EKO.E propane (R290) chillers 

  • Air cooled water chillers
  • Using eco-friendly propane (R290) as the refrigerant 
  • Commercial and industrial air conditioning
  • Cooling capacity between 48 kW and 430 kW at condenser air temp 25°C - Evaporator water IN/OUT 20/15°C


Description

  • Air cooled water chillers
  • Using eco-friendly propane (R290) as the refrigerant
  • Commercial and industrial air conditioning
  • Cooling capacity between 48 kW and 430 kW at condenser air temp 25°C - Evaporator water IN/OUT 20/15°C

Basic specifications

  • Housing: Base and panels made of painted galvanised steel; panels mounted on aluminium profiles to ensure total weathering resistance.

  • Compressor: Reciprocating SEMIHERMETIC type, fixed on anti-vibration system and complete with pressure lubrication system; oil crankcase heater, integral electronic protection and inlet plus outlet valves; capacity control head (for models from 251 up to 1402), flexible joints on suction and discharge. The compressor is mechanically optimised for use with hydrocarbons and built in according to Directive ATEX 94/9/EC for the safety requirements: Zone 2, Gas group IIB. Some components are ATEX certified.

  • Fan: Low speed, axial-flow fans fitted with accident-prevention protective grill; directly coupled motor with built-in thermal cutout and IP 54 protection degree; aerodynamic housing and wing profile blades increase efficiency and decrease noise level.

  • Air heat exchanger: Finned coil made with copper pipes and aluminium fins offering a high exchange surface area.

  • Water heat exchanger: Plate-type made of AISI 316 steel complete with water differential pressure switch. Shell covered with closed-cell neoprene anti-condensate material.

  • Electrical board: Switchboard to standards IEC 204-1/EN60204-1, complete with contactor and protection for compressor and fans. Main isolator and door interlock safety device. The cabinet is externally hung on one side of the unit.

  • Control: The microprocessor controls the unit capacity by timing the compressors and checks the operating alarms with the possibility to connect to BMS.

  • Refrigerant circuit: Filter drier, sight glass and liquid moisture, solenoid valve, shutoff valve on the liquid line, electronic expansion valve, safety pressure high / low switch, oil-pump differential pressure switch (from size 251). Some components are ATEX certified.

  • Additional safety device: To ensure high-safety-level the unit is equipped with a special gas detector for flammable gases, including two alarm levels and microprocessor control with LED status indicator.

  • Water circuit: (Integrated) Water pressure gauge, safety valve, centrifugal pump suitable for glycol solutions up to 20%, valve manual air release valve, water tank.

Accessories

  • Spring vibration isolation
  • Rubber vibration isolation
  • Modulating fan speed condensing control
  • Part-winding soft start
  • Compressor suction intercepting valve
  • Remote control panel
  • Max and min voltage relay
  • Evaporator antifreeze heater
  • Refrigerant gauges (standard)
  • Electromechanical flow switch
  • Additional stand-by water pump
  • Automatic by-pass valve (up to 401)
  • Oversized pump water (5 Bars)
  • Open expansion tank
  • Closed expansion tank with automatic filling valve

Advantages

  • Natural gas (propane, R290) as the refrigerant does not contribute to global warming or ozone depletion
  • Excellent physical and thermodynamic properties
  • Great technical and energy results

Application

  • Air conditioning

GALLERY


MORE INFORMATION

EKO.E propane (R290) chillers 



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