28 Operating and installation instructions 0020288151_04
4.3 System with FM5 and FM3 functional modules
VRC 720f
eBUS
VR 92f
FM5 (VR 71)
FM3 (VR 70)
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 (→ Section 4.5) functional module.
Configura-
tion
System property Mixed heat-
ing circuits
1 Solar heating and/or domestic hot water support with two solar cylinders Max. 2
2 Solar heating and/or domestic hot water support with one solar cylinder Max. 3
3 3 x mixed heating circuits Max. 3
6 allSTOR multi-functional buffer cylinder and domestic hot water station Max. 3
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 (→ Section 4.6) functional
module.
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