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Operation instructions
2.2.6 Installation menu
The thermostat has a special Installer Mode where some
features can be adjusted. Each adjustable feature is called a
Parameter.
Activation of the installation menu
To enter Installer mode:
1 Put thermostat into off/standby mode by pressing and
holding the off/standby button for 2 seconds.
2 Press and hold both ▲and ▼ temperature adjustment
buttons for 3 seconds, until the display shows the word
"Inst".
3 Press the ▲ button to get to the first parameter "Ot". The
parameter code is shown on the display separated by a
colon from the parameter value.
1.
To select and change parameter:
1 Use ▲and ▼ buttons to move from one parameter to
another.
2 Press the off/standby button to select the parameter value,
ready to change.
3 Use ▲and ▼buttons to adjust the parameter value. When
the correct value is flashing, confirm the selection by
pressing the off/standby button again, returning to the
parameter menu.
To exit Installer mode:
1 Press and hold the off/standby button for 3 seconds.
The installation menu is closed automatically after 10 seconds
of inactivity.
Parameters of the installation menu
Each parameter is identified by a 2-letter code, and has a range
of values.
Parameter
Description
Reserved
Ot
Reserved
Cr
Reserved
Pb
Temperature measurement
tO
offset
Reserved
uL
Reserved
LL
Reserved
HC
Off/standby setpoint
OS
Reserved
Su
Reserved
LC
6
PMML0582 rev.1 - 12/2021
2.
3.
Range of
Factory
values
default
-
-
-
-3 to 3 (ºC)
0 (ºC)
-
-
-
-- = off
5 (ºC)
5 to 16 (ºC)
-
-
Parameter
H0
HL
Reset parameters
FS
2.2.7 Reset to default
Follow the sequence of steps below to reset the stored binding
data in the room thermostat.
1 Put thermostat into off/standby mode by pressing and
holding the off/standby button for 2 seconds.
2 Press and hold both ▲and ▼ temperature adjustment
buttons for 3 seconds, until the display shows the word
"Inst".
3 Put thermostat into heating demand mode by pressing once
▼ button. Display will show the word "COnt".
4 Press ▲ button 3 times, screen will show the word "CLr".
5 Reset the thermostat by pressing the off/standby button.
1.
2.2.8 Replacement of the batteries
Room thermostat is battery powered by 2 x AA alkaline cells
giving up to 4 years battery life (minimum 2 years), with battery
low warning.
To replace the batteries remove the thermostat panel and place
them as showed below.
1.
-
-
-
-
-
-
-
-
Range of
Description
values
Reserved
-
Reserved
-
0 = disable
1 = enable
2.
4.
5.
2.
Factory
default
-
-
1
3.
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