Bticino MyHOME User manual

www.homesystems-legrandgroup.com
User Manual
H/LN4691 - 0 674 59 - 64170
Thermostat with display

Thermostat with display
User Manual
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Contents
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Thermostat with display
User Manual
1 Thermostat with display 4
1.1 Features 4
1.2 Which system do you have? 4
2 Description 5
2.1 Meaning of icons and keys 5
2.2 Summary of functions and operating modes 6
3 Using the thermostat 7
3.1 Master Sensor in MyHOME temperature-control system (with control unit) 7
3.2 Hotel Thermostat 10
3.3 Home Thermostat 14
3.4 Brightness adjustment 18
3.5 Setting the temperature measurement unit 19
4 Maintenance 20
4.1 In case of error 20

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1 Thermostat with display
1.1 Features
The thermostat with display can be used to manage the temperature control system (heating o
cooling) of the rooms where it is installed, and can be configured for different applications based
on needs.
1.2 Which system do you have?
MyHOME temperature system with central unit (par. 3.1)
Master Probe
Thanks to the internal sensor, the thermostat can operate as master probe of a MyHOME system.
In this case, it will obtain the set-points from the central unit that manages the system.
Hotel room system (par. 3.2)
Hotel thermostat
The operation in the hotel room configuration gives the customer the possibility of easily setting
the temperature to the desired level of comfort. The hotel manager can integrate the individual
thermostat installed in the room as part of a system that can be managed using a software for
the monitoring of consumptions, therefore avoiding unwanted energy waste.
Individual residential system (par. 3.3)
Home Thermostat
The third type of use, as room thermostat, manages the temperature control of an individual
system, without the need for additional control devices.

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2 Description
2.1 Meaning of icons and keys
1 - Heating function.
2 - Cooling function.
3 - Operating mode icons (see table in paragraph 2.2).
4 - MODE key: a short pressure changes the mode of operation of the device; an extended pres-
sure (unless used as MyHOME probe) changes the function an extended pressure (unless used
as MyHOME probe) changes the heating/cooling function. (This function can be disabled us-
ing the MyHOME_Suite software for the hotel thermostat and residential thermostat modes).
5 - “+” key: increase the set value.
6 - “–”key: decrease the set value.
7 - FAN key: set the fan coil speed on 3 levels + automatic. (This function can be disabled using
the MyHOME_Suite software).
8 - Heating/cooling on indicator (see table in paragraph 2.2).
9 - Fan coil speed indicator, 3 levels.
10 - Fan coil in automatic mode indicator.
11 - Window indicator: active local contact according to the programming completed by the installer.
12 - Measured (thermometer symbol on) / set (thermometer symbol off) temperature indicator.
13 - Unit of measure: °C or °F measurement unit can be modified from the user menu.
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Heating function
If the measured temperature is lower than the reference value, the heating
system is active and the symbol appears.
Cooling function
If the temperature measured is higher than the reference value, the cooling
system is active and the symbol appears.
Automatic switching function (no icon)
If the temperature exceeds certain thresholds, the heating or the cooling
symbols can be displayed.
( * )
Temporary manual mode (only MyHOME with central unit)
This functions gives the possibility of temporarily switching from a set-point
sent by the central unit to a custom one. The mode remains active until a
new set-point is sent by the central unit.
( * )
Comfort mode
The system operates at the ideal set-point set in the heating and cooling
functions.
( * )
Eco mode
The system operates at the energy saving set-point set in the heating and
cooling functions.
( * )
Antifreeze / Thermal protection / Off
Antifreeze: minimum safety temperature.
Thermal protection: maximum safety temperature.
Off: zone off.
Automatic Mode ( * )
The remote setting (control unit or supervision software) follows.
In the case of MyHome systems, the icons shown with asterisks do not appear
on the display when the corresponding modes are set remotely.
2.2 Summary of functions and operating modes
2 Description
NOTE:
temporary display and/or deactivation
Example: when windows are opened in the controlled zone, system operation is modified or
suspended.
NOTE: some functions, such as switching the heating/cooling, setting the comfort, eco and
antifreeze/heat protection modes and automatic adjustment of the fan-coil fan may have been
disabled by your installer when configuring.

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3 Using the thermostat
3.1 Master Sensor in MyHOME temperature-control system (with control unit)
If configured to operate only as probe part of a MyHOME temperature system, the
thermostat receives the main set-points from the central unit (temperature set-point,
summer/winter set-point, etc.). You can change from normal operation to Comfort, ECO or
Antifreeze/Heat protection mode using the local key. With MyHOME_Suite you can disable
the change mode by local key.
The setting of a manual temperature set-point is possible, but it is only temporary, as it will only
last until the next set-point change sent by the central unit.
Operating mode
Press the MODE key once or more, to select the
desired mode
The symbol of the new mode appears and the set
temperature flashes (thermometer symbol off).
Use +and –to change the set-point.).
After a few seconds the new set-point is saved, and
the measured temperature appears (thermometer
symbol on).
Factory settings
Heating Cooling
Comfort 21 °C 25 °C
Eco 18 °C 28 °C
Antifreeze 7 °C
Thermal protection 35 °C
The adjustment interval can be set from a
minimum of 3° to a maximum of 40°.

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3 Using the thermostat
Temporary manual mode
Set the desired temperature using +or -; the display
will show the symbol .
The set-point set by the central unit can be
modified temporarily for the zone controlled by the
thermostat. The manual set-point remains active
until the central unit sends a new set-point.
After a few seconds the new set-point is saved and
the measured temperature appears. In this example
the set temperature is higher than the measured
temperature, therefore also the heating on indicator
will come on .

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Fan-coil adjustment
Press FAN to set the fan speed at the desired level.
If the thermostat manages a fan-coil type load, it is
possible to adjust the fan speed using the dedicated
pushbutton. With MyHome suite you can disable the
automatic speed setting by local key.
Comfort, eco, antifreeze/thermal protection operating modes
Select one of these modes using the MODE key. The thermostat will no longer follow the settings
of the central unit. The sensor mode must be set to automatic to be able to return to the control
unit settings. The mode cannot be changed from the control unit or other control device.
MyHOME_Suite can disable the mode key.
Note: during the adjustment the fan symbol and
the segment for the speed selected flash.
Speed 1
Speed 2
Speed 3
Automatic operation

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3.2 Hotel Thermostat
This paragraph describes the use of the thermostat in a hotel room.
Temperature adjustment
Use +and –to change the current temperature set-
point.
Once the desired value has been set, wait a few
seconds to save the new set-point.
The temperature measured will appear.
Factory settings
Heating Cooling
Adjustment interval 3 – 40 °C 3 – 40 °C
3 Using the thermostat

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Antifreeze or Thermal Protection
To switch from normal operation to Antifreeze (or
thermal protection) press the MODE key.
The display shows the symbol and the value set:
7 °C if heating is on;
35 °C if cooling is on.
After a few seconds the new set-point is saved and
the measured temperature appears.
To return to normal operation press MODE again.

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Switching from heating / cooling function
To change from the heating function to the cooling
function and viceversa keep the MODE key pressed
for at least 7 seconds.
7 seconds
The change of function is indicated by the
corresponding icon appearing on the display.
3 Using the thermostat
This operation may have been disabled
during installation.
If this operation is repeated, the system keeps switching between the two functions. Depending
on the type of system, the operation may cause the switch from heating function to cooling
function, and to automatic switching.

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Fan-coil adjustment
Press FAN to set the fan speed at the desired level.
If the thermostat manages a fan-coil type load, it is
possible to adjust the fan speed using the dedicated
pushbutton. With MyHome suite you can disable the
automatic speed setting by local key.
Note: during the adjustment the fan symbol and
the segment for the speed selected flash.
Speed 1
Speed 2
Speed 3
Automatic operation

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3.3 Home Thermostat
The thermostat can be used in the residential sector for the management of a single system.
Temperature adjustment
Once the desired value has been set, wait a few
seconds for the new set-point to be saved.
The value of the measured temperature will then
appear.
Use +or –to adjust the current temperature set-
point.
Factory settings
Heating Cooling
Adjustment interval 3 – 40 °C 3 – 40 °C
3 Using the thermostat

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Operating modes
Press the MODE key once or more to select the mode
required.
The symbol of the new mode appears and the set
temperature flashes (thermometer symbol off). Use
+and –to change the set-point.
After a few seconds, the new set-point is saved and
the measured temperature appears (thermometer
symbol on).
Factory settings
Heating Cooling
Comfort 21 °C 25 °C
Eco 18 °C 28 °C
Antifreeze 7 °C
Thermal protection 35 °C

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Switching from heating / cooling function
To change from the heating function to the cooling
function and viceversa keep the MODE key pressed
for at least 7 seconds.
7 seconds
The change of function is indicated by the
corresponding icon appearing on the display.
3 Using the thermostat
The display shows the set-point set for the heating or
cooling function.
If this operation is repeated, the system keep switching between the two functions. Depending
on the type of system, the operation may cause the switch from heating function to cooling
function, and to automatic switching.

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Fan-coil adjustment
If the thermostat manages a fan-coil type load, it is
possible to adjust the fan speed using the dedicated
pushbutton.
Press FAN to set the fan speed at the desired level.
Note: during the adjustment the fan symbol and
the segment for the speed selected flash.
Speed 1
Speed 2
Speed 3
Automatic operation

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3 Using the thermostat
3.4 Brightness adjustment
The current brightness level appears on the display.
Use thei +and –keys to increase or decrease the
brightness.
The display brightness can be adjusted on 10 levels.
Press the FAN key for at least 7 seconds.
Press the FAN key twice to confirm and quit the
function.
NOTE: the user setting procedure can be disabled using the software.

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3.5 Setting the temperature measurement unit
Press the FAN key again.
The current measurement unit appears on the
display.
Use the +and –keys to change from one
measurement unit to the other.
You can select setting the device on the temperature
scale expressed in degrees °C or °F.
Press the FAN key for at least 7 seconds.
Press the FAN key to confirm and quit the function.
NOTE: the user setting procedure can be disabled using the MyHomeSuite software.

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4.1 In case of error
The“Er” symbol followed by a number on the display indicates an error condition of the thermostat.
In this case refer to the installer manual, or contact a trusted technician.
Below is an example of an error screen.
4 Maintenance
NOTE: if ER4 or a temperature very different from the one felt are displayed, or after the first in-
stallation, wait at least 5 hours before checking the operation again.
If the problem continues, contact a trusted technician.