Stelpro STE302R2+ User manual

INSSTE302R2+0711
“STE302R2+”
Electronic thermostat
User’s Guide
www.stelpro.com
For further information or to consult this guide online,
please visit our Web site.

INSSTE302R2+0711
WARNING WARNING
Before installing and operating this product, the
owner and/or installer must read, understand
and follow these instructions and keep them
handy for future reference. If these instructions
are not followed, the warranty will be considered
null and void and the manufacturer deems no
further responsibility for this product. Moreover,
the following instructions must be adhered to
in order to avoid personal injuries or property
damages, serious injuries and potentially fatal
electric shocks. All electric connections must
be made by a qualied electrician, according to
the electric and building codes effective in your
region. Do NOT connect this product to a supply
source other than 120VAC, 208VAC or 240VAC,
and do not exceed the load limits specied.
Protect the heating system with the appropriate
circuit breaker or fuse. You must regularly
clean dirt accumulations on the thermostat. Do
NOT use uid to clean thermostat air vent. Do
not install thermostat in a wet place. However,
installing it in isolated walls is allowed.
Note
When a part of the product specication must be changed to improve operability or
other functions, priority is given to the product specication itself. In such instances, the
instruction manual may not entirely match all the functions of the actual product.
Therefore, the actual product and packaging, as well as the name and illustration, may
differ from the manual.
The screen/LCD display shown as an example in this manual may be different from the
actual screen/LCD display

INSSTE302R2+0711
1.Description
The STE302R2+ non programmable electronic thermostat
can be used to control electric heating units such as electric
baseboards, convectors, or aeroconvectors. It keeps the
temperature of a room at the requested set point with a high
degree of accuracy. This product is designed for installations
with electrical current - with a resistive load - ranging from
0 A to 12,5 A (120/208/240 VAC). It possesses a user-friendly
interface. Furthermore, it gives you the possibility to control
the temperature of a room with great precision.
This thermostat is not compatible with the following
installations:
•electrical current higher than 12,5A with a resistive load
(3000 W @ 240 VAC, 2600 W @ 208 VAC and 1500 W @
120 VAC);
•centralheatingsystem;
•inductiveload(presenceofacontactororarelay).
Parts supplied:
•one(1)thermostat;
•two(2)mountingscrews;
•four(4)solderlessconnectorssuitableforcopperwires.

INSSTE302R2+0711
2. Installation
Selection of thermostat location
The thermostat must be mounted on a connection box on a
wall facing the heating unit, at around 1.5m (5feet) above
the oor level, on a section of the wall exempt from pipes
or air ducts.
Do not install the thermostat in a location where temperature
measurements could be altered. For example:
•closetoawindow,onanexternalwall,orclosetoadoor
leading outside;
•exposeddirectlytothelightorheatoftheSun,alamp,a
replace or any other heat source;
•closeorinfrontofanairoutlet;
•closetoconcealedductsorachimney;and
•inalocationwithpoorairow(e.g.behindadoor),orwith
frequent air drafts conditions (e.g. head of stairs).

INSSTE302R2+0711
Thermostat mounting and connection
1. Cut off power supply on lead wires at the electrical
panel in order to avoid any risk of electric shock.
2. Ensure that the air vents of the thermostat are clean and
clear of any obstruction.
3.Using a screwdriver, loosen the screw retaining the
mounting base and front part of the thermostat. Remove
the front part of the thermostat from the mounting base by
tilting it upward.
4. Align and secure the mounting base to the connection box
using the two screws supplied.

INSSTE302R2+0711
5. Take the wires from the wall through the hole at the base
of the thermostat and connect them using the supplied
solderless connectors. When making the connection with
aluminum wire, make sure that you are using connectors
identied CO/ALR. Please note that the thermostat wires
do not have polarity. Therefore, the way they are connected
is not important.
Four-wire installation
6. Reinstall the front part of the thermostat on the mounting
base and tighten the screw at the bottom of the unit.
7. Turn on the power.
8. Set the thermostat to the desired setting (see the
following section).

INSSTE302R2+0711
3. Operation
Ambient temperature/
Timer
Heating power used
indicator
Smart mode
Security mode
Fan mode
Button (+)
Pictograms
Frost-free warning
Day mode
Night mode
Button (-)
Day/Night button
Backlit button
Powering on for the rst time
When powering on for the rst time, the thermostat is initially
set to Day mode. The temperature is displayed in Celsius and
is set at 21 degrees by default.
Language (French/English)
To switch the display from French to English and conversely,
press down the backlit button for 20seconds. The display is
set in French by default.

INSSTE302R2+0711
Backlit screen
The backlight screen lights up when you press down
a button. If you do not press down any button during
15seconds, the blacklight screen will turn off. It is possible
to turn on the backlit screen without modifying anything
by pressing down the (+) or (-) button once or by pressing
down the Sun or Moon button when the backlit screen is off.
You can also turn on the backlit screen by pressing down
the backlit screen button.
Temperature set points
The gures displayed above the pictogram indicate the
temperature set point. It can be displayed in degrees Celsius
or Fahrenheit (see “Display in degrees Celsius/Fahrenheit”).
To adjust the set point, just press down the (+) button to
increase the value, or the (-) button to decrease it. Set points
can be adjusted by increments of 0.5°C or 1°F. To quickly
scroll through the set point values, press and hold down
the button. The minimum set point is 3°C (37°F), and the
maximum set point is 30°C (86°F).

INSSTE302R2+0711
Day mode and Night mode
The thermostat includes a Day mode (Sun) and a Night
mode (Moon), both of them having their own independently
adjustable and recorded set point. The ambient temperature
is displayed above the set point, in degrees Celcius or
Fahrenheit. When switching from one mode to the other,
the system will automatically use the temperature set point
corresponding to the Day/Night mode selected. The standard
factory set point adjustment is 21°C (70°F) for the Day mode,
and 18°C (64°F) for the Night mode.
In order to manually switch from one mode to the other, press
down the Day or Night button and release it immediately.
In Day mode, you can turn off the thermostat by lowering the
set point below 3°C. The set point value displayed will be --.-,
and heating system start up will be impossible.
Night mode timer
The Night mode features a timer that automatically returns
to the Day mode after a selectable time period. This timer
allows the temporary use of a temperature set point. The
standard factory adjustment of the timer is 8 hours. With
this adjustment, the thermostat automatically returns to Day
mode 8hours after being switched to the Night mode.
For example, if you want a night temperature lower than the
day temperature, both Day/Night modes set points will rst
have to be set at the desired temperatures. Before bedtime,
the Night mode temperature set point will be activated by
switching manually to the Night mode. The timer is set for the
duration of the night. The thermostat will automatically return
to the Day mode at the end of the night, and the Day mode
temperature set point, which is higher, will become effective
at this time.

INSSTE302R2+0711
Night mode timer adjustment procedure
1. First, switch to the Night mode by pressing down the Day/
Night button and releasing it immediately (press it down
twice if the backlit screen is off and once if the backlit
screen is on).
2. From the Night mode, simultaneously press down the (+)
and (-) buttons for more than 3seconds. Then, the number
of programmed hours will be displayed by the three gures
at the top of the screen and ‘‘HRS’’ will be displayed
instead of the three gures at the bottom of the screen.
Then, you can release the buttons.
3. If needed, adjust the timer by pressing down the (+) button
to increase the value, or the (-) button to decrease it. The
adjustment range is from 1hour to 999hours. To quickly
scroll through timer values, press and hold down the
button.
4. When the adjustment is completed, release the buttons
and wait for 5 seconds to exit the adjustment function.
Then, the thermostat will automatically switch to the Night
mode.
NOTE: The Night mode timer will be automatically reinitialized
to the latest recorded value when switching from the
Day mode to the Night mode. It is not necessary to
readjust the timer every time you switch to the Night
mode. The timer is also reinitialized when this value
is adjusted.
Once the timer has completed its cycle and when the
thermostat is in the Day mode, you must manually return to
the Night mode. If you want to automatically return to the
Night mode, the Smart mode must be selected.