ACV International
35
7
SETTING AND ADJUSTMENT
The functioning of the appliance is determined primarily by the (parameter) settings in the burner manager.
Part of this can be set directly via the operating panel; another part can only be adjusted using the installer
code.
7.1
Directly via the operating panel
The following functions can be operated directly:
Appliance on/off
The appliance is started using the
key.
When the appliance is in operation the green LED above the
key will light up. When the appliance is off
a singe dash lights up on the service display (
-
) to indicate that supply voltage is present. In this
operating mode the pressure in the CH installation (in bar) can also be read on the temperature display.
Summer Mode
When parameter q is set to a value other than 0 it is possible to activate “Summer Mode” by pushing the
button. During summer mode the Central Heating facility of the boiler is shut-off. The delivery of DHW
remains as before.
Summer Mode can be activated by pressing the
button. The sequence is Off – ON – Summer mode –
Off (etc). During Summer Mode the display is showing Su, So or Et (depends on the setting of parameter
q) See § 7.3, parameters.
Changing the settings of the various functions:
Holding the key pressed in for 2 seconds takes you to the user settings menu(LED at
and the figure
display start to flash). Pressing the key repeatedly results in a different function LED flashing each time.
When the LED is flashing the indicated function can be set with the and key . The value set is shown
on the display.
The on/off key closes the settings menu without storing the changes.
The reset key closes the settings menu and the changes are stored.
If no key is pressed during a period of 30 seconds, the settings menu is closed automatically and the
changes are stored.
Maximum CH supply temperature
Press the key until the LED at
starts to flash.
With the and key s set the temperature between 30°C and 90°C (default value 80°C)
DHW temperature (in combination with external DHW tank)
Press the key until the LED at
starts to flash.
With the and keys set the temperature between 40°C and 65°C (default value 60°C)
Control of external DHW tank
•
On: ( LED on), The external DHW tank will by heated continuously .
•
Eco: (
LED on) . The boiler will be heated / not heated depending on the information send by
the Open Therm thermostat (provided that the thermostat supports this function). When using an
on/off room thermostat or an Open Therm thermostat which does not support this function the DHW
tank will be heated continuousely..
•
Off: (Both LED’s off.) The boiler will not be heated.
Legionella prevention
When the boiler is connected to an indirect heated external DHW tank with a sensor connected to the
boiler is is possible to heat up the water stored in the tank up to a minimum temperature of 65°C. This
procedure can be executed on a daily or on a weekly basis (depending on the setting of parameter L).
See § 7.3, parameter list for additional information.
Resetting
When a blocking fault is indicated by means of a flashing LED above the key and a figure on the
display, the appliance can be restarted by pressing the reset key. Check the nature of the fault on the
basis of the fault codes in section 8.1 and resolve the cause of the fault if possible before resetting the
appliance.
