GENERAL INFORMATIONPRODUCT INFORMATIONINTEGRATION INTO SYSTEMORDERING INFORMATION SYSTEM DESIGN
Reduce moisture in the system
Excessive air and moisture
• can increase condensing pressure and cause
high discharge temperatures.
• can create acid giving rise to copper platting.
• can destroy the lubricating properties of the oil.
All these phenomena can reduce service life
and cause mechanical and electrical compressor
failure.
Requirements
Solutions
DSH compressors are delivered with < 100ppm
moisture level.
At the time of commissioning, system moisture
content may be up to 100ppm.
During operation, the filter drier must reduce this
to a level between 20 and 50ppm.
To achieve this requirement, a properly sized
and type of drier is required. Important selection
criteria’s include:
• driers water content capacity,
• system refrigeration capacity,
• system refrigerant charge.
For new installations with DSH compressors with
polyolester oil, Danfoss recommends using the
Danfoss DML (100% molecular sieve) solid core
filter drier.
R
49FRCC.PC.045.A7.02
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