32
Measure
Completed
Notes
6
Checking the refrigeration system
■
Any replacement electrical components must be suitable for the
application and must correspond to the manufacturer’s specifi-
cation. Only replace faulty components with genuine spare
parts.
■
Carry out all component replacements in accordance with
guidelines. If necessary, consult Werke technical services.
Perform the following checks:
■
The refrigerant charge must not be greater than permitted for
the installation room.
■
Check the function of the ventilation system. The ventilation
apertures must not be blocked or obstructed.
■
If a hydraulically separated system is used, check the secondary
circuit for the presence of any refrigerant.
■
Labels and symbols must always be clearly visible and legible.
Replace any illegible information.
■
Refrigerant lines and components must be installed in such a
manner that they do not come into contact with substances that
can cause corrosion.
Exception: The refrigerant lines are made from corrosion-resist-
ant materials or are reliably protected against corrosion.
7
Checks on electrical components
■
Safety checks must be carried out for maintenance and repair
work on electrical components: See below.
■
In the event of a safety-related fault, do not connect the system
until the fault has been remedied.
If it is not possible to remove the fault immediately, provide a
suitable interim solution for the system’s operation if required.
Inform the system operator.
Carry out the following safety checks:
■
Discharge the capacitors: Ensure no sparks are created when
discharging.
■
Do not position any live electrical components or cables in the
immediate vicinity of the appliance when filling or extracting re-
frigerant or when flushing the refrigerant circuit.
■
Check the earth connection.
