Disposable Cylinders shall be used for carrying virgin or reclaimed refrigerants.

An increase in temperature results in increase in pressure of the refrigerant in the cylinder.

Pressure Relief valves in refrigeration system shall always be arranged in parallel. If relief valves are arranged in series, failure of one relief valve during over pressurization will result in explosion. If they are provided in parallel arrangement ample refrigerant flow can be possible during over pressurization.

Refrigerants with allowable exposure limit less than 400 ppm are considered as  higher toxicity and designated by letter B

All CFC refrigerants comes under Class I Refrigerants

Warmer the temperature of the refrigerant, denser will be refrigerant vapour and higher will be the system pressure. Recovery rate will be faster as the compressor in the recovery unit will recover more refrigerant per given time.

Reclaimed Refrigerant shall meet the ARI 700 purity standards and Recycled refrigerants need not require to maintain this purity standard.

Hot vapor refrigerant from compressor leaves to condenser and flows through the tubes of condenser. As refrigerant heat is removed in the condenser, refrigerant reaches saturation temperature and converts to high pressure liquid

Compound gauge measures low pressure and vacuum and color coded Blue. High pressure gauge is color coded Red. Yellow hose (compound gauge) is for service (add or remove refrigerant or remove contaminants from the system.

HFC refrigerants have Zero Ozone Depletion Potential as it does not contain chlorine elements which is the major factor responsible for ozone depletion. However HFC refrigerants are green house gases and contributes to global warming