Ahs1, Ahs2 - For Additional Heat Source Control (Gas Boiler); Evu-Sg - Photovoltaic Input And Smart Grid - Ferroli OMNIA S 3.2 Manuel D'installation, D'utilisation Et D'entretien

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 - Photovoltaic input and smart grid

The unit has smart grid function, there are two ports on PCB to connect SG signal
and EVU signal as following.
CN5 CN28
CN21
CN29
CN25
CN42
CN40
DIS1
CN41
S3 S4
CN22
CN1
CN2
1 2 3 4 5 6 7 8 9
13 14 15 16 17 18 19 20 21
CN11
27 28
1 2 3 4 5
2122 23 24
6 7 8 9 10
CN7 CN30
8
fig. 35 -
CN24
CN8
CN6
CN16
CN13
CN15
CN18
S1 S2
CN31
CN4
CN35
CN36
CN17
1 0 1 1 1 2 25 26 27 28
5
2 2 2 3 2 4 2 9 3 0 31 32
10
6 7 8 9
CN7 CN30
fig. 36 -
Cod. 3541V941 - Rev. 00 - 09/2021
Photovoltaic input and smart grid operation:
1. When EVU input is closed, the unit operates as below:
DHW mode turn on, the DHW setting temperature will be changed to 70°C au-
tomatically, and the TBH (electrical heater of DHW boiler) will be activated if : T5
(DHW boiler temperature) <69°C. The unit operates in cooling/heating mode as
the normal logic.
2. When EVU input is open and SG input is closed, the unit operates normally.
3. When EVU input is open and SG input is open, the DHW mode is off, the TBH is
off, the disinfect function is off. The max running time for cooling/heating is "Smart
Grid Run Time Set", then unit will be off.
The parameter "Smart Grid Run Time Set" is settable by user menù (refer to "8.5
User menu" a pagina 109.
EVU INPUT SG INPUT
closed
closed
open
open
Operation
open photovoltaic operation
closed photovoltaic operation
closed normal operation
open smart grid operation
EN
105