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8161  
TH110-DP-P  
TL8230  
3.  
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Description  
Configuration  
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The configuration switches are on the back of the thermostat. Default (factory)  
settings are inside the gray cells.  
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This programmable thermostat can be connected to an electric heating sys-  
tem such as an electric baseboard, a radiant ceiling, a floor heating system,  
an electric convector, etc. It is not compatible with a central heating system.  
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Configurations  
Not used  
UP  
DN  
SW1  
SW2  
SW3  
SW4  
Early Start a  
Time format  
Disable  
12-hour  
°F  
Enable  
24-hour  
°C  
Time and day  
Appears during the  
Temperature format b  
On/Off  
switch  
setpoint display  
Temperature  
a. Early Start can be used in Automatic mode only. When this function is  
enabled, the thermostat calculates the optimal time to start heating in  
order to obtain the desired temperature by the set time. The thermostat  
re-assesses the start time daily based on the previous day’s perfor-  
mance.  
Operating  
mode icons  
Preset temperature  
icons  
Heating  
indicator  
To set the day  
To set the time  
b. If you change the temperature display format, the preset temperatures  
(
,
and ) will return to their default settings.  
Periods  
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To program the schedule  
To skip a period  
Temperature  
preset buttons  
Power-up  
q
To select the  
operating mode  
Upon power-up, the thermostat is in manual mode ( ) and displays the room  
temperature.  
Temperature  
adjustment  
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Press the Hour and Min buttons to set the thermostat’s clock.  
Press the Day button to set the day.  
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Set the switch to Off to cut power to the heater. This will not affect the time and tem-  
perature settings.  
Temperature Setting  
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Setpoint  
Connection  
The thermostat normally displays the room temperature. To view the set tem-  
perature, press the or button briefly. The set temperature will appear for  
seconds.  
To change the setpoint, press the  
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TURN OFF POWER TO THE HEATING SYSTEM AT THE MAIN POWER  
PANEL TO AVOID ELECTRICAL SHOCK.  
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or button until the desired temperature  
The installation must be carried out by an electrician.  
is displayed. To scroll faster, hold the button.  
All cables and connections must conform to the local electrical code.  
Using a preset temperature  
Special CO/ALR solderless connectors must be used when connecting  
with aluminum conductors.  
The thermostat has 3 preset temperatures:  
Comfort temperature  
Economy temperature  
Vacation temperature  
Install the thermostat onto an electrical box.  
Install the thermostat about 5 feet high, on an inside wall facing the  
heater.  
Avoid locations where there are air drafts (such as the top of a staircase  
or an air outlet), dead air spots (such as behind a door), or direct sun-  
light.  
Icon  
Intended use  
Default setting  
Comfort (when at home)  
70 °F (21 °C)  
Do not install the thermostat on a wall that conceals chimney or stove  
pipes.  
Economy (when asleep or away from home)  
Vacation (during prolonged absence)  
62 °F (16 °C)  
50 °F (10 °C)  
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Connect the thermostat wires to the  
Black  
power and to the load using solderless  
connectors for copper wires.  
Power  
Load  
To use the Comfort or Economy temperature, press the  
respectively. The corresponding icon will be displayed.  
or button  
Red  
o
Push the excess wire back into the  
To use the Vacation temperature, press both  
neously. The icon will be displayed.  
and buttons simulta-  
electrical box to prevent interference  
with the thermostat.  
Storing a preset temperature  
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Secure the thermostat using two 6-32  
screws.  
To store the Comfort or Economy temperature:  
Set the desired temperature using the  
the appropriate button ( or ) for approximately 3 seconds until the  
corresponding icon is displayed.  
or button. Press and hold  
Return power to heating system.  
NOTE: Always keep the thermostat's vents  
clean and unobstructed.  
To store the Vacation temperature:  
Set the desired temperature using the  
both  
the  
or button. Press and hold  
and buttons simultaneously for approximately 3 seconds until  
icon is displayed.  
Load  
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8161 / TH110-DP-P / TL8230  
69-2023-01  
2010-02-05  
1/2  
Programmable Thermostat - Installation and User Guide  
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8.  
Operating Modes  
Troubleshooting  
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Problems  
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Automatic - The temperature is set according to the energy-saving  
schedule. To place the thermostat in this mode, press Mode until is dis-  
Solutions  
played. The icons of the current period and preset temperature are also dis-  
played.  
The thermostat’s screen is blank.  
The thermostat’s switch is set to Off.  
The measured temperature is below the  
display range. Heating is activated.  
LO is displayed.  
Temporary Bypass: If you modify the setpoint (by pressing the  
,
,
The measured temperature is above the  
display range.  
or button) when the thermostat is in automatic mode, the new set-  
point will be used until the end of the current period. When the next  
period starts, the temperature set for that period becomes the new set-  
point.  
HI is displayed.  
The thermostat was without power for  
more than 2 hours.  
The wrong time is displayed.  
The thermostat is located in a spot  
exposed to an air draft.  
The measured temperature is wrong.  
The heater is always On.  
Manual - The energy-saving schedule is not used. The temperature must  
be set manually. To place the thermostat in this mode:  
Check the thermostat wiring.  
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Press Mode until is displayed.  
The thermostat indicates that heating is On  
but the heater is not On.  
Check the thermostat wiring.  
Set the temperature using the  
,
,
or button.  
Check that the thermostat is in Automatic  
mode. Check also the schedule and clock  
settings.  
Vacation - The thermostat is set to the Vacation temperature. Press both  
and buttons simultaneously to place the thermostat in Vacation mode.  
The temperature does not change accord-  
ing to the energy-saving schedule  
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Energy-saving Schedule  
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Technical Specifications  
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The schedule consists of 4 periods per day which represents a typical week  
day. You can program the thermostat to skip the periods that do not apply to  
your situation. For example, you can skip periods 2 and 3 for the weekend.  
Power: 208/240 Vac, 60 Hz  
Maximum load: 16 A maximum (resistive only)  
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328 watts @ 208 Vac  
840 watts @ 240 Vac  
Display range: 32 °F to 140 °F (0 °C to 60 °C)  
Display resolution: 0.1 °F (0.1 °C)  
Setpoint range: 40 °F to 86 °F (5 °C to 30 °C)  
Setpoint interval: 1 °F (1 °C)  
Period  
Description  
Wake-up  
Associated preset temperature  
Storage: -4 °F to 120 °F (-20 °C to 50 °C)  
Data backup: In the event of a power outage, most settings are saved. Only the  
time must be re-adjusted if the power outage lasts more than 2 hours. The thermo-  
stat will return to the mode that was active prior to the power outage.  
Away from home  
Return home  
Sleep  
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0.  
Warranty  
;
Honeywell warrants this product, excluding battery, to be free from defects in the work-  
manship or materials, under normal use and service, for a period of one (1) year from the  
date of purchase by the consumer. If at any time during the warranty period the product is  
determined to be defective or malfunctions, Honeywell shall repair or replace it (at Hon-  
eywell's option).  
The Comfort ( ) temperature is used in periods 1 and 3 and the Economy  
) temperature is used in periods 2 and 4. For example, when the period  
changes from 1 to 2, the setpoint automatically changes from Comfort setting  
) to Economy setting ( ).  
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If the product is defective,  
(
i)  
return it, with a bill of sale or other dated proof of purchase, to the place from which  
you purchased it, or  
You can have a different program for each day of the week; i.e., each period  
can start at different time for each day of the week. The thermostat has been  
programmed with the following schedule.  
(ii) call Honeywell Customer Care at 1-800-468-1502. Customer Care will make the  
determination whether the product should be returned to the following address:  
Honeywell Return Goods, Dock 4 MN10-3860, 1885 Douglas Dr N, Golden Valley,  
MN 55422, or whether a replacement product can be sent to you.  
This warranty does not cover removal or reinstallation costs. This warranty shall not  
apply if it is shown by Honeywell that the defect or malfunction was caused by damage  
which occurred while the product was in the possession of a consumer.  
Honeywell's sole responsibility shall be to repair or replace the product within the terms  
stated above. HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF  
ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES  
RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY,  
EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS PRODUCT. Some states  
do not allow the exclusion or limitation of incidental or consequential damages, so this  
limitation may not apply to you.  
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON  
THIS PRODUCT. THE DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE  
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PUR-  
POSE, IS HEREBY LIMITED TO THE ONE-YEAR DURATION OF THIS WARRANTY.  
Some states do not allow limitations on how long an implied warranty lasts, so the above  
limitation may not apply to you.  
Period  
Setting  
MO  
TU  
WE  
TH  
FR  
SA  
SU  
6
:00  
6:00  
AM  
6:00  
AM  
6:00  
AM  
6:00  
AM  
6:00  
AM  
6:00  
AM  
AM  
8
:00  
8:00  
AM  
8:00  
AM  
8:00  
AM  
8:00  
AM  
-
-:--  
-:--  
--:--  
--:--  
AM  
6
:00  
6:00  
PM  
6:00  
PM  
6:00  
PM  
6:00  
PM  
-
PM  
1
0:00 10:00 10:00 10:00 10:00 10:00 10:00  
PM PM PM PM PM PM PM  
This warranty gives you specific legal rights, and you may have other rights which vary  
from state to state.  
If you have any questions concerning this warranty, please write Honeywell Customer  
Relations, 1985 Douglas Dr, Golden Valley, MN 55422 or call 1-800-468-1502. In Can-  
ada, write Retail Products ON15-02H, Honeywell Limited/Honeywell Limitée, 35 Dynamic  
Drive, Scarborough, Ontario M1V4Z9.  
To modify the schedule:  
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Press Pgm to access the programming mode. Period 1 is selected.  
Press Day to select the day to program (hold for 3 seconds to select the  
entire week).  
11.  
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Press Hour and Min to set the start time of the selected period, or press  
Clear if you want to skip the period (--:-- is displayed).  
Customer Assistance  
If you have any questions about the operation of your thermostat, please go to  
http://yourhome.honeywell.com, or call Honeywell Customer Care toll-free  
at 1-800-468-1502.  
Press Pgm to select another period, or press Day to select another day.  
Then repeat step 3.  
Press Mode to exit the programming mode.  
NOTE: If no button is pressed for 60 seconds, the thermostat will automati-  
R
cally exit the programming mode.  
0
8161 / TH110-DP-P / TL8230  
69-2023-01  
2010-02-05  
2/2  
Programmable Thermostat - Installation and User Guide