Honeywell PRO TH4000 series User manual

Operating
Manual
TH4000 Series
Programmable Thermostat
22
22
69-2016EF-03

Read and save these instructions.
Patents pending.
Copyright © 2013 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.)
CAUTION: EQUIPMENT DAMAGE HAZARD.
To prevent possible compressor damage, do not operate cooling system when outdoor
temperature is below 10°C (50°F).

1 69-2016EF—03
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
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 .....................11
Adaptive Intelligent Recovery ...................13
Compressor protection..............................14
Appendices
Battery replacement..................................15
In case of difficulty .................................... 16
Customer assistance ................................18
Accessories...............................................18
TH4110D / TH4210D

Operating Manual
About your new thermostat
69-2016EF—03 2
Your new 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-savingsettingsformaximumcostsavings.
• Large,clear,backlitdisplayiseasytoread.
• Displaysbothroomtemperatureandtemperaturesetting.
• Built-incompressorprotection.
2
About your new thermostat

TH4110D / TH4210D
3 69-2016EF—03
Your new thermostat is pre-programmed. Just set the time and day. Then check the set-
tings 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!

Operating Manual
69-2016EF—03 4
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.)

TH4110D / TH4210D
5 69-2016EF—03
Wake
Wed
Recovery
Em Aux
Heat On
Set To
Inside
AM
22
22
6:30
Replace Batt
Quick reference to display screen
Low battery warning
(see page 16)
Adaptive Intelligent Recovery
(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)

Operating Manual
69-2016EF—03 6
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.
Set
Clock
AM
6:30
Wed
Set Day

TH4110D / TH4210D
7 69-2016EF—03
The SYSTEM switch can be set to control
your heating or cooling system, depending
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 10°C (50°F).

Operating Manual
69-2016EF—03 8
Fan switch
Set the FAN switch to 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. Use
this setting for improved air circulation, or for
more efficient air cleaning.
Set FAN switch to choose whether the fan
runs continuously or only as needed.