The compact unit is ready for installation and designed for operation theatres, hygienic areas, intensive cares and other applications, where hygienic climate is required according to DIN 1946/4 standard.

Design

Frame design made of galvanized hollow sheet-steel profiles and corner connections made of plastic. Inside of unit made of galvanized steel, sealed and insulated with mineral wool. Outside of the panels coated in RAL shade 5012.

Outside and supply air section consisting of:

  • Filter section with filter cassette G4 incl. diff. pressure switch
  • Heat recovery section with Cu/Al heat exchanger
  • Cooling section with Cu/Al heat exchanger as direct evaporator with eliminator
  • Heating section with Cu/Al heat exchanger, frost protection thermostat and control valve
  • Fan section with single inlet radial fan with backward curved blades, without casing, incl. speed controlled motor and air volume measurement
  • Humidifier section with electrical steam humidifier, steam distributor and drain pain
  • Filter section with filter cassette F8 incl. diff. pressure switch

Return and exhaust air section consisting of

  • Filter section with filter cassette G4 incl. diff. pressure switch
  • Heat recovery section with Cu/Al heat exchanger, incl. Eliminator
  • Condenser section with Cu/Al heat exchanger
  • Fan section with single inlet radial fan with backward curved blades, without casing, incl. speed controlled motor and air volume measurement

Mechanical section consisting of

  • Compressor in Scroll-design for refrigerant R407C or R134a, including all necessary refrigeration accessories and safety devices
  • Armature controls for heat recovery system with pump, expansion tank, pressure gauge and safety valve

Electrical and control section consisting of

  • Digital control system for temperature and humidity, controller for humidifier and speed controller for supply and exhaust fans
Hygienic Compact Unit KWHC 2000 ZA 4000 ZA 6000 ZA 8000 ZA
Outside / Supply air volume m3/h 2000 3500 6000 8000
Return / Exhaust air volume m3/h 1800 3150 5400 7200
Heat recovery capacity* kW 11.6 17.9 30.6 39.7
Cooling capacity** kW 12.8 23.1 38.2 48.5
Heating capacity PWW kW 22.4 39.2 67.1 89.5
Humidifying capacity kg/h 15 23 45 65
Dimensions: Width mm 2995 3245 3620 4370
Depth mm 790 790 1040 1040
Height mm 2330 2330 2330 2330

*At return air condition 23 °C / 40% rH and outside temperature -16 °C.
**At outside air condition 32 °C / 40% rH and return air temperature 27 °C.