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c OPERATING MODE SELECTION:
Cooling Heating
Automatic OFF Disables controller
d FAN OPERATION
Show continuous fan operation.
e OUTDOOR TEMPERATURE DISPLAY (With op-
tional sensor).
f DAY/NIGHT BUTTON
Day temperature, Night temperature.
g LOWER and h RAISE the setpoints.
USER'S SETTING POSSIBILITIES
COOLING - Select the mode with button c, cooling
symbol is blinking. Adjust the temperature with but-
tons g and h. Temperature setpoint display will blink
for 5 seconds. If this temperature is below the effec-
tive room temperature the compressor will start after
a time delay (or for two compressors models, if neces-
sary the second compressor will be energized after the
first one).
HEATING - Select the mode with button c, heating
symbol is blinking. Adjust the temperature with but-
tons g and h. Temperature setpoint display will blink
for 5 seconds.
Cooling systems with auxiliary heater: If this tem-
perature is above the effective room temperature the
contactor will energize the heating element. Then, if
necessary the second stage is also energized.
Heat pump systems: If this temperature is above the
effective room temperature the compressor will oper-
ate after a time delay (or for two compressors models,
if necessary the second compressor will be energized
after the first one). If necessary, as a second step (one
compressor models) or third step (two compressors
models) the auxiliary heater (electric or hot water) is
activated.
AUTO CHANGEOVER MODE - The thermostat will
automatically switch from cooling or heating mode
based on the temperature established for both modes.
FAN - Button d will select the automatic mode (fan
will operate when the system is activated in cooling or
heating mode) or continuous (not depending on the
system operation).
OFF MODE - To turn off the cooling or heating sys-
tem press the button c until the word "OFF" appears
on the LCD. Fan operation is still possible in this mode.
OUTDOOR TEMPERATURE - If an outdoor remote
sensor has been installed, outdoor temperature can be
displayed by pressing the button e.
DAY/NIGHT BUTTON - By pressing the button f it
is possible to select a second (alternate or night) set-
ting temperature. The thermostat can be alternated
between the two temperatures setpoints manually or
automatically, using any relay-based controller or clock
timer (not supplied).
CELSIUS / FAHRENHEIT - Simultaneously press g
and h to switch between Celsius (°C) and Fahrenheit
(°F) display.
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