Daikin HXHD125A7V1B, Installation Manual

Page: 42 / 52

Installation manual
40
HXHD125A7V1B
VRVIII system indoor unit
4PW62584-1A – 11.2010
10. F
INAL CHECK AND TEST RUN
10.1. Final check
Before switching on the unit, read the following:
■
When the complete installation and all necessary settings have
been carried out, be sure that all panels of the unit are closed. If
this is not the case, inserting your hand through the remaining
openings can cause serious injury due to electrical and hot parts
inside the unit.
■
The service panel of the switch box may only be opened by a
licensed electrician for maintenance purposes.
In order to purge most of the air out of the system perform a pump
operation as described below:
1 Change field setting [E-04]
The default value is 0.
■
When changing the setting to 1, the pump will operate at low
speed (pump only, the unit will not operate).
■
When changing the field setting to 2, the pump will operate at
high speed.
2 When air purging is finished, change the field setting back to 0.
It is the responsibility of the installer to make sure that the air is
purged out of the unit and system.
■
Be sure that all stop valves are open. (Refer to vacuuming
procedure of the outdoor unit)
■
Be sure that all water valves are open.
Multi tenant power supply check
Cut off the power supply to the indoor unit. If the multi tenant power
supply is installed, the remote controller will keep operating. Confirm
that the remote controller still operates for more than 15 seconds
after the power supply was cutt off.
10.2. System test run
Before you can check test operation of each indoor unit separately,
you have to do the system test run. System test run is explained in
the installation manual of the outdoor unit. This is an automatic test
run which can take up to more than 1 hour.
When the system test run is finished, it is possible to do an individual
test run as described in
"10.3. Indoor unit individual test run" on
page 40 . During this test run, the installer should check indicated
items.
10.3. Indoor unit individual test run
The installer is obliged to verify correct operation of the indoor and
outdoor unit after installation. Therefor a test run must be performed
according to the procedures described below. At any time it is
possible to check correct operation of space heating and domestic
water heating.
Temperature read-out mode
On the remote controller, the actual temperatures can be displayed.
1 Push and hold the
ba
button for 5 seconds.
The leaving water temperature is displayed (icons
l
and
=
and
é
are blinking).
2 Use the
pi
and
pj
buttons to display:
■
The entering water temperature (icons
l
and
=
are
blinking and the
é
icon is flashing slowly).
■
The indoor temperature (icons
l
and
=
are blinking).
■
The outdoor temperature (icons
l
and
u
are blinking).
■
The hot water supply tank temperature (icons
l
and
w
are
blinking).
3 Push the
ba
button again to leave this mode. If no button is
pressed, the remote controller leaves the display mode after 10
seconds.
Procedure for space heating
1 Check the leaving water and entering water temperature through
the remote controller read-out mode and write down the
displayed values. See
"Temperature read-out mode" on
page 40 .
2 Push the z button 4 times so the t icon will be displayed.
3 Perform the test 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 space heating operation push the
y
button to start
the test run operation.
4 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.
5 To resolve the error codes, see "12.5. Error codes" on page 45 .
NOTICE
When using thermostatic radiator valves, make sure to
open all valves during air purging operation.
INFORMATION
When the indoor units and outdoor unit are powered on for
the first time, an initialisation takes place. This will take
maximum 12 minutes.
When using the remote controller during the initialisation,
an error code (
UH
) can be displayed.
INFORMATION
■
During the first start up of the unit (the first 48 hours of
compressor running), it might happen that the noise
level of the unit is higher than mentioned in the
technical specifications. This is not an abnormal
event.
■
Start up of the unit in space heating mode is only
possible when the outdoor ambient temperature is
lower than 20°C. Refer to
"[9-02] Thermo ON/OFF
admission" on page 30 how to increase this
temperature limit.