Vimar 2950, Instruction Manual

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7.4.2 Away temperature
The menu, via and lets you increase/decrease the value of the away temper-
ature .
The away temperature, preset by the installer, is an intermediate temperature between that of
Manual and Antifreeze mode, geared to obtain substantial energy savings during periods when
the user is away.
The away temperature differs depending on whether you are in heating mode (in which T.away is
less than Tcomfort) or air-conditioning mode (in which T.away is greater than Tcomfort).
Example: While the user is away, the thermostat sets the ambient temperature to 16°C.
7.4.3 Antifreeze temperature
The menu, via and , lets you increase/decrease the value of the antifreeze
temperature .
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 (see par. 6.5).
7.4.4 Nighttime reduction thermal delta
The menu, via and , lets you set the difference between the Nighttime reduction
temperature and Tcomfort temperature (or the temperature set in Manual mode).
The hysteresis is an increase/decrease in temperature that is applied to the Manual setting (when
nighttime reduction is activated by the display) or to Tcomfort (when nighttime reduction is acti-
vated by the multi-function input); the thermal delta value is identical both in heating mode and in
air-conditioning mode with the only difference being that in the former case it causes a decrease
in the set point while in the latter one it determines an increase.
The nighttime reduction mode can be activated either locally or via the multi-function input (if
configured appropriately - see par. 6.4).
7.4.5 User settable thermal delta
The menu, via and , lets you set the range of values within which the user can
adjust the temperature when the menus are inhibited following remote activation or entering the
PIN.
When the thermostat is turned on remotely (via the multi-function input when suitably configured),
the control temperature is fixed and therefore cannot be changed; with
instead, the user can
modify the temperature within a certain range.
For example: multi-function input set as remote activation, T. comfort set at 20.0°C. Setting the
thermal delta to 0.8°C allows the user to change the temperature setting from 19.2°C (20.0°C -
0.8°C) to 20.8 (20.0°C + 0.8°C).
7.4.6 Hysteresis of the device
The menu, via and , lets you set the temperature range of the heating/air-condi-
tioning system between "ON" and "OFF".
This value can also be changed via the submenu for ON/OFF operation (see par. 7.8).
The parameter cannot be changed if the thermostat is set as PID operation
For example: Heating, with setpoint on 20.0°C, : 0.5°C
  
20.5 (off), 19.9 (on)