Airplane design, vol.8 and errata (1990) by Roskam J.

By Roskam J.

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Extra info for Airplane design, vol.8 and errata (1990)

Sample text

After a couple of hours operation, check that the liquid indicator indicates circuit dry (dry-green) Operating conditions other than nominal conditions may produce considerably different values. Seal testing or identification of leaks must be carried out using R22 refrigerant gas or nitrogen (HRATHRAN models) or R407C refrigerant gas (HRAT E models), checking with a suitable leak detector. The refrigerant circuit must not be filled with a refrigerant other than that indicated on page 17-18. The use of a different refrigerant may cause serious damage to the compressor.

To reset normal functions, the alarm contact must be deactivated for at least 5 seconds. This allows the exchange of heat to be increased and/or decreased, maintaining condensing or evaporation pressures more or less constant. The fan functions independently of the compressor. HRAT E - HRAT/HRAN English 09/02 33 A SHUTTING DOWN FOR LONG PERIODS After deactivating the chiller: - Check that the remote switch SA1 (if present) is in the OFF position. - Check that the remote keyboard (if present) is set to “OFF”.

Seal testing or identification of leaks must be carried out using R22 refrigerant gas or nitrogen (HRATHRAN models) or R407C refrigerant gas (HRAT E models), checking with a suitable leak detector. The refrigerant circuit must not be filled with a refrigerant other than that indicated on page 17-18. The use of a different refrigerant may cause serious damage to the compressor. Oxygen, acetylene or other inflammable or poisonous gas must never be used in the refrigerant circuit as they may cause explosion or poisoning.

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