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appropriate setting. In the case of two-pipe systems, when the
thermostat gives a heating/cooling command, the 230 V mains
voltage is displayed on both Valve1 and Valve2 outputs. In the
case of four-pipe systems, in heating mode, only the Valve1
output is switched on in the event of a heating command, while
Valve2 is continuously switched off. In cooling mode, only the
Valve2 switches on in the event of a cooling command, while
Valve1 is continuously switched off.
10.9. Restoring default setting (FAC)
All settings of the thermostat, except for date and time, will
be restored to factory setting. To restore factory setting, after
selecting
FAC
setting option and tapping the button several
times, switch over the appearing
08
setting to
00
. Then tap
the
button once to restore factory setting.
If you move on by tapping the
button and leaving the
FAC
value at its default value (08) then the device will not return to
default setting but save the settings and exits the operation-
related settings menu.
