Operation manual
7
EKHBH/XE008BA
Indoor unit for air to water heat pump system and options
4PW56302-1
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.
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
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
). 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.
To set up the SCHEDULE TIMER refer to chapter
consulting the schedule timer" on page 8
.
What can the schedule timer do?
The schedule timer allows the programming of:
1.
Space heating and space cooling (refer to
heating or space cooling" on page 9
)
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.
2.
Quiet mode (refer to
"Programming quiet mode, booster heating
or domestic water heating" on page 10
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 10
Allow or disallow booster heating at a scheduled time. Five
actions can be programmed per mode. These actions are
repeated daily.
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.
■
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
■
Manually adjust the clock for summertime and
wintertime. Refer to
■
A power failure exceeding 2 hours will reset the clock
and the day of the week. The schedule timer will
continue operation, but with a disordered clock. Refer
to
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 heating and
space cooling is overruled by the external room
thermostat.
