Operating The Digital Controller; Features And Functions; Basic Controller Functions; Clock Function - Daikin EKHBH054BA Manuel D'utilisation

O
PERATING THE DIGITAL CONTROLLER
Operating the EKHB* unit comes down to operating the digital
controller.
CAUTION
Never let the digital controller get wet. This may cause an
electric shock or fire.
Never press the buttons of the digital controller with a hard,
pointed object. This may damage the digital controller.
Never inspect or service the digital controller yourself, ask
a qualified service person to do this.

Features and functions

The digital controller is a state of the art controller that offers full
control over your installation. It can control a heating/cooling and a
heating only installation.
Both installations are available in multiple versions which vary in
capacity, electrical supply and installed equipment (with an optional
domestic hot water tank with a booster heater).
Descriptions in this manual that apply to a specific
installation or that depend on the installed equipment,
are marked with an asterisk (*).
Some functions described in this manual may not be
available or should not be available. Ask your installer
or your local dealer for more information on
permission levels.

Basic controller functions

The basic controller functions are:
Turning the unit ON/OFF.
Operation mode change-over:
- space heating (refer to page 5),
- space cooling (refer to page 5) (*),
- domestic water heating (refer to page 5) (*).
Selection of features:
- quiet mode (refer to page 5),
- weather dependent control (refer to page 6).
Temperature set point adjustment (refer to page 6).
(*) The functions 'space cooling' and 'domestic water
heating' can only be selected when the corresponding
equipment is installed.
The digital controller supports a power cut off of maximum 2 hours.
When autorestart is enabled (see "Field settings" on page 11) this
allows a power supply shut down of 2 hours without user intervention
(e.g. benefit kWh rate power supply).

Clock function

The clock functions are:
24 hour real time clock.
Day of the week indicator.

Schedule timer function

The schedule timer function allows the user to schedule the
operation of the installation according to a daily or a weekly program.
Operation manual
3

Name and function of buttons and icons

8 5 6 24
7
9
12
10
23
22
34
29
27
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1. HEATING/COOLING ON/OFF BUTTON
The ON/OFF button starts or stops the heating or cooling
function of the unit.
When the unit is connected with an external room thermostat,
this button is not operable and the icon
Pressing the ON/OFF button consecutively too many times may
cause malfunction of the system (maximum 20 times per hour).
Remark that pushing the
the domestic water heating. Domestic water heating is only
switched on or off by means of the
2. OPERATION LED 0
The operation LED is lit during space heating or space cooling
operation. The LED blinks if a malfunction occurs. When the
LED is OFF, space heating or space cooling are inactive while
the other operation modes can still be active.
3. OPERATION MODE ICONS
These icons indicate the current operation mode(s): space
heating ( h ), space cooling (
quiet mode ( s ). Within limits, different modes can be combined,
e.g. space heating and
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.
4. EXTERNAL CONTROL ICON
This icon indicates that the room thermostat (optional) with
higher priority is controlling your installation. This external room
thermostat can start and stop the space heating/cooling
operation and change the operation mode (heating/cooling).
When the external room thermostat with a higher priority is
connected, the schedule timer for space heating and space
cooling will not function.
When the benefit kWh power rate signal is sent, the centralised
control indication e will flash to indicate that benefit kWh power
rate is active.
5. DAY OF THE WEEK INDICATOR
This indicator shows the current weekday.
When reading or programming the schedule timer, the indicator
shows the set day.
Indoor unit for air to water heat pump system and options
15 18 3 16 2 17 1
4
14
21
19
11
20
13
25
26
33
32
31
y
e is shown.
y button has no influence on
v button.
hcws
c ), domestic water heating ( w
domestic water heating. The
c icon will never be displayed.
w icon will
w icon will be
e
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