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2.0
TECHNICAL INFORMATION
2.1
GENERAL DESCRIPTION AND MAIN PARTS
The machines in this series are designed and built for use in air conditioning systems and industrial process cooling. They are fitted with a
microprocessor control system (see chapter 5), which allows the internal functions of the unit to be controlled, and interfacing with external
supervision systems. The units are thoroughly tested in the factory and supplied complete with refrigerant charge and lubricating oil.
In order to guarantee maximum performance and operator safety before installation, competent, authorised personnel must carry out design
tests and checks on the product and environment, analysing all of the foreseeable critical points during the lifespan of the equipment. The useful
life of the machine in normal conditions is estimated to be about 25,000 working hours and no more than ten years; when this period is reached,
a general revision is needed to upgrade the product and continue using it safely
. In this case, the type is:
-
Condensed liquid chillers with axial air flow fans suitable for outdoor installation
The appliances are essentially composed of a refrigerant circuit and a hydraulic circuit, which allow the cooling of pure water or glycol mixtures
(with ethylene glycol or propylene) up to a maximum concentration of 40% in weight
(1)
. In the refrigerant circuit, cooling is achieved by means
of a thermodynamic cycle thanks to the action of a compressor, a finned coil exchanger (source), a plate or shell and tube (users) exchanger and
an expansion valve that controls the flow of the refrigerant.
In terms of hydraulics, depending on the configurations and accessories, circulation pumps, storage tanks, filling groups etc. can be included. All
of these appliances are supplied inside a containing structure and are controlled by an electrical panel and microprocessor system designed
specifically for this purpose.
Below are a few examples of the numerous configurations and combinations possible for this series of chillers.
•
EKS BS
–
Business; configuration
“
2V
”;
basic version without pump and without tank; plate evaporator; single circuit with compressors
in trio configuration; standard model
Accessories: Condensing coil protective grills; High and low pressure manometers
EKS
–
BP / BS/AS 090-3-1
1
NOTE: for versions with pump(s) on board, it is necessary to use special mechanical seals for concentrations of glycol over 40%. Contact the
Manufacturer’s Technical Office for further information.
