Daikin EKHBX008AA, EKHBH008AA User Manual

OPERATION MANUAL

Indoor unit for air to water heat pump system

and options

EKHBH008AA EKHBX008AA

EKHBH008AA*** EKHBX008AA***

ONTENTS

Indoor unit for air to water heat pump system and

Page

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

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

This unit ..................................................................................................... 1

Options ...................................................................................................... 1

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

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

Operating the digital controller ..........................................................2

Features and functions .............................................................................. 2

Basic controller functions ...................................................................... 2

Clock function........................................................................................ 2

Schedule timer function......................................................................... 2

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

Setting up the controller............................................................................. 4

Setting the clock.................................................................................... 4

Setting the schedule timer..................................................................... 4

Description of the operation modes........................................................... 4

Space heating operation (h).................................................................4

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

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

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

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

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

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

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

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

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

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

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

Operating the remote alarm option ................................................. 10

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

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

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

Field settings table................................................................................... 16

Maintenance .................................................................................. 18

Important information regarding the refrigerant used .............................. 18

Maintenance activities ............................................................................. 18

Standstill .................................................................................................. 18

Troubleshooting ............................................................................ 18

Disposal requirements ................................................................. 18

options

NTRODUCTION

Operation manual

Thank you for purchasing this AD indoor unit.

This manual

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

For "Checks before initial start-up" and "Initial start-up" procedures refer to the installation manual of this unit.

This unit

The AD indoor unit is the indoor part of the reversible air to water Daikin ERHQ heat pumps. These units are designed for wall mounted indoor installation and used for both heating and cooling applications. The units can be combined with Daikin fan coil units, ﬂoor heating, low temperature radiators, the Daikin domestic hot water tanks and the solar option kit.

The AD indoor unit range consists of two main versions: a heating/cooling (EKHBX) version and a heating only (EKHBH) version.

Both versions are delivered with an integrated backup heater for additional heating capacity during cold outdoor temperatures. The backup heater also serves as a backup in case of malfunctioning of the outdoor unit. The backup heaters are available in different capacities.

NOTE

An EKHBH/X008 AA indoor unit can only be connected to an ERHQ00* AD series outdoor unit.

Options

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

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

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

Operation manual

Domestic hot water tank option

An optional EKHWS(U) domestic hot water tank with integrated 3 kW electrical booster heater can be connected to the indoor unit. The domestic hot water tank is available in different sizes. For more information about the domestic hot water tank, refer to the installation manual of the domestic hot water tank.

Solar kit for domestic hot water tank option

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

Remote alarm kit option

For information concerning the EKRP1HB remote alarm, refer to the installation manual of that kit.

Indoor unit for air to water heat pump system and options

EKHBH/X008AA

4PW39351-1C

■

PERATING

NTRODUCTION

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

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

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

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

To optimize this, make sure the weather dependent set point is used and conﬁgured to match the installation environment. Refer to "Field settings" on page 10.

Make sure the equilibrium temperature ﬁeld setting is conﬁgured correctly.

Refer to "Field settings" on page 10. This function applies to operation of the backup heater. Setting

the equilibrium temperature correctly will avoid the backup heater to operate when the heat pump has sufﬁcient capacity to heat up your house.

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

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

■

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

■

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

page 7.

THE

UNIT

■

PERATING

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

THE

DIGITAL

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

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

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

CONTROLLER

Features and functions

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

Both installations are available in multiple versions which vary in capacity, electrical supply and installed equipment (with an optional domestic hot water tank with a booster heater).

NOTE

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

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

Basic controller functions

The basic controller functions are:

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

- space heating (refer to page 4),

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

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

- quiet mode (refer to page 5),

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

NOTE

The digital controller supports a power cut off of maximum 2 hours. When autorestart is enabled (see "Field settings" on page 10) this allows a power supply shut down of 2 hours without user intervention (e.g. beneﬁt kWh rate power supply).

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

Clock function

The clock functions are:

24 hour real time clock. Day of the week indicator.

EKHBH/X008AA

Indoor unit for air to water heat pump system and options

4PW39351-1C

Schedule timer function

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

Operation manual

(

Name and function of buttons and icons

1173

5 6 248

7 9

12 10

23 22

34 29

27 30

COOLING/HEATING ON/OFF BUTTON The ON/OFF button starts or stops the heating or cooling

function of the unit. When the unit is connected with an external room thermostat,

this button is not operable and the icon Pressing the ON/OFF button consecutively too many times may

cause malfunction of the system (maximum 20 times per hour).

NOTE

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

OPERATION LED The operation LED is lit during space cooling or space heating

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

OPERATION MODE ICONS

hcws

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

), space cooling (

), domestic water heating (

). Within limits, different modes can be combined, e.g. space heating and domestic water heating. The corresponding mode icons will be displayed simultaneously.

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

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

blinking. EXTERNAL CONTROL ICON This icon indicates that an external room thermostat with higher

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

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

DAY OF THE WEEK INDICATOR This indicator shows the current weekday. When reading or programming the schedule timer, the indicator

shows the set day. CLOCK DISPLAY The clock display shows the current time. When reading or programming the schedule timer, the clock

display shows the action time.

2161815

is shown.

icon will never be displayed.

icon will be

1234567

4 14

21 19 11

20 13

26 33 32 31

) or

icon will

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

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

programming the schedule timer.

10. INSPECTION REQUIRED

and

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

11. SET TEMPERATURE DISPLAY

The display shows the current set temperature of the installation.

12. SETTING

Not used. For installation purposes only.

13. NOT AVAILABLE

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

14. DEFROST/STARTUP MODE ICON

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

15. COMPRESSOR ICON

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

16. BACKUP HEATER STEP ONE

OR STEP TWO

These icons indicate that the backup heater is operating on low capacity (

) or on high capacity (

(

). The backup heater provides extra heating capacity in case of low ambient outdoor temperature (high heating load).

17.

BOOSTER HEATER ICON

This icon indicates that the booster heater is active. The booster heater provides auxiliary heating for the domestic hot water tank.

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

installed.

18. PUMP ICON

This icon indicates that the circulation pump is active.

19. OUTDOOR TEMPERATURE DISPLAY

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

20. WEATHER DEPENDENT SET POINT ICON

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

21. TEMPERATURE ICON

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

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

22. TEST OPERATION ICON

This icon indicates that the unit runs in test mode. Refer to the installation manual.

23. FIELD SET CODE

;

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

24. ERROR CODE : This code refers to the error code list and is for service purposes

only. Refer to the installation manual.

Operation manual

Indoor unit for air to water heat pump system and options

EKHBH/X008AA

4PW39351-1C

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

mode (provided the unit is not a heating only unit). When the unit is connected with an external room thermostat,

this button is not operable and the icon e is shown.

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

installed.

NOTE

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

27. WEATHER DEPENDENT SET POINT BUTTON ba This button enables or disables the weather dependent set point

function which is available in space heating operation only. If the controller is set in permission level 2 or 3 (refer to "Field

settings" on page 10), the weather dependent set point button

will not be operable.

28. INSPECTION/TEST OPERATION BUTTON

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

29. PROGRAMMING BUTTON < This multi-purpose button is used to program the controller. The

function of the button depends on the actual status of the controller or on previous actions carried out by the operator.

30. SCHEDULE TIMER BUTTON r/p The main function of this multi-purpose button is to

enable/disable the schedule timer. The button is also used to program the controller. The function of

the button depends on the actual status of the controller or on previous actions carried out by the operator.

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

settings" on page 10), the schedule timer button will not be

operable.

31. TIME ADJUST BUTTON pi and pj These multi-purpose buttons are used to adjust the clock, to

toggle between temperatures (water outlet temperature of the indoor unit, outdoor ambient temperature and domestic hot water temperature) and in schedule timer programming mode.

32. TEMPERATURE ADJUST BUTTONS bi and bj These multi-purpose buttons are used to adjust the current set

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

33. DOMESTIC HOT WATER TEMPERATURE ADJUST BUTTONS

wbi and wbj

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

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

34. QUIET MODE BUTTON

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

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

operable.

Setting up the controller

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

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

Setting the clock

1 Hold down the pr button for 5 seconds.

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

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

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

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

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

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

week. To leave this procedure without saving, press the pr button.

If no button is pressed for 5 minutes the clock and day of the week will return to their previous setting.

NOTE

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

Setting the schedule timer

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

consulting the schedule timer" on page 7.

Description of the operation modes

Space heating operation (

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

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

Startup (d)

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

d is displayed.

Defrost (d)

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

EKHBH/X008AA

Indoor unit for air to water heat pump system and options

4PW39351-1C

Operation manual

Space cooling operation (c)

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

NOTE

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

page 5).

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

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

Domestic water heating operation (w)

In this mode, the indoor unit will deliver hot water to the domestic hot water tank when the space heating or space cooling operation has reached its temperature set point. When necessary and when allowed by the booster heater schedule timer (refer to "Programming

quiet mode, booster heating or domestic water heating" on page 9),

the booster heater provides auxiliary heating for the domestic hot water tank.

NOTE

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

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

on page 5).

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

■ When the w icon is blinking, hot water is delivered to the domestic hot water tank by the solar kit option and not by the AD indoor unit. Refer to installation manual of the EKSOLHW solar kit.

Powerful domestic water heating operation

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

This function remains available in solar operation.

Quiet mode operation (s)

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

Controller operations

Manual operation

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

timer operation" on page 6).

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

Switching on and setting space cooling (c) and heating (h) 1 Use the = button to select space cooling (c) or space heating

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

water temperature set point.

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

temperature.

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

"Field settings" on page 10). However, the temperature for

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

settings" on page 10).

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

NOTE

3 Switch on the unit by pushing the

NOTE

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

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

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

y button.

The operation LED 0 lights up.

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

Operation manual

Indoor unit for air to water heat pump system and options

EKHBH/X008AA

4PW39351-1C

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 actual

temperature set point and subsequently, to set the correct temperature.

The actual temperature set point only appears on the display after pressing one of the buttons wi or wj. If no button is pressed for 5 seconds, the temperature set point will automatically disappear from the display again.

Temperature range for domestic water heating: 30°C to 78°C

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

Icon w disappears from the display.

NOTE

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

Selecting powerful domestic water heating operation 1 Press

v for 5 seconds to activate powerful domestic water

heating operation. Icons w and m start ﬂashing.

Powerful domestic water heating is deactivated automatically when 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 "Field

settings" on page 10), the s button will not be operable.

Selecting weather dependent set point operation (only in heating mode)

1 Press the ba button to select weather dependent set point

operation. Icon a appears on the display as well as the shift value. The

shift value is not shown in case it is 0.

2 Use the bi and bj buttons to set the shift value.

Range for the shift value: –5°C to +5°C

Displaying actual temperatures 1 Push the ba button for 5 seconds.

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

2 Use the pi and pj buttons to display:

• The outdoor temperature (u icon is ﬂashing).

• The domestic hot water tank temperature (w icon is ﬂashing).

• The outgoing water temperature (= are ﬂashing).

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

Schedule timer operation

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

The schedule timer always follows the last command until a new command is given. This means that the user can temporarily overrule the last executed programmed command by manual operation (Refer to "Manual operation" on page 5). The schedule timer will regain control over the installation as soon as the next programmed command of the schedule timer occurs.

The schedule timer is enabled (p icon displayed) or disabled (p icon not displayed), by pressing the pr button.

NOTE

To set up the SCHEDULE TIMER refer to chapter "Programming and

consulting the schedule timer" on page 7.

What can the schedule timer do?

The schedule timer allows the programming of:

1. Space heating and space cooling (refer to "Programming space

NOTE

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

y button. The y button only overrules the

schedule timer until the next programmed action.

■ If the auto restart function is disabled, the schedule timer will not be activated when power returns to the unit after a power supply failure. Press the

pr button to enable the schedule timer

again.

■ When power returns after a power supply failure, the auto restart function reapplies the user interface settings at the time of the power supply failure.

It is therefore recommended to leave the auto restart function enabled.

■ The programmed schedule is time driven. Therefore, it is essential to set the clock and the day of the week correctly. Refer to "Setting the clock" on page 4.

■ Manually adjust the clock for summertime and wintertime. Refer to "Setting the clock" on page 4.

■ A power failure exceeding 1 hour will reset the clock and the day of the week. The schedule timer will continue operation, but with a disordered clock. Refer to "Setting the clock" on page 4 to adjust the clock and the day of the week.

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

cooling or space heating" on page 8)

Switch on the desired mode at a scheduled time, in combination with a set point (weather dependent or manually set). Five actions per weekday can be programmed, totalling 35 actions.

When the unit is connected to an external room thermostat, the schedule timer for space cooling and space heating is overruled by the external room thermostat.

EKHBH/X008AA

Indoor unit for air to water heat pump system and options

4PW39351-1C

2. Quiet mode (refer to "Programming quiet mode, booster heating

or domestic water heating" on page 9)

Switch the mode on or off at a scheduled time. Five actions can be programmed per mode. These actions are repeated daily.

3. Booster heating (refer to "Programming quiet mode, booster

heating or domestic water heating" on page 9)

Allow or disallow booster heating at a scheduled time. Five actions can be programmed per mode. These actions are repeated daily.

Operation manual

+ 15 hidden pages