RTH7400/RTH7500
System setup
Manual/Auto changeover (RTH7500 only)
Function
0300
Press
s
/
t
to select manual or automatic changeover:
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.
Temperature format (°F/°C)
Function
0320
Press
s
/
t
to set the temperature display format:
Options:
0
Fahrenheit
1
Celsius
CAUTION:
To avoid possible compressor damage, set to option
0
if the outside
temperature drops below 50°F (10°C).