Shield M10U, User Manual

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Chapter 1 Installation
2 Shield M10U user manual
If necessary, a system of extractor fans should be installed to aid cooling-air flow. An air filter should be used when the
UPS is to operate in a dirty environment and should be regularly cleaned to maintain airflow. The cooling capacity of air
conditioner should be selected according to the power loss data of UPS specified in
Table.9-8 : Normal mode (VFI SS 111
double-conversion UPS)
Note: The UPS should be installed on a cement surface or other surface that is not combustible.
1.3.2 External Battery Room
The battery will generate some amount of hydrogen and oxygen at the end of charging, so the fresh air volume of the
battery installation environment must meet EN50272-2001 requirements.
The ambient temperature of the battery must be stable. Ambient temperature is a major factor in determining the
battery capacity and life. The nominal operating temperature of battery is 20°C. Operating above this temperature will
reduce the battery life, and operation below this temperature will reduce the battery capacity. If the average operating
temperature of battery is increased from 20ºC to 30ºC, then the service life of the battery will be reduced by 50%. If the
operating temperature of the battery is above 40ºC, then the battery service life will be decreased in exponent rate. In
a normal installation, the battery temperature is maintained between 15°C and 25°C. Keep batteries away from heat
sources or air outlets.
If external batteries are to be used, the battery circuit breakers (or fuses) must be mounted as close as possible to the
batteries, and the connecting cables should be as short as possible.
1.3.3 Storing
Should the equipment not be installed immediately, it must be stored in a room so as to protect it against excessive
humidity and heat sources (see
Table.9-2 ).The battery needs to be stored in dry and cool place with good ventilation. The
most suitable storage temperature is 20 ºC to 25ºC.
Preventing battery deep discharge
Should the UPS remains unpowered for a prolonged period of time while the battery are connected, the batteries
may deeply discharge and being so permanently damaged .In such cases it is therefore recommended to leave the
battery circuit breaker(s) open. During storage in any case, periodically charge the battery according to the battery
user manuals.
1.4 Positioning
When the equipment has been finally positioned, ensure the UPS will remain stationary and stable. To prolong the service
life, the place chosen must guarantee:

Space for easy operation on the UPS

Air sufficient enough to dispel heat produced by UPS

Against atmospheric agents

Against excessive humidity and heat sources

Against dust

With the current fire prevention requirements

The operating environment temperature is 20°C to +25°C. The batteries are at maximum efficiency in this
temperature range (for information about the battery storage and transportation as well as the environment, refer
to
Table.9-2 )

This equipment is of steel frame structure wrapped by removable panels. The top and side panels are fixed by
screws.

After opening the UPS rack door, the auxiliary connections for external low voltage interface and the maintenance
bypass can be accessed. The UPS rack has an operator and control panel located on its front door, which provides
the basic operating status and alarm information. Batteries are external. The UPS provides air inlet port in the front
and the air exhaust port in the rear part.
1.4.1 System Cabinet
A UPS system can comprise an UPS rack system, external battery cabinet, depending on the specific system requirement.
All the UPS system cabinets used in the same installation site are of the same height and should be positioned side-by-
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