Initial Maintenance: Ventilation - VOLTWERK VC 200 Instrucciones De Servicio

7.2
Transformerless central inverter
Constantly high or sharply fluctuating ambient temperatures, e.g.
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desert or steppe locations.
Design ratio AC / DC < 0.8.
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Proper inspections uncover faults such as defective protective
conductors, missing sections of shielding, damaged cables or parasitic
voltages to the housing. Please note:
Replace any defective components and wear parts immediately.
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Ventilation
The first maintenance of the ventilation system should be performed 8–12
weeks after commissioning of the central inverter. According to
experience, the air filters of the operating area become very dirty in the
first few weeks.
The maintenance interval is dependent on the location (cleanness of the
air) of the central inverter. If you eliminate dirt at an early stage, you will
avoid a reduction in the flow rate or impermissible counter pressures.
Carry out regular maintenance on the air filters as well as the supply and
exhaust air passageways and any openings in the operating area.

Initial maintenance: Ventilation

Prerequisites
Auxiliary power supply switched off.
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All external disconnectors open and secured against being switched
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back on.
Internal circuit breakers open.
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After disconnection of the device, wait another 15 minutes.
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Check that the device is de-energised using a suitable measuring
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instrument, in accordance with applicable guidelines.
All measuring devices and cables used must be approved for at least
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protection class CAT II 1000 V or CAT III 600 V (in accordance with IEC
EN 61010-1).
Checking the operating area
1. Check available operating manual.
2. Ensure air circulation. Please note:
The top of the device must remain unobstructed, to allow exhaust
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air to escape.
The central inverter must not draw in any dirt.
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Clean dust and sand from the floor.
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Clean the grilles over the device fans.
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Clean or, if necessary, replace the air filter of the operating area.
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Operating manual
7 Maintenance
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