Installation and operation manual
18
125A7V1B
VRV IV System indoor unit
4P325971-1B – 2012.07
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).
By default no level is defined so all buttons and functions are
operable.
The actual permission level is determined by field setting. For
permission level 2, set field setting [0-00] to 2, for permission
level 3, set field setting [0-00] to 3.
Once the field setting is set, the chosen permission level is not
yet active. Enabling the selected permission level is done by
simultaneously pressing buttons
pi
and
pj
immediately
followed by simultaneously pressing buttons
s
and
ba
, and
keeping all 4 buttons pressed for at least 5 seconds. Note that
no indication on the user interface is given. After the procedure
the blocked buttons will not be available anymore.
Deactivating the selected permission level is done in the same
way.
[0-01]
Room temperature compensation value
If needed, it is possible to adjust some thermistor value of the
unit by a correction value. This can be used as countermeasure
for thermistor tolerances or capacity shortage.
The compensated temperature (= measured temperature plus
compensation value) is then used for controlling the system and
will be displayed in the temperature read-out mode. See also
"[9] Automatic temperature compensation" on page 21
for
compensation values for leaving water temperature.
[0-02]
Setting not applicable
[0-03]
Status: defines whether the ON/OFF instruction can be
used in the schedule timer for space heating.
Refer to the operation manual for details how to program the
schedule timer.
The schedule timer for space heating can be programmed in
2 different ways: based on the temperature set point (both
leaving water temperature and room temperature) and based on
the ON/OFF instruction.
In the following tables both methods on how to interpret the schedule
timer are shown.
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.
NOTICE
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
—
—
INFORMATION
By default space heating based on temperature set point
(method 1) is enabled, so only temperature shifts are
possible (no ON/OFF instruction).
Method 1
Space heating based on temperature set point
(a)
(a) For leaving water temperature and/or room temperature
During operation
During schedule timer operation the operation LED is lit
continuously.
When pushing
the
y
button
The schedule timer for space heating will stop and will
not start again.
The controller will be switched off (operation LED will
stop working).
When pushing
the
pr
button
The schedule timer for space heating will be stopped and
will not start again.
The schedule timer icon will not be displayed anymore.
