![background image](http://html1.mh-extra.com/html/carrier/extra-xt/extra-xt_operators-manual_2563849014.webp)
11
62--10601
Setpoints of -22
°
F to +89
°
F (-30
°
C to +32
°
C) may be entered via
the keypad. The controller always retains the last entered setpoint
in memory. If no setpoint is in memory (i.e. on initial startup), the
controller will lock out the run relay and flash “SP” on the left hand
display until a valid setpoint is entered. The setpoint may be
changed up or down in 1
°
increments by pressing and releasing
either the UP ARROW or DOWN ARROW key.
You can not change setpoint when unit is in Pretrip or when viewing
Unit Data or Functional Parameters.
Pressing the ENTER key will cause the new displayed setpoint
value to become active. If the display is flashing and the new value
is not entered, after 5 seconds of no keyboard activity, the display
will flash for 5 seconds and then revert back to the last setpoint.
All other keys are active at this time and may be pushed while the
display is flashing.