Dehumidifiers with heat recovery

The dehumidifiers with heat recovery of high efficiency series GHE were designed to provide dehumidi cation and fresh air in a residential area with very high energy efficiency, combined with radiant cooling systems.

The units have been designed to grant the dehumidification either under conditions of thermally neutral air or in terms of air-cooled, managing small air ow thus avoiding annoying tiny air currents typical of traditional air conditioning systems.

The units consist of a direct expansion cooling system combined with a cross ow heat exchanger highly efficient, designed for heat recovery and air exchange environment in compliance with applicable regional and national lows. All units are supplied with double condenser (the rst is an air condenser, the second is a water one) and of a logic which allows the dehumidification with neutrum air or with cooled air.

HYGR: Remote mechanical hygrostat + ther- mostat (WZ versions only) PCRL: Remote mechanical hygrostat.. RGDD: Built in electronic temperature-humi- dity sensor. INSE: Serial interface card RS485. FAEL: High e ciency electronic air lter H10.

Description

Main components

Frame All units are made from hot-galvanised thick sheet metal, to ensure the best resistance against the corrosions. The frame is self-supporting with remo- vable panels. The drip tray is present standard in all units.
Refrigerant circuit The refrigerant circuit is made by using international primary brands components and according to ISO 97/23 concerning welding procedures. The refrigerant gas used in these units is R134a for the model 25 and R407C for the models 50.
Compressor The compressor is alternative for mo- del 25 and rotative type for model 50., equipped and thermal overload pro- tection by a klixon embedded in the motor winding. It’s mounted on rubber vibration dampers to reduce the noise.
Heat exchangers The heat exchangers are made of copper pipes and aluminium ns. The diameter of the copper pipes is 3/8” and the thickness of the aluminium ns is 0,1 mm. The tubes are mechanically expanded into the aluminium ns to improve the heat exchange factor. The geometry of these condensers 13 14 15 16 guarantees a low air side pressure drop and then the use of low rotation (and low noise emission) fans. All the units have a stainless steel drip tray. Besides this, each evaporator is supplied of a temperature probe used as automatic antifreeze probe.
Fans The supply fan is centrifugal type, dou- ble inlet with forwards blades, with EC Fan motor directly connected. The exhaust fan is plug fan type with back- wards blades, with EC fan motor direct- ly connected.
Air filter Comes with the unit is built in removable filter media summary execution for di erentiated waste disposal, G4.
Heat recovery Hexagonal cross- ow heat recovery with PVC plates, high e ciency (90%).
Adjustment trimmers Used during calibration of fans air ow depending on the ducts pressure drop.
Microprocessor All EAT-EGAE-CS-GHE-DEH units are supplied with an ad- vanced software for the complete con- trol of the hydronic and air distribution side.

Dehumidifiers with heat recovery