Stelpro STCP User manual
INSSTCP1010
“STCP”
Heating Floor Programmable
Electronic Thermostat
User’s Guide
www.stelpro.com
For further information or to consult this guide online,
please visit our Web site.
INSSTCP1010
1.Description
The STCP electronic thermostat can be used to control heating
floors 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 floor ( 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 floor at any time and when the
temperature of the ambient air can be high without causing dis-
comfort. For example, in a bathroom.
WARNING WARNING
Before installing and operating this product, the
owner and/or installer must read, understand and fol-
low these instructions and keep them handy for fu-
ture 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 poten-
tially fatal electric shocks. All electric connections
must be made by a qualified electrician, according to
the electrical and building codes effective in your re-
gion. Do NOT connect this product to a supply source
other than 120 VAC, 208 VAC or 240 VAC, and do not
exceed the specified 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 fluid to clean thermostat
air vents. Do NOT use where exposed to water. Suitable
for insulated walls.
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INSSTCP1010
Ambient Mode (you only have to press down the A/F but-
ton to switch from one mode to the other): this control method
is ideal when you want a stable ambient air temperature (without
fluctuation). Usually, this mode is used in large and often occu-
pied 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 tem-
perature) and other heat sources such as a central heating sys-
tem, a fireplace, etc. In all these cases, the mode will ensure
a uniform temperature.
This Thermostat is not Compatible with the Following
Installations:
•electricalcurrenthigherthan16Awitharesistiveload(3840W
@240VAC,3475W@208VACand1920W@120VAC);
•inductiveload(presenceofacontactororrelay);and
•centralheatingsystem.
Parts Supplied:
•one(1)thermostat;
•two(2)mountingscrews;
•four(4)solderlessconnectorssuitableforcopperwires;
•one(1)oorsensor.
2. Installation
Selection of Thermostat and Sensor Location
The thermostat must be mounted on a connection box, at
around1.5m(5feet)abovetheoorlevel,onasectionofthe
wall exempt from pipes or air ducts.
Do not install the thermostat in a location where tempera-
ture measurements could be altered. For example:
•closetoawindow,onanexternalwall,orclosetoadoorlead-
ingoutside;
•exposeddirectlytothelightorheatoftheSun,alamp,are-
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INSSTCP1010
placeoranyotherheatsource;
• closeorinfrontofanairoutlet;
•closetoconcealedductsorachimney;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 heat-
ing floor.
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
ofanyobstruction;
3.Usingascrewdriver,loosenthescrewretainingthemounting
base and front part of the thermostat. Remove the front part of
thethermostatfromthemountingbasebytiltingitupward;
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INSSTCP1010
4. Align and secure the mounting base to the connection box
usingthetwoscrewssupplied;
5.Route wires coming from the wall through the hole of the
mounting base and make the required connections using the
“Four-wire installation” figure, and using the supplied solder-
less 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 con-
nections with aluminum wires, you must use CO/ALR connec-
tors. Please note that thermostat wires do not have polarity,
meaning that any wire can be connected to the other. Then,
installtheoortemperaturesensor;
Four-wire installation
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INSSTCP1010
6. Reinstall the front part of the thermostat on the mounting base
andtightenthescrewatthebottomoftheunit;
7.Turnonthepower;
8. Set the thermostat to the desired setting (see the following
section).
3. Operation
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INSSTCP1010
First Start-up
At the first 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 floor temperature is limited
to 28°C.
Ambient and Floor Temperature
The figures displayed below the icon indicate the ambi-
ent temperature, ±1 degree. The figures displayed below the
icon indicate the floor temperature, ±1 degree. Both tem-
peratures can be displayed in degrees Celsius or Fahrenheit (see
“Display in degrees Celsius/Fahrenheit”).
Temperature Set Points
The figures displayed beside the icon indicate the ambient
() or the floor ( ) temperature set points. They can be dis-
played in degrees Celsius or Fahrenheit (see “Display in degrees
Celsius/Fahrenheit”).
Out of any adjustment mode, press down the + button to in-
crease 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 floor 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
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INSSTCP1010
confirm 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 confirm your choice
using the Mode or Day/Hr button.
3.Thetwoguresindicatingthehourblink.Youmustadjustthem
using the + or - button and confirm your choice by pressing
down the Mode or Day/Hr button.
4.The two figures indicating the minutes blink. You must adjust
them using the + or - button and confirm your choice by press-
ing down the Mode or Day/Hr button. The adjustment is then
completed and the thermostat returns to the previous mode.
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-sufficient 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 - but-
tonsformorethan3secondsuntilthe 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.Whentheadjustmentiscompleted,pressdowntheExitbut-
tonordonotpressdownanybuttonduring5secondstoexit
the adjustment function.
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INSSTCP1010
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 but-
tons for the first time instead, the backlight will be activated. To
quickly scroll through the set point values, press and hold down
the button. From mode,thesetpointscanrangebetween3
and35°Candcanonlybeadjustedbyincrementsof1°C(from
37 to 95°F; by increments of 1°F from the Fahrenheit mode).
From mode,thesetpointscanrangebetween3and28°C
(from 37 to 82°F). The thermostat will turn off if the set point
isloweredbelow3°C(37°F),andthesetpointvaluedisplayed
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
first 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 se-
lected 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
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INSSTCP1010
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
periodnumber(1to4;asapplicable).
After programming a day of the week, you can copy this setting;
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 us-
ing 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 confirm
the period by pressing down the Mode button.
3.Thetwoguresrepresentingthehourblinktoindicatethatyou
canadjustthem(from00to23)usingthe+or–button.Youmust
confirm the adjustment by pressing down the Mode button.
4. After confirmation, the figures representing the minutes (the
last 2 figures) blink. You can adjust and confirm them in the
mannerdescribedinpoint3.Notethattheminutescanonly
beadjustedbyincrementsof15minutes.
5.The period set point blinks and you can adjust it using the
+ or - button. You must confirm the adjustment by pressing
down the Mode button.
6.After set point confirmation, the programming is completed.
The following period number blinks. For example, if the previ-
ously programmed period was 1, period 2 blinks. It is then
possible to continue the programming of this period by press-
ing down the Mode button. You can also select another period
usingthe+or–button.
7.Attheendofperiod4programming,youautomaticallyexitthe
Programming mode.
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INSSTCP1010
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.
2-Press down the button of another day to program it.
3-PressdowntheExitbutton.
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 tempera-
ture at the programmed hour by starting or stopping the heat-
ing before this time. In fact, the thermostat estimates the delay
required to reach the set point of the next period at the pro-
grammed hour. This delay is obtained by the observation of the
temperature variations in the room and the results obtained dur-
ing the preceding anticipated starts. Therefore, results should
be increasingly precise day after day. From this mode, the ther-
mostat displays at any time the set point ( ) of the current pe-
riod. 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 ( )willindicate18°Cuntil7h59amandwillswitch
to 22°C at 8h00am. Thus, you will not see the progression car-
ried 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 modification 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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INSSTCP1010
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.Afterallselectionsarecompleted,releasethesourcedaybut-
ton. 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.Holddownthesetwobuttonsfor3seconds.Afterthistime,
the days of the block are displayed indicating that the copy in
block is activated.
3.Releasethebuttons.Thedaysoftheblockarenotdisplayed
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.
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INSSTCP1010
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 confirm the
selection. However, doing so will not impact on the erasing.
3.Simultaneouslypressdownthe+and–buttonstoerasethe
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
oneofthe3methodsdescribedabove.
Preprogrammed Mode
The Preprogrammed mode allows an automatic programming
of the thermostat. 252 preprogrammings have been dened for
modeand252,for mode(A0toZ1and0to9;seeappen-
dix 1 to consult the corresponding tables). This mode gives you the
possibility to quickly program the thermostat using preprogram-
mings commonly used without having to do it manually.
As from the Automatic mode, it is possible, at any time, to manu-
ally 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
andcurrentnumberofthepreprogramming(A0toZ1and0to9;
alpha-numeric segment displayed on the right-hand side of the
hour;seeappendix1).
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INSSTCP1010
Choice of the Preprogramming
You can only access the Preprogramming mode when the ther-
mostat 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.
2.The Pre Prog icon and saved selected preprogramming are
displayed. This preprogramming can range between 0 and
Z1.
3.FromthePreProgmode,youcanchoosetherst10preprogram-
mings by pressing and releasing the Pre Prog button. Each time you
pressdownthebutton,thepreprogrammingswitches(from0to9).
4.To choose advanced preprogrammings, (see appendix 1), press
downthePreProgbuttonduring5seconds.Theletterindicator
blinks and you can adjust it by pressing down the + or - but-
ton. Once the letter is chosen, you must validate your choice by
pressing down the Mode button. The letter ceases to blink and
the figure starts to blink. The choice of the figure is made in the
same way as that of the letter (using the + or - button). Once
the figure 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 min-
ute 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 figure corresponding to the selected
preprogramming blink alternately until you select another prepro-
gramming. 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.
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INSSTCP1010
View of the Preprogramming
The view of the selected preprogramming is made in a way simi-
lar 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 (but-
tons Mon to Sun). When the selected day is displayed, the
icon and period number blink.
2.Choose the period number (1 to 2) to view using the + or - but-
ton. 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-PressdowntheExitbutton.
If you do not press down any button during 1 minute, the ther-
mostat 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). Then, the temperature set point will become the same
as the or mode temperature, as applicable. However,
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 floor sensor, it
will automatically revert to mode at a set point of 21°C. (with
a maximum set point temperature of 24°C.) 15
INSSTCP1010
Sensor Selection
If you want to use the STCP thermostat of Stelpro Design with
a temperature sensor already installed in the floor (other than
the sensor supplied with this thermostat), you must contact the
Stelpro Design customer service to validate the compatibility
between the sensor and the thermostat. You must know the
serial number and name of the installed sensor.
Temperature Control
The thermostat controls the floor/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
notpressdownanybuttonformorethan15seconds,thescreen
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
detectaleakagecurrentof5mA.Ifadefectisdetected,theGFCI
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.
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INSSTCP1010
Ground-fault Circuit Interrupter (GFCI) Verification
It is important to verify the ground-fault circuit interrupter instal-
lation 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-Thefollowingtwocasescanoccur:
a) Successful test: The red indicator of the thermostat lights
up. In this case, press down once again the Test button to
reinitialize the ground-fault circuit interrupter, the red indi-
cator turns off.
b) Failed test: The red indicator does not light up and the
entire display blinks during 5 seconds. In this case, dis-
connect the heating system at the electrical panel and call
Stelpro’s customer service.
Lock Option
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 discre-
tion. The programming of the Auto and Pre-Prog modes also
respects this maximum temperature set point. Please note that
when the lock option is activated, it is impossible to switch from
the mode to the mode, and conversely.
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INSSTCP1010
Lock Activation
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 sec-
onds(notethatafter3seconds,the icon starts to blink and
the software version and date are displayed. Continue to press
down these buttons).
3.After10seconds,theLockiconisdisplayedindicatingthatthe
Lock option is activated. Then, release the buttons.
Lock Deactivation
1.To deactivate the lock option, cut off the power supply of the
thermostat at the electrical panel and wait at least 30 sec-
onds.
2.Restore the power supply to the thermostat. The Lock icon will
blinkduringamaximumof5minutes,indicatingthatyoucan
deactivate the Lock option.
3.Simultaneouslypressdownthe+and-buttonsformorethan
10 seconds. The Lock icon will then be hidden indicating that
the lock option is deactivated.
Parameter Backup and Power Failures
The thermostat saves some parameters in its nonvolatile memo-
ry 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 maxi-
mum floor temperature (28°C), the last selected programming of
the Pre-Prog mode, the /mode, the Celsius/Fahrenheit
mode, the last effective set point, the Lock mode and the maxi-
mum lock set point.
As mentioned above, the thermostat can detect a power failure. In
such a case, the adjustments described are automatically saved
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INSSTCP1010
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-sufficient 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 first 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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INSSTCP1010
4. Troubleshooting
Problem Solution
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**
orE3***.
Faulty thermal sensor. 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:Faultyoorsensor(opencircuit)-writtenintheoorsection
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).
20
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