Exhaust and Supply Air Fans

The fans in air handling units are equipped with innovative Electronically Commutated EC motor technology. EC motors have higher efficiency and simple speed control. Fan blades have high aerodynamic efficient backward curved design. EC motors reduce the energy consumption and increase the energy efficiency of the unit. With EC Fans, maintenance costs are reduced as the fans are directly connected to the motors; the belt and pulley problems are eliminated.

Exhaust and Supply Air Filters

EHU-D handling units have standard ISO Course % 45 class pre-filters for both exhaust and supply air streams. A choice of ePM1 ≥ % 50 class final filters can be prefered optionally. G class pre-filters are washable and secured in rigid frames made of galvanized steel. ePM1 ≥ % 50 class final filters are innovative compact filters with increased filtration surface area to reduce initial pressure drop over the filter and also reduce size of units. All the filters comply with ISO 16890 to meet the requirements of odor absorption and dust arrestment. Fouled filter information is indicated in the control panel by standard installed differential pressure switches however pressure transmitter is also available optionally to observe fouling. Filter sections are designed to ease filter service and changing.

Casing & Insulation

The unit’s casing is made up of double skinned high corrosion resistive 200 gr/m² galvanize coated steel. 50 mm thickness and 70kg/m³ density of Rockwool insulation between the walls is used for thermal and sound insulation. The case of unit is painted by electrostatic powdered paint. The unit is constructed in sections to ease transportation, mounting and commissioning. Every section has its own basis and transport slots.

Control System

Units are equipped with a microprocessor based control system to meet various design needs.Both electrically and electronically control hardware comes with the unit that’s why the unit is “Plug and Play”. Filter monitoring, fan monitoring and DX system monitoring are standard. With the use of optional IAQ, CO2 sensor or constant flow kit, fans regulate automatically according to user demand. Room control panel is supplied where no BMS protocol is demanded. The panel is BMS compatible and can handle various communication protocols like Modbus, Bacnet and Lonworks. Control System is also capable of controlling heating/cooling capacity when units are used with heating/cooling coils.