Instruction/ maintenance manual of the product 420 VA American Power Conversion
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990 - 1853 C, 10 /2005 User Manual English APC Smart - UPS ® SC 420/620 VA 110/120/230 Vac Tower Uninterruptible Power Supply.
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1 Introduction The APC Uninterruptible Power Supply (UPS) is designed to prevent blackouts, brow n outs, sags, and surges from reaching your eq uipment. The uninterruptible power supply (UPS) filters small uti l- ity line fluctuations and isolates your equipment from large disturbances by internally disconnecting from the utility line.
2 2: S TART UP Connect the Battery Œ • Connect black wire to battery. (Red wire is already connected.) Note: Small sparks at the poin t of battery conne c tion are normal. Ž • Connect Equipment to the UPS Rear Panels 110/120 V: 230 V: § 230 V models: The top off - white outlet pr o- vides surge protection only.
3 Connect the UPS to the Network (if Applicable) Network Connectors Serial Port Telephone/Network Surge Suppression Ports Use only interface kits a p proved by APC. Use only the supplied cable to connect to the Serial Port. A standard ser ial interface cable is inco m- patible with the UPS.
4 3: O PERATION Front Display Panel 110/120 V 230 V I NDICATOR D ESCRIPTION On L ine The UPS is supplying utility power to the connected equipment. On Ba t tery Th e UPS is supplying battery power to the connected equipment. Ove r load The connected loads are drawing more than the UPS power rating.
5 4: U SER C ONFIGURABLE I TEMS N OTE : S ETTINGS ARE ADJUSTED THROUGH P OWER C HUTE B USINESS E DITION SOFTWARE F UNCTION F ACTORY D E FAULT U SER S E LECTABLE C HOICES D ESCRIPTION Automatic Self - .
6 N OTE : S ETTINGS ARE ADJUSTED THROUGH P OWER C HUTE B USINESS E DITION SOFTWARE F UNCTION F ACTORY D E FAULT U SER S E LECTABLE C HOICES D ESCRIPTION Low Battery War n ing 2 minutes PowerChute Business Edition sof t ware provides automatic, una t- tended shutdown when approx i- mately 2 mi n utes of battery ope r- ated runtime r e- mains.
7 5: S TORAGE AND M AINTENANCE Sto rage Store the UPS covered in a cool, dry location, with the ba t tery fully charged. At - 15 to +30 ° C (+5 to +86 ° F), charge the UPS ba t tery every six months. At +30 to +45 ° C (+86 to +113 ° F), charge the UPS ba t tery every three months.
8 6: T ROUBLESHOOTING , S HIPPING , AND S ERVICE Use the chart below to solve minor UPS installation and operation problems. Refer to www.apc.com with co m plex UPS problems, and f or battery runtime charts. P ROBLEM AND / OR P OSSIBLE C AUSE S OLUTION UPS WILL NOT TURN ON UPS not connected to utility power supply.
9 P ROBLEM AND / OR P OSSIBLE C AUSE S OLUTION THE OVERLOAD LED IS ILLUMINATED AND THE UPS EMITS A SU S TAINED ALARM TONE The UPS is overloaded. The connected equipment is dra w- ing more VA than the UPS can sustain. The connected eq uipment exceeds the specified “maximum load.
10 Shipping and Service Prepare the UPS for shipping: Shutdown and disconnect any equipment attach ed to the UPS. Shut down the UPS, and di s connect the UPS from the utility power outlet. Disconnect the battery. If the UPS requires service do not return it to the dealer.
11 7: R EGULATORY AND W ARRANTY I NFORMATION 110/120 V models This equipment has been tested and found to comply with the limits for a Class A digital device, pu r- suant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial enviro n ment.
12 Limited Warranty American Power Conversio n (APC) warrants its products to be free from defects in materials and workmanship for a period of two years from the date of purchase. Its obligation under this warranty is limited to repairing or replacing, at its own sole o p tion, any such defective prod ucts.
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