Liebert UPStation S VM18000 - Manual (Page 31)

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Routine Maintenance
The Liebert UPStation S™ UPS should operate for years with minimum maintenance. Keep UPS clean and cool to
enhance system reliability. Occasionally vacuum dust from around ventilation grilles and wipe UPS with a dry cloth. Do
not use liquid or aerosol cleaning fluids.
Periodically check UPS operation by switching off utility power and observing the On Battery message. Do this with only
non-critical loads connected to the unit.
Liebert UPStation S™ Specifications
SYSTEM
Safety Agencies
CSA 22.2, UL 1778 listed
Audible Noise 55 dBA at one meter
Transient/ Surge Protection Per IEEE 587/ANSI C62.41 Class A&B
Efficiency Minimum 87% at full load
PHYSICAL CHARACHTERISTICS (See Site Planing Data for dimensions and weight)
Operating Environment
0 degrees C to 40 degrees C
Relative Humidity 0 to 95% relative humidity (non-condensing)
Altitude 5000 feet without derating
AC INPUT
Voltage Range
176 to 264 VAC
Voltage Configuration and Connection
Single phase, 3-wire plus ground (L1-L2-N-G)
Single phase, 2-wire plus ground (L1-N-G)
Three phase, 4-wire plus ground (L1-L2-L3-N-G) (8-18 kVA only)
Three phase, 3-wire plus ground (L1-L2-L3-G) (8-18 kVA only)
Frequency Range 45 Hz to 65 Hz
Current THD 5% THD maximum at full load
Power Factor .98 typical
AC OUTPUT
Voltage Regulation
Typically less than +/- 2%
Voltage Distortion Max. 3% THD for linear loads, max. 5% THD for full non-linear
loads
Transient Response Less than +/- 5% for 100% step load; recovery to within 1% in 50
ms.
Frequency 50 Hz or 60 Hz
Frequency Slew Rate 1 Hz/sec (user-selectable 0.3 to 3 Hz/sec
Frequency Sync Rate +/- 1 Hz (user selectable +/- 0.1 Hz to 5 Hz
Load Crest Factor 3:1
Overload 125% for 10 minutes, 150% 10 seconds
BATTERY
Type
Sealed, low maintenance, lead acid
Recharge Rate 10 times discharge duration to 95%
Battery Runtime Minimum 10 minutes at full load
Battery Voltage Nominal: 192 VDC Float: 220 to 230 VDC