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Step 7. Customize Your Thermostat - Honeywell CT3550 Owner's Manual

Weekday, saturday and sunday programmable heat and/or cool low voltage (20 to 30 vac) thermostat and wallplate
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STEP 7. CUSTOMIZE YOUR THERMOSTAT

Your Honeywell CT3550 thermostat comes preset to the most commonly used settings. The settings are:
— Gas or oil forced air furnace.
— Smart Response technology on.
— Temperature °F.
— 12-hour clock format.
You can change any or all of these settings.
IMPORTANT
Always press the keys with your fingertip or a similar blunt tool. Sharp instruments like pens and pencil
points can damage the keyboard.
Press and hold down
You now can change any of these settings.
Fan Operation (Feature Number 2)
Fan operation options are:
— 0 = Gas or oil furnace. Furnace controls fan operation during heating (preset).
— 1 = Electric furnace or single stage heat pump. Thermostat controls fan operation during heating.
To change fan operation:
Press
once.
Press Time
System Type (Feature Number 4)
System type options are:
— 1 = Gravity or steam system.
— 3 = Hot water, high efficiency furnace (90% or better), or single stage heat pump.
— 6 = Gas or oil forced air furnace (preset).
— 9 = Electric furnace.
,
, and
, simultaneously until the screen shows.
to move to next feature or
Run
to return to main display.
Program
11
OPTION
FEATURE
NUMBER
M13347
M13348
69-1284—2

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