Changing Zone Setpoint

From the Standard Display, press the Enter Key to put the unit in Manual Zone Selection mode. Press the Enter Key again as required to select the desired zone. In the example shown ( Zone 2), Zone 2 has been selected.

Zone 2

When the desired zone is selected, press the UP ARROW Key and/or DOWN ARROW Key until the desired setpoint is shown. In the example ( Setpoint Change), the setpoint has been increased to 40°F (4.4°C) using the UP ARROW Key.

Setpoint Change

When the desired setpoint has been selected using the UP ARROW Key and DOWN ARROW Key, the ENTER Key must be pressed to confirm and load the new setpoint ( Enter Key).

Enter Key

The new setpoint of 40°F (4.4°C) will remain on the display after the ENTER Key has been pressed.

  • If the setpoint is changed using the UP ARROW Key and DOWN ARROW Key, the setpoint display will begin to flash 10 seconds after the last press of the Up Arrow or Down Arrow key as a reminder to press the ENTER Key.

  • The setpoint display will flash for 10 additional seconds. If at the end of this time the ENTER Key still has not been pressed to complete the setpoint change, the setpoint will return to the old setpoint and Alarm Code 127 Setpoint Not Entered will be set. The Alarm Icon will appear in the display.

Failure to confirm the new setpoint by pressing the ENTER Key within 20 seconds of changing the setpoint will result in no setpoint change. In addition, Alarm Code 127 Setpoint Not Entered is set, to indicate that the setpoint change was started but was not completed ( Setpoint Change Not Completed).

Setpoint Change Not Completed

The setpoint has returned to the old setpoint of 35°F (1.6°C) and the Alarm Icon has lighted indicating that Alarm Code 127 Setpoint Not Entered is set.

Important If the setpoint is changed using the UP ARROW Key or DOWN ARROW Key, the change must be confirmed by pressing the ENTER Key within 20 seconds of changing the setpoint.
  • If the ENTER Key is pressed, the setpoint change made with the UP ARROW Key and/or DOWN ARROW Key is accepted, the setpoint is changed, and the display returns to the Standard Display showing the new setpoint.

  • If the ENTER Key is not pressed within 20 seconds of making a change with the UP ARROW Key and/or DOWN ARROW Key, the setpoint is not changed and the display returns to the Setpoint Display showing the old setpoint. Alarm Code 127 Setpoint Not Entered is set and the Alarm Icon will appear on the display, to indicate that the setpoint change was started but not completed.