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4.1 - OPERATING MODE
: Heating mode: blinks if the thermostat detects a heating request.
: Cooling mode: blinks if the thermostat detects a cooling request.
If no heating or cooling request is detected, the two symbols remain lit.
4.2 - "ECO" AND "EXTENDED ABSENCE" FUNCTIONS
• The thermostat can receive orders (issuing from the optional IU-4 communication interface) for the following functions
:
: "Eco" ("Unoccupied"): The thermostat’s temperature setpoints shift to 15°C in heating mode and 29°C in cooling
mode.
NOTE: The normal operating mode ("occupied") is signaled by the symbol.
: "Extended absence" ("Antifreeze"): The thermostat’s heating temperature setpoint shifts to 10°C. Cooling is
inhibited (set at 48°C).
If these temperature setpoints are not appropriate, they may be temporarily modified on the thermostat for a period
of one hour (override).
Simplyadjustthetemperaturesetpoint(s)tothedesiredvalue.The symbolwillappearsignalingtheoverrideperiod.
Upon return to "occupied" mode, the temperature setpoints automatically return to the values that were assigned
prior to the change-over to "Eco" or "Extended absence" mode.
4.3 - KEYPAD LOCKOUT
• This configuration is signaled by the symbol.
All manipulation of keys remains without effect. The thermostat remains in the configuration (temperature setpoints and
operation) it had prior to being locked.
• Consult a technician to unlock the thermostat.
• Press the 0/1 key. The "OFF" message is displayed.
3 - SHUT DOWN
4 - DISPLAY FUNCTIONS
5.1 - POWER SUPPLY INTERRUPTION
• If the power supply is interrupted (even for a long period of time), the thermostat retains its operating conditions (on, off, fan,
temperaturesetpoints)priorto theinterruption inmemory.Whenpowerisrestored, normaloperation willcontinueasbefore.
5.2 - ACCURACY OF TEMPERATURE MEASUREMENTS
• Providedthattheinstallationinstructionshavebeenrespected,completeaccuracyisattainedwhenthethermostatisinstalled
and operational for more than one hour.
5.3 - DISPLAY IN CELSIUS / FAHRENHEIT DEGREES
• Press simultaneously on the and keys to change the unit of temperature.
5.2 - WATER TEMPERATURE CONTROL
• For installations capable of operating with cold and hot water, the system is fitted with a water temperature probe to
automatically check the presence of hot water (if the heating mode is requested) or cold water (if the cooling mode is
requested).
If the temperature of the water circulating in the air conditioner is not correct, its operation is restricted for one hour.
Afterthistime,thesystemteststhewatertemperatureagain.Thisverificationcanbeperformedduringthistimebyperforming
an "On/Off" sequence using the 0/1 key.
5 - MISCELLANEOUS