23
ENGLISH
OPERATIONAL LOGIC
the product operates with the
POSSIBLE MODES
(described below):
• OFF
MODE
• ON
MODE
• STAND BY MODE
• ALARM
MODE
OFF MODE
The product is “disabled” and does not produce heat. The product may turn on only for the anti-freeze function
(described on this page). You can set the product to the OFF mode by pressing the ON/OFF button on the display.
Also an external contact (crono, phone dialler) may switch the boiler stove to the OFF mode.
Pressing the +/- keys has no effect. Pressing the M key displays the Menus.
The display shows the current time, room temperature and the status in relation to which the product is OFF.
The product can be in the OFF mode in these cases:
• due to manual operation of the user (with probe)
• due to manual operation of the user (with thermostat)
• due to crono
• due to Black Out
ANTI-FREEZE (selectable from the Menu
only by the Technical Assistance Centre
during commissioning)
Can only be activated from OFF and STAND-BY
modes.
The function preserves only the heating circuit, not the
domestic hot water circuit.
The anti-freeze has two levels:
• level 1: pump on
• level 2: pump and boiler stove on; it is activated
by the anti-freeze mode “level 1” if the probe
temperature reads a temperature which is below
the Anti-freeze Setpoint.
The activation of the anti-freeze (both level 1 and level
2) is indicated by the symbol “frost” on the display.
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