The VAV Compact Controller is supplied with a prewired connecting and communication cables assembly.
Internal diagram
Tool = Configuration and maintenance interface |
Power supply and bus cable (color coded and labeled)
Core designation | Core color | Terminal code | Description |
---|---|---|---|
Cable 1: Power / black sheathing | |||
1 | red (RD) | G | System voltage AC 24 V |
2 | black (BK) | G0 | System neutral AC 24 V |
Cable 2: Communication / blue sheathing | |||
6 | violet (VT) | REF | Reference |
8 | grey (GY) | + | Bus (BACnet MS/TP) |
9 | pink (PK) | - | Bus (BACnet MS/TP) |
Note
Terminal layout may differ for each device. Devices with twin-terminals or internally connected terminals may be encountered as well as bus connection in junction boxes.
The operating voltage at terminals G and G0 must comply with the requirements under SELV or PELV.
Safety transformers with twofold insulation as per EN 61558 required; they must be designed to be on 100 % of the time.