14 Configuration
Installer and user reference guide
26
BK+S
Wired remote controller
4P513690-1 – 2018.03
Force fan ON
About Force fan ON
Force fan ON allows you to force fan operation of individual indoor
units. In this way, you can check which indoor unit number was
assigned to which indoor unit.
To force fan operation
Prerequisite:
You are in the installer menu.
1
Navigate to the Force Fan ON menu.
2
Select an indoor unit number.
3
Select
and press
to force fan operation.
Result:
The fan of the indoor unit that corresponds to the selected
indoor unit number starts operating.
Switch Cooling/Heating master
About Cooling/Heating masterhood
A
a
b
c
c
c
c
b
b
b
B
a
b
c
c
c
c
b
d
b
b
A
Heat pump system
B
Heat recovery system
a
Outdoor unit
b
Indoor unit
c
Remote controller
d
BS unit
When multiple indoor units are connected to the same outdoor unit,
there are restrictions as to the operation modes in which they can
run. One outdoor unit does not allow for one indoor unit to perform
Cooling operation, while another performs Heating operation.
Therefore, the system requires that one indoor unit is set as cooling/
heating master. This indoor unit then decides the operation modes in
which the other (slave) indoor units can run. When one indoor unit is
set as cooling/heating master, the other indoor units automatically
become its slaves. For instructions, see
Cooling/Heating masterhood corresponds to the following status
icon:
The behaviour of this status icon is according to the following table:
If a controller displays …
Then …
… NO status icon
… The indoor unit connected to
that controller is Cooling/Heating
master.
… a CONSTANT status icon
… The indoor unit connected to
that controller is slave to a
Cooling/Heating master.
… BLINKING status icon
… NO indoor unit is assigned as
Cooling/Heating master yet.
The operation mode behaviour of the indoor units is according to the
following table:
If the master …
Then the slaves …
… is set to "Heating", "Dry", or
"Auto" operation mode
… start running in the same
operation mode as the master.
No other modes are then
available for them.
… is set to "Cooling" operation
mode
... then the slaves cannot run in
"Heating" operation mode, but
can still run in "Cooling", "Fan
only" and "Dry" operation mode.
… is set to "Fan only" mode
… can ONLY run in "Fan only"
mode.
Once an indoor unit is set as master, it can be released from
masterhood. For instructions, see
To set Cooling/Heating masterhood
Prerequisite:
No indoor unit is yet set as Cooling/Heating master
("changeover under centralised control" icon blinking on all
controllers).
Prerequisite:
You are operating the controller of the indoor unit that
you want to set as Cooling/Heating master.
1
Navigate to the operation mode menu.
2
Set the operation mode to either Cooling or Heating.
Result:
The indoor unit is now Cooling/Heating master ("changeover
under centralised control" icon not on controller).
