Honeywell TH8000 Series Owner's Manual page 17

Fan Schedule
Press Fan key while in the Scheduling Screen to program the System Fan. Choices available from
the Scheduling Screen:
Auto (default position)—fan runs with equipment. Programmable for all schedule periods (Wake,
Leave, Return and Sleep).
On—fan runs continuously (programmable for all schedule periods).
Circ—fan runs randomly for approximately 35% of schedule period (programmable for all schedule
periods).
Fan Status Displayed on Home Screen
If the Fan program is scheduled, Auto is shown and any programmable mode that is set;
for example, if during Wake period, Fan is set to Auto, only Auto is shown in the Fan area. However,
if during the Wake period, fan is scheduled to On, both Auto and On are shown. Auto indicates fan is
running its schedule; On indicates Fan schedule is set to On.
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