DB-309-3
21
7
Maintenance and repair
The end user is not allowed to perform repair work on
the compressor/pressure vessel!
DANGER
Explosion danger during maintenance work!
Maintenance work may only be carried out if
there is no potentially explosive atmosphere.
The atmosphere must be permanently mon-
itored!
Observe the manufacturer's documentation of the com-
ponents used!
Use only original BITZER spare parts!
7.1
Updating a data protocol
• Check and log all operating data.
• In case of deviations, determine the source of the
problem and eliminate it.
7.2
Cleaning the system
Clean the system as needed but at least every six
months.
DANGER
Risk of explosion due to dust and oil!
Avoid all contamination!
Clean the whole system as needed but at least
every six months.
DANGER
Risk of explosion due to the discharge of elec-
trostatic charges!
Use only devices suitable for potentially explos-
ive atmospheres and assess and list them in the
explosion protection document of the end user!
Do not operate the devices in the vicinity of pro-
cesses producing high charges (e.g. mechanical
separation processes)!
Take measures against electrostatic charging of
non-metallic components, tools, auxiliaries and
clothing!
Wear, for example, suitable antistatic clothing,
use low-sparking tools, a moist cloth for clean-
ing, and perform additional earthing of conduct-
ive parts.
7.3
Checking the electrical components
Check the electrical components every six months.
• De-energise the system before starting maintenance
work.
• Check the cable connections of the protection
devices.
7.4
Interventions into the refrigerant and oil circuit
(e.g. oil change)
DANGER
Risk of explosion due to the discharge of elec-
trostatic charges!
Use only devices suitable for potentially explos-
ive atmospheres and assess and list them in the
explosion protection document of the end user!
Do not operate the devices in the vicinity of pro-
cesses producing high charges (e.g. mechanical
separation processes)!
Take measures against electrostatic charging of
non-metallic components, tools, auxiliaries and
clothing!
Wear, for example, suitable antistatic clothing,
use low-sparking tools, a moist cloth for clean-
ing, and perform additional earthing of conduct-
ive parts.
Oil change see DB-300.
