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Installer settings screen
The Installer settings screen is a hidden screen designed for installer use only. Do not change any settings in
this screen unless you are a qualified service technician. Changing these settings will affect the operation of the
heating/cooling system.
To enter this screen, go to the Main menu screen on page 7 and press and hold the two inner control buttons for
three seconds until the Installer settings screen (Figure 13) appears.
The Installer settings screen displays the current internal settings of the thermostat. You can view and change
the settings from this screen. Scroll to the desired function and press Plus (+) or Minus (-) to change the value.
Figure 13. Installer settings screen
Screen navigation buttons include:
Done. Return to the Main menu screen on page 7.
Plus. Increase value by 1 or change from N to Y.
Minus. Decrease value by 1 or change from Y to N.
Select. Select menu item to go to a submenu.
Up. Move selection pointer up.
Down. Move selection pointer down.
Installer Settings
Done
+
-
Select
Display Lock N
Service Mode
Network Settings
MaxHeat SP 109
Up
Down
Done
Plus
Minus
Select