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23AB218186428184en-US1501
GENERAL INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION PRODUCT INFORMATION
Operating conditions
General information
Refrigerant and lubricants
When choosing a refrigerant, different aspects
must be taken into consideration:
• Legislation (now and in the future)
• Safety
• Application envelope in relation to expected
running conditions
• Compressor capacity and efficiency
• Compressor manufacturer recommendations &
guidelines
Additional points could influence the final
choice:
• Environmental considerations
• Standardisation of refrigerants and lubricants
• Refrigerant cost
• Refrigerant availability
Alkylbenzene oil
Oil type
Residual moisture
PVE Polyvinyl ether (PVE) is an innovative
refrigeration lubricant for HFC refrigerant
systems. PVE is as hygroscopic as existing
polyolester lubricants (POE), but PVE doesn’t
chemically react with water; no acids are formed
and compressor evacuation is easier.
The compressor technology applied in Danfoss
H-series scroll compressors in combination with
PVE lubricant provides the best possible result in
terms of reliability and compressor lifetime.
The PVE lubricant is compatible with R22 which
makes the Danfoss H-series scroll compressors a
very versatile multi- refrigerant solution.
Alkylbenzene oil can be applied in systems
using HCFC refrigerants (R22). Compared to
a mineral oil it provides distinct advantages:
excellent miscibility, excellent thermal stability,
compatibility with mineral oils and constant
quality.
Danfoss Scroll H_M series compressors are
charged with Alkylbenzene oil and herewith
offer an economically interesting alternative to
the Danfoss H series in regions where R22 is still
the predominant refrigerant. Note however that
Danfoss H-series scroll compressors can not be
used with HFC refrigerants.
Danfoss scroll compressors are charged with
oil at the factory with the oils indicated, in the
following table.
Effective week 31 of 2009, the HRP/HLP/
HCP & HRH/HLH series of compressors were
changed from POE oil to PVE oil. Compressors
produced prior to this week still had POE,
and may be in stock in the warehouses until
supply is exhausted. This change was made
to standardize to the better oil for reliability.
Replacement PVE 320HV is available for topping
up or replacing oil in the field (see accessory
section). As it is fully miscible with POE, Danfoss
recommends the 320HV regardless of original oil
charge in the compressor.
Prior to shipment from the factory, every
compressor is dehydrated, evacuated, and
charged with dry nitrogen. Maximum residual
moisture levels are 0.0082 oz. for models
capacities up to HRM/HRP047 and HRH040 and
0.0120 oz. for larger compressors.
Compressor range Oil type
HRM / HLM / HCM Alkylbenzene
HRP / HLP / HCP PVE
HRH / HLH PVE
HLJ/HCJ PVE
Run-in process Our H product ranges feature a compliance
technology which allows
. an exceptional slugging capability (radial
compliance)
. a very low starting torque (axial compliance)
When a compressor with compliance technology
is new, the performance is not immediately at
peak. A run-in period is needed to polish all
surfaces as well as to reduce friction and leakage.
The run-in period eliminates extra power input