Carrier 19XRV Start-up And Service Instructions

Also see for AquaEdge 19XRV series: Start-up, operation and maintenance instructions Start-up and service instructions Installation instructions Start-up, operation and maintenance instructions User manual

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23Servicing the Drive1. Using recommended screwdriver = 6.4 mm (0.25 in.) flator T20 star, open access door. See Fig. 16.2. Check to be sure that the voltage between DC+ and DC-and from each DC terminal to the chassis is zero beforeproceeding. See Fig. 17.3. Remove the enclosure. See Fig. 18.REMOVING THE DRIVE — The dimensions and weightsspecified must be taken into consideration when removing thedrive. All lifting equipment and lifting components (hooks,bolts, lifts, slings, chains, etc.) must be properly sized and ratedto safely lift and hold the weight of the drive while removing it.See Fig. 19. The drive weights are as follows:• Drive weight for Frame 6: 85 lb.• Drive weight for Frame 7: 160 - 249 lb.When replacing the drive, reverse the procedures and tight-en to the torques for the Frames 6 and 7 Power Terminal Blockreferred to in Table 8.Table 8 — Frames 6 and 7 Power Terminal BlockRIGGING THE ENCLOSURE — Where overhead roomand/or clearance in front of the drive enclosure is insufficient toallow the drive to be safely removed from the enclosure, theentire enclosure may have to be removed from the chiller.The dimensions and weights specified must be taken intoconsideration when removing the enclosure. The total weightfor Frames 6 and 7, including drive weight and enclosure, is720 lb. All lifting equipment and lifting components (hooks,bolts, lifts, slings, chains, etc.) must be properly sized and ratedto safely lift and hold the weight of the enclosure and drivewhile removing. See Fig. 20A and Fig. 20B.WARNINGTo guard against possible personal injury and/or equipmentdamage:1. Inspect all lifting hardware for proper attachment be-fore lifting drive.2. Do not allow any part of the drive or lifting mecha-nism to make contact with electrically charged con-ductors or components.3. Do not subject the drive to high rates of accelerationor deceleration while transporting to the mounting lo-cation or when lifting.Do not allow personnel or their limbs directly underneaththe drive when it is being lifted and mounted.WARNINGDC bus capacitors retain hazardous voltages after inputpower has been disconnected. After disconnecting inputpower, wait five (5) minutes for the DC bus capacitors todischarge and then check the voltage with a voltmeter toensure the DC bus capacitors are discharged before touch-ing any internal components. Failure to observe this pre-caution could result in severe bodily injury or loss of life.Fig. 16 — Open Access DoorA19-1831FRAME MAXIMUM LUGWIDTHRECOMMENDEDTORQUETERMINALBOLT SIZE6 34.6 mm (1.36 in.) 11.3 N·m (100 in.-lb) M8 x 1.257 43.5 mm (1.71 in.) 11.3 N·m (100 in.-lb) M8 x 1.251 L1 L2 L3OI2 DC+ DC–0V0VLOCKOUT/TAGOUTMULTIMETERDC BUS TESTTERMINALSLOCATED INSIDEACCESS DOORFig. 17 — Check DC Bus TerminalsA19-181490°SLIDEENCLOSUREFORWARDLOOSENENCLOSUREFASTENERSFig. 18 — Removing EnclosureA19-1816