Honeywell PRO TH4000 series User manual

Operating
Manual
PRO TH4000 Series
Programmable Thermostat
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Read and save these instructions.
® U.S. Registered Trademark. Patents pending.
Copyright © 2009 Honeywell International Inc. All rights reserved.
Quick Reference Card
Grasp and pull to see basic operating instructions at a glance.
This manual covers the following models:
TH4110D: For 1 Heat/1 Cool systems
TH4210D: For 2 Heat/1 Cool heat pump systems only
(Pull thermostat from wallplate and turn over to find model number.)
Need Help?
For assistance with this product please visit http://yourhome.honeywell.com
or call Honeywell Customer Care toll-free at 1-800-468-1502
CAUTION: EQUIPMENT DAMAGE HAZARD.
To prevent possible compressor damage, do not operate cooling system when outdoor
temperature is below 50°F (10°C).
MCR29469

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About your new thermostat
Thermostat features...................................2
Programming at a glance .......................... 3
Quick reference to controls.......................4
Quick reference to display ........................5
Programming & Operation
Set time and day........................................6
System switch (Heat/Cool)........................7
Fan switch (Auto/On) .................................8
Using program schedules .........................9
Program schedule overrides ...................12
Adaptive Intelligent Recovery™.............. 14
Compressor protection............................15
Appendices
Battery replacement ................................16
In case of difficulty...................................17
Customer assistance ............................... 19
Accessories............................................. .19
5-year limited warranty............................20
This thermostat is ready to go!
Your new thermostat is pre-programmed
and ready to go.
See page 3 to check settings.
Table of contents
PRO TH4110D / TH4210D

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Your new Honeywell thermostat has been designed to give you many years of reliable
service and easy-to-use, push-button climate control.
Features
• Separatelyprogrammableweekday/weekendschedules.
• One-touchtempcontroloverridesprogramscheduleatanytime.
• EnergyStar®compliant to greatly reduce your heating/cooling expenses.
• Large,clear,backlitdisplayiseasytoread.
• Displaysbothroomtemperatureandtemperaturesetting.
• Built-incompressorprotection.
Operating Manual
2
About your new thermostat

PRO TH4110D / TH4210D
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Your new thermostat is pre-programmed. Just set the time and day. Then check the
settings below and change if needed:
1. Set time and day (required for proper operation).........................See page 6
2. Select system setting: Preset to Off..................................................See page 7
3. Select fan setting: Preset to Auto......................................................See page 8
4. Program schedules: Preset to energy-saving levels
(assumes you wake at 6 am, leave at 8 am, return
at 6 pm and sleep at 10 pm) ....................................................... See pages 11-13
ONE-TOUCH TEMP CONTROL: You can override the program schedule at any time,
and manually adjust the temperature (see pages 12-13).
This thermostat is ready to go!

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M29470
Temperature adjustment (see page 11-13)
Fan Switch (see page 8)
On: Fan runs continuously.
Auto: Fan runs only when heating
or cooling system is on.
Quick reference to controls
• Set: Press to set time/day/
schedule.
• Hold: Press to override
programmed temperature control.
• Run: Press to resume program
schedule.
System switch (see page 7)
• Cool: Cooling system control.
• Off: All systems off.
• Heat: Heating system control.
• Em Heat:Emergency&Auxiliary
Heat control. Compressor is
locked out. (Select models only.)

PRO TH4110D / TH4210D
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Wake
Wed
Recovery
Em Aux
Heat On
Set To
Inside
AM
75
75
6:30
Replace Batt
M29471
Quick reference to display screen
Low battery warning
(see page 16)
Adaptive Intelligent RecoveryTM
(see page 14)
Temperature setting
(see pages 11-13)
System status
Cool on: Cooling
system is on.
Heat on: Heating
system is on.
Em:Emergencyheat
is on.**
Aux: Auxiliary heat
is on.**
** Only for heat pumps with this
capability (select models only).
Current day/time (see page 6)
Current inside
temperature
Current program period
Wake/Leave/Return/Sleep
(see pages 9-10)

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Set
Clock
AM
6:30
Wed
Set Day
MCR29472
1. Press the SET button, then press s or t
to set the clock time.
2. Press the SET button, then press s or t
to select the day of the week.
3. Press RUNtosave&exit.
Note: If the display flashes Set Clock, the
thermostat will follow your settings for the
weekday “Wake” time period until you reset
the time and day.
Set the time and day
Press SET, then adjust time.
Press SET, then select current day.

PRO TH4110D / TH4210D
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M29473
The SYSTEM switch can be set to control
your heating or cooling system, depend-
ing on the season.
• Cool: Cooling system control.
• Off: All systems are off.
• Heat: Heating system control.
• Em Heat:Emergency&Auxiliary
Heat control. Compressor is locked
out. (Select models only.)
System switch
Set SYSTEM switch to control the
heating or cooling system.
CAUTION: EQUIPMENT DAMAGE
HAZARD. Donotoperatecooling
system when outdoor temperature
is below 50°F (10°C).

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M29473
Fan switch
Set the FAN switch to Auto or On.
In “Auto” mode (the most commonly used
setting), the fan runs only when the heat-
ing or cooling system is on.
If set to “On,” the fan runs continuously.
Set FAN switch to choose whether the fan
runs continuously or only as needed.