventilation systems.
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EC motors reduce energy demand by 1.5-3 times and ensure high performance and low noise operation.
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The VUTR 400/700/900/1200/1500 EH EC units are compatible with round air ducts (Ø 160, 250 and 315 mm).
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The VUTR 2000 EH EC units are compatible with rectangular air ducts (Ø 500x300).
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CASING |
FILTER |
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The casing consists of a frame and three-layer 20 mm (VUTR 1500 and 2000 – 25 mm) thick panels made of zinc aluminium internally filled with mineral wool for reliable heat- and sound-insulation.
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Due to the specially designed removable side panels the unit requires little space for servicing and accessing to all the unit components.
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- The two integrated G4 filters ensure sufficient supply and extract air purification.

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MOTOR |
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The air handling units are equipped with high-efficiency electronically commutated (EC) direct current motors with an external rotor and backward-curved blades.
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These state-of-the-art motors offer the very best in energy efficiency today.
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In addition to that, EC motors combine high performance and optimum control over the entire speed range.
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The high efficiency (up to 90 %) is a definite advantage of EC motors.
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ROTARY HEAT EXCHANGER |
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The rotary heat exchanger is a short rotating cylinder filled with layers of corrugated aluminium tape packaged in a such way so as to enable free passage of the supply and extract air flows.
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As the cylinder rotates the aluminium tape contained in the heat exchanger is first exposed to the supply air stream and then - to the extract air stream.
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As a result the material undergoes repeated warming and heating cycles thereby transferring heat and humidity from the warm air stream to the cold one.
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Compared to plate-type devices a rotary heat exchanger demonstrates better efficiency and helps maintain a comfortable air humidity level while reducing frostbite danger to a bare minimum (tending to zero at normal temperature and humidity).
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HEATER |
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CONTROL AND AUTOMATION |
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- The VUTR EH EC A18 units are equipped with a pGD1 control panel.
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AUTOMATION FUNCTIONS |
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- Speed selection: low, medium, high.
- Speed is individually adjusted from 0 to 100 % for the supply and the extract fans.
- Filter maintenance indication.
- Alarm indication.
- Timer-based operation.
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- Week-scheduled operation.
- Supply air temperature control.
- CCU control.
- Air damper actuator controlling.
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MOUNTING |
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- The unit is designed for mounting to a horizontal plane, suspension to a ceiling or wall mounting by means of brackets.
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- Service access is from the left side panel (in air direction).
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CALCULATION OF AIR TEMPERATURE AT HEAT EXCHANGER OUTLET: |
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t = toutd + khr * (text - toutd) / 100,
where
toutd – outdoor air temperature [°C],
text – extract air temperature [°C],
khr – heat exchanger efficiency
(according to the diagram) [%]
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APPLICATION OPTIONS |
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