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

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

System with FM5 and FM3 functional modules

VRC 720
eBUS
Systems with more than two 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 4 x VR 92 remote controls, which can be installed in each heating circuit
–
Maximum 9 x heating circuits, which you achieve using 1 x FM5 functional module and 3 x 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 21) 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 22) functional module.
20
FM5 (VR 71) FM3 (VR 70)
VR 92
Operating and installation instructions sensoCOMFORT 0020287900_00
Mixed heat-
ing circuits
Max. 2
Max. 3
Max. 3
Max. 3