Honeywell RTH6400 Series Quick Installation Manual page 20

Advanced Installation Guide
Function 12: Manual/Auto Changeover
Press the or
s
Changeover:
12
Done
0 Manual Changeover: (Heat/Off/Cool)
1 Automatic Changeover: (Heat/Off/Cool/Auto)
Automatically turns on heat or cool based on room
temperatures.
CAUTION: To avoid possible compressor
damage, set to option 0 if the outside
temperature drops below 50ºF (10ºC).
NOTE: System maintains a minimum 3ºF
difference between heat and cool settings.
Press to change setting. When
correct setting is selected,
press NEXT to display next
function.
M28351
69-2210ES—05
button to select Manual or Auto
t
0
Next
18
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