VENTS VUT R TN H ЕС and VENTS VUT R TN EH ЕС

The heat recovery air handling units in sound- and heat-insulated casings are equipped with a rotary heat exchanger and a built-in heat pump. Air capacity up to 955 m³/h, heat recovery efficiency up to 85%.

Available modifications and technical parameters of VENTS VUT R TN H ЕС and VENTS VUT R TN EH ЕС

* optional

Detailed information on the VENTS VUT R TN H ЕС and VENTS VUT R TN EH ЕС at our website.

Description

The VUT R TN H EC/ VUT R TN EH EC are fully featured air handling units designed to ensure air filtration, fresh air supply and stale air extract. During operation the extract air heat is transferred to the supply air stream by the rotary heat exchanger. A ventilation system comprising a rotary heat exchanger and a heat pump can effectively supply fresh air at a comfortable temperature to the premises thereby reducing the load on the existing heating or cooling systems in the building. When the heat pump and the rotary heat exchanger work simultaneously the energy released to the energy consumed ratio is 1:8 meaning that each kilowatt of electricity generates up to 8 kW of heat output.

All the models are designed for connection to Ø 160 or 250 mm round air ducts.

Modifications

The VUT R TN H EC models are equipped with a rotary heat exchanger and a heat pump without preheating.
The VUT R TN EH EC models are equipped with a rotary heat exchanger and a heat pump as well as a preheater.

Casing

The casing framework consists of three-layer panels made of aluzinc and internally filled with a 25 mm mineral wool layer for reliable heat- and soundinsulation. Due to the specially designed removable side panels the unit requires little service space and access to the unit components.

Filter

The unit has two integrated class G4 filters to filtrate intake and extract air. The unit can be supplied with a class F7 supply filter (option).

Motor

The units are equipped with high-efficient direct current electronically commutated (EC) motors with an external rotor and backward curved impeller blades. As of today such motors are the most state-of-the-art and progressive energy saving solution. EC motors are featured with high performance and well controllable speed range. Premium efficiency reaching 90% is the definite advantage of electronically-commutated motors.

Rotary heat exchanger

The rotary heat exchanger is a rotating short cylinder filled with multiple layers of corrugated aluminium strip in such a way so as to ensure free passage of the supply and exhaust air streams. As the wheel rotates the contact patch repeatedly moves from the intake to the extract air stream causing heating and cooling cycles thus transferring heat and humidity from the warmer air stream to the cooler one.

The rotary heat exchanger transfers the sensible and latent heat from the warm air stream to the cool one enabling partial moisture transport back to the premises. By virtue of design the rotary heat exchanger is hardly prone to freezing (the chances of ice buildup within the normal temperature and humidity range are almost zero).

Heat pump

The unit is cooled by a reversible heat pump which warms up or cools down the air as necessary. The rotary air compressors used combine high performance with low noise levels. The units utilize the R410A high-tech two-component cooling agent as the heat pump working fluid offering exceptional thermodynamic properties without depleting the ozone layer.

The highly efficient rotary heat exchanger recovers most thermal energy contained in the extract air and transfers it to the intake air. The heat pump transfers the remaining part of the low-potential extract air thermal energy to the intake air stream maintaining the user-defined room air temperature.

Heater

The VUT R TN EH EC units are equipped with a posistor electric heater which pre-heats intake air when the ambient temperature drops below the normal range. Preheating reduces the number of heat pump defrosting cycles thus increasing the overall operational efficiency of the unit. The heater is divided into two active elements for added power consumption economy without compromising the heating capacity.

Control and automation

The unit is equipped with a built-in automation system and the A17 (th-Tune) or A18 (pGD1) multifunctional sensor control panel.

The standard delivery set includes a 10 m cable for connection to the control panel.

Mounting

The unit is designed for mounting to a horizontal plane, suspension to a ceiling or wall mounting by means of brackets. Service access must be provided on the side panel side.