Famco Danfoss Maneurop MT, Manual, Page: 85 / 294

1
REFRIGERANTS AND LUBRICANTS
General information
Refrigerant Type
Compressor
type
Lubricant
type
Danfoss lubricant Application
R-22
HCFC MT Mineral White oil,
160P
Medium / High temperature
R-407C HFC MTZ Polyolester Polyolester oil 160PZ Medium / High temperature
R-134a HFC MTZ Polyolester Polyolester oil 160PZ Medium / High temperature
R-404A
HFC MTZ Polyolester Polyolester oil
160PZ
Medium temperature
R-507A
HFC MTZ Polyolester Polyolester oil
160PZ
Medium temperature
Transitional
refrigerants,
R-22 based
MT
Alkylbenzene
(ABM)
Alkylbenzene oil 160 ABM
Note: Initial mineral oil charge has
to be replaced by 160 ABM oil.
Medium / High temperature
Hydrocarbons
Danfoss does not authorise the use of hydrocarbons in Maneurop® MT/MTZ compressors
R-22
R-407C
When choosing a refrigerant, various
factors must be taken into considera-
tion:
• Legislation (now and in the future)
• Safety
• Application envelope in relation to ex-
pected running conditions
• Compressor capacity and efficiency
• Compressor manufacturer recommen-
dations & guidelines
Additional points could influence the
final choice:
• Environmental considerations
• Standardization of refrigerants and lu-
bricants
• Refrigerant cost
• Refrigerant availability
The table below gives an overview
of the different refrigerant - lubri-
cant - compressor combinations for
Maneurop®‚ MT & MTZ compressors.
The Montreal protocol states that CFC
refrigerants such as R-12 and R-502 may
no longer be applied in new installations
in the signatory members countries.
Therefore capacity and other data for
these refrigerants are not published in
this document. Maneurop® MT com-
pressors, however, are suitable for use
with these refrigerants and can still be
used as replacements in existing instal-
lations.
R-22 is an HCFC refrigerant and is still a
wide use today. It has a low ODP (Ozone
Depletion Potential) and therefore it will
be phased out in the future. Check local
legislation. Always use mineral white oil
160P with R-22.
The Maneurop® MT compressor is dedi-
cated for R-22 and is supplied with an
initial mineral oil charge.
Refrigerant R-407C is an HFC refrigerant
with thermodynamic properties similar
to those of R-22.
R-407C has zero ozone depletion poten-
tial (ODP=0). Many installers and OEMs
consider R-407C to be the standard al-
ternative for R-22. R-407C is a zeotropic
mixture and has a temperature glide of
about 11 K. For more specific informa-
tion about zeotropic refrigerants; refer
to section "Zeotropic refrigerant mix-
tures". R-407C must be charged in the
liquid phase.
Always use Danfoss 160PZ polyolester
oil with Maneurop® MTZ compressors
which is supplied with the MTZ com-
pressor for R-407C applications.
Maneurop® MT compressors should ne-
ver be used with R-407C, even when the
mineral oil is replaced with polyolester
oil.