CloudBox - HVAC Hitachi VRF Yoram Dagan January 09, 2022 21:47 Updated HVAC Communication TerminalsHVAC outdoor connection * Polarity is not required on the HVAC communication line. Connecting to the line plugSecure the cables in the L1 line plug. Plugging to the CloudBox Insert the plug in to the CloudBox L1 socket. Check DIP Switches are set correctlyDip switches setup for VRF HVAC system on L1. Related articles CloudBox - HVAC LG VRF CloudBox - Mitsubishi Electric VRF Comments 0 comments Please sign in to leave a comment.