Installation And Service; Piping Design; Wiring And Rotation Direction; Failure Analysis - Danfoss MLM116 Application Manuallines

Application Guidelines

Piping design

Wiring and rotation
direction

Failure analysis

50
FRCC.PC.035.A4.02

Installation and service

For each tandem configuration specific outline
drawings are available as indicated on the
following pages. These drawings must always be
followed.
No changes shall be made to the indicated
tubing diameter and fitting types. As for passive
All compressors in a manifolding unit must be
electrically wired individually.
When one compressor in a parallel system fails,
the chance of foreign particles entering other
compressors is greatly increased. Therefore a
Manifold compressors
systems, the oil equalization line shall be made of
copper tube and assembled in such a way so that
it does not extend above the connection height
and must be horizontal so as not to trap oil.
Please contact Danfoss Sales for specific
drawings.
Compressors should run with the correct rotation
direction. This can be achieved by having the
correct phase sequence on each compressor
motor terminal (L1-T1, L2-T2, L3-T3).
failure analysis must be done quickly to ensure
further proper running conditions for the overall
installation (i.e.: oil analysis).