37
7
SETTING AND ADJUSTMENT
The functioning of the unit can be influenced by means of the (parameter) settings in the boiler
controller. Part of this can be configured directly via the operating panel, another part can only
be adjusted by means of the installers code.
7.1
Direct via operating panel
The following functions can be operated directly.
Unit on/off
The button activates the unit.
When the unit is active, the green LED above the button will be lit. When the unit is
off, one bar will be lit on the service display (
-
) to show the unit is connected to the
electricity supply. In this operation setting, the temperature display will also show the
pressure in the CH installation (in bar).
Summer mode.
When parameter q is set to a value unlike 0 summer mode can be activated pressing the
button. In Summer mode the central heating has been shut off while DHW remains
active.Summer mode can be activated by pressing the button. again after activating the
boiler.On the display [So], [Su] or [Et] appears (the code on the display depends on the setting
of parameter q).
Summer mode can be deactivated by pressing the button twice. The boiler will then be in
normal functional mode again.
Change settings of the various functions:
Pressing the button for 2 seconds, will take you to the users setting menu (LED at
and the
number display will start to flash). If you press the button repeatedly, a different function LED
will flash each time. When the LED flashes, the appropriate function can be set with the and
button. The set value is displayed on the display.
The on/off button closes the settings menu and the changes are not saved.
The reset button closes the settings menu and saves the changes.
When no button is pressed for 30 seconds, the settings menu will automatically be closed and
the changes are saved.
•
Maximum CH supply temperature
Press the button until the LED at
starts flashing.
Use the and button to enter the temperature between 30°C and 90°C
(default value 80°C).
•
DHW Tank temperature
Press the button until the LED at starts flashing.
Use the and button to enter 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 § 7.2.
Summary of Contents for Rotex GW-30 H12
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