Stelpro STCPW5 User manual

USER’S GUIDE
STCP
MULTIPLE PROGRAMMING ELECTRONIC
THERMOSTAT FOR HEATING FLOORS
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For further information or to consult
this guide online,please visit our website
at www.stelpro.com
INSSTCP5MA0116
@
If you are viewing this guide online, please note
that this product has been slightly modied since
its introduction. To obtain the guide corresponding
to your model (fabrication date at the back of the
thermostat before January 2016), please contact
customer service.

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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 electrical 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 specied load
limits. Protect the heating system with the appropriate
circuit breaker or fuse. You must regularly clean dirt
accumulations on or in the thermostat. Do NOT use uid
to clean thermostat air vents. Do NOT use where exposed
to water.
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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The STCP electronic thermostat can be used to control heating
oors with electrical current − with a resistive load − ranging
from 0 A to 16 A at 120/208/240 VAC. It has an easy user
interface and can manage up to four programming periods
a day. It keeps the temperature of a room ( mode) and a
oor ( mode) at a requested set point with a high degree
of accuracy.
Floor Mode (factory setting): this control method is ideal
in areas where you want a hot oor at any time and when the
temperature of the ambient air can be high without causing
discomfort. For example, in a bathroom.
Ambient Mode (you only have to press down the A/F
button to switch from one mode to the other): this control
method is ideal when you want a stable ambient air temperature
(without uctuation). Usually, this mode is used in large and
often occupied rooms where temperature variations can be
uncomfortable. For example, in a kitchen, a living room or a
bedroom.
Some factors cause variations in ambient air temperature. They
include large windows (heat losses or gains due to outside
temperature) and other heat sources such as a central heating
system, a replace, etc. In all these cases, the mode will
ensure a uniform temperature.
This thermostat is not compatible with the follow-
ing installations:
• electrical current higher than 16 A with a resistive
load (3840 W @ 240 VAC, 3330 W @ 208 VAC and
1920 W @ 120 VAC);
• inductive load (presence of a contactor or relay); and
• central heating system.
DESCRIPTION

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Parts Supplied:
• one (1) thermostat;
• two (2) mounting screws;
• four (4) solderless connectors suitable for copper wires;
• one (1) oor sensor.
Selection of thermostat and sensor location
The thermostat must be mounted on a connection box, 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 (e.g. head of stairs).
To install the sensor, refer to the installation guide of your
heating oor.
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;
Ensure that the thermostat will be installed on a
junction box located in an uninsulated wall;
2. Ensure that the air vents of the thermostat are clean and
clear of any obstructions;
INSTALLATION

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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 upard;
4. Align and secure the mounting base to the connection box
using the two screws supplied;
5. Route wires coming from the wall through the hole of the
mounting base and make the required connections using
the “Four-wire installation” gure, and using the supplied
solderless connectors. A pair of wires (black) must be
connected to the power source (120-208-240 VAC) and
another pair (yellow) must be connected to the heating
cable (refer to the drawings displayed on the back of the
thermostat). For connections with aluminum wires, you must
use CO/ALR connectors. Please note that thermostat wires
do not have polarity, meaning that any wire can be connected

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to the other. Then, connect the wires of the oor temperature
sensor at the indicated location behind the thermostat.
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).
4-WIRE INSTALLATION

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Security mode
Ambient
temperature
(Ambient mode)
Floor
temperature
(Floor mode)
First Start-up
At the rst start-up, the thermostat is initially in the Man
(manual) and modes. The temperature is displayed in
degrees Celsius and the standard factory set point adjustment
is 21°C. The hour displays --:-- and must be adjusted before
switching to the Auto or Pre Prog mode. The maximum oor
temperature is limited to 28°C.
Ambient and Floor Temperature
The gures displayed below the icon indicate the ambient
temperature, ±1 degree. The gures displayed below the
icon indicate the oor temperature, ±1 degree. Both
temperatures can be displayed in degrees Celsius or Fahrenheit
(see “Display in degrees Celsius/Fahrenheit”).
OPERATION

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Temperature Set Points
The gures displayed beside the icon indicate the ambient
() or the oor ( ) temperature set points. They can be
displayed in degrees Celsius or Fahrenheit (see “Display in
degrees Celsius/Fahrenheit”).
Out of any adjustment mode, press down the + button to
increase the set point, or the - button to decrease it. Set points
can only be adjusted by increments of 1 degree. To quickly
scroll through the set point values, press and hold down the
button.
Maximum Floor Temperature Limitation
At any time, the oor temperature (in mode) is maintained
at less than 28°C (82°F) in order to avoid overheating caused
by an excessive heating request, which could damage some
materials or be detrimental for health.
Adjustment of the Hour and the Day of the Week
Adjustment procedure of the hour and the day of the week.
1. Press down the Day/Hr button, whether it is in Man, Auto or
Pre Prog mode.
2. At this moment, the icon and the day of the week blinks
and you can adjust the day of the week using the + or -
button and conrm your choice by pressing down the Mode
or Day/Hr button. You can also press down the desired
day of the week button without using the + or - button and
conrm your choice using the Mode or Day/Hr button.
3. The two gures indicating the hour blink. You must adjust
them using the + or - button and conrm your choice by
pressing down the Mode or Day/Hr button.
4. The two gures indicating the minutes blink. You must adjust
them using the + or - button and conrm your choice by
pressing down the Mode or Day/Hr button. The adjustment
is then completed and the thermostat returns to the previous
mode.

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At any time, you can exit the adjustment mode of the day and
the hour by pressing down the Exit button or by not pressing
any button during 1 minute.
In case of a power failure, the thermostat is self-sufcient for
2 hours. If the failure lasts less than 2 hours, the thermostat
saves the adjustment of the hour and the day of the week.
When the power is restored after an extensive failure (more
than 2 hours), the hour and the day of the week are recovered,
but you must update them.
Display in Degrees Celsius/Fahrenheit
The thermostat can display the ambient temperature and
the set point in degrees Celsius (standard factory setting) or
Fahrenheit.
Adjustment procedure for degrees Celsius/Fahrenheit
display.
1. To switch from the degrees Celsius to the degrees
Fahrenheit, and conversely, simultaneously press down the
+ and - buttons for more than 3 seconds until the icon
blinks.
2. Press down the + button to switch from the degrees Celsius
to the degrees Fahrenheit, and conversely. The degree
Celsius or Fahrenheit symbol is displayed.
3. When the adjustment is completed, press down the Exit
button or do not press down any button during 5 seconds to
exit the adjustment function.
This adjustment can be done from any of the three principal
modes.
Manual Mode (Man)
From the Manual mode, you can manually adjust the thermostat
set point by pressing down the + or - buttons to increase the
value, or to decrease it. Please note that if the backlight is off,
the set point will not change when you press down these buttons

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for the rst time instead, the backlight will be activated. To
quickly scroll through the set point values, press and hold down
the button. From mode, the set points can range between 3
and 35°C and can only be adjusted by increments of 1°C (from
37 to 95°F; by increments of 1°F from the Fahrenheit mode).
From mode, the set points can range between 3 and 28°C
(from 37 to 82°F). The thermostat will turn off if the set point is
lowered below 3°C (37°F), and the set point value displayed
will be --. The standard factory set point adjustment is 21°C
(mode). From this mode, the screen displays the /
mode temperature, the /mode set point, the hour and
the day of the week.
This mode is initially activated when the power is turned on for
the rst time. You must adjust the hour (as described in the
section “Adjustment of the hour and the day of the week”)
before switching to other modes by pressing down the Mode
or Pre Prog button.
Automatic Mode (Auto)
To switch from the Manual mode to the Automatic mode, and
conversely, press down the Mode button. The Man or Auto icon
is displayed at the bottom of the screen as applicable.
From the Automatic mode, the thermostat adjusts the set points
according to the programmed periods. If no data is entered,
the thermostat acts as in Manual mode and the standard
factory set point adjustment is 21°C ( mode). It is always
possible to manually adjust the set point using the + or - button.
The selected set point will be effective until one period is
programmed, which represents an hour and a day of the week.
Note that, if the set point is lowered to off (--), the programming
will not be effective. It is possible to program 4 periods a day,
meaning that the set point can change automatically up to 4
times a day. The period order is not important.
From this mode, the screen displays the temperature, the set
point, the hour, the day of the week and the current programmed
period number (1 to 4; as applicable).

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After programming a day of the week, you can copy this set-
ting; see “Copy of the Programming”.
1. To access the Programming mode, press down the day of
the week button that you want to program (Mon to Sun).
Once you release the button, the selected day of the week is
displayed, the icon blinks and the period number 1 blinks
too.
2. Select the period number (1 to 4) that you want to program
using the + or - button. For each period, the hour and the set
point are displayed. The hour displays --:-- and the set point
displays -- if there is no programming for the period. You
must conrm the period by pressing down the Mode button.
3. The two gures representing the hour blink to indicate that
you can adjust them (from 00 to 23) using the + or – button.
You must conrm the adjustment by pressing down the
Mode button.
4. After conrmation, the gures representing the minutes (the
last 2 gures) blink. You can adjust and conrm them in the
manner described in point 3. Note that the minutes can only
be adjusted by increments of 15 minutes.
5. The period set point blinks and you can adjust it using the
+ or - button. You must conrm the adjustment by pressing
down the Mode button.
6. After set point conrmation, the programming is completed.
The following period number blinks. For example, if the
previously programmed period was 1, period 2 blinks. It is
then possible to continue the programming of this period by
pressing down the Mode button. You can also select another
period using the + or – button.
7. At the end of period 4 programming, you automatically exit
the Programming mode.
At any time, you can exit the Programming mode
using one of these 3 methods:
1-Press down the button of the day you are adjusting.

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2-Press down the button of another day to program it.
3-Press down the Exit button.
Moreover, if you do not press down any button for more than
1 minute, the thermostat will exit the Programming mode. In all
cases, the programming is saved.
Anticipated Start
This mode enables the room to reach the selected temperature
at the programmed hour by starting or stopping the heating
before this time. In fact, the thermostat estimates the delay
required to reach the set point of the next period at the
programmed hour. This delay is obtained by the observation of
the temperature variations in the room and the results obtained
during the preceding anticipated starts. Therefore, results
should be increasingly precise day after day. From this mode,
the thermostat displays at any time the set point ( ) of the
current period. The icon will blink when the anticipated start
of the next period begins.
For example, if the requested temperature between 8h00am
and 10h00pm is 22°C and between 10h00 pm and 8h00am
is 18°C, the set point ( ) will indicate 18°C until 7h59am
and will switch to 22°C at 8h00am. Thus, you will not see the
progression carried out by the anticipated start, only the desired
result.
To activate or deactivate the anticipated start, the thermostat
must be in Auto or Pre Prog mode. Then, you must press down
the Mode button for at least 5 seconds. The anticipated start
icon ( ) is displayed or hidden to indicate the activation or the
deactivation of the mode. This modication will apply to the Auto
as well as the Pre Prog mode. If you modify the temperature set
point manually when these modes are activated, the anticipated
start of the next period will be cancelled.
N.B. Please note that the anticipated start is initially activated
when you enter the Automatic or Preprogrammed mode. Thus,
you must deactivate it following the above procedure if needed.

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Copy of the Programming
You can apply the programming of one day of the week to other
days by copying the programming day by day or in block.
To copy the programming day by day, you must:
1. Press down the source day button (day to be copied).
2. Hold down this button and press down the destination days
one by one. The screen displays the selected days. If an
error occurs when you are choosing a day, press down the
erroneous day again to cancel the selection.
3. After all selections are completed, release the source day
button. The selected days have the same programming as
the source day.
To copy the programming in block, you must:
1. Press down the source day button, hold it and press down
the last day of the block you want to copy.
2. Hold down these two buttons for 3 seconds. After this time,
the days of the block are displayed indicating that the copy
in block is activated.
3. Release the buttons. The days of the block are not displayed
anymore and the current day is displayed.
N.B. The block order is always increasing. For example, if the
source day is Thursday and the destination day is Monday, the
copy will only include Friday, Saturday, Sunday and Monday.
Erasing of the Programming
You must proceed as follows to erase a programming period.
1. Access the Programming mode as described previously
by pressing down the button corresponding to the day to
modify. Select the period to erase using the + or - button.
2. You do not have to press down the Mode button to conrm
the selection. However, doing so will not impact on the
erasing.

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3. Simultaneously press down the + and – buttons to erase
the period programming. The hour displays --:-- and the set
point displays -- to indicate that the programming is erased.
4. The erased period number blinks and you can select another
period to be erased or exit the Programming mode following
one of the 3 methods described above.
Preprogrammed Mode
The Preprogrammed mode allows an automatic programming
of the thermostat. 252 preprogrammings have been dened for
mode and 252, for mode (A0 to Z1 and 0 to 9; see
appendix 1 to consult the corresponding tables). This mode
gives you the possibility to quickly program the thermostat
using preprogrammings commonly used without having to do
it manually.
As from the Automatic mode, it is possible, at any time, to
manually adjust the set point. This set point will be effective until
the next set point change anticipated by the preprogramming.
Note that if the set point is lowered to off (--), the programming
will not be effective.
From this mode, the screen displays the /temperature,
the / set point, the hour, the day of the week and the
letter and current number of the preprogramming (A0 to Z1 and
0 to 9; alpha-numeric segment displayed on the right-hand side
of the hour; see appendix 1).
Choice of the Preprogramming
You can only access the Preprogramming mode when the
thermostat is out of any programming or adjustment function.
Make sure to choose the preprogrammings corresponding to
the right mode ( / , according to the attached tables).
You must proceed as follows to access the Preprogramming
mode:
1. Press down the Pre Prog button.

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2. The Pre Prog icon and saved selected preprogramming are
displayed. This preprogramming can range between 0 and
Z1.
3. From the Pre Prog mode, you can choose the rst 10
preprogrammings by pressing and releasing the Pre
Prog button. Each time you press down the button, the
preprogramming switches (from 0 to 9).
4. To choose advanced preprogrammings, (see appendix 1),
press down the Pre Prog button during 5 seconds. The letter
indicator blinks and you can adjust it by pressing down the +
or - button. Once the letter is chosen, you must validate your
choice by pressing down the Mode button. The letter ceases
to blink and the gure starts to blink. The choice of the gure
is made in the same way as that of the letter (using the + or
- button). Once the gure is selected, you must validate your
choice by pressing down the Mode button.
N.B. If you do not press down any button for more than one
minute or press the Exit button, the thermostat exits the
adjustment function and saves the current choice. Then, the
icons cease to blink and the letter and the gure corresponding
to the selected preprogramming blink alternately until you
select another preprogramming. If the Pre Prog mode is
activated and you successively press down the Pre Prog
button, the preprogramming comes back to 0 and increases
normally, as described above.
View of the Preprogramming
The view of the selected preprogramming is made in a way
similar to the Auto mode programming. However, it is impossible
to modify the preprogramming.
You must proceed as follows:
1. Press down the button corresponding to the day to view
(buttons Mon to Sun). When the selected day is displayed, the
icon and period number blink.

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2. Choose the period number (1 to 2) to view using the +
or - button. For each period, the hour and set point are
displayed. You can also press down the Mode button to
switch to period 2. If you press down the Mode button when
period 2 is displayed, you exit the View mode.
At any time, you can exit the View mode using one of
these 3 methods.
1- Press down the button of the day you are viewing.
2- Press down another day to view it.
3- Press down the Exit button.
If you do not press down any button during 1 minute, the
thermostat quits the view mode. At any time, it is possible to
change the day to be viewed by pressing down the desired day
button.
/ Mode
To switch from the mode to the mode, or conversely,
press down the A/F button (when you are not in any adjustment
mode). The previous temperature set point of this mode will be
restored. If a set point is programmed for the current period, it
will take this value.
Safe mode
If the thermostat fails to detect the presence of a oor sensor, it
will automatically revert to mode at a set point of 21°C. (with
a maximum set point temperature of 24°C.)
Sensor Selection
If you want to use the STCP thermostat of Stelpro with a
temperature sensor already installed in the oor (other than
the sensor supplied with this thermostat), you must contact the
Stelpro customer service to validate the compatibility between
the sensor and the thermostat. You must know the serial
number and name of the installed sensor.

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Temperature Control
The thermostat controls the oor/ambient temperature
(according to the /mode) with a high degree of accuracy.
When the heating starts or stops, it is normal to hear a “clic”
sound. It is the noise of the relay which opens or closes, as
applicable.
Backlighting
The screen lights up when you press down a button. If you
do not press down any button for more than 15 seconds, the
screen turns off.
If you press down the + or – button once when the backlight
is off, it will light up without changing the set point value. The
set point value will change only if you press down one of these
buttons again.
Ground-fault Circuit Interrupter (GFCI)
The GFCI is designed to reduce the risk of electric shock. It
can detect a leakage current of 5mA. If a defect is detected,
the GFCI device lights up, and both screen and heating system
circuit are deactivated. The GFCI can be reinitialized either
by pressing down the Test button or by disconnecting the
thermostat at the electrical panel.
Ground-fault Circuit Interrupter (GFCI) Verification
It is important to verify the ground-fault circuit interrupter
installation and operation on a monthly basis.
GFCI verification procedure
1- Increase the temperature set point until the heating power
bars are displayed (displayed in the bottom-right hand corner
of the screen).
2- Press down the Test button.
3- The following three cases can occur:
a) Successful test: The red light indicator of the thermostat
lights up and the display indicates the temperature. In

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this case, press down once again the Test button to
reinitialize the ground-fault circuit interrupter, the red
indicator turns off.
b) Failed test: The red indicator of the thermostat lights up
and the display indicates E4. In this case, disconnect the
heating system at the electrical panel and call Stelpro’s
customer service.
c) Failed test: The red indicator of the thermostat lights
up and the display shows only the time. In this case,
disconnect the heating system at the electrical panel and
contact Stelpro’s customer service. The thermostat has
detected a ground-fault.
Security mode
This mode imposes a maximum temperature set point which
is impossible to exceed regardless of the mode in progress.
However, it is still possible to lower the set point at your
discretion. The programming of the Auto and Pre-Prog modes
also respects this maximum temperature set point. Please note
that when the Security mode is activated, it is impossible to
switch from the mode to the mode, and conversely.
Procedures to activate Security mode
1. Exit any adjustment mode to manually adjust the set point at
the desired maximum value.
2. Simultaneously press down the + and - buttons during
10 seconds (note that after 3 seconds, the icon starts
to blink and the software version and date are displayed.
Continue to press down these buttons).
3. After 10 seconds, the icon is displayed indicating that the
Security mode is activated. Then, release the buttons.
Procedures to deactivate Security mode
1. To deactivate the Security mode, cut off the power supply
of the thermostat at the electrical panel and wait at least
30 seconds.

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2. Restore the power supply to the thermostat. The icon will
blink during a maximum of 5 minutes, indicating that you can
deactivate the Security mode.
3. Simultaneously press down the + and - buttons for more
than 10 seconds. The icon will then be hidden indicating
that the Security mode is deactivated.
Parameter Backup and Power Failures
The thermostat saves some parameters in its nonvolatile
memory in order to recovered them when power is restored
(e.g. after a power failure). These parameters are the current
Man/Auto/Pre-Prog mode, the hour and the day of the week,
the Auto mode programming (either from the or mode),
the maximum oor temperature (28°C), the last selected
programming of the Pre-Prog mode, the /mode, the
Celsius/Fahrenheit mode, the last effective set point, the
Security mode and the maximum lock set point.
As mentioned above, the thermostat can detect a power failure.
In such a case, the adjustments described are automatically
saved in the volatile memory and recovered when power is
restored. Then, the thermostat enters a very low consumption
mode and only displays the hour and day of the week. All the
other functions are deactivated.
The thermostat is self-sufcient for 2 hours. If the power failure
lasts less than 2 hours, the thermostat saves the adjustment of
the hour. However, when power is restored after an extensive
failure (more than 2 hours), it recovers the last mode (Man/Auto/
Pre-Prog) as well as the various adjustments that were effective
when the failure occurred (either from the or the mode).
The hour and the day of the week are also recovered, but you
must update them. The set point will be the same as what was
active when the failure occurred.
N.B. During the rst half hour of the failure, the hour and day of
the week are displayed. After half an hour, the screen turns
off in order to ensure energy saving.

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PROBLEM DEFECTIVE PART
OR PART TO CHECK
The thermostat is hot.
• In normal operating conditions, the
thermostat housing can reach nearly
40°C at maximum load. It is normal
and will not affect the 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 and make sure the red
indicator is not lit. 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.
The red indicator lights up
frequently. • Contact customer service.
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**
or E3***.
• Faulty thermal sensor. Contact customer
service.
The display indicates E4****. • Faulty ground-fault circuit interrupter.
Contact customer service.
Weak luminosity of the display.
• Possibility of a bad contact. Check
thermostat wirings. Refer to the
installation section.
* E1: Faulty ambient exterior sensor (open circuit) - written in the ambient section
** E2: Faulty interior sensor (open circuit) - written in the ambient section
*** E3: Faulty oor sensor (open circuit) - written in the oor section
**** E4: Faulty ground-fault circuit interrupter (GFCI)
N.B. If you do not solve the problem after checking these points, cut off the
power supply at the main electrical panel and contact customer service
(consult our Web site to obtain the phone numbers).
TROUBLESHOOTING