MGE UPS Systems Comet EXtreme Series Installation And User Manual page 2

Comet EXtreme 4.5/6/9/12 kVA
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS – This manual contains important instructions for Comet Extreme 4.5/6/9/12 kVA that
must be followed during installation, operation, and maintenance of the equipment.
Tightening torque for all input and output terminal blocks shall be 10.6 - 12.3 in - lbs. (1.2 - 1.4 Nm) for 4.5 and 6
kVA models and 21.8 - 26.1 in - lbs (2.5 - 3 Nm) for 9 and 12 kVA models.
The normal battery voltage for all models is 240 VDC.
The Comet EXtreme server UPS is intended for installation in a temperature controlled indoor area, free of conduc-
tive contaminants.
Safety of persons
A UPS has its own internal power source (the battery). Consequently, the output terminals may be energized even
if the UPS is disconnected from the AC-power source.
Dangerous voltage levels are present within the UPS. It should be opened exclusively by qualified service
personnel.
The UPS must be properly grounded.
The battery supplied with the UPS contains small amounts of toxic materials. To avoid accidents, the directives
listed below must be observed.
Never operate the UPS if the ambient temperature and relative humidity are higher than the levels specified
in the documentation.
Never burn the battery (risk of explosion).
Do not attempt to open the battery (the electrolyte is dangerous for the eyes and skin).
Comply with all applicable regulations for the disposal of the battery.
Product safety
The UPSs connection to the AC-power source must be protected by a branch circuit overcurrent protection that is
easily accessible.
The UPS can be disconnected from the AC-power source by opening the circuit breaker.
Never install the UPS near liquids or in an excessively damp environment.
Never let a liquid or foreign body penetrate inside the UPS.
Never block the ventilation grates on the front or back of the UPS.
Never expose the UPS to direct sunlight or a source of heat.
Special precautions
The UPS connection instructions contained in this manual must be followed in the indicated order.
Check that the indications on the rating plate correspond to your AC-power system and to the actual electrical
consumption of all the equipment to be connected to the UPS.
If the UPS is positioned flat, check that not more than five modules are stacked on top of each other.
If the UPS must be stored prior to installation, storage must be in a dry place.
The admissible storage temperature range is -40°C to +50°C.
If the UPS remains de-energized for a long period, we recommend that you energize the UPS for a period of 24
hours, at least once every month. This charges the battery, thus avoiding possible irreversible damage.
Do not use an external bypass switch. Contact customer service & support for assistance.
page ii page ii Safety Instructions