Handleiding
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Cylinders shall be kept in an appropriate position according to the instructions.
Label the system when charging is complete (if not already).
Extreme care shall be taken not to overfill the refrigerating system.
Ensure that the refrigerating system is earthed prior to charging the system with
refrigerant.
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Specialist’s Manual
Ensure that contamination of different refrigerants does not occur when using
charging equipment. Hoses or lines shall be as short as possible to minimise the
amount of refrigerant contained in them.
Prior to recharging the system, it shall be pressure-tested with the appropriate purg-
ing gas. The system shall be leak-tested on completion of charging but prior to com-
missioning. A follow up leak test shall be carried out prior to leaving the site.
Decommissioning
Before carrying out this procedure, it is essential that the technician is completely
remove refrigerant;
purge the circuit with inert gas;
evacuate ;
purge with inert gas ;
open the circuit by cutting or brazing..
spheric pressure to enable work to take place. This operation is absolutely vital if
brazing operations on the pipe-work are to take place.
Ensure that the outlet for the vacuum pump is not close to any potential ignition
sources and that ventilation is available.
Charging procedures
In additon to conventional charging procedures, the following requirements shall be
followed.
The refrigerant charge shall be recovered into the correct recovery cylinders. For
appliances containing flammable refrigerants other than A2L refrigerants, the
system shall be purged with oxygen-free nitrogen to render the appliance safe for
flammable refrigerants. This process may need to be repeated several times. Com-
pressed air or oxygen shall not be used for purging refrigerant systems.
If a leak is suspected, all naked flames shall be removed/extinguished.
If a leakage of refrigerant
is found which requires brazing, all of the refrigerant shall
be recovered from the system, or isolated (by means of shut off valves) in a part of
the system remote from the leak. Removal of refrigerant shall be according to
clause IEC60335-2-40:2018 Annex DD.9 .
Removal and evacuation
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 best practice is followed since flammability is a consideration. The
following procedure shall be adhered to:
For appliances containing flammable refrigerants, other than A2L refrigerants,
refrigerants purging shall be achieved by breaking the vacuum in the system with
oxygen-free nitrogen and continuing to fill until the working pressure is achieved,
then venting to atmosphere, and finally pulling down to a vacuum. This process
shall be repeated until no refrigerant is within the system. When the final
oxygen-free nitrogen charge is used, the system shall be vented down to atmo-
Bekijk gratis de handleiding van Gree GWV20Z, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Gree |
| Model | GWV20Z |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 2909 MB |
