LG PQNFB16A1 - Manual (Page 7)

Overall system diagram
Installation Manual 7
ENGLISH
Overall system diagram
Simple central
controller
Ventilation A/C
485 communication
* Can be connected to 64 indoor units (Ventilation+Air conditioner)
* PNF-B16A1 (Lon Gateway) can be used in connection with the simple central
controller.