Komfovent C4.1 User manual

EN Electrical installation and Operation Manual
C4.1

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C4.1-16-08
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. Conguration 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-
tially hazardous substances that are generally associated with EEE. At the same time, your cooperation in the
correct disposal of this product will contribute to the effective usage of natural resources. For more information
about where you can drop off your waste equipment for recycling, please contact your local city ofce, waste
authority, approved WEEE scheme or your household waste disposal service.

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C4.1-16-08
1. ELECTRICAL INSTALLATION MANUAL
Installation works can be performed only by the specialists that have required qualication. During installation
following requirements must be fullled.
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 ush 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
(+) RedGreen (B)
Yellow(A)
(+) Red
Green (B)
() White Yellow (A) () White
(+) RedGreen (B)
Yellow(A)
(+) Red
Green (B)
() White
1.2 Picture

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Control panel connection and other cable thicknesses are specied 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 shing 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 tted with
an external control box (see Picture 1.4 b), which is connected to the unit with a JW1 cable. Some elements
specied below are connected to the contacts of the box.

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C4.1-16-08
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°
1
6:
30
Air flow, %
Supply Extract
20 20
16:30
20,6°
16:30
20,6°
1
6:
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 ve points:
• Overview;
• Scheduling;
• Functions;
• Settings;
• On/Off.

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2.4.1.1. Alarms
This menu displays the notication 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 o
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 rst 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
specid 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 noti-
cation bar (see chapter 2.2).
Applications of the OVR function:
• Maintenance of CO2quantity in room – by adding an additional CO2
sensor (with relay), the main user-set ventilation rate at higher CO2will 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 ow
90 %
Extract ow
90 %
Time
10 min.
Override function
16:30
20,6°