Olimpia splendid UNICO NEXT - Page 66

EN - 10
ENGLISH
13. All electrical power supplies must be disconnected from the appliance
on which you are working.
If it is absolutely necessary that the appliance has electrical power
supply, it is necessary to place a leak detector permanently opera
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tional in the most critical point.
14. Make sure the seals and sealing materials have not deteriorated.
 Possibledevelopmentofammableatmospheres.
15. Do not apply any net inductive or capacity load to the circuit
without making sure that this operation won’t make you exceed
the voltage and current permitted for the appliance in use.
The appliance for the test must have correct nominal values.
16. Periodically check that the cables are not subject to wear, corro-
sion, 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speciccustodycylin
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ders. 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.
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.