Installation and operation manual
18
HXY48TAVJU
VRV System indoor unit
3P616151-1A – 2021.12
Once all checks are fulfilled, the unit must be closed, only then can
the unit be powered on. When the power supply to the indoor unit is
turned on, "
88
" is displayed on the user interface during its
initialization, which might take up to 30 seconds. During this process
the user interface can not be operated.
8.2.
Final air purging
To get rid of all the air in the system, the pump should be operated.
Therefore, change the field setting [E-04] as explained in the chapter
"8.3. Field settings" on page 18. More details about setting "[E-04]
Pump only operation (air purge function)" can be found on page 21.
8.3.
Field settings
The hydro unit should be configured by the installer to match the
installation environment (outdoor climate, installed options, etc.) and
user demand. Therefore, a number of so called field settings are
available. These field settings are accessible and programmable
through the user interface on the indoor unit.
Each field setting is assigned a 3-digit number or code, for example
[5-03], which is indicated on the user interface display. The first digit
[5] indicates the 'first code' or field setting group. The second and
third digit [03] together indicate the 'second code'.
A list of all field settings and default values is given in the "8.4. Field
setting list for Installation Manual" on page 22. In this list we provided
2 columns to register the date and value of altered field settings at
variance with the default value.
8.3.1.
Procedure
To change one or more field settings, proceed as follows.
1
Press the
z
button for a minimum of 5 seconds to enter FIELD
SET MODE.
The
$
icon (3) will be displayed. The current selected
field setting code is indicated
;
(2), with the set value
displayed to the right
-
(1).
2
Press the
ébi
button to select the appropriate field setting
first code.
3
Press the
ébj
button to select the appropriate field setting
second code.
4
Press the
pfi
button and
pfj
button to change
the set value of the select field setting.
5
Save the new value by pressing the
pr
button.
6
Repeat step 2 through 4 to change other field settings as
required.
7
When finished, press the
z
button to exit FIELD SET MODE.
8.3.2.
Detailed description
For a summary of all field settings refer to "8.4. Field setting list for
Installation Manual" on page 22.
[0] Remote control setup
[0-00]
User permission level
The user interface can be programmed to make certain buttons
and functions unavailable for the user. There are 2 permission
levels defined. Both levels (level 2 and level 3) are basically the
same, the only difference is that for level 3 no water temperature
settings are possible (see table below).
NOTE
Operating the system with closed valves will damage the
pump!
INFORMATION
Changes made to a specific field setting are only
stored when the
pr
button is pressed. Navigating to
a new field setting code or pressing the
z
button will
discard the change made.
The field settings are grouped by their field setting first
code.
For example, field settings [0-00]; [0-01]; [0-02]; [0-03]
are defined as "Group 0".
When different values are changed within the same
group, pressing the
pr
button will save all the values
changed within this group.
Be aware of this when changing field settings within
the same group and pressing on the
pr
button.
INFORMATION
Before shipping, the set values have been set as
shown under "8.4. Field setting list for Installation
Manual" on page 22.
When exiting FIELD SET MODE, "
88
" may be
displayed on the user interface LCD while the unit
initializes itself.
NOTE
When running through the field settings you may notice
that there are some more field settings as there are
mentioned in the "8.4. Field setting list for Installation
Manual" on page 22.
These field settings are not appli-
cable and may not be changed!
Permission
level 2
level 3
Operation ON/OFF
Operable
Operable
Setting the leaving water temperature
Operable
—
Setting the room temperature
Operable
Operable
Weather dependent set point operation
ON/OFF
Operable
—
Setting the clock
—
—
Programming the schedule timer
—
—
Schedule timer operation ON/OFF
Operable
Operable
Field settings
—
—
malfunction code display
Operable
Operable
Test operation
—
—
01_EN_3P616151-1A.fm 18 ページ ２０２１年１２月１４日 火曜日 午後１時２９分