Daikin EHVH04SU18CB6W Installation manual

Operation manual
Daikin Altherma – Low temperature split English
Operation manual
Daikin Altherma – Low temperature split
EHVH04SU18CB6W
EHVH08SU18CB6W
EHVH08SU26CB6W
EHVH11SU26CB6W
EHVH16SU26CB6W

Table of contents
Operation manual
2
EHVH04~16SU18+26CB6W
Daikin Altherma – Low temperature split
4P449982-1 – 2016.06
Table of contents
1 About this document 2
2 About the system 3
2.1 Components in a typical system layout ..................................... 3
3 Operation 3
3.1 Overview: Operation.................................................................. 3
3.2 The user interface at a glance................................................... 3
3.2.1 Buttons........................................................................ 3
3.2.2 Status icons ................................................................ 4
3.3 Space heating control................................................................ 4
3.3.1 Setting the space operation mode .............................. 4
3.3.2 Room thermostat control - Using the room
temperature home page.............................................. 4
3.3.3 Room thermostat control - Using the leaving water
temperature home pages............................................ 4
3.4 Domestic hot water control........................................................ 5
3.4.1 Reheat mode .............................................................. 5
3.4.2 Scheduled mode ......................................................... 5
3.4.3 Scheduled + reheat mode........................................... 5
3.4.4 Using the DHWtank temperature home page............ 5
3.4.5 Using the DHWtank booster mode ............................ 5
3.5 Advanced usage........................................................................ 6
3.5.1 About changing the user permission level .................. 6
3.6 Schedules: Example.................................................................. 6
3.7 Menu structure: Overview user settings .................................... 7
3.8 Installer settings: Tables to be filled in by installer .................... 8
3.8.1 Quick wizard ............................................................... 8
3.8.2 Space heating control ................................................. 8
3.8.3 Domestic hot water control [A.4] ................................. 8
3.8.4 Contact/helpdesk number [6.3.2]................................ 8
4 Energy saving tips 9
5 Maintenance and service 9
5.1 Overview: Maintenance and service ......................................... 9
5.2 To find the contact/helpdesk number ........................................ 9
6 Troubleshooting 10
6.1 Symptom: You are feeling too cold (hot) in your living room..... 10
6.2 Symptom: The water at the tap is too cold ................................ 10
6.3 Symptom: Heat pump failure..................................................... 10
7 Glossary 10
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.
Available screens
Depending on your system layout and installer configuration, not all
screens in this document may be available on your user interface.
Breadcrumbs
1
20.0°C >
18.0°C >
7.4.1.1 Room temperature
Comfort (heating)
Eco (heating)
Select Scroll
Breadcrumbs help you to locate where you are in the menu structure
of the user interface. This document also mentions these
breadcrumbs.
Example: Go to [7.4.1.1]: > User settings > Preset values >
Room temperature > Comfort (heating)

2 About the system
Operation manual
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EHVH04~16SU18+26CB6W
Daikin Altherma – Low temperature split
4P449982-1 – 2016.06
2 About the system
Depending on the system layout, the system can:
▪ Heat up a space
▪ Produce domestic hot water
2.1 Components in a typical system
layout
d
a b 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 at the indoor unit
eUser interface in the living room, used as room thermostat
fUnderfloor heating
gHeatpump convectors or fan coil units
3 Operation
3.1 Overview: Operation
You can operate the system via the user interface. This part
describes how to use the user interface:
Part Description
At a glance ▪ Buttons
▪ Status icons
Space heating control How to control space heating:
▪ Setting the space operation mode
▪ Controlling the temperature
Domestic hot water
control
How to control domestic hot water:
▪ Reheat mode
▪ Scheduled mode
▪ Scheduled + reheat mode
Schedules How to select and program schedules
Menu structure Overview of menu structure
Installer settings table Overview of installer settings
3.2 The user interface at a glance
3.2.1 Buttons
a
ef
b
d
c
a HOME PAGES
▪ Switches between home pages (when you are on a home
page).
▪ Goes to the default home page (when you are in the menu
structure).
b MALFUNCTION INFORMATION
If a malfunction occurs, is displayed on the home pages.
Press to display more information about the malfunction.
c ON/OFF
Turns ON or OFF one of the controls (room temperature,
leaving water temperature, DHWtank temperature).
d MENU STRUCTURE/BACK
▪ Opens the menu structure (when you are on a home
page).
▪ Goes up a level (when you are navigating through the
menu structure).
▪ Goes back 1step (example: when you are programming a
schedule in the menu structure).
e   NAVIGATING/CHANGING SETTINGS
▪ Navigates the cursor on the display.
▪ Navigates through the menu structure.
▪ Changes settings.
▪ Selects a mode.
f OK
▪ Confirms a selection.
▪ Enters a submenu in the menu structure.
▪ Switches between displaying actual and desired values, or
between displaying actual and offset values (if applicable)
on the home pages.
▪ Goes to the next step (when you are programming a
schedule in the menu structure).
▪ Enables you to activate or deactivate button lock if pressed
for more than 5seconds on a home page.
▪ Enables you to activate or deactivate a function lock if
pressed for more than 5seconds in the main menu of the
menu structure.
INFORMATION
If you press or while changing settings, the changes
will NOT be applied.

3 Operation
Operation manual
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3.2.2 Status icons
Icon Description
Space operation mode = Heating.
Not available.
Unit is operating.
Desired room temperature = preset value (Comfort;
daytime).
Desired room temperature = preset value (Eco;
nighttime).
▪ On the room temperature home page: Desired
room temperature = according to the selected
schedule.
▪ On the DHW tank temperature home page:
DHWtank mode = Scheduled mode.
DHWtank mode = Reheat mode.
DHWtank mode = Scheduled + reheat mode.
Domestic hot water operation.
Actual temperature.
Desired temperature.
At the next scheduled action, the desired temperature
will increase.
At the next scheduled action, the desired temperature
will NOT change.
At the next scheduled action, the desired temperature
will decrease.
The preset value (Comfort or Eco) or scheduled value
is temporarily overruled.
The DHWtank booster mode is active or ready to be
activated.
Quiet mode is active.
Holiday mode is active or ready to be activated.
Button lock mode and/or function lock mode is active.
An external heat source is active. Example: Gas
burner.
The disinfection mode is active.
A malfunction occured. Press to display more
information about the malfunction.
Weather-dependent mode is active.
User permission level = Installer.
Defrost/oil return mode is active.
Hot start mode is active.
Emergency operation is active.
3.3 Space heating control
3.3.1 Setting the space operation mode
About space operation modes
The heat pump is a heating only model. The system can heat up a
space, but NOT cool down a space.
3.3.2 Room thermostat control - Using the
room temperature home page
Typical room temperature home pages
Depending on the user profile, the user interface gives you either a
basic or a detailed home page. To set the user profile, refer to
Configuring user profile and home pages in the user reference
guide.
User profile = Basic User profile = Detailed
15:20
20.0°C
Mon
Room
Actual temperature
15:20
20.0°C
17:30
Actual temperature
Room
Scheduled
Mon
Tue
To read out the actual and desired room
temperature
1Go to the room temperature home page (Room).
Result: You can read out the actual temperature.
20.0°C
Actual temperature
2Press .
Result: You can read out the desired temperature.
22.0°C
Desired temperature
To temporarily overrule the room temperature
schedule
1Go to the room temperature home page (Room).
2Use or to adjust the temperature.
To change the mode from scheduled to preset
value
Prerequisite: User profile = Detailed.
1Go to the room temperature home page (Room).
2Press or to select a preset value ( or ).
Result: The mode will return to Scheduled according to the overrule
period.
To set the overrule period
Prerequisite: You switched the permission level to Advanced end
user.
1Go to [7.2]: > User settings > Temperature lock.
2Select a value and press :
▪ Permanent
▪ hours (2, 4, 6, 8)
3.3.3 Room thermostat control - Using the
leaving water temperature home pages
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.
Example: Underfloor heating is designed for lower leaving
water temperature than radiators and heat pump
convectors and/or fan coil units. You only have to adjust
leaving water temperature settings in case of problems.
For more information about the leaving water temperature, see the
user reference guide.

3 Operation
Operation manual
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4P449982-1 – 2016.06
3.4 Domestic hot water control
CAUTION
Only for EHVH_SU_CB6W models.
When using the domestic hot water tank to produce hot
water, do NOT turn OFF the heat pump. Reason: the
electrical backup heater from the space heating circuit is
used during disinfection of the domestic hot water tank.
3.4.1 Reheat mode
In reheat mode ( ),the DHW tank continuously heats up to the
temperature shown on the DHW tank temperature home page
(example: 50°C).
t
60°C
00:00 07:00
50°C
15°C
40°C
14:00 21:00
1234
Tt
TtDHWtank temperature
tTime
INFORMATION
There is a risk of space heating capacity shortage/comfort
problem (in case of frequent domestic hot water operation,
frequent and long space heating interruption will happen)
when selecting [6‑0D]=0 ([A.4.1] Domestic hot water
Type=Reheat only).
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.
3.4.2 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
12345
Tt
TtDHWtank temperature
tTime
3.4.3 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
1245
3
TtDHWtank temperature
tTime
60°C Storage comfort
50°C Storage eco
45°C Reheat
35°C Reheat tank temperature–hysteresis value
3.4.4 Using the DHWtank temperature home
page
Typical DHWtank temperature home pages
Depending on the user profile, the user interface gives you either a
basic or a detailed home page. The examples in the illustrations
below are in DHWtank mode = Scheduled.
User profile = Basic User profile = Detailed
15:20
60°C
Storage comfort
Tank
Mon
15:20
60°C
00:00
Mon
Tue
Tank
Storage comfort
To read out and adjust the desired reheat temperature (in
scheduled and reheat mode)
1Go to [7.4.3.3]: > User settings > Preset values > Tank
temperature > Reheat.
Result: You can read out the desired reheat temperature.
2Press or to adjust.
To read out and overrule the active or next scheduled desired
temperature (in scheduled mode or scheduled + reheat mode)
1Go to the DHWtank temperature home page (Tank).
Result:
60°C
is displayed.
2Press or to overrule. Note: If the desired temperature is
weather dependent, you cannot change it on the home page.
3.4.5 Using the DHWtank booster mode
To activate the DHWtank booster mode (user profile = Basic)
1Go to the DHWtank temperature home page (Tank).
2Press for more than 5seconds.
To activate the DHWtank booster mode (user profile = Detailed)
1Go to the DHWtank temperature home page (Tank).
2Press to select .

3 Operation
Operation manual
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4P449982-1 – 2016.06
3.5 Advanced usage
3.5.1 About changing the user permission level
The amount of information you can read out in the menu structure
depends on your user permission level:
▪ End user (= default)
▪ Adv. end user: You can read out more information.
To set the user permission level to Advanced end user
1Go to the main menu or any of its submenus: .
2Press for more than 4seconds.
Result: The user permission level switches to Adv. end user.
Additional information is displayed and "+" is added to the menu title.
The user permission level will stay in Adv. end user until set
otherwise.
To set the user permission level to End user
1Press for more than 4 seconds.
Result: The user permission level switches to End user. The user
interface will return to the default home screen.
3.6 Schedules: Example
INFORMATION
The procedures to program other schedules are similar.
In this example:
▪ Room temperature schedule in heating mode
▪ Monday = Tuesday = Wednesday = Thursday = Friday
▪ Saturday = Sunday
To program the schedule
1Go to [7.3.1.1]: > User settings > Set schedules > Room
temp. > Set heating schedule.
2Select Empty and press .
3Program the schedule for Monday. See below for more details.
4Copy from Monday to Tuesday, Wednesday, Thursday and
Friday. See below for more details.
5Program the schedule for Saturday.
6Copy from Saturday to Sunday.
7Save the schedule and give it a name. See below for more
details.
To program the schedule for Monday
1Use and to select Monday.
2Press to enter the schedule for Monday.
3Program the schedule for Monday:
▪ Use and to select an entry.
▪ Use and to change the value of an entry.
To copy from one day to another
1Select the day from which you want to copy and press .
Example: Monday.
2Select Copy day and press .
3Set the days you want to copy to Yes and press . Example:
Tuesday = Yes, Wednesday = Yes, Thursday = Yes and Friday
= Yes.
To save the schedule
1Press , select Save schedule and press .
2Select User defined 1, User defined 2 or User defined 3 and
press .
3Change the name and press . (Only applicable for room
temperature schedules). Example: MyWeekSchedule
To select which schedule you currently want to use
1Go to [5]: > Select schedules.
2Select for which control you want to use a schedule. Example:
[5.1] Room temperature.
3Select for which operation mode you want to use a schedule.
Example: [5.1.1] Heating.
4Select a predefined or user‑defined schedule and press .

3 Operation
Operation manual
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4P449982-1 – 2016.06
3.7 Menu structure: Overview user settings
< >
[1]
[2]
[5]
[6]
[7]
[2]
[6.2]
[6.3]
[6.8]
[7.1]
[7.4]
[7.3]
[3]
[4]
Set time/date
Date
Time
Daylight Saving Time
Clock type
Holiday Holiday
Holiday Holiday
Holiday mode Holiday mode
Home Away
From
Until Until
From
Use day schedule Operation mode
Heating
Quiet mode
Operation mode
Select schedules
Room temperature
LWT main
LWT additional
Tank temperature
Information
Sensor information
Energy metering
Error handling
User permission level
Actuators
Operation modes
Running hours
Version
Energy metering
Consumed elec.
Produced energy
Error information
Error history
Contact/helpdesk number
Version
User interface
Indoor unit
Outdoor unit
User settings
Display
Temperature lock
Set schedules
Preset values
Allowed operation mode
Unit of measurement
Display
Contrast
Backlit LCD time
User profile
Available home pages
Set schedules
Room temp.
LWT main
LWT additional
DHW temp
Booster heater permission
Quiet mode
DHW pump
Preset values
Room temperature
LWT main
Tank temperature
Quiet level
DHW
Set weather dependent
Warning history
[7.7] Set weather dependent
Main
Additional [7.7.1] Main
Set weather-dependent heating
[7.7.2] Additional
Set weather-dependent heating
INFORMATION
Depending on the selected installer settings, settings will
be visible/invisible.

3 Operation
Operation manual
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Daikin Altherma – Low temperature split
4P449982-1 – 2016.06
3.8 Installer settings: Tables to be
filled in by installer
3.8.1 Quick wizard
Setting Default Fill in…
Backup heater configuration (only for unified backup heater)
[A.2.1.5]
BUH type 0 (1P,(1/2))
Forced off contact [A.2.1.6]
Forced off contact 0 (No)
Space heating settings [A.2.1]
Unit control method 2 (RT control)
User interface location 1 (In room)
Number of LWT zones 1 (1 LWT zone)
Pump operation mode 2 (Request)
Domestic hot water settings [A.2.2]
DHW operation Depends on
model
DHW pump 0 (No)
Thermostats [A.2.2]
Contact type main 2 (H/C request)
Contact type add. 2 (H/C request)
External sensor 0 (No)
Digital I/O PCB [A.2.2.6]
Ext. backup heat src 0 (No)
Solar kit 0 (No)
Alarm output 0 (Normally open)
Bottom plate heater 0 (No)
Demand PCB [A.2.2.7]
Demand PCB 0 (No)
Energy metering [A.2.2]
External kWh meter 1 0 (No)
External kWh meter 2 0 (No)
Capacities (energy metering) [A.2.3]
Booster heater 2.4kW
BUH: step 1 3kW
BUH: step 2 3kW
Bottom plate heater 0W
3.8.2 Space heating control
Setting Default Fill in…
Leaving water temperature: Main zone [A.3.1.1]
LWT setpoint mode 1 (WD)
Leaving water temperature: Additional zone [A.3.1.2]
LWT setpoint mode 1 (WD)
Leaving water temperature: Delta T source [A.3.1.3]
Heating 5°C
Leaving water temperature: Modulation [A.3.1.1.5]
Modulated LWT 0 (No)
Leaving water temperature: Emitter type [A.3.1.1.7]
Emitter type 1 (Slow)
3.8.3 Domestic hot water control [A.4]
Setting Default Fill in…
Type 2 (Scheduled
only)
Maximum setpoint 65°C
INFORMATION
There is a risk of space heating capacity shortage/comfort
problem (in case of frequent domestic hot water operation,
frequent and long space heating interruption will happen)
when selecting [6‑0D]=0 ([A.4.1] Domestic hot water
Type=Reheat only).
INFORMATION
When the DHW tank booster mode 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.
3.8.4 Contact/helpdesk number [6.3.2]
Setting Default Fill in…
Contact/helpdesk number —

4 Energy saving tips
Operation manual
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Daikin Altherma – Low temperature split
4P449982-1 – 2016.06
4 Energy saving tips
Tips about room temperature
▪ Make sure the desired room temperature is NEVER too high, but
ALWAYS according to your actual needs. Each saved degree can
save up to 6% of heating costs.
▪ Do NOT increase the desired room temperature to speed up
space heating. The space will NOT heat up faster.
▪ When your system layout contains slow heat emitters (example:
under floor heating), avoid large fluctuation of the desired room
temperature and do NOT let the room temperature drop too low. It
will take more time and energy to heat up the room again.
▪ Use a weekly schedule for your normal space heating needs. If
necessary, you can easily deviate from the schedule:
▪ For shorter periods: You can overrule the scheduled room
temperature. Example: When you have a party, or when you
are leaving for a couple of hours.
▪ For longer periods: You can use the holiday mode. Example:
When you stay at home during your holiday, or when you go
away during your holiday.
Tips about DHWtank temperature
▪ Use a weekly schedule for your normal domestic hot water needs
(only in scheduled mode).
▪ Program to heat up the DHW tank to a preset value (Storage
comfort = higher DHW tank temperature) during the night,
because then space heating demand is lower.
▪ If heating up the DHW tank once at night is not sufficient,
program to additionally heat up the DHWtank to a preset value
(Storage eco = lower DHWtank temperature) during the day.
▪ Make sure the desired DHW tank temperature is NOT too high.
Example: After installation, lower the DHWtank temperature daily
by 1°C and check if you still have enough hot water.
▪ Program to turn ON the domestic hot water pump only during
periods of the day when instant hot water is necessary. Example:
In the morning and evening.
5 Maintenance and service
5.1 Overview: Maintenance and
service
The installer has to perform a yearly maintenance. You can find the
contact/helpdesk number via the user interface.
As enduser, you have to:
▪ Keep the area around the unit clean.
▪ Keep the user interface clean with a soft damp cloth. Do NOT use
any detergents.
▪ Regularly check if the water pressure indicated on the manometer
is above 1bar.
Refrigerant
This product contains fluorinated greenhouse gases. Do NOT vent
gases into the atmosphere.
Refrigerant type: R410A
Global warming potential (GWP) value: 2087.5
NOTICE
In Europe, the greenhouse gas emissions of the total
refrigerant charge in the system (expressed as tonnes
CO2-equivalent) is used to determine the maintenance
intervals. Follow the applicable legislation.
Formula to calculate the greenhouse gas emissions:
GWP value of the refrigerant × Total refrigerant charge [in
kg] / 1000
Please contact your installer for more information.
5.2 To find the contact/helpdesk
number
Prerequisite: You switched the permission level to Advanced end
user.
1Go to [6.3.2]: > Information > Error handling > Contact/
helpdesk number.

6 Troubleshooting
Operation manual
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Daikin Altherma – Low temperature split
4P449982-1 – 2016.06
6 Troubleshooting
6.1 Symptom: You are feeling too cold
(hot) in your living room
Possible cause Corrective action
The desired room temperature is
too low (high).
Increase (decrease) the desired
room temperature.
If the problem recurs daily, do
one of the following:
▪ Increase (decrease) the room
temperature preset value.
▪ Adjust the room temperature
schedule.
The desired room temperature
cannot be reached.
Increase the desired leaving
water temperature in accordance
with the heat emitter type.
6.2 Symptom: The water at the tap is
too cold
Possible cause Corrective action
You ran out of domestic hot
water because of unusual high
consumption.
If you immediately need domestic
hot water, activate the DHWtank
booster mode. However, this
consumes extra energy.
If you can wait, overrule
(increase) the active or next
scheduled desired temperature
so that more hot water will be
produced exceptionally.
If the problems recurs daily, do
one of the following:
▪ Increase the DHW tank
temperature preset value.
▪ Adjust the DHW tank
temperature schedule.
Example: Program to
additionally heat up the
DHW tank to a preset value
(Storage eco = lower tank
temperature) during the day.
The desired DHWtank
temperature is too low.
6.3 Symptom: Heat pump failure
When the heat pump fails to operate, the backup heater and booster
heater can serve as an emergency heater and either automatically
or non-automatically take over the heat load.
▪ When auto emergency is activated and a heat pump failure
occurs:
▪ The backup heater will automatically take over the heat load.
▪ The booster heater will automatically take over the domestic hot
water production.
▪ When auto emergency is not activated and a heat pump failure
occurs, the domestic hot water and space heating operations will
stop and need to be recovered manually. The user interface will
then ask you to confirm whether the backup heater or booster
heater can take over the heat load or not.
When the heat pump fails, will appear on the user interface.
Possible cause Corrective action
Heat pump is damaged. ▪ Press to view a description
of the problem.
▪ Press again.
▪ Select to allow the backup
heater to take over the heat
load.
▪ Call your local dealer to get
the heat pump fixed.
INFORMATION
When the backup heater or booster heater takes over the
heat load, electricity consumption will be considerably
higher.
7 Glossary
DHW = Domestic hot water
Hot water used, in any type of building, for domestic
purposes.
LWT = Leaving water temperature
Water temperature at the water outlet of the heatpump.

4P449982-1 0000000Y
4P449982-1 2016.06
Copyright 2016 Daikin