The EDH Series Dehumidification Units are used in areas where dehumidification is needed, such as indoor swimming pools.

Exhaust and Supply Air Fans

The fans in packaged type dehumidifier units are equipped with innovative Electronically Commutated EC Plug Fan 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.

Filters

The first stage filter is G class , the second stage filter can be chosen as ISO ePM 10 >50%, ISO ePM 10 >60%, ISO ePM 1 >50-65%, ISO ePM 1 >65-80%, ISO ePM 1 >80% optionally for supply air streams, ISO COARSE >90% class filter is used for exhaust air streams. The first stage filter is washable and secured in rigid frames made of galvanized steel. The second stage filter is innovative compact filters with increased filtration surface area to reduce initial pressure drop over the filter and also reduce units’ size. All the filters comply with ISO 16890 to meet the requirements of odor absorption and dust arrestment. Filter blockage is indicated in the control panel by standard installed differential pressure switches however pressure gauge 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. There is epoxy coating in the case. The unit is constructed in sections to ease transportation, mounting and commissioning. Every section has its own basis and transport slots.

Aluminum Cross-flow Heat Exchanger

Packaged type dehumidifier units have aluminum counterflow, epoxy-coated , high efficient plate heat recovery exchangers. Plate heat recovery exchangers have plates that are produced improved surface areas to provide high efficient and leakage free design. With the optimization of exchanger heat transfer is increased and pressure drop is decreased. Heat recovery exchanger has Eurovent certification There is a stainless steel drain pan under the cross-flow exchanger.

Control System

Packaged type dehumidifier 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”. Exchanger monitoring and speed control, filter monitoring, fan monitoring are standard. With the use of optional IAQ, CO2 sensor or constant flow kit, fans regulate automatically according to user demand. The panel is BMS compatible and can handle various communication protocols like Modbus, Bacnet and Lonworks. Room control panel is supplied where no BMS protocol is demanded. Control System is also capable of controlling heating/cooling capacity when Packaged type dehumidifier units are used with heating/cooling coils.

Evaporator & Condenser

Copper tube – aluminum fin type and high efficiency evaporator and condenser are used. At the entrance of the evaporator, refrigerant distributor is used for a uniform distribution. In order to keep the pressure drops on !Me air ide reduced, since a lower value for the air speed is selected for evaporator and condenser. %ew is a stainless steel drain pan under the evaporator and condenser.

Compressor and Heat Pump Cycle

High efficiency, fully hermetic compressors are used in the dehumidifier with heat pump. Externally balanced thermostatic expansion valve is used in the unit. The system safety is ensured with low and high pressure pressurestats. The system can work in cooling mode or heating as optional depending on the season selection on the control panel. The unit has an automatic free-cooling system which enables further savings in order to reduce operating costs.