Control KSUA User manual

17/11/2017
___________________________________________________________________
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KSUA
Control panel
Valid from week of manufacture 50/2011 and
software version 2.8
Description
The KSUA is a control and monitoring unit
designed to control various types of fire/smoke
dampers and fans in a flexible way. This unit
is a master unit. Up to 32 slave units can be
connected to the KSUA. Each slave can
operate two damper groups, each with a
maximum of two dampers and two smoke
detector groups. These units can be grouped in
any way in up to 64 fire zones. Each damper
group and detector group can be monitored
individually. A central fire alarm system can
be connected using the KSUC, which has a
maximum capacity of 16+16 fire zones. The
KSUA can also be used to connect ventilation
systems, smoke evacuation fans and heater
batteries. These units are then controlled in an
intelligent way depending on their function.
The KSUA has additional inputs for an
external fire alarm, forced opening, night
mode, etc. The KSUA also has a standardised
input for connecting a Modbus network
monitoring all dampers, smoke detectors and
other devices.
General
•Master for KSUB and other slave units
•32 slave units. Less with KSUE and KSUF.
•64 damper groups
•64 detector groups
•Separate KSUC unit for connecting a fire
alarm system
•Separate alarm inputs for isolating switches
in smoke extraction fans (for example)
•2 fan groups
•6 distributed relay outputs
•Real time clock with battery backup
•External input for central fire alarm system
•Night mode input
•Forced opening input
•Evacuation dampers (pressure relief) can be
configured in any way in the system
•Damper position indication
•Error logging
•Integrated troubleshooting program
•8 Time Channels
•Compact plastic case
•Integrated transformer
•Programming using modern techniques
(knob with pushbutton)
•Easy to back up the configuration
•Serial Modbus RTU is standard, TCP/IP
Modbus is option.
•And more
Maximum configuration
The system can handle a total of 64 damper
groups with a maximum of 128 dampers and
64 detector inputs. In principle, an unlimited
number of smoke detectors can be connected.
These smoke detector inputs and fire dampers
can then be grouped into a maximum of 64 fire
zones. 16+16 fire zones come from the KSUC.
There are up to two outputs for fan control.
Using the KSUC, a further 6 outputs are
available. These outputs can be configured for
ventilation fans, smoke extraction fans,
various alarms or heater batteries. Custom
delays, etc. can be selected for each of the
options.

Page. 2
Installation
Designed for wall or rack installation. A
simple assembly kit is required for rack
installation.
Supply voltage
230 VAC 50 Hz 5VA. Protected with 2A at
least.
Protection class
IP65. For outdoor installation, a polycarbonate
case is available for an extra charge.
Ambient temperature
Max +30°C, min 0°C.
Weight
1.5 kg
Accessories
•Assembly kit for rack installation
Outputs
•Sum alarm. Voltage-free changeover
contact 1A max 60VA. Terminal numbers
16,17,18.
•Triggered smoke detector, shared by all
smoke detectors. Voltage-free changeover
contact 1A max 60VA. Terminal numbers
13,14,15.
•FAN 1. Voltage-free changeover contact
max 10A / 250V. Terminal numbers
19,20,21. Intended to lock the ventilation
system.
•FAN 2. Voltage-free changeover contact
max 10A / 250V. Terminal numbers
22,23,24. Various applications. Vent.
systems, heater batteries or smoke
extraction fans can be programmed with
different time delays.
Inputs
•Modbus slave. (RS485) Available as a
screw terminal or standardised RJ45
contact
•Bus for KSUB and KSUC slave units
(RS485)
•Forced opening
•Night mode
•Alarm (external control unit). Opening the
circuit has the same effect as a triggered
smoke detector (the system switches to
critical mode)
Dimensions
230V AC 50Hz 5VA
Knock-out holes: 5*M20, 1*M16
69 118
188.5
213
KSUA CONTROL PANEL
Fire Dampers
BACK
COMMUNICATION
Modbus Activity
IS-Bus Activity
Instrumentservice
Gånghester, Sweden. Tel. [phone]
Serial Number:
SELECT/ENTER
How does the network work?
Both network connections are based on the
RS485 standard, which is well-established in
the market. For communication to take place,
there is always one master and one or more
slaves. Each of the slaves must have a unique
address. In the case of Modbus, a special

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Modbus menu is used to configure the address
(the KSUA is always a slave). In the case of
SBus, the KSUA is the master and the KSUB
and KSUC units are slaves. The address is
configured in a jumper panel in the KSUB.
The maximum length of the cable between
master and slave is 1200 metres. According to
the standard, the cable has three wires, one of
which is the "internal ground" of the system. It
is usually OK to leave out this ground, and
most installers even think that systems may
work better without the ground wire. Note that
the ground wire CANNOT be connected to
anything other than a KSUA-KSUB. Because
the system is symmetrical, twisted pair cable
should be used to minimise the risk of
transients. In this type of cable, the diameter of
the wires is usually 0.5 mm. If shielded cable
is used, the shield can be used as the ”ground
wire” if it is not connected to any other
ground. An example of a widely used cable is
FKAR-PG 2*0.5.
It is advisable to run the cable from one unit to
another, but it is also possible to install a
backbone cable with drop cables. Make sure
that the drop cables are no longer than 20
metres.
The common ground connection (Gnd) is not shown.
An RS485 network must be connected
correctly. There must be a termination at each
end of the network. For example the master
unit is usually placed at one end and one of the
slaves at the other. Both units must then be
terminated with the built-in resistors, i.e.
jumper I in the KSUB and jumper PL2 or PL3
in the KSUA. PL3 is used for the Modbus
connection and PL2 for SBus.
Priority handling
The system can handle so-called critical and
non-critical detector groups. A non-critical
group will not affect the fans, etc. if a detector
is triggered. All that happens is that the
dampers assigned to the group are closed and
an alarm is sent to the KSUA output for
triggered smoke detector. For evacuation
dampers, it is possible to start smoke
extraction fans without switching to critical
mode. If a critical group triggers an alarm, the
ventilation system is stopped, all dampers are
moved to alarm position and any smoke
extraction fans are started. The alarm is of
course sent from the KSUA output for
triggered detector. Forced opening has the
highest priority. Regardless of the alarm
position, the dampers will be forced to the
open position. If there is a communication
error between KSUA-KSUB, the system goes
into critical mode except that any smoke
extraction fans is not started (you can use a
KSUC unit if you want to start the smoke
extraction fan in the presence of a
communication error). The alarm output for
triggered detector will of course also be

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unaffected. Dampers in the KSUB that lose
communication with the KSUA will move to
alarm position.
Authorisation
An authorisation code is required in order to
configure the system. The factory settings for
the code are AAAA. You should change the
code for improved security.
You do not need to enter the authorisation
code to read logs and error messages.
Connection terminals
Connections
Connections
230V 50Hz.
Must be connected via fixed cables to a group
fuse of at least 2A. The isolating switch must
be positioned close to the unit. The KSUA is
built with reinforced insulation, so no ground
is necessary.
SBus (ISbus)
Connect one slave at a time, each with a
unique address, so that not too many errors
occur at the same time. Make sure the network
is correctly connected as described above.
Configuration / Installation
Install and test every single KSUB in stand-
alone mode. This guarantees correct
connection of dampers and detectors. Start the
configuration process by defining the dampers
in the respective KSUB. When all dampers are
included in the table, start on the smoke
detectors.
Detector
G
roups
1-64
Dampers
1-64
Fan relays
Smoke
Detectors
1-96e

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The detector groups appear first in the menu.
A detector group is a collection of smoke
detectors that form a fire zone. One or more
smoke detectors can be connection to a
detector group. The smoke detectors in a group
are indicated with a star to the right of the
menu. A smoke detector can be assigned to
more than one detector group if required.
When you close the menu, a message tells you
the number of smoke detectors in this group.
The external input of the KSUB is always
connected to detector 1 for each KSUB. This
means that external fire alarm systems
connected to a KSUB can also be included in a
particular detector group. The fire alarm input
of the KSUA always takes precedence and can
be thought of as belonging to all detector
groups.
The fan control is configured next. FAN 1 is
the same as Relay 1 in the description. Relay 1
is intended for the air handling system. Relay
2 can be used for another ventilation system,
heater batteries or smoke extraction fans. An
important part of the configuration process is
defining what is to happen when a smoke
detector group is triggered. If a detector group
is considered to be critical, the entire system
must switch to fire mode, which means that
the ventilation system is stopped, all
ventilation dampers are closed, the evacuation
dampers are opened and a smoke extraction
fan is started. In a non-critical group, only the
dampers within the group are affected if a
smoke detector is triggered. Detector groups
are defined as critical in Stop/DetGrps in the
menu.
The fan output of the KSUB can be used if
there are a number of small ventilation
systems in the installation, and you want them
to be controlled by the relevant detector group.
The output is hard coded so that detector
group 1 is connected to KSUB address 0.
Detector group 2 is connected to KSUB
address 1, etc. up to detector group 12.
The KSUB fan relay output is dependent on
the Relay 1 configuration in the KSUA. If you
want the fans connected via the KSUB to stay
on during the damper exercises until the
relevant damper closes, set Stop/Test to OFF
in the Relay 1 menu. Other functions are also
dependent on the settings in the Relay 1 menu.
There are eight time channels that can be
controlled by Modbus. Each damper can be
assigned to one of these channels. By a
command from the modbus can then all
dampers belonging to the channel opened or
closed. Functional check or fire overrides the
control from modbus and dampers go to the
position function control or fire requires. Only
ventilation dampers can be assigned to a time
channel. No fan functions are affected by time
channels. After a power failure in KSUA, all
schedules go to off mode. I.e. If daytime
operation and alarm-free situation is valid the
dampers will open.
Inputs
Modbus / RJ45
The contact is standard for Modbus RTU and
contains outputs for +5V on pin 7 and 0V on
pin 8. A is on pin 5 and B is on pin 4. +5V can
be loaded with up to 100 mA resistive load.
The contact for Modbus over TCP/IP is on the
left side of the box. (TCP/IP is an optional
extra)
MBUS, SBUS
These are connections for Modbus and SBus
respectively. The SBus connection goes to the
slave units.
Forced opening
If the input is closed, the dampers will move to
the open position. All other functions are
disabled. It is possible to define whether the
fans will be on or off.
Alarm
This input is used to connect to a central fire
alarm system. If 9-10 is open the entire system
switches to critical mode. Ventilation systems,
etc. are stopped immediately, the dampers are
switched off and any smoke extraction fans are
started. Normally manual resets are necessary.
In menu 19 it could be changed to automatic
reset.
Night mode
The night mode input is activated when 11-12
is open. What happens next is that any heater
battery and the ventilation system are stopped

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with the delays defined during configuration.
The open dampers are closed. If there are
evacuation dampers (pressure relief dampers),
they are not affected.
Outputs
Relay outputs
All relays are shown in the open position.
FAN 1 is normally activated. The state of FAN
2 depends on the configuration.
Triggered detector
If a smoke detector in the system is triggered,
13-15 is closed. The output can be seen as a
so-called A-alarm.
Sum alarm
The sum alarm is activated for any kind of
error (16-18 closed). The error is also logged.
The output can be seen as a so-called B-alarm.
FAN 1
Used to control the air handling system. 19-21
is normally closed. The delay can be adjusted
between 0-300 seconds to allow large systems
to shut down before the duct system is
stopped.
FAN 2
There are four different ways to use this
output.
•Ext. Fire. Fan 2 output activated when
input 9-10 is off.
•To control heater batteries with an
adjustable cooling period between 0
and 990 seconds.
•To control a second ventilation
system. In this case, the output
follows FAN 1.
•To control a smoke extraction fan.
The fan can be set to start either after
all the evacuation dampers have
opened or after 20 seconds. For the
function test, the running time can be
set between 10 and 900 seconds
Fuses
There is a 50mAT fuse on the motherboard.
To access the fuse, remove the four screws in
the corners of the front panel. There is a fuse
holder on the bottom right-hand side. The
holder is the bayonet type. To remove the fuse,
press the holder down and twist anticlockwise.
Front panel layout
230V AC 50Hz 5VA
KSUA CONTROL PANEL
Fire Dampers
BACK
COMMUNICATION
Modbus Activity
IS-Bus Activity
Instrumentservice
Gånghester, Sweden. Tel. [phone]
Serial Number:
SELECT/ENTER
Indicators and buttons A
The display is dimly lit during normal
operation. When you start using the menu the
A
B
C
E
D

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light level increases to make the display easier
to read.
Special symbols used in the display:
Description

Select by turning the knob.

Move to next menu by pushing the knob
Direct selection by pushing the knob.
Some of the menus are described below. Many
items are self-explanatory so no special
description is needed.
Other
Starting from menu 10, you need to log in.
This covers all the settings that must not be
changed by unauthorised personnel.
B
Encoder for selecting options. Push the knob
to select or activate an option.
C
Back button. Usually moves one step back in
the menus.
D
Flashes when a Modbus message is received
E
Flashes when a SBus message is received
Friday |KSUA V2.8
12-01-03 |Status:OK
08:42:29 |Day mode
Winter |
Operation Status View.
Menu system
31. Ext. Fire
10. Real Time Clock
11. Day/Night Schedule
12. Damper Test Schedule
13. Damper Table
4. Damper Status
5. Detector Status
6. Relays & Inputs
14.Configuration For Damper
16. Detector Group Members
Relay 1
Relay 2
33. Select Detector Groups
Operation Status View.
32. Select: Ventilation Fan
34. Evacuation Fan
35. Heater
26. Dmpr TimeChannels
15. Detector Groups
7. KSUC1 Status
41. KSUC1 Relay 1
17. Fan relays
42. KSUC1 Relay 2
43. KSUC2 Relay 1
44. KSUC2 Relay 2
45. KSUC3 Relay 1
46. KSUC3 Relay 2
8. KSUC2 Status
9. KSUC3 Status
47. KSUC3 Alarm Inputs
18. KSUC Settings
19. Reset Man/Auto
20. ModBus I/O
21. Print Settings
22. Change Password
23. Set Defaults
24. Timeout handling
Menu system. (Number ref to description below.)

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Press any of the buttons to show the main menu from standby mode. A short summary of the system
status appears in standby mode. Errors or anything else of interest appear in summary.
MAIN MENU
►Log
1 Alarm Reset
Full System Reset
▼ Start Damper test
Select this item to open the log. The log
contains the last 99 events. It contains
information with timestamps for all errors.
Two different resets are possible. The alarm
reset is a softer reset, and only applies to the
affected dampers in the system. All critical
alarms must be acknowledged by clicking on
Full System Reset.
DAMPER 1 (SLV 0)
Motor: ON
Position: Fully ON
Time Channel: 6=OFF
4.
You can read the position of the dampers in
real time. There are three different positions.
On, off and intermediate. You can also see
whether the damper motor is powered from the
KSUB.It also shows whether the damper is
controlled by a time channel and if it is on or
off.
DETECT. 5 (SLV 2)
Fail: NO| Loop
Serv.: NO| curr:
Smoke: NO| I=10mA
5.
The status of the detectors is shown in real
time. Loop current is passing through the
detector. The standby current is approx. 10
mA. The current increases when the detectors
are dirty, and at 20 mA a service alarm is
triggered. This indicates that the detector
needs cleaning. A fire alarm is triggered if the
current increases to 40 mA. An alarm can be
traced more accurately by reading the current.
Relay1=1 ForceOp=NO
Relay2=1 ExtFire=NO
Fail =0 ExtNite=NO
Fire =0 SlvDay =NO
6.
All outputs and inputs in the KSUA can be
viewed in real time. SlvDay is a day mode
request from a slave.
KSUC1 STATUS 65e-80e
6666677777777778
5678901234567890
Not Installed!
7 and 8.
The active inputs in the KSUC are displayed
here. Inactive inputs appear as –, and if there is
no unit, "Not Installed" appears. Menu 8
contains the corresponding function for alarm
inputs 81e-96e.
KSUC3 STATUS 1-16
1111111
1234567890123456
----------------
9.
The active inputs in a KSUC3 (a KSUC with
jumper 8 on) appear as described for menus 7
and 8.
NIGHT INTERVAL ►1(7):
Begins: Fri 20.00
Ends : Mon 06.00
In use: YES
11.
There are up to seven different schemes that
can be used for the night interval. Night mode
can also be controlled from external units via
input 11-12 or via Modbus. In this case, close
this menu with all intervals deactivated.
DMP TEST SCHEDULE:
Start: ►Mon 01:00
Interval: ►2 days
Simultaneous test
12.
Damper exercises are defined in a separate
menu, where the start time is specified. You
then specify how often the exercise will be
carried out. If more than 6 days are selected
the menu change to weeks. The National
Housing Board in Sweden recommends every
two days. Finally, you can specify whether the
exercise covers all dampers simultaneously or

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in sequence. If they are exercised in sequence,
each damper is closed and opened fully before
the next damper is exercised. If Modbus is
used for the exercise, the interval should be set
to OFF.
DAMPER| DMP ITF Dgr
TABLE |▲ 4 YVN 1
Select|| ►5 YVN 1
damper|▼ 6 YVN 2
13.
All dampers appear in a table with their
configuration. Damper numbers 1 and 2 are in
slave unit 0. Damper numbers 3 and 4 are in
slave unit 1. Damper numbers 5 and 6 are in
slave unit 2, etc.
•DMP stands for damper number.
•I indicate whether the damper is
installed.
•T is the type – either ventilation
damper or evacuation damper.
Ventilation dampers are normally
open while evacuation dampers are
closed.
•F stands for function. For ventilation
dampers, the options are either Always
open or Night. Select Always open if
you only want the damper to be
affected by an alarm state. Select
Night if you want the damper to be
affected by night mode. For
evacuation dampers, the options are
Critical or Detector group no. Critical
means that the damper is operated
when a fire occurs in a critical detector
group. See menu 31.
•Dgr shows the detector group of the
damper. This can be between 1 and 64.
CONFIG.|Instal: Yes
FÖR | Type: VENT
DAMPER | Func: NITE
No 5: |DetGrp: 3
14.
This menu is used to actually program the
dampers. See the description for menu 13.
Edit time | ►1 (6)
channel for | 2 (3)
damper:| 3 (6)
▼ 4 (-)
26.
There are eight time channels. Each damper
can belong to a time channel or none at all. In
the example above is damper 1 and 3
connected to time channel 6. Damper 2
belongs to channel 3. Time channels can then
be controlled by Modbus
DETECTOR | ► 1 (6)
GROUPS | 2 (3)
(Det count) | 3 (6)
Select GRP: ▼ 4 (-)
15.
There are 64 detector groups. Each detector
group is a fire zone. There are one or more
detectors in a detector group. The number of
detectors in the group is shown in brackets.
DETECTOR | ► 1
GROUPS | 2
(Det count) | 3
Select GRP: ▼ 4
16.
This menu selects the detectors that are
included in a detector group. A detector can be
included in more than one group. The stars on
the right indicate that the detector is included
in the group.
SETTINGS
▲ Damper Table
6 Detector groups
▼ ►Fan Relays
17.
Select Fan Relays to configure the way the
ventilation system, smoke extraction fans,
heater batteries, etc. are controlled.
CONFIGURE RELAY 1:
| Func: ►VENT-FAN
| Stop/night: YES
▼ Stop/DMP test: YES
32.
Select Stop/night if you want the ventilation
system to stop in night mode. Similarly, you
can specify whether you want the ventilation
system to stop during the function test.
CONFIGURE RELAY 1:
▲ Stop/DMP fail: YES
| Start/ForceOp: NO
▼ Stop/DetGrps: ►List
32. (Continued from the Relay 1 menu.)
•Select Stop/DMP fail if you want the
ventilation system to stop if a damper
closes incorrectly.

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•Select Start/ForceOp if you want the
ventilation system to start during forced
opening.
•Stop/DetGrps has a submenu, see
below, which works by causing the
selected detector group or groups to
stop the ventilation system, meanwhile
placing the entire system into a critical
state. This means that all V dampers
are closed, evacuation dampers are
opened and smoke extraction fans are
started.
Select D-Grps | 1
To stop V-fan | 2
When smoke or | 3
det. Failure: ▼ 4
33.
Select the detector groups to be defined as
critical.
Relay 2 | EXT. FIRE
| VENT FAN
Select | ►EVAC FAN
Function:| HEATER
Relay output 2 can be configured for a specific
purpose. Ext. Fire is to be used if input 9-10
should control relay 2. If you select VENT
FAN, relay 2 completely follows relay 1.
CONFIGURE RELAY 2:
| Func:►EVAC FAN
| Await ED open: YES
▼ Start/ForceOp: YES
34.
EVAC FAN is displayed to explain the special
parameters used with this type of fan.
•Await ED open means that the
evacuation fan is not started until all
evacuation dampers are open. If you
specify NO, the fan starts after 20
seconds or when the evacuation
dampers are open.
•Start/ForceOp means that the fan is
started when the forced opening input
is closed.
CONFIGURE RELAY 2:
▲ Start/ForceOp: YES
| Test run for: ►600s
| Test weekday: ►Mon
34. (Continuation of evacuation fan menu.)
•Test weekday and following
parameters define start of evacuation
fan. The test is run the first week in
the selected month. If no month is
selected the test is never carried out.
Manual test of the evacuation fan is
possible by the menu that occurs when
configuration of an evacuation fan at
relay 2. Before the fan is started, the
ventilation dampers are closed and the
evacuation dampers are opened. This
test is never carried out in sequence,
regardless of the setting.
Automatic reset when
External fire alarm
Input goes back to
normal: NO
19.
Select if input 9-10 force manual or automatic
reset.
KSUC/XDG1 Relay 1
is controlled by:
►Fan Relay 1
41-47.
All the relays in the various models of KSUC
can be connected to the four different relays in
the KSUA. Menus 18 to 23 are used to change
the settings.
SETTINGS
▲ ModBus I/O
| ►Print Settings
▼ Change Password
26.
This function is used to document the entire
installation. The Modbus port is used as the
output, and is connected to the serial port of a
PC via a small adapter, KS232 or KSUSB. A
communication program is used in the PC, for
example Windows HyperTerminal. This
program is installed as standard on most PCs.
Set the program parameters to 9600 bps, 8 bits,
no parity. Set the emulation to TTY and the
font to Courier New. You will then be able to
save the entire output to file or print it on
paper.
To output the data, you will need to physically
disconnect any Modbus connection.
SETTINGS
▲ Change Password
| Set Defaults
▼►Timeout handling

Page 11
24.
Normally, the system is set to critical state on
a communication error. If this is not desirable,
it can be disabled in this menu to delete the
function. Think about security problems!
Description of Modbus.
The KSUA acts as a slave and must be
connected to a Modbus server. According to
the standard, the server must clearly define a 1
on the line before transmission takes place.
This can be done with resistance on the line to
+5V or 0V, or using software by sending a
logical 1 before transmission takes place. See
the description for the relevant server. Modbus
can be used for effective monitoring of the
entire system. It can obtain information about
the status of each damper, how each detector is
working and provides an overview of all
possible alarms. Modbus can also be used to
control day/night mode, the damper exercise,
resets and much more. Certain Modbus
parameters can be set in the communication
menu. The factory setting is 19200bps, 8 bits,
even parity and address 10. RTU mode is
always used. Modbus over TCP/IP is an
optional extra. See the separate description
Troubleshooting.
The special status menus in the KSUA can be
used as a very good diagnostics tool covering
every part of the system. One serious pitfall
that cannot be diagnosed is giving the same
address to more than one slave unit. It is
therefore extremely important to assign
addresses correctly during installation.
Procedure
If an error occurs, always start by looking at
the log. The log contains information about
what happened. To find out more detail about
the error, you can then use everything in the
six status menus to physically inspect
individual dampers. One good tip is to look at
the status screen for I/O Relays and Inputs.
Menu 6. You can see from this menu whether
the KSUA went into a specific state because of
an external system. It can take a lot of work to
find out what exactly caused the problem. The
KSUA includes tools to help with diagnostics.
Finding the slaves
The easiest way to find out which slaves are
installed is to look at menu 4. You can scroll
through all the dampers for the relevant slave
unit by simply turning the encoder knob. The
bottom part of the menu indicates if contact
with a slave has been lost.
Smoke detector error
It is not unusual for something to go wrong
with a smoke detector. Go to menu 5 and
check the current for the detector with the
problem. The standby current should be
10mA. If the current increases to around
20mA, the service alarm is triggered and the
detector needs to be cleaned. If the dirt
continues to build up, the current gradually
increases until the alarm limit of 40mA is
reached. This will trigger a real smoke alarm,
more or less affecting the entire system.
A manual reset is required after an automatic
function test
The ”FAN 1” output has probably been
connected to the wrong input in the ventilation
system, which has locked itself as a result.
A manual reset is required after night mode
Requires night mode signal from ventilation
system to the KSUA.
Locking may occur if night mode is indicated
by the KSUA, which then sends a stop signal
to the system via fan lock on the FAN 1
output. This locking may be bypassed by
specifying that there is no fan stop in night
mode. The fans are still locked if a smoke
detector is triggered and during the function
test.
Other
See the troubleshooting section in the KSUB
description, which contains lots of tips about
connecting dampers, for example.

Page. 12
Disposal of old Electrical & Electronic Equipment (Applicable
throughout the European Union and other European countries with
separate collection programs)
This symbol, found on your product or on it’s packaging, indicates that this
product should not be treated as household waste when you wish to dispose of
it. Instead, it should be handed over to an applicable collection point for the
recycling of electrical and electronic equipment. By ensuring this product is
disposed of correctly, you will help prevent potential negative consequences to
the environment and human health, witch could otherwise be caused by
inappropriate disposal of this product. The recycling of materials will help to
conserve natural resources. For more detailed information about the recycling
of this product, please contact your local city office, household waste disposal
service or retail store where you purchased this product.