EKHBH/X008BB
Indoor unit and options for air to water heat pump system
4PW62571-1A – 05.2011
Operation manual
6
34.
QUIET MODE BUTTON
This button enables or disables quiet mode.
If the controller is set in permission level 2 or 3 (refer to
"5. Field
settings" on page 13
), the quiet mode button will not be
operable.
35.
BIVALENT FUNCTION OR EXTERNAL BACKUP HEATER
ACTIVE
This icon indicates that the bivalent function or external backup
heater permission signal is active.
4.4.
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
button for 5 seconds.
The clock read-out and the day of week indicator start flashing.
2
Use the
and
buttons to adjust the clock.
Each time the
or
button is pressed, the time will
increase/decrease by 1 minute. Keeping the
or
button pressed will increase/decrease the time by 10 minutes.
3
Use the
or
button to adjust the day of the week.
Each time the
or
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
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
"4.7. Programming and
consulting the schedule timer" on page 9
.
4.5.
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 7
) or weather dependent (refer to
"Selecting weather dependent set point operation" on page 8
).
Startup (
)
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
is displayed.
Defrost (
)
In space heating operation or heat pump 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.
Space cooling operation ( )
In this mode, cooling will be activated as required by the water
temperature set point. The set point can be set manually (refer to
"Manual operation" on page 7
) or weather dependent (refer to
"Selecting weather dependent set point operation" on page 8
).
Domestic water heating operation (
)
(1)
Only for [4-03]=0, 1, 2, or 3
In this mode, the indoor unit will heat up the domestic hot water tank
by heat pump when the space heating/space cooling operation has
reached its temperature set point or heat pump domestic water
heating has a higher demand request than space side (depends on
DIP switch setting). When necessary and when allowed by the
booster heater schedule timer (refer to
"Programming space cooling,
quiet mode, or booster heater mode" on page 11
), the booster heater
provides auxiliary heating for the domestic hot water tank.
INFORMATION
The clock needs to be set manually. Adjust the setting
when switching from summertime to wintertime and vice
versa.
INFORMATION
■
Switching between space heating and space cooling
operation can only be done by pressing the
button or by the external room thermostat.
■
Space cooling operation is not possible if the
installation is a "heating only" installation.
(1) When the unit is configured for restricted power supply condition mode,
see
"Appendix" on page 22
.
INFORMATION
■
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 7
).
■
Any domestic water heating operation is impossible
when the domestic hot water tank is not installed.
■
When the
icon is blinking, the domestic hot water is
heating up by the solar kit option and not by the indoor
unit. Refer to installation manual of the EKSOLHW
solar kit.
