Honeywell CT3650 manual Install the Batteries, Connect To Description

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Table 2. Terminal Designations on Old and New Thermostats.

 

 

 

Terminal on Old Thermostat

Connect To

Description

 

 

 

R, RHa, 4, V

R

Power

Rc, Ra

Rc

Power for cooling

W, W1, H

W

Heat

Y, Y1, M

Y

Cooling

 

 

 

G, F

G

Fan

 

 

 

O

O

Changeover in cool. (Single stage heat pump only).

 

 

 

Bb

Bb

Changeover in heat. (Single stage heat pump only).

Cc, Xc, Bb

Do not connect.

Transformer common

W2, H2

Do not continue installation.

Second stage heat.

 

Call 1-800-468-1502.

 

Y2

Second stage cool.

 

 

 

 

aIf both RH and R terminals are present on existing thermostat, remove jumper and connect Rh to R and R to Rc.

bDo not connect both O and B when wiring to a single stage heat pump. Connect O to O. Tape off B.

cTape off end of the wire with electrical tape and push the taped wire back into the wiring hole in the wall.

STEP 5. INSTALL THE BATTERIES

IMPORTANT

Three AA alkaline batteries are included with the thermo- stat. Batteries must be installed for programming and opera- tion of the thermostat and the heating/cooling system.

❑Install the batteries in the wallplate so the positive terminals all point up (see illustration).

❑If the thermostat is already mounted on the wall, remove the thermostat by placing your thumb between the thermostat and wallplate and pulling the thermostat up and away as shown.

WALLPLATE

B

R RC O W Y G

INSTALL 3 AA ALKALINE BATTERIES

 

AS SHOWN, POSITIVE (+) TERMINALS

M10622

TOWARD TOP.

9

69-1285—2

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Contents Honeywell CT3650 Table of ContentsMercury Notice 69-1285-2 DST Compatibility Chart System Type Compatibility with CT3650 Prepare for InstallationRemove OLD Thermostat Special InstallationsMount Thermostat Wallplate Wire Wallplate Terminals Connect To Description Install the BatteriesMount the Thermostat Customize Your Thermostat Fan Operation Feature NumberSmart Response Technology Feature Number SET the Clock ProgrammingSet Current Day and Time Mon Tue Wed Thu Fri Sat Sun Program the First Day Clear a Program Period Copy a DayChange Temperature Setting Indefinitely Hold Operating Your ThermostatDaylight Savings Time Key SET the FAN and System KEY Set the Fan KeySet the System Key Then… If YOU have a ProblemToll-Free Customer Assistance Smart Response TechnologyWire HEAT-ONLY Jumper Intact Wiring DiagramsWire HEAT/COOL Limited One-Year Warranty Home and Building Control

CT3650 specifications

The Honeywell CT3650 is a state-of-the-art thermostat designed for optimum home climate control. This versatile device integrates advanced technology with user-friendly features, making it an ideal choice for homeowners seeking convenience and efficiency in temperature regulation.

One of the primary features of the CT3650 is its Wi-Fi connectivity. This allows users to control their home heating and cooling systems remotely via a smartphone app, providing flexibility and ease of use. Whether at work or on vacation, homeowners can adjust their thermostat settings from anywhere, ensuring comfort upon their return and promoting energy savings while away.

The CT3650 incorporates a color touchscreen display, offering an intuitive interface that makes navigation straightforward. Users can easily set schedules, view current conditions, and make adjustments with a simple tap. The vibrant display also allows for customizable color options, enhancing its aesthetic appeal to fit seamlessly into any home decor.

Another noteworthy characteristic of the Honeywell CT3650 is its Smart Response Technology. This feature learns the heating and cooling behaviors of the home and adjusts the temperature in advance to reach the desired setting by the programmed time. This not only enhances comfort but also increases energy efficiency, helping to reduce utility bills.

The CT3650 thermostat is compatible with various heating and cooling systems, including multi-stage systems, gas, electric, and heat pump configurations. This versatility ensures that homeowners can utilize the CT3650 with their existing systems without additional modifications.

Energy-saving capabilities are a highlight of the CT3650. It features an Adaptive Intelligent Recovery function, which calculates the optimal run time for the system to reach the target temperature at the scheduled time. This minimizes energy waste and maximizes efficiency, contributing to a more sustainable home environment.

Furthermore, the Honeywell CT3650 facilitates easy installation and setup. With straightforward wiring and setup instructions, users can quickly integrate the thermostat into their existing HVAC systems without requiring professional assistance.

In conclusion, the Honeywell CT3650 thermostat combines cutting-edge technology with user-centric design. With its Wi-Fi connectivity, intuitive touchscreen, smart response features, and compatibility with multiple systems, it stands out as an excellent choice for homeowners aiming to achieve a comfortable and energy-efficient living space.
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