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Absorption Air Conditioning

High Efficiency Gas Fired Air Cooled Absorption Water Chillers.

Our Robur appliances are single effect High Efficiency Water Chillers incorporating an air cooled condenser for outdoor installation.

The ACF chiller uses the absorption refrigeration cycle, with a working fluid consisting of Ammonia and water to produce chilled water down to +4oC.  The absorption cycle is powered by the heat of either Natural Gas or LPG and the Ammonia/water cycled is a completely sealed circuit.

Water and Ammonia

The working fluid is mixture of 2/3 water and 1/3 ammonia.  The water is the absorption fluid and ammonia is the refrigerant.  Ammonia diluted into the water is absolutely safe and in comparison with other refrigerants has the following advantages.

  • 100% Green, Ozone Depletion Potential (ODP) = 0
  • Global Warming Potential (GWP) = 0
  • Does not provoke the green house effect
  • Its thermodynamic performance is among the best when compared to other fluids.
  • Proven technology with over 30 years of operation in the field

The Modular Approach

The ACF chiller is produced in a single module of 18kW, any number of units can be connected together to form a multi-unit module, the only limit is the available space for the equipment.  Standard factory assembled modules are available with the following cooling capacities.

  • RTCF-120 = 36kW
  • RTCF-180 = 54kW
  • RTCF-240 = 72kW
  • RTCF-300 = 90kW
  • RTCF-360 = 108kW

Copyright © of Apex Air Conditioning Ltd 2007