UPS INSTALLATION PLAN AND UNPACKINGEaton 9395 UPS (225–275 kVA) Installation and Operation Manual 164201683 Rev 3 www.eaton.com/powerquality 3-7 The UPS cabinet is shipped with a debris shield covering the ventilation grill on topof the unit. Do not remove the debris shield until installation is complete. However,remove the shield before operating the UPS. Once the debris shield is removed, donot place objects on the ventilation grill. In a common battery system, single and multiple UPMs are powered from onecommon battery source. In a separate battery system, multiple UPMs are eachpowered from separate battery sources. UPMs in distributed bypass and parallel systems must use a separate batterysystem. On a UPS configured for separate rectifier inputs, all sources that feed the separaterectifier inputs must be derived from a common ground point. A Field Installed UPM (FI-UPM) is always designated as UPM 4.If the power rating listed on the nameplate of the installed UPS is not found in thefollowing tables, wire the UPS using the fully rated specifications. Otherwise,calculate the required wire, conduit, and breaker sizes using the following guidelinesin addition to those already listed in paragraph 3.2.2: Select wire size according to the UPS nameplate. Do not use wire larger than the largest size listed in Table 3‐4 through Table 3‐6. Use terminal recommendations from Table 3‐7 through Table 3‐10. Size and number of conduits must not exceed those listed in Table 3‐11. Select overcurrent protection input, battery, and output breakers according to theUPS nameplate rated for either 80% or 100%. Follow all applicable NEC and local codes.
