OPERATION MANUAL - Daikin

OPERATION MANUAL

EKHBH008BBEKHBX008BB

Indoor unit and options for air to water heatpump system

EKHBH008BB3V3EKHBH008BB6V3EKHBH008BB6WNEKHBH008BB6T1EKHBH008BB9WNEKHBH008BB9T1

EKHBX008BB3V3EKHBX008BB6V3EKHBX008BB6WNEKHBX008BB6T1EKHBX008BB9WN

CONTENTS Page

1. Definitions.................................................................................. 11.1. Meaning of warnings and symbols................................................. 11.2. Meaning of used terms .................................................................. 2

2. General safety precautions........................................................ 2

3. Introduction................................................................................ 33.1. General information........................................................................ 33.2. Scope of this manual ..................................................................... 3

4. Operating the unit ...................................................................... 44.1. Introduction .................................................................................... 44.2. Operating the digital controller ....................................................... 4

Features and functions................................................................... 4Basic controller functions ............................................................... 4Clock function................................................................................. 4Schedule timer function ................................................................. 4

4.3. Name and function of buttons and icons........................................ 54.4. Setting up the controller ................................................................. 6

Setting the clock............................................................................. 6Setting the schedule timer ............................................................. 6

4.5. Description of the operation modes ............................................... 7Space heating operation (h).......................................................... 7Space cooling operation (c) .......................................................... 7Domestic water heating operation (w) .......................................... 7Powerful domestic water heating operation ................................... 7Quiet mode operation (s) ............................................................ 8

4.6. Controller operations...................................................................... 8Manual operation ........................................................................... 8Schedule timer operation ............................................................... 9

4.7. Programming and consulting the schedule timer ......................... 10Programming................................................................................ 11Consulting programmed actions .................................................. 13Tips and tricks.............................................................................. 13

5. Field settings ........................................................................... 145.1. Procedure .................................................................................... 14

Detailed description ..................................................................... 14Field settings table ....................................................................... 19

6. Maintenance ............................................................................ 226.1. Important information regarding the refrigerant used................... 226.2. Maintenance activities.................................................................. 226.3. Standstill ...................................................................................... 22

7. Troubleshooting ....................................................................... 22

8. Disposal requirements............................................................. 22

Appendix........................................................................................ 23

3. Introduction.............................................................................. 233.1. General information...................................................................... 23

4. Operating the unit .................................................................... 234.1. Introduction .................................................................................. 234.3. Name and function of buttons and icons...................................... 244.5. Description of the operation modes ............................................. 244.6. Controller operations.................................................................... 244.7. Programming and consulting the schedule timer ......................... 25

5. Field settings ........................................................................... 285.1. Procedure .................................................................................... 28

Detailed description ..................................................................... 28

6. Maintenance ............................................................................ 286.3. Standstill ...................................................................................... 28

7. Troubleshooting ....................................................................... 28

The original instructions are written in English. All other languagesare 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 ofexperience and knowledge, unless they have been given supervisionor instruction concerning use of the appliance by a personresponsible for their safety.Children should be supervised to ensure that they do not play withthe appliance.

1. DEFINITIONS

1.1. Meaning of warnings and symbols

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

Some types of danger are represented by special symbols:

EKHBH008BB***EKHBX008BB***

Indoor unit and options for air to water heat pump system Operation manual

CAREFULLY READ THESE INSTRUCTIONS BEFOREOPERATING THE UNIT. THEY WILL TELL YOU HOW TOUSE THE UNIT PROPERLY. KEEP THIS MANUAL IN AHANDY PLACE FOR FUTURE REFERENCE.

WARNING

Before operating the unit, be sure the installation has beencarried out correctly by an installer.

If you feel unsure about operation, contact your installer foradvice and information.

DANGER

Indicates an imminently hazardous situation which, if notavoided, will result in death or serious injury.

WARNING

Indicates a potentially hazardous situation which, if notavoided, could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation which, if notavoided, may result in minor or moderate injury. It may alsobe used to alert against unsafe practices.

NOTICE

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

INFORMATION

This symbol identifies useful tips or additional information.

Electric current.

Danger of burning and scalding.

Operation manual

1EKHBH/X008BB

Indoor unit and options for air to water heat pump system4PW62571-1 – 10.2010

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/ormaintain 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 thesubject 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 requiredservice to the unit.

Applicable legislation:

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

Accessories:

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

Optional equipment:

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

Field supply:

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

2. GENERAL SAFETY PRECAUTIONS

The precautions here, all cover very important topics, so be sure tofollow them carefully.

DANGER: ELECTRICAL SHOCK

Do not touch any switch with wet fingers. Touching a switchwith wet fingers can cause electrical shock. Beforetouching electrical parts, turn off all applicable powersupply.

DANGER: DO NOT TOUCH PIPING AND INTERNALPARTS

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

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

WARNING

■ Never directly touch any accidental leakingrefrigerant. This could result in severe wounds causedby frostbite.

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

CAUTION

Do not rinse the unit. This may cause electric shocks orfire.

EKHBH/X008BBIndoor unit and options for air to water heat pump system4PW62571-1 – 10.2010

Operation manual

2

3. INTRODUCTION

3.1. General information

Thank you for purchasing this indoor unit.

The unit is the indoor part of the air to water ERHQ or ERLQ heatpumps. This unit is designed for wall mounted indoor installation. Theunit can be combined with Daikin fan coil units, floor heatingapplications, low temperature radiators, Daikin domestic waterheating applications and Daikin solar kit for domestic hot waterapplications.

For installations with restricted power supply, the indoor unit isconfigured during the installation to limit the power consumption.

If the restricted power supply condition mode is applicable for yourapplication, pay special attention to domestic water heating modeand schedule timer functions. For more details see "Appendix" onpage 23.

Heating/cooling units and heating only units(1)

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 foradditional heating capacity during low outdoor temperatures. Thebackup heater also serves as a backup in case of malfunctioning ofthe outdoor unit. The backup heater models are available for aheating capacity of 3, 6 and 9 kW, and – depending on the heatingcapacity – for three different power supply specifications.

Domestic hot water tank (option)(2)

An optional domestic hot water tank can be connected to the indoorunit. The domestic hot water tank is available in 2 types:

■ tank with built-in electrical booster heater (EKHW*) in 3 differentsizes: 150, 200 and 300 litre,

■ tank without electrical booster heater (EKHTS) in 2 differentsizes: 200 and 260 litre.

Solar kit for domestic hot water tank (option)

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

Room thermostat kit (option)

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

3.2. Scope of this manual

This manual has been prepared to ensure adequate operation of theunit.

NOTICE

If you feel unsure about this topic, contact your installer foradvice and information.

INFORMATION

All information and settings in the manual are applicable forall applications, except the chapters with following footnoteindication: "When the unit is configured for restricted powersupply condition mode, see "Appendix" on page 23".

NOTICE

Restricted power supply condition mode can only be usedfor a tank with built-in electrical booster heater (EKHW*).

(1) When the unit is configured for restricted power supply condition mode, see "Appendix" on page 23.

Indoor unit model Backup heater capacityBackup heater

nominal voltage

EKHB*008BB3V3 3 kW 1x 230 V

EKHB*008BB6V3 6 kW 1x 230 V

EKHB*008BB6WN 6 kW 3x 400 V

EKHB*008BB9WN 9 kW 3x 400 V

EKHB*008BB6T1 6 kW 3x 230 V

EKHB*008BB9T1 9 kW 3x 230 V


INFORMATION

The solar kit for domestic hot water tank is only applicablefor the tank with built-in electrical booster heater (EKHW*).

INFORMATION

The installation of the indoor unit is described in the indoorunit installation manual.

Operation manual

3EKHBH/X008BB


4. OPERATING THE UNIT

4.1. Introduction(1)

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

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

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

■ Make sure the heat pump system works at the lowest possiblehot water temperature required to heat your house.To optimize this, make sure the weather dependent set point isused and configured to match the installation environment.Refer to "5. Field settings" on page 14.

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

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

■ Make sure the domestic hot water is only heated up to thedomestic 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 domestichot water supply temperature is not sufficient.

■ Only for tank with built-in electrical booster heater (EKHW*):Make sure the domestic water heating by booster heater onlystart 1 to 2 hours before you expect domestic hot waterusage.In case you only need a lot of domestic hot water in theevening or in the morning, only allow domestic water heatingby 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 andbooster heating schedule timer. Refer to Programming inchapter "4.7. Programming and consulting the scheduletimer" on page 10.

■ If the domestic hot water is not used for two weeks or more, aquantity of hydrogen gas which is highly flammable mayaccumulate in the domestic hot water tank. To dissipate thisgas safely, it is recommended that a hot tap be turned on forseveral minutes at a sink, basin, or bath, but not at adishwasher, clothes washer or other appliance. During thisprocedure there must be no smoking, open flame or anyelectrical appliance operating nearby. If hydrogen isdischarged through the tap, it will probably make a sound asof air escaping.

4.2. Operating the digital controller

Operating the EKHB* unit comes down to operating the digitalcontroller.

Features and functions

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

Both installations are available in multiple versions which vary incapacity, electrical supply and installed equipment (with an optionaldomestic hot water tank).

Basic controller functions

The basic controller functions are:

■ Turning the unit ON/OFF.

■ Operation mode change-over:- space heating (refer to page 7),- space cooling (refer to page 7) (*),- domestic water heating (refer to page 7) (*).

■ Selection of features:- quiet mode (refer to page 8),- weather dependent control (refer to page 8).

■ Temperature set point adjustment (refer to page 8).

The digital controller supports a power cut off of maximum 2 hours.When autorestart is enabled (see "5. Field settings" on page 14) thisallows 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 theoperation of the installation according to a daily or a weekly program.


CAUTION

Never let the digital controller get wet. This may cause anelectric 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, aska qualified service person to do this.

INFORMATION

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

■ Some functions described in this manual may not beavailable or should not be available. Ask your installeror your local dealer for more information onpermission levels.

INFORMATION

(*) The functions 'space cooling' and 'domestic waterheating' can only be selected when the correspondingequipment is installed.


Operation manual

4

4.3. Name and function of buttons and icons

1. HEATING/COOLING ON/OFF BUTTON yThe ON/OFF button starts or stops the heating or coolingfunction 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 maycause malfunction of the system (maximum 20 times per hour).

2. OPERATION LED 0The operation LED is lit during space heating or space coolingoperation. The LED blinks if a malfunction occurs. When theLED is OFF, space heating or space cooling are inactive whilethe other operation modes can still be active.

3. OPERATION MODE ICONS hcws

These icons indicate the current operation mode(s): spaceheating (h), space cooling (c), domestic water heating (w) orquiet mode (s). Within limits, different modes can be combined,e.g. space heating and domestic water heating. Thecorresponding mode icons will be displayed simultaneously.In a heating only installation, the c icon will never be displayed.If the domestic hot water tank is not installed, the w icon willnever be displayed.If the solar option is installed and active, the w icon will beblinking.

4. EXTERNAL CONTROL ICON eThis icon indicates that the room thermostat (optional) withhigher priority is controlling your installation. This external roomthermostat can start and stop the space heating/coolingoperation and change the operation mode (heating/cooling).When the external room thermostat with a higher priority isconnected, the schedule timer for space heating and spacecooling will not function.When the benefit kWh power rate signal is sent, the centralisedcontrol indication e will flash to indicate that benefit kWh powerrate is active.

5. DAY OF THE WEEK INDICATOR 1234567

This indicator shows the current weekday.When reading or programming the schedule timer, the indicatorshows the set day.

6. CLOCK DISPLAY 8The clock display shows the current time.When reading or programming the schedule timer, the clockdisplay shows the action time.

7. SCHEDULE TIMER ICON pThis icon indicates that the schedule timer is enabled.

8. ACTION ICONS QThese icons indicate the programming actions for each day ofthe schedule timer.

9. OFF ICON xxxxThis icon indicates that the OFF action is selected whenprogramming the schedule timer.

10. INSPECTION REQUIRED k and lThese icons indicate that inspection is required on theinstallation. Consult your dealer.

11. SET TEMPERATURE DISPLAY 9The display shows the current space heating/cooling settemperature of the installation.

12. SETTING $Not used. For installation purposes only.

13. NOT AVAILABLE nThis icon is displayed whenever a non-installed option isaddressed or a function is not available.

14. DEFROST/STARTUP MODE ICON dThis icon indicates that the defrost/startup mode is active.

15. COMPRESSOR ICON çThis icon indicates that the compressor in the outdoor unit of theinstallation is active.

16. BACKUP HEATER STEP ONE ( OR STEP TWO §(1)

These icons indicate that the backup heater is operating on lowcapacity (() or on high capacity (§). The backup heaterprovides extra heating capacity in case of low ambienttemperature (high heating load). The backup heater can alsoprovide auxiliary heating for domestic hot water tank withoutelectrical booster heater (only for EKHTS).

17. BOOSTER HEATER ICON m (only for tank with built-inelectrical booster heater (EKHW*))This icon indicates that the booster heater is active. The boosterheater provides auxiliary heating for the domestic hot watertank.The booster heater is located in the domestic hot water tank.The icon is not used when the domestic hot water tank is notinstalled.

18. PUMP ICON éThis icon indicates that the circulation pump is active.

19. OUTDOOR TEMPERATURE DISPLAY uWhen this icon is flashing, the outdoor ambient temperature isdisplayed.

20. WEATHER DEPENDENT SET POINT ICON aThis icon indicates that the controller will adapt the temperatureset point automatically, based on the outdoor ambienttemperature.

21. TEMPERATURE ICON bThis icon is displayed when the water outlet temperature of theindoor unit, the outdoor ambient temperature and the domestichot water tank temperature are shown.The icon is also displayed when the temperature set point is setin schedule timer programming mode.This icon is blinking in case automatic setback function is active.

22. TEST OPERATION ICON tThis 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 19.

24. ERROR CODE :This code refers to the error code list and is for service purposesonly. Refer to the error code list in the installation manual.

25. SPACE HEATING/COOLING BUTTON =This button allows manual switching between heating or coolingmode (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.

INFORMATION

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

11735 6 248

13

25

26

11192114

354

7

9

1210

22

34

27

28

23 20

33

32

31

29

30

2161815


Operation manual

5EKHBH/X008BB


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

27. WEATHER DEPENDENT SET POINT BUTTON ba

This button enables or disables the weather dependent set pointfunction which is available in space heating/cooling operation.If the controller is set in permission level 2 or 3 (refer to "5. Fieldsettings" on page 14), the weather dependent set point buttonwill not be operable.

28. INSPECTION/TEST OPERATION BUTTON zThis button is used for installation purposes and changing fieldsettings. Refer to "5. Field settings" on page 14.

29. PROGRAMMING BUTTON <This multi-purpose button is used to program the controller. Thefunction of the button depends on the actual status of thecontroller or on previous actions carried out by the operator.

30. SCHEDULE TIMER BUTTON r/pThe 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 ofthe button depends on the actual status of the controller or onprevious actions carried out by the operator.If the controller is set in permission level 3 (refer to "5. Fieldsettings" on page 14), the schedule timer button will not beoperable.

31. TIME ADJUST BUTTON pi and pj

These multi-purpose buttons are used to adjust the clock, totoggle between temperatures (refer to "Displaying actualtemperatures" on page 9) and in schedule timer programmingmode.

32. TEMPERATURE ADJUST BUTTONS bi and bj

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

33. DOMESTIC HOT WATER TEMPERATURE ADJUST BUTTONSwbi and wbj(1)

These buttons are used to adjust the current set point of thedomestic hot water temperature (only for [4-03]=0, 1, 2, or 3).These buttons are used to adjust the current storage set point ofthe domestic hot water temperature (only for [4-03]=4 or 5).The buttons are not used when the domestic hot water tank isnot installed.

34. QUIET MODE BUTTON sThis button enables or disables quiet mode.If the controller is set in permission level 2 or 3 (refer to "5. Fieldsettings" on page 14), the quiet mode button will not beoperable.

35. BIVALENT FUNCTION OR EXTERNAL BACKUP HEATERACTIVE RThis icon indicates that the bivalent function or external backupheater permission signal is active.

4.4. Setting up the controller

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

The controller is equipped with a schedule timer that enables theuser to schedule operations. Setting the clock and day of the week isrequired 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 willincrease/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 orprevious day is displayed.

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

To leave this procedure without saving, press the pr button.If no button is pressed for 5 minutes the clock and day of theweek will return to their previous setting.

Setting the schedule timer

To set the schedule timer, refer to chapter "4.7. Programming andconsulting the schedule timer" on page 10.

INFORMATION

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


NOTICE

The setting [4-03] shall not be modified. The installerselected the proper setting for your application.

INFORMATION

The status of this setting is only mentioned to indicatewhich settings and functions are applicable for yourapplication.

[4-03]=0, 1, 2, 3, or 4 is only for domestic hot watertank with built-in electrical booster heater (EKHW*).

[4-03]=5 is only for domestic hot water tank withoutelectrical booster heater (EKHTS).

INFORMATION

The clock needs to be set manually. Adjust the settingwhen switching from summertime to wintertime and viceversa.


Operation manual

6

4.5. Description of the operation modes

Space heating operation (h)

In this mode, heating will be activated as required by the watertemperature set point. The set point can be set manually (refer to"Manual operation" on page 8) or weather dependent (refer to"Selecting weather dependent set point operation" on page 8).

Startup (d)

At the start of a heating operation, the pump is not started until acertain refrigerant heat exchanger temperature is reached. Thisguarantees correct startup of the heat pump. During startup, icond is displayed.

Defrost (d)

In space heating operation or heat pump domestic water heatingoperation, freezing of the outdoor heat exchanger may occur due tolow outdoor temperature. If this risk occurs, the system goes intodefrost operation. It reverses the cycle and takes heat from the indoorsystem to prevent freezing of the outdoor system. After a maximumof 8 minutes of defrost operation, the system returns to spaceheating operation.

Space cooling operation (c)

In this mode, cooling will be activated as required by the watertemperature set point. The set point can be set manually (refer to"Manual operation" on page 8) or weather dependent (refer to"Selecting weather dependent set point operation" on page 8).

Domestic water heating operation (w)(1)

Only for [4-03]=0, 1, 2, or 3

In this mode, the indoor unit will heat up the domestic hot water tankby heat pump when the space heating/space cooling operation hasreached its temperature set point or heat pump domestic waterheating has a higher demand request than space side (depends onDIP switch setting). When necessary and when allowed by thebooster heater schedule timer (refer to "Programming space cooling,quiet mode, or booster heater mode" on page 12), the booster heaterprovides auxiliary heating for the domestic hot water tank.

Only for [4-03]=4 or 5

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 ascheduled time and untill the domestic hot water storage setpoint is reached. Preferally this is done during nighttimewhen space heating demand is the lowest (and if applicable,electric tariffs are low).

• PowerfulThe unit will immediately heat up the domestic water tankuntill domestic hot water storage set point upon user request.

2. Reheat• Scheduled

The unit will heat up the domestic water tank starting from ascheduled time and untill the reheat set point is reached.Preferally this is done during the time of day when spaceheating demand is lowest.

• ContinuousThe unit will continuously heat up the domestic water tankuntill the reheat set point is reached. In this case a balancewith the space heating demand is made, which ever demandis higher.

Powerful domestic water heating operation(2)

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

This function remains available in solar operation (only for EKHW*).

INFORMATION

■ Switching between space heating and space coolingoperation can only be done by pressing the =

button or by the external room thermostat.

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


INFORMATION

■ In order to provide domestic hot water throughout theday, it is advised to keep the domestic water heatingoperation on continuously.

■ The domestic hot water water temperature set pointcan only be set manually (refer to "Manual operation"on page 8).

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

■ When the w icon is blinking, the domestic hot water isheating up by the solar kit option and not by the indoorunit. Refer to installation manual of the EKSOLHWsolar kit.

INFORMATION

■ For purpose and configuration refer to "5. Fieldsettings" on page 14.

■ The domestic hot water storage set point can only beset manually (refer to "Manual operation" on page 8).

■ The domestic hot water reheat set point can only beset by the setting [6-07]. Refer to "[6] Scheduledstorage and reheat domestic water heating" onpage 16.



NOTICE


INFORMATION


[4-03]=0, 1, 2, 3, or 4 is only for domestic hot water tankwith built-in electrical booster heater (EKHW*).



Operation manual

7EKHBH/X008BB


Quiet mode operation (s)

Quiet mode operation means that the outdoor unit works at reducedcapacity so that the sound produced by the outdoor unit drops. Thisimplies that the indoor heating (cooling) capacity will also drop.Beware of this when a certain level of heating (cooling) is requiredindoors.

4.6. Controller operations

Manual operation

In manual operation, the user manually controls the settings of theinstallation. The last setting remains active until the user changes it oruntil the schedule timer forces another setting (refer to "Scheduletimer operation" on page 9).

As the controller can be used for a wide variety of installations, it ispossible to select a function which is not available on yourinstallation. 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 correspondingwater temperature set point.

2 Use the bi and bj buttons to set the desired watertemperature.

• Temperature range for heating: 25°C to 55°CThe temperature for heating can be set as low as 15°C (see"5. Field settings" on page 14). However, the temperature forheating should only be set lower than 25°C duringcommissioning of the installation. When set lower than 25°C,only the backup heater will operate.In order to avoid overheating, space heating is not operablewhen the outdoor ambient temperature rises above a certaintemperature (as set through field setting [4-02], refer to"5. Field settings" on page 14).

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

3 Switch on the unit by pushing the y button.

The operation LED 0 lights up.

Selection and setting of domestic water heating (w)

1 Use the v button to activate domestic water heating (w).

Icon w appears on the display.

2 Use the wi or wj button to display the actualtemperature set point and subsequently, to set the correcttemperature.

The actual temperature set point only appears on the displayafter pressing one of the buttons wi or wj. If no button ispressed for 5 seconds, the temperature set point willautomatically disappear from the display again.Temperature range for domestic water heating: - For EKHW* only: 30°C to 78°C- For EKHTS only: 30°C to 60°C

3 Press the v button to deactivate domestic water heating (w).

Icon w disappears from the display.

Selecting powerful domestic water heating operation(1)

1 Press v for 5 seconds to activate powerful domestic waterheating operation.

- For EKHW* only: Icons w and m start flashing(2).- For EKHTS only: Icons w and § start flashing(3).Powerful domestic water heating is deactivated automaticallywhen the set point for the domestic hot water is reached.

Selecting quiet mode operation (s)

1 Use the s button to activate quiet mode operation (s).

Icon s appears on the display.If the controller is set in permission level 2 or 3 (refer to "5. Fieldsettings" on page 14), the s button will not be operable.

Selecting weather dependent set point operation

1 Press the ba button to select weather dependent set pointoperation.

Icon a appears on the display as well as the calculated watertemperature set point based on the outdoor temperature.

2 Use the bi or bj button to display the actual shift valueand subsequently, to set the correct value.

The shift value only appears on the display after pressing one ofthe buttons bi or bj. If no button is pressed for 5seconds, the shift value will automatically disappear from thedisplay again.Range for the shift value: –5°C to +5°C

CAUTION

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

These values shall be determined based on theapplication.

INFORMATION

In heating mode (h) or cooling mode (c), the watertemperature set point can also be weather dependent (icona is shown).

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

In this case the controller shows the calculated controllerset point. The bi button or bj button can be used todisplay the actual "shift value" and subsequently, to set thecorrect value. This shift value is the temperature differencebetween the temperature set point calculated by thecontroller and the real set point. E.g. a positive shift valuemeans that the real temperature set point will be higherthan the calculated set point.

INFORMATION

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

INFORMATION

The domestic hot water set point set on the controlleris the actual domestic hot water set point ([4-03]=0, 1,2, or 3) or the domestic hot water storage set point([4-03]=4, or 5). See "Domestic water heatingoperation (w)" on page 7.

INFORMATION

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


(2) Only applicable for tank with built-in electrical booster heater (EKHW*).(3) Only applicable for tank without electrical booster heater (EKHTS).


Operation manual

8

Displaying actual temperatures

1 Push the ba button for 5 seconds.

The b icon and the entering water temperature are displayed.The icons l and = are flashing.

2 Use the pi and pj buttons to display:

If no button is pressed for 5 seconds, the controller leaves thedisplay mode.

Schedule timer operation

In schedule timer operation, the installation is controlled by theschedule timer. The actions programmed in the schedule timer will beexecuted automatically.

The schedule timer always follows the last command until a newcommand is given. This means that the user can temporarily overrulethe last executed programmed command by manual operation (Referto "Manual operation" on page 8). The schedule timer will regaincontrol over the installation as soon as the next programmedcommand of the schedule timer occurs.

The schedule timer is enabled (p icon displayed) or disabled (p iconnot displayed), by pressing the pr button.

To set up the SCHEDULE TIMER refer to chapter "4.7. Programmingand consulting the schedule timer" on page 10.

What can the schedule timer do?

The schedule timer allows the programming of:

1. Space heating (refer to "Programming space heating ordomestic water heating" on page 11)Switch on the desired mode at a scheduled time, in combinationwith a set point (weather dependent or manually set). Four actions per weekday can be programmed, totalling28 actions.

2. Space cooling (refer to "Programming space cooling, quietmode, or booster heater mode" on page 12).Switch on the desired mode at a scheduled time, in combinationwith a set point (weather dependent or manually set). Fouractions can be programmed. These actions are repeated daily.

3. Quiet mode (refer to "Programming space cooling, quiet mode,or booster heater mode" on page 12)Switch the mode on or off at a scheduled time. Four actions canbe programmed per mode. These actions are repeated daily.

4. Domestic water heating (refer to "Programming space heating ordomestic water heating" on page 11)[4-03]=0, 1, 2, or 3Switch the mode on or off at a scheduled time. Four actions perweekday can be programmed, totalling 28 actions.

[4-03]=4 or 5Switch the mode on or off at a scheduled time. The switch set toon means enabeling the programmed storage and reheatoperation.

Flashing icon(s) Meaning

h or c The entering water temperature

h or c and é The outgoing water temperature after plate heat exchanger

h or c and ) The outgoing water temperature after backup heater

ç The liquid refrigerant temperature

u The outdoor temperature

w The domestic hot water temperature

INFORMATION

■ Only use the pr button to enable or disable theschedule timer. The schedule timer overrules the y

button. The y button only overrules the scheduletimer until the next programmed action.

■ If the auto restart function is disabled, the scheduletimer will not be activated when power returns to theunit after a power supply failure. Press the pr buttonto enable the schedule timer again.

■ When power returns after a power supply failure, theauto restart function reapplies the user interfacesettings at the time of the power supply failure.It is therefore recommended to leave the auto restartfunction enabled.

■ The programmed schedule is time driven. Therefore, itis essential to set the clock and the day of the weekcorrectly. Refer to "Setting the clock" on page 6.

■ Manually adjust the clock for summertime andwintertime. Refer to "Setting the clock" on page 6.

■ A power failure exceeding 2 hours will reset the clockand the day of the week. The schedule timer willcontinue operation, but with a disordered clock. Referto "Setting the clock" on page 6 to adjust the clockand the day of the week.

■ The actions programmed in the schedule timer will notbe lost after a power failure so that reprogramming theschedule timer is not required.

INFORMATION

When the unit is connected to an external roomthermostat, the schedule timer for space heating andspace cooling is overruled by the external roomthermostat.

INFORMATION

■ The programmed actions are not stored according totheir timing but according to the time of programming.This means that the action that was programmed firstgets action number 1, even though it is executed afterother programmed action numbers.

■ When the schedule timer switches space heating orspace cooling x, the controller will also beswitched off. Note that this has no influence ondomestic water heating.

■ [4-03]=4 or 5. In case no domestic water heatingactions are programmed, enabling or disabling theschedule timer will only have influence on the spaceheating, cooling and quite mode. In this way it ispossible to separate on one hand the space heating,cooling and quite mode scheduled action as part ofthe schedule timer and on the other hand the storageand reheat operation of the domestic water heating.In this way, it is easy to disable the space heating andcooling by disabling the schedule timer with keepingthe storage and reheat domestic water heatingenabled (refer to "Scheduled domestic hot waterstorage" on page 16 and "Scheduled/continuousdomestic hot water reheat" on page 16).

NOTICE


Operation manual

9EKHBH/X008BB


What can the schedule timer NOT do?

The schedule timer can not change the operation mode from spaceheating to space cooling or vice versa.

How to interpret the programmed actions

To be able to understand the behaviour of your installation when theschedule timer is enabled, it is important to keep in mind that the"last" programmed command overruled the "preceding" programmedcommand and will remain active until the "next" programmedcommand occurs.

Example: imagine the actual time is 17:30 and actions areprogrammed at 13:00, 16:00 and 19:00. The "last" programmedcommand (16:00) overruled the "previous" programmed command(13:00) and will remain active until the "next" programmed command(19:00) occurs.

So in order to know the actual setting, one should consult the lastprogrammed command. It is clear that the "last" programmedcommand may date from the day before. Refer to "Consultingprogrammed actions" on page 13.

4.7. Programming and consulting the schedule timer(1)

Getting started

Programming the schedule timer is flexible (you can add, remove oralter programmed actions whenever required) and straightforward(programming steps are limited to a minimum). However, beforeprogramming the schedule timer, remind:

■ Familiarise yourself with the icons and the buttons. You will needthem when programming. Refer to "4.3. Name and function ofbuttons and icons" on page 5.

■ Fill out the form at the very end of this manual. This form canhelp you define the required actions for each day. Keep in mindthat:- In the space heating and domestic water heating program, 4

actions can be programmed per weekday. The same actions are repeated on a weekly basis.

- In the space cooling, quiet mode, and booster heater mode(2) program, 4 actions can be programmed per mode. The same actions are repeated on a daily basis.

■ Take your time to enter all data accurately.

■ Try to program the actions in a chronological way: start withaction 1 for the first action and end with the highest number forthe last action. This is not a requirement but will simplify theinterpretation of the program later.

■ If 2 or more actions are programmed for the same day and at thesame time, only the action with the highest action number will beexecuted.

■ You can always alter, add or remove the programmed actionslater.

INFORMATION


[4-03]=0, 1, 2, 3, or 4 is only for domestic hot water tankwith built-in electrical booster heater (EKHW*).


INFORMATION

During schedule timer operation, someone may havealtered the actual settings manually (in other words, the"last" command was overruled manually). The icon p,indicating the schedule timer operation, may still bedisplayed, giving the impression that the "last" commandsettings are still active. The "next" programmed commandwill overrule the altered settings and return to the originalprogram.


(2) Only applicable for tank with built-in electrical booster heater (EKHW*).


Operation manual

10

Programming

Programming space heating or domestic water heating Programming space heating or domestic water heating is carried outas follows:

1 Press the < button.

The actual mode is blinking.

2 Use the pi and pj buttons to select the mode you wantto program (space heating h or domestic water heating w)

3 Press the < button to confirm the selected mode.

The actual day is blinking.

4 Select the day you would like to consult or to program by meansof the pi and pj buttons.

The selected day is blinking.

5 Press the < button to confirm the selected day.

The first programmed action of the selected day appears.

6 Use the pi and pj buttons to consult the otherprogrammed actions of that day.

This is called the readout mode. Empty program actions (e.g. 3and 4) are not displayed.

7 Press the < button for 5 seconds to enter the programmingmode.

8 Use the < button to select the action number you would like toprogram or to modify.

9 Use the ba button to select:

■ For space heating:- x: switch heating and the controller off.- 9: set the temperature by means of the bi and

bj buttons.- a: to select automatic temperature calculation.

■ For domestic water heating: use the ba button to enable ordisable the x action.

10 Use the pi and pj buttons to set the correct action time.

11 Repeat steps 8 to 10 to program the other actions of theselected day.

When all actions have been programmed, make sure that thedisplay shows the highest action number you would like to save.

12 Press the < button for 5 seconds to store the programmedactions.

If the < button is pressed when action number 3 is displayed,actions 1, 2 and 3 are stored but 4 is deleted.You automatically return to step 6.By pressing the pr button several times, you return to previoussteps in this procedure and finally return to normal operation.

5 sec

5 sec

5 sec

5 sec

INFORMATION

Returning to previous steps in the programming procedurewithout saving modified settings is done by pressing thepr button.

Operation manual

11EKHBH/X008BB


Programming space cooling, quiet mode, or booster heatermode(1)

Programming space cooling, quiet mode, or booster heater mode(1)

is carried out as follows:



2 Use the pi and pj buttons to select the mode you wantto program (space cooling c, quiet mode s, or booster heatingm(1)).

The selected mode is blinking.


The first programmed action is displayed.

4 Use the pi and pj buttons to consult the programmedactions.

This is called the readout mode. Empty program actions (e.g. 3and 4) are not displayed.


6 Use the < button to select the action number you would like toprogram or to modify.

7 Use the pi and pj buttons to set the correct action time.

8 Use the ba button to select:

■ For space cooling:- x: switch cooling and the controller off.- 9: set the temperature by means of the bi and


■ For quiet mode and booster heater mode(1): use the ba

button to enable or disable the x action.

9 Repeat steps 6 to 8 to program the other actions of the selectedmode.

When all actions have been programmed, make sure that thedisplay shows the highest action number you would like to save.

10 Press the < button for 5 seconds to store the programmedactions.

If the < button is pressed when action number 3 is displayed,actions 1, 2 and 3 are stored but 4 is deleted.You automatically return to step 4. By pressing the pr buttonseveral times, you return to previous steps in this procedure andfinally return to normal operation.

(1) Only applicable for tank with built-in electrical booster heater (EKHW*).

5 sec

5 sec

5 sec

5 sec

INFORMATION

Returning to previous steps in the programming procedurewithout saving modified settings is done by pressing thepr button.

INFORMATION

Programming the booster heater operation(1) time is onlyvalid if field setting [4-03]=1, 2, or 3.


Operation manual

12

Consulting programmed actions

Consulting space heating or domestic water heating actions

Consulting space heating or domestic water heating is carried out asfollows.



2 Use the pi and pj buttons to select the mode you wantto program (space heating h or domestic water heating w)



4 Select the day you would like to consult by means of the pi

and pj buttons.



The first programmed action of the selected day appears.

6 Use the pi and pj buttons to consult the otherprogrammed actions of that day.

This is called the readout mode. Empty program actions (e.g. 3and 4) are not displayed.By pressing the pr button several times, you return to previoussteps in this procedure and finally return to normal operation.

Consulting space cooling, quiet mode, or booster heatermode(1)

Consulting space cooling, quiet mode, or booster heater mode(2) iscarried out as follows.



2 Use the pi and pj buttons to select the mode you wantto consult (space cooling c, quiet mode s, or booster heatermode m(3)).



The first programmed action is displayed.

4 Use the pi and pj buttons to consult the programmedactions.

This is called the readout mode. Empty program actions (e.g. 3and 4) are not displayed.By pressing the pr button several times, you return to previoussteps in this procedure and finally return to normal operation.

Tips and tricks

Programming the next day(s)

After confirming the programmed actions of a specific day (i.e. afterpressing the < button for 5 seconds), press the pr button once. Youcan now select another day by using the pi and pj buttonsand restart consulting and programming.

Copying programmed actions to next day

In heating/domestic water heating program it is possible to copy allprogrammed actions of a specific day to the next day (e.g. copy allprogrammed actions from "1" to "2").

To copy programmed actions to the next day, proceed as follows:



2 Use the pi and pj buttons to select the mode you wantto program.

The selected mode is blinking.You can leave programming by pressing the pr button.



4 Select the day you would like to copy to the next day by meansof the pi and pj buttons.

The selected day is blinking.You can return to step 2 by pressing the pr button.

5 Press the < and pr buttons simultaneously for 5 seconds.

After 5 seconds the display will show the next day (e.g. "2" if"1" was selected first). This indicates that the day has beencopied.You can return to step 2 by pressing the pr button.

Deleting one or more programmed actions

Deleting one or more programmed actions is done at the same timeas storing the programmed actions.

When all actions for one day have been programmed, make sure thatthe display shows the highest action number you would like to save.By pressing the < button for 5 seconds, you store all actions exceptthose with a higher action number than the one that is displayed.

E.g. when the < button is pressed when action number 3 isdisplayed, actions 1, 2 and 3 are stored but 4 is deleted.

Deleting a mode



2 Use the pi and pj buttons to select the mode you wantto delete (space cooling c, quiet mode s, or booster heatingmode m(4)).


3 Press the < and ba button simultaneously for 5 seconds todelete the selected mode.

Deleting a day of the week (space heating or domestic waterheating mode)



2 Use the pi and pj buttons to select the mode you wantto delete (space heating h or domestic water heating w).




4 Select the day you would like to delete by means of the pi

and pj buttons.


5 Press the < and ba button simultaneously for 5 seconds todelete the selected day.

INFORMATION

Returning to previous steps in this procedure is done bypressing the pr button.

(1) Only applicable for tank with built-in electrical booster heater (EKHW*).(2) Only applicable for tank with built-in electrical booster heater (EKHW*).

INFORMATION

Returning to previous steps in this procedure is done bypressing the pr button.

(3) Only applicable for tank with built-in electrical booster heater (EKHW*). (4) Only applicable for tank with built-in electrical booster heater (EKHW*).

Operation manual

13EKHBH/X008BB


5. FIELD SETTINGS

The indoor unit shall be configured by the installer to match theinstallation environment (outdoor climate, installed options, etc.) anduser demand. However, the field settings mentioned in "Field settingstable" on page 19 can be modified to customer preferences. Thereto,a number of so called field settings are available. These field settingsare accessible and programmable through the user interface on theindoor unit.

Each field setting is assigned a 3-digit number or code, for example[1-03], which is indicated on the user interface display. The first digit[1] indicates the 'first code' or field setting group. The second andthird digit [03] together indicate the 'second code'.

A list of all field settings and default values is given under "Fieldsettings table" on page 19. In this same list, we provided for 2columns to register the date and value of altered field settings atvariance with the default value.

A detailed description of each field setting is given under "Detaileddescription" on page 14.

5.1. Procedure

To change one or more field settings, proceed as follows.

1 Press the z button for a minimum of 5 seconds to enter FIELDSET MODE.The $ icon (3) will be displayed. The current selected fieldsetting code is indicated ; (2), with the set value displayed tothe right - (1).

2 Press the bgi button to select the appropriate fieldsetting first code.

3 Press the bgj button to select the appropriate fieldsetting second code.

4 Press the pfi button and pfj button to changethe set value of the select field setting.

5 Save the new value by pressing the pr button.

6 Repeat step 2 through 4 to change other field settings asrequired.

7 When finished, press the z button to exit FIELD SET MODE.

Detailed description

[0] User permission level

If required, certain user interface buttons can be made unavailable forthe user.

Three permission levels are defined (see the table below). Switchingbetween level 1 and level 2/3 is done by simultaneously pressingbuttons pfi and pfj immediately followed bysimultaneously pressing buttons s and ba, and keeping all 4buttons pressed for at least 5 seconds (in normal mode). Note that noindication on the user interface is given. When level 2/3 is selected,the actual permission level – either level 2 or level 3 – is determinedby the field setting [0-00].

NOTICE

The default values mentioned in "Field settings table" onpage 19 are the values from factory. The actual initialvalues shall be selected according to your application.These values shall be confirmed by your installer.

CAUTION

■ The field settings [2] depends on the applicablelegislation.

■ The field settings [9] depends on the application.

■ Before changing these settings, the new values shallbe confirmed by the installer and/or shall be accordingto the applicable legislation.

2

31

NOTICE

Changes made to a specific field setting are only storedwhen the pr button is pressed. Navigating to a new fieldsetting code or pressing the z button will discard thechange made.

INFORMATION

■ Before shipping, the set values have been set asshown under "Field settings table" on page 19.

■ When exiting FIELD SET MODE, "88" may bedisplayed on the user interface LCD while the unitinitialises itself.

Button

Permission level

1 2 3

Quiet mode button s operable — —

Weather dependent set point button ba operable — —

Schedule timer enable/disable button pr operable operable —

Programming button < operable — —

Time adjust buttons pfi

pfjoperable — —

Inspection/test operation button z operable — —


Operation manual

14

[1] Weather dependent set point

The weather dependent set point field settings define the parametersfor the weather dependent operation of the unit. When weatherdependent operation is active the water temperature is determinedautomatically depending on the outdoor temperature: low outdoortemperatures will result in warmer water and vice versa. Duringweather dependent operation, the user has the possibility to shift upor down the target water temperature by a maximum of 5°C.

■ Field settings for heating operation

■ [1-00] Low ambient temperature (Lo_A): low outdoortemperature.

■ [1-01] High ambient temperature (Hi_A): high outdoortemperature.

■ [1-02] Set point at low ambient temperature (Lo_Ti): thetarget outgoing water temperature when the outdoortemperature equals or drops below the low ambienttemperature (Lo_A). Note that the Lo_Ti value should be higher than Hi_Ti, as forlow outdoor temperatures (i.e. Lo_A) warmer water isrequired.

■ [1-03] Set point at high ambient temperature (Hi_Ti): thetarget outgoing water temperature when the outdoortemperature equals or rises above the high ambienttemperature (Hi_A). Note that the Hi_Ti value should be lower than Lo_Ti, as forwarmer outdoor temperatures (i.e. Hi_A) less warm watersuffices.

■ Field settings for cooling operation

■ [1-05] Weather dependent for cooling function enable (1)/disable (0)

■ [1-06] Low ambient temperature (Lo2_A): low outdoortemperature.

■ [1-07] High ambient temperature (Hi2_A): high outdoortemperature.

■ [1-08] Set point at low ambient temperature (Lo2_Ti): thetarget outgoing water temperature when the outdoortemperature equals or drops below the low ambienttemperature (Lo2_A).Note that the Lo2_Ti value should be higher than Hi2_Ti, asfor low outdoor temperatures (i.e. Lo2_A) less cold watersuffices.

■ [1-09] Set point at high ambient temperature (Hi2_Ti): thetarget outgoing water temperature when the outdoortemperature equals or rises above the high ambienttemperature (Hi2_A). Note that the Hi2_Ti value should be lower than Lo2_Ti, asfor warmer outdoor temperatures (i.e. Hi2_A) colder water isrequired.

Tt Target water temperatureTA Ambient (outdoor) temperature

Shift value Shift value

[2] Disinfection function(1)

Applies only to installations with a domestic hot water tank.

The disinfection function disinfects the domestic hot water tank byperiodically heating the domestic hot water to a specific temperature.

■ [2-00] Operation interval: day(s) of the week at which thedomestic hot water should be heated.

■ [2-01] Status: defines whether the disinfection function isturned on (1) or off (0).

■ [2-02] Start time: time of the day at which the domestic hotwater should be heated.

■ [2-03] Set point: high water temperature to be reached.

■ [2-04] Interval: time period defining how long the set pointtemperature should be maintained.

TDHW Domestic hot water temperatureTU User set point temperature (as set on the user interface)TH High set point temperature [2-03]

t Time

Lo_TiLo2_Ti

Lo_ALo2_A

Hi_AHi2_A

TA

Tt

+ 05

00

– 05

Hi_TiHi2_Ti

Shift value


CAUTION

The disinfection function field settings must be configuredby the installer according to the applicable legislation.

WARNING

Be aware that the domestic hot water temperature at thehot water tap will be equal to the value selected in fieldsetting [2-03] after a disinfection operation.

When the high domestic hot water temperature can be apotential risk for human injuries, a mixing valve (fieldsupply) shall be installed at the hot water outlet connectionof the domestic hot water tank. This mixing valve shallsecure that the hot water temperature at the hot water tapnever rises above a set maximum value. This maximumallowable hot water temperature shall be selectedaccording to the applicable legislation.

CAUTION

Make sure that the disinfection function start time [2-02]with defined duration [2-04] is not interrupted by possibledomestic hot water demand.

00.00 22.00 24.0001.00 23.00 t

TDHW

TH

TU

[2-02]

[2-03] [2-04]

Operation manual

15EKHBH/X008BB


Only for tank without electrical booster heater (EKHTS)

According to local and national regulations, it may be required todisinfect the domestic hot water tank at a higher temperature(>60°C). In that case Daikin suggests to install a shunt pump and aheater element parallel on the domestic hot water tank according tothe figure below.

1 Domestic hot water tank2 Shunt pump (field supply)3 Heater element (field supply)4 Non-return valve (field supply)5 Shower (field supply)6 Indoor unit

[3] Auto restart

When power returns after a power supply failure, the auto restartfunction reapplies the user interface settings at the time of the powersupply failure.

Note that with the function disabled the schedule timer will not beactivated when power returns to the unit after a power supply failure.Press the pr button to enable the schedule timer again.

■ [3-00] Status: defines whether the auto restart function isturned ON (0) or OFF (1).

[4] Space heating off temperature

Space heating off temperature

■ [4-02] Space heating off temperature: outdoor temperatureabove which space heating is turned off to avoid overheating.

[6] Scheduled storage and reheat domestic water heating(1)

Scheduled domestic hot water storage

The storage set point can be accessed directly using the wi andwj buttons.

■ [6-03] Scheduled storage: defines whether the scheduleddomestic water heating storage during night is enabled (1) ornot (0).

■ [6-04] Scheduled storage start time: time of the night at whichthe domestic water should be heated.

Scheduled/continuous domestic hot water reheat

■ [6-05] Reheat: defines whether the scheduled domestic waterreheat during daytime is enabled (1) or continuous reheat isenabled (2) or reheat is disabled (0)

■ [6-06] Scheduled reheat start time: time of the day at which thedomestic water should be heated.

■ [6-07] Domestic hot water reheat set point

■ [6-08] Domestic hot water reheat set point hysteresis

Example 1: Scheduled storage [6-03]=1, scheduled reheat [6-05]=1,disinfection function [2-01]=1 activated.

A Scheduled storage operation: activated at [6-04], heat up domestic hot water untill domestic hot water user interface set point TDHW (e.g 55°C) is reached.

B Scheduled reheat operation: activated at [6-06], heat up domestic hot water untill domestic hot water reheat set point [6-07] (e.g 45°C ) is reached.

C Disinfection operation (if activated): activated at [2-02], heat up domestic hot water untill domestic hot water disinfection set point [2-03] (e.g 60°C) is reached. Refer to "[2] Disinfection function" on page 15.

t TimeT Domestic hot water temperature

TDHW Domestic hot water user interface set point

Example 2: Scheduled storage [6-03]=1, continuous reheat [6-05]=2,disinfection function [2-01]=1 activated.

A Scheduled storage operation: activated at [6-04], heat up domestic hot water untill domestic hot water user interface set point TDHW (e.g 55°C) is reached.

B Continuous reheat operation: continues activated heat up domestic water till domestic hot water reheat set point [6-07] (e.g 45°C) is reached with a hysteresis of [6-08].

C Disinfection operation (if activated): activated at [2-02], heat up domestic hot water untill domestic hot water disinfection set point [2-03] (e.g 60°C) is reached. Refer to "[2] Disinfection function" on page 15.

t TimeT Domestic hot water temperature

TDHW Domestic hot water user interface set point

WARNING

Never heat up the domestic water tank temperature higherthan 80°C. This will cause damage to the equipment andpotentially danger of leakage of hot water which can causeburning wounds.

NOTICE

It is therefore recommended to leave the auto restartfunction enabled.

NOTICE

If the benefit kWh rate power supply is of the type thatpower supply is interrupted, then always allow the autorestart function.

If you feel unsure about this topic, contact your installer foradvice and information.


INFORMATION

The scheduled storage and reheat domestic water heatingwill only be carried out when [4-03]=4 or 5 and thedomestic water heating mode is enabled by the w button.

21

63 5

4

A B CT

t

[2-03]

TDHW

[6-07]

[6-04] [6-06] [2-02]

A B C

[6-0

8]

BT

t

[2-03]

[6-07]

TDHW

[6-04] [2-02]


Operation manual

16

[9] Heating and cooling set point ranges

The purpose of this field setting is to prevent the user from selectinga wrong (i.e., too hot or too cold) leaving water temperature. Theretothe heating temperature set point range and the cooling temperatureset point range available to the user can be configured.

■ [9-00] Heating set point upper limit: maximum leaving watertemperature for heating operation.

■ [9-01] Heating set point lower limit: minimum leaving watertemperature for heating operation.

■ [9-02] Cooling set point upper limit: maximum leaving watertemperature for cooling operation.

■ [9-03] Cooling set point lower limit: minimum leaving watertemperature for cooling operation.

[9-05~9-08] Automatic setback function

Setback function provides the possibility to lower the watertemperature during space heating. The setback function can forinstance be activated during the night because the temperaturedemands during night and day are not the same.

■ [9-05] Status: defines whether the setback function is turnedON (1) or OFF (0)

■ [9-06] Start time: time at which setback is started

■ [9-07] Stop time: time at which setback is stopped

■ [9-08] Leaving water setback value

A Normal leaving water temperature set point or calculated weather depended set point

B Calculated leaving water setback temperature set pointt Time

T Temperature

[C] Setup on solar kit

Solar priority mode

■ [C-00] Solar priority mode setting: for information concerningthe EKSOLHW solar kit, refer to the installation manual ofthat kit.

INFORMATION

■ Make sure the domestic water is only heated up to thedomestic hot water temperature you require.Start with a low domestic hot water storagetemperature set point, and only increase if you feelthat the domestic hot water supply temperature is notsufficient for your needs (this depends on your waterusing pattern).

■ Make sure the domestic water is not heatedunnecessary. Start with activating automatic storageduring night (default setting). If it seems that thedomestic hot water night storage operation is notsufficient for your needs, an additional scheduledreheat during daytime can be set.

NOTICE


INFORMATION


[4-03]=4 is only for domestic hot water tank with built-inelectrical booster heater (EKHW*).


CAUTION

■ In case of a floor heating application, it is important tolimit the maximum leaving water temperature atheating operation according to the specifications ofthe floor heating installation.

■ In case of a floor cooling application, it is important tolimit the minimum leaving water temperature atcooling operation (field setting of parameter [9-03]) to16~18°C to prevent condensation on the floor.

INFORMATION

■ Remark that the b icon will be flashing during setbackoperation. The calculated leaving water setback setpoint is not shown during setback operation.

■ By default the setback function is disabled.

■ The setback function can be combined with theautomatic weather dependent set point operation.

■ Setback function is an automatic daily scheduledfunction.

■ The setback function can be combined with theschedule timer. When setback is active, the scheduledspace heating set point will be lowered with the [9-08]leaving water setback value.

INFORMATION

Only applicable if [4-03]=4 or 5!

It is advised to set the start time of automatic storageduring night [6-04] on the moment that the setback functionstarts [9-06].

INFORMATION

Pay attention not to set the setback value too low,especially during colder periods (e.g. winter time). It ispossible that the room temperature can not be reached (orit will take a much longer time) because of the bigtemperature difference.

[9-06] [9-07]

B

A

T

t

55°C

53°C

2°C [9-08]

Operation manual

17EKHBH/X008BB


[d] Local shift value weather dependent

Local shift value weather dependent

The local shift value weather dependent field setting is only relevantin case weather dependent set point (see field setting "[1] Weatherdependent set point" on page 15) is selected.

■ [d-03] Local shift value weather dependent: determines theshift value of the weather dependent set point aroundoutdoor temperature of 0°C.

Tt Target water temperatureTA Outdoor temperatureR RangeL Local shift value

[1-00]~[1-04] Applicable field settings of the weather dependent set point [1].

[E] Unit information readout

■ [E-00] Readout of the software version (example: 23)

■ [E-01] Readout of the EEPROM version (example: 23)

■ [E-02] Readout of the unit model identification (example: 11)

■ [E-03] Readout of the liquid refrigerant temperature

■ [E-04] Readout of the inlet water temperature

[d-03]Outdoor temperature range

(TA) Local shift value

0 — —

1–2°C~2°C

2

2 4

3–4°C~4°C

2

4 4

INFORMATION

[E-03] and [E-04] readouts are not permanentlyrefreshed. Temperature readouts are updated afterlooping through the field setting first codes again only.

TA

Tt

[1-03]

[1-00] 0°C [1-01]

[1-02]

L

R


Operation manual

18

Field settings table

First code

Second code Setting name

Installer setting at variance with default valueDefault value Range Step UnitDate Value Date Value

0 User permission level

00 User permission level 3 2/3 1 —

1 Weather dependent set point

00 Low ambient temperature (Lo_A) –10 –20~5 1 °C

01 High ambient temperature (Hi_A) 15 10~20 1 °C

02 Set point at low ambient temperature (Lo_Ti) 40 25~55 1 °C

03 Set point at high ambient temperature (Hi_Ti) 25 25~55 1 °C

05 Weather dependent for cooling function enable/disable 0 (OFF) 0/1 — —

06 Low ambient temperature (Lo2_A) 20 10~25 1 °C

07 High ambient temperature (Hi2_A) 35 25~43 1 °C

08 Set point at low ambient temperature (Lo2_Ti) 22 5~22 1 °C

09 Set point at high ambient temperature (Hi2_Ti) 18 5~22 1 °C

2 Disinfection function

00 Operation interval Fri Mon~Sun, All — —

01 Status 1 (ON) 0/1 — —

02 Start time 23:00 0:00~23:00 1:00 hour

03 Set point (only in combination with domestic hot water tank without electrical booster heater (EKHTS))

60 fixed 5 °C

03 Set point (only in combination with domestic hot water tank with built-in electrical booster heater (EKHW*))

70 55~80 5 °C

04 Interval (only in combination with domestic hot water tank without electrical booster heater (EKHTS))

60 40~60 5 min

04 Interval (only in combination with domestic hot water tank with built-in electrical booster heater (EKHW*))

10 5~60 5 min

3 Auto restart

00 Status 0 (ON) 0/1 — —

4 Space heating off temperature

00 Installation related setting


02 Space heating off temperature 25 14~25 1 °C


04 Not applicable. Do not change the default value. — — — —










Operation manual

19EKHBH/X008BB






Scheduled storage and reheat domestic water heating(a)

03 Scheduled time storage 1 (ON) 0/1 1 —

04 Scheduled time storage start time 1:00 0:00~23:00 1:00 hour

05 Scheduled time reheat or continuous reheat 0 (OFF) 0/1/2 1 —

06 Scheduled time reheat start time 15:00 0:00~23:00 1:00 hour

07 Domestic hot water reheat set point 45 30~50 1 °C

08 Domestic hot water reheat set point hysteresis 10 2~20 1 °C













9 Heating and cooling set point ranges

00 Heating set point upper limit 55 37~55 1 °C

01 Heating set point lower limit 25 15~37 1 °C

02 Cooling set point upper limit 22 18~22 1 °C

03 Cooling set point lower limit 5 5~18 1 °C


Automatic set back function

05 Set back operation 0 (OFF) 0/1 1 —

06 Set back operation start time 23:00 0:00~23:00 1:00 hour

07 Set back operation stop time 5:00 0:00~23:00 1:00 hour

08 Leaving water set back value 2 0~10 1 °C

C Solar kit

00 Solar priority mode setting 0 0/1 1 —





05 Not applicable. Do not change the default setting. — — — —

First code




Operation manual

20

d Local shift value weather dependent




03 Local shift value weather dependent 0 (OFF) 0/1/2/3/4 1 —




E Unit information readout

00 Software version Read only — — —

01 EEPROM version Read only — — —

02 Unit model identification. Do not change the default value.

depending on model — — —

03 Liquid refrigerant temperature Read only — 1 °C

04 Inlet water temperature Read only — 1 °C

F Installation related setting






Installation related setting






(a) When the unit is configured for restricted power supply condition mode, these settings are not applicable.

First code



Operation manual

21EKHBH/X008BB


6. MAINTENANCE

6.1. Important information regarding the refrigerant used

This product contains fluorinated greenhouse gases covered by theKyoto Protocol.

Refrigerant type: R410AGWP(1) value: 1975

(1) GWP = global warming potential

Periodical inspections for refrigerant leaks may be requireddepending on the applicable legislation. Please contact your localdealer for more information.

6.2. Maintenance activities

In order to ensure optimal availability of the unit, a number of checksand inspections on the unit and the field wiring have to be carried outat regular intervals, preferably yearly. This maintenance should becarried out by your local Daikin technician (see installation manual).

The only maintenance which may be required by the operator is:

■ keeping the remote controller clean by means of a soft dampcloth,

■ checking if the water pressure indicated on the manometer isabove 1 bar.

Only for the optional domestic hot water tank:

■ A check for correct operation of the pressure relief valveinstalled on your domestic hot water tank, has to be carried outat least every 6 months: it is important that the lever on the valveis actuated to prevent accumulation of mineral deposits that mayimpair valve operation and to confirm that the valve anddischarge pipe are not blocked. The lever should be operatedslowly and smoothly to avoid a sudden rush of hot water fromthe discharge pipe.Failure to operate the relief valve actuating lever may result inthe domestic hot water tank exploding.

■ Continuous leakage of water from the discharge pipe mayindicate a problem with the domestic hot water tank.

■ If a discharge pipe is connected to the pressure relief device itmust be installed in a continuously downward direction and in afrost-free environment. It must be left open to the atmosphere.

6.3. Standstill(1)

7. TROUBLESHOOTING

The guidelines below might help to solve your problem. If you cannotsolve the problem, consult your installer.

8. DISPOSAL REQUIREMENTS

Dismantling of the unit, treatment of the refrigerant, of oil and of otherparts must be done in accordance with the applicable legislation.

Your product is marked with this symbol. This means thatelectrical and electronic products shall not be mixed withunsorted household waste.

Do not try to dismantle the system yourself: thedismantling of the system, treatment of the refrigerant, of oil andother parts must be done by a qualified installer in accordance withthe applicable legislation.

Units must be treated at a specialized treatment facility for re-use,recycling and recovery. By ensuring this product is disposed offcorrectly, you will help to prevent potential negative consequences forthe environment and human health. Please contact the installer orlocal authority for more information.

DANGER

■ Do not touch water pipes during and immediately afteroperation as the pipes may be hot. Your hand maysuffer burns. To avoid injury, give the piping time toreturn to normal temperature or be sure to wearproper gloves.

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

WARNING

Do not touch the refrigerant pipes during and immediatelyafter operation as the refrigerant pipes may be hot or cold,depending on the condition of the refrigerant flowingthrough the refrigerant piping, compressor, and otherrefrigerant cycle parts. Your hands may suffer burns orfrostbite if you touch the refrigerant pipes. To avoid injury,give the pipes time to return to normal temperature or, ifyou must touch them, be sure to wear proper gloves.

CAUTION

If the supply cord is damaged, it must be replaced by themanufacturer, its agent or similar qualified persons in orderto avoid hazards.


NOTICE

During longer periods of standstill, e.g. during summerwith a heating only application, it is very important NOT TOSWITCH OFF THE POWER SUPPLY towards the unit.

Switching off the power supply stops the automaticrepetitive movement of the pump in order to prevent it fromgetting jammed.

POSSIBLE CAUSES CORRECTIVE ACTIONS

No readings on the remote controller (blank display)

• Check if the mains power is still connected to your installation.

• The benefit kWh rate power supply is active (see installation manual).(a)

(a) When the unit is configured for restricted power supply condition mode, see "Appendix" on page 23.

One of the error codes appears Consult your local dealer.Refer to the installation manual for a detailed list of error codes.

The schedule timer does work but the programmed actions are executed at the wrong time.(e.g. 1 hour too late or too early)

Check if the clock and the day of the week are set correctly, correct if necessary.

The schedule timer is programmed but does not work.

In case the pr icon is not displayed, push the pr button to enable the schedule timer.

Capacity shortage Consult your local dealer.

Temperature values displayed on the remote controller (user interface) are displayed in °F instead of °C.

To change the display back to °C, push ib and jb buttons simultaneously for 5 seconds. Execute same procedure to change back to the °F display. The default temperature display is in °C.


Operation manual

22

APPENDIX (for restricted power supply condition mode only)

3. INTRODUCTION

3.1. General information

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. Thebackup heater only serves as a backup in case of malfunctioning ofthe outdoor unit. In this application with restricted power supplycondition mode, the backup heater should be considered asemergency backup heater.

Domestic hot water tank (option)

An optional domestic hot water tank can be connected to the indoorunit. Only the tank with built-in electrical booster heater (EKHW*) in 3different sizes: 150, 200 and 300 litre, can be connected to the indoorunit.

Refer to the domestic hot water tank installation manual for furtherdetails.

4. OPERATING THE UNIT

4.1. Introduction

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

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

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

■ Make sure the heat pump system works at the lowest possiblehot water temperature required to heat your house.To optimize this, make sure the weather dependent set point isused and configured to match the installation environment.Refer to "5. Field settings" on page 14.

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

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

■ Make sure the domestic hot water is only heated up to thedomestic 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 domestichot water supply temperature is not sufficient.

■ Only for tank with built-in electrical booster heater (EKHW*):Make sure the domestic water heating by booster heater onlystart 1 to 2 hours before you expect domestic hot waterusage.In case you only need a lot of domestic hot water in theevening or in the morning, only allow domestic water heatingby 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 andbooster heating schedule timer. Refer to Programming inchapter "4.7. Programming and consulting the scheduletimer" on page 10.

■ If the domestic hot water is not used for two weeks or more, aquantity of hydrogen gas which is highly flammable mayaccumulate in the domestic hot water tank. To dissipate thisgas safely, it is recommended that a hot tap be turned on forseveral minutes at a sink, basin, or bath, but not at adishwasher, clothes washer or other appliance. During thisprocedure there must be no smoking, open flame or anyelectrical appliance operating nearby. If hydrogen isdischarged through the tap, it will probably make a sound asof air escaping.

INFORMATION

All information and settings in the manual are applicable forthis application, except the information and settingsmentioned in this appendix.

NOTICE

Restricted power supply condition mode can only be usedfor a tank with built-in electrical booster heater (EKHW*).

INFORMATION

For installations with restricted power supply, the indoorunit allow operation of backup heater only, booster heateronly or outdoor unit only.

Read attentively following information to understand theunit operation.

Operation manual

23EKHBH/X008BB


4.3. Name and function of buttons and icons

16. BACKUP HEATER STEP ONE ( OR STEP TWO §These icons indicate that the backup heater is operating on lowcapacity (() or on high capacity (§). The backup heaterprovides heating capacity in case of malfunction of the outdoorunit.

33. DOMESTIC HOT WATER TEMPERATURE ADJUST BUTTONSwbi and wbj

These buttons are used to adjust the current set point of thedomestic hot water temperature.The buttons are not used when the domestic hot water tank isnot installed.

4.5. Description of the operation modes

Domestic water heating operation (w)

Only for [4-03]=0, 1, 2, or 3

In this mode, the indoor unit will heat up the domestic hot water tankby heat pump when the space heating/space cooling operation hasreached its temperature set point or heat pump domestic waterheating has a higher demand request than space side (depends onDIP switch setting).

Powerful domestic water heating operation

Powerful domestic water heating operation is not applicable forinstallations with restricted power supply condition mode.

4.6. Controller operations

Manual operation

Selecting powerful domestic water heating operation

Powerful domestic water heating operation is not applicable forinstallations with restricted power supply condition mode.

Emergency backup heater operation always haspriority over compressor or booster heater operation.

Emergency backup heater operation occurs because of:

■ User request to heat up water to the space heatingloops. The temperature of this water is too low and isout of the operation range (during initial start-up forexample). Refer to "Initial start-up at low outdoorambient temperatures" and "Re-start at low outdoorambient temperatures" in the installation manual.

■ During heating operation the water temperaturebecomes too low and drops out of the operationrange. Refer to "Checking the water volume andexpansion vessel pre-pressure" in the installationmanual to minimize the backup heater operation.

■ Malfunction of the heat pump unit.

If during backup heater operation the heating load is higherthan the heater capacity, the water temperature can notincrease. In this case refer to "Re-start at low outdoorambient temperatures" in the appendix of the installationmanual.

INFORMATION

Balance between space heating/cooling demand anddomestic hot water demand

■ Domestic water heating by compressor becomes onlypossible if the space heating/cooling requested setpoint is reached.To ensure domestic hot water production, theschedule timers must be used to disable spaceheating/cooling. Refer to "Programming andconsulting the schedule timer" on page 25.

■ Booster heater operation is only possible when thecompressor of the heat pump is not operating. Thecompressor operates because of space heating/cooling demand or because of domestic waterheating.To ensure domestic hot water production, theschedule timers must be used to disable spaceheating/cooling. Refer to "Programming andconsulting the schedule timer" on page 25.

■ When using a room thermostat, domestic waterheating by compressor or by booster heater is NOTpossible as long as the room thermostat demandscooling or heating.In this case de-activate the room thermostat demandby its schedule timer.Refer to the operation manual of the room thermostatfor a detailed explanation how to de-activate spaceheating/cooling by schedule timer.


INFORMATION

■ Refer to "Balance between space heating/coolingdemand and domestic hot water demand" onpage 24.

■ The domestic hot water water temperature set pointcan only be set manually (refer to "Manual operation"on page 8).




Operation manual

24

4.7. Programming and consulting the schedule timer

All information mentioned in the manual is also applicable butadditional information is required to have correct operation for theapplication with the restricted power supply mode activated.

Programming

Before you start any programming, read attentively the guidelinesmentioned in "Balance between space heating/cooling demand anddomestic hot water demand" on page 24 to understand the unitoperation.

Programming space heating or domestic water heating

Programming space cooling, quiet mode, or booster heatermode

Example of schedule timers for installations with restrictedpower supply condition mode and optional domestic hot watertank

To optimize the comfort balance between space heating/cooling anddomestic hot water, the schedule timers must be used.

The following procedure shows step-by-step a possible spaceheating/cooling and domestic hot water pattern. To ensure domestichot water production, the schedule timers must be used to disablespace heating/cooling. When space heating/cooling is disabled theheat pump will switch automatically to domestic water heating. In thiscase it is not required to program the domestic hot water or boosterheater schedule timer.

Example pattern:

A Space heating/space cooling

In this example, the domestic hot water tank will be heated between2:00 and 4:00.

CAUTION


The domestic water heating schedule timer mustcompletely overlap the booster heater schedule timer. Thebooster heater can not work if the domestic water heatingschedule timer is not active.

CAUTION


The domestic water heating schedule timer mustcompletely overlap the booster heater schedule timer. Thebooster heater can not work if the domestic water heatingschedule timer is not active.

INFORMATION

If using a room thermostat, domestic water heating bycompressor or by booster heater is NOT possible as longas the room thermostat demands cooling or heating.

In this case de-activate the room thermostat demand by itsschedule timer.

Refer to the operation manual of the room thermostat for adetailed explanation how to de-activate space heating/cooling by schedule timer.


0:00 1:00 2:00 3:00 4:00 5:00 6:007:00~23:59

A A

Operation manual

25EKHBH/X008BB


Programming space heating Programming space heating is carried out as follows:



2 Use the pi and pj buttons to select the heating mode.



4 Select the day you would like to consult or to program by meansof the pi and pj buttons.




7 Action number 1 will be displayed

8 Use the pi and pj buttons to set the correct action timeto 2:00.

9 Use the ba button to select x as action.

10 Use the < button to select action number 2.

11 Use the pi and pj buttons to set the action time to 4:00.

12 Use the ba button to select what the unit should do from 4:00onwards.

■ For space heating:- 9: set the temperature by means of the bi and


13 Press the < button for 5 seconds to store the programmedactions. When the program is stored, icon $ is displayedon the remote controller.

14 Repeat this sequence for all days of the week.

15 Now the unit is programmed to stop space heating between 2:00and 4:00. The unit will start space heating from 4:00.


5 sec

5 sec

5 sec

5 sec

INFORMATION

■ This example describes the procedure when noprogram is scheduled yet.

■ Returning to previous steps in the programmingprocedure without saving modified settings is done bypressing the pr button.

INFORMATION

■ By pressing the pr button several times, youreturn to previous steps in this procedure andfinally return to normal operation.

■ Other actions can also be programmed. See"4.7. Programming and consulting the scheduletimer" on page 10.


Operation manual

26

INFORMATION

When booster heater and domestic hot water scheduletimers are used, make sure they are enabled during theperiod that space heating/cooling is disabled.

Example pattern:

A Space heating/space coolingB Domestic water heatingC Booster heating


0:00 1:00 2:00 3:00 4:00 5:00 6:007:00~23:59

A

B

C

A

CAUTION

In case the disinfection function is required, the scheduletimer for domestic water heating and booster heating mustbe used. If the domestic water heating and booster heaterare not stopped, than this disinfection can not start.

Disinfection example pattern (refer to "[2] Disinfectionfunction" on page 15).

Pattern 1:Pattern 1 is an example schedule timer for domestic hotwater production.

A Space heating/space coolingB Domestic water heatingC Booster heating

Pattern 2:Pattern 2 is an example schedule timer for disinfectionfunction in combination with domestic hot waterproduction.

A Space heating/space coolingB Domestic water heatingC Booster heatingD Disinfection function

Mon Tue Wed Thu Fri Sat Sun

✓ ✓ ✓ — ✓ ✓ ✓

0:00 1:00 2:00 3:00 4:00 5:00 6:007:00~23:59

A

B

C

A

Mon Tue Wed Thu Fri Sat Sun

— — — ✓ — — —

0:00 1:00 2:00 3:00 4:00 5:00 6:007:00~23:59

A

B

C

D

A

Operation manual

27EKHBH/X008BB


5. FIELD SETTINGS

5.1. Procedure

Detailed description

[2] Disinfection function

All information mentioned in the manual is also applicable butadditional information is required to have correct operation for theapplication with the restricted power supply mode activated.

[6] Scheduled storage and reheat domestic water heating

[6-03]~[6-08] are not applicable for installations with restricted powersupply condition mode.

6. MAINTENANCE

6.3. Standstill

7. TROUBLESHOOTING

For applications with restricted power supply condition mode, it is notrecommended to connect the system to a benefit kWh rate powersupply.

All items related to benefit kWh rate power supply should beneglected.

CAUTION

Space heating/cooling always has priority over thedisinfection function.

The disinfection function is only possible when the unit isnot operating for space heating/cooling.

To allow the disinfection function, the schedule timers mustbe used. Set the disinfection function settings so that it iscombined with the domestic hot water function that isrunning during disabled space heating/cooling interval. It isadvised to run the disinfection function for minimum 1 hour.Refer to the extra addendum of the operation manual foran example pattern.

Refer to the operation manual for a detailed explanationhow to program the schedule timer.

CAUTION

If using a room thermostat, the disinfection function is notpossible as long as the room thermostat demands heatingor cooling. In this case, de-activate the room thermostatdemand by its schedule timer. Refer to the manual of theroom thermostat for a detailed explanation on how tode-activate space heating/cooling by schedule timer.

NOTICE

■ During longer periods of standstill, e.g. duringsummer with a heating only application, it is veryimportant NOT TO SWITCH OFF THE POWERSUPPLY towards the unit.

Switching off the power supply stops the automaticrepetitive movement of the pump in order to prevent itfrom getting jammed.

■ When the unit is turned off for some days duringwinter, then this should be considered as a start-up atlow ambient temperature. Refer to the chapter "Start-up at low outdoor ambient temperatures" in theinstallation manual to ensure that the unit operateswithin its operation range as soon as possible.



Operation manual

28

4PW62571-1 10.2010

Cop

yrig

ht 2

010

Dai

kin

OPERATION MANUAL - Daikin

Documents

Transcript of OPERATION MANUAL - Daikin