BN Thermic U16c User Manual

BN
Description
The U16c programmable thermostat provides the following tem-
perature control modes:
A mode: controls and displays the ambient air temperature
F mode: controls and displays the floor temperature using
an external temperature sensor (default mode)
AF mode: controls and displays the ambient air temperature
maintains the floor temperature within desired
limits using an external temperature sensor
Day and
time setting
Schedule
programming
Clear
Mode selection /
Exit
* Use this button to disable heating (e.g. in the summer). The thermostat remains
powered and continues to display the time and temperature.
Appears when the
setpoint temperature
is displayed
Manual mode
Automatic mode
Amount of heating *
Periods
* The thermostat displays the amount of heating required to maintain the desired
temperature. For example, is displayed when heating is at 40 percent.
Display
% of heating 1 to 24% 25 to 49% 50 to 74% 75 to 99%
Temperature
presets
On/Off button *
Temperature
adjustment
Display
Time
Day
Temperature
Preset temperature
indicators
Mode indicator (A, F or AF)
Appears when
heating is disabled
1.
Faceplate Installation
Refer to the installation guide of the power base.
Insert the tabs at the top of the faceplate in the slots at the top of
the power base.
Secure the faceplate using the captive screw underneath the
base.
Faceplate
(control module)
NOTE: Keep the thermostat's air vents clean and unobstructed at all
times.
Power Up
Apply power to the thermostat at the main electrical panel. At
power-up, the thermostat is in manual mode
actual (measured) temperature. The setpoint temperature is 28 °C
(82 °F).

Error Messages

LO The actual temperature is below 0 °C (32 °F).
HI The actual temperature is above 70 °C (158 °F).
Er The thermostat built-in sensor is defective. Replace the
thermostat.
E1 The floor sensor circuit is opened. Check the sensor
connections.
E2 The floor sensor circuit is shorted. Replace the sensor.
Configuration
5.1 Control Mode Selection
Press and hold the Clear button for 3 seconds. The current con-
trol mode is displayed
Press the
NOTE: If you have chosen the A or F mode, go to step 7. If you have chosen
the AF mode, the thermostat will control the ambient temperature while keeping
the floor temperature within desired limits. If the floor temperature is too low or
too high, the thermostat will turn heating on or off to maintain the floor tempera-
100%
ture within the limits regardless of the ambient temperature. The minimum and
maximum floor temperature limits are factory-set at 5 °C (41 °F) and 28 °C
(82 °F) respectively. To modify the limits, continue with the next step:
Press the Clear button briefly. The minimum limit is displayed (FL:LO).
Press the

Programmable Thermostat

Power base
.
(ctl)
to select between A, AF and F.
button to set the minimum limit.
U16c

User Guide

2.
3.
and displays the
4.
5.