Increasing/Decreasing the Temperature
By default, the thermostat displays the CURRENT temperature. Press the Up/Down buttons ONCE to activate the backlight. Press the Up/Down buttons again to adjust the TARGET temperature be-tween 41 to 104° F (5 to 40°C). The screen will display the TARGET temperature for ten seconds.
Setting the Time
Changing the Temperature Unit
Changing the Temperature Control Setting
Temperature Control Setting | Description |
Floor (Default) | The floor sensor controls the heating. Floor protection is active. Limits as in Floor/Room. |
Room | The built-in sensor controls the heating. Floor protection is NOT active. This setting is useful if the temperature sensor in the floor is damaged or none is installed. |
Floor/Room | The built-in sensor controls the heating and the floor sensor limits the floor temperature to 104°F/40°C for Tile or 82°F/28°C for Laminate. |
Changing the Floor Type (not selectable if the Temperature Control setting is set to ROOM – refer to ‘Changing Temperature Control Set-ting’ section). Tile is the default floor type.
Monitoring Usage
E02 – This error message indicates a missing or damaged floor sensor. Flashing digits indicate that the measured floor temperature is higher than the limit temperature.
Heating is switched off.
Contact your installer to verify the floor sensor and connections.
Classification
UL Listed for the US and Canada
According to the following standards:
UTN4/ATN4 Quick Guide
Turn power source OFF at breaker panel. Connect power supply wires to line side and heating cable wiring to load side of power base.
AWG between 12 – 20.
Note! Do not detach the screws from the terminal.
When fastening the screws use a torque between 0.8 – 1.2 Nm / 0.6 – 0.9 lbf-ft.
The floor sensor cable must be routed to the junction box separate from power wires and the heating cable cold lead. Ensure that the insulation on the electrical wiring and the floor sensor inside the junction box are not damaged.
Thread the floor sensor cable through the hole in the power base. Push the electrical wires to the back of the electrical box.
Install the power base into the electrical box.
Secure the power base to the wall.
Scan the QR-code for additional information
http://www.ojelectronics.com/UTN4
Make the sensor connections.
The Floor sensor has no polarity. Connect it to terminals C and D.
Checking the GFCI/EGFPD
The red LED on the right of the thermostat can indicate four different GFCI/EGFPD states:
WARNINGS:
To avoid electric shock, disconnect the heating system power supply at the main panel before installation and maintenance of the thermostat. Keep thermostat air vents clean and free from obstruction. This thermostat is an electrical device and must be installed in compliance with national and/or local electrical codes. Installation must be performed by qualified personnel where required by law. If a power module with an equipment ground fault protection device (EGFPD) is to be installed where national and/or local electrical codes require a ground fault circuit interrupter (GFCI), a separate GFCI must also be installed.
For support please contact your installer or retailer.
OJ Electronics A/S
Stenager 13B – DK-6400 Sønderborg
© 2017 OJ Electronics. All rights reserved.
This manual and parts thereof are protected under Danish and international copyright laws.
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