* For Daikin non-VRV equipment, DC voltage supply by CoolMasterNet might be required for proper operation.
HVAC Communication Terminals HVAC Indoor connection * Polarity is not required on the HVAC communication line. ** Centralized (group) address required.
Measure DC voltage on HVAC comm. Line 1
If no 14-16V DC voltage, change the dip switches as shown below:
Turn ON the power for CoolMasterNet and connect it to HVAC line.
Connect to the communication terminals on the HVAC equipment and secure the cables in L1 line plug.