Sensor Assignment; Terminal Assignment For The Fm3 Functional Module - Vaillant sensoCOMFORT VRC 720 Manual De Uso E Instalación

4
-- Using the functional modules, basic system diagram, start-up
Configur- S1 S2
ation
3 SysFlow FS1
6 SysFlow FS1
Meaning of the abbreviations (→ Page 26)
4.5.1

Sensor assignment

Configura- S1 S2
tion
1 VR 10 VR 10
2 VR 10 VR 10
3 VR 10 VR 10
6 VR 10 VR 10
4.6

Terminal assignment for the FM3 functional module

230V
N L
7
1 Input sensor terminals
2 Signal terminal
3 Address switch
4 eBUS terminal
S2, S3 sensor terminals: An external control can also be connected
R3/4, R5/6 mixer output: 1 = open, 2 = closed
You can configure the contacts for external inputs in the system control.
–
Open, deactiv.: Contacts open, no heat demand
–
Bridge, deactiv.: Contacts closed, no heat demand
Configuration R1
FM3+FM5 3fa
FM3 3f1
Meaning of the abbreviations (→ Page 26)
22
S3 S4 S5
FS2 FS3 BufBt
FS2 FS3 BufBt
S3 S4 S5
VR 10 VR 10 VR 10
VR 10 VR 10 VR 10
VR 10 VR 10 VR 10
VR 10 VR 10 VR 10
1
1 2 1 2 1 2 1
1 2 1 2
S1 S2 S3 S4 S5 S6
R1 R2
N L N L
6
R2 R3/R4 R5/R6
3fb 9kaop/ 9kbop/
9kacl 9kbcl
3f2 MA 9k2op/
9k2cl
S6 S7 S8
DEM1 DEM2 DEM3
BufBtCH BufTop BufBt
DHW DHW
S6 S7 S8 S9
–
VR 10 VR 11 VR 10
–
VR 10 VR 11 VR 10
– – –
VR 10
–
VR 10 VR 10 VR 10
2 3
2
O I
S7
R3/4 R5/6
N 1 2 N 1 2
5
5 Mixer output
6 Output relay terminals
7 Power supply
S1 S2 S3
–
DEMa DEMb
BufBt/ DEM1 DEM2
DHW
Operating and installation instructions sensoCOMFORT 0020287900_00
S9 S10 S11 S12
– – –
DHW
–
DEM1 DEM2 DEM3
S10 S11 S12
–
VR 10 VR 10
–
VR 10 VR 10
– –
VR 10
– –
VR 10
4
- +
BUS
R3/4
R5/6
N 1 2 N 1 2
S4 S5 S6
–
FSa FSb
–
SysFlow FS2
S13
–
–
S13
–
–
–
–
S7
–
–