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supply before starting work.
1. Familiarise yourself with the equipment and how it operates.
2. Electrically isolate the system.
3. Before starting work, check the following points:
- mechanical handling equipment is available if needed to handle the refrigerant cylinders;
- all personal protective equipment is available and used correctly;
- the recovery process is monitored at all times by a cognisant person;
- the recovery cylinders and equipment comply with the relevant standards.
4. Drain the cooling system where possible.
5. If a vacuum cannot be created, install a manifold in order to be able to remove the refrigerant from various locations
within the system.
6. Make sure that the cylinder is located on the scales before starting recovery operations.
7. Start the recovery unit and operate as per its instructions.
8. Do not overfill the cylinders (no more than 80% of the volume must be filled with liquid).
9. Do not exceed the maximum working pressure of the cylinder, even temporarily.
10. When the cylinders have been filled correctly and the process is complete, check that the cylinders and the
equipment are quickly removed from the site and that the alternative shut-off valves on the equipment are closed.
11. The recovered refrigerant must not be charged in another cooling system, unless it has been cleaned and inspected.
4.1.2 Monthly user maintenance
•
Check visually that the condensates are drained.
•
Check the electrical connections,
•
Check for clogging in the filters:
- Remove the filters (see opposite)
-
Wash them with warm soapy water,
- Rinse them abundantly and dry them,
- Replace them if necessary.
4.1.3 Annual maintenance to be performed by a qualified technician
•
Check the cleanliness of the condensation drainage tube,
•
Check the condition of the power cable,
•
Check the hygrostat setting and operation,
•
Clean the whole unit with a slightly damp cloth.
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