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5. Press buttons
and
to change the value (only if pa-
rameter P8 is set to 1).
3.10 OT - Type of communication protocol Open
Therm
Parameter reserved for qualified person.
Parameter setting:
1. Push the button
for 3 seconds until CU is showed.
2. Push the button
11 times to switch on OT.
3. Press buttons
and to change the value:
0 = Standard
1 = OEM
2 = B&P.
3.11 FS - Nax heating setting and DHW setting
Enabling/disabling the reading of the heating and DHW set-
point.
Note: default is 0 = reading and writing.
Parameter setting:
1. Press the button
for 3 seconds until CU is showed.
2. Push the button 12 times to switch on FS.
3. Press buttons
and to change the value:
0 = reading and writing
1 = only writing.
3.12 D1 - CONTRAST
Only for versions with backlight.
To change the display contrast.
Parameter setting:
1. Press the button
for 3 seconds until CU is showed.
2. Push the button
13 times to switch on D1.
3. Press buttons
and to adjust the contrast.
3.13 D2 - Lighting duration
Only for versions with backlight.
To change the backlight duration.
Parameter setting:
1. Press the button
for 3 seconds until CU is showed.
2. Push the button
14 times to switch on D2.
3. Press buttons
and
to modify its duration in seconds.
4
KEY LOCK FUNCTION
From unlocked keypad it is possible to activate the lock by
pressing the two buttons
3 seconds. When the lock is activated, "LK" will appear briefly.
From this moment the keypad will be locked and at each ac-
tion "LK" will be shown to indicate keypad lock in progress.
To unlock the keypad press the two buttons
and
simultaneously for about
and
simul-
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