Refrigerant bulk cylinders and some service cylinders are fitted with two shutoff valves, which are colour coded and marked to indicate delivery of either liquid…
Category: Refrigerator pumping down and charging
This method is not always acceptable to manufacturers, since it involves putting refrigerant liquid into the high side of the system. If the compressor discharge…
A slight loss of refrigerant is recognized by ‘bubbles’ in the liquid-indicating sight glass installed in the liquid line of a system, a loss of…
When it is necessary to add refrigerant to a system after a loss it indicates that there is a leak in the system. The leak…
This procedure transfers the refrigerant circulating around the system from the liquid shut-off valve at the liquid receiver to the inlet of the compressor for…