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cooling the plant water
If the domestic hot water function is active, this function
has priority even when the contact is open.
The terminals are supplied jumpered (contact closed).
Remove the jumper to connect the CT consent and the
P16: FTV photovoltaic input management for Smart
Grid
Setting parameter P16=FTV and connecting a consent from
a photovoltaic system control unit results in an increase of
the DHW setpoint from SSP to 55 °C in order to 'store' en-
ergy in the DHW tank.
The consent must be closed for no less than 10 consecu-
tive minutes before the FTV function is activated.
When the input is opened, the DHW setpoint is reset to the
standard SSP value.
Probe terminals (XP2)
PT4: connection of domestic hot water storage tank
temperature probe PT4.
PT1: connection of plant temperature probe PT1.
The probes are supplied connected to the terminal
board of the unit. Position the probe used in a suitable
sump on the relevant tank (max. distance 50 m).
PT8: External air temperature detection sensor input.
The sensor should be positioned so that it detects
the real outside air temperature and must not be
-
ing (e.g. direct sunlight, oth-er heat sources, accu-
mulations of snow/ice).
The probe is supplied connected to the terminal block
of the unit. Position the probe outside the unit (max.
distance 50 m).
Output terminals (XP1)
PP3: PP3 secondary pump connection (by installer).
PV1: PV1 plant/domestic hot water diverter valve con-
nection.
To connect the 3-way valve accessory, you must cut the
connector and connect the cables separately.
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