Bpt TH 345 - Page 29

GB
29
T3
T2
T1
ON
048121620
LU MA ME GI VE SA DO
1
L
2
Fig. 76
048121620
T3
T2
T1
123
4
567
ON
Fig. 75
month to replace the batteries
before the unit stops working.
When the message stays on
permanently on the display, the unit
is no longer working and has turned
the air conditioning system to OFF.
ATTENTION. Failure to replace
the batteries in a timely manner
may cause damage to the heating
system (it is no longer protected
by antifreeze).
To replace the batteries, proceed
as follows:
16.1 - Draw the tab L out and
remove the body of the thermostat
from the housing, sliding it out
until it stops, figure 76, and then
pressing the two side wings to
detach it completely, figure 77.
The indications on the display dis-
appear.
16.2 - Insert three new LR03 type
AAA 1.5 V batteries according to
the polarity indicated on the bot-
tom of the battery housing, figure
78.
After a few seconds, the indications
reappear on the display.
If the messages on the display do
not appear within 30 seconds,
T3
T2
T1
ON
048121620
LU MA ME GI VE SA DO
3
4
3
Fig. 77
T3
T2
T1
048121620
123
4
567
ON
Fig. 74
T3
T2
T1
0
4
8
12
16
20
LU MA
Fig. 78
TH345.01 ITF 24078822 04_06 11-07-2007 8:21 Pagina 29