Olimpia splendid SHERPA TOWER S2 E 4 Instrucciones Para La Instalación, Uso Y Mantenimiento página 72

16. Periodically check that the cables are not subject to wear, corrosion,
excessive pressure, vibrations, sharp edges or any other hostile
environmental situation.
17. When intervening inside the refrigerating circuit to carry out repairs or for
any other reason, the conventional procedures must be followed:
• remove the refrigerant;
• bleed the circuit with an inert gas;
• evacuate;
• bleed again with an inert gas;
• open the circuit by cutting or by means of brazing.
18. The load of refrigerant must be stored in the specific custody cylinders.
The system must "cleaned" with OFN to make the unit safe.
It may be necessary to repeat this process several times.
DO NOT use compressed air or oxygen for this operation.
18a Make sure that, while recharging the system THERE IS no contamination of
.
the various elements. The pipes or conducts MUST be as short as possible
to minimize the content of refrigerant inside them.
19. The cylinders must be kept in vertical position.
Only use cylinders suitable for collection of refrigerants.
The cylinders must be complete of a pressure-relief valve and switch off
valves in good conditions.
A set of calibrated weighing scales must also be available.
20. The pipes must be equipped with couplings for disconnection and must
NOT present leaks.
Before using the collection machine, check that it underwent correct
maintenance and that the possible associated electric components are
sealed, to prevent switching on in case of leak of refrigerant.
21. Make sure the refrigerating system is earthed before proceeding with
reloading of the system with refrigerant.
Label the system when reloading is complete.
Pay particular attention not to overload the refrigerating system.
22. Before proceeding with reloading, the system must undergo the pressure
test with OFN and the tightness test at the end of reloading, but before
commissioning.
It is necessary to carry out an additional tightness test before leaving the
site.
22a Remove the refrigerant safely. Move the refrigerant in the cylinders suitable
.
for recovery. Make sure there is a correct number of cylinders to contain
the charge entirely. All cylinders are labelled for this type of refrigerant
(special cylinders for refrigerant recovery).
The cylinders must be complete of a pressure relief valve and of and of
the corresponding closure valve in good conditions. Empty cylinders are
evacuated and, if possible, cooled down before recovery.
EN - 10