User Manual
Auxiliary controls on your Zoneline 
Duct Mode
This setting is used when the unit is installed with a 
duct adapter kit. If the unit is ducted, the Duct Mode 
needs to be set to ON. This increases the fan speed to 
ensure proper circulation.
Press MODE until a 7 appears in the first digit of the 
display. Press the + or - pad to set this switch to OFF 
“ “ or ON “ .” This is shown in the second digit of 
the display. Press AUX SET to lock in your selection and 
exit AUX SET mode. 
For Model AZ65, press MODE  to continue setting other 
functions. Pressing MODE on Model AZ45 will return 
you to AUX SET mode and an “AU” will appear in the 
display.
The default setting for Mode 7 is OFF.
MODE 7
Temperature Limiting
Temperature limiting is a feature that reduces energy 
costs by limiting the lowest temperature that can be 
obtained in cooling and the highest temperature that can 
be obtained in heating.
Press MODE until a 5 appears in the first digit of the 
display for Temperature Limiting cool mode. The COOL 
LED light on the main control will be lit. To change to heat 
mode, press MODE again and the HEAT LED light on the 
main control will be lit. 
To set the temperature limits, press the + or - pad . 
The second digit of the display will be between 0 and 7 
depending on the limit you want to set. The chart shows 
the limits available. Press AUX SET to lock in your selection 
and exit AUX SET mode, or press MODE to continue 
setting other functions.
The default setting for Mode 5 is as follows: 
Cool: 2 (66ºF to 85ºF) 
Heat: 5 (60ºF to 78ºF)
MODE 5
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  0 = 60°F to 85°F  0 = 60°F to 65°F
  1 = 64°F to 85°F  1 = 60°F to 70°F
  2 = 66°F to 85°F  2 = 60°F to 72°F
  3 = 68°F to 85°F  3 = 60°F to 74°F
  4 = 70°F to 85°F  4 = 60°F to 76°F
  5 = 72°F to 85°F  5 = 60°F to 78°F
  6 = 74°F to 85°F  6 = 60°F to 80°F
  7 = 76°F to 85°F  7 = 60°F to 85°F
Temperature Limiting Cool – Limit 2
Temperature Limiting Heat – Limit 5
Use Wall Thermostat
Setting this mode to ON will allow the unit to operate 
with a Class 2 Remote Control Wall Thermostat. 
Press MODE until a 6 appears in the first digit of the 
display for Class 2 mode. 
Press the + pad to turn the option OFF “ .” Press the 
+ pad to turn this option ON “ ”. This is shown in the 
second digit of the display. Press AUX SET to lock in your 
selection and exit AUX SET mode, or press MODE to 
continue setting other functions.
The default setting for Mode 6 is OFF.
When this mode is active, the display will show “Use Wall 
Thermostat” when any key is pressed.
MODE 6
Class 2 OFF
Class 2 ON
Duct Mode OFF
Duct Mode ON










