Carrier 69NT40-541-500 Operation And Service Manual
Also see for 69NT40-541-300: Operation and service
                                                                                                                                                                    | |
Contents
| 
T-363 7–32a. Removal:1. Disconnect all front wire harness connectors and move wiring out of way.2. The lower controller mounting is slotted. Loosen the top mounting screw (see Figure 7.24) and lift up and out.3. Disconnect the two back connectors (EC) and remove module.4. When removing the replacement controller from its packaging, note how it is packaged. When returning the oldcontroller for service, place it in the packaging in the same manner as the replacement. The packaging has beendesigned to protect the controller from both physical and electrostatic discharge damage during storage and transit.b. Installation:Install the module by reversing the removal steps.Torque values for mounting screws (item 2, see Figure 7.24) are 0.23mkg (20 inch-pounds). Torque value for theconnectors is 0.12mkg (10 inch-pounds).7.20.5 Battery ReplacementStandard Battery Location (Standard Cells):a. Turn unit power OFF and disconnect power supply.b. Slide bracket out and remove old batteries. (See Figure 4.4, Item 8.)c. Install new batteries and slide bracket into control box slot.CAUTION!Use care when cutting wire ties to avoid nicking or cutting wires.Standard Battery Location (Rechargeable Cells):a. Turn unit power OFF and disconnect power supply.b. Disconnect battery wire connector from control box.c. Slide out and remove old battery and bracket. (See Figure 4.4, Item 8.)d. Slide new battery pack and bracket into the control box slot.e. Reconnect battery wire connector to control box and replace wire ties that were removed.Secure Battery Option (Rechargeable Cells Only):a. Turn unit power OFF and disconnect power supply.b. Open control box door and remove both the high voltage shield and clear plastic rain shield (if installed).c. Disconnect the battery wires from the “KA” plug positions 14, 13, 11.d. Using Driver Bit, Carrier Transicold part number 07-00418-00, remove the 4 screws securing the display moduleto the control box. Disconnect the ribbon cable and set the display module aside.NOTEThe battery wires must face toward the right.e. Remove the old battery from the bracket and clean bracket surface. Remove the protective backing from thenew battery and assemble to the bracket. Secure battery by inserting the wire tie from the back of thebracket around the battery, and back through the bracket.f. Reconnect the ribbon cable to display and re-install the display.g. Route the battery wires from the battery along the display harness and connect the red battery wire and oneend of the red jumper to “KA14,” the other end of the red jumper wire to “KA11,” and the black wire to “KA13.”h. Replace wire ties that were removed. |
Related manuals for Carrier 69NT40-541-300
This manual is suitable for:
manualsdatabase
Your AI-powered manual search engine