A complete installation with BVA devices requires the following elements:
- 1 Device per cabin: BVA 12 relays
- 1 Device per floor (compatible with 1 or 2 buttons): BVA 2 relays
In the following example the installation consists of 1 cabin and 3 floors, so the following elements are required:
- 1x BVA 12 relays
- 3x BVA 2 relays
Hereinafter, the procedure to optimally install BVA devices is described.