Honeywell RTH7500 Guide D'installation page 18

Installation Guide
System setup
0120
System Fan
Function
0120
Go Back Next
NOTE: Because of choices you make while programming, some functions
in the following pages may not appear.
20
Done
Setting
20
Done
1. Press SYSTEM, then press and hold FAN until the
screen changes.
2. Change settings as required (see pages 17-23).
Press
s t
Press NEXT to advance to next function.
Press DONE to save & exit.

to change setting.