UAB KOMFOVENT we reserve the right to make changes without prior notice
RHP-C5.1_21-01
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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 default. To do
this, user should to restore the factory settings of the air handling unit.
7.7. Additional control options
7.7.1. 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 ac-
tuator 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 terminals (IN4) of the external control (e. g., by connecting
additional device: thermostat, switch, etc.), the air cooling function will be activated, and the mixing
valve actuator (TG1) will be controlled under the air cooling mode.
7.7.2. Inverter direct evaporation cooler control
By default all RHP units are provided with inverter type DX cooler control, which allows stepless
control of the compressor. 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. 6.3 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.
7.7.3. 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 6.3 b). Depending on how much will be cooling steps and how it will be divided on steps, it is rec-
ommended 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 con-
nected 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.
The function of step rotation is provided, when capacities of coolers are the same.
The number of direct evaporation cooling units must be provided in advance.
1
Factory setting.
