43
This operation causes the deletion of any customized
programmes, which will be restored along with other
data by following the instructions set forth from chapter
3 on.
1
2
L
87
85
86
22
-
BATTERY REPLACEMENT
When the indicator flashes on the display, it means
you have about 1 month to replace the batteries (fig. 85)
When the
indication plus the symbol appear on
the display, the unit is no longer operative and has set the
heating and air-conditioning system to OFF (fig. 86).
ATTENTION. Failure to replace the batteries in time may
cause damage to the heating system (anti-freeze protec-
tion is not ensured).
To replace the batteries, proceed as follows:
22.1-
Extract the tab
L
and the body of the unit from the
frame by sliding it until it stops (fig. 87). Then, press on the
two side tabs and extract it completely (fig. 88).
TH350 EN 05_08.indd 43
TH350 EN 05_08.indd 43
30-05-2008 8:20:58
30-05-2008 8:20:58
