Aube Technologies TH303 Thermostat
About your new thermostat
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 CAN NOT 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
A quick reference to controls
- 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.
A quick reference to the screen display 
Removing the faceplate
TURN OFF THE 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.
Wiring
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 aluminum conductors
Installing the thermostat
- Install the base onto an electrical box.
- Place the FAN switch on Yes only if the thermostat is connected to a fan-forced heater. Otherwise, leave No.
- If applicable, peel off the protective sticker from the thermostat’s screen.
- Reinstall the faceplate on the base and secure it in place with the screw.
- Apply power to the thermostat at the main electrical panel.
Keep air vents at top and bottom of the thermostat clean and unobstructed at all times.
Quick Start-up / Setting the clock and date
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.
Your new thermostat is already preprogrammed and is now controlling the temperature!
Automatic (Auto) mode
In Automatic mode, the thermostat follows the programmed schedule.
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.
Manual (Man) mode
Use the Manual mode if you wish to keep the thermostat at the same temperature indefinitely. In this mode, the thermostat will remain at this temperature until you press the Up or Down button to change it.
To place the thermostat in Manual (Man) mode:
Away mode
The Away mode can be used when you are away for an undetermined length of time. For frost protection, while saving energy, the Away temperature is set by default at 15°C (59°F) and cannot be modified by simply pressing the Up or Down button. To modify the Away temperature.
NOTE: The Away mode can also be used to prevent tampering of the setpoint temperature in the summer season when heating is not required.
To place the thermostat in Away mode
Countdown mode
Use the Countdown mode if you wish to keep the same temperature for a predetermined length of time. The choices of countdown times are: 15, 30, 45 min, 1, 2, 4, 8, 12, 18 hr and 1 to 14 days. At the end of the countdown, the thermostat automatically returns to the previous mode and uses the temperature programmed for that mode. At any time, you can cancel the Countdown mode by pressing the Select button.
To place the thermostat in Countdown mode:
Default schedule
When placed in Automatic mode (see page 8), the thermostat follows the programmed schedule. By default, the thermostat is programmed with the following schedule:
| Monday to Friday
(Mo, Tu, We, Th & Fr) |
Saturday and Sunday
(Sa & Su) |
|||
| Period | Starting time | Temperature | Starting time | Temperature |
| Wake | 6:00 (6:00 AM) | 21.0°C (70°F) | 6:00 (6:00 AM) | 21.0°C (70°F) |
| Leave | 8:00 (8:00 AM) | 16.5°C (62°F) | -:– | – |
| Return | 18:00 (6:00 PM) | 21.0°C (70°F) | -:– | – |
| Sleep | 22:00 (10:00 PM) | 16.5°C (62°F) | 22:00 (10:00 PM) | 16.5°C (62°F) |
The schedule consists of 4 periods per day, which represents a typical work day. However, you can program the thermostat to skip (cancel) the periods that do not apply to your situation. For example, Leave and Return periods are skipped for the weekend in the default schedule. You can choose a different program every day; i.e., each period can have a different starting time and a different temperature every day.
Modifying the schedule
To modify the schedule, proceed as follows:
To skip a period: When the hour or the temperature of the period is flashing, press the Up and Down buttons at the same time. (Alternatively, set its hour between 23:00 [11:00 PM] and 0:00 [12:00 AM] or its temperature below 5°C [41°F].) Its time and temperature display will be replaced by dashes (-).
NOTE: If you do not press any button for one minute, the thermostat will automatically save any changes you have made and will return to its normal display
Configuration parameters
| Display | Parameter | Options | Default setting | To modify |
| FAn | Fan1 | Yes / No | No | FAN switch (see page 6) |
| 1224h
|
Time format |
12h / 24h |
24h |
Time menu (see page 7) |
| UNIT
|
Temperature unit |
°C / °F |
°C |
Configuration menu (see page 16) |
| AWAY | Away temperature2 |
5°C – 30°C (41°F – 86°F) |
10°C (50°F) |
|
| dST | Daylight Saving Time3 |
On / Off |
On |
|
| ES | Early Start4 |
On / Off |
Off |
- Fan
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. - Away temperature
Set the temperature you wish to use when the thermostat is in Away mode (see page 10). - daylight Saving Time
When the Daylight Saving Time function is enabled (On), the thermostat automatically switches to Daylight Saving Time on the second Sunday of March and to normal time on the first Sunday of November. - Early Start
Early Start is used in Automatic mode only. When Early Start is enabled (On), the thermostat determines when to start heating so the desired temperature is attained at the beginning of the Wake and Return periods.
When Early Start is disabled (Off), heating starts only at the beginning of the Wake and Return periods; thus there is a delay before you reach the desired temperature.
Configuration procedure
The Configuration menu is shown below.
- Press the Select button for 3 seconds to enter the main menu.
- Press the Up button twice to enter the Configuration (Conf) menu.
NOTE: If you do not press any button for one minute, the thermostat will automatically save any changes you have made and will return to its normal display.
In case of difficulty
| PROBLEM | SOLUTIONS |
|
Thermostat is hot. |
This is normal. Ensure that the heater capacity does not exceed the thermostat’s maximum load. |
|
Displayed temperature is wrong. |
Remediate if any the following conditions exists:
• The thermostat is exposed to air draft. • The thermostat is located near or above a heat source such as a light dimmer. |
| Display disappears and reappears after a few minutes. | The thermal protection device on the heater has temporarily opened. This can happen if the heater is obstructed by furniture or curtain and has overheated, or if the heater’s thermal protection device is too sensitive. |
|
TIME is flashing. |
The thermostat was without power for more than 4 hours. Set its clock and date (Time menu). |
| Temperature does not change according to the programmed schedule. | • Ensure the thermostat is in Automatic mode.
• Check the clock (Time menu) and the schedule (Prog menu). If the thermostat is configured for 12-hour format, ensure that AM or PM appears on the screen. |
Customer assistance
If you have any questions about the product, contact us at: 705 Montrichard Saint-Jean-sur-Richelieu, Quebec J2X 5K8 Canada
Tel: 1-800-831-AUBE (2823)
Email: [email protected]
To reset the thermostat, press both the Down and Select buttons and hold.
After 3 seconds, RST appears. After the next 5 seconds, when RST disappears, release the buttons. Except for the time and date, the thermostat has now returned to its default settings.
For more information on our products, go to www.aubetech.com
Specifications
- Supply: 120/240 VAC, 60 Hz
- Minimum load: 0.83 A (resistive only)
200 W @ 240 VAC
100 W @ 120 VAC - Maximum load: 10.4 A (resistive only)
2500 W @ 240 VAC
1250 W @ 120 VAC - Setpoint range: 5°C to 30°C (41°F to 85°F)
- Display range: 0°C to 70°C (32°F to 99°F)
- Setpoint/display resolution: ±0.5°C (±1°F)
- Operation: 0°C to 50°C (32°F to 120°F)
- Storage: -20°C to 50°C (-4°F to 120°F)
- Permanent memory: You do not need to adjust the temperature settings or the thermostat’s configurations following a power outage. However, you might need to set the thermostat’s clock and date if the outage lasts more than 4 hours.
3-year limited warranty
Honeywell 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, Honeywell shall repair or replace it (at Honeywell’s option). If the product is defective,
- return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it, or
- contact Honeywell. Honeywell will make the determination whether the product should be returned, 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 that 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 provinces, states or regions 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 PURPOSE, IS HEREBY LIMITED TO THE THREE-YEAR DURATION OF THIS WARRANTY. Some provinces, states or regions 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 from one province, state or region to another
REFERENCE
Download Manual
Aube Technologies TH303 Thermostat Owner’s Guide
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