LX: OPM_LPA_11U_5K0_10K_1US_V021 20 GE DE LanPro-11U UPS: Installation / User Manual 2.1 (US)GE Digital Energyg4.4.6.3 Notes concerning use / maintenance of a parallel systemECO-mode:If LanPro®-U units operate in parallel, the ECO-mode feature is not available.No-load shutdown:If LanPro®-U units operate in parallel, the no-load shutdown function is not available.Manual bypass:If you want to switch one of the UPSs to bypass operation using the manual bypass switch (switch isturned into position 2) then all UPSs in the parallel system have to be switched to bypass operation inorder to prevent damage.Maintenance:To isolate a unit from the redundant system:1. Switch off the UPS which has to be isolated,2. Remove the installation fuse from the input of that UPS (F1-4 in figure 17),3. Separate the output of the UPS from the output junction (S1-4 in figure 17).To re-enter the unit into the system:1. Reinstall the installation input fuse,2. Connect the output of the UPS to the output junction,3. Switch on the UPS.