Full Text Searchable PDF User Manual
EN
Electrical installation and Operation Manual
C4.1
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Content
1. ELECTRICAL INSTALLATION MANUAL
............................................................................... 4
1.1. Electric Power Supply Connection ....................................................................................... 4
1.2. Requirements for the installation of the control panel .......................................................... 4
1.3. Kitchen Hood Connection ..................................................................................................... 5
1.4. External elements connection .............................................................................................. 5
2. C4.1 OPERATION MANUAL
.................................................................................................... 7
2.1. Unit control............................................................................................................................ 7
2.2. Control panel indication ........................................................................................................ 7
2.3. Operation modes selection ................................................................................................... 8
2.4. Menu ..................................................................................................................................... 8
2.4.1. Overview .................................................................................................................... 8
2.4.1.1. Alarms ........................................................................................................... 9
2.4.1.2. Detailed information ...................................................................................... 9
2.4.2. Scheduling ................................................................................................................. 9
2.4.3. Functions ................................................................................................................. 10
2.4.3.1. Setpoint sliding ........................................................................................... 10
2.4.3.2. OVR function .............................................................................................. 10
2.4.4. Settings .................................................................................................................... 11
2.4.5. Unit switching on or off ............................................................................................. 11
2.5. Configuration of automation functions
................................................................................ 11
2.6. Troubleshooting .................................................................................................................. 12
This symbol indicates that this product is not to be disposed of with your household waste, according to the WEEE
Directive (2002/96/EC) and your national law. This product should be handed over to a designated collection point, or
to an authorised collection site for recycling waste electrical and electronic equipment (EEE). Improper handling
of this type of waste could have a possible negative impact on the environment and human health due to poten-
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about where you can drop off your waste equipment for recycling, please contact your local city office, waste
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1. ELECTRICAL INSTALLATION MANUAL
Installation works can be performed only by the specialists that have required qualification. During installation
following requirements must be fulfilled.
It is recommended to lay control cables separately from power cables in
a distance no less than 20 cm.
Connector connection is performed strictly according to numeration giv-
en in wiring diagram, or adequate markings (see wiring diagram).
When disconnecting unit sections, do not pull by connecting wires and
cables!
Before starting any operations inside the unit, make sure that the unit is
switched off and the power supply voltage is shut off.
1.1. Electric Power Supply Connection
Air handling unit voltage is 230 V AC; 50 Hz , therefore it is necessary to install the socket with grounding of
corresponding capacity (see wiring diagram). Electric power supply cable type is indicated in electric diagram.
All units must be connected to the stationary installation by solid cable through
10A circuit breaker with 300 mA current leakage protection (type B or B+).
Before connecting unit to the electrical power supply, it is necessary to
check whether earthing has been installed properly in conformance with
electric safety requirements.
1.2. Requirements for the installation of the control panel
1. The control console should be installed in a room where the following conditions are ensured:
1.1. ambient temperature: 0 ºC ... 40 ºC;
1.2. relative humidity range: 20 % ... 80 %;
1.3. protection against dripping of water (IP X0).
2. Control panel connection is provided through a hole in the back or bottom side.
3. The panel can be mounted on a flush mounting box or in any other place just screwing two holes on the
fastening surface.
4. The control panel is connected to the controller box. The length of the cable for connecting the panel with
the unit may not exceed 150 m.
Do not use any other type or size screws but those that are packed to-
gether for control panel mounting. Wrong screws may damage electron-
ics board.
Control panel connection
Yellow (A)
( ) White
(+) Red
Green (B)
Yellow (A)
(+) Red
Green (B)
( ) White
Yellow (A)
( ) White
(+) Red
Green (B)
Yellow (A)
(+) Red
Green (B)
( ) White
1.2 Picture
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Control panel connection and other cable thicknesses are specified in
the wiring diagram!
Remove protective screen tape, before mounting front cover on the con-
trol panel!
1.3. Kitchen Hood Connection
Air handling units DOMEKT R 200 V have possibility of kitchen hood connection (in the functional diagram it
is marked by KH). After fishing the cable through the rubber gasket, (located in the wall) it has to be connected
to connection box J11 (1.3 Picture).
Kitchen Hood Connection
1.3 Picture
1.4. External elements connection
Depending on the model of a Domekt air handling unit and component parts, several additional cables can be
led outside the unit for connecting external elements of the automatics:
• External control contacts.
They are designed in all Domekt units. Outside the unit, a cable is led (see
Picture 1.4 a), to which an external control device (switch, sensor, timer, button, etc.) can be connected,
i. e. interconnection of normally open contacts (short circuit) will activate the OVR function. A more detailed
description of connection possibilities is presented in Chapter 2.6.
1.4 a Picture
• External control box.
If a water heater or a cooler is designed in the Domekt unit, then the unit is fitted with
an external control box (see Picture 1.4 b), which is connected to the unit with a JW1 cable. Some elements
specified below are connected to the contacts of the box.
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The connection diagram of the external elements is presented on the
internal side of the doors of the control box.
• Air damper actuator.
Domekt air handling units can be ordered with the prepared connection for air damp-
er actuators. In this case, an additional cable is led outside the unit. 230V AC supply and control voltage is
provided for the connection of the actuator.
Note: For units with water heater the connection of air damper actuators is designed from the external control
box; therefore, connection should not be ordered additionally.
For all units with a water heater, it is recommended to connect an actuator
with a spring-return mechanism, i. e. in the case of loss of voltage, the
actuator should close the air damper.
• Supply air temperature sensor.
At units with an electrical heater, the sensor is factory-installed inside
the unit. At units with a water heater or a cooler, the sensor is mounted outside; therefore, it is necessary to
install it in the supply air duct downstream the water heater (cooler) section. The minimum distance from the
air vent of the section to the sensor should be at least two diameters of the circular connection.
• Return water temperature sensor.
It is connected to the external control box and is mounted on the re-
turn water pipe by screwing it into the designated vent. It is recommended to thermally insulate the sensor.
• Heating/cooling valve actuator.
It is connected to the external control box. For hot/cold water mixing, it is
provided connection for actuator with 24 V AC supply voltage and 0...10 V DC control signal.
• Circulation pump.
It is connected to the external control box. 230 V AC supply voltage is provided. The
pump is started up/shut down by the circuit breaker QF1.
• Feedback signal for heating or cooling.
It is connected to the external control box. By default, the air han-
dling unit is designed to operate with the water heater. However, the design of the control box provides for
two terminals, by interconnecting (short-circuiting) of them the heater mode is reversed to the cooler mode.
When the operation of the unit is switched over to the cooler mode, water
freezing protection is deactivated. Therefore, when the unit operates in
the cooling mode during the winter season, it is necessary to ensure that
the water contained in the heater does not freeze.
1.4 b Picture
1 – external elements control box
2 – return water temperature sensor
3 – supply water temperature sensor
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2. C4.1 OPERATION MANUAL
2.1. Unit control
Air handling units control system ensures control of the physical pro-
cesses that are taking place inside the air handling unit.
Control system consists of:
• controller module;
• temperature sensors and control panel, which can be installed in
the convenient place for the user.
Control panel (2.1 Picture) is designed for remote air handling unit
control, setting and display of controller parameters.
2.2. Control panel indication
Selection
of operation
modes
Menu
Indication of unit operation
modes and functions
Supply air temperature/set-
ting of temperature value
Time
16:30
20,6°
16:30
20,6°
16:30
20,6°
16:30
20,6°
Menu
Scheduling
Functions
Overview
Settings
Off
Menu
Scheduling
Functions
Overview
Settings
Off
Monday
Start
16:00
Stop
20:00
Start
16:00
Stop
20:00
Start
16:00
Stop
20:00
Monday
Start
07:30
Stop
11:00
Start
11:30
Stop
16:00
Start
16:00
Stop
17:00
“off” paspaustas
16:30
Oro srautas, %
Tiekimas
Šalinimas
20
20
16:30
Nustatymas
30,0°C
15,0°C
30,0
Indication
of ventilation
level
Explanation of the displayed symbols:
Setpoint sliding (the value increases)
Setpoint sliding (the value decreases)
Supply air
Extract air
Fan operation
Energy recovery operation
Air heater operation
Air cooler operation*
Weekly operation mode
„Override“ mode
Alarm signal
2.1 Picture. Control panel
* Air handling unit is provided with air cooling function. However, cooling should be ordered in advance. Then outside the unit will
be installed additional control cable, and for supply air cooling will be added duct coil DCW (in case of water cooling) or duct coil
DCF with outside cooling unit (in case of DX cooling). Cooling control is provided by 0...10V signal.
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2.3. Operation modes selection
Three operation modes are possible, one of them user can directly select from control panel main window:
• Away;
• Home;
• Boost.
The mode is selected by tapping one of modes buttons located in the main window. The corresponding but-
ton becomes black, when the selected mode is activated. The user can set ventilation intensity separately for
supply and extract air in each operation mode. Ventilation intensity mode window is opened by pressing and
holding one of modes buttons. The supply air temperature is set by tapping round button in the centre of main
window.
Away
Home
Temperature setting
Boost
16:30
20,6°
16:30
20,6°
16:30
Air flow, %
Supply
Extract
20
20
16:30
20,6°
16:30
20,6°
16:30
Setpoint
30,0°C
15,0°C
30,0
Menu
Scheduling
Functions
Overview
Settings
Off
Alarms
Detailed information
Overview
2.4.1. Overview
All information, relating to the operation and alarms of the unit, is detailed in over-
view menu.
2.4. Menu
Menu of panel consists of the five points:
• Overview;
• Scheduling;
• Functions;
• Settings;
• On/Off.
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2.4.1.1. Alarms
This menu displays the notification of existing faults. After failure elimination (see
chapter 2.6), messages are deleted by selecting “Delete”. By clicking on „History“
can be viewed up to 50 registered alarms.
13B
Heater off
03A
Rotor stopping
Alarms
Delete
History
2.4.1.2. Detailed information
All temperature sensor readings, functioning of separate air handling unit elements
and other detailed information is available in this menu.
Detailed information
Heat exchanger
100 %
1 / 2
Supply air temperature
21,9 °C
Water temperature
25,3 °C
Supply fan
60 %
Exhaust fan
70 %
2.4.2. Scheduling
Menu for planning of the air handling unit operation
according to the weekly program.
Three events can be set up for every week day.
One of three modes can be assigned to each event.
Every event has a timing, when the selected mode
should be active. The timing is set by tapping “Start”
and “Stop”. When the mode “Standby” is selected, the
fans are stopped and the unit is inactive until the next
event.
Enable
Monday
Wednesday
Tuesday
Thursday
Scheduling
1 / 2
Friday
Example:
Monday:
07:30 – 11:00 Away mode is active
11:30 – 16:00 Home mode is active
16:00 – 17:00 Boost mode is active
The rest of the day the unit operates in Standby mode.
Note: Every event start and end time is set from 0:00 to 24:00 h. The events should be set consistently from
the first one at the top of the window.
Monday
Starting
16:00
Stopping
20:00
Starting
16:00
Stopping
20:00
Starting
16:00
Stopping
20:00
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2.4.3. Functions
In this menu item, the user can activate and set additional unit functions:
• Setpoint sliding;
• OVR function.
blank box: function is not activated;
grey box: function is activated.
Functions
Setpoint sliding
Override function
2.4.3.1. Setpoint sliding
The setpoint can be shifted from -9 °C to +9 °C from the temperature set value at
specifid by user time period. Event start and end time is set from 0:00 to 24:00 h.
When setpoint sliding is active according to set time period, the setpoint sliding
icon will be displayed in the main window (see chapter 2.2).
Enable
Setpoint
-1.0°C
Stop time
14:00
Start time
11:00
Setpoint sliding
2.4.3.2. OVR function
Air handling units have the OVR (”Override”) function. OVR function is intended
for remote unit control by an additional external device. After the activation of
this function the current mode of operation will be ignored and the unit will oper-
ate at a set intensity.
The OVR function can be activated in two ways:
1. By the external control device.
Connection is described in chapter 1.4.
After interconnecting (short-circuiting) the FC contacts (see the electrical
diagram), the unit will operate in the selected OVR mode and after discon-
nection it will return to the previous operation mode.
2. By control panel.
In this case there is no need for additional connections
to external control devices, the function is activated from the panel, and the
unit will operate in the chosen OVR mode until the internal timer is active
(from 1 to 90 minutes). When this function is active, the intensities of the
supplied air and separately for the exhausted air fans can be adjusted from
20 to 100 %.
When OVR function is activated, the modes’ buttons in main window
are inactive. What is more, the corresponding icon appears in notifi
-
cation bar (see chapter 2.2).
Applications of the OVR function:
• Maintenance of CO
2
quantity in room
– by adding an additional CO
2
sensor (with relay), the main user-set ventilation rate at higher CO
2
will be
switched to the maximum or other intensity set until the room is ventilated,
and then again will return to the previously mode.
• Maintaining relative humidity in the room
– after contacting the external
relative humidity sensor (with relay), automatically switching to maximum or
different set ventilation intensity the humidity level desired by the user will
be maintained.
• Ventilation on demand
– when the motion sensor is connected to the con-
trol contacts, ventilation will be adjusted according to demand, i.e. if people
are indoors, ventilation will be carried out according to the set OVR intensity
and if there‘s nobody in the room – the unit will operate according to the main
user intensity, for example, the minimum.
Enable
Supply flow
90 %
Extract flow
90 %
Time
10 min.
Override function
16:30
20,6°
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• Ventilation with additional air extraction
– connection of additional extracting device, for example, a
kitchen hood or other extraction device without a separate fan, is intended, thus the air extraction is carried
out by the unit itself. After the activation of the function the supply and exhaust air fans start operating at
maximum intensity.
• Negative pressure compensation
– intended for systems where air extraction can be carried out in a
separate air extraction fan. Thus, for the compensation of negative pressure in room, the OVR function can
be activated by separate control contacts. After the activation of the function, only supply fan starts operat-
ing at maximum intensity and the exhaust air fan operates at minimum intensity or goes off.
Note: To make this function work, namely to stop the exhaust air fan in the OVR mode, the jumper No 4 on the
automation box should be ON (see chapter 2.5).
2.4.4. Settings
This menu is for air handling unit and the user parameters setting. The user can
switch the menu languages, change the screen saver, panel lock, touch sound,
season, time and date.
For the air handling unit operating in most economical mode, summer and
winter seasons have been provided.
“Summer”: heater operation is blocked but allowed cooler operation.
“Winter”: cooler operation is unavailable but allowed heater operation.
Time and date is required for air handling unit operation planning.
2.4.5. Unit switching on or off
This menu item is intended for unit switching on/off.
After switching the unit off, it will not operate according to weekly pro-
gram.
2.5. Configuration of automation functions
Switches (2.5. Picture) on the automatic box can be used for the selection of heat
exchanger type, heater and fan, and the OVR function mode. Settings take effect
only after rebooting the power supply.
Switch No.
ON
OFF
1
Rotary heat exchanger
Plate heat exchanger
2
Water heater
Electric heater
3
Is not used
Is not used
4
OVR mode when the exhaust air fan is off Usual OVR mode
Automation configuration switches
2.5 Picture
Screen saver
On
Touch sound
Clik
Season
Winter
Panel lock
Off
Settings
Language
English
Time / Date
Menu
Scheduling
Functions
Overview
Settings
Off
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2.6. Troubleshooting
If the unit is inoperative:
• Make sure the feeding cable is plugged into an electrical outlet.
• Check all safety fuses of the automatic control block. In case of need, replace the faulty fuses with the new
ones of the same electric parameters (fuses parameters are in wiring diagram).
• Make sure there is no failure message in the control panel. If there is a problem, you must frst remove it. To
remove the problem, follow the table 2.6 describing failures.
• If nothing is shown on the control panel, check the cable that connects the remote panel to the unit.
If air flow is reduced:
• Check set ventilation intensity level (see chapter 2.3.).
•
Check air filters‘ condition. If needed, replace with the new ones.
•
Check supply/exhaust air diffusers adjustment.
• Check for clogging outside air intake grille.
• Check if system ducting is not damaged and there are no extraneous things inside.
If supplied air is too cold:
• Check temperature setting (see chapter 2.3.).
• Check if „Winter“ mode is set on the panel.
• Check if there is no failure indication on the control panel (see table 2.6.).
• Check fuse F2 located on the automatic box.
If the unit has been stopped and there is alarm icon (see chapter 2.2.) in
the notification bar and sound signal, the failure needs to be eliminated!
The failure message is specified in the menu item “Alarms” (see chap
-
ter 2.4.1.1.).
Before starting any operations inside the unit, make sure that the unit is
switched off and the power supply voltage is shut off.
After the failure has been eliminated and power supply connected, the unit can be switched on only after
deleting the failure message. If the failure is successfully eliminated, the unit will operate in the previous mode.
However if the failure has not been eliminated, unit either starts operating and after some time it stops
again, or it does not operate and failure message is indicated.
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Table 2.6. Alarms indicated on the control panel, their possible causes and elimination methods
Message
Protection tripping
description
Possible Failure Cause
Failure Elimination
14B
Service time
Depending on the intensity
of unit operation, at a certain
time a periodic inspection
message appears on the con-
trol panel.
–
After disconnecting the unit
from power supply, it is nec-
essary to carry out periodic
inspection of the unit, i.e. to
check the air filter clogging
and the condition of the heat
exchanger, the heater and
fans.
19A
Low supply air temperature
If the supply air temperature
falls below the permitted value:
+5 °C, unit will stop operating
with 10 min. delay.
Malfunction of the heat
exchanger and/or heater.
Check temperature and sea-
son settings. Check the heat
exchanger and heater opera-
tion.
20A
Supply air overheating
If the supply air temperature
is above the permitted value:
+45 °C, unit will stop operating
with 10 min. delay.
Malfunction of the heat
exchanger and/or heater.
Check temperature and season
settings. Check the heat ex-
changer and heater operation.
13B
Heater off
Unit with electric heater has
protection from overheating at
70 °C, which can be activated
if the heater blow-cooling is
insufficient. Unit operation is
not terminated.
Heater is disconnected due to
low air flow.
When heater cools down, pro-
tection restores automatically.
It is recommended to increase
ventilation intensity level.
4A
Electric heater overheating
Unit with electric heater has
emergency protection from
overheating at 100 °C, which
can be activated in case of the
heater failure. Unit operation
is terminated.
Electric heater overheating
protection is on.
It is possible to restore emer-
gency overheating protection
with button “RESET” (located
on the heater), only if before
heater overheating cause has
been clarified and eliminated.
27A
Return water low tempera-
ture
In the unit with water heater,
when the water temperature
falls below the permitted value
of +10°C, the unit will stop op-
erating.
Failure of the hot water prepa-
ration and supply function in
the heating system.
Check circulation pump and
heating system condition,
heating valve actuator perfor-
mance.
28A
Frost possibility
In the unit with plate heat ex-
changer, if the freezing protec-
tion of the heat exchanger is
activated and is not restored,
the unit will stop operating.
Temperature of the air passing
through plate heat exchanger,
dropped lower allowable level.
Check by-pass damper con-
dition and actuator perfor-
mance. It is recommended to
decrease ventilation level.
3A
Rotor stopping
When there is no signal from
the rotor’s rotation sensor, if
the “Winter” season is set,
the unit will stop operating in
2 min.
The belt is broken, failure of
the rotor motor or rotor sensor.
Check rotor drive and rotation
sensor condition.
11B
Rotor stopping
When there is no signal from
the rotor’s rotation sensor, if
the “Summer” season is set,
the warning message appears
in 2 min. on the control panel.
The unit operation is not ter-
minated.
The belt is broken, failure of
the rotor motor or rotor sensor.
Check rotor drive and rotation
sensor condition.
9A
B1 sensor failure
When temperature exceeds
the maximum permitted limits:
-30 °C...+75 °C, the unit stops
operating immediately.
Supply air temperature sen-
sor is not connected or broken
down.
It is necessary to check sen-
sor connections or change the
sensor.
C4.1-16-08
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PARTNERS
AT
J. PICHLER Gesellschaft m. b. H.
www.pichlerluft.at
AU
Pacific HVAC
www.pacifichvac.com
BE
Ventilair group
www.ventilairgroup.com
ACB Airconditioning
www.acbairco.be
CZ
REKUVENT s.r.o.
www.rekuvent.cz
CH
WESCO AG
www.wesco.ch
SUDCLIMATAIR SA
www.sudclimatair.ch
CLIMAIR GmbH
www.komfovent.com/en/business/
more/contact-us/
DK
UNIQ COMFORT ApS
www.uniqcomfort.dk
AIR2TRUST
www.air2trust.com
EE
BVT Partners
www.bvtpartners.ee
FR
AERIA
www.aeria-france.fr
GB
ELTA FANS
www.eltafans.com
HR
Microclima
www.microclima.hr
HU
AIRVENT Légtechnikai Zrt.
www.airvent.hu
Gevent Magyarország Kft.
www.gevent.hu
Merkapt
www.merkapt.hu
IR
Fantech Ventilation Ltd
www.fantech.ie
IS
Blikk & Tækniþjónustan ehf
www.bogt.is
Hitataekni ehf
www.hitataekni.is
NL
Ventilair group
www.ventilairgroup.com
DECIPOL-Vortvent
www.vortvent.nl
NO
Ventistål AS
www.ventistal.no
Thermo Control AS
www.thermocontrol.no
PL
Ventia Sp. z o.o.
www.ventia.pl
SE
Nordisk Ventilator AB
www.nordiskventilator.se
SI
Agregat d.o.o
www.agregat.si
SK
TZB produkt, s.r.o.
www.tzbprodukt.sk
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