Carrier 23XRV Installation Instructions Manual

Also see for EVERGREEN 23XRV: Start-up and service instructions Start-up and service instructions Start-up and service instructions Installation instructions Product data

Contents

59WIRING THE FIELD WIRING TERMINAL STRIPS FORLF-2 VFD — This section describes how to wire the field wir-ing terminal strips shown in Fig. 63-68. The control terminalblocks are mounted to the inside of the enclosure, above andbelow the control panel.NOTE: Up to 30 v may be measured across open contactterminals on the hazardous voltage terminal strip.1. Turn off, lock out, and tag the input power to the drive.Wait five minutes.2. Verify that there is no voltage at the input terminals (L1,L2, and L3) of the power module.3. Verify that the status LEDs on the communicationsinterface board are not lit. See Fig. 69. The location of thecommunications interface board is shown in Fig. 10.4. Use a screwdriver to remove conduit twist outs in thecontrol panel. Do not punch holes or drill into the topsurface of the control center enclosure for field wiring.Knockouts are provided in the back of the control centerfor field wiring connections.5. Connect the control wiring as shown in Fig. 61. Tightenall connections to 7 to 9 in.-lb.WIRING THE FIELD WIRING TERMINAL STRIPS FORSTD TIER VFD — This section describes how to wire thefield wiring terminal strips shown in Fig. 65-67. The controlterminal blocks are mounted to the inside of the enclosure, onthe right side.NOTE: Up to 30 v may be measured across open contactterminals on the voltage terminal strip.1. Turn off, lock out, and tag the input power to the drive.Wait five minutes.2. Verify that there is no voltage at the input terminals (L1,L2, and L3) of the power module.3. Verify that the keypad and drive status indicators(Fig. 69) are not lit. The location of the drive status indi-cator is shown in Fig. 11.4. Mount incoming wiring using the knockouts on the panel.Do not drill holes into the top side of the enclosure.5. Connect the control wiring as shown in Fig. 67. Tightenall connections to 7 to 9 in.-lb.CONNECT CONTROL INPUTS — Wiring may be speci-fied for a spare safety switch, and a remote start/stop contactcan be wired to the starter terminal strip. Additional spare sen-sors and Carrier Comfort Network® modules may be specifiedas well. These are wired to the machine control panel asindicated in Fig. 70.CONNECT CONTROL OUTPUTS — Connect auxiliaryequipment, chilled and condenser water pumps, and sparealarms as required and indicated on job wiring drawings.CONNECT STARTER — The 23XRV chiller is equippedwith a unit-mounted VFD starter (Fig. 71).Remove the VFD shipping bracket shown in Fig. 22 fortypical installations. For seismic units, do not remove the ship-ping bracket.IMPORTANT: Be sure to ground the power circuit in accor-dance with the National Electrical Code (NEC), applicablelocal codes, and job wiring diagrams. Also, make sure cor-rect phasing is observed for proper rotation.CAUTIONDo not punch holes or drill into the top surface of thecontrol center. Knockouts are provided in the back of thecontrol center for wiring connections.