User`s guide
www.stelpro.com
User’s guide
“STE362RNP”
Electronic thermostat
For further information or to consult this guide online,
please visit our Web site.
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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 qualified 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 specified. Protect the heating system with the appropriate circuit breaker or fuse. You must regularly clean dirt
accumulations on the thermostat. Do NOT use
fluid 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 specification must be changed to improve operability or
other functions, priority is given to the product specification 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
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1.Description
The STE362RNP 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 2 A to 15 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 15 A with a resistive load
(3600 W @ 240 VAC, 3120 W @ 208 VAC and 1800 W @
120 VAC);
•electrical current lower than 2 A with a resistive load (480 W
@ 240 VAC, 416 W @ 208 VAC and 240 W @ 120 VAC); and
•central heating system.
Parts supplied:
•one (1) thermostat;
•two (2) mounting screws;
•two (2) solderless connectors suitable for copper wires.
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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 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 conditions (e.g. head of stairs).
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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.
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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
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
6. Reinstall the front part of the thermostat on the mounting
base and tighten the screw at the bottom of the unit.
7. T
urn on the power.
8. Set the thermostat to the desired setting (see the following
section).
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3. Operation
Ambient temperature/
timer
Heating power used indicator
Pictograms
Fan mode
Smart mode
Frost-free warning
Day mode
Night mode
Security mode
Top button
Bottom button
Powering on for the first time
When powering on for the first time, the thermostat is initially
set to ‘Day’ mode. The temperature is displayed in Celsius
and is set at 21 degrees by default.
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 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). In Day mode, you can
turn off the thermostat by lowering the set point below 3°C.
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The set point value displayed will be --.-, and heating system
start up will be impossible.
Day mode and Night mode
The thermostat includes a Day mode and a Night mode,
both of them having their own independently adjustable and
recorded set point. 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.
The current Day/Night mode selection is indicated on the
display by the Sun or Moon icon. In order to manually switch
from one mode to the other, simultaneously press down the
two buttons and release them immediately.
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 first
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.
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Night mode timer adjustment procedure
1. If necessary, adjust the Day/Night mode set points at the
desired temperatures. If needed, switch from one mode to
the other by simultaneously pressing down the two buttons and releasing them immediately.
2. From the Night mode, simultaneously press down the two
buttons for more than 3 seconds until the Moon icon blinks
and the letter H appears.
3. If needed, adjust the timer by pressing down the top button to increase the value, or the bottom 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.
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.
Smart mode
The Smart mode, which is associated to the Night mode
timer, allows alternating between the Day/Night modes and
the two corresponding set points over a 24-hour period.
Once activated, this mode allows an automatic return to the
Night mode after 24 hours. The Smart mode allows you to
define two periods in a single day with different set points.
For example, if the Smart mode is activated and the Night
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mode timer is set at 8 hours, the thermostat will be operating in the Night mode for 8 hours at the night temperature
set point. Then, it will return to the Day mode for 16 hours
operating at the day temperature set point. At the end of the
24-hour cycle, the thermostat will return to the Night mode,
and the cycle will start again. The 24-hour cycle starts with
the Night mode as soon as the Smart mode is activated. The
Smart mode activation should be made when you want to
return to the Night mode. The normal course of a cycle in the
Smart mode is as follows:
1- Night mode: activated for the duration of the Night mode
timer cycle. It returns to the Day mode when the timer
cycle is completed.
2- Day mode: activated for the remaining time of the 24-hour
cycle. It returns to the Night mode at the end of the 24hour cycle.
Adjustment procedure of the Smart mode:
1. If necessary, adjust the Day/Night set point at the desired
temperatures. If needed, switch from one mode to the other by simultaneously pressing down the two buttons and
releasing them immediately.
2. From the Night mode, simultaneously press down the two
buttons for more than 3 seconds. If needed, adjust the timer by pressing down the top button to increase the value,
or the bottom button to decrease it. The Night mode timer
adjustment range is from 1 hour to 23 hours in the Smart
mode. To quickly scroll through the timer values, press and
hold the bottom button.
NOTE: If you set the timer to any value exceeding 23 hours,
it will be impossible to activate the Smart mode and if
it was activated, the Smart mode will be deactivated.
3. Activate the Smart mode by simultaneously pressing down
the two buttons for at least 3 seconds. The
icon will
appear. If the Smart mode was already activated, the same
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procedure should be used to deactivate it.
4. When the adjustment is completed, release the buttons
and wait for 5 seconds to exit the adjustment function.
NOTE: It is always possible to manually change the Day/
Night mode during a 24-hour cycle. However, any
manual return to the Night mode will re-initialize the
Night mode timer to the latest value recorded, which
modifies the cycle in progress. In all cases, at the
end of the 24-hour cycle, the thermostat will return
to the Night mode and start a new cycle. It is thus
not necessary to readjust the Smart mode when
a manual change is made to the Day/Night mode.
When turning back on after being powered off (because of a power outage, for example), the automatization of the Day/Night modes is deactivated, and, if
previously activated, the
icon will blink. The blinking will stop as soon as you press down a button.
Display in degrees Celsius/Fahrenheit
The thermostat can display the ambient temperature and
the set point in degrees Celsius (standard factory setting) or
Fahrenheit.
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Selection procedure for degree Celsius/Fahrenheit display.
1.From the Day mode, simultaneously press down the two
buttons for more than 3 seconds.
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.
Temperature Control
The thermostat controls the temperature of the ambient air
with precision. When the heating comes on or shuts off, it is
normal to hear a « click ». This noise is caused by the relay
opening or closing, depending on the situation.
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Programmable Heating Cycle
This setting allows the length of a heating cycle to be adjusted.
To activate this programmable heating cycle setting, the thermostat should be in Day mode and the user must press down
on the two buttons for 20 seconds. Note that the pictogram
displaying the degrees (C or F) will blink after three seconds,
will stop blinking after 13 seconds and a Lock icon will appear
or disappear depending on the setting (the thermostat Security mode). It is important to keep the two buttons pressed
down to avoid switching to one of these settings. After the 20
seconds, the 2 larger scale numbers on the LCD screen will
display the number of minutes for a heating cycle. There will
also be a smaller case ‘C’ to indicate cycle. The programmable
heating cycle can be adjusted between 8 and 15 minutes.
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.
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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 mode, from the Day mode adjust
the day setpoint to the desired maximum temperature.
2.From the Day mode, simultaneously press down the two
buttons for more than 13 seconds, until the
icon displays (note that the °C or °F will appear after 3 seconds
continue to keep both buttons pressed down or you will
find yourself in the degree adjustment mode or in Fan
mode)
3.Release the buttons. The thermostat is now locked.
Procedures to deactivate the Security mode
1.To deactivate Security mode, start by cutting thermostat
power at circuit breaker and wait at least 20 seconds.
2.Turn thermostat power back on and the
for a maximum of 5 minutes.
icon will blink
3.Simultaneously press both buttons for 13 seconds. (Note
that the pictogram displaying the degrees (C or F) will blink
after three seconds, it is important to keep the two buttons
pressed down to avoid switching to the adjustment or Fan
mode). 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.
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Fan mode
The activation of the Fan mode is similar to the Celsius/Fahrenheit adjustment. To activate or deactivate Fan mode, you
must press down both buttons simultaneously for at least
3 seconds while in Day mode. Once the 3 seconds have
passed, C or F will blink. At this point, release the buttons.
You must then press down on the bottom button to activate
or deactivate the Fan mode. The fan pictogram will turn on or
off depending on the case.
When Fan mode is activated, the stop or minimum heating
time (OFF/ON) for a complete 15 minute cycle is established
at 5 minutes. This is done to limit the amount of time 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 before the end of the minimum heating time of
5 minutes. The deactivation of the Fan mode will cause the
thermostat to go back to the heating cycle previously programmed. Once the adjustment finished, you can exit the Fan
mode by not pressing down on any buttons for 5 seconds.
Saving the parameters 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 Day/
Night settings, the Smart mode, the state of the Security
mode, the maximum setting of the Security mode, the Celsius/Fahrenheit mode, the Fan mode, the ideal changeover
time of the relay and the number of minutes associated to a
heating cycle, the number of hours of the night time-switch,
the number of hours remaining on the night time-switch and
the day/night current. These parameters are saved every
minute if any changes are made, except for the Day/Night
mode and the remaining time left on the time-switch. These
are saved only if the Security mode had not been activated.
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Please note that the Smart mode is not automatically reactivated when thermostat is turned on. The
icon blinks to
warn the user that the mode was previously activated when
thermostat was shut off but is no longer active.
Furthermore, when power is shut off, the existing Day/Night
mode is recovered only if the Smart mode was previously
deactivated. In the opposite case, the Day mode is automatically reactivated. The Security mode is also reactivated if it
was activated before being shut off. However, the icon will
blink for 5 minutes, during which it is possible to deactivate
the Security mode by pressing down on the top and bottom
buttons simultaneously for 13 seconds. If this is not done,
the Security mode will stay activated and the icon will stop
blinking.
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4. Troubleshooting
Problem
Solution
The thermostat is hot.
In normal operating
conditions, the thermostat
housing 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
come 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
appliance 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.
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The display indicates
E1 or E2.
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
verified these points, please communicate with our
­customer service. Consult our website for the phone
numbers.
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5. Technical Specifications
Supply voltage:
120/208/240 VAC, 50/60 Hz
Maximum electrical current with a resistive load:
15 A
3600 W @ 240 VAC
3120 W @ 208 VAC
1800 W @ 120 VAC
Temperature display range:
3°C to 40°C (37°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)
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Limited Warranty
This unit has a 3-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 modifies the unit, he will be held
responsible for any damage resulting from
this modification. 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.
Customer service
Stelpro Design inc.
1041, Parent Street
Saint-Bruno-de-Montarville (Quebec)
Canada J3V 6L7
Email: contact@stelpro.com
Web site: www.stelpro.com
INSSTE362RNP0711
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