Daikin EKHBH008BA, EKHBX008BA Operation manuals

OPERATION MANUAL

Indoor unit for air to water heat pump system

and options

EKHBH008BA EKHBX008BA

Indoor unit for air to water heat pump system

and options

age

ONTENTS

EKHBH008BA*** EKHBX008BA***

Introduction ..................................................................................... 1

This manual ............................................................................................... 1

General information ................................................................................... 1

Safety considerations ................................................................................ 2

Operating the unit ........................................................................... 2

Introduction ....................................................................................... 2

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

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

Basic controller functions ...................................................................... 3

Clock function........................................................................................ 3

Schedule timer function......................................................................... 3

Name and function of buttons and icons ................................................... 3

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

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

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

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

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

Space cooling operation (c) ................................................................. 5

Domestic water heating operation (w) ................................................. 5

Quiet mode operation (s).................................................................... 5

Controller operations ................................................................................. 5

Manual operation................................................................................... 5

Schedule timer operation ...................................................................... 6

Programming and consulting the schedule timer....................................... 7

Getting started....................................................................................... 7

Programming......................................................................................... 8

Consulting programmed actions............................................................ 9

Tips and tricks ..................................................................................... 10

Field settings ................................................................................... 10

Procedure ................................................................................................ 10

Detailed description ................................................................................. 11

Field settings table................................................................................... 13

Maintenance .................................................................................. 15

Important information regarding the refrigerant used .............................. 15

Maintenance activities ............................................................................. 15

Standstill .................................................................................................. 15

Troubleshooting ............................................................................ 15

Disposal requirements ................................................................. 15

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.

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.

Operation manual

NTRODUCTION

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.

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 wall mounted indoor installation. The units can be combined with Daikin fan coil units, ﬂoor heating applications, low temperature radiators, Daikin domestic water heating applications and Daikin solar kit for domestic hot water applications.

Heating/cooling units and heating only units

The unit range consists of two main versions: a heating/cooling (EKHBX) version and a heating only (EKHBH) 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 3, 6 and 9 kW, and – depending on the heating capacity – for three different power supply speciﬁcations.

Backup heater

Indoor unit model Backup heater capacity

EKHB*008BA3V3 EKHB*008BA6V3 EKHB*008BA6WN EKHB*008BA9WN EKHB*008BA6T1 EKHB*008BA9T1

3 kW 1x 230 V 6 kW 1x 230 V 6 kW 3x 400 V 9 kW 3x 400 V 6 kW 3x 230 V 9 kW 3x 230 V

Domestic hot water tank (option)

An optional EKHW* domestic hot water tank with integrated 3 kW electrical booster heater can be connected to the indoor unit. The domestic hot water tank is available in three sizes: 150, 200 and 300 litre.

Solar kit for domestic hot water tank (option)

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

Remote thermostat kit (option)

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

nominal voltage

Operation manual

Indoor unit for air to water heat pump system and options

EKHBH/X008BA

4PW54184-1

■

Safety considerations

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

Meanings of

DANGER, WARNING, CAUTION

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.

NOTE

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

and

NOTE

symbols.

Danger

Do not touch water pipes during and immediately after operation as the pipes may be hot. Your hand may suffer burns. To avoid injury, give the piping time to return to normal temperature or be sure to wear proper gloves.

Do not touch any switch with wet ﬁngers. Touching a switch with wet ﬁngers can cause electrical shock.

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.

PERATING

NTRODUCTION

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 10.

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.

Make sure the domestic water heating by booster heater only start 1 to 2 hours before you expect domestic hot water usage. In case you only need a lot of domestic hot water in the evening or in the morning, only allow domestic water heating by booster heater during early morning and early evening. Also keep hours with low electricity cost tariffs in mind. To do this, program both the domestic water heating and booster heating schedule timer. Refer to Programming in chapter "Programming and consulting the schedule timer" on

page 7.

■

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.

THE

UNIT

EKHBH/X008BA

Indoor unit for air to water heat pump system and options

4PW54184-1

Operation manual

PERATING

THE

DIGITAL

CONTROLLER

■

Name and function of buttons and icons

■

Operating the EKHB* 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 with 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:

Tu r ning the unit ON/OFF. Operation mode change-over:

- space heating (refer to page 5),

- space cooling (refer to page 5) (*),

- domestic water heating (refer to page 5) (*). Selection of features:

- quiet mode (refer to page 5),

-weather dependent control (refer to page 6). Temperature set point adjustment (refer to page 5).

(*) 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 10) 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.

1173

5 6 248

7 9

12 10

23 22

34 29

27 30

2161815

HEATING/COOLING ON/OFF BUTTON 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

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

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

button.

OPERATION LED 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.

OPERATION MODE ICONS

hcws

These icons indicate the current operation mode(s): space heating ( quiet mode (

), space cooling (

), domestic water heating (

). 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

icon will never be displayed.

icon will

never be displayed. If the solar option is installed and active, the

icon will be

blinking. EXTERNAL CONTROL ICON 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

will ﬂash to indicate that beneﬁt kWh power

rate is active. 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. CLOCK DISPLAY The clock display shows the current time.

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

4 14

21 19 11

20 13

26 33 32 31

) or

Operation manual

Indoor unit for air to water heat pump system and options

EKHBH/X008BA

4PW54184-1

SCHEDULE TIMER ICON This icon indicates that the schedule timer is enabled. ACTION ICONS These icons indicate the programming actions for each day of

the schedule timer. OFF ICON This icon indicates that the OFF action is selected when

programming the schedule timer.

10. INSPECTION REQUIRED

and

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

11. SET TEMPERATURE DISPLAY

The display shows the current space heating/cooling set temperature of the installation.

12. SETTING

Not used. For installation purposes only.

13. NOT AVAILABLE

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

14. DEFROST/STARTUP MODE ICON

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

15. COMPRESSOR ICON

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 This icon indicates that the booster heater is active. The booster

heater provides auxiliary heating for the domestic hot water tank.

The booster heater is located in the domestic hot water tank. The icon is not used when the domestic hot water tank is not

installed.

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

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 13.

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.

26. DOMESTIC WATER HEATING BUTTON v This button enables or disables heating of the domestic water. This button is not used when the domestic hot water tank is not

installed.

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 v button.

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 10), the weather dependent set point button

will not be operable.

28. INSPECTION/TEST OPERATION BUTTON

This button is used for installation purposes and changing ﬁeld settings. Refer to "Field settings" on page 10.

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 r/p 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 10), 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 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

This button enables or disables quiet mode. If the controller is set in permission level 2 or 3 (refer to "Field

settings" on page 10), the quiet mode button will not be

operable.

EKHBH/X008BA

Indoor unit for air to water heat pump system and options

4PW54184-1

Operation manual

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 7.

Description of the operation modes

Domestic water heating operation (w)

In this mode, the indoor unit will heat up the domestic hot water tank by heat pump when the space heating/space cooling operation has reached its temperature set point or heat pump domestic water heating has a higher demand request than space side (depends on dipswitch setting). When necessary and when allowed by the booster heater schedule timer (refer to "Programming quiet mode, booster

heating or domestic water heating" on page 9), the booster heater

provides auxiliary heating for the domestic hot water tank.

■ In order to provide domestic hot water throughout the day, it is advised to keep the domestic water heating operation on continuously.

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

on page 5).

■ 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 EKSOLHW solar kit.

Powerful domestic water heating operation

In the case of urgent need of domestic hot water, the domestic hot water temperature set point can be reached quickly by using the booster heater. Powerful domestic water heating operation is forcing the booster heater to operate until the domestic hot water temperature set point is reached.

This function remains available in solar operation.

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.

Space heating operation (

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

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 space heating operation.

Space cooling operation (c)

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 5).

■ 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.

Controller operations

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 6).

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 10). 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 10).

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

Operation manual

Indoor unit for air to water heat pump system and options

EKHBH/X008BA

4PW54184-1

+ 12 hidden pages