Carrier 17EX Start-up, Operation And Maintenance Instructions Manual

Also see for 17EX Series: Start up & operation manual Start-up, operation and maintenance instructions

Contents

6. Restore control system power (the LID displays, COM-MUNICATION FAILURE at the bottom of the screen).7. Access the SERVICE menu. Highlight and selectthe ATTACH TO NETWORK DEVICE screen. Pressthe ATTACH softkey. (The LID displays, UPLOAD-ING TABLES. PLEASE WAIT; then, COMMUNICA-TION FAILURE.) Press the EXIT softkey.8. Turn off control power.9. Mount the new module in the unit control box using along-shaft Phillips screwdriver and the screw saved inStep 4 on page 98. Make sure that the green groundingwire is reinstalled along with the mounting screw.10. Connect the LID communication wires (CCN bus) andthe power wires. If CCN wiring has been attached to theCCN bus, disconnect the wires. Attach the sensor busplug and the input and output plugs.11. Carefully check all wiring connections before restoringpower.12. Restore control power and verify that the red and greenLEDs on the PSIO are functioning properly.13. The LID should indicate AVAILABLE MEMORY anda value. This value should start to decrease. (If it doesnot, check the LID wiring to the PSIO; ensure connec-tion to the proper plug.) The bottom of the screen dis-plays, UPLOADING TABLES, PLEASE WAIT.14. After the PSIO tables have been uploaded into the LID,access the STATUS01 screen. Move the highlight bar tothe TOTAL COMPRESSOR STARTS line. Press theSELECT softkey and then, using the INCREASE orDECREASE softkeys, change the value until it is thesame as the value from the old module. Press theENTER softkey to save this value.15. Move the highlight bar to the COMPRESSORONTIME line. Press the SELECT softkey and the, us-ing the INCREASE or DECREASE softkeys, changethis value until it matches the old module run hours. Pressthe SELECT softkey to save this value.16. Change the address of the PSIO In the CONTROLLERIDENTIFICATION table back to its previous value. Writethe address on the PSIO.17. Use the configuration sheets (pages CL-3 to CL-11) toinput set point, configuration, and schedule informationinto the PSIO. The TIME AND DATE table from theSERVICE menu must also be set. A Building Supervi-sor terminal can be used to download the old configu-ration into the PSIO.18. Access the CONTROL TEST table and perform the con-trol tests to verify all that all tested functions are work-ing properly.If the software version has been updated, a CCN down-load of the configuration will not be allowed. Configurethe PSIO by hand, and upload the PSIO into the net-work using the ATTACH TO NETWORK DEVICEscreen.19. Restore the chiller to normal operation; calibrate the mo-tor amps.PHYSICAL DATA AND WIRINGSCHEMATICSTables 15-26 and Fig. 56-61 provide additional informa-tion regarding compressor fits and clearances, physical andelectrical data, and wiring schematics for operator conve-nience during troubleshooting.Fig. 55 — 4-In/2-Out Module99