INSTALLATIONEATON BladeUPS® (12 kVA) User's Guide 164201649 Rev 4www.eaton.com/powerquality 53UPS Installation into an Existing Parallel SystemW A R N I N GOnly qualified service personnel (such as a licensed electrician) shall perform the electrical installation. Riskof electrical shock.NOTE Do not make unauthorized changes to the UPSs; otherwise, damage may occur to your equipmentand void your warranty.Because of the redundant signal cable, UPSs can be installed into an existing systemwithout shutting down the system or disconnecting the load. If you prefer to removeinput power to install additional UPSs, see “Parallel System Shutdown” on page 73.To install one to five UPSs into an existing parallel (or parallel-ready) configuration:1. Verify that the UPSs to be paralleled are installed in individual rail kits in a rackcontaining a BladeUPS Bar.2. For each additional UPS being installed, verify that all circuit breakers are in theOFF (O) position.NOTE The load connector breaker controls the load connector only, not the output power cord.3. Unpack the Powerware Hot Sync CAN Bridge Card and verify that the card wasnot damaged during shipment (see Figure 40).Figure 40. Powerware Hot Sync CAN Bridge CardNOTE Eaton recommends installing the Powerware Hot Sync CAN Bridge Card in X-Slot CommunicationBay 2 (see Figure 32 on page 43), leaving the X-Slot Communication Bay 1 available for other types of X-Slotcards.4. Remove the X-Slot communication bay cover on the UPS and retain the screws.5. Loosely install the Powerware Hot Sync CAN Bridge Card into the open X-Slotcommunication bay on the UPS rear panel.