Aube TH303 Thermostat User Manual

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Owner’s Guide

TH303

Programmable Thermostat

00-303-000-C

Table of contents

Overview

Configuration

About your new thermostat .............. 1

Quick reference to controls .............. 2

Quick reference to screen display.... 3

Default schedule............................. 12

Modifying the schedule................... 13

Setup parameters........................... 14

Setup procedure............................. 16

Installation

Removing the faceplate.................... 4

Wiring ............................................... 5

Installing the thermostat ................... 6

Quick start-up / Setting the clock...... 7

Appendices

In case of difficulty.......................... 17

Customer assistance...................... 18

Specifications.................................. 19

-year limited warranty ................... 20

Operating modes

Automatic (Auto) mode..................... 8

Manual (Man) mode ......................... 9

Away mode..................................... 10

Countdown mode ............................11

TH303

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 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

00-303-000-C

Quick reference to controls

•

To turn the screen backlight on,

press the Select button once. The

backlight will remain on for 12

seconds.

Help tab

Slide up from the

right and remove

to view information

on both sides.

display

the

setpoint

temperature, press the Up or

Down button once. The setpoint

will be displayed for 5 seconds.

Screen

modify

the

setpoint

temperature, press the Up or

Down button until the desired value

is displayed.

Up button

Select button

Down button

To enter or exit the programming

mode, press the Select button and

hold for 3 seconds.

TH303

Quick reference to screen display

Countdown mode (see page 11)

Flashes during

Countdown mode

Setpoint temperature

Time

Day

(

see page 2)

Automatic mode (see page 8)

Manual mode (see page 9)

Away mode (see page 10)

Heating intensity indicator

Ambient temperature

(No icon appears when

heating is off.)

Periods (see page 12)

00-303-000-C

Removing the faceplate

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.

TH303

Wiring

Connect either one of the

thermostat wires to the

heater wire and the other

one to the power supply

2-wire installation

4-wire installation

Power supply

wire

using

solderless

connectors for copper wires.

NOTE: Special CO/ALR

solderless connectors must

be used when connecting

with aluminium conductors.

Power supply

00-303-000-C

Installing the thermostat

•

Install the base onto an electrical

box.

Place the FAN switch on Yes only if

the thermostat is connected to

fan-forced heater. Otherwise leave

at No.

•

If applicable, peel off the protective

sticker from the thermostat’s screen.

FAN switch

Keep air vents at top and

Reinstall the faceplate on the base

and secure it in place with the screw.

bottom of thermostat clean

and unobstructed at all times.

Apply power to the thermostat at the

main electrical panel.

TH303

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:

Time Menu

Select the format

Set the hour

Set the minutes

Set the year

Set the month

Set the date

Normal display

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!

00-303-000-C

Automatic (Auto) mode

In Automatic mode, the thermostat follows the programmed schedule (see page 12).

To place the thermostat in Automatic (Auto) mode:

Normal display

Auto mode

Select Auto

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.

TH303

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:

Normal display

Manual mode

Select Manual

Set temperature

00-303-000-C

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, see page 16.

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:

Normal display

Away mode

Select Away

TH303

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:

Optional (last settings are used by default)

Countdown

mode

NOTE:

Normal display

At any time during the

Countdown mode, you

can adjust the count-

down time and tempera-

ture by performing the

steps shown inside the

dotted rectangle.

Select Countdown

Set time

Set temperature

To cancel the Countdown mode

00-303-000-C

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

Saturday and Sunday

(

Mo, Tu, We, Th & Fr)

(Sa & Su)

Period

Wake

Starting time

6:00 (6:00 AM)

8:00 (8:00 AM)

18:00 (6:00 PM)

22:00 (10:00 PM)

Temperature

21.0°C (70°F)

16.5°C (62°F)

21.0°C (70°F)

16.5°C (62°F)

Starting time

Temperature

6:00 (6:00 AM)

21.0°C (70°F)

Leave

Return

Sleep

-:--

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.

TH303

Modifying the schedule

To modify the schedule, proceed as follows:

Select Exit to return

to normal display

Select Exit to return to

the day selection menu

(

3 sec.)

Normal display

Program menu

Select the days*

Select the period

Set the hour

Set the minutes

Set the temperature

The days can be selected collectively (Monday to Friday, Saturday & Sunday, or Monday to Sunday) or individually.

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

00-303-000-C

Configuration parameters

Display

Parameter

Options

Default setting

To modify

Fan¹

Yes / No

FAN switch (see page 6)

Time format

12h / 24h

°C / °F

24h

Time menu (see page 7)

Temperature unit

Away temperature²

Daylight Saving Time³

Early Start⁴

°C

10°C (50°F)

5°C - 30°C (41°F - 86°F)

On / Off

Configuration menu

(

see page 16)

On / Off

Off

TH303

Configuration parameters (cont’d)

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 Wake and Return periods.

When Early Start is disabled (Off), heating starts only at the beginning of Wake and Return periods; thus

there is a delay before you reach the desired temperature.

00-303-000-C

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.

Configuration

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

Set unit of

Set Away

Set Daylight

Saving Time

Set

temperature

Early Start

To confirm

normal display

TH303

In case of difficulty

PROBLEM

SOLUTIONS

This is normal. Ensure that the heater capacity does not exceed the thermostat’s

maximum load.

Thermostat is hot.

Remediate if any the following conditions exists:

Displayed temperature

is wrong.

•

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 The thermal protection device on the heater has temporarily opened. This can

reappears after a few

minutes.

happen if the heater is obstructed by furniture or curtain and has overheated, or if

the heater’s thermal protection device is too sensitive.

The thermostat was without power for more than 4 hours. Set its clock and date

TIME is flashing.

(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.

00-303-000-C

Customer assistance

If you have any questions about the product, contact us at:

05 Montrichard

Saint-Jean-sur-Richelieu, Quebec

J2X 5K8

Canada

To reset the thermostat,

press both 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.

Tel: 1-800-831-AUBE (2823)

Email: aube.service@honeywell.com

For more information on our products, go to

www.aubetech.com

TH303

Specifications

Supply: 120/240 VAC, 60 Hz

Minimum load:

0.83 A (resistive only)

00 W @ 240 VAC

00 W @ 120 VAC

Maximum load:

10.4 A (resistive only)

500 W @ 240 VAC

250 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.

00-303-000-C

-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,

(

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 Honeywell. Honeywell will make the determination whether the product should be returned, or whether a replace-

ment 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 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 PUR-

POSE, 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.

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