6
temperature, a system of room extractor fans is recommended to be installed. Optional air
filters are available if the UPS operates in a dusty environment.
◆
The environment temperature around the UPS should keep in a range of 0
℃
～
40
℃
.
If the environment temperature exceeds 40
℃
, the rated load capacity should be reduced
by 12
％
per 5
℃
. The max temperature can't be higher than 50
℃
.
◆
If the UPS is dismantled under low temperature, it might be in a condensing
condition. The UPS can't be installed unless the internal and external of the equipment is
fully dry. Otherwise, there will be in danger of electric shock.
◆
Batteries should be mounted in an environment where the temperature is within the
required specs. Temperature is a major factor in determining battery life and capacity. In a
normal installation, the battery temperature is maintained between 15°C and 25°C. Keep
batteries away from heat sources or main air ventilation area, etc.
WARNING!
Typical battery performance data are quoted for an operating temperature
between 20°C and 25°C. Operating it above this range will reduce the battery
life while operation below this range will reduce the battery capacity.
◆
Should the equipment not be installed immediately it must be stored in a room so as
to protect it against excessive humidity and or heat sources.
CAUTION!
An unused battery must be recharged every 3 months. Temporarily connecting
the UPS to a suitable AC supply and activating it for the time required for
recharging the batteries are required.
◆
The highest altitude that UPS may work normally with full load is 1500 meters. The
load capacity should be reduced when this UPS is installed in place whose altitude is
higher than 1500 meters, shown as the following table:
（
Load coefficient equals max load in high altitude place divided by nominal power of
the UPS
）
Altitude
（
m
）
1500
2000
2500
3000
3500
4000
4500
5000
Load coefficient
100%
95%
90%
85%
80%
75%
70%
65%
◆
To get the UPS completely monitored by the software, you just simply connect RS232
cable to each end of the computer and the UPS respectively.
3.5 External Protective Devices
For safety reasons, it is necessary to install, external circuit breaker at the input A.C.
supply and the battery. This chapter provides guidelines for qualified installers that must have
the knowledge of local wiring practices for the equipment to be installed.
◆
External Battery
The UPS and its associated batteries are protected against the effect of
