Olimpia splendid Unico Air 20 SF Mode D'emploi Et D'entretien page 57

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 operational in the most
critical point.
14. Make sure the seals and sealing materials have not deteriorated.
Possible development of flammable 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, 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.
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.
EN - 9
UNICO AIR
INVERTER R32