11 69-12842
STEP 7. CUSTOMIZE YOUR THERMOSTAT
Your Hone
y
well CT3550 thermostat comes preset to the most commonl
y
used settin
g
s. The settin
g
s are:
Gas or oil forced air furnace.
Smart Response technolo
gy
on.
Temperature °F.
12-hour clock format.
You can chan
g
e an
y
or all of these settin
g
s.
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 , , and , simultaneousl
y
until the screen shows.
You now can chan
g
e an
y
of these settin
g
s.

Fan Operation (Feature Number 2)

Fan operation options are:
0 = Gas or oil furnace. Furnace controls fan operation durin
g
heatin
g
(preset).
1 = Electric furnace or sin
g
le sta
g
e heat pump. Thermostat controls fan operation durin
g
heatin
g
.
To chan
g
e fan operation:
Press once.
Press Time to move to next feature or to return to main displa
y
.

System Type (Feature Number 4)

S
y
stem t
y
pe options are:
1 = Gravit
y
or steam s
y
stem.
3 = Hot water, hi
g
h efficienc
y
furnace (90% or better), or sin
g
le sta
g
e heat pump.
6 = Gas or oil forced air furnace (preset).
9 = Electric furnace.
M13347
FEATURE
NUMBER
OPTION
Run
Program
M13348