11
Temperature display
Press the <temp> key repeatedly to display
the current ambient temperature set point
and the temperature values read by the
three probes of the HIU.
Current ambient temperature set
point (*)
Access to technical menu
Press the <mode> key repeatedly to set the
HIU to OFF status.
Heat interface unit in OFF mode
DHW probe temperature
Heating flow probe temperature Primary return probe temperature
Hold the <set>, <day/night> and <temp>
keys pressed together for 10 seconds.
Access to the technical parameters
Once “TSP” appears on the display, confirm
access by pressing the central knob <R>.
By rotating knob <R> it is possible to scroll
through the various parameters, which can
then be edited, pressing and rotating knob
<R>.
Technical parameter t00
Primary limit/set return temperature in
heating mode (**)
Primary limit/set return temperature in
DHW mode (**)
Comfort function (ON/OFF or according
to weekly program) (see page 13)
(*) if the thermostat function of the remote user interface is enabled.
(**) if these set points cannot be changed you must set parameter t07 to value 0 in the technical menu (see “access to technical menu” below).
Parameter t07= 1 “freezes” the operating set points to prevent inadvertent modifications by the user.
To exit the menu, wait a few seconds or press the <reset> key. Re-enable the required services using the <mode> key.
Refer to the remote control user manual for the hourly programming of space heating and DHW comfort function.
(*) if the thermostat function of the remote user interface is enabled.
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