Daikin EKHVH008BB6V3, EKHVX008BB6V3, EKHVH008BB6WN, EKHVX008BB6WN, EKHVH008BB9WN Operation manuals

OPERATION MANUAL

Daikin Altherma indoor unit

EKHVH008BB6V3
EKHVX008BB6V3

EKHVH008BB6WN
EKHVX008BB6WN
EKHVH008BB9WN
EKHVX008BB9WN

EKHVH008BB6V3 EKHVX008BB6V3
EKHVH008BB6WN EKHVX008BB6WN
EKHVH008BB9WN EKHVX008BB9WN

Daikin Altherma indoor unit

Operation manual

CONTENTS Page

1. Definitions.................................................................................. 1

1.1. Meaning of warnings and symbols................................................. 1

1.2. Meaning of used ter ms .................................................................. 1

3. Introduction................................................................................ 2

3.1. This manual ................................................................................... 2

3.2. General information........................................................................ 2

Heating/cooling units and heating only units.................................. 2

4. Operating the unit ...................................................................... 3

4.1. Introduction .................................................................................... 3

4.2. Operating the digital controller ....................................................... 3

Features and functions................................................................... 3

4.3. Name and function of buttons and icons ........................................ 4

4.4. Setting up the controller ................................................................. 5

Setting the clock............................................................................. 5

Setting the schedule timer ............................................................. 5

4.5. Description of the operation modes ............................................... 5

Space heating operation (h).......................................................... 5

Space cooling operation (c).......................................................... 6

Domestic water heating operation (w).......................................... 6

Quiet mode operation (s) ............................................................ 6

4.6. Controller operations ...................................................................... 6

Manual operation ........................................................................... 6

Schedule timer operation ............................................................... 7

4.7. Programming and consulting the schedule timer ........................... 8

Getting started ............................................................................... 8

Programming.................................................................................. 9

Consulting programmed actions .................................................. 10

Tips and tricks.............................................................................. 11

5. Field settings ........................................................................... 12

5.1. Procedure .................................................................................... 12

Detailed description ..................................................................... 13

Field settings table ....................................................................... 17

6. Maintenance ............................................................................ 19

6.1. Impor tant information regarding the refrigerant used .................. 19

6.2. Maintenance activities .................................................................. 19

6.3. Standstill ...................................................................................... 19

7. Troubleshooting ....................................................................... 19

8. Disposal requirements............................................................. 19

READ THIS MANUAL ATTENTIVELY BEFORE STARTING
UP THE UNIT. DO NOT THROW IT AWAY. KEEP IT IN
YOUR FILES FOR FUTURE REFERENCE.

The English text is the original instruction. Other languages are
translations of the original instructions.

This appliance is not intended for use by persons, including children,
with reduced physical, sensory or mental capabilities, or lack of
experience and knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a person
responsible for their safety.
Children should be supervised to ensure that they do not play with
the appliance.

WARNING

Before operating the unit, make sure the installation has
been carried out correctly by a professional Daikin dealer.

If you feel unsure about operation, contact your Daikin
dealer for advice and information.

1. DEFINITIONS

1.1. Meaning of warnings and symbols

Warnings in this manual are classified according to their severity and
probability of occurrence.

DANGER

Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.

WARNING

Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. It may also
be used to alert against unsafe practices.

NOTICE

Indicates situations that may result in equipment or
property-damage accidents only.

This symbol identifies useful tips or additional information.

Some types of danger are represented by special symbols:

Electric current.

Danger of burning and scalding.

1.2. Meaning of used terms

Installation manual:

Instruction manual specified for a certain product or application,
explaining how to install, configure and maintain it.

Operation manual:

Instruction manual specified for a certain product or application,
explaining how to operate it.

Maintenance instructions:

Instruction manual specified for a certain product or application,
which explains (if relevant) how to install, configure, operate and/or
maintain the product or application.

Dealer:

Sales distributor for products as per the subject of this manual.

Installer:

Technical skilled person who is qualified to install products as per the
subject of this manual.

User:

Person who is owner of the product and/or operates the product.

Service company:

Qualified company which can perform or coordinate the required
service to the unit.

Applicable legislation:

All international, European, national and local directives, laws,
regulations and/or codes which are relevant and applicable for a
certain product or domain.

Operation manual

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EKHVH/X008BB6V3 + EKHVH/X008BB6+9WN

Daikin Altherma indoor unit

4PW64330-1 – 07.2010

Accessories:

Equipment which is delivered with the unit and which needs to be
installed according to instructions in the documentation.

Optional equipment:

Equipment which can optionally be combined to the products as per
the subject of this manual.

Field supply:

Equipment which needs to be installed according to instructions in
this manual, but which are not supplied by Daikin.

2. GENERAL SAFETY PRECAUTIONS

The precautions listed here are divided into the following four types.
They all cover very important topics, so be sure to follow them
carefully.

3. INTRODUCTION

3.1. This manual

This manual describes how to start up and switch off the unit, set
parameters and configure the schedule timer by means of the
controller, maintain the unit and solve operational problems.

3.2. General information

Thank you for purchasing this indoor unit.

The unit is the indoor part of the air to water ERHQ or ERLQ heat
pumps. These units are designed for floor standing indoor
installation. The units can be combined with Daikin fan coil units, floor
heating applications, low temperature radiators, Daikin domestic
water heating applications and solar kit for domestic hot water
applications.

DANGER: ELECTRICAL SHOCK

Switch off all power supply before removing the switchbox
service panel or before making any connections or
touching electrical parts.

Do not touch any switch with wet fingers. Touching a switch
with wet fingers can cause electrical shock. Before
touching electrical parts, turn off all applicable power
supply.

To avoid electric shock, be sure to disconnect the power
supply 1 minute or more before servicing the electrical
parts. Even after 1 minute, always measure the voltage at
the terminals of main circuit capacitors or electrical parts
and, before touching, be sure that those voltages are
50 V DC or less.

When service panels are removed, live parts can easily be
touched by accident. Never leave the unit unattended
during installation or servicing when the service panel is
removed.

DANGER: DO NOT TOUCH PIPING AND INTERNAL
PA RT S

Do not touch the refrigerant piping, water piping or internal
parts during and immediately after operation. The piping
and internal parts may be hot or cold depending on the
working condition of the unit.

Your hand may suffer burns or frostbite if you touch the
piping or internal parts. To avoid injury, give the piping and
internal parts time to return to normal temperature or, if
you must touch them, be sure to wear protective gloves.

WARNING

■ Never directly touch any accidental leaking
refrigerant. This could result in severe wounds caused
by frostbite.

■ Do not touch the refrigerant pipes during and
immediately after operation as the refrigerant pipes
may be hot or cold, depending on the condition of the
refrigerant flowing through the refrigerant piping,
compressor, and other refrigerant cycle parts. Your
hands may suffer burns or frostbite if you touch the
refrigerant pipes. To avoid injury, give the pipes time to
return to normal temperature or, if you must touch
them, be sure to wear proper gloves.

CAUTION

Do not rinse the unit. This may cause electric shocks or
fire.

Heating/cooling units and heating only units

The unit range consists of two main versions: a heating/cooling
(EKHVX) version and a heating only (EKHVH) version.

Both versions are delivered with an integrated backup heater for
additional heating capacity during cold outdoor temperatures. The
backup heater also serves as a backup in case of malfunctioning of
the outdoor unit. The backup heater models are available for a
heating capacity of 6 and 9 kW, and – depending on the heating
capacity – for three different power supply specifications.

Backup heater

Indoor unit model Backup heater capacity

EKHV*008BB6V3 6 kW 1x 230 V

EKHV*008BB6WN 6 kW 3x 400 V

EKHV*008BB9WN 9 kW 3x 400 V

Domestic hot water tank (option)

An optional EKHTS* domestic hot water tank can be connected to
the indoor unit. The EKHTS* domestic hot water tank is available in
two different water capacities: 200 and 260 litre.

Refer to the domestic hot water tank installation manual for further
details.

Solar kit for domestic hot water tank (option)

For information concerning the EKSOLHT solar kit, refer to the
installation manual of that kit.

Digital I/O PCB kit (option)

An optional EKRP1HB digital I/O PCB can be connected to the
indoor unit and allows:

■ remote alarm output,

■ heating/cooling ON/OFF output,

■ bivalent operation (permission signal for the auxiliary boiler).

Refer to the operation manual of the indoor unit and to the installation
manual of the digital I/O PCB for more information.

Refer to the wiring diagram or connection diagram for connecting this
PCB to the unit.

Remote thermostat kit (option)

An optional room thermostat EKRTW or EKRTR can be connected to
the indoor unit. Refer to the installation manual of the room
thermostat for more information.

Connection to a benefit kWh rate power supply

This equipment allows for connection to benefit kWh rate power
supply delivery systems. Refer to "Connection to a benefit kWh rate

power supply" in the installation manual for more details.

nominal voltage

EKHVH/X008BB6V3 + EKHVH/X008BB6+9WN

Daikin Altherma indoor unit

4PW64330-1 – 07.2010

Operation manual

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4. OPERATING THE UNIT

4.1. Introduction

The heat pump system is designed to provide you a comfortable
indoor climate for many years at low energy consumption.

To get the most comfort with the lowest energy consumption out of
your system, it is very important to observe the items listed below.

Defining possible schedule timer actions for each day and filling out
the form at the very end of this manual can help you minimize the
energy consumption. Ask your installer for support if required.

■ Make sure the heat pump system works at the lowest possible
hot water temperature required to heat your house.

To optimize this, make sure the weather dependent set point is
used and configured to match the installation environment.
Refer to "Field settings" on page 12.

■ It is advised to install the room thermostat connected to the
indoor unit. This will prevent excessive space heating and will
stop the outdoor unit and the indoor circulation pump when the
room temperature is above the thermostat set point.

■ Next recommendations only apply to installations with an
optional domestic hot water tank.

■ Make sure the domestic hot water is only heated up to the

domestic hot water temperature you require.
Start with a low domestic hot water temperature set point
(e.g. 45°C), and only increase if you feel that the domestic
hot water supply temperature is not sufficient.

■ If the domestic hot water is not used for two weeks or more, a

quantity of hydrogen gas which is highly flammable may
accumulate in the domestic hot water tank. To dissipate this
gas safely, it is recommended that a hot tap be turned on for
several minutes at a sink, basin, or bath, but not at a
dishwasher, clothes washer or other appliance. During this
procedure there must be no smoking, open flame or any
electrical appliance operating nearby. If hydrogen is
discharged through the tap, it will probably make a sound as
of air escaping.

4.2. Operating the digital controller

Operating the EKHV* unit comes down to operating the digital
controller.

CAUTION

Never let the digital controller get wet. This may cause an
electric shock or fire.

Never press the buttons of the digital controller with a hard,
pointed object. This may damage the digital controller.

Never inspect or service the digital controller yourself, ask
a qualified service person to do this.

Features and functions

The digital controller is a state of the art controller that offers full
control over your installation. It can control a heating/cooling and a
heating only installation.

Both installations are available in multiple versions which vary in
capacity, electrical supply and installed equipment (with an optional
domestic hot water tank without a booster heater).

■ Descriptions in this manual that apply to a specific
installation or that depend on the installed equipment,
are marked with an asterisk (*).

■ Some functions described in this manual may not be
available or should not be available. Ask your installer
or your local dealer for more information on
permission levels.

Basic controller functions

The basic controller functions are:

■ Turning the unit ON/OFF.

■ Operation mode change-over:

- space heating (refer to page 5),

- space cooling (refer to page 6) (*),

- domestic water heating (refer to page 6) (*).

■ Selection of features:

- quiet mode (refer to page 6),

- weather dependent control (refer to page 7).

■ Temperature set point adjustment (refer to page 6).

(*) The functions 'space cooling' and 'domestic water
heating' can only be selected when the corresponding
equipment is installed.

The digital controller supports a power cut off of maximum 2 hours.
When autorestart is enabled (see "Field settings" on page 12) this
allows a power supply shut down of 2 hours without user intervention
(e.g. benefit kWh rate power supply).

Clock function

The clock functions are:

■ 24 hour real time clock,

■ day of the week indicator.

Schedule timer function

The schedule timer function allows the user to schedule the operation
of the installation according to a daily or a weekly program.

Operation manual

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EKHVH/X008BB6V3 + EKHVH/X008BB6+9WN

Daikin Altherma indoor unit

4PW64330-1 – 07.2010

4.3. Name and function of buttons and icons

1173

5 6 248

7

9

12
10

23
22

34
29

27
30

28

1. HEATING/COOLING ON/OFF BUTTON y

The ON/OFF button starts or stops the heating or cooling
function of the unit.

When the unit is connected with an external room thermostat,
this button is not operable and the icon e is shown.

Pressing the ON/OFF button consecutively too many times may
cause malfunction of the system (maximum 20 times per hour).

Remark that pushing the y button has no influence on
the domestic water heating. Domestic water heating is only
switched on or off by means of the

2. OPERATION LED

0

The operation LED is lit during space heating or space cooling
operation. The LED blinks if a malfunction occurs. When the
LED is OFF, space heating or space cooling are inactive while
the other operation modes can still be active.

3. OPERATION MODE ICONS hcws

These icons indicate the current operation mode(s): space
heating (h), space cooling (c), domestic water heating (w) or
quiet mode (s). Within limits, different modes can be combined,
e.g. space heating and domestic water heating. The
corresponding mode icons will be displayed simultaneously.

In a heating only installation, the
If the domestic hot water tank is not installed, the w icon will

never be displayed.

If the solar option is installed and active, the
blinking.

4. EXTERNAL CONTROL ICON

e

This icon indicates that the room thermostat (optional) with
higher priority is controlling your installation. This external room
thermostat can start and stop the space heating/cooling
operation and change the operation mode (heating/cooling).

When the external room thermostat with a higher priority is
connected, the schedule timer for space heating and space
cooling will not function.

When the benefit kWh power rate signal is sent, the centralised
control indication e will flash to indicate that benefit kWh power
rate is active.

5. DAY OF THE WEEK INDICATOR 1234567

This indicator shows the current weekday.

When reading or programming the schedule timer, the indicator
shows the set day.

6. CLOCK DISPLAY

8

The clock display shows the current time.

When reading or programming the schedule timer, the clock
display shows the action time.

2161815

v button.

c icon will never be displayed.

w icon will be

7. SCHEDULE TIMER ICON

p

This icon indicates that the schedule timer is enabled.

8. ACTION ICONS q

These icons indicate the programming actions for each day of
the schedule timer.

9. OFF ICON x

This icon indicates that the OFF action is selected when

4

14
21

19
11

20
13

programming the schedule timer.

10. INSPECTION REQUIRED k and l

These icons indicate that inspection is required on the
installation. Consult your dealer.

11. SET TEMPERATURE DISPLAY 9

The display shows the current space heating/cooling set

25

temperature of the installation.

12. SETTING $

26

33

32

31

Not used. For installation purposes only.

13. NOT AVAILABLE n

This icon is displayed whenever a non-installed option is
addressed or a function is not available.

14. DEFROST/STARTUP MODE ICON d

This icon indicates that the defrost/startup mode is active.

15. COMPRESSOR ICON ç

This icon indicates that the compressor in the outdoor unit of the
installation is active.

16. BACKUP HEATER STEP ONE ( OR STEP TWO §

These icons indicate that the backup heater is operating on low
capacity (() or on high capacity (§). The backup heater
provides extra heating capacity in case of low ambient outdoor
temperature (high heating load).

17. BOOSTER HEATER ICON m

Not applicable for these models

18. PUMP ICON é

This icon indicates that the circulation pump is active.

19. OUTDOOR TEMPERATURE DISPLAY u

When this icon is flashing, the outdoor ambient temperature is
displayed.

20. WEATHER DEPENDENT SET POINT ICON a

This icon indicates that the controller will adapt the temperature
set point automatically, based on the outdoor ambient
temperature.

21. TEMPERATURE ICON

b

This icon is displayed when the water outlet temperature of the
indoor unit, the outdoor ambient temperature and the domestic
hot water tank temperature are shown.

The icon is also displayed when the temperature set point is set
in schedule timer programming mode.

22. TEST OPERATION ICON t

This icon indicates that the unit runs in test mode.

23. FIELD SET CODE ;

This code represents the code from the field set list. Refer to the

"Field settings table" on page 17.

24. ERROR CODE

:

This code refers to the error code list and is for service purposes
only. Refer to the error code list in the installation manual.

25. SPACE HEATING/COOLING BUTTON =

This button allows manual switching between heating or cooling
mode (provided the unit is not a heating only unit).

When the unit is connected with an external room thermostat,
this button is not operable and the icon e is shown.

EKHVH/X008BB6V3 + EKHVH/X008BB6+9WN

Daikin Altherma indoor unit

4PW64330-1 – 07.2010

Operation manual

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26. DOMESTIC WATER HEATING BUTTON v

This button enables or disables storage and reheating of the
domestic water.

This button is not used when the domestic hot water tank is not
installed.

27. WEATHER DEPENDENT SET POINT BUTTON ba

This button enables or disables the weather dependent set point
function which is available in space heating operation only.

If the controller is set in permission level 2 or 3 (refer to "Field

settings" on page 12), the weather dependent set point button

will not be operable.

28. INSPECTION/TEST OPERATION BUTTON z

This button is used for installation purposes and changing field
settings. Refer to "Field settings" on page 12.

29. PROGRAMMING BUTTON <

This multi-purpose button is used to program the controller. The
function of the button depends on the actual status of the
controller or on previous actions carried out by the operator.

30. SCHEDULE TIMER BUTTON

The main function of this multi-purpose button is to
enable/disable the schedule timer.

The button is also used to program the controller. The function of
the button depends on the actual status of the controller or on
previous actions carried out by the operator.

If the controller is set in permission level 3 (refer to "Field

settings" on page 12), the schedule timer button will not be

operable.

31. TIME ADJUST BUTTON pi and pj

These multi-purpose buttons are used to adjust the clock, to
toggle between temperatures (water outlet temperature of the
indoor unit, outdoor ambient temperature and domestic hot
water temperature) and in schedule timer programming mode.

32. TEMPERATURE ADJUST BUTTONS bi and bj

These multi-purpose buttons are used to adjust the current set
point in normal operation mode or in schedule timer
programming mode. In weather dependent set point mode the
buttons are used to adjust the shift value. Finally, the buttons are
also used to select the weekday while setting the clock.

33. DOMESTIC HOT WATER TEMPERATURE ADJUST BUTTONS

wbi and wbj

These buttons are used to adjust the current set storage point of
the domestic hot water temperature.

The buttons are not used when the domestic hot water tank is
not installed.

34. QUIET MODE BUTTON s

This button enables or disables quiet mode.

If the controller is set in permission level 2 or 3 (refer to "Field

settings" on page 12), the quiet mode button will not be

operable.

r/p

4.4. Setting up the controller

After initial installation, the user can set the clock and day of the
week.

The controller is equipped with a schedule timer that enables the user
to schedule operations. Setting the clock and day of the week is
required to be able to use the schedule timer.

Setting the clock

1 Hold down the pr button for 5 seconds.

The clock read-out and the day of week indicator start flashing.

2 Use the pi and pj buttons to adjust the clock.

Each time the pi or pj button is pressed, the time will
increase/decrease by 1 minute. Keeping the pi or pj
button pressed will increase/decrease the time by 10 minutes.

3 Use the bi or bj button to adjust the day of the week.

Each time the bi or bj button is pressed the next or
previous day is displayed.

4 Press the < button to confirm the current set time and day of the

week.

To leave this procedure without saving, press the pr button.
If no button is pressed for 5 minutes the clock and day of the

week will return to their previous setting.

The clock needs to be set manually. Adjust the setting
when switching from summertime to wintertime and vice
versa.

Setting the schedule timer

To set the schedule timer, refer to chapter "Programming and

consulting the schedule timer" on page 8.

4.5. Description of the operation modes

Space heating operation (h)

In this mode, heating will be activated as required by the water
temperature set point. The set point can be set manually (refer to

"Manual operation" on page 6) or weather dependent (refer to
"Selecting weather dependent set point operation (only in heating
mode)" on page 7).

Startup (d)

At the start of a heating operation, the pump is not started until a
certain refrigerant heat exchanger temperature is reached. This
guarantees correct startup of the heat pump. During startup, icon

d is displayed.

Defrost (d)

In space heating operation or heat pump domestic water heating
operation, freezing of the outdoor heat exchanger may occur due to
low outdoor temperature. If this risk occurs, the system goes into
defrost operation. It reverses the cycle and takes heat from the indoor
system to prevent freezing of the outdoor system. After a maximum
of 8 minutes of defrost operation, the system returns to the previous
mode.

Operation manual

5

EKHVH/X008BB6V3 + EKHVH/X008BB6+9WN

Daikin Altherma indoor unit

4PW64330-1 – 07.2010

Space cooling operation (c)

4.6. Controller operations

In this mode, cooling will be activated as required by the water
temperature set point.

■ The space cooling temperature set point can only be
set manually (refer to "Manual operation" on page 6).

■ Switching between space heating and space cooling
operation can only be done by pressing the =
button or by the external room thermostat.

■ Space cooling operation is not possible if the
installation is a "heating only" installation.

Domestic water heating operation (w)

In this mode, the indoor unit will heat up the domestic hot water tank.

There are several modes for heating up the domestic water tank:

1. Storage

• Scheduled
The unit will heat up the domestic water tank starting from a
scheduled time and untill the domestic hot water set point is
reached. Preferally this is done during nighttime when space
heating demand is the lowest (and if applicable, electric
tariffs are low).

• Powerful
The unit will immediately heat up the domestic water tank
untill domestic hot water storage set point upon user request.

2. Reheat

• Scheduled
The unit will heat up the domestic water tank starting from a
scheduled time and untill the reheat set point is reached.
Preferally this is done during the time of day when space
heating demand is lowest.

• Continuous
The unit will continuously heat up the domestic water tank
untill the reheat set point is reached. In this case a balance
with the space heating demand is made, which ever demand
is higher.

■ For purpose and configuration refer to "Field settings"

on page 12.

■ The domestic hot water water temperature set storage
point can only be set manually (refer to "Manual

operation" on page 6).

■ Any domestic water heating operation is impossible
when the domestic hot water tank is not installed.

■ When the w icon is blinking, the domestic hot water is
heating up by the solar kit option and not by the indoor
unit. Refer to installation manual of the EKSOLHT
solar kit.

Quiet mode operation (s)

Quiet mode operation means that the outdoor unit works at reduced
capacity so that the sound produced by the outdoor unit drops. This
implies that the indoor heating and cooling capacity will also drop.
Beware of this when a certain level of heating is required indoors.

Manual operation

In manual operation, the user manually controls the settings of the
installation. The last setting remains active until the user changes it or
until the schedule timer forces another setting (refer to "Schedule

timer operation" on page 7).

As the controller can be used for a wide variety of installations, it is
possible to select a function which is not available on your
installation. In that case the message n will appear.

Switching on and setting space heating (h) and space cooling
(c)

1 Use the = button to select space heating (h) or space cooling

(c).
Icon h or c appears on the display as well as the corresponding

water temperature set point.

2 Use the bi and bj buttons to set the desired water

temperature.

• Temperature range for heating: 25°C to 55°C
The temperature for heating can be set as low as 15°C (see

"Field settings" on page 12). However, the temperature for

heating should only be set lower than 25°C during
commissioning of the installation. When set lower than 25°C,
only the backup heater will operate.
In order to avoid overheating, space heating is not operable
when the outdoor ambient temperature rises above a certain
temperature (as set through field setting [4-02], refer to "Field

settings" on page 12).

• Temperature range for cooling: 5°C to 22°C

The actual operation range depends on the values set on
field setting [9].

These values shall be determined based on the
application.

In heating mode (h), the water temperature set point can
also be weather dependent (icon a is shown).

This means that the controller calculates the water
temperature set point based on the outdoor temperature.

In this case, instead of showing the water temperature set
point, the controller shows the "shift value" which can be
set by the user. This shift value is the temperature
difference between the temperature set point calculated by
the controller and the real set point. E.g. a positive shift
value means that the real temperature set point will be
higher than the calculated set point.

3 Switch on the unit by pushing the

The operation LED 0 lights up.

When the unit is connected to an external room
thermostat, buttons = and y are not operable and the
icon e is shown. In this case, the external room
thermostat switches the unit on or off and determines the
operation mode (space heating or space cooling).

y button.

EKHVH/X008BB6V3 + EKHVH/X008BB6+9WN

Daikin Altherma indoor unit

4PW64330-1 – 07.2010

Operation manual

6