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PS120/240NP
Installation Guide
Non-programmable floor heating
thermostat (3600 W)
Increasing or lowering the temperature
To adjust the temperature, press
or
. The requested temperature
will blink to confirm the new setpoint.
Placing the thermostat on standby
Press and hold the
and
buttons simultaneously for 3 seconds to place
the thermostat on standby. The LCD display will not be blank: the
will be displayed.
When the thermostat is on standby, press any button to turn back ON the
thermostat. The thermostat will resume operation under its last program
settings.
A thermostat that is placed on standby before a power failure will be on
standby by default when power is restored.
USER SETTINGS
Get the setpoint to its minimum and hold the
button for 10 seconds to access the menu.
Press the
or
button to change
the setting.
Press the
and
buttons simultaneously
to save and go to the next parameter.
Continue to press until the end of the list to
exit the menu.
CONNECT THE AUXILIARY OUTPUT
Second heating stage (15 sec / 15 min functions)
Transformer
24 VAC
Baseboard
Convector
GROUND FAULT PROTECTION
The thermostat is equipped with a ground fault protection that can detect a
current leakage of 5 mA. When a current leakage is detected, the ground fault
protection is triggered and quickly interrupts the power supply to prevent any
serious injuries.
Resetting the ground fault protection
The RESET button warning light turns ON (red) when the ground fault protection
is triggered. If the RESET button warning light turns ON during normal operation
of the thermostat, simply press the RESET button to reset the ground fault
protection. The light will turn OFF. If for any reason this situation occurs again, cut
the power to the heating system from the main electrical panel and ask a
qualified electrician to verify the installation.
Warnings
The installation of this thermostat should be made by a
certified electrician and must be installed in conformity
with the national and local Electrical Codes.
1
Unlock and lift the thermostat cover.
Connect the heating floor by using the wire connectors load /
2
line located on the back of the thermostat. Connect the ground
wire to the screw in the electrical box intended for this purpose.
Make sure to firmly tighten the wire connectors for a secure connection.
A loose connection can be a fire hazard.
1
USER SETTINGS
Name
Display
symbol
Backlight
Control
Setpoint Min
Setpoint Max
Limit Air Max
Limit Floor Max
Limit Floor Min
10 sec.
Sensor
Aux
OFF, EXP, 15 sec, 15 min (default: OFF)
Testing the ground fault protection
This thermostat has an Auto Test which periodically verifies the correct operation
of the protection circuit. You can also do this manually:
1) Press the TEST button. If the RESET button's, red warning light does not turn ON,
the test has failed. Cut the power to the heating system from the main electrical
panel and ask a qualified electrician to verify the installation.
2) Press the RESET button to restart the thermostat's base.
TROUBLESHOOTING GUIDE
What should I do if the E1F code appears on my thermostat display?
The E1F code means that the thermostat is in "Floor" mode and there is no
connected sensor. If your thermostat is not intended to control an heated floor,
change the thermostat's control mode for the "A mode".
INSTALL YOUR THERMOSTAT
2
Load
Floor heating
Line
4
Parameters & settings
Display
Temperature format
°C or °F (default: °C)
Backlight control
ON or OFF (default: OFF)
Control mode
A (Air), F (Floor) (default: F)
Minimum setpoint
5 °C to 36 °C (default: 5 °C)
Maximum setpoint
5 °C to 36 °C (defautl: 36 °C)
Maximum ambient temperature
(Visible only in F mode)
5 °C to 36 °C (default: OFF)
Maximum floor temperature
(Visible only in A mode)
5 °C to 36 °C (default: OFF)
Minimum floor temperature
(Visible only in A mode)
5 °C to 36 °C (default: OFF)
Floor sensor
10K or 12K (default: 10K)
Assignment of auxiliary output
Before starting the installation of your new
thermostat, please make sure that the breakers for
your heating system are off at the main electrical
panel!
3
Connect the sensor.
(Only for control applications in F mode or with floor limit.)
4
Use the screws to secure the thermostat to the
electrical box.
5
Replace the cover and lock.
6
Power up the thermostat.
After performing a test sequence, the thermostat should
display the floor temperature. If not, refer to the trouble-
shooting guide in this manual.
3
5
6
3) The thermostat offers 2 temperature regulation modes:
F mode (default): Regulates the floor's temperature by means of an external
temperature sensor with the possibility to limit ambient temperature.
A mode: Regulates the ambient temperature with the possibility to limit floor
temperature by means of an external temperature sensor.
6) Maximum ambient temperature limit (F mode)
The thermostat limits floor heating to ensure that the ambient temperature does
not exceed the selected limit.
7) Maximum floor temperature limit (A mode)
The thermostat limits floor heating to the set temperature to ensure it does not
exceed the selected limit. Ideal for protecting engineered wood floors.
10) Assigning the auxiliary output (F mode):
The thermostat provides an auxiliary output that has one function which is set
from the user settings.
EXP function: Auxiliary output to connect several heating floors
Assigning the auxiliary output (A mode):
The thermostat provides an auxiliary output that has three functions which are set
from the user settings.
15 sec function: Short cycle auxiliary output (15 seconds). Used for a heater
controlled through an electronic relay (SSR).
15 min function: Long cycle auxiliary output (15 minutes).
Used for a heater controlled through an electromechanical relay or
equipped with a fan.
In the 15 sec and 15 min functions, the thermostat controls the ambient
temperature with the floor. Once the floor temperature has reached its limit, if
the desired ambient temperature is not reached, the auxiliary output activates
the heating device to reach the set temperature. (The auxiliary output acts as a
second heating stage.)
EXP function: Auxiliary output to connect several heating floors.
TECHNICAL SPECIFICATIONS
Operating voltage: 120/208/240 Vac, 50/60 Hz
Maximum load:
1800 W @ 120 V / 15 A
3120 W @ 208 V / 15 A
3600 W@ 240 V/ 15 A
Setpoint range floor: 5 °C to 36 °C (41 °F to 96 °F)
Setpoint range ambient air: 5 °C to 36 °C (41 °F to 96 °F)
Display range: 0 °C to 50 °C (32 °F to 122 °F)
Resolution: ± 0.5 °C (± 1 °F)
Storage: -20 °C to 50 °C (-4 °F to 122 °F)
Auxiliary output: 24 Vac/Vdc / 0.1 A
GFCI protection: Class A (5mA)
3-year limited warranty
True Comfort Floor Heating Inc. warrants the components of their products
against defects in material and workmanship for a 3-year period from the
date of purchase, under normal use and service, when proof of purchase of
such is provided to the manufacturer. This warranty does not cover any
transportation costs that may be incurred by the consumer. Nor does it cover
a product that has been improperly installed, misused or accidentally
damaged . The obligation of True Comfort Floor Heating Inc. under the terms
of this warranty, will be to supply a new unit and this releases the manufactu-
rer from paying the installation costs or other secondary charges linked to
replacing the unit or the components.
If an error code is displayed, or for more information, contact
True Comfort's Customer Service at 1 877 800-TRUE (8783)
Sensor
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