Honeywell PRO TH4000 series User manual

Quick Reference Card
Grasp and pull to see basic operating instructions at a glance.
This rnanual covers the following medets:
TN4110D: For 1 Heat/1 Cool systems
TN4210D: For 2Heat/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 50°F (10°C).
For assistanoo with this produQt pleas e visit http://yourhomo_honoywel!,oom
or oall Honeywell Customer Care to!l-free at 1_800_468=1502
Read and save these instructions,
® U.S. Registered Trademark. Patents pending.
Copyright ® 2006 Honeywell International Inc. All rights reserved.

PRO TH4110D / TH4210D
About your new thermostat
Thermostat features ................................... 2
Programming at aglance .......................... 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 TM .............. 14
Compressor protection ............................ 15
Appendices
Battery replacement ................................ 16
in case of difficulty ................................... 17
Customer assistance ............................... 19
Accessories .............................................. 19
5-year limited warranty ............................ 20

Operating Manual
!
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.

PRO TH4110D / TH4210D
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).

OperatingManual
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Temperature adjustment (see page 11-13)
Set: Press to set time/day/
schedule.
Hold: Press to override
programmed temperature control.
Run: Press to resume program
schedule.
Fan Switch (see page 8)
On: Fan runs continuously.
Auto: Fan runs only when heating
or cooling system is on.
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
a
Low battery warning Adaptive Intelligent Recovery TM Temperature setting
(see page 16) (see page 14) (see pages 11-13)
Current inside
temperature
Current program period
(see pages 9-10)
System status
Cool on: Cooling
system is on.
Heat on: Heating
system is on.
Era: Emergency heat
is on.**
Aux: Auxiliary heat
is on.**
Current day/time (see page 6)
** Only for heat pumps with this
capability (select models only).

OperatingManual
Press SET,then adjust time.
Press SET,then select current day. iii
1. Press the SET button, then press A or Y
to set the clock time.
2. Press the SET button, then press A or Y
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.

PRO TH4110D / TH4210D
Set SYSTEMswitch to control the
heating or cooling system.
The SYSTEM switch can be set to control
your heating or cooling system, depend-
ing on the season.
•0ool; 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.)
CAUTION: EQUIPMENT DAMAGE
HAZARD, Do not operate cooling
system when outdoor temperature
is below 50°F (10°C).

Operating Manual
r'1
i
Set FAN switch to choose whether the fan
runs continuously or only as needed.
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.
Use this setting for improved air circula-
tion, or for more efficient air cleaning.

PRO TH4110D / TH4210D
- M
It's easy to program your system for maximum energy savings. You can program
four time periods each day, with different settings for weekdays and weekends.
WAKE Set to the time you awaken and the temperature you want
6:00 am
-]go
I_ LEAVE
8:00 am
L--3o
OC
RETURN
8:00 pm
70°
SLEEP
10:00 pm
L--3o
OC
during the morning, until you leave for the day.
Set to the time you leave home and the temperature you want
while you are away (usually an energy-saving level).
Set to the time you return home and the temperature you
want during the evening, until bedtime.
Set to the time you go to bed and the temperature you want
overnight (usually an energy-saving level).
9

OperatingManual
" ii
This thermostat is pre-set to use Energy Star .°program settings. We recommend
these settings, since they can reduce your heating/cooling expenses by as much as
33%. (See next page to adjust times and temperatures of each time period.)
Wake
(6:00 am)
Leave _(8:00 am)
Return
(6:00 pro)
Sleep(10:O0 pm)
Heat (Mon-Fri)
-/L-/°
52°
70°
52°
Cool (Mon-Fri) Heat (Sat-Sun) Cool (Sat-Sun)
75° 70° 75°
89°
75°
78° 52°78°
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PRO TH4110D / TH4210D
-i
Press SET3 times, then adjust time.
Press SET, then set desired temperature.
1. Press SET until Set Schedule is displayed.
2. Press A or _' to set your weekday Wake
time (Mon-Fri), then press SET.
3. Press _. or y to set the temperature for this
time period, then press SET.
4. Set time and temperature for the next time
period (Leave). Repeat steps 2 and 3 for each
weekday time period.
5. Press SET to set weekend time periods (Sat-
Sun), then press HUN to save & exit.
Note" Make sure the thermostat is set to the system
you want to program (Heat or Cool).
Note" To aancel an unwanted time period (except
Wake), press and hold _. + HOLD for 4 seconds
while in the Set Schedule mode.
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Operating Manual
Press to temporarily adjust temperature.
!
Press to resume program schedule.
Press ,_ or _P"to immediately adjust the
temperature. This will temporarily override
the temperature setting for the current time
period.
The new temperature will be maintained
only until the next programmed time period
begins (see page 9). For example, if you
want to turn up the heat early in the morning,
it will automatically be lowered later, when
you leave for the day.
To cancel the temporary setting at any time,
press RUN.
Note: Make sure the thermostat
is set to the system you want to
control (heat or cool). 12

PROTH4110D/ TH4210D
i
i
Press to permanently adjust temperature.
Press to resume program schedule.
Press HOLD to permanently adjust
the temperature. This will override
the temperature settings for all time
periods.
The "Hold" feature turns off the
program schedule and allows you to
adjust the thermostat manually, as
needed.
Note; Make sure the thermostat is set
to the system you want to control (heat
or cool).
Whatever temperature you set will be
maintained 24 hours a day, until you
manually change it, or press RUN to
cancel "Hold" and resume the program
schedule.
13

OperatingManual
Adaptive Intelligent Recovery eliminates guesswork when setting your schedule.
It allows the thermostat to "learn" how long your furnace and air conditioner take
to reach the temperature you want.
Just set your program schedule to the time you want the house to reach your desired
temperature. The thermostat then turns on the heating or cooling at just the right time
to reach your scheduled temperature at your scheduled time.
For example: Set the Wake time to 6 am and the temperature to 70 °. The heat will
come on before 6 am, so the temperature is 70 ° by the time you wake at 6.
14

PROTH4110D/ TH4210D
,i
/
Message flashes until safe restart
time has elapsed.
This feature helps prevent damage to the
compressor in your air conditioning or heat
pump system.
Damage can occur if the compressor is
restarted too soon after shutdown. This fea-
ture forces the compressor to wait for a few
minutes before restarting.
During the wait time, the display will flash
the message Cool On (or Heat On if you have
a heat pump). When the safe wait time has
elapsed, the message stops flashing and the
compressor turns on.
15

OperatingManual i
Pull at bottom to
remove thermostat
from wallplate.
Turn thermostat over,
insert fresh AA alkaline
batteries, then reinstall
thermostat.
16
Batteries are optional (for backup
power) if your thermostat was wired
to run on AC power when installed.
Install fresh batteries when the
REPLACE BATT warning begins flash-
ing. The warning flashes about two
months before the batteries are
depleted.
Replace batteries once a year, or
before leaving home for more than a
month. If batteries are inserted within
one minute, the time and day will not
have to be reset. AH other settings are
permanently stored in memory, and
do not require battery power.

PRO TH4110D / TH4210D
I _ _ 0 0 |
If you have difficulty with your thermostat, please try the following suggestions.
Most problems can be corrected quickly and easily.
Display is blank • Check circuit breaker and reset if necessary.
• Make sure power switch at heating & cooling system is on.
• Make sure furnace door is closed securely.
• Make sure fresh AA alkaline batteries are correctly installed (see
page 16).
Heating or
cooling system
does not respond
• Set system switch to Heat (see page 7). Make sure the temperature is
set higher than the Inside temperature.
• Set system switch to Cool (see page 7). Make sure the temperature is
set lower than the Inside temperature.
• Wait 5 minutes for the system to respond.
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OperatingManual
I _ _ 0 0 |
Temperature
settings do not
change
"Cool On" Or
"Heat On" is
flashing
"Heat On" is not
displayed
"Cool On" is not
displayed
To restore
Energy Star °
default settings
Make sure heating and cooling temperatures are set to acceptable ranges:
• Heat: 40° to 90°F (4.5° to 32°C).
• Cool: 50° to 99°F (10° to 37°C).
• Compressor protection feature is engaged. Wait 5 minutes for the system
to restart safely, without damage to the compressor (see page 15).
• Set the System switch to Heat, and set the temperature level above the
current room temperature (see page 7).
• Set the System switch to Cool, and set the temperature level below the
current room temperature (see page 7).
Follow these steps to restore Energy Star default settings (see page 10):
1. Press SET 3 times to display "Set Schedule."
2. Press and hold SETand RUNat the same time for 4 seconds.
3. Press RUN.
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