Gewiss Chorus GW 10 795 Owner's manual

GW 10 795 GW 12 795 GW 14 795
Termostato KNX - da incasso
KNX the mostat - flush-mounting
Thermostat KNX - à encastrer
Te mostato KNX - de empot a
KNX-Thermostat - für den Unterputz
MANUA E DI PROGRAMMAZIONE
PROGRAMMING MANUAL - MANUEL DE PROGRAMMAT ON
MANUAL DE PROGRAMACIÓN - PROGRAMM ERHANDBUCH

CONTENTS
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page
GENERA DESCRIPTION
Briefly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Position of the commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Description of the commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Control modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
USER INSTRUCTIONS
Thermostat operation statuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Normal operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Parameter setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Pre-set parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
F.A.Q. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

This manual explains the steps for setting the 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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The thermostat is equipped with a backlit LCD display and four command push-buttons
that can always be accessed.
910
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Position of the commands

GENERAL DESCRIPTION
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COMMAND PUSH-BUTTONS Symbol
Select operating mode / Confirm
Adjust temperature (+) / Visualise pages
Adjust temperature (-) / Visualise pages
Setting the parameters
INFORMATION ON THE DISP AY
Clock / KNX temperature adjustment probe visualised
Settings menu / Set the values to send to the KNX temperature adjustment probe
Heating activation 1° stage (flame) or 2° stage (flame+asterisk)
Air-conditioning activation 1° stage (snowflake) or 2° stage (snowflake+asterisk)
Type of operation: heating
Type of operation: air-conditioning
Enable remote commands
Fan coil operating mode
- speed OFF
- speed 1 (automatic / manual)
- speed 2 (automatic / manual)
- speed 3 (automatic / manual)
Thermostat in Slave operation
Measured temperature / Temperature measured by KNX temperature adjust-
ment probe / Setpoint on KNX temperature adjustment probe input
Temperature measurement unit
ndication of auxiliary input status ( = contact closed, O = contact open)
Thermal residual current device
Visualisation of temperature measured by KNX temperature adjustment probe
Thermostat mode
- Economy (in heating mode) - Comfort (in air-conditioning mode)
- Pre-comfort (in heating mode and air-conditioning mode)
- Comfort (in heating mode) - Economy (in air-conditioning mode)
- Anti-freeze / High temperature protection
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Description of the commands

GENERAL DESCRIPTION
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The thermostat can be set with 2 different control modes:
•Slave: the functioning depends on the device configured as the Master (e.g. the
GW1x794 KNX flush-mounting timed thermostat), that sets the type, operating mode
or set-point of the thermostat on the basis of the ETS parameterisation. n the first
case (modes), the thermostat uses 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 set-point can be temporarily forced, but the operating mode
cannot be altered. The forced set-point will remain valid until the master device sends
a new operating mode. n the second case (set-points), the thermostat uses the set-
point received from the master device (but which can always be altered locally).
•Autonomous: the thermostat type and operating mode can be set locally. Operation
is not dependent on any other device. n the autonomous control mode, you can alter
the set-point as you wish, and enable the thermostat to receive remote mode-setting
commands (OFF/Economy/Pre-comfort/Comfort) and type-setting commands
(Heating/Conditioning). Such commands may be sent from other devices such as a
push-button or the KNX GSM remote control.
The thermostat has 4 different operating modes:
• ECONOMY
• PRE-COMFORT
• COMFORT
• OFF - ANT FREEZE/H GH TEMPERATURE PROTECT ON
n the autonomous control mode, to switch from one HVAC mode (economy, pre-comfort,
comfort, off) to another, use the key: each time it is pressed, the corresponding set-
point is shown (flashing) for a moment.
n the slave control mode, no local modification of the HVAC mode is allowed; only the
manual switch-off (if enabled) of the device is possible (HVAC OFF).
n the economy, pre-comfort and comfort operating
modes, the 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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MEAN NG OF
The anti-freeze function is only active in heating mode,
when the temperature adjustment system is switched OFF.
n this case, the thermostat uses the fixed anti-freeze
temperature set-point, only reactivating the heating system
if the room temperature falls below TANT -FREEZE.
The display shows the word OFF, along with the detected
room temperature.
The high temperature protection function is only active
in conditioning mode, when the temperature adjustment
system is switched OFF.
n this case, the thermostat uses the fixed high temperature
protection set-point, only reactivating the conditioning
system if the room temperature exceeds TH GH TEMPERATURE
PROTECT ON.
The display shows the word OFF, along with the detected
room temperature.
n the Slave control mode, the display shows the
temperature and the symbol. The thermostat uses the
operating mode or the set-point value received from the
master device via the BUS.
Symbol
Heating Air-conditioning
Set-point Ope ating
modes Set-point Ope ating modes
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 heating or conditioning 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 (1° stage of the heating system(1)). f the load
notifications have been activated via ETS, and the thermostat
does not receive confirmation of effective implementation
from the actuator, the symbol will begin to flash.
Subsequently, the thermostat sends the activation command
every 60 seconds until it receives confirmation. The
symbol indicates that the 2° stage of the heating system(1)
has been activated.
Air-conditioning
The symbol indicates that the activation command has
been sent to the command actuator of the air-conditioner or
area solenoid valve (1° stage of the air-conditioning
system(1)). f the load notifications have been activated via
ETS, and the thermostat does not receive confirmation of
effective implementation from the actuator, the symbol
will begin to flash. Subsequently, the thermostat sends the
activation command every 60 seconds until it receives
confirmation. The symbol indicates that the 2° stage of
the air-conditioning system(1) has been activated.
Operation with active fan coil control
f the fan coil control function has been activated in the
setting of the parameters via ETS, the display will show the
symbol.
n 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 set-point 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 set-point; 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 set-point and the detected temperature is particularly marked. This system,
known as 2° stage, helps to heat/cool the room during the initial phase, then it stops working when the
difference between the set-point and the temperature can be managed in a faster way.

USER INSTRUCTIONS
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Thermostat operation statuses
The thermostat has two distinct operation statuses:
- Normal operation
- Parameter setting
When it is switched on, the thermostat goes into "normal operation" status. Using the
button key, you can switch from one status to the other (the switchover from "parameter
setting" status to "normal operation" status also comes about automatically, 30 seconds
after the last pressure on the button keys).
Normal operation
n normal operation conditions, the pages containing information about the thermostat
are shown, along with the pages relating to any remote elements (e.g. KNX temperature
adjustment probes) that may be present.
Choosing the page you want to see
To access the screen listing the pages that can be viewed
(relating to the thermostat and remote elements), keep the
button key pressed.
P04Use the or button key to scroll through the
sequence (if there are no remote elements, called P01, P02,
P03, etc., the main thermostat page will be shown). To
confirm a page, press the button key or wait for the 30-
second time-out period to elapse.
Pages relating to the thermostat (control type: HVAC)
Choosing the HVAC mode (pre-comfort, comfort,
economy or OFF)
f the visible page relates to the thermostat, and the control
type has been set by ETS in HVAC mode, press the button
key to select the required HVAC mode ( , ,
or ).
Each time the key is pressed, the set-point of the selected
HVAC mode is shown for a moment.
f the device is configured as a Slave, no local modification
of the HVAC mode is allowed; manual HVAC switch-off (OFF)
is permitted if this function is enabled via ETS.