75
INS
TALL
AT
O
RE
U
TENTE
MANU
TENT
O
RE
65
Funzionamento unità esterna
La logica del sistema calcola in funzione
della temperatura esterna un tempo di
attivazione trascorso il quale
parte anche l’unità interna
Set Risc
55 °C
Max
Min
Temp
esterna
25
Temp di integrazione
-15
Funzionamento
esclusivo
dell’unità interna
Operation in central heating mode
3.23 LOGIC OF OPERATION.
-
Central heating mode.
Following a request during the room
heating mode, the electronics decide, according to the external
temperature, whether to activate the outdoor unit, or (with cold
temperatures) the indoor unit (Fig. 65):
The management electronics select which heat source to be used
according to the combination of the parameters set in the inte-
gration menu of the control panel. The indoor unit may activate
when the external conditions are favourable to the operation of
the outdoor unit; this may happen after a time proportional to
the “central heating integration standby time” parameter.
Alternatively, you can also set a fixed switching outdoor tem-
perature (manual mode in the parameter "integration mode"
setting the temperature with "manual activation temperature").
The DHW request is prioritised compared to a room heating
request.
Exclusive
operation
of the indoor
unit
Set San (DHW set)
Outdoor unit operation
The system logic calculates
an elapsed activation time which also
starts the indoor unit according to the
external temperature
Temp.
unit
Integration temp.
