Powerware FSS-0342J - Manual (Page 38)

Page 35
Ventilation Requirement: Clean, dust-free air, free of corrosive chemicals or other contaminants must be
available. FERRUPS uses internal fans to circulate the air for cooling. Air must
be free to circulate around the UPS and battery cabinet(s).
High Altitude Operation: The maximum operating ambient temperature drops 1
C per 300 meters (2 F
per 1000 feet) above sea level, with the maximum elevation being 3000 meters
(10,000 feet).
607 Protection
DC Input: DC fuse and battery charger fuse.
Output Protection: The ferroresonant transformer inherently limits current and provides overload protection.
FERRUPS has high AC and low AC output voltage alarms, as well as an overload alarm.
If the AC output voltage falls below the low AC output voltage alarm setpoint, the unit
will alarm after 5 seconds. If the AC output voltage falls below the low AC output
shutdown setpoint, the unit will alarm and shut down.
Some FERRUPS models have output receptacles protected by fuses or circuit breakers.
608 Batteries and Battery Charger
Standard batteries are sealed, gas recombinant, lead-acid type, especially designed for UPS use.
500 VA to 1.4 kVA: Nominal battery voltage is 12 VDC. The standard battery charger output is variable. For 500
VA-850 VA units, the charger output is rated at approximately 4 amperes at low battery and
2 amperes at 13.7 VDC. For 1.15k VA and 1.4 kVA units, the charger output is rated at
approximately 8 amperes at low battery and 2 amperes at 13.7 VDC.
1.8 kVA to 3.1 kVA: Nominal battery voltage is 48 VDC. The standard battery charger is rated at 4 amperes at
54.8 VDC.
4.3 kVA to 18 kVA: Nominal battery voltage is 48 VDC for 4.3KVA-7KVA models and 120 VDC for 10KVA-
18KVA models. The standard battery charger is rated at 5 amperes.
Optional battery chargers at higher current ratings are available. Call the nearest Best Power office for more
information.