E/1203/30A/27
8. Vibrations
The cooling unit does not produce any significant vibrations as the parts which generate them are
installed on anti-vibration devices.
9. Mechanical Parts
9.1 STRUCTURE
These machines are composed using self-supporting panels. These are made of passivated and
baked enamel sheet metal to guarantee resistance against corrosion*. They make the machine
easy to inspect and, at the same time, offer adequate protection to its internal components.
Internal components of the structure are only accessible by removing cladding panels. These are
removed by extracting their fastening screws using suitable tools.
* suitable only for non-corrosive and non-salty environments
10. Cooling Components
These are connected together by copper piping, appropriately welded to ensure a good seal.
10.1 REFRIGERANT
The refrigerant that is used: R134a (Tetrafluorethane).
It is neither toxic nor flammable and is not harmful to the ozone layer (ODP = 0).
10.2 COMPRESSOR
In this unit a reciprocating hermetic compressor is used.
Compressors are basically composed of an electric motor and a mechanical section which is
powered by this motor for pumping the refrigerant gas.
In reciprocating compressors the pumping unit consists of a piston which slides inside a cylinder
and which generates, depending on its phase, compression and aspiration.
10.3 CONDENSER
This part allows the release of the heat of the refrigerant gas in the environment. It consists of an
exchange pack with copper piping and aluminium fins.
(suitable only for non-corrosive and non-salty environments)
10.4 FILTER DRYER
This is a mixed mechanical/chemical filter and serves the purpose of filtering the refrigerant which
goes through it, at the same time eliminating humidity particles.
10.5 CAPILLARY PIPE EXPANSION SYSTEM
This part causes a pressure drop of the refrigerant, before it comes into the evaporator.
Summary of Contents for CVC 07 001yy
Page 2: ...E 1203 30A 2...
