A3346302IT74-GB
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7 Maintenance
7.1 INTRODUCTION
ALL THE OPERATIONS IN THIS SECTION MUST BE PERFORMED BY
AUTHORISED ELECTRICIANS OR BY QUALIFIED INTERNAL PERSONNEL.
To ensure an optimum operation of the
PMC
and a continuous and efficient protection of the
connected load it is recommended to check the batteries every 6 months, depending on the
ambiance temperature.
7.2 USER RESPONSIBILITIES
There are no user serviceable parts contained within the UPS so the maintenance responsibilities
of the user are minimal. To maximise the useful working life and reliability of the UPS and its
batteries, the environment in which the UPS operates should be kept cool, dry, dust and vibration
free. The batteries should be hold fully charged.
7.3 ROUTINE MAINTENANCE
The UPS is designed to receive regular preventative maintenance inspections. These
preventative maintenance inspections are essential to ensure that both the useful working life and
the reliability of the UPS are maximised. When the UPS is commissioned, the commissioning
field service engineer will attach a service record book to the front of the UPS and this will be
used to record the full service history of the UPS.
Preventative maintenance inspections involve working inside the UPS, which contains hazardous
AC and DC voltages. Only RITTAL trained or agreed service personnel and authorised field
service engineers are fully aware of all of the hazardous areas within the UPS.
During a preventative maintenance inspection the field service engineer will carry out the
following checks:
•
Site/environment conditions;
•
Integrity of electrical installation;
•
Cooling airflow;
•
Rectifier operation and calibration;
•
Inverter operation and calibration;
•
Static switch operation;
•
Battery status;
•
Load characteristics;
•
Integrity of alarm and monitoring systems;
•
Operation of all installed options;
7.4 BATTERY TEST
The battery test takes approx. 3 minutes and should be performed only if:
•
there are no alarm conditions;
•
the battery is fully charged;
•
mains is present.
The battery testing can be carried out independently of the operation mode (OFF-LINE or ON-
LINE) and whether or not the load is connected.
The battery test procedure can be performed from the UPS front panel. See “Operation” Chapter 4.
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