LENNOX M1-8 Backup, Standalone Mode Instructions
- October 30, 2023
- Lennox
Table of Contents
LENNOX M1-8 Backup, Standalone Mode
M1-8 Backup/Standalone Mode
Follow the steps below to make ECTO changes. Step 1: Turn ECTO dip switch on, its location can be seen below highlight. In green.
Step 2: The first thing you will see is 0.01 now press and hold black button (highlighted in orange above) to the right of the display until the number to the left of the decimal changes to 1.01 or 3.01. Repeat step 1 until display is showing 6.01.
Step 3: Once on 6.01 you will need to turn on dip switch labeled SHIFT on
(highlighted in yellow above) . The value you see
next is the count and this will need to be set 3 for standalone/backup mode
return sensor. Using the black button (highlighted in orange above) do a
normal press until 3 is being displayed. Then turn SHIFT dip switch off. This
will take you back to 6.01.
Step 4: Once back at 6.01 do a normal press on the black button and the numbers to the right of the decimal will change, you are looking for 6.02(occupied heat setpoint) once the 6.02 tune SHIFT dip switch on and it will display a count which can be changed by pressing the black button. The count that is used is NOT a temperature valve please see conversion table below.
6.03(unoccupied heat)
6.04 (occupied cooling)
6.05 (unoccupied cooling) will need to be set.
Follow sets highlighted in green with corresponding ETCO number for each setpoint.
Lennox uses a count system that is converted over to a temperature degree (please see chart below to cross reference) Example: Count 100 = 75F.
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