TH232-AF-230
400-232-003-B 2010-05-26 2/4
This thermostat provides the following temperature control modes:
Display
Apply power to the thermostat at the main electrical panel. At
power-up, the thermostat is in manual mode and displays the
actual (measured) temperature. The setpoint temperature is 28 °C
(82 °F).
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.
4.1
Control Mode Selection
n
Press and hold the
Clear
button for 3 seconds. The current con-
trol mode is displayed
(
ctl
)
.
o
Press the
to select between
A
,
AF
and
F
.
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 tempera-
ture 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 temperature within the limits regardless
of the ambient temperature. The minimum and maximum floor temper-
ature limits are factory-set at 5 °C (41 °F) and 28 °C (82 °F) respec-
tively. To modify the limits, continue with the next step:
p
Press the
Clear
button briefly. The minimum limit is displayed (
FL:LO
).
q
Press the
button to set the minimum limit.
r
Press the
Clear
button briefly. The maximum limit is displayed (
FL:HI
).
s
Press the
buttons to set the maximum limit.
t
Press the
Mode/Return
button to exit and save the changes.
NOTE: If no button is pressed for 60 seconds, the thermostat will
save the changes and return to normal display.
4.2
Other Configurations
This procedure allows you to choose the following configurations:
n
Press and hold the
Pgm
button for 3 seconds. The current tem-
perature unit is displayed (
unit
).
o
Press the
to toggle between
°C
and
°F
.
p
Press the
Pgm
button briefly. The current time format is dis-
played (
Hr
).
q
Press the
to toggle between
24H
and
12H
.
r
Press the
Pgm
button briefly. The current Early Start setting is
displayed (
ES
).
s
Press the
to toggle between
OFF
and
On
.
t
Press the
Mode/Return
button to exit and save the changes.
n
Description
1.
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
o
Power Up
2.
p
Error Messages
3.
Day and
time setting
Schedule
programming
Mode selection /
Exit
Clear
Temperature
adjustment
Temperature
presets
On/Off button *
* Use this button to disable heating (e.g. in the summer). The
thermostat remains powered and continues to display the time
and temperature.
Time
Day
Temperature
Periods
Heating intensity
indicator
Automatic mode
Appears when the
setpoint temperature
is displayed
Appears when
heating is disabled
Mode indicator (A, F or AF)
Preset temperature
indicators
Manual mode
q
q
Configuration
4.
Parameters
Default settings
Temperature format
°C
Time format
24H
Early Start setting (see the note below)
On
TH232-AF-230
Operating Instructions
Programmable Thermostat
