System With Fm5 And Fm3 Functional Modules; Potential Application For The Functional Modules - Vaillant sensoCOMFORT VRC 720f Manual De Uso

4 -- Using the functional modules, basic system diagram, start-up
4.3

System with FM5 and FM3 functional modules

VRC 720f
eBUS
Systems with two or more mixed heating circuits require the FM5 functional module.
The system may comprise the following:
–
Maximum 1 x FM5 functional module
–
Maximum 3 x FM3 functional modules, in addition to the FM5 functional module
–
Maximum 2 x remote controls, which can be installed in each heating circuit
–
Maximum 9 x heating circuits, which you achieve using one FM5 functional module and three FM3 functional modules
4.4

Potential application for the functional modules

4.4.1 FM5 functional module
Each configuration corresponds to a defined connection assignment of the FM5 (→ Page 79) functional module.
Configura- System property
tion
1 Solar heating and/or domestic hot water support with two solar cylinders
2 Solar heating and/or domestic hot water support with one solar cylinder
3 3 x mixed heating circuits
6 allSTOR multi-functional buffer cylinder and domestic hot water station
4.4.2 FM3 functional module
If a FM3 functional module is installed, the system has one mixed and one non-mixed heating circuit.
The potential configuration (FM3) corresponds to a defined terminal assignment for the FM3 (→ Page 80) functional module.
78
FM5 (VR 71) FM3 (VR 70)
VR 92f
Operating and installation instructions sensoCOMFORT 0020288151_00
Mixed heat-
ing circuits
Max. 2
Max. 3
Max. 3
Max. 3