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Operation with external probe
(optional)
In the case of a system with an external probe, the boiler flow temperature for central heating is managed by the external probe depending
on the external temperature measured (Par. 1.11). The flow temperature can be modified by selecting the functioning curve via the but-
tons (7-8) (or on the CAR
control panel, if connected to the boiler) selecting a value from 0.0 to 9.0
V2
With external probe present, the relative symbol
will appear on the display.
OFF mode
Press the button (1); from this moment the boiler remains inactive and the display shows the symbol (
flashing). Antifreeze and an-
ti-jamming function is guaranteed according to the set stand-by level.
Any remote controls cannot bring the boiler out of this state.
Stand-by mode (Only available with Remote Control connected).
The boiler can ONLY be put into stand-by mode by a remote control: in this case the symbol (
) appears steady on the display.
In "Stand-by" and "OFF" mode, the appliance is to be considered still live.
Display lighting
The display lights up while the control panel is being used; after a set inactivity period, the brightness decreases. The lighting mode can be
varied via parameter "t8" in the P.C.B. programming menu.
Keypad lock
Pressing the buttons (
, MODE ) simultaneously for more than 5 seconds locks the keyboard and the display shows (
). From this
moment on, the keys have no function. Any interaction causes symbol 19 (
) to flash. To unlock the keyboard, press the two buttons (
, MODE ) simultaneously until symbol 19 (
) goes out.
DHW recirculation function (optional)
When the function is active, the word 'BOOST' appears on the display.
The function allows the domestic hot water recirculation ring to be kept at the temperature, if the system has been set up, so as to allow
rapid availability of domestic hot water when a withdrawal is made. To activate and configure the optional kit necessary for this function,
contact an Authorised After-sales Centre.
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