Gewiss Chorus GW 10 794H Owner's manual

GW 10 794H GW 12 794H GW 14 794H
MANUALE DI PROGRAMMAZIONE
PROGRAMMING MANUAL - MANUEL DE PROGRAMMATION
MANUAL DE PROGRAMACIÓN - PROGRAMMIERHANDBUCH
Cronotermostato/Programmatore T+H NX - da incasso
T
imed thermostat / Programmer T+H KNX - fl sh-mo nting
Thermostat programmable / Programmateur T+H NX - à encastrer
Cronotermostato/Programador T+H KNX - de empotrar
Chronothermostat/Programmierer T+H NX - für den Unterputz

CONTENTS
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page
GE ERAL DESCRIPTIO
Briefly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Position of the commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Description of the commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Control modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
USER I STRUCTIO S
Timed thermostat operation statuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Normal operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Setting the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Hourly profile programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Operation with battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Pre-set programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
F.A.Q. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

This manual explains the steps for setting the timed thermostat parameters.
All the information concerning the technical data of the product, the connection diagrams,
the descriptions of the commands, and the instructions for correct assembly are
contained in the installation manual supplied with the product and which can also be
downloaded from the website www.gewiss.com.
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Briefly
GENERAL DESCRIPTION

GENERAL DESCRIPTION
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Position of the commands
The timed thermostat is equipped with a backlit LCD display and four command push-
buttons that can always be accessed.
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Description of the commands
COMMA D PUSH-BUTTO S Symbol
햲Select operating mode / Confirm
햳Adjust temperature (+) / Visualise pages
햴Adjust temperature (-) / Visualise pages
햵Set parameters / Program profiles
ATTE TIO !
If the display backlighting is enabled, only the screen will light up when any one of the
4 front button keys is pressed for the first time; press the keys again to implement the
required command.

I FORMATIO O THE DISPLAY Symbol
Time of day / Variable value of the hourly profile / Value shown on the humidity page
(Hr = relative humidity; HA = specific humidity; tr = dew point temperature)
Day of the week
Programming mode
Settings menu
Battery charge level
if the profile flashes: devi e powered from batteries alone (no BUS)
Heating activation - 1st stage (flame) or 2nd stage (flame+asterisk)
if the flame flashes: no/in orre t re eption of heating solenoid valve (1st stage) alert
if the asterisk flashes: no/in orre t re eption of heating solenoid valve (2nd stage) alert
Cooling activation - 1st stage (snowflake) or 2nd stage (snowflake+asterisk).
On the humidity page, the asterisk indicates a comfortable environment
if the snowflake flashes: no/in orre t re eption of ooling solenoid valve (1st stage) alert
if the asterisk flashes: no/in orre t re eption of ooling solenoid valve (2nd stage) alert
Type of operation: heating (winter)
if it flashes: floor temperature alarm in progress
Type of operation: cooling (summer)
Party function
Holiday function
Non-workday program
Remote command enabling
if it flashes: operation on basis of a remote ommand
Selection of display page to be viewed
Fan coil operating mode
- speed OFF
- speed 1 (automatic / manual)
- speed 2 (automatic / manual)
- speed 3 (automatic / manual
if the fan flashes: no/in orre t re eption of fan oil speed alert
if the segments flash: the speed set (manually or by algorithm) is waiting to be a tivated
Hourly profile visualised (for hourly timer only)
Timed thermostat in “Master” mode
Temperature measured / Time of day / Relative humidity value measured /
Specific humidity value / Dew point temperature value
if it flashes: manual for ing of the setpoint, or end of humidity probe monitoring time
Temperature measurement unit
Indication of auxiliary input status (I = contact closed, O = contact open)
Thermal gradient self-learning function
Thermal residual current device
Timed thermostat mode
- Economy (in heating mode) - Comfort (in cooling mode)
- Pre-comfort (in heating mode and cooling mode)
- Comfort (in heating mode) - Economy (in cooling mode)
- Anti-freeze/High temperature protection (OFF) or Automatic (AUTO)
if the segments flash: the setpoint is temporarily for ed
Hourly timer mode
- Variable value 1 of hourly profile
- Variable value 2 of hourly profile
- Variable value 3 of hourly profile
- Variable value 4 of hourly profile
Visualise hourly program
GENERAL DESCRIPTION
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햶
햷
햸
햹
햺
햻
햽
햾
햿
헀
헁
헂
헃
헄
헅
헆
쎻
쎻
쎻
쎻
쎻
쎻
쎻
쎻
쎻
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GENERAL DESCRIPTION
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The timed thermostat can be set with 2 different control modes:
•Master: the timed thermostat sets the type, operating mode or setpoint of the devices
configured as slaves (e.g. the NX flush-mounting thermostats GW1x795H), on the basis of
the ETS parameterisation. In the first case (modes), the thermostats use the set-points
configured via ETS. These can be modified locally and via the BUS if these options are enabled
in the ETS configuration. The fixed temperature setpoint can be temporarily forced, but the
operating mode cannot be altered. The forced setpoint will remain valid until the master device
sends a new operating mode. In the second case (set-points), the thermostats use the setpoint
received from the master device (but which can always be altered locally).
•Autonomous: the timed thermostat type and operating mode can be set locally. Operation is
not dependent on any other device. In the autonomous control mode, you can alter the setpoint
as you wish, and enable the timed thermostat to receive remote commands to modify the mode
setpoint (OFF/Economy/Pre-comfort/Comfort) and set the type (Heating/Cooling) received from
other devices such as a push-button or the NX GSM remote control.
The timed thermostat has 5 different operating modes:
• AUTOMATIC
• ECONOMY
• PRE-COMFORT
• COMFORT
• OFF - ANTIFREEZE/HIGH TEMPERATURE PROTECTION
In any control mode (autonomous or master), to switch from one HVAC mode (economy, pre-
comfort, comfort, off) to another, use the button key: each time it is pressed, the
corresponding setpoint is shown (flashing) for a moment.
In automatic operation mode, the timed thermostat uses a
program that can be differentiated for each day of the week.
The display shows the word AUTO, the detected room
temperature, and the symbol of the setpoint for the current
quarter hour period. In the hourly profile, the column relating
to the current hour flashes, showing the current setpoint.
In the economy, pre-comfort and comfort operating modes,
the timed thermostat always uses the corresponding
temperature set-points.
The display shows the detected room temperature and the
, or symbol.
Control modes
Operating modes

GENERAL DESCRIPTION
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MEANING OF
The anti-freeze function is only active in heating mode,
when the temperature adjustment system is switched OFF.
In this case, the timed thermostat uses the fixed anti-freeze
temperature setpoint, only reactivating the heating system
if the room temperature falls below TANTIGELO (Tanti-freeze).
The display shows the word OFF, along with the detected
room temperature.
The high temperature protection function is only active
in cooling mode, when the temperature adjustment system
is switched OFF.
In this case, the timed thermostat uses the fixed high
temperature protection setpoint, only reactivating the
cooling system if the room temperature exceeds TPROTEZIONE
ALTE TEMPERATURE (Thigh temperature protection.
The display shows the word OFF, along with the detected
room temperature.
In the Master control mode, the display shows the
temperature and the symbol. The slave devices use the
operating mode or the setpoint value received from the
timed thermostat (master device) via the BUS.
Symbol
Heating Cooling
Setpoint Operating
mode Setpoint Operating mode
TECONOMY Economy TCOMFORT Comfort
TPRE-COMFORT Pre-comfort TPRE-COMFORT Pre-comfort
TCOMFORT Comfort TECONOMY Economy

GENERAL DESCRIPTION
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During operation, the activation of the heating or cooling mode is indicated in the
following way:
Heating
The symbol indicates that the activation command has
been sent to the command actuator of the boiler or area
solenoid valve (1st stage of the heating system(1)). If the load
notifications have been activated via ETS, and the timed
thermostat does not receive confirmation of effective
implementation from the actuator, the symbol will begin
to flash. Subsequently, the timed thermostat sends the
activation command every 60 seconds until it receives
confirmation. The symbol indicates that the 2nd stage
of the heating system(1) has been activated.
Cooling
The symbol indicates that the activation command has
been sent to the command actuator of the conditioner or
area solenoid valve (1st stage of the cooling system(1)). If the
load notifications have been activated via ETS, and the timed
thermostat does not receive confirmation of effective
implementation from the actuator, the symbol will begin
to flash. Subsequently, the timed thermostat sends the
activation command every 60 seconds until it receives
confirmation. The symbol indicates that the 2nd stage
of the cooling system(1) has been activated.
Operation with active fan coil control
If the fan coil control function has been activated in the
setting of the parameters via ETS, the display will show the
symbol.
In addition, you will be offered the page on which you can
manually alter the fan coil speed or set the AUTO mode
(whereby the fan coil speed is automatically adjusted on the
basis of the difference between the setpoint fixed on the
device and the detected temperature).
(1) Some temperature adjustment systems (e.g. floor-mounting ones) have a very high thermal inertia level, so
it takes considerable time to bring the room temperature into line with the required setpoint; in order to reduce
this inertia, another system with less inertia is often installed to help the main system to heat/cool the room
when the difference between the setpoint and the detected temperature is particularly marked. This system,
known as 2nd stage, helps to heat/cool the room during the initial phase, then it stops working when the
difference between the setpoint and the temperature can be managed in a faster way.

USER INSTRUCTIONS
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Timed thermostat operation statuses
The timed thermostat has three distinct operation statuses:
- Normal operation
- Parameter setting
- Hourly profile programming
When it is switched on, the timed thermostat goes into “normal operation” status. Using the
button key, you can switch from one status to another (the switchover from “parameter
setting” status or “hourly profile programming” status to “normal operation” status also
comes about automatically, 30 seconds after the last pressure on the button keys).
ormal operation
In normal operating conditions, the pages containing information about the timed
thermostat are visualised. If the sections relating to the hourly timer and humidity were
enabled during ETS programming, the relative pages will also be shown.
Choosing the page you want to see
To access the screen listing the pages that can be viewed
(relating to the timed thermostat, hourly timer and
humidity), press the button key and keep it pressed until
the symbol appears.
Use the or button key to scroll through the sequence
(if there are no hourly profiles - P01, P02, P03, etc. - and no
humidity section, the main timed thermostat page will be
displayed). To confirm a page, press the button key or
wait for the 30-second time-out period to elapse.
Pages relating to the timed thermostat
Choosing the HVAC mode (auto, pre-comfort, comfort,
economy or OFF)
If the visible page relates to the timed thermostat, press the
button key to select the required HVAC mode (Auto, ,
, or ).
Each time the button key is pressed, the setpoint of the
selected HVAC mode is shown for a moment.

USER INSTRUCTIONS
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Forcing the setpoint manually
If the displayed page relates to the timed thermostat and any HVAC
mode other than OFF is active, press the or button key to
temporarily modify the setpoint of the active HVAC mode, then
confirm with the button key or wait for the 5-second time-out
period to elapse. The use of the forcing option is indicated by the
flashing of the , , symbols. It remains active until the active
HVAC mode is modified or until the profile is altered (if the mode is
Auto).
Choosing the fan coil speed
If the displayed page relates to the timed thermostat and any HVAC
mode other than OFF is active, press or simultaneously
to access the selection page (the control algorithm of the
heating/cooling function must be set on “fan coil” from ETS). Use the
or button key to select the required fan coil setting ( ,
, or ), then confirm with the button key or wait
for the 30-second time-out period to elapse.
Party function
In the Auto, Economy, Pre-comfort and Comfort modes, the Party
function allows you to temporarily exclude the set operating mode
and activate the Comfort mode with an adjustable setpoint, for a
period of time between 1 and 23 hours. This function can be used,
for instance, to obtain a more appropriate temperature during a
dinner, party, etc.
If the visible page relates to the timed thermostat and any HVAC
mode other than OFF is active, keep the button key pressed to
activate the Party function. The display will show the symbol,
and the Tcomfort value will flash for a few seconds. Press the
and button keys to set the required temperature then, while the
setpoint values are flashing, press the button key and then the
and button keys to set the number of hours you want the
Party function to remain active (1-23). Confirm with the button
key or wait for the 5-second time-out period to elapse.
When this function is active, the values of the setpoint and
activation period can be modified by means of the and button
keys. The hour count is decreased during this period. The Party
function remains active until the end of the set period, after which
it deactivates automatically and the timed thermostat returns to the
former operating mode.

To deactivate the Party function in advance, press the button
key and keep it pressed until the unit has returned to normal
operation.
Holiday function
In the Auto, Economy, Pre-comfort and Comfort modes, the
Holiday function allows you to temporarily exclude the set
operating mode and activate the Economy mode with an
adjustable setpoint, for a period of time between 1 and 99 days.
This function can be used, for instance, to set the economic
operation of the temperature adjustment system during a
holiday or a long period of absence, being sure of having the
required temperature on the day you return home.
If the visible page relates to the timed thermostat and any HVAC
mode other than OFF is active, keep the button key pressed
to activate the Party function. Press the button key again
briefly to activate the Holiday function. The display will show
the symbol, and the Teconomy value will flash for a few
seconds. Press the and button keys to set the required
temperature then, while the setpoint values are flashing, press
the button key and then the and button keys to set the
number of days you want the Holiday function to remain active
(1-99). Confirm with the button key or wait for the 5-second
time-out period to elapse.
When this function is active, the values of the setpoint and
activation period can be modified by means of the and
button keys.
The day count is decreased during this period. The Holiday
function remains active until the end of the set period, which
ends at midnight. When calculating the days, always include
the current day. For example, if you want to set the Holiday
function on Friday evening, so it ends at midnight on Sunday,
you must set 3 days (Friday, Saturday and Sunday). The Holiday
function remains active until the end of the set period, after
which it deactivates automatically and the timed thermostat
returns to the former operating mode. To deactivate the Holiday
function in advance, press the button key to return to normal
operation.
USER INSTRUCTIONS
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Copying the holiday program
In Auto mode, you can copy the profile of the holiday day
onto any day of the week. This function can be activated up to
6 days ahead of the chosen day. It is especially useful when a
holiday day falls during the week.
Press the and button keys simultaneously to copy the
profile of the holiday day: on the display, the symbol and the
bar of the holiday day will flash. Use the or button key
to select the day of the week onto which you want to copy the
profile, then confirm with the button key.
During the set day, the symbol will be lit up with a fixed light.
This function is temporary: at midnight on the selected day, the
unit returns to its programmed weekly profile. If you want to
deactivate the function (or modify the day of the week), press
the and button keys then select the holiday day (or
the new day of the week). Press to confirm the new setting.
Pages relating to the hourly timer
Viewing the hourly profiles
If the visible page relates to an hourly profile, press the
button key to activate (Auto) or deactivate (OFF) the profile.
When the profile is active, you can use the or button key
to modify the current value: this operation is different from the
temporary forced temperature function for the timed thermostat
profiles, as the modification is stored in the memory.
In addition, if the command format of the hourly profile is set in
ETS as “1-byte HVAC mode” or “2-byte temperature”, the
prolonged pressing of the button key will temporarily bring
up the input data (regarding the type of operation, HVAC mode,
active setpoint and detected temperature) from the device
controlled by the profile.
USER INSTRUCTIONS
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Page relating to the humidity ection
View the humidity parameter
If the page displayed relates to the humidity section, press the
or button key to view the relative humidity value Hr,
specific humidity HA and dew point temperature tr.
To return to the screen listing the pages that can be viewed,
keep the button key pressed.
Use the or button key to scroll through the sequence. To
confirm a page, press the button key or wait for the 30-
second time-out period to elapse.
USER INSTRUCTIONS
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Parameter setting
To set the operating parameters of the device, bring up the main timed thermostat page
or the general hourly timer profile or the humidity page on the screen, then press the
button key.
To quit the parameter setting procedure without saving the modifications made on the
current page, just press the button key again or wait 30 seconds from the last pressure
on the button keys. The parameters that can be modified will depend on the page you
are viewing in normal operation status: if the visible page relates to the timed thermostat,
the Set menu concerning the timed thermostat will be shown; if the visible page is that
of a general hourly timer profile, the Set menu concerning the selected profile will be
shown; if the visible page relates to the humidity section, the Set menu concerning the
selected humidity threshold will be shown.
The parameters relating to the timed thermostat / hourly timer / humidity are collected
into three functional groups: general parameters, operating parameters, and control
parameters. Each group can be enabled or disabled for visualisation and/or local
modification, by setting the ETS parameter “Local parameter modification” of the
“General” menu.

USER INSTRUCTIONS
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General parameters
Setting the day
Access to the Set menu is indicated by the word SET on the
display, and by the flashing of the day of the week. Set the
day by means of the button keys (MON, TUE, WED,
THU, FRI, SAT, SUN).
To confirm your choice and move on to the next parameter,
press the button key within 30 seconds.
Setting the hour
When the hour figures are flashing, set the hour using the
button keys.
To confirm the set value and move on to the next parameter,
press the button key within 30 seconds.
Setting the minutes
When the minute figures are flashing, set the minutes using
the button keys.
To confirm the set value and move on to the next parameter,
press the button key within 30 seconds.
Setting GMT / daylight-saving time
Use the or button key to choose either GMT or
daylight-saving time (OFF = GMT; ON = daylight-saving
time). This screen is only visible if the parameter has been
enabled from ETS.
To confirm your choice and move on to the next parameter,
press the button key within 30 seconds.
Setting the temperature measurement unit
When the °C or °F temperature symbol begins flashing,
select the temperature measurement unit by means of the
button keys.
To confirm your choice and move on to the next parameter,
press the button key within 30 seconds.

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Returning to the main page
Use the or button key to set the main page that the
device must automatically visualise at the end of a period
of inactivity by the user (OFF = function disabled; TIMED
THERMOSTAT = main page of the timed thermostat;
PRO01, PRO02 ... PRO10 = pages relating to the hourly
profiles, if enabled; Hr = pages relating to humidity, if
enabled).
If this function is enabled, press the button key to access
the page for setting the duration of the inactivity period. Use
the or button key to set the gap (5 - 120 seconds). To
confirm your choice and move on to the next parameter,
press the button key within 30 seconds.
Back-lighting colour
Use the or button key to modify the colour of the
display back-lighting. To confirm your choice and move on
to the next parameter, press the button key within 30
seconds.
NB: if red/blue is chosen, the timed thermostat background
will be white during the idle phase (heating and cooling
valves deactivated) of normal operation, turning red when
the heating system is activated or blue when the cooling
system is activated.
Icons theme
Use the or button key to modify the colour themes for
representing the various icons shown on the display (MONO
= single-colour theme; TH1, TH2, TH3, TH4, TH5 = colour
themes) when the backlighting is active. The screen is only
visible if the back-lighting colour is white. To confirm your
choice and move on to the next parameter, press the
button key within 30 seconds.
USER INSTRUCTIONS

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Single-colour theme for icon colour
Use the or button key to modify the colour of the icons
within a single-colour theme. This parameter is only visible
if the icon theme is single-colour and the back-lighting is
active. To confirm your choice and move on to the next
parameter, press the button key within 30 seconds.
Back-lighting timing
Use the or button key to set the minimum duration of
the inactivity time of the user before the back-lighting is
automatically deactivated (the gap can be set from 10 to
180 seconds). This parameter is only visible if the back-
lighting is active. To confirm your choice and move on to
the next parameter, press the button key within 30
seconds.
Back-lighting intensity
Use the or button key to choose how to manage the
back-lighting intensity (MAN = fixed value; SENS = light
sensitive sensor). This parameter is only visible if the back-
lighting is active. If the type of management is MAN, use
the or button key to choose the required percentage
of light intensity (the gap can be set from 30 to 100%).
If the type of management is SENS, use the or button
key to increase (+10%), decrease (-10%) or leave unaltered
(0%) the intensity value detected by the built-in light-
sensitive sensor.
To confirm your choice and move on to the next parameter,
press the button key within 30 seconds.
If the local modification function has been enabled from the ETS menu for the General
Parameters group only, press the button key to return to the start of the parameter
configuration menu. Otherwise, continue with the configuration of the next group of
parameters.
USER INSTRUCTIONS

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The figure shows that as long as the detected temperature
is below the heating setpoint, the operating mode is
“heating”; if the detected value is higher than the cooling
setpoint, then the operating mode is “cooling”. If the
detected value is within the interdiction area, the operating
mode remains as before. The heating -> cooling switchover
point corresponds to the setpoint of the HVAC mode relating
to cooling; the cooling -> heating switchover point
corresponds to the setpoint of the HVAC mode relating to
heating.
(1) The operating mode of the device (heating or cooling) can be managed manually or autonomously (by the
device itself). The manual method is via the local navigation menu or BUS commands that allow you to switch
from one type to another, modifying the specific parameter. The automatic mode is based on the principle of
an interdiction area - i.e. the temperature gap between the setpoints of the HVAC heating and cooling modes,
allowing the automatic switchover from one type of operation to the other.
Operating parameters
White balancing
Use the button keys or to set the weight of the red
(RED), green (GRE) and blue (BLU) component in the
backlighting of the display (value can be set between 1 and
63). The regulation only applies to the white colour of the
screen. To confirm your choice and move on to the next
parameter, press the button key within 30 seconds.
Heating / cooling selection
Use the or button key to select the operating type
( = heating; = cooling; = auto). The auto
function is visible if the timed thermostat function is active
and the interdiction area(1) has been enabled via the relative
ETS parameter. To confirm your choice and move on to the
next parameter, press the button key within 30 seconds.
USER INSTRUCTIONS
Air-conditioning
Interdiction area
Heating

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If the displayed page relates to the timed thermostat
(type of operation: heating)
Setpoint setting
Used to modify the temperature value associated with the
setpoint.
Adjust the value of (TECONOMY) with the aid of the
button keys.
To confirm the set value and move on to the next parameter,
press the button key within 30 seconds.
Setpoint etting
Used to modify the temperature value associated with the
setpoint.
Adjust the value of (TPRE-COMFORT) with the aid of the
button keys. To confirm the set value and move on to
the next parameter, press the button key within 30
seconds.
Setpoint etting
Used to modify the temperature value associated with the
setpoint.
Adjust the value of (TCOMFORT) with the aid of the
button keys.
To confirm the set value and move on to the next parameter,
press the button key within 30 seconds.
Setting the anti-freeze temperature value
Used to modify the temperature value associated with the
TOFF setpoint.
Adjust the anti-freeze temperature value (TOFF) using the
button keys.
To confirm the set value and move on to the next parameter,
press the button key within 30 seconds.
USER INSTRUCTIONS

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If the displayed page relates to the timed thermostat
(type of operation: cooling)
Setpoint etting
Used to modify the temperature value associated with the
setpoint.
Adjust the value of (TCOMFORT) with the aid of the
button keys.
To confirm the set value and move on to the next parameter,
press the button key within 30 seconds.
Setpoint etting
Used to modify the temperature value associated with the
setpoint.
Adjust the value of (TPRE-COMFORT) with the aid of the
button keys. To confirm the set value and move on to
the next parameter, press the button key within 30 sec-
onds.
Setpoint etting
Used to modify the temperature value associated with the
setpoint.
Adjust the value of (TECONOMY) with the aid of the
button keys.
To confirm the set value and move on to the next parameter,
press the button key within 30 seconds.
Setting the high temperature protection value
Used to modify the temperature value associated with the
TOFF setpoint.
Adjust the high temperature protection value (TOFF) using
the button keys.
To confirm the set value and move on to the next parameter,
press the button key within 30 seconds.
USER INSTRUCTIONS