How do I adjust the temperature differential for 2nd stage heating?

The OFFSET setting is shown as  number of degrees (default = 4F). It is similar in nature to the Swing setting, however,  it only effects the operation of the second (auxiliary) heating stage of heat pumps.  The auxiliary heat is there for when your system can’t keep up with your target temperature. 

You can adjust the value from 1F to 9F degrees to determine the number of degrees that the room temperature must fall below the set point, before requiring the second heating stage to turn on.  This can be used to conserve energy in cases where the second heating stage is costly to operate.

To Change the Offset Setting:

1. Make sure Dial is in RUN position:
2. Turn HEAT / OFF / COOL switch to the “OFF” position
3. Press HOLD for 2 seconds
4. You will see a number between 1 and 9 pop up in the display
5. Skip over the swing setting by hitting  “NEXT” to proceed to the OFFSET setting.
6. You will see “SET” and “OFFSET” in the display.  Press UP and Down buttons to set between 1F and 9F.   Wait 5 seconds to return to normal Run operation.

 A higher offset number results in energy savings while a lower offset number provides more comfort.