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How do you adjust the hold open time on a 4600 (4630/4640) operator?

To adjust the hold open time on a 4600 (4630/4640) operator:

  • Press the "MODE" button on the control box 1 time to get into programming mode. The "YELLOW" mode indicator LED next to "HOLD OPEN TIME" will be lit, and the current hold open time on the display.
  • Press the "UP" or "DOWN" buttons to increase/decrease the desired hold open time. Each increment is equal to 1/3 of a second. (Example: 21 on the display equals a 7 second hold open time.)

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