System setup
Manual/Auto changeover (RTH7500 only)
Function
Press
0300
Options:
0
Manual changeover (Heat/Cool/Off).
1
Automatic changeover (Heat/Cool/Auto/Off). Note: System maintains minimum
3°F difference between heat and cool settings.
CAUTION: To avoid possible compressor damage, set to option 0 if the outside
temperature drops below 50°F (10°C).
Temperature format (°F/°C)
Function
Press
0320
Options:
0
Fahrenheit
1
Celsius
to select manual or automatic changeover:
s/t
to set the temperature display format:
s/t
RTH7400/RTH7500