Carrier EVERGREEN HFC-134A Installation Instructions Manual

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

37WIRING THE FIELD WIRING TERMINAL STRIPS —This section describes how to wire the field wiring terminalstrips shown in Fig. 46 and 47. The control terminal blocks aremounted to the inside of the enclosure, above and below thecontrol 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. 48. The location ofthe Communications Interface Board is shown in Fig. 6.4. 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. 47. 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. 49.CONNECT CONTROL OUTPUTS — Connect auxiliaryequipment, chilled and condenser water pumps, and sparealarms as required and indicated on job wiring drawings.CONNECT STARTER — The 23XRV is equipped with aunit-mounted VFD starter (Fig. 50).Remove the VFD shipping bracket shown in Fig. 16.IMPORTANT: Be sure to ground the power circuit inaccordance with the National Electrical Code (NEC),applicable local codes, and job wiring diagrams. Also,make sure correct phasing is observed for proper rotation.Do not punch holes or drill into the top surface of thecontrol center. Knockouts are provided in the back of thecontrol center for wiring connections.