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Terminal
terminal 5
DHW terminal
TA terminal
terminal 8
terminal 9
Relationship between mode of operation and the main contact inputs:
Terminal 1
Open
Open
Open
Open
Closed
Closed
6.3 - ENERGY ACCUMULATION FUNCTIONS (PHOTOVOLTAIC AND SMART GRID)
The internal unit UI is equipped with two inputs to increase the accumulation of energy.
Parameter "ADDR341"
0 = disabled
6.3.1 - Photovoltaic function
ADDR341 = 1
When one or both of the (EVU and SG) inputs are closed, it is possible to automatically force the accumulation
of energy by requesting the internal unit to heat more (if in heating mode or in domestic water production)
or to cool more (if in cooling mode)
Parameter "ADDR347" cooling water delta
Parameter "ADDR348" heating water delta
Parameter "ADDR349" domestic water delta
6.3.2 - Smart Grid function
ADDR341 = 2
It is possible to use the Smart Grid function through the parameter "ADDR341"; this function
divides into 4 modes selectable through the opening and/or closure of the 2 contacts.
The different modes are explained below:
Input EVU
OFF
OFF
ON
ON
Description
COMMON CONNECTED TO N
DHW input can be connected to a free contact for enabling of domestic hot water
production. If ADDR228=1, the production of domestic hot water is disabled with
contact open, enabled with contact closed.
TA input can be connected to a free contact of a chronothermostat or to the contacts
in parallel chiller/boiler of the electronic controls of the fan coils BI2 and BI2+. When
the contact is closed, all cooling, heating and domestic water production functions are
enabled. When the contact is open, only domestic water production remains active.
Input from SMART GRID or photovoltaic FTV1
Input from SMART GRID or photovoltaic FTV2
Terminal 2
TA terminal
Open
Open
Closed
Closed
Open
Open
1 = enabled
Input SG
OFF
ON
OFF
ON
Description
Open
Standby
Closed
Standby
Open
run and domestic only
Closed
run and heating and domestic
Open
run and domestic only
Closed
run and cooling and domestic
2 = Smart Grid abilitato
Normal operation
Forced operation
Mode
Mode 1
Mode 2
EN - 41
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