Eaton 93PM IAC-T Series Installation And Operation Manual

82 Eaton 93PM Integrated Accessory Cabinet-Tie (50 kW and 100 kW IAC-T) Installation and Operation Manual P-164000371—Rev 0566..44..11 TTrraannssffeerrrriinngg tthhee UUPPSS ttoo MMaaiinntteennaannccee BByyppaassss ((IIAACC--TT wwiitthh aa MMIISS aanndd aa MMBBPP))CAUTIONOnly trained personnel familiar with the operation of this equipment should transfer loads. Failure to follow thistransfer sequence may cause loss of power to loads.CAUTIONIn Bypass mode, the critical load is not protected from commercial power interruptions and abnormalities.To transfer the load to maintenance bypass:1. Open the front door by lifting the latch from the bottom, turning to the right (counterclockwise), andswinging the door open.2. Transfer the UPS from normal mode to bypass mode. Refer to the applicable Eaton 93PM UPS Installationand Operation manual, listed in paragraph 1.7 For More Information, for UPS operating procedures.CAUTIONFailure to close the MBP before opening the MIS will result in the loss of power to the critical load.3. Close the MBP4. Slide the interlock bar to the right (see Figure 44).5. Open the MIS.The critical load is supplied by the maintenance bypass source.6. Open the MOBs7. Close the door and secure the latch.8. Shut down the UPS. Refer to the applicable Eaton 93PM UPS Installation and Operation manual, listed inparagraph 1.7 For More Information, for UPS operating procedures.66..44..22 TTrraannssffeerrrriinngg tthhee UUPPSS ffrroomm MMaaiinntteennaannccee BByyppaassss ((IIAACC--TT wwiitthh aa MMIISS aanndd aa MMBBPP))CAUTIONOnly trained personnel familiar with the operation of this equipment should transfer loads. Failure to follow thistransfer sequence may cause loss of power to loads.To transfer the load from maintenance bypass:1. Open the front door by lifting the latch from the bottom, turning to the right (counterclockwise), andswinging the door open.2. Close the MOBs3. Start the UPS in bypass mode. Refer to the applicable Eaton 93PM UPS Installation and Operation manual,listed in paragraph 1.7 For More Information, for UPS operating procedures.CAUTIONFailure to close the MIS before opening the MBP will result in the loss of power to the critical load.4. Close the MIS.Integrated Accessory Cabinet-Tie Operating Instructions