Xtreme Power Conversion Corporation
R91 User’s Manual
Page 9
Uninterruptible Power Supply
Front panel
Installation Notes
• Place the UPS in a clean, stable environment, avoiding vibration, dust, humidity, flammable gas and liquid,
corrosive objects, etc. Check the operating temperature of the room where the UPS is being installed to
assure it is within range of UPS specification.
• Batteries should be installed in an environment where the temperature is within the required specifica-
tions of the product. Temperature is a major factor in determining battery life and capacity. Normal battery
installation requires the temperature be maintained from 15°C to 25°C. Keep batteries away from heat
sources and main air ventilation areas.
WARNING!
Typical battery performance data is quoted for an operating temperature between 20°C and 25°C. Operating
above this range will reduce the battery life while operation below this range will reduce the battery capacity. If
the equipment is not to be installed immediately, it must be stored in a room so as to protect it against excessive
heat and humidity sources.
CAUTION!
An unused battery must be recharged every 6 months. Temporarily connecting the UPS to a suitable AC source and
activating the UPS for the time required to recharge the batteries is required.
• To monitor the UPS with the software, simply connect the RS232 cable to the UPS and to a computer.
External Protective Devices
For safety reasons, it is necessary to install an external circuit breaker at the input AC utility and to the battery.
External Battery
The UPS and its associated batteries are protected against the effect of over-current through a DC compatible
thermo-magnetic circuit breaker located close to the battery.