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125A8V1BF
VRV IV System indoor unit
4P405267-1C – 2021.04
Installation and operation manual
37
11.3.11. Operating the optional demand PCB
An optional PCB EKRP1AHTA can be connected to the unit and be
used to remotely control the unit
There are 3 inputs that allow
Remote thermo on - off.
Remote unit on - off.
For more details about this option kit, refer to the wiring diagram of
the unit
11.3.12. Operating the optional user interface
If besides the main user interface the optional user interface is
installed as well, the main user interface (master) can access all
settings while the second user interface (slave) can not access
schedule settings and parameter settings.
Refer to the installation manual for more details.
11.4. Field settings
The unit shall be configured by the installer to match the installation
environment (outdoor climate, installed options, etc.) and user
demand. However, the field settings mentioned in
can be modified to customer preferences. Therefore, a
number of so called field settings are available. These field settings
are accessible and programmable through the user interface.
Each field setting is assigned a 3-digit number or code, for example
[1
-
03], which is indicated on the user interface display. The first digit
[1] 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 under
. In this same list, we provided 2 columns to
register the date and value of altered field settings at variance with
the default value.
11.4.1. Procedure
To change one or more field settings, proceed as follows.
1
Press the 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
button to select the appropriate field setting
first code.
3
Press the
button to select the appropriate field setting
second code.
4
Press the
button and
button to change
the set value of the select field setting.
5
Save the new value by pressing the
button.
6
Repeat step 2 through 4 to change other field settings as
required.
7
When finished, press the button to exit FIELD SET MODE.
NOTICE
The default values mentioned in
are the values from factory. The actual initial
values shall be selected according to your application.
These values shall be confirmed by your installer.
NOTICE
Changes made to a specific field setting are only stored
when the
button is pressed. Navigating to a new field
setting code or pressing the button will discard the
change made.
INFORMATION
Before shipping, the set values have been set as
"8.3. Field settings" on page 17
.
When exiting FIELD SET MODE, "
88
" may be
displayed on the user interface LCD while the unit
initialises itself.
NOTICE
When running through the field settings you may
notice that there are some more field settings as there
are mentioned in the
"8.3. Field settings" on page 17
These field settings are not applicable and may
not be changed!
For more information about installation related setting,
see installation manual of the unit. For settings
different from the default value, contact your installer.
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