UAB KOMFOVENT we reserve the right to make changes without prior notice
C5.1-20-05
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How to connect the unit directly to your computer:
1. Plug one end of the network cable into the controller port on the unit (see Picture 1.3 a) and the other end
to the computer.
2. Go to the properties of your network card and enter IP address, e.g. 192.168.0.200, and subnet mask
255.255.0.0.
3. Open the web browser on your computer and disable all proxy servers in the settings.
4. In the address bar of your web browser enter the IP address associated with the air handling unit; the default
IP address is 192.168.0.50. You can change it at any time on the control panel or from web browser (see
connection settings).
Note:
It is recommended to download the latest version of your web browser before use.
5. If the connection is successful, a window prompting to enter your user name and password appears:
Note:
the user name is
“user”
. The default password is also
“user”
; after logging in, the user can later change
the password to any other of his/her choice (see user interface settings).
If the user has forgotten the modified password, it can be set to the de
-
fault. To do this, user should to restore the factory settings of the air
handling unit.
2.7. Additional control options
2.7.1. Combined water coil control
For the air handling unit with the combined water coil (Combi-coil – heater and cooler in one) the control of the
mixing valve actuator is provided both under the air heating and cooling modes. The actuator is connected to
the control terminals of the heating circuit and operates only under the heating mode by default. However upon
transfer of the feedback signal confirming that there is cold water within the circulation system to the control ter
-
minals (IN4) of the external control (e. g., by connecting additional device: thermostat, switch, etc.), the air cool-
ing function will be activated, and the mixing valve actuator (TG1) will be controlled under the air cooling mode.
2.7.2. Inverter direct evaporation cooler control
By default all units are provided with inverter type DX cooler control, which allows stepless control of the com-
pressor. For the inverter unit power control, there is a modulated signal (TG2), as well as signals: cooler start
(DX1), cooling demand DX2, heating demand DX3 (see Pic. 1.3 b).
There are three different control methods:
1. Universal control, suitable for most cooler units
1
.
2. Control adapted to Panasonic cooler units.
3 Control adapted to Daikin cooler units.
2.7.3. Multi-level control of direct evaporation cooler
For air cooling in the air handling unit there is provided 3 control contacts (connection is shown in Picture 1.3 b).
Depending on how much will be cooling steps and how it will be divided on steps, it is recommended to select
theoptimal control method. If the capacity of all steps is the same, then only three control steps are possible.
If cooling capacities of steps are close to ratio 1-2-4 (the capacity of each of the following steps is double the
previous), then cooler control will be realized with seven cooling steps.
Example: To the terminals DX1 is connected 1kW cooler, to DX2 – 2kW and to terminals DX3 connected
cooler with 4kW capacity. Control will be in steps:
1: 1 kW; 2: 2 kW; 3: 1 kW + 2 kW; 4: 4 kW; 5: 1 kW + 4 kW; 6: 2 kW + 4 kW; 7: 1 kW + 2 kW + 4 kW.
1
Factory setting.
