Leak detection fluids are suitable for use with most refrigerants but the use of
detergents containing chlorine shall be avoided as the chlorine may react with the
refrigerant and corrode the copper pipe-work.
If a leak is suspected, all naked flames shall be removed/extinguished.
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When breaking into the refrigerant circuit to make repairs – or for any other purpose –
conventional procedures shall be used. However, for flammable refrigerants it is
important that the best practice is followed since flammability is a consideration.
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procedure shall be adhered to:
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times. Compressed air or oxygen shall not be used for purging refrigerant systems.
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and that ventilation is available.
In addition to conventional charging procedures, the following requirements shall
be followed.
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charging equipment. Hoses or lines shall be as short as possible to minimise the
amount of refrigerant contained in them.
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until the working pressure is achieved, then venting to atmosphere, and finally
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be recovered from the system, or isolated (by means of shut off valves) in a part of
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Removal and evacuation
Charging procedures
