• Topic ID: id_15460355
  • Version: 3.0
  • Date: Jun 15, 2020 10:55:32 PM

Intercom Board Replacement

Prerequisites

Overview

Procedure

  1. Remove right side cover.
    2. Notice Image
    • notice
    • Always turn OFF the HVDC before the 120 VAC. Turning OFF 120 VAC power before HVDC power can result in equipment damage.
  2. Turn off the three (3) main power switches (Axial Drive, HVDC, 120VAC) on the Service Switch Panel.

    Figure 1. Intercom Board location

  3. Disconnect the control cable.
  4. Remove the cover assembly by removing 2 nuts and washers from one side and loosening the 2 on the other side.
    note:

    Be careful not to lose the nuts and washers. Also notice that the flat washer is installed first, then the lock washer and then the nut.

    Figure 2. Hardware order

  5. Remove 4 screws that secure the intercom board to the cover.
  6. Install the new intercom board in reverse order. Verify that J2 jumper is in auto position.

Finalization

  1. Perform the Intercom board check and adjustment defined by Intercom Adjustment.
  2. Make sure cover is tightened if removed for adjustments.