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English to Italian translations [PRO] Tech/Engineering
English term or phrase:Pump down
Siamo alle solite definizioni. Viene spiegato esattamente di cosa si tratta ma non riesco a trovare una definizione (è un termine di glossario di condizionatori). Ecco la spiegazione:
Pump Down means collecting all refrigerant in the outdoor unit without loss in refrigerant gas.
Ecco la procedura:
1. Open the gas side service valve halfway and purge the air from the manifold hose using the refrigerant gas.
2. Close the liquid side service valve(all the way in).
3. Turn on the unit's operating switch and start the cooling operation.
4. When the low-pressure gauge reading becomes 1 to 0.5kg/cm2 G(14.2 to 7.1 P.S.I.G.), fully close the gas side valve stem and then quickly turn off the unit. At that time, Pump Down has been completed and all refrigerant gas will have been collected in the outdoor unit.