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H4EKO-D
d. Summer mode – Only the DHW pump is active.
2.
Current date, room thermostat indication, flue gas temperature.
3.
The entered and actual temperature of the central heating measured at the back of the boiler on the boiler outlet
water pipe.
4.
Indication of current fan speed.
5.
Boiler status
6.
Indication of the CH pump operation
7.
Indication of the DHW pump operation
8.
Indication of the auxiliary pump operation
9.
Indication of activation of the master mixing valve
10. Indication of the opening of the mixing valve when connected and activated.
11. Navigation key for entry and navigation in the menu.
12. Exit the menu, cancel the selection.
13. THE CONTROL UNIT'S BASIC FUNCTIONS
The control unit controls the water circulation (CH) pump, the domestic hot water (DHW) pump, the secondary circuit circulation
pump, the mixing valve, the buffer tank and the exhaust fan.
It is also possible to control two additional mixing valves using the 431N modules. With this type of controller, the fan speed is
determined by measuring the boiler temperature and the flue gas temperature measured at the boiler outlet. The fan operates
continuously and its speed depends directly on the actual boiler temperature, flue gas temperature and the difference of these
parameters in relation to the specified temperature.
1. Homepage
During the controller's normal operation, the homepage is displayed on the graphic display. Depending on the current operating
mode, the corresponding display panels are displayed. Pressing the impulse controller moves the user to the menu's first level.
The display shows the first four options of this menu.
Display the next options by rotating the impulse controller. To select a function, press the impulse controller. Changing the
parameters is done in a similar way. To make a change, you need to confirm it. This is achieved by pressing the impulse controller
at the word CONFIRM.
Press CANCEL if you do not want to make any changes to the function. Use the EXIT button to exit the menu. ATTENTION: Standby
mode does not turn off the controller's power supply.
2. Igniting / Extinction
With this function, the user can easily ignite/extinguish the boiler. After the initial filling and igniting of the fuel, select the Igniting
function, which automatically controls the fan. After the optimal parameters of the central heating and flue gas temperatures
have been reached, the boiler switches to the operating mode smoothly. After the boiler has switched to operating mode, the
display will show Work instead of Igniting.
From now on, the option performs the fan on/off function. With this function, we can turn the fan on/off at any time for a certain
period of time.
3. Screen view
With this function, the user can select one of four views of the main controller operation panels:
•
CH panel screen (shows the current boiler operating mode),
•
main valve (shows the main valve's operating parameters),
•
valve 1 (shows the operating parameters of additional valve 1),
14
Instructions
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