DESCRIPTION |
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The VUT PE EC air handling units with the electric heater are the fully-featured ventilation units ensure air filtration, fresh air supply and stale air extract.
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The heat energy contained in extract air is transferred to supply air through the plate heat exchanger.
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The units are suitable for integration into various ventilation and air conditioning networks requiring cost-effective solutions and controllable ventilation.
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The integrated EC motors reduce energy demand by half up to three-fold and provide high air flow and low noise level.
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All the models are compatible with round 160 (150), 200, 250, 315 and 400 mm air ducts.
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MODIFICATIONS |
CASING |
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The aluzinc casing is internally filled with 20 mm mineral wool for VUT 350, 600, 1000 PE EC and 25 mm for VUT 2000, 3000 PE EC units.
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FILTER |
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- Supply filter F7 can be supplied with the few models.
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MOTOR |
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HEAT EXCHANGER |
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HEATER |
CONTROL AND AUTOMATION |
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The unit includes an integrated automation and a multifunctional control panel with a remote LCD control panel.
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The delivery set includes a 10 m connecting cable for connection of the unit to the control panel.
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The freezing protection function is performed by means of the bypass and the heater.
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In case of a freezing danger according to the temperature sensor readings the bypass damper is opened to let supply air flow through the bypass duct and not come in contact with the heat exchanger.
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The heater warms up supply air up to the required temperature and meanwhile the heat exchanger is heated by the warm extract air.
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After the heat exchanger defrosting the bypass damper closes the bypass duct and the air handling unit reverts to the standard operation mode.
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The VUT PE EC unit incorporates a LCD control panel
with a colour sensor display PU SENS 01.
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VUT PE EC CONTROL AND PROTECTION FUNCTIONS |
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Control panel:
- Turning air handling unit on/off, room temperature indication, low-medium-high speed selection.
- Opening/closing bypass for summer ventilation; timer mode activation, setting week scheduled operation (applicable only for PU SENS 01).
- Supply and exhaust fan speed stage adjustment from 0 up to 100% during the system set-up.
- Set indoor air maintaining by feedback of the sensor on the control panel.
- Overheating protection for the electric heating elements according to feedback of the duct temperature sensor as well as signal from the two thermal switches, one of self-resetting type actuated at +60°C and the other one of manual reset type actuated at +90°C.
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- Cooling of the electric heating elements at the end of the heating cycle;
- Actuating external air dampers.
- Maintaining set indoor or room air temperature.
- Control according to the duct humidity sensor feedback HV1 (special accessory) or according to the humidity sensor in the control panel.
- Filter clogging control by filter timer.
- Ventilation system shutdown at signal from the fire alarm system.
- Cooler connection possibility.
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