System Wiring Drawing
3. Simple central controller installation case 3
1. Set of three simple central controller are clubbed together in cascade for common power sharing
line form the same outdoor.
2. Communication line can be commonly shared among all controllers (dotted lines).
3. Maximum of 16 controller can be clubbed in cascade system i.e. maximum 256 indoor units can be
4. One PI 485 can supply power to maximum 3 controllers only.
10 Simple Central Controller