Aube Technologies TH303 User manual
TH303
Programmable Thermostat
Owner’s Guide
69-2680EF-07
Overview
About your new thermostat .............. 1
Quick reference to controls .............. 2
Quick reference to screen display .... 3
Installation
Removing the faceplate.................... 4
Wiring ............................................... 5
Installing the thermostat ................... 6
Quick start-up / Setting the clock...... 7
Operating modes
Automatic (Auto) mode..................... 8
Manual (Man) mode ......................... 9
Away mode..................................... 10
Countdown mode ............................11
Configuration
Default schedule............................. 12
Modifying the schedule................... 13
Setup menu .................................... 14
Setup procedure ............................. 16
Appendices
In case of difficulty .......................... 17
Specifications ................................. 19
3-year limited warranty ................... 20
Customer assistance...................... 21
Table of contents
TH303
1
This thermostat has been designed to control an electric heating system such as
a baseboard heater, a radiant ceiling, a convector or a fan-forced heater.
The thermostat CANNOT be used with:
• a resistive load under 0.83 A
• a resistive load over 10.4 A
• a system driven by a contactor or a relay (inductive load)
• a central heating system
SUPPLIED PARTS
• One (1) thermostat
• Two (2) 6-32 mounting screws
• Two (2) solderless connectors
About your new thermostat
Owner’s Guide
2
•To turn the screen backlight on,
press the Select button once. The
backlight will remain on for 12
seconds.
•To display the setpoint
temperature, press the Up or
Down button once. The setpoint
will be displayed for 5 seconds.
•To modify the setpoint
temperature, press the Up or
Down button until the desired value
is displayed.
•To enter or exit the programming
mode, press the Select button and
hold for 3 seconds.
Quick reference to controls
Up button
Down button
Select button
Help tab
Slide up from the
right and remove
to view information
on both sides.
Screen
TH303
3
Quick reference to screen display
Ambient temperature
Heating intensity indicator
(No icon appears when
heating is off.)
Time
Periods (see page 12)
Countdown mode (see page 11)
Manual mode (see page 9)
Day
Automatic mode (see page 8)
Away mode (see page 10)
Setpoint temperature
(see page 2)
Flashes during
Countdown mode
Owner’s Guide
4
TURN OFF POWER OF THE HEATING
SYSTEM AT THE MAIN ELECTRICAL
PANEL TO AVOID ELECTRIC SHOCK.
WARNING: Installation must be carried
out by a certified electrician and must
comply with national and local electrical
codes.
Loosen the screw holding the faceplate to
the base. The screw cannot be
completely removed and remains captive
on the base. Remove the faceplate from
the base by pulling the bottom section.
Removing the faceplate
TH303
5
Connect either one of the
thermostat wires to the
heater wire and the other
one to the power supply
wire using solderless
connectors for copper wires.
NOTE: Special CO/ALR
solderless connectors must
be used when connecting
with aluminium conductors.
Wiring
2-wire installation 4-wire installation
Power supply
Power supply
Owner’s Guide
6
1) Install the base onto an electrical box.
2) Place the FAN switch as follows:
Place at Yes if you have a fan-forced
heater (to prevent premature burnout
of the motor).
Leave at No for better temperature
regulation if you do not have a
fan-forced heater.
3) Reinstall the faceplate on the base and
secure it in place with the screw.
4) Apply power to the thermostat at the
main electrical panel.
Installing the thermostat
Keep air vents at top and
bottom of thermostat clean and
unobstructed at all times.
If you change the FAN switch position after you
have already applied power to the thermostat,
disconnect power to the thermostat at the
electrical panel for 3 seconds. The thermostat
will use the new setting when you reapply power.
FAN switch
TH303
7
When you power the thermostat, the Time menu flashes on the screen. Set the
thermostat’s clock and date as follows:
NOTE: At any time, you can access the Time menu by pressing the Select button
for 3 seconds and then pressing the Up button once.
Quick Start-up / Setting the clock and date
Time Menu Select the format Set the hour Set the minutes Set the year Set the month Set the date Normal display
Your new thermostat is already preprogrammed
and is now controlling the temperature!
Owner’s Guide
8
In Automatic mode, the thermostat follows the programmed schedule (see page 12).
To place the thermostat in Automatic (Auto) mode:
Temporary override
While the thermostat is in Automatic mode, you can press the Up or Down button to modify
the temperature. The new temperature will be used until the end of the current period. Auto
will flash during the override. You can cancel the override by pressing the Select button twice
to return to Automatic mode.
Automatic (Auto) mode
Normal display Auto mode
Select Auto
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