Daikin EKHBH016AB User manual

OPERATION MANUAL
EKHBH016AB
EKHBX016AB
Indoor unit for hot water heat pump system
and options

Operation manual
1
EKHBH/X016AB
Indoor unit for hot water heat pump system and options
C
ONTENTS 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 ................................................................................... 15
Maintenance ...................................................................................16
Important information regarding the refrigerant used...............................16
Maintenance activities..............................................................................16
Standstill ..................................................................................................16
Troubleshooting .............................................................................16
Disposal requirements ..................................................................16
I
NTRODUCTION
Thank you for purchasing this hot water heat pump system indoor
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.
This unit
The hot water heat pump system indoor unit is the indoor part of the
reversible hot 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 hot water heat pump system indoor unit range consists of two
main versions: a heating/cooling (EKHBX) version and a heating
only (EKHBH) version.
Both versions can optionally be 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.
Options
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.
EKHBH016AB***
EKHBX016AB***
Indoor unit for hot water heat pump system and
options
Operation manual
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.
For "Checks before initial start-up" and "Initial start-up"
procedures refer to the installation manual of this unit.
NOTE
An EKHBH/X016 AB indoor unit can only be connected
to an ERHQ0* AA -series outdoor unit.
unit.

EKHBH/X016AB
Indoor unit for hot water heat pump system and options
Operation manual
2
O
PERATING THE UNIT
I
NTRODUCTION
The hot water 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 hot water 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 optional 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 hot water is only heated up to the
domestic hot water temperature you require.
Start with a low domestic hot water temperature set point
(e.g. 45°C), and only increase if you feel that the domestic
hot water supply temperature is not sufficient.
■ Make sure 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.
O
PERATING THE DIGITAL CONTROLLER
Operating the EKHB* unit comes down to operating the digital
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 (backup heater in
the indoor unit or a domestic hot water tank with a booster heater).
Basic controller functions
The basic controller functions are:
■ Tur 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).
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. heat pump tariff application).
Clock function
The clock functions are:
■ 24 hour real time clock.
■ Day of the week indicator.
Schedule timer function
The schedule timer function allows the user to schedule the
operation of the installation according to a daily or a weekly program.
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.
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 Daikin dealer for more
information on permission levels.
NOTE
(*) The functions 'space cooling' and 'domestic water
heating' can only be selected when the corresponding
equipment is installed.

Operation manual
3
EKHBH/X016AB
Indoor unit for hot water heat pump system and options
Name and function of buttons and icons
1 COOLING/HEATING ON/OFF BUTTON
y
The ON/OFF button starts or stops the heating or cooling
function of the unit.
When the unit is connected with an external room thermostat,
this button is not operable and the icon
e
is shown.
Pressing the ON/OFF button consecutively too many times may
cause malfunction of the system (maximum 20 times per hour).
2 OPERATION LED
0
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.
3 OPERATION MODE ICONS
hcws
These icons indicate the current operation mode(s): space
heating (
h
), space cooling (
c
), domestic water heating (
w
) or
quiet mode (
s
). Within limits, different modes can be combined,
e.g. space heating and domestic water heating. The
corresponding mode icons will be displayed simultaneously.
In a heating only installation, the
c
icon will never be displayed.
If the domestic hot water tank is not installed, the
w
icon will
never be displayed.
If the solar option is installed and active, the
w
icon will be
blinking.
4 EXTERNAL CONTROL ICON
e
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.
5 DAY OF THE WEEK INDICATOR
1234567
This indicator shows the current weekday.
When reading or programming the schedule timer, the indicator
shows the set day.
6 CLOCK DISPLAY
8
The clock display shows the current time.
When reading or programming the schedule timer, the clock
display shows the action time.
7 SCHEDULE TIMER ICON
p
This icon indicates that the schedule timer is enabled.
8 ACTION ICONS
q
These icons indicate the programming actions for each day of
the schedule timer.
9 OFF ICON
x
This icon indicates that the OFF action is selected when
programming the schedule timer.
10 INSPECTION REQUIRED
k
and
l
These icons indicate that inspection is required on the
installation. Consult your Daikin dealer.
11 SET TEMPERATURE DISPLAY
9
The display shows the current set temperature of the
installation.
12 SETTING
$
Not used. For installation purposes only.
13 NOT AVAILABLE
n
This icon is displayed whenever a non-installed option is
addressed or a function is not available.
14 DEFROST/STARTUP MODE ICON
d
This icon indicates that the defrost/startup mode is active.
15 COMPRESSOR ICON
ç
This icon indicates that the compressor in the outdoor unit of the
installation is active.
16 BACKUP HEATER STEP ONE
(
OR STEP TWO
§
These icons indicate that the backup heater is operating on low
capacity (
(
) or on high capacity (
§
). The backup heater
provides extra heating capacity in case of low ambient outdoor
temperature (high heating load).
17 BOOSTER HEATER ICON
m
This icon indicates that the booster heater is active. The booster
heater provides auxiliary heating for the domestic hot water
tank.
The booster heater is located in the domestic hot water tank.
The icon is not used when the domestic hot water tank is not
installed.
18 PUMP ICON
é
This icon indicates that the circulation pump is active.
19 OUTDOOR TEMPERATURE DISPLAY
u
When this icon is flashing, the outdoor ambient temperature is
displayed.
20 WEATHER DEPENDENT SET POINT ICON
a
This icon indicates that the controller will adapt the temperature
set point automatically, based on the outdoor ambient
temperature.
21 TEMPERATURE ICON
b
This icon is displayed when the water outlet temperature of the
indoor unit, the outdoor ambient temperature and the domestic
hot water tank temperature are shown.
The icon is also displayed when the temperature set point is set
in schedule timer programming mode.
22 TEST OPERATION ICON
t
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.
NOTE Remark that pushing the ybutton has no influence
on the domestic water heating. Domestic water
heating is only switched on or off by means of the v
button.
1
17
3
5
6
24
8
13
25
26
11
19
21
14
4
7
9
12
10
22
34
27
28
23 20
33
32
31
29
30
2
16
18
15

EKHBH/X016AB
Indoor unit for hot water heat pump system and options Operation manual
4
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 eis 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.
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 z
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 s
This button enables or disables quiet mode.
If the controller is set in permission level 2 or 3 (refer to "Field
settings" on page 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
1Hold down the pr button for 5 seconds.
The clock read-out and the day of week indicator start flashing.
2Use 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.
3Use 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.
4Press 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.
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 (h)
In this mode, heating will be activated as required by the water
temperature set point. The set point can be set manually (refer to
"Manual operation" on page 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
dis 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.
NOTE Remark that pushing the ybutton has no influence
on the domestic water heating. Domestic water
heating is only switched on or off by means of the v
button.
NOTE The clock needs to be set manually. Adjust the setting
when switching from summertime to wintertime and
vice versa.

Operation manual
5EKHBH/X016AB
Indoor unit for hot water heat pump system and options
Space cooling operation (c)
In this mode, cooling will be activated as required by the water
temperature set point.
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.
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.
Two quiet modes are available.
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 nwill appear.
Switching on and setting space cooling (c) and heating (h)
1Use the =button to select space cooling (c) or space heating
(h).
Icon cor happears on the display as well as the corresponding
water temperature set point.
2Use 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
3Switch on the unit by pushing the ybutton.
The operation LED 0lights up.
Selection and setting of domestic water heating (w)
1Use the vbutton to activate domestic water heating (w).
Icon wappears on the display.
2Use 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 80°C
3Press the vbutton to deactivate domestic water heating (w).
Icon wdisappears from the display.
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.
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 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 wicon is blinking, hot water is
delivered to the domestic hot water tank by the
solar kit option and not by the hot water
heat pump system indoor unit. Refer to installation
manual of the EKSOLHW solar kit.
NOTE In heating mode (h), the water temperature set point
can also be weather dependent (icon ais 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.
NOTE When the unit is connected to an external room
thermostat, buttons =and yare not operable and
the icon eis shown. In this case, the external room
thermostat switches the unit on or off and determines
the operation mode (space cooling or space heating).

EKHBH/X016AB
Indoor unit for hot water heat pump system and options Operation manual
6
Selecting powerful domestic water heating operation
1Press vfor 5 seconds to activate powerful domestic water
heating operation.
Icons wand mstart flashing.
Powerful domestic water heating is deactivated automatically
when the set point for the domestic hot water is reached.
Selecting quiet mode operation (s)
1Use the sbutton to activate quiet mode operation (s).
Icon sappears on the display.
If the controller is set in permission level 2 or 3 (refer to "Field
settings" on page 10), the sbutton will not be operable.
Selecting weather dependent set point operation (only in
heating mode)
1Press the ba button to select weather dependent set point
operation.
Icon aappears on the display as well as the shift value. The
shift value is not shown in case it is 0.
2Use the bi and bj buttons to set the shift value.
Range for the shift value: –5°C to +5°C
Displaying actual temperatures
1Push the ba button for 5 seconds.
The bicon and the outgoing water temperature are displayed.
The icons land =are flashing.
2Use the pi and pj buttons to display:
• The outdoor temperature (uicon is flashing).
•The domestic hot water tank temperature (wicon 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 (picon displayed) or disabled (picon
not displayed), by pressing the pr button.
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:
1Space heating and space cooling (refer to "Programming space
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.
2Quiet 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.
3Booster 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.
4Domestic water heating (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.
NOTE Remark that pushing the ybutton has no influence
on the domestic water heating. Domestic water
heating is only switched on or off by means of the v
button.
NOTE ■Only use the pr button to enable or disable the
schedule timer. The schedule timer overrules the
ybutton. The ybutton 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.
NOTE 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.
■The programmed actions are not stored according to
their timing but according to the time of programming.
This means that the action that was programmed first
gets action number 1, even though it is executed after
other programmed action numbers.
■When the schedule timer switches space heating or
space cooling x, the controller will also be
switched off. Note that this has no influence on
domestic water heating.

Operation manual
7EKHBH/X016AB
Indoor unit for hot water heat pump system and options
What can the schedule timer NOT do?
The schedule timer can not change the operation mode from space
cooling to space heating or vice versa.
How to interpret the programmed actions
To be able to understand the behaviour of your installation when the
schedule timer is enabled, it is important to keep in mind that the
"last" programmed command overruled the "preceding" programmed
command and will remain active until the "next" programmed
command occurs.
Example: imagine the actual time is 17:30 and actions are
programmed at 13:00, 16:00 and 19:00. The "last" programmed
command (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 last
programmed command. It is clear that the "last" programmed
command may date from the day before. Refer to "Consulting
programmed actions" on page 9.
Programming and consulting the schedule
timer
Getting started
Programming the schedule timer is flexible (you can add, remove or
alter programmed actions whenever required) and straightforward
(programming steps are limited to a minimum). However, before
programming the schedule timer, remind:
■Familiarise yourself with the icons and the buttons.You will need
them when programming. Refer to "Name and function of
buttons and icons" on page 3.
■Fill out the form at the very end of this manual. This form can
help you define the required actions for each day. Keep in mind
that:
- In the space cooling/heating program, 5 actions can be
programmed per weekday. The same actions are repeated
on a weekly basis.
- In the domestic water heating, booster heater and quiet
mode program, 5 actions can be programmed per mode.The
same actions are repeated on a daily basis.
■Take your time to enter all data accurately.
■Tr y to program the actions in a chronological way: start with
action 1 for the first action and end with the highest number for
the last action. This is not a requirement but will simplify the
interpretation of the program later.
■If 2 or more actions are programmed for the same day and at the
same time, only the action with the highest action number will be
executed.
■You can always alter, add or remove the programmed actions
later.
■When programming heating actions (time and set point), cooling
actions are added automatically at the same time but with the
predefined default cooling set point. Conversely, when
programming cooling actions (time and setpoint), heating
actions are added automatically at the same time but with the
default heating set point.
The set points of these automatically added actions can be
adjusted by programming the corresponding mode. This means
that after programming heating, you should also program the
corresponding cooling set points and vice versa.
NOTE During schedule timer operation, someone may have
altered the actual settings manually (in other words,
the "last" command was overruled manually). The icon
p, indicating the schedule timer operation, may still be
displayed, giving the impression that the "last"
command settings are still active. The "next"
programmed command will overrule the altered
settings and return to the original program.
Due to the fact that the schedule timer cannot switch
between operation modes (cooling or heating) and the fact
that each programmed action implies a cooling setpoint
and a heating setpoint, the following situations may occur:
■when the schedule timer is active in heating mode,
and the mode is changed manually to cooling (by
means of the =button), the operation mode will
from then on remain cooling and program actions will
follow the corresponding cooling setpoints. Returning
to heating mode needs to be carried out manually (by
means of the =button).
■when the schedule timer is active in cooling mode,
and the mode is changed manually to heating (by
means of the =button), the operation mode will
from then on remain heating and program actions will
follow the corresponding heating setpoints. Returning
to cooling mode needs to be carried out manually (by
means of the =button).
The above proves the importance of programming both
cooling and heating setpoints for each action. If you do not
program these setpoints, the predefined default values will
be used.

EKHBH/X016AB
Indoor unit for hot water heat pump system and options Operation manual
8
Programming
Programming space cooling or space heating
Programming space cooling or space heating is carried out as
follows:
1Use the =button to select the operation mode (cooling or
heating) you want to program.
2Press the <button.
The actual mode is blinking.
3Press the <button to confirm the selected mode.
The actual day is blinking.
4Select the day you would like to consult or to program by means
of the pi and pj buttons.
The selected day is blinking.
5Press the <button to confirm the selected day.
The first programmed action of the selected day appears.
6Use the pi and pj buttons to consult the other
programmed actions of that day.
This is called the readout mode. Empty program actions (e.g. 4
and 5) are not displayed.
7Press the <button for 5 seconds to enter the programming
mode.
8Use the <button to select the action number you would like to
program or to modify.
9Use the ba button to select:
-x: to switch cooling or heating and the controller off.
-9: set the temperature by means of the bi and
bj buttons.
-a: to select automatic temperature calculation (only in
heating mode).
10 Use the pi and pj buttons to set the correct action time.
11 Repeat steps 8to 10 to program the other actions of the
selected day.
When all actions have been programmed, make sure that the
display shows the highest action number you would like to save.
12 Press the <button for 5 seconds to store the programmed
actions.
If the <button is pressed when action number 3 is displayed,
actions 1, 2 and 3 are stored but 4 and 5 are deleted.
You automatically return to step 6.
By pressing the pr button several times, you return to previous
steps in this procedure and finally return to normal operation.
NOTE Programming space cooling or space heating are both
done in the same way. At the start of the programming
procedure space cooling or space heating is selected.
After that, you have to return to the start of the
programming procedure to program the other
operation mode.
5 sec
5 sec
NOTE Returning to previous steps in the programming
procedure without saving modified settings is done by
pressing the pr button.

Operation manual
9EKHBH/X016AB
Indoor unit for hot water heat pump system and options
Programming quiet mode, booster heating or domestic water
heating
Programming domestic water heating, booster heater or quiet mode
is carried out as follows:
1Press the <button.
The actual mode is blinking.
2Use the pi and pj buttons to select the mode you want
to program (quiet mode s, booster heating mor domestic
water heating w).
The selected mode is blinking.
3Press the <button to confirm the selected mode.
The first programmed action is displayed.
4Use the pi and pj buttons to consult the programmed
actions.
This is called the readout mode. Empty program actions (e.g. 4
and 5) are not displayed.
5Press the <button for 5 seconds to enter the programming
mode.
6Use the <button to select the action number you would like to
program or to modify.
7Use the pi and pj buttons to set the correct action time.
8Use the ba button to select or deselect xas action.
9Repeat steps 6to 8to program the other actions of the selected
mode.
When all actions have been programmed, make sure that the
display shows the highest action number you would like to save.
10 Press the <button for 5 seconds to store the programmed
actions.
If the <button is pressed when action number 3 is displayed,
actions 1, 2 and 3 are stored but 4 and 5 are deleted.
You automatically return to step 4. By pressing the pr button
several times, you return to previous steps in this procedure and
finally return to normal operation.
Consulting programmed actions
Consulting space cooling or space heating actions
Consulting space cooling or space heating is carried out as follows.
1Use the =button to select the operation mode (cooling or
heating) you want to consult.
2Press the <button.
The actual mode is blinking.
3Press the <button to confirm the selected mode.
The actual day is blinking.
4Select the day you would like to consult by means of the pi
and pj buttons.
The selected day is blinking.
5Press the <button to confirm the selected day.
The first programmed action of the selected day appears.
6Use the pi and pj buttons to consult the other
programmed actions of that day.
This is called the readout mode. Empty program actions (e.g. 4
and 5) are not displayed.
By pressing the pr button several times, you return to previous
steps in this procedure and finally return to normal operation.
Consulting domestic water heating, booster heater or quiet
mode
Consulting domestic water heating, booster heater or quiet mode is
carried out as follows.
1Press the <button.
The actual mode is blinking.
2Use the pi and pj buttons to select the mode you want
to consult (quiet mode s, booster heating mor domestic
water heating w).
The selected mode is blinking.
3Press the <button to confirm the selected mode.
The first programmed action is displayed.
4Use the pi and pj buttons to consult the programmed
actions.
This is called the readout mode. Empty program actions (e.g. 4
and 5) are not displayed.
By pressing the pr button several times, you return to previous
steps in this procedure and finally return to normal operation.
NOTE Returning to previous steps in the programming
procedure without saving modified settings is done by
pressing the pr button.
NOTE Consulting space cooling or space heating is done in
the same way. At the start of the consulting procedure
space cooling or space heating is selected. After that,
you have to return to the start of the consulting
procedure to consult the other operation mode.
NOTE Returning to previous steps in this procedure is done
by pressing the pr button.
NOTE Returning to previous steps in this procedure is done
by pressing the pr button.

EKHBH/X016AB
Indoor unit for hot water heat pump system and options Operation manual
10
Tips and tricks
Programming the next day(s)
After confirming the programmed actions of a specific day (i.e. after
pressing the <button for 5 seconds), press the pr button once.You
can now select another day by using the pi and pj buttons
and restart consulting and programming.
Copying programmed actions to next day
In heating/cooling program it is possible to copy all programmed
actions of a specific day to the next day (e.g. copy all programmed
actions from "1" to "2").
To copy programmed actions to the next day, proceed as follows:
1Press the <button.
The actual mode is blinking.
2Use the pi and pj buttons to select the mode you want
to program.
The selected mode is blinking.
You can leave programming by pressing the pr button.
3Press the <button to confirm the selected mode.
The actual day is blinking.
4Select the day you would like to copy to the next day by means
of the pi and pj buttons.
The selected day is blinking.
You can return to step 2by pressing the pr button.
5Press 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 been
copied.
You can return to step 2by pressing the pr button.
Deleting one or more programmed actions
Deleting one or more programmed actions is done at the same time
as storing the programmed actions.
When all actions for one day have been programmed, make sure that
the display shows the highest action number you would like to save.
By pressing the <button for 5 seconds, you store all actions except
those with a higher action number than the one that is displayed.
E.g. when the <button is pressed when action number 3 is
displayed, actions 1, 2 and 3 are stored but 4 and 5 are deleted.
Deleting a mode
1Press the
< button.
The actual mode is blinking.
2Use the pi and pj buttons to select the mode you want
to delete (quiet mode s, booster heating mor domestic water
heating w).
The selected mode is blinking.
3Press the <and ba button simultaneously for 5 seconds to
delete the selected mode.
Deleting a day of the week (cooling or heating mode)
1Use the =button to select the operation mode (cooling or
heating) you want to delete.
2Press the <button.
The actual mode is blinking.
3Press the <button to confirm the selected mode.
The actual day is blinking.
4Select the day you would like to delete by means of the pi
and pj buttons.
The selected day is blinking.
5Press the <and ba button simultaneously for 5 seconds to
delete the selected day.
OPERATING THE REMOTE ALARM
OPTION
The optional EKRP1HB remote alarm address card can be used to
remotely monitor your system.This address card offers 2 voltage free
outputs.
■Output 1 = alarm output: this output will be enabled when your
unit is in error condition.
■Output 2 = ON/OFF output: this output will be enabled when
your unit is in ON condition.
For more details about the wiring connections of this option, refer to
the wiring diagram of the unit.
FIELD SETTINGS
The indoor unit should be configured by the installer to match the
installation environment (outdoor climate, installed options, etc.) and
user demand. Thereto, a number of so called field settings are
available. These field settings are accessible and programmable
through the user interface on the indoor unit.
Each field setting is assigned a 3-digit number or code, for example
[5-03], which is indicated on the user interface display. The first digit
[5] indicates the 'first code' or field setting group. The second and
third digit [03] together indicate the 'second code'.
A list of all field settings and default values is given under "Field
settings table" on page 15. In this same list, we provided for 2
columns to register the date and value of altered field settings at
variance with the default value.
A detailed description of each field setting is given under "Detailed
description" on page 11.
Procedure
To change one or more field settings, proceed as follows.
1Press the zbutton for a minimum of 5 seconds to enter FIELD
SET MODE.
The $icon (3) will be displayed.The current selected field
setting code is indicated ;(2), with the set value displayed to
the right -(1).
2Press the bgi button to select the appropriate field
setting first code.
3Press the bgj button to select the appropriate field
setting second code.
2
3
1

Operation manual
11 EKHBH/X016AB
Indoor unit for hot water heat pump system and options
4Press the pfi button and pfj button to change
the set value of the select field setting.
5Save the new value by pressing the pr button.
6Repeat step 2 through 4 to change other field settings as
required.
7When finished, press the zbutton to exit FIELD SET MODE .
Detailed description
[0] User permission level
If required, certain user interface buttons can be made unavailable for
the user.
Three permission levels are defined (see the table below). Switching
between level 1 and level 2/3 is done by simultaneously pressing
buttons pfi and pfj immediately followed by
simultaneously pressing buttons sand ba, and keeping all 4
buttons pressed for at least 5 seconds (in normal mode). Note that no
indication on the user interface is given. When level 2/3 is selected,
the actual permission level — either level 2 or level 3 — is
determined by the field setting [0-00].
[1] Weather dependent set point (heating operation only)
The weather dependent set point field settings define the parameters
for the weather dependent operation of the unit. When weather
dependent operation is active the water temperature is determined
automatically depending on the outdoor temperature: colder outdoor
temperatures will result in warmer water and vice versa. During
weather dependent operation, the user has the possibility to shift up
or down the target water temperature by a maximum of 5°C. See
"Selecting weather dependent set point operation (only in heating
mode)" on page 6 more details on weather dependent operation.
■[1-00] Low ambient temperature (Lo_A): low outdoor
temperature.
■[1-01] High ambient temperature (Hi_A): high outdoor
temperature.
■[1-02] Set point at low ambient temperature (Lo_Ti): the
target outgoing water temperature when the outdoor
temperature equals or drops below the low ambient
temperature (Lo_A).
Note that the Lo_Ti value should be higher than Hi_Ti, as for
colder outdoor temperatures (i.e. Lo_A) warmer water is
required.
■[1-03] Set point at high ambient temperature (Hi_Ti): the
target outgoing water temperature when the outdoor
temperature equals or rises above the high ambient
temperature (Hi_A).
Note that the Hi_Ti value should be lower than Lo_Ti, as for
warmer outdoor temperatures (i.e. Hi_A) less warm water
suffices.
[2] Disinfection function
Applies only to installations with a domestic hot water tank.
The disinfection function disinfects the domestic hot water tank by
periodically heating the domestic water to a specific temperature.
■[2-00] Operation interval: day(s) of the week at which the
domestic water should be heated.
■[2-01] Status: defines whether the disinfection function is
turned on (1) or off (0).
■[2-02] Start time: time of the day at which the domestic water
should be heated.
■[2-03] Set point: high water temperature to be reached.
■[2-04] Interval: time period defining how long the set point
temperature should be maintained.
NOTE Changes made to a specific field setting are only
stored when the pr button is pressed. Navigating to a
new field setting code or pressing the zbutton will
discard the change made.
NOTE ■Before shipping, the set values have been set as
shown under "Field settings table" on page 15.
■When exiting FIELD SET MODE, "88" may be
displayed on the user interface LCD while the unit
initialises itself.
Button
Permission level
123
Quiet mode button soperable — —
Weather dependent
set point button ba operable — —
Schedule timer
enable/disable button pr operable operable —
Programming button <operable — —
Time adjust buttons pf
i
pf
j
operable — —
Inspection/test
operation button zoperable — —
TtTarget water temperature
TAAmbient (outdoor) temperature
= Shift value
The disinfection function field settings must be configured
by the installer according to national and local regulations.
TDHW Domestic hot water temperature
TUUser set point temperature (as set on the user interface)
THHigh set point temperature [2-03]
t Time
Lo_Ti
Lo_A Hi_A TA
Tt
+ 05
00
– 05
Hi_Ti Shift value
00.00 22.00 24.0001.00 23.00 t
TDHW
TH
TU
[2-02]
[2-03] [2-04]

EKHBH/X016AB
Indoor unit for hot water heat pump system and options Operation manual
12
[3] Auto restart
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.
Note that with the function 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.
■[3-00] Status: defines whether the auto restart function is
turned ON (0) or OFF (1).
[4] Backup heater operation and space heating off temperature
Backup heater operation — Applies only to units with optional
backup heater installed.
The operation of the backup heater can altogether be enabled or
disabled, or it can be disabled depending on operation of the booster
heater.
■[4-00] Status: defines whether backup heater operation is
enabled (1) or disabled (0).
■[4-01] Priority: defines whether backup heater and booster
heater can operate simultaneously (0), or if the booster
heater operation has priority over the backup heater
operation (1).
Space heating off temperature
■[4-02] Space heating off temperature: outdoor temperature
above which space heating is turned off, to avoid
overheating.
[5] Equilibrium temperature and space heating priority
temperature
Equilibrium temperature — The 'equilibrium temperature' field
settings apply to operation of the optional backup heater. When the
equilibrium temperature function is enabled, operation of the backup
heater is restricted to low outdoor temperatures, i.e. when the
outdoor temperature equals or drops below the specified equilibrium
temperature. When the function is disabled, operation of the backup
heater is possible at all outdoor temperatures. Enabling this function
reduces the working time of the backup heater.
■[5-00] Equilibrium temperature status: specifies whether the
equilibrium temperature function is enabled (1) or
disabled (0).
■[5-01] Equilibrium temperature: outdoor temperature below
which operation of the backup heater is allowed.
Space heating priority temperature (applies only to installations
with a domestic hot water tank) — The 'space heating priority
temperature' field settings apply to operation of the 3-way valve and
the booster heater in the domestic hot water tank.
When the space heating priority function is enabled, it is assured that
the full capacity of the heat pump is used for space heating only
when the outdoor temperature equals or drops below the specified
space heating priority temperature, i.e. low outdoor temperature. In
this case the domestic water will only be heated by the booster
heater.
■[5-02] Space heating priority status: specifies whether space
heating priority is enabled (1) or disabled (0).
■[5-03] Space heating priority temperature: outdoor
temperature below which the domestic water will be heated
by the booster heater only, i.e. low outdoor temperature.
■[5-04] Set point correction for domestic hot water
temperature: set point correction for the desired domestic hot
water temperature, to be applied at low outdoor temperature
when space heating priority is enabled. The corrected
(higher) set point will make sure that the total heat capacity
of the water in the tank remains approximately unchanged,
by compensating for the colder bottom water layer of the tank
(because the heat exchanger coil is not operational) with a
warmer top layer.
[6] DT for domestic water heating
Applies only to installations with a domestic hot water tank.
The 'DT (delta temperature) for domestic water heating' field settings
determine the temperatures at which heating of the domestic water
by the heat pump will be started (i.e., the heat pump ON
temperature) and stopped (i.e., the heat pump OFF temperature).
When the domestic hot water temperature drops below the heat
pump ON temperature (THP ON), heating of the domestic water by the
heat pump will be started. As soon as the domestic hot water
temperature reaches the heat pump OFF temperature (THP OFF) or
the user set point temperature (TU), heating of the domestic water by
the heat pump will be stopped (by switching the 3-way valve).
The heat pump OFF temperature, and the heat pump ON
temperature, and its relation with field settings [6-00] and [6-01] are
explained in the illustration below.
■[6-00] Start: temperature difference determining the heat
pump ON temperature (THP ON). See illustration.
■[6-01] Stop: temperature difference determining the heat
pump OFF temperature (THP OFF). See illustration.
NOTE It is therefore recommended to leave the auto restart
function enabled.
NOTE When the priority field setting is set to ON (1),
space heating performance of the system
might be decreased at low outdoor
temperatures, since in case of domestic water
heating demand the backup heater will not be
available for space heating (space heating will
still be provided by the heat pump).
When the priority field setting is set to OFF (0),
make sure that electrical power consumption
does not exceed supply limits.
Tset Domestic hot water set point temperature
TUUser set point (as set on the user interface)
TAAmbient (outdoor) temperature
Space heating priority
TUUser set point temperature (as set on the user interface)
THP MAX Maximum heat pump temperature at sensor in domestic hot
water tank (55°C)
THP OFF Heat pump OFF temperature
THP ON Heat pump ON temperature
TA
Tset
TU
[5-03]
[5-04]
TU > THP MAX
T(°C)
70 TU
55 THP MAX
48 THP OFF
41 THP ON
[6-01]
[6-00]
TU < THP MAX
T(°C)
45 TU= THP OFF
55 THP MAX
38 THP ON
[6-00]
TU = 45°C
[6-01] = 7°C
[6-00] = 7°C
TU = 70°C
[6-01] = 7°C
[6-00] = 7°C

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13 EKHBH/X016AB
Indoor unit for hot water heat pump system and options
[7] Domestic hot water step length
Applies only to installations with a domestic hot water tank.
When the domestic water is heated and the domestic hot water set
point temperature (as set by the user) has been reached, the booster
heater will continue to heat the domestic hot water to a temperature a
few degrees above the set point temperature, i.e. the booster heater
OFF temperature.These extra degrees are specified by the domestic
hot water step length field setting. Correct setting prevents the
booster heater from repeatedly turning on and off (i.e. chattering) to
maintain the domestic hot water set point temperature. Note: the
booster heater will turn back on when the domestic hot water
temperature drops 2°C (fixed value) below the booster heater OFF
temperature.
■[7-00] Domestic hot water step length: temperature
difference above the domestic hot water set point
temperature before the booster heater is turned off.
[8] Domestic water heating mode timer
Applies only to installations with a domestic hot water tank.
The 'domestic water heating mode timer' field settings defines the
minimum and maximum domestic water heating times, and minimum
time between two domestic water heating cycli.
■[8-00] Minimum running time: specifies the minimum time
period during which domestic water heating should be
activated, even when the target domestic hot water
temperature has already been reached.
■[8-01] Maximum running time: specifies the maximum time
period during which domestic water heating can be activated,
even when the target domestic hot water temperature has
not yet been reached.
Note that when the unit is configured to work with a room
thermostat (refer to the installation manual), the maximum
running timer will only be taken into account when there is a
request for space cooling or space heating. When there is no
request for room cooling or room heating, domestic water
heating by the heat pump will continue until the "heat pump
OFF temperature" (see field settings [5]) is reached. When
no room thermostat is installed, the timer is always taken into
account.
■[8-02] Anti-recycling time: specifies the minimum required
interval between two domestic water heating cycli.
■[8-03] Booster heater delay time: specifies the start-up time
delay of the booster heater operation after start of the heat
pump domestic water heating operation.
NOTE If the schedule timer for booster heater (see the
operation manual) is active, the booster heater will only
operate if allowed by this schedule timer.
BH Booster heater
HP Heat pump. If heating up time by the heat pump takes too
long, auxiliary heating by the booster heater can take place
TBH OFF Booster heater OFF temperature (TU+ [7-00])
TBH ON Booster heater ON temperature (TBH OFF – 2°C)
THP MAX Maximum heat pump temperature at sensor in domestic hot
water tank
THP OFF Heat pump OFF temperature (THP MAX – [6-01])
THP ON Heat pump ON temperature (THP OFF – [6-00])
TDHW Domestic hot water temperature
TUUser set point temperature (as set on the user interface)
t Time
t
TBH ON
TDHW
THP ON
THP OFF
THP MAX
TU
TBH OFF
[6-01]
[6-00]
[7-00]
TU=70°C
[7-00] = 3°C
[6-01] = 7°C
[6-00] = 7°C
HP BH HP
0
10
20
30
40
41
48
55
60
71
70
73
1 Domestic water heating (1 = active, 0 = not active)
2 Hot water request (1 = request, 0 = no request)
t Time
1 Booster heater operation (1 = active, 0 = not active)
2 Heat pump domestic water heating operation (1 = request, 0 =
no request)
3 Hot water request (1 = request, 0 = no request)
t Time
t
1
0
1
0
[8-01] [8-02]
[8-00]
t
1
0
1
0
1
0
[8-03]
3

EKHBH/X016AB
Indoor unit for hot water heat pump system and options Operation manual
14
Example
[9] Cooling and heating set points
The purpose of this field setting is to prevent the user from selecting
a wrong (i.e., too hot or too cold) leaving water temperature. Thereto
the heating temperature set point range and the cooling temperature
set point range available to the user can be configured.
■[9-00] Heating set point upper limit: maximum leaving water
temperature for heating operation.
■[9-01] Heating set point lower limit: minimum leaving water
temperature for heating operation.
■[9-02] Cooling set point upper limit: maximum leaving water
temperature for cooling operation.
■[9-03] Cooling set point lower limit: minimum leaving water
temperature for cooling operation.
[A] Quiet mode
This field setting allows to select the desired quiet mode. Two quiet
modes are available: quiet mode A and quiet mode B.
In quiet mode A, priority is given to the outdoor unit operating quietly
under all circumstances. Fan and compressor speed (and thus
performance) will be limited to a certain percentage of the speed at
normal operation. In certain cases, this might result in reduced
performance.
In quiet mode B, quiet operation might be overridden when higher
performance is required. In certain cases, this might result in less
quiet operation of the outdoor unit to meet the requested
performance.
■[A-00] Quiet mode type: defines whether quiet mode A (0) or
quiet mode B (2) is selected.
■[A-01] Parameter 01: do not change this setting. Leave it set
to its default value.
[C] Solar priority mode
For information concerning the EKSOLHW solar kit, refer to the
installation manual of that kit.
NOTE ■Take care that [8-03] is always smaller than the
maximum running time [8-01].
■By adapting the booster heater delay time versus
the maximum running time, an optional balance
can be found between the energy efficiency and
the heat up time.
■However, if the booster heater delay time is set
too high, it might take a long time before the
domestic hot water reaches its set temperature
upon domestic water heating mode request.
Energy saving settings Quick heating settings (default)
[8-01] 20~95 min 30 min
[8-03] 20~95 min 20 min
■In case of a floor heating application, it is important to
limit the maximum leaving water temperature at
heating operation according to the specifications of
the floor heating installation.
■In case of a floor cooling application, it is important to
limit the minimum leaving water temperature at
cooling operation to 16°C to prevent condensation on
the floor.
Do not set other values than the ones mentioned.

Operation manual
15 EKHBH/X016AB
Indoor unit for hot water heat pump system and options
Field settings table
First
code
Second
code Setting name
Installer setting at variance with default value Default
value Range Step UnitDate Value Date Value
0User permission level
00 User permission level 3 2~3 1 —
1Weather 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
2Disinfection 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 70 40~80 5 °C
04 Interval 10 5~60 5 min
3Auto restart
00 Status 0 (ON) 0/1 — —
4Backup heater operation and space heating off temperature
00 Status 1 (ON) 0/1 — —
01 Priority 0 (OFF) 0/1 — —
02 Space heating off temperature 35 14~35 1 °C
5Equilibrium temperature and space heating priority temperature
00 Equilibrium temperature status 1 (ON) 0/1 — —
01 Equilibrium temperature 0 –15~20 1 °C
02 Space heating priority status 0 (OFF) 0/1 — —
03 Space heating priority temperatures 0 –15~20 1 °C
04 Set point correction for domestic hot water
temperature 10 0~20 1 °C
6DT for domestic water heating
00 Start 5 1~20 1 °C
01 Stop 2 2~10 1 °C
7Domestic hot water step length
00 Domestic hot water step length 3 2~4 1 °C
8Domestic water heating mode timer
00 Minimum running time 5 0~20 1 min
01 Maximum running time 30 5~95 5 min
02 Anti-recycling time 3 0~10 0.5 hour
03 Booster heater delay time 20 20~95 5 min
9Cooling and heating set point ranges
00 Heating set point upper limit 55 37~55 1 °C
01 Heating set point lower limit 15/25(a) 15~37 1 °C
02 Cooling set point upper limit 20 18~22 1 °C
03 Cooling set point lower limit 5 5~18 1 °C
AQuiet mode
00 Quiet mode type 0 0/2 — —
01 Parameter 01 3———
CSolar priority mode
00 Solar priority mode setting 0 0~2 1 —
(a) With optional backup heater installed: 15°C. Without optional backup heater installed: 25°C

EKHBH/X016AB
Indoor unit for hot water heat pump system and options Operation manual
16
MAINTENANCE
Important information regarding the
refrigerant used
This product contains fluorinated greenhouse gases covered by the
Kyoto Protocol.
Refrigerant type: R410A
GWP(1) value: 1975
(1) GWP = global warming potential
Periodical inspections for refrigerant leaks may be required
depending on European or local legislation. Please contact your local
dealer for more information.
Maintenance activities
In order to ensure optimal availability of the unit, a number of checks
and inspections on the unit and the field wiring have to be carried out
at regular intervals, preferably yearly. This maintenance should be
carried out by your local Daikin technician.
Besides keeping the remote controller clean by means of a soft damp
cloth, no maintenance is required by the operator.
Standstill
TROUBLESHOOTING
The guidelines below might help to solve your problem. If you cannot
solve the problem, consult your installer.
■No readings on the remote controller (blank display)
Check if the mains power is still connected to your installation.
■One of the error codes appears
Consult your local Daikin dealer.
■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.
DISPOSAL REQUIREMENTS
Dismantling of the unit, treatment of the refrigerant, of oil and of other
parts must be done in accordance with relevant local and national
legislation.
Do not try to dismantle the system yourself: the dismantling of the
system, treatment of the refrigerant, of oil and other parts must be
done by a qualified installer in accordance with relevant local and
national legislation.
Units must be treated at a specialized treatment facility for re-use,
recycling and recovery. By ensuring this product is disposed off
correctly, you will help to prevent potential negative consequences for
the environment and human health. Please contact the installer or
local authority for more information.
During longer periods of standstill, e.g. during summer with
a heating only application, it is very important NOT TO
SWITCH OFF THE POWER SUPPLY towards the unit.
Switching off the power supply stops the automatic
repetitive movement of the motor in order to prevent it from
getting jammed.
Your product is marked with this symbol. This means
that electrical and electronic products shall not be
mixed with unsorted household waste.

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