NOTICE
!
!
Risk of compressor failure!
Operate the compressor only in the intended ro-
tation direction!
3 Application ranges
Permitted refrigerants
Oil charge
Application limits
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!
3.1 Name plate
The name plate is attached to each compressor hous-
ing and contains relevant information like serial num-
ber, LRA and max. operating amperage, oil type and
charge, etc. Additionally, it contains the relevant ap-
proval marks, and BITZER QR code that may be used
to ensure that the compressor is an authentic BITZER
compressor.
ESB-130-7
A1 refrigerants (R410A)
A2L refrigerants
(R452B, R454B, R32)
BITZER BVC32
see compressor bro-
chures ESP-130 and
ESP-135 and BITZER
Software. Consult
BITZER for perform-
ance and application
guidance on other refri-
gerants.
3.2 Use of flammable refrigerants of the A2L safety
group
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 (except for the protection
device) are free from ignition sources that could ignite
the flammable refrigerants R452B, R454B and R32.
They are considered as technically tight. No ignition
source assessment is available for other refrigerants of
the A2L safety group. That is why the protection device
has to be installed outside the terminal box, for ex-
ample in the switch cabinet, until specific approval has
been obtained.
Information
When using a flammable refrigerant:
Affix the warning sign "Warning: flammable ma-
terials" (W021 according to ISO7010) well vis-
ibly to the compressor. An adhesive label show-
ing this warning sign is enclosed with the Oper-
ating Instructions.
Refrigerant burning in the terminal box may only hap-
pen if several very rare errors occur at the same time.
The probability of this event occurring is extremely low.
When suspecting burnt refrigerant in the terminal box,
wait at least 30 minutes before opening it. According to
the present knowledge, this is the time needed for the
toxic combustion products to be degraded. It is neces-
sary to use appropriate, acid-resistant gloves. Do not
touch moist residues, but allow them to dry, because
they may contain dissolved toxic substances. Never in-
hale evaporation products. Have trained staff clean the
parts concerned or, if the parts are corroded, dispose of
them properly.
5