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Honeywell CT3650 manual Prepare For Installation, Package Contents, Tools Required

Models: CT3650

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STEP 1. PREPARE FOR INSTALLATION

❑Check Table 1, the compatibility chart, to make sure the thermostat is compatible with your system. If your system is not compatible, call Honeywell Customer Relations Center, toll-free, 1-800-468-1502.

Table 1. Compatibility Chart.


System Type	Compatibility with CT3650

Gas — Standing Pilot	Yes

Gas — Electronic Ignition	Yes

Gas-fired Boilers	Yesa
Gas — 750 Millivolt Heat	Yes

Oil-Fired Boilers	Yesa
Oil-Fired Furnace	Yes

Electric Furnace	Yes

Electric Air Conditioning	Yes

Baseboard Electric (120/240 line volt)b	No
Single Stage Heat Pump	Yes

Multistage Heat Pumps/Multistage Equipment	No

aCompatible with 2-wire Honeywell and Taco zone valves. Not compatible with 3-wire zone valves or 2-wire White Rodgers no. 1361 zone valves.

bNot compatible with any 120/240 volt system.

Package Contents

•	Thermostat	•	Wallplate
•	Screws and anchors	•	Wiring labels
•	3 Energizer® AA batteries	•	Owners manual

Tools Required

•Screwdriver

•Drill

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69-1285—2

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Honeywell CT3650 manual Prepare For Installation, Package Contents, Tools Required

Contents

OWNER’S GUIDE Table of ContentsHoneywell CT3650 PROGRAMMABLE THERMOSTATMERCURY NOTICE Total comfort temperature management with Smart Response TechnologyTIME /TIME 69-1285-2Set Day/Time Temporary Setting In RecoveryHold for DaysTools Required STEP 1. PREPARE FOR INSTALLATIONPackage Contents Replacing a Thermostat that has Six or More Wires Special InstallationsReplacing a Thermostat that has Three Wires STEP 2. REMOVE OLD THERMOSTATSTEP 3. MOUNT THERMOSTAT WALLPLATE STEP 4. WIRE WALLPLATE TERMINALS Table 2. Terminal Designations on Old and New Thermostats STEP 5. INSTALL THE BATTERIESConnect To DescriptionB. PRESS LOWER EDGE OF CASE TO LATCH STEP 6. MOUNT THE THERMOSTATA. ENGAGE TABS AT TOP OF THERMOSTAT AND WALLPLATE STEP 7. CUSTOMIZE YOUR THERMOSTAT Fan Operation Feature NumberSystem Type Feature Number Time Format Feature Number Smart Response Technology Feature Numberto move to next feature or Press TimeSTEP 8. SET THE CLOCK Factory Set Function Feature NumberSTEP 9. PROGRAMMING Set Current Day and TimeTable 3. Personal Programming Table Press Program the First Daywhen the entire week is programmed Clear a Program Period Copy a Dayfor approximately 3 seconds until the time and temperature clear PressDaylight Savings Time Key Change Temperature Setting Indefinitely HoldSTEP 10. OPERATING YOUR THERMOSTAT Set the System Key STEP 11. SET THE FAN AND SYSTEM KEYSet the Fan Key Then… IF YOU HAVE A PROBLEMTable 4. Solution Guide Toll-Free Customer Assistance SMART RESPONSE TECHNOLOGY2-WIRE HEAT-ONLY WIRING DIAGRAMS3-WIRE HEAT ONLY WITH FAN JUMPER INTACT 4-WIRE SINGLE-STAGE HEAT PUMP JUMPER INTACT5-WIRE HEAT/COOL WITH DAMPER 5-WIRE HEAT/COOLJUMPER REMOVED JUMPER INTACTLimited One-Year Warranty Home and Building Control Home and Building ControlHoneywell 1985 Douglas Drive North