Structural Concepts Oasis CN53R handleiding

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Structural Concepts

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Handleiding

WARNING! TURN OFF CASE BEFORE PERFORMING PREVENTIVE MAINTENANCE!

Maintenance and Service Notes

Decommissioning

• Before carrying out this procedure, it is essential that the technician is completely familiar with the

equipment and all its detail. I tis recommended good practice that all refrigerants are recovered safe-

ly. 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 recovered 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 the system electrically.

c) Before attempting the procedure, ensure that:

i) mechanical handling equipment is available, if required, for handling refrigerant cylin-

ders;

ii) all personal protective equipment is available and being used correctly;

iii) the recovery process is supervised at all times by a competent person;

iv) 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 various

parts 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 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 the site properly and all isolation valves on the

equipment are closed off.

k) Recovered refrigerant shall not be charged into another refrigerating system unless it has been

cleaned and checked.

• Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant. The

label shall be dated and signed. For appliances containing flammable refrigerants, ensure that there

are labels on the equipment stating the equipment contains flammable refrigerant.

PREVENTIVE MAINTENANCE - TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY - 4 of 7

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