uniwatt UTE202NP Series User manual

Energy Veried
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UNIWATT is a line of products manufactured by Stelpro.For more information
please contact customer service.
INSUTE202NP1215
NON PROGRAMMABLE
ELECTRONIC THERMOSTAT
USER’S GUIDE
UTE202NP SERIES

2INSUTE202NP1215
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 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.

3INSUTE202NP1215
The UTE202NP electronic thermostat can be used to control electric heating
units such as electric baseboards, convectors, or forced-air units. 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 1.25 A to 8.3 A (120/240 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 8.3 A with a resistive load (2000 W @ 240 VAC
and 1000 W @ 120 VAC);
• electrical current lower than 1.25 A with a resistive load (300 W @ 240 VAC and
150 W @ 120 VAC); and
• central heating system.
PARTS SUPPLIED:
• one (1) thermostat with a door on the front;
• two (2) mounting screws;
• two (2) solderless connectors suitable for copper wires.
DESCRIPTION

4INSUTE202NP1215
SELECTION OF THE THERMOSTAT LOCATION
The thermostat must be mounted to a connection box on a wall facing the heating
unit, at around 1.5 m (5 feet) above the floor 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 fireplace 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 flow (e.g. behind a door), or with frequent air drafts
(e.g. head of stairs).
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.
INSTALLATION

5INSUTE202NP1215
3. Make the electrical connections using the supplied solderless connectors.
When making the connection with aluminum wire, make sure that you are using
connectors identified CO/ALR. Please note that the thermostat wires do not
have polarity. Therefore, the way they are connected is not important.
2-WIRE INSTALLATION
4-WIRE INSTALLATION

6INSUTE202NP1215
4. Open the door with your hand or by using a flat screw driver.
a. With hand: open by freeing the door at the top right corner of the thermostat.
b. Using a flat screw driver: insert the screw driver in the side slot at the top right
corner of the thermostat and turn delicately until the door is freed.
5. Place all the wires inside the electrical box.
6. Fix the thermostat to the electrical box using the two screws provided.
7. Close the thermostat door.
8. Turn on the power.

7INSUTE202NP1215
TEMPERATURE SET POINTS
The figures 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 top button to increase the value, or the
bottom button to decrease it. Set points can be adjusted by increments of 0.5°C
(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).
When you press a button the current set point is shown and the flashes. You
can turn off the thermostat by lowering the set point below 3°C (37°F). The set point
value displayed will be --.-, and heating system start up will be impossible.
Ambient temperature
/
Set point
Heating power
indicator
Security mode
Fan mode
Top button
Pictograms
Fr
ost-free warning
Comfort mode
Bottom button
OPERATION

8INSUTE202NP1215
DISPLAY IN EITHER DEGREES CELSIUS/FAHRENHEIT
The thermostat can display the ambient temperature and the set point in degrees
Celsius (standard factory setting) or Fahrenheit.
1. To switch from degrees Celsius to degrees Fahrenheit and vice versa,
simultaneously press down the two buttons for 3 seconds. Once the three
seconds are over the °C or °F symbol will flash. Release the buttons.
2. Press down the top button to switch from the degrees Celsius to the degrees
Fahrenheit, and conversely. The degree Celsius or Fahrenheit symbol will be
displayed.
3. When the adjustment is completed, release the buttons and wait for 5 seconds
to exit the adjustment function.
HEATING POWER INDICATOR
The level of power used to maintain the temperature at the set point is expressed
as a percentage indicated by the number of bars in the thermometer displayed. The
heating power used is displayed as follows:
4 bars = 75% to 100%
3 bars = 50% to 75%
2 bars = 25% to 50%
1 bar = 1% to 25%
0 bar = no heat
FROST-FREE WARNING
The Snowflake icon is displayed when the temperature set point is between 3°C
(37°F) and 5°C (41°F). A minimum temperature will be maintained to ensure frost
control.

9INSUTE202NP1215
SECURITY MODE
It is possible to impose a maximum temperature set point by activating this
mode. Then, it becomes impossible to exceed this set point, regardless of the
current mode (Day/Night). However, it is still possible to lower the set point at
your discretion.
PROCEDURES TO ACTIVATE THE SECURITY MODE
1. To activate the Security option, adjust the set point to the desired maximum
temperature.
2. Simultaneously press down the two buttons for more than 13 seconds, until the
icon appears (note that the °C or °F symbol will blink after 3 seconds, but
continue to keep both buttons pressed down).
3. Release the buttons. The thermostat is now locked.
PROCEDURES TO DEACTIVATE THE SECURITY MODE
1. To deactivate the Security mode, start by cutting off the thermostat power at circuit
breaker and wait at least 20 seconds.
2. Turn the thermostat power back on and the icon will blink for a maximum of
5 minutes.
3. Simultaneously press down both buttons for 13 seconds. After 13 seconds, the
icon will disappear and the degrees symbol (°C or °F) will stop blinking, indicating
that the Security mode is deactivated. Release the buttons.
FAN MODE
The activation of the Fan mode is similar to the Celsius/Fahrenheit adjustment.
To activate or deactivate the Fan mode, you must press down both buttons
simultaneously for 3 seconds. Once the 3 seconds have passed, the °C or °F
symbol will blink. At this point, release the buttons. You must then press down the
bottom button to activate or deactivate the Fan mode. The Fan pictogram will turn
on or off depending on the case.

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When the Fan mode is activated, the stop or minimum heating time (off/on) for
a complete 10 minute cycle is established at 90 seconds (factory setting). You
can adjust it from 90 to 300 seconds. This is done to limit the amount of times
the thermostat will turn on or off. Also, if the thermostat reaches a differential
superior or inferior to the 2 degrees requested, it will shut off immediately. The
deactivation of the Fan mode will cause the thermostat to go back to the heating
cycle previously programmed.
Once the adjustment is finished, you can exit the adjustment mode by not
pressing any buttons for 5 seconds.
VENTILATION INTERVALS DURATION
You can adjust the minimum time between the fan startups and shutdowns. This
adjustment is similar to the fan activation procedure. First, you have to enter the
fan adjustment mode, as described in the previous section. Then, you must press
down the bottom button for 3 seconds, until the icon blinks. A duration in
seconds will appear. You can adjust it from 90 (factory setting) to 300 seconds
by increments of 30 seconds. Once the adjustment is done, you can exit the
adjusment mode by not pressing down any button during 5 seconds.
PARAMETERS SAVING AND POWER FAILURES
The thermostat saves some parameters in a non-volatile memory to be able to
recover them after being shut off (a power failure, for example). These parameters
are the set point, the state of the Security mode, the maximum symbol of the
Security mode, the Celsius/Fahrenheit symbol, the Fan mode and the number of
minutes associated to a heating cycle. These parameters are saved every minute
if any changes are made.
The Security mode is reactivated if it was previously activated. However, the icon
will blink for 5 minutes, during which it is possible to deactivate the Security mode
by pressing down both buttons simultaneously for 13 seconds. If this is not done,
the Security mode will remain activated and the icon will stop blinking.

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PROBLEM DEFECTIVE PART OR PART TO CHECK
The thermostat is hot.
• In normal operating conditions, the thermostat hous-
ing can reach nearly 40°C at maximum load. That is
normal and will not affect the effective operation of the
thermostat.
Heating is always on. • Check if the thermostat is properly connected. Refer to
the installation section.
Heating does not run even
if the thermostat indicates
it is on.
• Check if the thermostat is properly connected. Refer to
the installation section.
The display does not turn on.
• Check if the thermostat is properly connected. Refer to
the installation section.
• Check the power supply at the electrical panel.
• Check if the heating unit has a switch. If so, ensure that
this switch is turned on.
The display turns off a few
minutes and then turns
on again.
• The thermal protection of the heating unit has opened
due to overheating. Check if the heating unit is in good
condition of operation and that clearance around the ap-
pliance is according to the manufacturer’s specifications.
The display has low contrast
when heating is on.
• The load is lower than the minimum load. Install a heating
unit that is within the load limits of the thermostat.
The displayed ambient
temperature is incorrect.
• Check the presence of an air stream or a heat source
near the thermostat, and correct the situation.
The display indicates E1, E2,
E3 and E4. • Faulty thermal sensor. Contact the customer service.
Weak luminosity of the
display.
• Possibility of a bad contact. Check thermostat wirings.
Refer to the installation section.
N.B. If you are unable to solve the problem after having veried these points, please communicate
with our customer service. Consult www.stelpro.com for the phone numbers.
TROUBLESHOOTING

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LIMITED WARRANTY LIMITED WARRANTY LIMITED WARRANTY LIMITE
LIMITED WARRANTY LIMITED LIMITED WARRANTY LIMITED WARRANTY
LIMITED WARRANTY
This unit has a 2-year warranty. If
at any time during this period the
unit becomes defective, it must be
returned to its place of purchase
with the invoice copy, or simply
contact our customer service
department (with an invoice copy in
hand). In order for the warranty
to be valid, the unit must
have been installed and used
according to instructions. If the
installer or the user modies the
unit, he will be held responsible
for any damage resulting from
this modication. The warranty is
limited to the factory repair or the
replacement of the unit, and does
not cover the cost of disconnection,
transport, and installation.
E-mail: [e-mail]
Web site: www.stelpro.com
LIMITED WARRANTY LIMITED
STELPRO DESIGN INC. | Saint-Bruno-de-Montarville | Québec | J3V 6L7
SUPPLY VOLTAGE:
120/208/240 VAC, 50/60 Hz
MINIMUM ELECTRICAL CURRENT
WITH A RESISTIVE LOAD:
1.25 A
150 W @ 120 V
260 W @ 208 V
300 W @ 240 V
MAXIMUM ELECTRICAL CURRENT
WITH A RESISTIVE LOAD:
8.3 A
1000 W @ 120 VAC
1730 W @ 208 VAC
2000 W @ 240 VAC
TEMPERATURE DISPLAY RANGE:
0 °C to 40 °C (32 °F to 99,5 °F)
TEMPERATURE DISPLAY
RESOLUTION:
0.5 °C (0.5 °F)
TEMPERATURE SET POINT RANGE:
3 °C to 30 °C (37 °F to 86 °F)
TEMPERATURE SET POINT
INCREMENTS:
0.5 °C (1 °F)
STORAGE TEMPERATURE:
-40 °C to 50 °C (-104 °F to 122 °F)
TECHNICAL SPECIFICATIONS