Energy saving

Energy-efficient adiabatic humidifier


Rack with configurable number of nozzles

Minimal maintenance

Works with demineralised water


VDI 6022-1 certification guarantees no risk of bacterial proliferation

Variable speed management

Equipped with an EVCO inverter installed in the electrical compartment and physically separated from the hydraulic unit
  • Humidity distributed into an AHU or the room
  • Number of nozzles customisable (4 l/h or 8 l/h)
  • Constant 80 bar pressure irrespective of number of nozzles
  • Tiny particles produced (15 μm)
  • Stainless steel pumping system
  • EVCO controller with an EPcolor interface on the hydraulic unit and an EVCO controller with an EV3 interface on the distribution rack
  • Pump control with instant viewing of operational parameters

The humidifiers in the HPN series deliver steam into the room using a customisable distribution system, or directly into an AHU, using distribution racks with a configurable number of branches and nozzles. Several AHUs can be served by a single humidifier by connecting the hydraulic unit to multiple distribution racks. Each rack has its own controller connected to the AHU humidity sensor. Depending on the production requirement of each rack, the precision control of the hydraulic unit keeps the pressure of the fluid constant (8 MPa), producing mist with a particle size of around 15 μm, irrespective of the size of the rack.

Steam distribution racks

Distribution racks are available in three different heights; Distribution racks are available in three different heights; the length of the branches is variable and nozzle size may be 4 l/h or 8 l/h. The number of nozzles can be customised to the client’s needs. The EVCO controller installed on the rack gives proportional control of the opening of the nozzles. Built entirely in stainless steel, the distribution system automatically controls the solenoid valve to discharge water, meeting the hygiene requirements of VDI 6022-1.

Ideal in the following applications


Residential and commercial environments


Textile industry


Paper and printing industry


Food industry


Greenhouses, botanical gardens and farms


Biomedical industry

Production capacity [kg/h]60120180240300420540660840
Maximum pressure [MPa/bar]8/80
Maximum number of nozzles (4l/h) [n]1530446074104134164210
Maximum number of nozzles (8l/h) [n]715223037526782105
Power consumption [kW]
Power supply [Vac, Hz]230, 0/60
Phases [n]111111133
Inlet water qualityComplies with microbiological standards for drinking water established by German standard (TrinkwV) and demineralised (completely or partially) water from drinking water. A VDI 6022 non return valve must be installed if non-demineralised water is used
Inlet water conductivity [μS*cm]0...100
Inlet water hardness [°f]0...5
Inlet water pressure [MPa/bar]0,02...14/0,2...10
Inlet water connectionM 3/4"GAS
Water drain external dimensionsM 1/4"GAS
Main unit dimensions [mm]515x600x335660x600x335
Main unit weight [kg]50
Operating conditions [°C, RH]1…40, max. 80% non-condensing
Storage conditions [°C, RH]-10…70, max. 95% non-condensing
Main unit protectionIP20
Distribution rack protectionIP40
Type of controllerBuilt-in with advanced EPcolor user interface on the main unit and simplified EV3 user interface on the distribution rack
Command signalON-OFF, proportional 0...10 V, transducer 0...10V/4...20 mA
RS-485 MODBUSBuilt-in
Distribution racks
EHPDxxxxRKxxxxxcustomisable rigid distribution rack (consisting of a rack cabinet complete with electronic control and inlet, outlet and shutter solenoid valves and a number of rigid branches complete with spray nozzles)
EHPD0184RK1200372 kg/h, 18 spray nozzles 4 kg/h, 1,200 mm high, 3 rigid branches distribution rack
EHPD0908RK10006720 kg/h, 90 spray nozzles 8 kg/h, 1,000 mm high, 6 rigid branches distribution rack
EHPD0358RK08003280 kg/h, 35 spray nozzles 8 kg/h, 800 mm high, 3 rigid branches distribution rack
EHPD1028RK15005816 kg/h, 102 spray nozzles 8 kg/h, 1,500 mm high, 5 rigid branches distribution rack
0016020016telescopic support for rigid distribution rack
Mist eliminators
EHDE01mist eliminator 760x760x70 mm
EHDE02mist eliminator 608x608x70 mm
EHDE03mist eliminator 456x456x70 mm
EHDE04Omist eliminator 760x608x70 mm
EHDE05Omist eliminator 760x456x70 mm
EHDE06Omist eliminator 608x456x70 mm
EHDE04Vmist eliminator 608x760x70 mm
EHDE05Vmist eliminator 456x760x70 mm
EHDE06Vmist eliminator 456x608x70 mm
Hoses to load water
EHPNFILTwater inlet filter (5 μm cartridge + 1 μm cartridge included)
EHPNK03unit/rack water fill hose in technopolymer 2 m long
EHPNK04unit/rack water fill hose in technopolymer 3 m long
EHPNK05unit/rack water fill hose in technopolymer 5 m long
EHPNK06unit/rack water fill hose in technopolymer 10 m long
EHPNK07unit/rack water fill hose in technopolymer 15 m long
EHPNK13stainless steel unit/rack water fill hose 2 m long (VDI 6022-1 compliant)
EHPNK14stainless steel unit/rack water fill hose 3 m long (VDI 6022-1 compliant)
EHPNK15stainless steel unit/rack water fill hose 5 m long (VDI 6022-1 compliant)
EHPNK16stainless steel unit/rack water fill hose 10 m long (VDI 6022-1 compliant)
EHPNK17stainless steel unit/rack water fill hose 15 m long (VDI 6022-1 compliant)
EHPNK18T connection kit 3/8" GAS water supply for multirack
EV3411M7single output electronic controller, power supply 230 VAC, multi-sensor analog input
EVHTP520humidity and temperature probe, proprietary signal
EVHP523humidity transducer, power supply 8... 28 VDC, 1 x 4-20 mA provided signal
EVHTP523humidity and temperature transducer, power supply 8... 28 VDC, 2 x 4-20 mA provided signal
EVTPNW30F200NTC probe, 2 wires thermoplastic cable 3 m long, 5x20 mm overmoulded bulb, IP68 protection
Reverse osmosis system
EHRO200200 l/h reverse osmosis system
EHRO300300 l/h reverse osmosis system
EHRO400400 l/h reverse osmosis system
00105200403/8 " GAS male T fitting
0031000048¾" GAS female flexible hose for connection between the water mains and the water filling solenoid valve, 0.3 m long
EHAC100100 l vertical expansion tank for autoclave
EHAC200200 l vertical expansion tank for autoclave
EHKDA25anti-scale dosing system and additive kit (25 kg)
EHUV300300 l/h UV disinfectant system
EHUV600600 l/h UV disinfectant system