Honeywell Thermostat T8665A User Manual download pdf (Page 34)

34 69-1536–3

5. Press Fan key to modify fan operation. Selecting Auto means the fan runs only when the

heating or cooling equipment is operating. Selecting On means the fan runs continuously

for the entire schedule period.

6. Press Heat/Cool Settings key to make selections for the opposite system setting (either

Heat or Cool).

Fan

Heat/Cool

Settings

M14591

Set Program

Mon

Wake

System

Fan

Heat

Auto

Cool

Setting

Press Heat/Cool Settings key to select the cooling system

(if you previously set the heating temperature). The

current setting displays. Example display shows

the cooling system previously set for 78°.

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Honeywell Thermostat T8665A User Manual Page 34