Operation Manual

13
6. Boiler operation
Description of the control panel:
Control panel is simple and intuitive and displays the boiler functions.
The panel uses colour-coding and graphical division of the heating and DHW preparation sections. LEDs
positioned between the buttons for setting the temperature higher/lower (up/down arrows) are turned on if the
particular mode is selected (i.e. either the DHW
2
preparation mode or the heating water mode marked TOP).
If the display shows any other variable, pressing one of the ▲ , ▼ buttons (1) displays the heating water
temperature (the LED “°C” TOP is turned on).
If the display shows any other variable, pressing one of the ▲ , ▼ buttons (2) displays the DHW temperature
(the LED “°C” TUV is turned on).
Changing the value of the desired variable: When the heating water temperature is displayed (the LED “°C”
TOP is on), the first pressing of one of the heating temperature setting buttons displays the setting for the
required value of this temperature. This is indicated by the flashing of LED “°C” TOP. Required value can be
changed within the ranges defined in the service menu. The set value becomes automatically registered in the
memory after 15 seconds of inactivity (measured after the last button was pressed).
The required DHW temperature is set in a similar fashion (by the DHW temperature setting buttons).
The five LEDs below the main display show the variables which are currently set or indicated on the 3-digit
display:
- if the LED “°C” (TOP or TUV) is on, the display shows the temperature of water in the heating or DHW
circuits
- if the LED “
IN
/
OUT
°
°°
°C ” is on, the display shows the temperature of the outdoor or room temperature sensors
- if the LED “HDO” is on, the MRC signal is activated and the boiler produces heat in the low tariff
- if the LED “bar” is on, the display shows the pressure in the TOP system in bars
Automatic control elements (user access):
1. Buttons for displaying heating temperature settings ▲ , ▼ (1) – higher/lower, additionally, if
selected, browsing through the service MENU
2. Buttons for displaying DHW temperature settings ▲ , ▼ (2) - higher/lower, the flashing value of
the selected variable can be also changed in the menu)
3. Heating on/off button O/I (MENU) (3) (press shortly), open the MENU (press for more than 2
seconds), exit the MENU (press shortly)
4. DHW heating on/off button O/I (ENTER) (4) (press shortly), ENTER (press shortly only in the
MENU)
5. SELECT – main display selection button (SELECT) (5):
• temperature (according to the menu and selected option)
• water pressure (bar)
• output (kW)
• error messages (last error)
• heating mode
6. 3-digit 7-segment LED display
7. 7 LED indicators for the selected functions
2 The Czech abbreviation for DHW is TUV: translator's note.