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21 69-0939—3
Customer Assistance
Please read and follow the provided instructions for this thermostat. For additional information, go to
www.honeywell.com/yourhome or call our 24-hour automated information line at 1-800-468-1502.
Before calling, please have the following information available:
• Thermostat model number. (Located on back of thermostat).
• Thermostat date code. (Located below model number).
• Type of heating/cooling system (for example, hot water, warm air, oil, or gas).
• Location and number of wires connected to the thermostat.
SMART RESPONSE™ TECHNOLOGY
Your CT3600 is actually a small computer. The Smart Response technology calculates the correct time of day to turn
on your heating or cooling system. Smart Response technology considers the following information.
• Air temperature.
• Wall temperature.
• The time of day when you want the comfort temperature established.
When the thermostat activates Smart
Response technology, the thermostat
displays In Recovery, changes the
setpoint, and turns on the system.
• Your CT3600 thermostat learns from
experience. Each day it checks how
closely it hit the recovery target and then
adjusts the next day’s recovery start
time accordingly.
• It takes a few days after installation for
the thermostat to adjust to the local
weather, your lifestyle, the construction
of your home, and your heating/cooling
system.
• You can turn off Smart Response
technology by selecting Conventional
Recovery. See Step 8. Customize Your
Thermostat.
System Operating in
Energy Savings Mode
Recovery
Begins
Recovery
Continues
System Operating
in Comfort Mode
ENERGY
SAVINGS
PERIOD
RECOVERY FROM ENERGY SAVINGS
5:305:00 6:00 6:30
COMFORT
PERIOD
TIME
THERMOSTAT USES THE SAME SCHEME TO RETURN TO LOWER COMFORT TEMPERATURE DURING
THE COOLING SEASON.
M18591
62°F
64°F
66°F
68°F
Heat
System
Mon
In
Room
AM
Recovery
Sleep
Heat
System
Wake
Mon
Room
AM
Heat
Heat
System
Mon
In
Room
AM
Recovery
Sleep
Heat
System
Mon
Room
AM
Sleep
Heat
IF In Recovery IS DISPLAYED, PRESS TO SEE THE COMFORT SETPOINT.
1
1
TEMPERATURE