Best Power Unity/I UT3K Manual de instalación Pagina 1

UNITY/ITMUT3K, UT4K, UT5K and UT8KSingle-PhaseUninterruptible Power SystemsInstallation ManualMLS-0351C-OLCopyright 1994-1997 Best Power. All rights r

5Figure 3: External Bypass Switch DimensionsTable 5: External Bypass Switch DimensionsExternal Bypass Switch A B C D EBPE-0216 in.406 mm8 in.203 mm17

6103 Finding a Location for the UPSFigure 4 shows an overview of a typical installation for a hardwired UPS.Figure 4: Typical Hardwired UPS Installati

7• Provide proper UPS ventilation clearance and service clearance.• Required ventilation clearance: 4 inches (100 mm) at the rear and top.• Required s

Section 200: Starting the AC InstallationThe UPS must be installed by a qualified electrician.201 Positioning the Equipment❑1. Put the UPS in place. F

9❑2. Size the UPS output overcurrent protection device (fuse or circuit breaker) per local coderequirements. Do not exceed the ratings in Table 7. See

10❑4. Determine the correct wire size for the grounding electrode conductor.• The grounding electrode conductor must be a minimum of #8 AWG (8.36 mm2)

Section 300: AC InstallationThe UPS must be installed by a qualified electrician.301 Removing the Covers and Knock Outs❑ 1. Remove the UPS side covers

12302 Installing the Conduit and Wiring❑1. Install the conduit and conduit adapters. Refer to the proper installation wiring diagram for yourapplicati

13❑4. Make the UPS terminal strip connections and all other AC wiring connections.• Refer to the proper installation wiring diagram for your applicati

14Figure 5: Wiring Diagram for UT3K, UT4K, UT5K, and UT8K UPSwith External Bypass Switch (L1, L2, N)• 50 or 60 Hz: 200 Input - 100/200 Output • 60 Hz:

IMPORTANT SAFETY INSTRUCTIONS!SAVE THESE INSTRUCTIONS!This manual contains important instructions for your UNITY/I™UPS.The installation and use of thi

15Notes for Figure 5CAUTION!The AC output circuit is considered as a separately-derived source. To ground this circuit, the installing electrician MUS

16Figure 6: Wiring Diagram for UT3K, UT4K, UT5K, and UT8K UPS withExternal Bypass Switch and External Input Isolation Transformer60 Hz: 208 or 480 VAC

17Notes for Figure 6CAUTION!The AC output circuit is considered as a separately-derived source. To ground this circuit, the installing electrician MUS

18Figure 7: Wiring Diagram for UT3K, UT4K, UT5K, and UT8K UPS withExternal Bypass Switch (L - N High Voltage Only)• 50 or 60 Hz: 200 Input - 200 Outpu

19Notes for Figure 7CAUTION!The AC output circuit is considered as a separately-derived source. To ground this circuit, the installing electrician MUS

20Figure 8: Wiring Diagram for UT3K, UT4K, UT5K and UT8K UPSwith Optional 380/400/415 VAC Input50 Hz: 380 or 400 or 415 Input - 220 or 230 or 240 Out

21Notes for Figure 8:Table 10: Recommended Input Fuse for Models with Optional 380/400/415 VACInputCAUTION!The AC output circuit is considered as a se

22Figure 9: UPS Output Wiring ConnectionsFind the output wiring configuration (Figure 9A - 9P) for your UPS input voltage and frequency andUPS output

23Notes for Figures 9A - 9KNOTE 1:Connect the UPS’ green and yellowneutral-to-ground (neutral-to-earth)wire (N-G bond) to the UPS outputterminal indic

24Notes for Figure 9L and 9MNOTE 1: Connect the UPS’ green and yellow neutral-to-ground (neutral-to-earth) wire (N-G bond) to the UPSoutput terminal i

August 8, 1997Who does not need to use this installation manual?If your UNITY/I has all of the following, you do notneed to use the installation instr

25Table 11: Maximum Output Current per Phase (Leg)304 Voltage and Phase CheckNOTE: If the UPS has external batteries, see the instructions that came w

26❑ 5. In order for the UNITY/I to provide the desired output voltage(s), you must program theOutput Voltage Reference parameter (Parameter 05).The Ou

27❑6. At the external bypass switch, make sure that the voltage from AC line to the bypass switch isclose to the voltage from the UPS to the loads. Us

28Section 400: Additional RequirementsNOTE: The remote Emergency Power Off (EPO) switch and service panel warning label describedbelow are required to

29Appendix: External Bypass SwitchesIf your UPS does not have output receptacles, you may have an external UPS Bypass Switch with anAC Line Disconnect

ContentsIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1Sec

Tables and FiguresTablesTable 1 UNITY/I Frequency, Voltage, and Bypass Switch Combinations . . . . . . . . . . . . . . . . .3Table 2 Best Power Ext

1IntroductionThis UNITY/ITMInstallation Manual is for models that do not have an input plug. A qualified electri-cian must install the AC wiring for t

2Section 100: Before Installing the UPS101 Pre-Installation CheckFind the following information. Use the labels on the equipment.UPS:• kW rating (see

3Table 1: UNITY/I Frequency, Voltage, and Bypass Switch Combinations1BBM = Break-Before-Make, MBB = Make-Before-Break. See the Appendix for more infor

4102 Equipment DimensionsFigure 1: UPS Dimensions Table 3: UPS DimensionsTable 4: Battery Cabinet Dimensions Figure 2: Battery CabinetBCAUPSModelH