Honeywell RTH6450D1009-E1 User Manual

Programmable

RTH6350/RTH6450

Thermostat

RET93E/RET95E

Series

Owner’s Manual

Read and save these instructions.

For help please visit yourhome.honeywell.com

Installation is Easy

1. Label wires and remove your old thermostat

2. Install and wire your new thermostat

3. Set your new thermostat to match your heating/cooling system

• It is preset for the most common system

Do you need assistance? We are here to help.

Call 1-800-468-1502 for wiring assistance before returning the thermostat to the store.

ATTENTION: MERCURY RECYCLING NOTICE

NO MERCUR

MERCURIO

M28400

This product does not contain mercury. However, this product may replace a product that contains

NO BOTE

NOTICE: To avoid possible compressor damage, do not run air conditioner if the outside temperature drops below 50°F (10°C).

mercury. Mercury and products containing mercury should not be discarded in household trash.

For more information on how and where to properly recycle a thermostat containing mercury in the United States, please refer to the Thermostat Recycling Corporation at www.thermostat-recycle.org.

For mercury thermostat recycling in Canada, please refer to Switch the Stat at www.switchthestat.ca

Customer assistance

For assistance with this product, please visit

http://yourhome.honeywell.com.

Or call Honeywell Customer Care toll-free at

1-800-468-1502.

To save time, please note your model number and date code before calling.

Remove battery holder; model number is on the battery holder.

® U.S. Registered Trademark. Patents pending. US Patent No. D542,677 and other patents pending.

Table of contents

Installation

Installation ............................................3

Advanced Installation ...........................9

About your new thermostat

Controls and Home screen

quick reference ...................................11

Preset energy-saving schedules ........13

Programming and operation

Setting the clock .................................13

Adjusting program schedules .............14

Overriding schedules temporarily ......15

Overriding schedules permanently ....15

Compressor protection .......................17

Replace batteries ...............................18

Appendices

Troubleshooting ..................................18

Limited warranty .................................20

1 Turn Off Power to Heating/Cooling System

Circuit breaker

box

Heating/cooling system

power switch

M28100

2 Remove Old Thermostat

Remove old thermostat but leave wallplate with wires attached.

If you have an older thermostat with a

Do not remove wallplate yet

sealed mercury tube, turn to page 2 for proper disposal instructions.

Terminal designation

3 Label Wires with Tags

Label the wires using the supplied wire labels as you disconnect them.

Wire Labels

Terminal designation

4 Separate Wallplate from New Thermostat

Remove wallplate from the new thermostat and mount onto wall.

M28343

Wallplate

5 Mount Wallplate

MCR31270A

Mount the new wallplate using the included screws and anchors.

M28345

Drill 3/16-in. holes for drywall Drill 3/32-in. holes for plaster

6 Connect Wires

Simply match wire labels. If labels do not match letters on the thermostat, check Alternate Wiring on page

6 and connect to terminal as shown (see notes, below).

Remove metal jumper if you have both R and

Rc wires.

W2 GGW

YYRRRcY2

We are here to help. Call 1-800-468-1502 for wiring assistance.

MCR31274B

MCR31276A

Alternate Wiring (Conventional Systems)

If labels do not match terminals, connect wires as shown here (see notes, below).

Y2C

XF B

RYW

RHY1

4M V

Y2 W2 GW YR

If wires will be connected to both R and Rc terminals, remove metal jumper.

Do not use C, X or B. Wrap bare end of wire with electrical tape.

Wiring—Heat Pump

If E and Aux do not each have a wire connected, use a small piece of wire to connect them to each other.

Aux

O/BLG

YRRRc

Alternate Wiring (Heat Pump Only)

MCR31275B

If labels do not match letters on the thermostat, check the chart below and connect to terminal as shown here (see notes, below).

X B

AUX

XWFH

W1 W2

Aux

VY1

VRM

RcG O/B

Leave metal jumper in place, connecting R and Rc terminals.

If your old thermostat had both V and VR wires, stop now and contact a qualified contractor for help.

If your old thermostat had separate O and B wires, wrap the B wire in electrical tape and do not connect.

If your old thermostat had Y1, W1 and W2 wires, stop now and contact a qualified contractor for help.

If there were seperate wires on E and Aux, place both wires in the Aux/E

terminal.

M28347

7 Install Batteries

Install two AA alkaline batteries.

Back of thermostat

8 Install Thermostat onto

Wallplate

Install thermostat onto the wallplate on the wall.

9 Turn Power Back On

Turn the power back on to the heating/cooling system.

Circuit breaker box Heating/cooling system

M28346

power switch

10 If your system type is...

If your system type is:

q Single Stage Heat and Cool

Congratulations, you’re done!

If your system type is:

q Multistage Heat and Cool q Heat Pump* without Backup Heat q Heat Pump* with Backup Heat q Heat Only q Cool Only

Continue with Advanced Installation to match your thermostat to your system type.

*Heat Pump—an air conditioner that provides cooling in the summer, and also runs in reverse in the winter to provide heating.

If you are not sure of your system type or if you have other questions, call us toll-free at 1-800-468-1502.

This thermostat works on 24 volt or 750 mV systems. It will NOT work on 120/240 Volt systems.

Advanced Installation

Enter System Setup

To enter system setup, press and hold both the s and FAN buttons until the display changes (approximately 5 seconds).

Changing Settings

1. Press the s or t button to change the setting.

2. Press NEXT to advance to the next function.

3. Press DONE to exit and save settings.

M28348

Function Setting

Done Next

M28349

Function

1 select the type of system

2 select whether your

3 select your heating

5 select your Stage 1

6 select your Stage 2

8 Emergency Heat Cycle

12 select Manual or Auto

13 select Smart Response®

14 select Fahrenheit or

Description

Press the s or t button to Setting

you have in your home

changeover valve is used in heating or cooling

system and fan operation

heating system and optimize its operation

Rate (heat pumps only)

Changeover

Technology

Celsius temperature display

0 Heating & cooling: Gas, oil or electric heating with central

air conditioning.

1 Heat pump: Outside compressor provides both heating and

cooling without backup or auxiliary heat.

2 Heating only: Gas, oil or electric heating without central air

conditioning.

3 Heating only with fan: Gas, oil or electric heating without

central air conditioning. (Use this setting if you could turn the fan on and off with a fan switch on your old thermostat.)

4 Cool only: Central air conditioning only. 5 Heat pump: Outside compressor provides both heating and

cooling with backup or auxiliary heating.

6 Heat/Cool Multiple Stages: Two heat stages (wires on W

and W2), two cooling stages (wires on Y and Y2).

7 Heat/Cool Multiple Stages: Two heat stages (wires on W

and W2), one cooling stage (wire on Y).

8 Heat/Cool Multiple Stages: One heat stage (wire on W),

two cooling stages (wires on Y and Y2).

0 Cooling changeover valve: Use this setting if you

connected a wire labeled “O” to the O/B W wire terminal.

1 Heating changeover valve: Use this setting if you

connected a wire labeled “B” to the O/B W wire terminal.

0 Gas or oil heat: Use this setting if you have a gas or oil

heating system (system controls fan operation).

1 Electric heat: Use this setting if you have an electric

heating system (thermostat controls fan operation).

5 Gas or oil furnace: Use this setting if you have a standard

gas or oil furnace that is less than 90% efcient.

9 Electric furnace: Use this setting if you have any type of

electric heating system.

3 Heat pump, hot water or high-efficiency furnace: Use

this setting if you have a hot water system or a gas furnace

of greater than 90% efciency.

1 Gas/oil steam or gravity system: Use this setting if you

have a steam or gravity heat system.

5 Gas or oil furnace: Use this setting if you have a standard

gas or oil furnace that is less than 90% efcient.

9 Electric furnace: Use this setting if you have any type of

electric heating system.

3 Heat pump, hot water or high-efficiency furnace: Use

this setting if you have a hot water system or a gas furnace

of greater than 90% efciency.

1 Gas/oil steam or gravity system: Use this setting if you

have a steam or gravity heat system.

9 Electric furnace: Electric heating systems.

0 Manual Changeover: (Heat/Off/Cool) 1 Automatic Changeover: (Heat/Off/Cool/Auto) Automatically

turns on heat or cool based on room temperature.

1 Smart Response Technology ON 0 Smart Response Technology OFF

0 Fahrenheit temperature display (°F) 1 Celsius temperature display (°C)

About your new thermostat

M28401

Your new Honeywell thermostat has been designed to give you many years of reliable service and easy-to-use, push-button climate control.

• Easy-to-follow menu programming.

• One-touch temp control overrides program schedule at any time.

• Large, clear, backlit display is easy to read — even in the dark.

• Displays both room temperature and temperature setting.

• Removable battery holder for fast, easy replacement.

• Built-in compressor protection.

Thermostat controls

Digital display Battery holder

Temperature buttons

Press to adjust temperature settings.

Hold button

Press to override programmed temperature control.

Function buttons

Press to select the function displayed just above each button. (Functions change depending on the task.)

Display screen

Heat

M28402

Current inside temperature

Smart Response®

technology in effect

Current program period

Wake/Leave/Return/Sleep

Set clock/day/schedule

Press to set time, day or program schedules

Fan setting

Press the FAN button to select Auto or On.

In “Auto” mode (the most commonly used setting), the fan runs only when the heating or cooling system is on. If set to “On,” the fan runs continuously.

Inside

Wake Wed

Set Clock/Day/

Low battery warning

Replace Battery

In Recovery

Schedule

6:30

FanSystem

Auto

System setting

Press the SYSTEM button to select Heat, Cool or Off.

• Heat: Thermostat controls only the

heating system.

• Cool: Thermostat controls only the

cooling system.

• Off: Heating and cooling systems

are off.

• Auto: Thermostat automatically

selects heating or cooling depending on the indoor temperature.

Note: The Auto setting may not appear, depending on how your themostat was installed.

Heat

Setting

Heat On

Current time/day

Temperature setting

System status

On when “calling” for heating or cooling; flashes when waiting for compressor restart

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