Application Ranges; Use Of Flammable Refrigerants Of The A2L Safety Group (E.g. R1234Yf) - Bitzer HS.8551 Instructions De Service

For work on the electrical and/or electronic system
WARNING
Risk of electric shock!
Before working on the terminal box, module
housing and electrical lines: Switch off the main
switch and secure it against being switched on
again!
Close the terminal box and the module housing
before switching on again!
Oil type Viscosity
BSE170 170
BSE170 170
B150SH 150
B100 100
Tab. 1: Application ranges and oil types for HS.85 and HS.95
➀ other refrigerants and HFO and HFO/HFC blends
only after consultation with BITZER.
For application limits, see brochures SP-110 (HS.85)
and SP-120 (HS.95) as well as BITZER SOFTWARE.
WARNING
Risk of bursting due to counterfeit refrigerants!
Serious injuries are possible!
Purchase refrigerants only from reputable man-
ufacturers and reliable distributors!
Risk of air penetration during operation in the vacuum
range
NOTICE
!
!
Potential chemical reactions as well as in-
creased condensing pressure and rise in dis-
charge gas temperature.
Avoid air penetration!
WARNING
A critical shift of the refrigerant ignition limit is
possible.
Avoid air penetration!
SB-110-3
Refrigerant ➀
R134a
R404A, R407A, R407C,
R407F, R448A, R449A,
R450A, R513A, R1234yf,
R1234ze(E), R507A
R22
R22
NOTICE
!
!
The compressor module may be damaged or
fail!
Never apply any voltage to the terminals of CN7
to CN12 – not even for test purposes!
The voltage applied to the terminals of CN13
must not exceed 10 V!
The voltage applied to terminal 3 of CN14 must
not exceed 24 V! Do no apply voltage to the
other terminals!

3 Application ranges

t (°C) t (°C)
c o
.. 70 +20 .. -20
.. 55 +7.5 .. -50
.. 60 +12.5 .. -40 approx. 60 .. max.
.. 45 -5 .. -50
(55)
3.1 Use of flammable refrigerants of the A2L safety
group (e.g. R1234yf)
Information
The information in this chapter about the use of
refrigerants of the A2L safety group refer to
European regulations and directives. In regions
outside the EU, observe the local regulations.
This chapter describes and gives explanations of addi-
tional residual risks originating from the compressor
when using refrigerants of the A2L safety group. This
information helps the manufacturer of the system carry
out a risk assessment. This information may in no way
replace the risk assessment for the system.
Design, maintenance and operation of refrigeration sys-
tems using refrigerants of the A2L safety group are
subject to particular safety regulations.
When installed according to these Operating Instruc-
tions and in normal operation conditions without mal-
functions, the compressors are free from ignition
sources that could ignite the flammable refrigerants
R1234yf and R1234ze(E). They are considered as
technically tight. No ignition source assessment is
Discharge gas tem- Oil injection
perature (°C) temperature
(°C)
approx. 60 .. max. max. 100
100
approx. 60 .. max. max. 100
100
max. 100
100
approx. 60 .. max. max. 80
100
5