Handleiding
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Air Conditioner Service Manual
20
22. Decommissioning
Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment
and all its detail. It is recommended good practice that all refrigerants are recovered safely. Prior to the task
being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of
reclaimed refrigerant. It is essential that electrical power is available before the task is commenced.
a) Become familiar with the equipment and its operation.
b) Isolate system electrically.
c) Before attempting the procedure,ensure that:
. mechanical handling equipment is available,if required,for handling refrigerant cylinders;
. all personal protective equipment is available and being used correctly;
. the recovery process is supervised at all times by a competent person;
. recovery equipment and cylinders conform to the appropriate standards.
d) Pump down refrigerant system,if possible.
e) If a vacuum is not possible,make a manifold so that refrigerant can be removed from variousparts of the
system.
f) Make sure that cylinder is situated on the scales before recovery takes place.
g) Start the recovery machine and operate in accordance with manufacturer's instructions.
h) Do not overfill cylinders.(No more than 80% volume liquid charge).
i) Do not exceed the maximum working pressure of the cylinder,even temporarily.
J) When the cylinders have been filled correctly and the process completed,make sure that the cylinders and
the equipment are removed from site promptly and all isolation valves on the equipment are closed off.
k) Recovered refrigerant shall not be charged into another refrigeration system unless it has beencleaned and
checked.
23. Labeling
Equipment shall be labled stating that it has been de-commissioned and emptied of refrigerant.The label shall
be dated and signed. Ensure that there are labels on the equipment stating the equipment contains flammable
refrigerant.
24. Recovery
When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good
practice that all refrigerants are removed safely.When transferring refrigerant into cylinders, ensure that only
appropriate refrigerant recovery cylinders are employed.Ensure that the correct number of cylinders for holding
the total systemcharge are available.All cylinders to be used are designated for the recovered refrigerant and
labled for that refrigerant(i.e.Special cylinders for he recovery of refrigerant).Cylinders shall be complete with
pressure-relief valve and associated shut-off valves in good working order.Empty recovery cylinders are
evacuated and,if possible,cooled before recovery occurs.The recovery equipment shall be in good working
order with a set of instructions concerning theequipment that is at hand and shall be suitable for the recovery of
all appriate refrigerants includeing, when applicable,flammable refrigerants.In addition,a set of calibrated
weighing scales shall be available and in good working order. Hoses shall be complete with leak-free
disconnect couplings and in good condition.Before using the recovery machine,check that it is in
satisfactoryworking order,has been properly maintained and that any associated electrical components are
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Productinformatie
| Merk | Daizuki |
| Model | DXFMT-3624-4Z |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 16081 MB |
