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7.7.4 External probe alarm temperature
The menu, via
and
, lets you set the temperature limit (read by the exter-
nal probe) at which the timer-thermostat switches off the heating system and triggers an alarm.
To view this menu, the external temperature probe must be set as a "limitation" (see par.
7.12.1).
7.7.5 Hysteresis of the device
The menu, via
and
, lets you set the temperature range of the heating/
air-conditioning system between "ON" and "OFF".
This value can also be changed via the submenu for ON/OFF operation.
The parameter cannot be changed if the timer-thermostat is set as PID operation.
For example: Heating, with setpoint on 20.0°C,
: 0.5°C
20.5 (off), 20.0 (on)
7.7.6 Thermal delta in nighttime reduction mode
The menu, via
and
, lets you set the difference between the remote
reduction temperature and Tcomfort temperature.
The remote reduction mode can only be activated via the multi-function input (if configured
appropriately - see par. 7.10).
The hysteresis is a temperature increase/decrease that is applied to the Tcomfort temperature
when the multifunction input is activated). The value of the thermal delta is identical in both heating
and air conditioning with the only difference being that in the former case it determines a decrease
in the set point while in the latter case it determines an increase.
7.7.7 Antifreeze temperature
The menu, via
and
, lets you increase/decrease the value of the anti-
freeze temperature
or .
Antifreeze mode is used to set a minimum temperature level to avoid damage to the pipework or
keep the room temperature from falling below a safety level.
7.8 Calibration setting
This menu lets you "calibrate" the temperature read by the timer-thermostat.
Using
and
, you can add or subtract (at intervals of 0.1°) a fixed amount from
the temperature detected by the timer-thermostat to make it equal, for example, to that of a sample
thermometer.
CAUTION: For correct calibration it is recommended to wait until the timer-thermostat has been on
for at least 1 hour in a room at constant temperature.
Tap
to confirm your choice.
Summary of Contents for 02955
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