User Connections; Hydronic Board - Ferroli OMNIA ST 3.2 Manuel D'installation, D'utilisation Et D'entretien

7.6.3 User connections

All the connections have to be done on the terminals of the hydronic board placed in the electric box.

Hydronic board

1 2
SL1 SL2
13 14
TBH IBH1
Order Port Code
1 CN21 POWER
2 S3 /
3 DIS1 /
4 CN5 GND
5 CN28 PUMP
6 CN25 DEBUG
7 S1, S2, S4 /
8 CN4 USB
9 CN8 FS
T2 *
T2B *
10 CN6 TW_in *
TW_out *
T1 *
11 CN24 Tbt1
12 CN16 Tbt2
13 CN13 T5
14 CN15 Tw2
15 CN18 Tsolar **
16 CN17 PUMP_BP
HT
17 CN31 COM
CL
SG
18 CN35
EVU
M1 M2
19 CN36
T1 T2
20 CN19 P Q
21 CN14 A B X Y E
100
EN
8
3 4 5 6 7 9
H C
P_c P_o P_s P_d
1ON 2ON 2OFF
1OFF
16
15 17 18 19 20 21
L1 N
N N 3ON
3OFF
CN11
Power supply to hydronic board
Rotary dip switch
Digital display
Ground to hydronic board
Power supply to internal water pump Pi
Port for IC programming
Dip switch
Port for USB programming
Connection to internal water flow switch
Port for temperature probe of refrigerant liquid side temperature of indoor unit (heating mode)
Port for temperature probe of refrigerant gas side temperature of indoor unit (heating mode)
Port for temperature probe of inlet water temperature of plate heat exchanger
Port for temperature probe of outlet water temperature of plate heat exchanger
Port for temperature probe of final outlet water temperature of indoor unit
Port for temp. sensor probe in the plant tank
Reserved
Port for temp. sensor probe in the DHW boiler
Port for outlet water for zone 2 temp. probe probe
Port for solar panel temp. sensor
PWM signal to internal water pump Pi
Control port for room thermostat (heating mode)
Power port for room thermostat
Control port for room thermostat (cooling mode)
Port for smart grid (grid signal)
Port for smart grid (photovoltaic signal)
Reserved
Reserved
Reserved
Port for communication with the display panel
Cod. 3541V991 - Rev. 01 - 10/2021
10 11 12
25 26 27
AHS1
R2
HT
22 2 3 2 4
29
30 31
N N N N
R1 DFT2
N
CN7
fig. 21 - Hydronic board
Assembly unit
OMNIA ST 3.2
28
1 2 3 4 5
AHS2
A B X Y E
32
6 7 8 9 10
DFT1
P Q E H1 H2
CN30
Note
B
/
/
B
B
/
/
/
/
B
B
B
B
B
A
/
B
A
A
B
1
1
1
1
1
/
/
/
B