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UAB KOMFOVENT we reserve the right to make changes without prior notice
C6M_GUIDE2-19-04
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.
• Possible flow measurement units
– m
3
/h or l/s. These units will be applied while operating in CAV or DCV flow control
modes (see Chapter 2.1). Changing measurement units for VAV mode is not allowed; they are automatically changed to Pa.
• 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.
INFORMATION
– overview of the controller and control panel firmware versions.
• 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 flow and temperature control modes (see Chapters 2.1 and 2.2).
• Available air flow control modes
: CAV, VAV and DCV.
• Flow corrections
can be done with CAV or DCV airflow control, in cases where the unit’s measured air volume does not
match the actual airflow. This may also be due to design features of the duct system, for example, wrong diameter ducts,
excessive number branches or elbows, or installation without following the installation recommendations. When the VAV
mode is selected, the measurement limit for pressure sensors connected to the main board must be additionally entered
instead of the flow correction (see “Installation Manual”), i.e. maximum pressure Pa that the sensor is measuring by 10V
output (measurement limits are specified in the VAV sensor manual).
• Select a
temperature control mode
from “Supply”, “Extract”, “Room” and “Balance” (see Chapter 2.2).
CONTROL SEQUENCE
– here you can activate duct-mounted heating or cooling devices (see “Installation Manual”) and
configure antifreeze protection of a plate heat exchanger.
• Antifreeze protection
– this setting is only available in units with counter-flow plate heat exchangers. These devices are
equipped with pre-heaters which heat the outdoor air and protect a heat exchanger from freezing. Power of a heater
depends on the outside air temperature, indoor humidity and actual flow of ventilated air. Integrated pre-heater operates
only when there is a risk of heat exchanger to freeze. Under very low indoor humidity conditions, it is unlikely that the
heat exchanger would freeze even at very low outdoor temperatures.
The following antifreeze protection settings are available:
ON
– automatic protection with an integrated pre-heater is activated by default.
OFF
– protection may be switched off, but the unit will also be turned off when the outside air temperature drops
below -4°C.
External coil
– when an external heater, connected to AUX terminals of the main board, is used instead an integrated
pre-heater (see “Installation Manual”).
• Indoor humidity
– this setting is necessary for estimating efficiency of a pre-heater. When “Auto” setting is selected, indoor
humidity will be set automatically using an integrated humidity sensor and/or external humidity sensors connected
to B8 and B9 terminals of the controller (see “Installation Manual”). If the control panel is installed in an inappropriate
location (or is not used) and no outside humidity sensors are connected, uncheck the AUTO box and enter the indoor
humidity in the range of 10...90 %.
Wrong value of indoor humidity may cause antifreeze protection to malfunction and a counter-flow
heat exchanger to freeze.
Summary of Contents for Domekt CF 200 V
Page 1: ...DOMEKT User Manual EN ...
