Setting Up The Controller; Setting The Clock; Setting The Schedule Timer; Description Of The Operation Modes - Rotex RKHBH008AA Manuel D'utilisation

26. DOMESTIC WATER HEATING BUTTON
This button enables or disables heating of the domestic water.
This button is not used when the domestic hot water tank is not
installed.
Remark that pushing the
NOTE
on the domestic water heating. Domestic water
heating is only switched on or off by means of the
button.
27. WEATHER DEPENDENT SET POINT BUTTON
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
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
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
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
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.
RKHBH/X008AA
Indoor unit for air to water heat pump system and options
4PW50204-1A
v
y button has no influence
v
ba
z
<
r p
/
and pj
bi and bj

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 pr button for 5 seconds.
The clock read-out and the day of week indicator start flashing.
2 Use the pi and pj buttons to adjust the clock.
Each time the pi or pj
increase/decrease by 1 minute. Keeping the
button pressed will increase/decrease the time by 10 minutes.
3 Use the bi or bj button to adjust the day of the week.
Each time the bi or bj
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 pr button.
If no button is pressed for 5 minutes the clock and day of the
week will return to their previous setting.
NOTE The clock needs to be set manually. Adjust the setting
when switching from summertime to wintertime and
vice versa.

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 (
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
d is 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.
button is pressed, the time will
pi or pj
button is pressed the next or
)
h
Operation manual
4