McQuay M5WSS Manuale di Installazione Scaricare il pdf (Pagina 37)

Unit has to be sufficiently vacuumed to -0.1MPa (-76cmHg). Leave the vacuum for 5 minutes to ascertain

the gauge pointer do not raise again.

Refrigerant Piping Length, Elevation and Bends

When piping length becomes too long, both the capacity and reliability drop. As the number of bends

increases, system-piping resistance to the refrigerant flow increase thus lowering the capacity of the unit

and as a result the compressor may become defective. Always choose the shortest path and follow the

recommendation as tabulated below.

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McQuay M5WSS Manuale di Installazione Pagina 37