Attention From The Operational And Maintenance Points Of View; Before Installing - NEC 500 UPS User Manual

3. Attention from the Operational and Maintenance Points of View

Please charge the battery.
The battery may not be fully charged when your UPS arrives. Please allow four to six hours for charging.
To turn off the UPS, set the Enable switch to OFF.
Pressing the Off button, does not turn off the UPS. To manually turn it off, set the Enable switch to OFF.
When the UPS has been unused or in storage, charge the battery before use.
The battery's charge will dissipate with disuse. Allow four to six hours to charge the battery before using.
Be careful in choice of circuit breaker.
Be careful of voltage sensitivity when setting up a circuit breaker on the input side of the UPS. If there is current leakage from
the loads, set the sensitivity higher.
Do not change the frequency of the UPS.
The frequency setting is either 50 Hz. or 60 Hz. It is preset and should not be changed.
Use reliable input power.
The AC line voltage to the UPS should be reliable, without large fluctuations.
Set up the environment for the UPS.
The UPS should be placed in an environment within its temperature and humidity specifications and avoiding direct sunlight.
Allow airflow around the UPS.
The airflow around the UPS should be adequate to provide cooling.
Replace the battery.
Replace the battery at the recommended intervals.
Do not operate the UPS with its cover removed.
Using the UPS without its cover is a safety and electrical hazard.
Exercise caution when changing or adding loads.
Although loads may be changed or added while the UPS is in operation, care should be taken not to overload the UPS or to
create an electrical hazard.

4. Before Installing

Inspection
Inspect the UPS upon receipt. Notify the carrier and dealer if there is damage. The packaging is recyclable; save it for reuse or
dispose of it properly.
Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void
the warranty.
Placement
Install the UPS in a protected area that is free of excessive dust and has adequate air flow. Do not operate the UPS where the
temperature and humidity is outside the specified limits.
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