EKHBH/ EKSWW150-300V3/Z2
Indoor unit for air to water heat pump and sanitary warm water tank for air to water heat pump system
4PW36978-1C
Installation manual
24
T
EST
RUN
AND
FINAL
CHECK
The installer is obliged to verify correct operation of the indoor and
outdoor unit after installation.
Automatic test run
When the unit is put into operation (by pressing the
y
button) for
the first time, the system will automatically perform a test run in
cooling mode. The test run will take up to 3 minutes, during which no
specific indication is given on the user interface.
During the automatic test run, it is important to ensure that the water
temperature does not drop below 10°C, which might activate the
freeze-up protection and thereby prevent the test run to finish.
Should the water temperature drop below 10°C, press the
h
/
c
button so the
h
icon is displayed. This will activate the backup heater
during the automatic test run and raise the water temperature
sufficiently.
If the automatic test run has ended successfully, the system will
automatically resume normal operation.
If there are misconnections or malfunctions, an error code will be
displayed on the user interface. To resolve the error codes, see
Test run operation (manual)
If required, the installer can perform a manual test run operation at
any time to check correct operation of cooling, heating and sanitary
water heating.
Procedure
1
Push the
z
button 4 times so the
t
icon will be displayed.
2
Depending on the indoor unit model, heating operation, cooling
operation or both must be tested as follows (when no action is
performed, the user interface will return to normal mode after 10
seconds or by pressing the
z
button once):
•
To test the heating operation push the
h
/
c
button so the
h
icon
is displayed. To start the test run operation press the
y
button.
•
To test the cooling operation push the
h
/
c
button so the
c
icon
is displayed. To start the test run operation press the
y
button.
•
To test the sanitary operation push the
v
button. The test run
operation will start without pressing the
y
button.
3
The test run operation will end automatically after 30 minutes or
when reaching the set temperature. The test run operation can
be stopped manually by pressing the
z
button once. If there are
misconnections or malfunctions, an error code will be displayed
on the user interface. Otherwise, the user interface will return to
normal operation.
4
To resolve the error codes, see
Final check
Before switching on the unit, read following recommendations:
■
When the complete installation and all necessary settings have
been carried out, close all front panels of the unit and refit the
indoor unit cover.
■
The service panel of the switch box may only be opened by a
licensed electrician for maintenance purposes.
NOTE
When the outdoor unit is put into pump down operation
(see the outdoor unit installation manual), the
automatic test run flag will be cleared. The next time
the system is put into operation, the automatic test run
will be executed again.
NOTE
To display the last resolved error code, push the
z
button 1 time. Push the
z
button again 4 times to
return to normal mode.
NOTE
It is not possible to test run if a forced operation from
the outdoor unit is in progress. Should forced operation
be started during a test run, the test run will be
aborted.