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Quiet mode operation (
)
s
Quiet mode operation means that the outdoor unit works at reduced
capacity so that the sound produced by the outdoor unit drops. This
implies that the indoor heating (cooling) capacity will also drop.
Beware of this when a certain level of heating (cooling) is required
indoors.
Two quiet modes are available.
4.6. 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
timer operation" on page
8).
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
Switching on and setting space heating (
(
c
)
1
Use the
=
button to select space heating (
(
c
).
Icon
h
or
c
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
"5. Field settings" on page
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
"5. Field settings" on page
13).
•
Temperature range for cooling: 5°C to 22°C
CAUTION
The actual operation range depends on the values set on
field setting [9].
These values shall be determined based on the
application.
INFORMATION
In heating mode (
h
) or cooling mode (
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 the controller shows the calculated controller
set point. The
bi
button or
display the actual "shift value" and subsequently, to set the
correct value. 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.
Operation manual
7
"Schedule
n
will appear.
h
) and space cooling
h
) or space cooling
13). However, the temperature for
c
), the water
bj
button can be used to
3
Switch on the unit by pushing the
The operation LED
0
lights up.
INFORMATION
When the unit is connected to an external room
thermostat, buttons
=
and
icon
e
is shown. In this case, the external room
thermostat switches the unit on or off and determines the
operation mode (space heating or space cooling).
Selection and setting of domestic water heating (
1
Use the
v
button to activate domestic water heating (
Icon
w
appears on the display.
2
Use the
wi
or
wj
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
pressed for 5 seconds, the temperature set point will
automatically disappear from the display again.
Temperature range for domestic water heating:
-
For EKHW* only: 30°C to 78°C
-
For EKHTS only: 30°C to 60°C
INFORMATION
The domestic hot water set point set on the controller
is the actual domestic hot water set point ([4-03]=0, 1,
2, or 3) or the domestic hot water storage set point
([4-03]=4, or 5). See
operation (w)" on page
3
Press the
v
button to deactivate domestic water heating (
Icon
w
disappears from the display.
INFORMATION
Remark that pushing the
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.
-
For EKHW* only: Icons
w
and
-
For EKHTS only: Icons
w
and
Powerful domestic water heating is deactivated automatically
when the set point for the domestic hot water is reached.
Selecting quiet mode operation (
1
Use the
s
button to activate quiet mode operation (
Icon
s
appears on the display.
If the controller is set in permission level 2 or 3 (refer to
settings" on page
13), the
s
button will not be operable.
Selecting weather dependent set point operation
ba
1
Press the
button to select weather dependent set point
operation.
Icon
a
appears on the display as well as the calculated water
temperature set point based on the outdoor temperature.
2
Use the
bi
or
bj
button to display the actual shift value
and subsequently, to set the correct value.
The shift value only appears on the display after pressing one of
the buttons
bi
or
bj
seconds, the shift value will automatically disappear from the
display again.
Range for the shift value: –5°C to +5°C
(1) Only applicable for tank with built-in electrical booster heater (EKHW*).
(2) Only applicable for tank without electrical booster heater (EKHTS).
Indoor unit and options for air to water heat pump system
y
button.
y
are not operable and the
w
)
w
).
button to display the actual
wi
or
wj
. If no button is
"Domestic water heating
6.
w
).
y
button has no influence
(1)
m
start flashing
.
(2)
§
start flashing
.
s
)
s
).
"5. Field
. If no button is pressed for 5
EKHBH/X016BB
4PW62573-1 – 10.2010
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