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Air handling units with the air capacity up to 2200 m3/h and recuperation efficiency up to 88% in sound-proof and heat-insulated casing with electric heater.

Voltage / frequency:


Products in this series (8)

Series   Rated air capacity [m3/h]   Heater type   Duct connection
  350; 500; 530; 600; 800; 1000; 1500; 2000   Е -  electric   H - horizontal

Air handling units VUT EH with electric heater are the complete air handling units designed to provide both supply and exhaust ventilation with air filtering and heat recovery. The exhaust air energy is used to heat up the supply fresh air through the heat exchanger. All the models are designed for connection with Ø 125, 150, 160, 200, 250, 315 mm round ducts.


VUT EH – a range of compact energy saving air handling units (AHU) equipped with supply and exhaust centrifugal fans, cross-flow heat recovery elements, electric heating coils and air filters.


The casing is manufactured from aluminum-zinc compound with 25 mm thick mineral wool heat- and sound-insulating layer.


Two incorporated G4 panel filters for extract air ventilation and F7 filters for supply air ventilation are supplied with the unit.


The units are equipped with supply and exhaust centrifugal double-inlet fans with forward curved blades and built-in thermostat with automatic restart. The electric motors and impellers are dynamically balanced in two planes. The ball-bearings used with motors are designed for at least 40 000 hours operation and are maintenance-free.

Heat exchanger

The heat exchangers have high efficiency and are manufactured from aluminium plates. The unit is also equipped with the drain pan for condensate drainage.


The electric heater at outlet from the heat exchanger is designed for warming up of supply air up to the set level if heat recovery is not enough to attain the set supply air temperature.

Automation and control system

The unit incorporates an integrated automation and control system with a multi-functional control panel with LCD display. The standard delivery set includes 10 m connection cable for connection to the remote control panel. The unit has the freezing protection function to prevent the heat exchanger freezing by means of actuating the bypass damper and controlling water heater. As the temperature sensor warns of the freezing danger, the bypass air damper is opened and the intake air is directed through the air duct beside the heat exchanger. As the heat exchanger is warmed the supply air temperature rises up to the set level while passing through the heater. Meanwhile the warm extract air warms up the heat exchanger. After the freezing danger is no longer imminent, the bypass damper shuts the bypass duct and the unit reverts to the standard operation mode.

VUT EH control and protection functions
  • control from the control panel: switching on/off, speed selection, timer, faults;
  • maintaining the set room temperature by the sensor on the control panel – smooth heating capacity control;
  • three-speed fan speed control (low-medium-high);
  • unit operation according to daily and week schedule (timer adjustable from the control panel);
  • safe start-up/shutdown of the fans;
  • electric heater overheating protection by the temperature sensor installed in the supply air duct and by two overheating thermostats, one thermostat activated at 60 °C with automatic reset and another thermostat activated at 90 °C with manual reset. Blowing of the heating elements for heat removing at the end of the heating cycle;
  • filter clogging control by engine hours.
Accessories for air handling units:


Type Replaceable filter (panel filter) G4 Replaceable filter (panel filter) F7
VUT 350 EH SF VUT 300-600 EH/WH G4 SF VUT 300-600 EH/WH F7
VUT 500 EH
VUT 530 EH
VUT 600 EH
VUT 800 EH SF VUT 1000 EH/WH G4 SF VUT 1000 EH/WH F7
VUT 1000 EH
VUT 1500 EH SF VUT 2000 EH/WH G4 SF VUT 2000 EH/WH F7
VUT 2000 EH



The air handling unit is mounted on the floor, suspended to the ceiling by means of a seat angle with inserted vibration-damping element or attached to a wall with brackets. The unit can be mounted either in service spaces or in main premises above the suspended ceiling, in the pocket or can be placed directly in the room. Mounting in any position shall provide the correct condensate drainage. Access for the unit maintenance and filter cleaning shall be provided through the side panels.


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