P_S - Water Pump Of The Solar Circuit; Evu-Sg Digital Inputs For Photovoltaic Input And Smart Grid From Mains Electricity; Additional Temperature Probes - Ferroli OMNIA S HYBRID H 3.2 Installation, Use & Maintenance Manual

OMNIA S HYBRID H 3.2

P_s - Water pump of the solar circuit

21
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Power supply
A1
A2
Pumpsolar
EVU-SG Digital inputs for photovoltaic input and smart grid from mains
electricity
If the digital inputs for photovoltaic input and smart grid from mains electricity are
enabled by parameter 15.2 (see "9.3.2 Heat pump service menu" on page 60)
and are active. They take priority over the user interface settings.
Digital inputs not enabled (default)
Set par. 15.2 = 0
Digital inputs enabled
Set par. 15.2 = 1
EVU SG
(photovoltaic input) (smart grid input)
Closed Open
Closed Closed
Open Closed
Open Open
• Photovoltaic operation
The DHW heater setpoint is set to 70°C to accumulate the electrical energy pro-
duced by the photovoltaic panels.
To meet this DHW request tat 70°C, the heat pump and DHW (TBH) electrical
water heater are used while the boiler stays switched off.
If the heat pump is working for the system, continue to do so and only the DHW
electric boiler heater (TBH) is used.to meet the DHW request. If the heat pump is
not working for the system, it is activated together with the electric DHW heater
(TBH) to meet the DHW request.
• Normal operation
In this case, the system works normally according to the set parameters
• Smart grid operation
This operation is usually dependent of a smart grid request by the mains electricity
which basically informs the system that the deliverable electric power is decreas-
ing (for example, in the case of electricity production systems through wind or
photovoltaic farms).
The heat pump can support the system in cooling or heating mode for a specific
time (which can be set via a parameter), then it will be deactivated. Once this set
heating time has expired, only the boiler is activated. The heating of the DHW
water heater is, on the other hand, guaranteed by the activation of the boiler alone.
NOTE
If you only want to use photovoltaic input, jumper SG
If you only want to use smart grid input, jumper EVU
25 26 27 28
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1 2 3 4 5
29 30 31 32
6 7 8 9 10
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fig. 41 -
Operating status
Photovoltaic operation
Photovoltaic operation
Normal operation
Smart grid operation
Cod. 3542B230 - Rev. 00 - 02/2022
CN5 CN28
CN21
CN29
CN25
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DIS1
CN41
S3
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CN1
CN2
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13 14 15 16 17 18 19 20
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Additional temperature probes

To control the additional system temperature probes, additional temperature
probes may be necessary (available as an accessory).
The probes are connected to the heat pump hydronic board (see "7.9.4 Heat pump
hydronic board" on page 44).
Refer to the instructions supplied with the accessory for the installation.
For the setting parameters, see "9.3.2 Heat pump service menu" on page 60.
Tbt1 probe (system water tank temperature probe)
Set par.15.4=1
Tw2 probe (mixed water temperature probe sent to zone 2)
Set par.15.3=1
Tsolar probe (thermal solar panel temperature probe)
Set par.15.7=1
CN24
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CN6
CN16
CN13
CN15
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S1 S2
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S4
CN4
CN35
CN36
CN17
1 0 1 1 1 2 25 26 27 28
5
21 2 2 2 3 2 4 2 9 3 0 31 32
10
6 7 8 9
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fig. 42 -
EN
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