3
4
NOTE
■
NOTE
NOTE
■
■
■
■
■
NOTE
■
■
■
1
2
2
3
·
·
4
·
T
EST
RUN AND FINAL CHECK
The test run operation will end automatically after 30 minutes or
when reaching the set temperature. The test run operation can
The installer is obliged to verify correct operation of unit after
installation.
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.
Final check
To resolve the error codes, see "Error codes" on page 39.
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
unit cover.
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.
The service panel of the switch box may only be opened by a
licensed electrician for maintenance purposes.
It is not possible to perform a test run if a forced
operation from the unit is in progress. Should forced
Note that during the first running period of the unit,
required power input may be higher than stated on the
operation be started during a test run, the test run will
be aborted.
nameplate of the unit. This phenomenon originates
from the compressor that needs elapse of a 50 hours
run in period before reaching smooth operation and
M
AINTENANCE
AND SERVICE
stable power consumption.
In order to ensure optimal availability of the unit, a number of checks
Automatic test run
and inspections on the unit and the field wiring have to be carried out
at regular intervals.
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
This maintenance has to be carried out by your local Daikin
technician.
cooling mode. The test run will take up to 3 minutes, during which no
specific indication is given on the user interface.
DANGER: ELECTRIC SHOCK
During the automatic test run, it is important to ensure that the water
temperature does not drop below 50°F (10°C), which might activate
the freeze-
up protection and thereby prevent the test run to finish.
Should the water temperature drop below 50°F (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
Before carrying out any maintenance or repair activity,
always switch off the circuit breaker on the supply
panel, remove the fuses (or switch off the circuit
breakers) or open protection devices of the unit.
Make sure that before starting any maintenance or
sufficiently.
repair activity, also the power supply to the outdoor
If the automatic test run has ended successfully, the system will
automatically resume normal operation.
unit is switched off.
Do not touch live parts for 10 minutes after the power
supply is turned off because of high voltage risk.
If there are misconnections or malfunctions, an error code will be
displayed on the user interface. To resolve the error codes, see "Error
codes" on page 39.
The heater of the compressor may operate even in
stop mode.
Please note that some sections of the electric
When the unit is put into pump down operation, the
component box are hot.
automatic test run flag will be cleared. The next time
Make sure you do not touch a conductive section.
the system is put into operation, the automatic test run
will be executed again.
Do not rinse the unit. This may cause electric shocks
or fire.
After finishing automatic test run or power ON/OFF, the
When service panels are removed, live parts can be
compressor will operate in the selected operation
easily touched by accident.
mode and continue for certain time (set point on the
Never leave the unit unattended during installation or
remote controller is overruled during this operation).
servicing when service panel is removed.
The described checks must be executed at least
once a year
by
Test run operation (manual)
qualified personnel.
If required, the installer can perform a manual test run operation at
Water pressure
any time to check correct operation of heating, cooling and domestic
Check if the water pressure is above 14.5 psi (1 bar). If
water heating.
necessary add water.
Procedure
1
Push the
z
button 4 times so the
t
icon will be displayed.
Water filter
Clean the water filter.
Depending on the 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
Water pressure relief valve
Check for correct operation of the pressure relief valve by
turning the red knob on the valve counter-clockwise:
seconds or by pressing the
z
button once):
■
If you do not hear a clacking sound, contact your local dealer.
To test the heating operation push the
h/c
button so the
h
■
In case the water keeps running out of the unit, close both
icon is displayed. To start the test run operation press the
the water inlet and outlet shut-
off valves first and then contact
y
button.
your local dealer.
To test the cooling operation push the
h/c
button so the
c
icon is displayed. To start the test run operation press the
Pressure relief valve hose
y
button.
Check that the pressure relief valve hose is positioned
To test the domestic water heating operation push the
v
appropriately to drain the water.
button. The test run operation will start without pressing the
y
button.
EDLQ036~054B EBLQ036~054BA6VJU1
Installation manual
Unit for air to water heat pump system
4PW56182-1
37
