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TH104PLUS  
User Guide  
Programmable Thermostat  
Time and day  
Appears if the  
Day button  
thermostat is configured  
for a fan-forced heater  
Hour button  
Minute button  
Flashes when the  
Appears when the  
clock has been reset  
setpoint is displayed  
Program button  
Return button  
Temperature  
Heating power  
indicator  
Appears during  
a power failure  
Period no. in  
Mode button  
Automatic mode  
Setting no. in  
Economy mode  
Up/Down buttons  
Automatic Manual Economy  
mode  
mode  
mode  
Reset opening  
1
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1
) Connect the thermostat  
Description  
n
Connect the thermostat wires to the power and to the load using  
solderless connectors for copper wires.  
The TH104PLUS thermostat can be used to control an electric  
heating system such as a baseboard heater, a radiant floor, a radiant  
ceiling, a convector or a fan-forced heater.  
2-wire installation  
The thermostat cannot be used with the following:  
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a resistive load under 2 A  
a resistive load over 14.6 A  
systems driven by a contactor or a relay (inductive load)  
central heating systems  
SUPPLIED PARTS  
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One (1) thermostat  
Two (2) 6-32 mounting screws  
Two (2) solderless connectors  
2
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Installation  
o
TURN OFF POWER TO THE HEATING SYSTEM AT THE MAIN  
POWER PANEL TO AVOID ELECTRICAL SHOCK.  
4-wire installation  
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All cables and connections must comply with local electrical  
codes.  
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This thermostat has tinned copper wires for line and load con-  
nections. Special CO/ALR solderless connectors must be used if  
these wires will be connected to aluminium conductors.  
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Install the thermostat onto an electrical box.  
Install the thermostat about 5 feet high, on an inside wall facing  
the heater.  
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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 sunlight.  
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Do not install the thermostat on a wall that conceals chimney or  
stove pipes.  
The thermostat wires are not polarized; either wire can be con-  
nected to the load or to the power supply.  
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2
) Mount the thermostat  
Time display  
Push the excess wires back  
inside the electrical box.  
To switch between the 12-hour format and the 24-hour format:  
n Open the thermostat’s door.  
Secure the thermostat to the  
electrical box using the provided  
screws.  
o Press and hold the Hour button.  
p Insert a pointed object (e.g., paperclip) in the reset opening.  
Remove it when the thermostat’s screen becomes blank.  
Insert the screws through either  
the right or left pair of mounting  
holes on the thermostat.  
q Wait one second and release the Hour button.  
Control type  
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Use proportional control (default setting) in most cases as it pro-  
vides better temperature control.  
3
) Complete the installation  
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Use conventional control if you have a fan-forced heater.  
NOTE: If there is a protective film or sticker on the thermostat’s  
screen, peel it off.  
Fan is displayed when conventional control is selected. To switch  
between the two types of control:  
Apply power to the heating system. Verify the installation by checking  
that the heater can be turned On and Off by raising and lowering the  
setpoint using the Up and Down buttons.  
n Open the thermostat’s door.  
o Press and hold the Min button.  
WARNING: Keep the thermostat's air vents clean and free from  
p Insert a pointed object (e.g., paperclip) in the reset opening.  
obstructions.  
Remove it when the thermostat’s screen becomes blank.  
3
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q Wait one second and release the Min button.  
Temperature Display and Setting  
The thermostat normally displays the room (measured) temperature.  
p
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5
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Clock and Day Setting  
The clock must be set when Time flashes on the  
r
To view the set temperature (setpoint), press the Up or Down  
button once.  
screen.  
To change the setpoint, press the Up or Down button until the  
desired setpoint is displayed.  
n Open the thermostat’s door.  
The screen is backlit for 10 seconds when any button is pressed.  
o Press the Day button to set the day.  
p Use the Hour and Min buttons to set the clock.  
4
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Configuration  
The factory settings are inside the shaded cells of the following table.  
q
q Press the  
button to exit.  
6
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Modes of Operation  
The thermostat has three modes of operation:  
Temperature display  
Time display  
°C  
°F  
s
24 h  
12 h  
Proportional  
15-second cycles)  
Conventional  
(± 0.5°C deadband)  
Temperature control  
Automatic mode  
(
To use the Automatic mode, press the Mode button  
until Auto is selected (outlined) on the screen. The cur-  
rent period number will appear.  
WARNING: The clock loses its setting whenever you change the  
thermostat’s configuration.  
Temperature display  
In this mode, the thermostat automatically adjust its  
temperature setpoint according to the period of the day  
To change the temperature display between °C and °F:  
(wake up, leave for work, return home and sleep).  
n Open the thermostat’s door.  
You can program up to 4 periods in a day. You can set 2 different  
programs: one for the weekdays (Monday to Friday) and another one  
for the weekend (Saturday and Sunday).  
o Press and hold the Day button.  
p Insert a pointed object (e.g., paperclip) in the reset opening.  
Remove it when the thermostat’s screen becomes blank.  
q Wait one second and release the Day button.  
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The thermostat is preprogrammed with the following schedule:  
The economy mode has two periods which should be set as follows:  
Period  
Monday to Friday  
Saturday & Sunday  
Period Temperature Setting  
Start Time Setting  
Start Time Temperature Start Time Temperature  
Set the day and time that you  
want the temperature to start  
rising so that a comfortable level  
is attained by the time you arrive.  
1
2
3
4
Wake  
Leave  
Return  
Sleep  
6:00  
8:00  
21°C (70°F)  
16°C (62°F)  
21°C (70°F)  
16°C (62°F)  
6:00  
--  
21°C (70°F)  
Set to a comfortable  
level.  
--  
--  
1
18:00  
22:00  
--  
22:00  
16°C (62°F)  
Set the day and time that you  
want the temperature to start  
dropping to an economy level if  
you do not show up.  
To temporarily override the current setpoint, set the desired tempera-  
ture using the Up or Down button. The new setpoint will be used until  
the beginning of the next period.  
Set to an economy  
level.  
2
To modify the schedule:  
The economy mode should be used as follows:  
n Press the Mode button until Auto is selected.  
o Press Pgm.  
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Place the thermostat in economy mode during your absence.  
When you arrive, place the thermostat in automatic mode or in  
manual mode before the temperature drops back to the  
economy level.  
Each time you press the Pgm button, the thermostat displays one of  
the periods of the schedule in the following order (from left to right):  
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When you leave, switch the thermostat back to economy mode.  
To program the two periods of the economy mode:  
Weekdays  
Weekend  
n Press the Mode button until Econo is selected.  
MO TU WE TH FR  
SA SU  
o Press the Pgm button. The first period is displayed.  
p Set the start day for the displayed period using the Day button.  
q Set the start time using the Hour and Min buttons.  
r Set the temperature for the period using the Up or Down button.  
s Press the Pgm button to select the next program (2).  
t Repeat steps 2 to 4 to set the day, time and temperature.  
1
2
3
4
1
2
3
4
p Set the start time for the displayed period using the Hour and  
Min buttons.  
NOTE: To deactivate the period, press the Mode button. Instead  
of displaying the start time of the period, the thermostat will dis-  
play --:--. During operation, the thermostat will skip over that  
period.  
q Set the temperature for the period using the Up or Down button.  
r Repeat steps 2 to 4 for remaining periods.  
u Press the  
button to return the thermostat to normal operation.  
7
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s Press the  
button to return the thermostat to normal operation.  
Thermostat Reset  
t
Manual mode  
WARNING: When the thermostat is reset, all parameters (clock, con-  
figuration and schedules) return to their default settings.  
To use this mode, press the Mode button until Man is  
selected (outlined) on the screen. Set the desired tem-  
perature using the Up or Down button.  
n Open the thermostat’s door.  
o Press and hold the Pgm button.  
In this mode, any modification to the temperature  
setpoint must be done manually.  
p Insert a pointed object (e.g., paperclip) in the reset opening.  
Remove it when the thermostat’s screen becomes blank.  
Economy mode  
q Wait one second and release the Pgm button.  
To use the economy mode, press the Mode button until  
Econo is selected (outlined) on the screen. This mode  
is ideal for weekend residences as it can be used as  
follows: The temperature is kept at an economy level  
during most of your absence and is raised to a comfort-  
able level by your usual arrival time. If you do not show  
up, the temperature returns to the economy level until  
next weekend.  
8.  
Power Outage  
u
During a power outage, the thermostat display remains lit for approx-  
imately the next 15 minutes during which the LP (low power) indica-  
tor appears. The settings are stored in memory. However, if the  
power failure exceeds 5 hours, only the thermostat’s clock must be  
re-adjusted. When power returns, the thermostat returns to the mode  
of operation preceding the power outage.  
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11.  
v Troubleshooting  
Warranty  
;
Aube warrants this product, excluding battery, to be free from defects  
in the workmanship or materials, under normal use and service, for a  
period of three (3) years 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, Aube shall repair or replace it (at Aube's  
option).  
PROBLEM  
SOLUTIONS  
This is normal. When the thermostat is  
running at full capacity, its housing can  
reach 40 °C (104 °F).  
Thermostat’s housing is  
hot.  
If the product is defective,  
Correct if any the following conditions  
applies:  
(i) return it, with a bill of sale or other dated proof of purchase, to the  
place from which you purchased it, or  
(
ii) contact Aube. Aube will make the determination whether the  
product should be returned, or whether a replacement product  
can be sent to you.  
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The thermostat is exposed to an  
air draft.  
Wrong temperature is  
displayed.  
The sticker on the thermostat’s  
screen has not been removed.  
This warranty does not cover removal or reinstallation costs. This  
warranty shall not apply if it is shown by Aube that the defect or  
malfunction was caused by damage which occurred while the  
product was in the possession of a consumer.  
Aube's sole responsibility shall be to repair or replace the product  
within the terms stated above. AUBE 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 provinces and states do not allow the  
exclusion or limitation of incidental or consequential damages, so this  
limitation may not apply to you.  
The thermostat is located near or  
above a heat source such as a  
light dimmer.  
Wrong time is dis-  
played.  
The thermostat was without power for  
more than 5 hours.  
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•
Ensure the thermostat is in Auto-  
matic mode.  
Temperature does not  
change according to the  
programmed schedule.  
Check the clock and the schedule.  
If the thermostat is configured for  
12-hour format, ensure that PM  
appears on the screen when after-  
noon times are displayed.  
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY AUBE  
MAKES ON THIS PRODUCT. THE DURATION OF ANY IMPLIED  
WARRANTIES,  
INCLUDING  
THE  
WARRANTIES  
OF  
The thermal protection device on the  
heater has temporarily opened. This  
can happen if the heater is obstructed  
by furniture or curtain and has over-  
heated, or if the heater’s thermal pro-  
tection device is too sensitive.  
MERCHANTABILITY AND FITNESS FOR  
A
PARTICULAR  
PURPOSE, IS HEREBY LIMITED TO THE THREE-YEAR  
DURATION OF THIS WARRANTY. Some provinces and states do  
not allow limitations on how long an implied warranty lasts, so the  
above limitation may not apply to you.  
This warranty gives you specific legal rights, and you may have other  
rights which vary by province, state or region.  
LP reappears on the  
screen and disappears  
after a few minutes.  
The load of the heating system is prob-  
ably less than the required minimum.  
This thermostat cannot be used for  
loads below that rating.  
Display looks faded  
when heating is acti-  
vated.  
1
2.  
Customer Assistance  
If you have any questions about the product installation or operation,  
contact us at the address shown below:  
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1
0.  
Specifications  
Supply: 240 VAC, 60 Hz  
w
7
05 Montrichard  
Saint-Jean-sur-Richelieu, Quebec  
J2X 5K8  
Power consumption (off): 860 mW  
Canada  
Tel: (450) 358-4600  
Toll-free: 1-800-831-AUBE  
Fax: (450) 358-4650  
Email: aube.service@honeywell.com  
Minimum load:500 W / 2 A (resistive only)  
Maximum load: 3500 W / 14.6 A (resistive only)  
Display range: 0°C to 70°C (32°F to 99°F)  
Setpoint range: 5°C to 27°C (40°F to 80°F)  
Resolution: 1°C (1°F)  
Storage temperature: -20°C to 50°C (-4°F to 120°F)  
Dimensions: 120 x 115 x 26 mm (4.8 x 4.5 x 1 inches)  
Approval: CSA / UL  
For more information on our products, visit us at:  
www.aubetech.com  
®
As an ENERGY STAR partner, Aube Technologies has  
determined that this product meets the ENERGY STAR  
guidelines for energy efficiency.  
TH104PLUS  
400-104-004-D  
2008-01-29  
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