Ahs1, Ahs2 - For Additional Heat Source Control (Gas Boiler); Evu-Sg Digital Inputs For Photovoltaic Input And Smart Grid From Mains Electricity; Additional Temperature Probes - Ferroli OMNIA S 3.2 Installations- Und Bedienungsanleitung

OMNIA S 3.2

AHS1, AHS2 - For additional heat source control (GAS BOILER)

1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 1617 18 9 1 0 2
CN11
FUSE
L
Power supply
7 5 3 1
A1
KM6
A2
N
2 4 6
Additional heat source
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 "9.1.1 Access to Service menu (For Serviceman)"
on page 116) 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.
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 is not longer available to heat the DHW heater and can work for
the system in cooling or heating mode for a specific time (set via a parameter),
so is disabled.
27 28
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2122 23 24
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CN7 CN30
8
fig. 36 -
Operating status
Photovoltaic operation
Photovoltaic operation
Normal operation
Smart grid operation
Cod. 3541V941 - Rev. 04 - 05/2022
NOTE
If you only want to use photovoltaic input, jumper SG
If you only want to use smart grid input, jumper EVU
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CN29
CN25
CN42
CN40
DIS1
CN41
S3
CN22
CN1
CN2
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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 "7.7.5 Hydronic
board" on page 100).
Refer to the instructions supplied with the accessory for the installation.
For the setting parameters, see "9.1.1 Access to Service menu (For Serviceman)"
on page 116.
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
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CN16
CN13
CN15
CN18
S1 S2
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S4
CN4
CN35
CN36
CN17
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5
21 2 2 2 3 2 4 2 9 3 0 31 32
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fig. 37 -
EN
105