The following interface has now been superseded by the C325L2 interface. The information provided below is for existing systems that are still in the field and may require maintenance or repairs
LG Compatibility: LG condensing unit must be supplied with an optional PI485 Gateway (M) board in the condensing unit
B##AWYN7G5
Current Firmware Version - 1.2
Can use RA, Zones, Master or RF as controlling sensor
Polarity is critical see below, for correct connection
Connect a shielded, 2 core, twisted pair control cable from the C225 / C325L to the PI485 Gateway (M) board in the condensing unit. This cable is supplied by the installer
Dip switches 1 and 4 = ON
All others are = OFF
1️⃣ LG PI485 Gateway (M) board in condensing unit: This board is supplied by LG. It is an optional extra and must be ordered with the AC unit
2️⃣ B wire: Connect to this terminal in on the PI485 PCB in the condensing unit
3️⃣ A wire: Connect to this terminal in on the PI485 PCB in the condensing unit
4️⃣ Shielded, 2 core, twisted pair control cable: Polarity is critical.