McQuay M5HDC Especificaciones descargar pdf (Pagina 18)

M5HDC-2010 Application Information

(5) Handling and installation guidelines

Like R22 system, the handling and installation of R410A system are closely similar.

All precautionary measures; such as ensuring no moisture, no dirt or chips in the

system, clean brazing using nitrogen, and thorough leak check and vacuuming are

equally important requirements. However, due to its hydroscopic POE oil, additional

precautions must be taken to ensure optimum and trouble free system operation.

(a) During installation or servicing, avoid prolong exposure of the internal part of the

refrigerant system to moist air. Residual POE oil in the piping and components can

absorb moisture from the air.

(b) Ensure that the compressor is not exposed to open air for more than the

recommended time specied by its manufacturer (typically less than 10 minutes).

Removed the seal plugs only when the compressor is about to be brazed.

This vacuuming level is more stringent than R22 system so as to ensure no

incompressible gas and moisture in the system.

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 43 44

Sin comentarios

McQuay M5HDC Especificaciones Pagina 18