14 About the app
Installer and user reference guide
43
BS7
Wired remote controller
4P513690-1C – 2019.05
Field settings type
Procedure
Individual indoor units
▪ Set the field setting type to
"Indoor unit".
▪ Define a mode. In the field
settings table, find this number
between brackets in the Mode
column.
▪ Define the unit to which the
setting will apply by setting a
unit number.
▪ Define the setting by tapping
the right tile in the app. In the
field
settings
table,
find
settings in the SW column.
▪ Define a value for that setting.
Groups of indoor units
▪ Set the field setting type to
"Indoor unit".
▪ Define a mode. In the field
settings table, find this number
NOT between brackets in the
Mode column.
▪ Do NOT set a unit number (the
settings will apply to all units in
the group).
▪ Define the setting by tapping
the right tile in the app. In the
field
settings
table,
find
settings in the SW column.
▪ Define a value for that setting.
Remote controller
▪ Set the field setting type to
"Remote controller".
▪ Define a mode.
▪ Define the setting by tapping
the right tile in the app. In the
field
settings
table,
find
settings in the SW column.
▪ Define a value for that setting.
Default values
Field setting default values are different depending on the indoor unit
model. For more information, see the service manual of the indoor
units. For the following field settings, the default values are the same
for all indoor unit models:
Field setting
Default value
Thermostat sensor
02
Setback
04
Window contact B1
02
Key card contact B2
02
Airflow direction range
02
Remote controller thermostat
sensor
02
Rotation overlap time
03
INFORMATION
▪ The connection of optional accessories to the indoor
unit might cause changes to some field settings. For
more information, see the installation manual of the
optional accessory.
▪ For details about the specific field settings of each type
of indoor unit, see the installation manual of the indoor
units.
▪ Outdoor unit field settings can only be configured via
the outdoor unit PCB. For more information, see the
installation manual of the outdoor unit.
▪ Field settings that are not available for a connected
indoor unit are not displayed.
14.5.37 Duty rotation
Activate Duty rotation to let the indoor units operate alternately (one
indoor unit alternately inactive), this to increase system lifespan and
reliability.
Duty rotation is designed for units operating in critical applications
(e.g. in server rooms that require lots of cooling). In these cases, the
system is equipped with an extra backup unit. Activating Duty
rotation then allows for:
▪
Rotation
: because the system is equipped with more units than
are required to provide the heating/cooling load, one of the units
can remain inactive during normal operation. After a set time (i.e.
"Rotation cycle time"), the inactive unit will start operation, and a
previously active unit will become inactive (i.e. duty rotation).
Because the units only operate alternately, the lifespan of the
system increases.
▪
Backup
: having a backup unit allows for system redundancy. If an
active unit goes into error, Duty rotation makes sure an inactive
one takes over.
A
A
A
B
A
Inactive backup unit
B
Unit in error
INFORMATION
This function can only be used when the indoor units are in
group control.
INFORMATION
▪ To let the backup unit reach its cooling/heating
capacity, an overlap period is included in which all
indoor units are active. For more information, see
"Indoor unit field settings" on page 25
1E-7).
▪ The rotation order depends on the set unit number. For
instructions on how to change the indoor units' unit
number, see
