Condair DL II, Руководство по эксплуатации, Страница: 62 / 80

62 Fault elimination
7 Fault elimination
7.1 Important notes on fault elimination
Qualification of personnel
Repair work must be carried out only by qualified and well-trained professionals authorized by the
owner .
Repair work relating to the electrical installation must be carried out by an electrician or professionals
authorized by the owner.
General notes
Repair work on the frequency converter and the booster pump must be carried only by your Condair
representative.
Only use original spare parts from your Condair representative to replace defective parts.
Safety
DANGER!
Risk of electric shock!
The control unit of the Condair DL and the pump motor inside the central unit (if applicable)
are mains powered. Live parts may be exposed when the control unit and/or the central unit
is/are open. Touching live parts may cause severe injury or danger to life.
Prevention:
Before carrying out any work on the components of the Condair DL take the system out
of operation as described in Section 4.5 and secure the system against inadvertent power-up.
Important: The frequency converter in the control unit of systems with booster pump contains
capacitors. These can remain charged with a potentially deadly voltage for a certain period of
time after the control unit has been disconnected from the power supply. Therefore, wait at least
10 minutes after disconnecting the power supply. Then make sure the appropriate contacts on
the frequency converter and the terminals on the pump motor are free of voltage before starting
any work on these components!
CAUTION!
The electronic components inside the control unit are very sensitive to electrostatic discharge.
Prevention: Before carrying out any repair work to the electrical or electronic equipment of the con-
trol unit, appropriate measures must be taken to protect the respective components against damage
caused by electrostatic discharge (ESD protection).