Daikin Altherma 3 R F User manual

Operation manual
Daikin Altherma 3 R F English
Operation manual
Daikin Altherma 3 R F
EHVZ04S18EA6V
EHVZ08S18EA6V
EHVZ08S23EA6V
EHVZ08S18EA9W
EHVZ08S23EA9W

Table of contents
Operation manual
2
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Daikin Altherma 3 R F
4P629089-1 – 2020.08
Table of contents
1 About this document 2
2 User safety instructions 2
2.1 General...................................................................................... 3
2.2 Instructions for safe operation ................................................... 3
3 About the system 4
3.1 Components in a typical system layout ..................................... 4
4 Operation 4
4.1 User interface: Overview ........................................................... 4
4.2 Possible screens: Overview ...................................................... 5
4.2.1 Home screen............................................................... 5
4.2.2 Main menu screen ...................................................... 6
4.2.3 Setpoint screen ........................................................... 6
4.2.4 Detailed screen with values ........................................ 7
4.3 Turning operation ON or OFF ................................................... 7
4.3.1 Visual indication .......................................................... 7
4.3.2 To turn ON or OFF...................................................... 7
4.4 Space heating control................................................................ 8
4.4.1 Setting the space operation mode .............................. 8
4.4.2 To change the desired room temperature................... 8
4.4.3 To change the desired leaving water temperature...... 8
4.5 Domestic hot water control........................................................ 8
4.5.1 Reheat mode .............................................................. 8
4.5.2 Scheduled mode ......................................................... 9
4.5.3 Scheduled + reheat mode........................................... 9
4.5.4 Using DHW powerful operation................................... 9
4.6 Advanced usage........................................................................ 9
4.7 Schedule screen: Example........................................................ 10
4.8 Menu structure: Overview user settings .................................... 12
4.9 Installer settings: Tables to be filled in by installer .................... 13
4.9.1 Configuration wizard ................................................... 13
4.9.2 Settings menu ............................................................. 13
5 Energy saving tips 13
6 Maintenance and service 13
6.1 Overview: Maintenance and service ......................................... 13
6.2 To find the contact/helpdesk number ........................................ 14
7 Troubleshooting 14
7.1 To display the help text in case of a malfunction....................... 14
7.2 Symptom: You are feeling too cold (hot) in your living room..... 14
7.3 Symptom: The water at the tap is too cold ................................ 14
7.4 Symptom: Heat pump failure..................................................... 14
7.5 Symptom: The system is making gurgling noises after
commissioning........................................................................... 15
8 Disposal 15
9 Glossary 15
1 About this document
Thank you for purchasing this product. Please:
▪ Read the documentation carefully before operating the user
interface to ensure the best possible performance.
▪ Request the installer to inform you about the settings that he used
to configure your system. Check if he has filled in the installer
settings tables. If not, request him to do so.
▪ Keep the documentation for future reference.
Target audience
Endusers
Documentation set
This document is part of a documentation set. The complete set
consists of:
▪General safety precautions:
▪ Safety instructions that you must read before operating your
system
▪ Format: Paper (in the box of the indoor unit)
▪Operation manual:
▪ Quick guide for basic usage
▪ Format: Paper (in the box of the indoor unit)
▪User reference guide:
▪ Detailed step-by-step instructions and background information
for basic and advanced usage
▪ Format: Digital files on http://www.daikineurope.com/support-
and-manuals/product-information/
Latest revisions of the supplied documentation may be available on
the regional Daikin website or via your installer.
The original documentation is written in English. All other languages
are translations.
Breadcrumbs
Breadcrumbs (example: [4.3]) help you to locate where you are in
the menu structure of the user interface.
1To enable the breadcrumbs: In the home screen or
main menu screen, press the help button. The
breadcrumbs appear in the top left corner of the
screen.
2To disable the breadcrumbs: Press the help button
again.
This document also mentions these breadcrumbs. Example:
1Go to [4.3]: Space heating/cooling > Operation
range.
This means:
1Starting from the home screen, turn the left dial and
go to Space heating/cooling.
4
Space heating/cooling
2Press the left dial to enter the submenu.
3Turn the left dial and go to Operation range.
Operation range
4.3
4Press the left dial to enter the submenu.
2 User safety instructions
Always observe the following safety instructions and regulations.

2 User safety instructions
Operation manual
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2.1 General
WARNING
If you are NOT sure how to operate the
unit, contact your installer.
WARNING
Children aged from 8 years and above
and persons with reduced physical,
sensory or mental capabilities or lack
of experience and knowledge can only
use this appliance if they have been
given supervision or instruction
concerning the use of the appliance by
a person responsible for their safety.
Children MUST NOT play with the
appliance.
Cleaning and user maintenance MUST
NOT be carried out by children without
supervision.
WARNING
To prevent electrical shocks or fire:
▪ Do NOT rinse the unit.
▪ Do NOT operate the unit with wet
hands.
▪ Do NOT place any objects containing
water on the unit.
CAUTION
▪ Do NOT place any objects or
equipment on top of the unit.
▪ Do NOT sit, climb or stand on the
unit.
▪ Units are marked with the following symbol:
This means that electrical and electronic products may NOT be
mixed with unsorted household waste. Do NOT try to dismantle
the system yourself: the dismantling of the system, treatment of
the refrigerant, of oil and of other parts must be done by an
authorized installer and must comply with applicable legislation.
Units must be treated at a specialized treatment facility for reuse,
recycling and recovery. By ensuring this product is disposed of
correctly, you will help to prevent potential negative consequences
for the environment and human health. For more information,
contact your installer or local authority.
▪ Batteries are marked with the following symbol:
This means that the batteries may NOT be mixed with unsorted
household waste. If a chemical symbol is printed beneath the
symbol, this chemical symbol means that the battery contains a
heavy metal above a certain concentration.
Possible chemical symbols are: Pb: lead (>0.004%).
Waste batteries must be treated at a specialized treatment facility
for reuse. By ensuring waste batteries are disposed of correctly,
you will help to prevent potential negative consequences for the
environment and human health.
2.2 Instructions for safe operation
NOTICE
Room frost protection. Even if you turn OFF space
heating/cooling operation ([C.2]: Operation > Space
heating/cooling), room frost protection –if enabled– will
remain active.
NOTICE
Water pipe freeze prevention. Even if you turn OFF
space heating/cooling operation ([C.2]: Operation >
Space heating/cooling), water pipe freeze prevention –
if enabled– will remain active.
NOTICE
Disinfection mode. Even if you turn OFF tank heating
operation ([C.3]: Operation > Tank), disinfection mode will
remain active. However, if you turn it OFF while
disinfection is running, an AH error occurs.
NOTICE
Applicable legislation on fluorinated greenhouse gases
requires that the refrigerant charge of the unit is indicated
both in weight and CO2 equivalent.
Formula to calculate the quantity in CO2 equivalent
tonnes: GWP value of the refrigerant × total refrigerant
charge [in kg] / 1000
Please contact your installer for more information.
WARNING
The appliance shall be stored in a room without
continuously operating ignition sources (example: open
flames, an operating gas appliance or an operating electric
heater).
WARNING: FLAMMABLE MATERIAL
The refrigerant inside this unit is mildly flammable.
WARNING
The refrigerant inside the unit is mildly flammable, but
normally does NOT leak. If the refrigerant leaks in the
room and comes in contact with fire from a burner, a
heater, or a cooker, this may result in fire, or the formation
of a harmful gas.
Turn off any combustible heating devices, ventilate the
room, and contact the dealer where you purchased the
unit.
Do NOT use the unit until a service person confirms that
the part from which the refrigerant leaked has been
repaired.

3 About the system
Operation manual
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WARNING
▪ Do NOT pierce or burn refrigerant cycle parts.
▪ Do NOT use cleaning materials or means to accelerate
the defrosting process other than those recommended
by the manufacturer.
▪ Be aware that the refrigerant inside the system is
odourless.
WARNING
Air purging heat emitters or collectors. Before you
purge air from heat emitters or collectors, check if or
is displayed on the home screen of the user interface.
▪ If not, you can purge air immediately.
▪ If yes, make sure that the room where you want to
purge air is sufficiently ventilated. Reason: Refrigerant
might leak into the water circuit, and subsequently into
the room when you purge air from the heat emitters or
collectors.
NOTICE
Do NOT try to dismantle the system yourself: dismantling
of the system, treatment of the refrigerant, oil and other
parts MUST comply with applicable legislation. Units
MUST be treated at a specialised treatment facility for
reuse, recycling and recovery.
3 About the system
Depending on the system layout, the system can:
▪ Heat up a space
▪ Cool down a space (if a heating/cooling heat pump model is
installed)
▪ Produce domestic hot water (if a DHWtank is installed)
3.1 Components in a typical system
layout
d
ab
ce
f
gBC A
AMain zone. Example: Living room.
BAdditional zone. Example: Bedroom.
CTechnical room. Example: Garage.
aOutdoor unit heatpump
bIndoor unit heatpump
cDomestic hot water (DHW) tank
dUser interface of the indoor unit
eUser interface used as room thermostat
fUnderfloor heating
gRadiators, heatpump convectors, or fancoil units
4 Operation
4.1 User interface: Overview
The user interface has the following components:
a
b
c
aStatus indicator
bLCD screen
cDials and buttons
Status indicator
The LEDs of the status indicator light up or blink to show the
operating mode of the unit.
LED Mode Description
Blinking blue Standby The unit is not in operation.
Continuous blue Operation The unit is in operation.
Blinking red Malfunction A malfunction occurred.
See "7.1To display the help text
in case of a malfunction"[414]
for more information.
LCD screen
The LCD screen has a sleeping function. After 15 min of non-
interaction with the user interface, the screen darkens. Pressing any
button or rotating any dial awakens the display.
Dials and buttons
You use the dials and buttons:
▪ To navigate through the screens, menus and settings of the LCD
screen
▪ To set values
a b c d e
Item Description
aLeft dial The LCD shows an arc on the left side of the
display when you can use the left dial.
▪ : Turn, then press the left dial. Navigate
through the menu structure.
▪ : Turn the left dial. Choose a menu item.
▪ : Press the left dial. Confirm your choice
or go to a submenu.
bBack button : Press to go back 1 step in the menu structure.
cHome
button
: Press to go back to the home screen.

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Item Description
dHelp button : Press to show a help text related to the current
page (if available).
eRight dial The LCD shows an arc on the right side of the
display when you can use the right dial.
▪ : Turn, then press the right dial. Change
a value or setting, shown at the right side of the
screen.
▪ : Turn the right dial. Navigate through
the possible values and settings.
▪ : Press the right dial. Confirm your
choice and go to the next menu item.
4.2 Possible screens: Overview
The most common screens are as follows:
+
–
a
OR
b
c
c2
c4
c1
c3
aHome screen
bMain menu screen
cLower level screens:
c1: Setpoint screen
c2: Detailed screen with values
c3: Screen with weather-dependent curve
c4: Screen with schedule
4.2.1 Home screen
Press the button to go back to the home screen. You see an
overview of the unit configuration and the room and setpoint
temperatures. Only symbols applicable for your configuration are
visible on the home screen.
6
1.6
bar
26 Feb 2019
22:19
55
21
35
j
e2
l
k1
k2
k3
45
d
e1
g3
g2
h1
g1
f
i2 i3 i4 h2i1
a2a1e3 b c
Possible actions on this screen
Go through the list of the main menu.
Go to the main menu screen.
Enable/disable breadcrumbs.
Item Description
a Domestic hot water
a1 Domestic hot water
a2
55
Measured tank temperature(a)
b Disinfection / Powerful
Disinfection mode active
Powerful operation mode active
c Emergency
Heat pump failure and system operates in
Emergency mode or heat pump is forced off.
d Current date and time
e Smart energy
e1 Smart energy is available via solar panels or smart
grid.
e2 Smart energy is currently being used for space
heating.
e3 Smart energy is currently being used for domestic
hot water.
f Space operation mode
Heating
g Outdoor / quiet mode
g1
6
Measured outdoor temperature(a)
g2 Quiet mode active
g3 Outdoor unit
h Indoor unit / domestic hot water tank
h1 Floor-standing indoor unit with integrated tank
Wall-mounted indoor unit
Wall-mounted indoor unit with separated tank
h2 Water pressure

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Operation manual
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Item Description
i Main zone
i1 Installed room thermostat type:
Unit operation is decided based on the ambient
temperature of the dedicated Human Comfort
Interface (BRC1HHDA used as room thermostat).
Unit operation is decided by the external room
thermostat (wired or wireless).
— No room thermostat installed or set. Unit operation
is decided based on the leaving water temperature
regardless of the actual room temperature and/or
heating demand of the room.
i2 Installed heat emitter type:
Underfloor heating
Fancoil unit
Radiator
i3
21
Measured room temperature(a)
i4
35
Leaving water temperature setpoint(a)
j Holiday mode
Holiday mode active
k Additional zone
k1 Installed room thermostat type:
Unit operation is decided by the external room
thermostat (wired or wireless).
— No room thermostat installed or set. Unit operation
is decided based on the leaving water temperature
regardless of the actual room temperature and/or
heating demand of the room.
k2 Installed heat emitter type:
Underfloor heating
Fancoil unit
Radiator
k3
45
Leaving water temperature setpoint(a)
l Malfunction
A malfunction occurred.
See "7.1To display the help text in case of a
malfunction"[414] for more information.
(a) If the corresponding operation (for example: space heating) is not
active, the circle is greyed out.
4.2.2 Main menu screen
Starting from the home screen, press ( ) or turn ( ) the
left dial to open the main menu screen. From the main menu, you
can access the different setpoint screens and submenus.
a
2
Main zone
Additional zone
Room
Malfunctioning
Space heating/cooling
aSelected submenu
Possible actions on this screen
Go through the list.
Enter the submenu.
Enable/disable breadcrumbs.
Submenu Description
[0] or
Malfunctioning
Restriction: Only displayed if a
malfunction occurs.
See "7.1To display the help text in
case of a malfunction"[414] for more
information.
[1] Room Restriction: Only displayed if a
dedicated Human Comfort Interface
(BRC1HHDA used as room
thermostat) is controlling the indoor
unit.
Set the room temperature.
[2] Main zone Shows the applicable symbol for your
main zone emitter type.
Set the leaving water temperature for
the main zone.
[3] Additional zone Restriction: Only displayed if there
are two leaving water temperature
zones. Shows the applicable symbol
for your additional zone emitter type.
Set the leaving water temperature for
the additional zone (if present).
[4] Space heating/
cooling
Shows the applicable symbol of your
unit.
Put the unit in heating mode or cooling
mode. You cannot change the mode
on heating only models.
[5] Tank Set the domestic hot water tank
temperature.
[7] User settings Gives access to user settings such as
holiday mode and quiet mode.
[8] Information Displays data and information about
the indoor unit.
[9] Installer
settings
Restriction: Only for the installer.
Gives access to advanced settings.
[A] Commissioning Restriction: Only for the installer.
Perform tests and maintenance.
[B] User profile Change the active user profile.
[C] Operation Turn heating/cooling functionality and
domestic hot water preparation on or
off.
[D] Wireless
gateway
Restriction: Only displayed if a
wireless LAN (WLAN) is installed.
Contains settings needed when
configuring the Daikin Residential
Controller app.
4.2.3 Setpoint screen
The setpoint screen is displayed for screens describing system
components that need a setpoint value.
Examples
[1] Room temperature screen
+
–
21°C
1
Room
[2] Main zone screen
+
–
35°C
2
Main zone

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[3] Additional zone screen
+
–
45°C
3
Additional zone
[5] Tank temperature screen
+
–
50°C
5
Tank
Explanation
a1
d
+
–
d
ed
e
c
a2
b1
b2
Possible actions on this screen
Go through the list of the submenu.
Go to the submenu.
Adjust and automatically apply the desired
temperature.
Item Description
Minimum temperature limit a1 Fixed by the unit
a2 Restricted by the installer
Maximum temperature limit b1 Fixed by the unit
b2 Restricted by the installer
Current temperature cMeasured by the unit
Desired temperature dTurn the right dial to
increase/decrease.
Submenu eTurn or press the left dial to
go to the submenu.
4.2.4 Detailed screen with values
Example:
a bc
a bc
7.2.1
Time/date
Hours 11
30
Minutes
aSettings
bValues
cSelected setting and value
Possible actions on this screen
Go through the list of settings.
Change the value.
Go to the next setting.
Confirm changes and proceed.
4.3 Turning operation ON or OFF
4.3.1 Visual indication
Certain functionalities of the unit can be enabled or disabled
separately. If a functionality is disabled, the corresponding
temperature icon in the home screen will be greyed out.
Room temperature control
1.6
bar
55
21
35
45
a
1.6
bar
55
21
35
45
b
aRoom temperature control ON
bRoom temperature control OFF
Space heating/cooling operation
1.6
bar
55
21
35
45
c
1.6
bar
55
21
35
45
d
cSpace heating/cooling operation ON
dSpace heating/cooling operation OFF
Tank heating operation
1.6
bar
55
21
35
45
e
1.6
bar
55
21
35
45
f
eTank heating operation ON
fTank heating operation OFF
4.3.2 To turn ON or OFF
Room temperature control
1Go to [C.1]: Operation > Room.
Operation
Room
Space heating/cooling On
On
C.1
2Set operation to On or Off.
Space heating/cooling operation
NOTICE
Room frost protection. Even if you turn OFF space
heating/cooling operation ([C.2]: Operation > Space
heating/cooling), room frost protection –if enabled– will
remain active.

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NOTICE
Water pipe freeze prevention. Even if you turn OFF
space heating/cooling operation ([C.2]: Operation >
Space heating/cooling), water pipe freeze prevention –
if enabled– will remain active.
1Go to [C.2]: Operation > Space heating/cooling.
Operation
Space heating/cooling
Tank Off
On
On
Room
C.2
2Set operation to On or Off.
Tank heating operation
NOTICE
Disinfection mode. Even if you turn OFF tank heating
operation ([C.3]: Operation > Tank), disinfection mode will
remain active. However, if you turn it OFF while
disinfection is running, an AH error occurs.
1Go to [C.3]: Operation > Tank.
Operation
Tank Off
On
Space heating/cooling
C.3
2Set operation to On or Off.
4.4 Space heating control
4.4.1 Setting the space operation mode
About space operation modes
This unit is a heating only model. The system can heat up a space,
but NOT cool down a space.
4.4.2 To change the desired room temperature
During room temperature control, you can use the room temperature
setpoint screen to read out and adjust the desired room temperature.
1Go to [1]: Room.
Room
1
2Adjust the desired room temperature.
+
–
21°C
1
a b
Room
a Actual room temperature
b Desired room temperature
If scheduling is on after changing the desired room temperature
▪ The temperature will stay the same as long as there is no
scheduled action.
▪ The desired room temperature will return to its scheduled value
whenever a scheduled action occurs.
You can avoid scheduled behaviour by (temporarily) turning off
scheduling.
To turn off room temperature scheduling
1Go to [1.1]: Room > Schedule.
2Select No.
4.4.3 To change the desired leaving water
temperature
INFORMATION
The leaving water is the water that is sent to the heat
emitters. The desired leaving water temperature is set by
your installer in accordance with the heat emitter type.
Only adjust the leaving water temperature settings in case
of problems.
You can use the leaving water temperature setpoint screen to read
out and adjust the desired leaving water temperature.
1Go to [2]: Main zone or [3]: Additional zone.
Main zone
2
Additional zone
3
2Adjust the desired leaving water temperature.
+
–
35°C
2
a b
Main zone
+
–
45°C
3
a b
Additional zone
a Actual leaving water temperature
b Desired leaving water temperature
4.5 Domestic hot water control
4.5.1 Reheat mode
In reheat mode the DHW tank continuously heats up to the
temperature shown on the home screen (example: 50°C) when the
temperature drops below a certain value.

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t
60°C
00:00 07:00
50°C
15°C
40°C
14:00 21:00
1
2
3
4
Tt
TtDHWtank temperature
tTime
INFORMATION
When the DHW tank mode is reheat, the risk for capacity
shortage and comfort problem is significant. In case of
frequent reheat operation, space heating function is
regularly interrupted.
4.5.2 Scheduled mode
In scheduled mode the DHWtank produces hot water corresponding
to a schedule. The best time to allow the tank to produce hot water is
at night, because the space heating demand is lower.
Example:
t
60°C
00:00 07:00
50°C
15°C
40°C
14:00 21:00
1
2
34
5
Tt
TtDHWtank temperature
tTime
▪ Initially, the DHW tank temperature is the same as the
temperature of the domestic water entering the DHW tank
(example: 15°C).
▪ At 00:00 the DHWtank is programmed to heat up the water to a
preset value (example: Comfort = 60°C).
▪ During the morning, you consume hot water and the DHW tank
temperature decreases.
▪ At 14:00 the DHWtank is programmed to heat up the water to a
preset value (example: Eco = 50°C). Hot water is available again.
▪ During the afternoon and evening, you consume hot water again
and the DHWtank temperature decreases again.
▪ At 00:00 the next day, the cycle repeats.
4.5.3 Scheduled + reheat mode
In scheduled + reheat mode, the domestic hot water control is the
same as in scheduled mode. However, when the DHW tank
temperature drops below a preset value (=reheat tank temperature –
hysteresis value; example: 35°C), the DHW tank heats up until it
reaches the reheat set point (example: 45°C). This ensures that a
minimum amount of hot water is available at all times.
Example:
t
Tt
60°C
00:00 07:00
50°C
45°C
15°C
14:00 21:00
35°C
1
24
5
3
TtDomestic hot water tank temperature
tTime
4.5.4 Using DHW powerful operation
About powerful operation
Powerful operation allows the domestic hot water to be heated by
the backup heater or booster heater. Use this mode on days when
there is more hot water usage than usual.
To check if powerful operation is active
If is displayed on the home screen, powerful operation is active.
Activate or deactivate Powerful operation as follows:
1Go to [5.1]: Tank > Powerful operation
2Turn powerful operation Off or On.
Usage example: You immediately need more hot water
You are in the following situation:
▪ You already consumed most of your domestic hot water.
▪ You cannot wait for the next scheduled action to heat up the
domestic hot water tank.
Then you can activate powerful operation. The domestic hot water
tank will start heating up the water to the Comfort temperature.
INFORMATION
When powerful operation is active, the risk of space
heating and capacity shortage comfort problems is
significant. In case of frequent domestic hot water
operation, frequent and long space heating interruptions
will happen.
4.6 Advanced usage
The amount of information you can read out and edit in the menu
structure depends on your user permission level:
▪User: Standard mode
▪Advanced user: You can read out and edit more information
To change the user permission level
You can change the user permission level as follows:
1Go to [B]: User profile.
User profile
B
2Enter the applicable pin code for the user permission
level.
—
▪ Browse through the list of digits and change the
selected digit.
▪ Move the cursor from left to right.
▪ Confirm the pin code and proceed.

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Operation manual
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User pin code
The User pin code is 0000.
0000
User
Advanced user pin code
The Advanced user pin code is 1234. Additional menu items for the
user are now visible.
1234
Advanced user
4.7 Schedule screen: Example
This example shows how to set a room temperature schedule in
heating mode for the main zone.
INFORMATION
The procedures to program other schedules are similar.
To program the schedule: overview
Example: You want to program the following schedule:
Mon
Sat
Wed
Fri
Thu
Tue
Sun
User defined 1
Prerequisite: The room temperature schedule is only available if
room thermostat control is active. If leaving water temperature
control is active, you can program the main zone schedule instead.
1Go to the schedule.
2(optional) Clear the content of the whole week schedule or the
content of a selected day schedule.
3Program the schedule for Monday.
4Copy the schedule to the other weekdays.
5Program the schedule for Saturday and copy it to Sunday.
6Give the schedule a name.
To go to the schedule
1Go to [1.1]: Room > Schedule.
2Set scheduling to Yes.
3Go to [1.2]: Room > Heating schedule.
To clear the content of the week schedule
1Select the name of the current schedule.
Mon
Sat
Wed
Fri
Thu
Tue
Sun
User defined 1
2Select Delete.
Delete
Rename
Select
3Select OK to confirm.
To clear the content of a day schedule
1Select the day of which you want to clear the
content. For example Friday
Mon
Sat
Wed
Fri
Thu
Tue
Sun
User defined 1
C
2Select Delete.
Delete
Edit
Copy
3Select OK to confirm.
To program the schedule for Monday
1Select Monday.
Mon
Sat
Wed
Fri
Thu
Tue
Sun
User defined 1
2Select Edit.
Delete
Edit
Copy
3Use the left dial to select an entry and edit the entry
with the right dial. You can program up to 6 actions
each day. On the bar, a high temperature has a
darker colour than a low temperature.
0
6:00
8:30
17:30
20°C
18°C
22:00
--:--
18°C
--
21°C
12 24
Mon
Note: To clear an action, set its time as the time of
the previous action.
4Confirm the changes.
Result: The schedule for Monday is defined. The
value of the last action is valid until the next
programmed action. In this example, Monday is the
first day you programmed. Thus, the last
programmed action is valid up to the first action of
next Monday.