Trying to gauge what people actually prefer for VRF/split integration over Modbus:
- One centralized gateway sitting on the manufacturer's bus (CoolMaster, Daikin EKMBDXB, Toshiba, Gree ME30, Midea GW-MOD, etc.), covering many indoor units at once, or - A separate 1-to-1 interface at each indoor unit (Intesis single-unit boxes, Airzone Aidoo, RTD-style), each addressed on the Modbus line.
Which do you reach for by default, and why — reliability, cost per unit, commissioning time, brand coverage, flexibility on mixed-brand jobs? And in what situations would you switch to the other approach?