Atag WIZE User manual

U s e r m a n u a l
ATAG WiZe
programmable modulating room thermostat
8X.52.03.00/09.09
GB / I / TR

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Contents
Page
1 Key functions.....................................................................4
1 Specications ....................................................................6
2 Mounting and initial operation ...........................................9
2.1 Mounting ..................................................................9
2.2 Initial operation....................................................... 11
3 Manual mode ..................................................................12
3.1 Activating manual mode.........................................12
3.2 Manual thermostat mode .......................................12
4 Clock program central heating ........................................14
4.1 Activating central heating’s clock program.............14
4.2 Set the three required room temperatures.............15
4.3 Select a pre-programmed weekly program............17
4.4 Amend the weekly program ...................................18
4.5 Adjusting temperature temporarily .........................23
5 User settings ...................................................................24
5.1 Summary of user menu..........................................24
5.2 Comfort / Economy setting.....................................25
5.3 Using central heating timer ....................................29
5.4 Reading device information ...................................30
5.5 Adjusting hot water and central heating setpoint ...32
5.6 Summary of settings menu ....................................34
5.7 Resetting the exact day and time
(e.g. summer/winter time) ......................................35
5.8 User recommendations / holidays..........................36
6 Fault indicator..................................................................37
6.1 Dismantling and loss of voltage .............................39
7Technicalspecications..................................................42

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Key functions
1 Time bar (24 hours) of the clock program (from 03.00 to
03.00 hours).
The bar displays the day program set.
2 Tap symbol for tap water Comfort/Economy setting.
 •Symbolvisible:Comfortsettingalwaysonorswitchingon/
off automatically.
 •Symbolnotvisible:Economysetting.
3 Radiator symbol for central heating operation.
 •Symbolvisible=centralheatingoperationpossible.
 •Symbolnotvisible=centralheatingoperationnotpos-
sible.
4 This symbol is visible when the boiler is set to the Economy
position and no central heating operation is possible. Room
temperature is now kept at approximately 5°C (anti-freeze
protection).
5 The hand symbol is visible when the room temperature of
the clock program has been adjusted using the arrow keys
(this applies until the next temperature change of the clock
program).
6 The sun symbol is visible if during a switched on weather
dependent setting the average daily temperature remains
above or around 18°C.
7 The fault symbol is visible as soon as a fault becomes ap-
parent.
8 Theamesymbolisvisiblewhentheboiler’sburnerison.
9 Arrow keys and , with which settings such as room
temperature can be adjusted.

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10Currentroomtemperature(measured).Aashing°Csym-
bol indicates that switch-on optimization is active.
11 Menu key . Pressing this key displays the user menu
(chapter 5.1 refers). The standard display will reappear
when pressing this key again or when no key is being pres-
sed for 2 minutes.
12 The arrow symbols become visible when the correspon-
ding key has a function.
13 Function keys. The numbers are not printed on the keys
but only mentioned in this instruction manual.
14 The text bar is used to provide information.
15 Day and time display.

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1. Specications
This chapter explains how the clock thermostat
and some of its functions work.
• Nobatteries.
• Lossofvoltage
• Manualmode
• Centralheating’sclockprogram.
• Self-learningswitch-onoptimization:Comfortablywarmon
time.
• AdditionalsavingsinEconomysetting.
• On-screendeviceinformation.
• Modulatingcentralheatingcontrol.
• Weatherdependentcontrol.
• Timerfunction.
No batteries
For its functioning the clock thermostat receives its energy
fromtheconnectedboiler.Nobatteriesrequired.
Loss of voltage
In the case of loss of voltage all settings are saved in the clock
thermostat’s memory. After a 4 hour loss of voltage only the
day and time setting has to be reset. However, for it to work the
clock thermostat should have been connected for a minimum
of 1 hour. To save energy during loss of voltage no information
is being displayed on the screen.
Operational mode selection:
a. Manual mode
The clock thermostat can be used as an ‘ordinary’ room ther-
mostat, i.e. without using the clock program. In this case you
can switch on the thermostat in the morning, adjust it during
the day as required and reset it to the night temperature in the
evening.
Refer to chapter 3 for additional information.
b. Automatic mode
(Clock program for central heating)
The thermostat has a clock program which automatically con-
trols room temperature every day of the week. Every day and
every half an hour a different temperature can be preset.
Refer to chapter 4 for additional information.

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Self-learning: Comfortably warm on time
(only in automatic mode)
The self-learning switch-on optimization ensures that the re-
quired temperature is reached at the time programmed. Since
outside temperatures vary daily, the thermostat re-determines
every day at what time the boiler has to start up in the morning
to ensure it being warm on time. If that temperature has not
been reached at the time set, it will start heating up earlier the
next morning. The same applies the other way round. This
switch on optimization also applies when the thermostat setting
is lowered during the day and the home is heated up again in
the afternoon. In this case, the switch-on optimization in the
morning(before12:00hours)willbedifferentthanintheafter-
noon(after12:00hours).Thisisbecausecoolingdownduring
the day is slower than at night. It may take about a week
before the thermostat ‘has learned how to work’.
Additional savings in Economy setting
(Does not apply to ATAG Q-Series)
Using the thermostat it is possible to switch any available Com-
fort settings for hot water mode on or off. In the Comfort setting
the boiler’s hot water input is set to retain its temperature for
quickhotwaterinput.Whenthepipeconnectionstothetap
are short, at night or when you are away, this Comfort setting
is not required and you can switch the boiler setting back to
Economy. There are 4 alternatives for Comfort and Economy
settings.
Additional information can be found in chapter 5.2.
Communication language
TheWiZeclockthermostatcommunicateswiththeconnected
boilerviatheATAGZ-bus(OpenTherm),auniversalcommu-
nication language for boilers. By means of a double core cable
this language is used to exchange information between the
thermostat and connected boiler.
On-screen device information
Using the thermostat certain boiler data can be read. For
instance,theamesymbolindicateswhethertheboilerisonor
not. The information menu, amongst other things, can display
the outside temperature or boiler pressure. It depends on the
boiler type whether all menu information is displayed because
related sensors have to be available and installed.
Refer to chapter 5.4 for additional information.

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Modulating central heating control
TheWiZeclockthermostatmeasurestheroomtemperature
and uses it to determine the area’s heat demand. Depending
on room temperature the thermostat determines the water
temperature required by the boiler. As a result the boiler also
determines the capacity required resulting in optimum heat
input to the house combined with the lowest energy consump-
tion possible.
Weather dependent control
TheWiZeclockthermostatcanalsobeusedasaweatherde-
pendent control. The major difference as opposed to ordinary
room temperature control is that when the weather dependent
control is switched on the boiler input temperature is being
controlled instead of the temperature of the room where the
thermostat is located. The control is called ‘weather dependent’
because it uses an optional outside temperature sensor. In
combination with thermostatic radiator taps throughout the
house, room temperatures for each room can be controlled
individually. Depending on measured outside temperatures
and the heating curve set on the thermostat, the boiler’s water
temperaturewillincreaseordecrease.Effectively:Thecolder
it gets outside, the hotter the boiler’s water will get and vice
versa.
Refer to chapter 5.8 for additional information.
Timer function
Using the timer function you can select either a set time or a
xedtemperature.Duringalongerabsence,forinstance,ital-
lows you to temporarily select a lower temperature or a higher
temperature for a party or when you are doing overtime.
Refer to chapter 5.3 for additional information.

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RIGHT
WRONG WRONG
2. Mounting and initial operation
2.1 Mounting 9
2.2 Initial operation 11
2.1 Mounting
A .Choose a suitable location for mounting the thermostat.
Suitablemountinglocation:
At a height of approx. 1.5 m, away from windows and doors;
on an internal wall without obstacles around the room ther-
mostat.
Wrongmountingplaces:
•Inaplacewherethesuncannotshinedirectlyonthether-
mostat.
•Onacoldoutsidewall(maybettinginsulationmaterial
behind the thermostat).
•Ina“blindsport”,forinstancebehindacupboard;
•Aboveaheartsourcesuchasaradiator,lamporTV-set;

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B. Remove the rear panel
C. Mount the rear panel on the wall (A refers)
Use the rear panel as a template to mark the holes! Seal the
hole where the wiring originates to prevent likely draught.
Use the screws and plugs supplied.
D. Fit wiring to rear panel
Make sure that the boiler plug has been removed from its
socket!
 OnlyconnectthewiringtotheZ-ready/busthermostat
connectionoftheboiler.Wrongconnectionsmaycause
considerable damage to the thermostat! It does not matter
where the conductor is connected. Prevent the wires from
runningpast230Vcables.
E. Snap the housing onto the rear panel
(hold thermostat with both hands)
The thermostat hinges at the top and is clamped at the
bottom (in the middle).

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2.2 Initial operation
Plugtheboiler’splugintothesocket.Whenvoltagehasbeen
suppliedtothethermostatforthersttime,youwillseethis
screen. Select language
(Dutch is default)
German and French are also
possible, select using arrow
keys.
Press (OK).Youhave
now set the language.
Setting day and time
Press (DAY)andthe
dayindicatorstartsashing;
Set the correct day using the
arrow keys;
Press (HOUR)andthe
hourindicatorstartsashing;
Set the correct hour using
the arrow keys;
Press (MIN)andthemi-
nuteindicatorstartsashing;
Set the correct time using the
arrow keys;
Press the menu key
and the adjusted time has
been set.
After these settings the thermostat will work immediately in
accordance with clock program 1 for heating (chapter 4.3
refers)andtheComfortsetting‘AAN’(ON)forthehotwater
input (chapter 5.2 refers). Refer to chapters 3, 4 and 5.2 for
any adjustments of these factory settings.
Refer also to chapter 5.7, setting the correct day and time.

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3. Manual mode
3.1 Activating manual mode 12
3.2 Manual thermostat mode 13
3.1 Activating manual mode
Youcanalsousethisthermostatwithouttheclockprogram
being switched on.
No clock bar = manual mode
If you do not see a clock bar
on the screen, then proceed to
chapter 3.2.
Clock bar visible = clock pro-
gram active (automatic).
Whenyoudoseetheclock
bar on the screen, then please
activate manual mode.
Youcanactivatemanual
modeasfollows:
Press the menu key :
Press (CH);
Press (ON);
Press the menu key .
The thermostat has now been set to manual mode. Continue
with chapter 3.2

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actual room temperature
3.2 Manual mode thermostat
(clock program not activated)
Oncethethermostathasbeensettomanualmode(3.1
refers)youcanchangetherequiredtemperatureasfollows:
The standard screen will
display the current room
temperature.
Press an arrow key once
and the set required
temperature will start
ashing.
Increase or decrease the
set temperature using
the arrow keys and the
new required value you
see displayed will be set
instantly.
The temperature can be
adjusted by 0.5°C at a
time.
After 6 seconds or after pressing the menu key ,thea-
shing will stop and you will see the current room temperature
again.
Chapter 5.8 refers to temperature setting recommendations.
temperature set

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4. Clock program central
heating
4.1 Activating central heating’s clock program 14
4.2 Set the three required room temperatures 15
4.3 Select a pre-programmed weekly program 17
4.4 Amend the weekly program 18
4.5 Adjusting temperature temporarily 23
4.1 Activating clock program for CH
Checkwhethertheclockprogramhasbeenactivated:
Youcanactivatetheclockprogramasfollows:
Clock bar visible = clock pro-
gram active (automatic).
If you do see a clock bar on the
screen, then proceed to chapter
4.2.
No clock bar = manual mode
If you do not see the clock bar
on the screen, then activate the
clockprogramasfollows:
Press the menu key ;
Press (CH);
Press (AUTO);
The thermostat has now been set to automatic mode in accor-
dance with the clock program.
The standard screen now
displays the clock bar.
Continue with chapter 4.2

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4.2 Set the three desired room
temperatures (low – medium – high)
Three temperatures can be selected for the clock program con-
trolling automatic temperatures, every half hour of the day you
can select one of these three temperatures. In the example
below the indicated temperatures represent factory settings.
Thesmallblocksindicatethesettemperatures:
 •Onesmallline=T1(low)
 •Onesmalllineand1smallblockabove=T2(middle)
 •Onesmalllineand2smallblocksabove=T3(high)
Chapter 5.8 refers to temperature setting recommendations.
Youcanadjusttherequiredtemperaturesasfollows:
Press the menu key ;
Press (»);
Press (SET);
Set the required (lowest)
temperature T1 using the
arrow keys.
Thesettemperatureashes
and is set immediately.
Press (»);
Thisclockbardisplaysthefollowing:
-03:00-07:00hour: =T1=15°C(low)
-07:00-08:00hour: =T2=20°C(middle)
-08:00-16:00hour: =T1=15°C(low)
-16:00-23:00hour: =T3=21°C(high)
-23:00-03:00hour: =T1=15°C(low)
factory setting = 15,0°C)

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Set the required (middle)
temperature T2 using the
arrow keys.
Whenyoupress you will
return to the previous screen
(T1);
Made a mistake?
Press the menu key for the starting screen.
Thesettemperatureashes
and is set immediately.
Press (»);
Set the required (highest)
temperature T3 using the
arrow keys.
Press the menu key
to return to the standard
screen.
Continue with chapter 4.3
(factory setting = 20,0°C)
((factory setting = 21,0°C)

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4.3 Select a pre-programmed weekly
program
To make settings easier 5 week programs have been pre-
programmed. Se below (1 to 5 incl.). Here you can select a
program best suited to the week program required in the end.
Chapter 4.4. tells you how the selected program can be further
adjusted.
Thesmallblocksindicatethesettemperatures:
 •Onesmallline=T1(low)
 •Onesmalllineand1smallblockabove=T2(middle)
 •Onesmalllineand2smallblocksabove=T3(high)
The time bar runs from 03.00 hrs at night until 03.00 hrs the
following night. Program 1 is the standard setting.
Whenyouselectprogram1thenpleasecontinueto4.4
Please follow the explanation below should you wish to select
anotherprogram:
Press the menu key ;
Press (»);
Then press (PRG);
Then press (PRE);

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Made a mistake?
Press the menu key for the starting screen.
Using the arrow key to select
one program (no’s 1 to 5).
Followingselectionpress:
(OK): 
Program has been adjusted
or
(CANCEL):
Program not adjusted.
After this the program menu
is displayed again.
Continue with chapter 4.4
4.4 Adjusting the weekly program
Belowpleasendanexampleoffurtheradjustmentofapre-
programmed day (this example refers to week program 1).
The clock bar for Monday displays the standard adjacent
picture.
Supposeyouwishtosetthisdayinthemannershownbelow:
From7:00-16:00hours=T2.
From16:00-24:00hours=T3.
ATTENTION! As a result of the self-learning behaviour the re-
quired temperature is reached at the time set. Refer to chapter
1 for additional information.
Thisclockbardisplaysthefollowing:
-03:00-07:00hour:T1 (e.g.17°C)
-07:00-08:00hour:T2 (e.g.20°C)
-08:00-16:00hour:T1 (e.g.17°C)
-16:00-23:00hour:T3 (e.g.21°C)
-23:00-03:00hour:T1 (e.g.17°C)

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Youcanadjustthedaysettingasfollows:
Whenyouareintheprogrammenu(asshownat*),continue
at*).
If you are not in the program menu;
Press the menu key ;
Press (»);
Press (PRG);
Youarenowintheprogram
menu.
Made a mistake?
Press the menu key for the starting screen.
*)
MA=Monday.
Press (DAY);
By pressing (DAY)repe-
atedly you are going through
the days of the week.
Select Monday (MA) by
pressing continuously
until you see ‘MA’ again.
Press (SET).
Thisclockbardisplaysthefollowing:
-03:00-07:00hour:T1 (e.g.17°C)
-07:00-16:00hour:T2 (e.g.20°C)
-16:00-23:00hour:T3 (e.g.21°C)
-23:00-03:00hour:T1 (e.g.17°C)

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Press ((NONE).
Now,usingthearrowkeys,
you can run through the time
bar without the temperature
changing.
Use the arrow key to proceed
to 8.00 hours;
Press (SET);
Press (T2);
Use the key to run
through the time bar until
16:00hoursappearsonthe
screen.
The small blocks which are
nolongerashinghavebeen
set,i.e.for7:00to16:00
hours inclusive T2 has been
set.
Made a mistake?
Didyougotoofarwhenchangingthetemperature?Youcan
correct this as follows.
Press (SET) and select the required temperature.
(T1= ;T2= andT3= )
Return using or and the temperature has been set
differently again.
Press (SET);
Press (NONE);