16
Table
6.2 Approved refrigerants
6.2 APPROVED REFRIGERANTS
Usage of different refrigerants can generate abnormal working conditions, excessive
pressure in the refrigeration system, damages of the compressor and explosions.
All operations related to the use of refrigerants shall be performed only by trained
and qualified technicians and in accordance with applicable International and
National standards, laws and regulations related to this subject.
Users must have available and understand the applicable HFCs Material Safety
Data Sheets (MSDSs).
When selecting the refrigerant, it is important to measure different aspects the environment would require:
legislations, standards, cost, availability, and surely the applications. Thanks to its specific technology, the
scroll allows the compressor to run as multi refrigerant product, Embraco has therefore qualified the range
with the following refrigerants:
WARNING
WARNING
APPLICATION
REFRIGERANTS
R404A
R452A
R449A
R448A
R134a
R513A
LBP
✓
✓
✓
✓
X
X
MBP
✓
✓
✓
✓
✓
✓
R404A is an HFC refrigerant without any ozone depletion (ODP=0) and suitable for medium temperature and
low temperature applications, it is near an azeotropic mixture and the glide effect is negligible. It has to be
charged in liquid phase.
R452A is a HFC/HFO blend, it contains R125/R32/R1234yf, but belong to A1 safety class (GWP: 2140; ODP:
0), originally developed for transport application, it can also be used in commercial refrigeration in both
medium and low temperature applications with similar performances than R404A. It can therefore be used in
new installations as well as retrofit of existing installations.
R449A is a HFC/HFO blend, it contains R125/R32/R134a/R1234yf, low GWP (1397), no ozone depletion
(ODP=0) and belong to A1 safety class. It can be used for medium and low applications.
The impact of its glide (6,1K) and higher discharge temperature has to be taken consideration for retrofit; an
audit of the heat exchangers, expansion devices has to be done before final decision.
R448A is a non flammable HFC/HFO blend. It contains R125/R32/R134a/R1234yf/R1234ze, low GWP (1387),
no ozone depletion (ODP=0) and belong to A1 safety class. It can be used for medium and low applications.
The impact of its glide (6,3K) and higher discharge temperature has to be taken consideration for retrofit;
an audit of the heat exchangers, expansion devices has to be done before final decision.
R134a is a pure refrigerant with zero glide and low GWP (1430), it is only qualified for medium temperature
application.
R513A is a HFO refrigerant, it contains R1234yf/R134a, low GWP (631), no ozone depletion (ODP=0) with
zero glide and belong to A1 safety class. It is qualified for medium temperature application, suitable for new
installations as well as retrofit of existing installations.
