Installation procedures
Part Two starts with the most commonly encountered pipework fittings, methods of joining and supporting pipework and the important subject of oil traps to ensure oil return to the compressor for adequate lubrication at all times.
Installations vary according to system design, system application and the location of major components, of which the most important aspects are discussed. The requirement for ancillary controls and components also depends upon the system design.
The installation of compressors and drive couplings, including the correct alignment of drive options and drive belt tensioning, is of utmost importance, whether in a new installation, in replacement or during commissioning. The necessity to provide electrical protection for both equipment and personnel must not be overlooked.
System evacuation for newly installed systems and after remedial service has taken place must be given priority if reliability is to be achieved. Decontamination of systems often presents problems unless the prescribed and proved procedures are adopted.
For all of these requirements the correct, logical and safe practices are explained. Unless good refrigeration practices are observed, not only does a system’s reliability become suspect; there is also the danger of polluting the atmosphere in general, including the immediate vicinity where other people may be affected to the detriment of their health and working conditions.