12
12 Keyboard locking (child lock)
– 0 – off; 1 – on
. In the turned on condition a icon will
appear in the display’s right upper corner on the starting screen of the thermostat within
15 seconds after the last intervention (touching of a button) and at the same time the child
lock function will get activated and the device will not react upon touching any button.
The keyboard lock function can be suspended by touching the and buttons simul
-
taneously and keeping them depressed for 5 seconds. In this way this function will only be
broken (with breaks not longer than 15 seconds in the case of a continuous intervention);
the keyboard lock can be resolved by setting point 12 of the factory menu to 0.
13 Inactive
14 Sensing of open window
–
0 – off; 1 – on
. When on, the open window function gets activa
-
ted on the controller which means that upon a temperature drop occurring after a certain
period of time the thermostat, supposing ventilation, will temporarily turn heating off in
order to avoid unnecessary energy consumption. The delay in activating this function, the
extent of temperature drop and the timing of switching heating on again can be set in
menu points 15-16-17.
15 Period of sensing open window (switch-on delay)
– this function will switch on when
the time set here has elapsed. For example, if the numerical value set in this menu is 15,
heating will be turned off when within this 15-minute period the temperature has dropped
with the specified temperature value.
16 Open window temperature drop (within sensing time)
– sensing limit value of the tem-
perature drop. For instance, if the numerical value set in the menu is 2, then within the time
frame set in menu 15 heating will switch off upon a 2°C temperature drop.
17 Open window delay period (returning to normal mode of operation)
– heating will be
switched on again after the time specified here. If the numerical value of the menu is 30, it
means that heating will be switched on again 30 minutes after the temperature drop has
stopped.
An example of how the open window function works: the set values are: menu point 14 (1);
menu point 15 (15); menu point 16 (2); menu point 17 (30). Based on the settings the open
window function is active; in case of a temperature drop of 2°C occurring within 15 minu-
tes the thermostat switches the heating off, and in 30 minutes after the temperature drop
has ceased heating will be switched on again.
18 Cooling back limit after overheating
– a function that can be used with surface heating,
in which heating will switch on when the temperature difference set here has been rea-
ched, having previously reached the surface’s maximum value. For example, if the maxi-
mum surface value (menu point 7) is 29°C, the value set in menu 18 is 2°C, then heating will
switch on again when the floor’s surface temperature has cooled back to 27°C.
19 Calibrating the external sensor
– a function used with surface heating and based on the
signed difference between the temperature measured by the surface sensor and the real
temperature of the surface. For example, if in menu point 06 the thermostat shows +28°C,
while the real temperature of the surface is 25°C, then menu point 19 should be set to -3°C.
20 Optimisation of energy consumption
–
1: electric radiator
. Set it to this value if the hea
-
ting controlled by the thermostat is an independent convection-type electric heating pro-
vided with built-in temperature controller (radiator).
2: infrapanel
. Set it to this value if the
heating controlled by the thermostat is an independent radiation heating provided with
built-in surface temperature controller (infrapanel).
3: ceiling heating
. Set it to this value if
the heating controlled by the thermostat is an electric radiation ceiling surface heating.
4:
underfloor heating
. Set it to this value if the heating controlled by the thermostat is a low
surface temperature electric underfloor heating.