Connect 12V Wired Controllers to Vertex Ducted Central Split (DYC-18) SystemsUpdated 13 days ago

Introduction

This article explains how to connect a 12V wired controller to Vertex Ducted Central Split (DYC-18) systems. 

Steps

1. Set the dial switch of the indoor and outdoor units to RS-485 communication mode. 

Turn the SW1-1 dial switches on the indoor unit main board and outdoor unit display board to the "On" position. 

SW1-1		RS-485 Communication Mode
		24V Control (Factory Default)

Indoor Unit

Outdoor Unit

2. Connect the RS-485 communication wire. 

Connect the communication wire to the indoor and outdoor units, P-P, Q-Q, E-E one by one. Use 2-core shielded wires, with the shielding layer of the cable connected to E. 

Note: The wired controller communication cable is provided by the factory. The P, Q, E communication cables for the indoor and outdoor units need to be purchased separately. 

3. Connect the 12V wire controller.