Komfovent DOMEKT C8 automation, Руководство пользователя

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UAB KOMFOVENT we reserve the right to make changes without prior notice
DOMEKT_C8_guide_21-07
EN
The following sections are displayed in the settings window:
USER INTERFACE – you can use it to change the menu language, flow measurement units as well as enter the device
name:
• Selected language will be applied to a web browser and a control panel.
• Device name is displayed at the top of the web browser window. If one computer is used to control several air handling
units, we recommend naming every device differently (for example, by room, address, etc.).
DATE/TIME – setting the time and date that are used for weekly operations schedules or other functions.
CONNECTIVITY – allows configuring the network, Modbus and BACnet settings.
“Status” line shows connection between AHU and internet:
• Disconnected – AHU is not connected to LAN or internet network.
• No internet access – AHU is connected to LAN network and communicates with router, but internet is not accessible.
• Connected – AHU has internet access.
In the „Modbus RTU“ line, it can be selected what device is connected to the terminals 1-2 of the C8 main board (See
Domekt installation manual). Additional control panel for AHU, building BMS system or external fire damper controller can
be used. If mentioned terminals on the board are not used, do not change this setting and leave it as “Panel”.
INFORMATION – overview of the controller and control panel firmware versions.
• By pressing “Generate” button, QR code will be generated, that can be used when connecting via Komfovent Control
mobile app.
• For detailed performance analysis, you may download a device logbook which contains weekly operation data. To open
a logbook, you will need a “Log plotter” app that you can download from the “Komfovent” website. This data may also
help in the event of a failure and may facilitate repair procedures, therefore, we recommend downloading an operation
logbook and handing it over to the authorised service personnel.
• User-made device settings may be saved in a settings file (for example, saving a weekly schedule or desired air volumes
and temperature). This allows easy transfer of settings to another unit of the same type.
LOGIN PASSWORD – here you can change your password used for connecting to the unit via web browser. The default
password is user , but it may be changed to any other password, having at least 4 characters.
CONTROL MODE – allows changing the temperature control modes (see Chapter 2.1).
• Select a temperature control mode from “Supply”, “Extract”, “Room” and “Balance” (see Chapter 2.1).
CONTROL SEQUENCE – here you can activate duct-mounted heating or cooling devices (see “Installation Manual”) and
configure antifreeze protection of a plate heat exchanger.
• Frost protection – this setting is only available in units with counter-flow plate heat exchangers. This function is intended
to protect CF heat exchanger against freezing at low outdoor air temperatures and has the following settings:
Standard – the air-handling unit is stopped when outside air temperature drops below -4°C for longer than 1 hour.
Special – heat exchanger is protected against freezing by changing the intensity of airflows, i. e. by supplying less cold
outdoor air and extracting more warm indoor air, thus preventing frost formation. This type of protection is sufficient for the
temperatures up to -10°C.
Special frost protection mode changes the balance of airflows, which may lead to pressure diffe-
rences indoors, therefore, this mode is not recommended in airtight buildings (A+ or higher energy
efficiency class) or in houses with a fireplace.
External pre-heater
– pre-heater, installed inside an outdoor air duct, upstream the air-handling unit, is switched on as
soon as the heat exchanger freezing conditions occur. Efficiency of a heater depends on the outside air temperature, indoor
humidity and actual flow of ventilated air. Integrated pre-heater operates on demand to protect a heat exchanger against
freezing. Under very low indoor humidity conditions, it is unlikely that the heat exchanger would freeze even at very low
outdoor temperatures. To ensure proper operation of the pre-heater, a control panel or a separate humidity sensor must be
installed in the ventilated premises (see “Installation Manual”).
When using the pre-heater, other duct mounted heating or cooling devices cannot be connected.