A: Two pipe; Control Fan Coil Unit and Two Wired Motorized Valve
M: Two pipe; Control Fan Coil Unit and 0-10V Motorized Valve
E: Four pipe; Control Fan Coil Unit and Two Wired Heat Valve and Two Wired Cool Valve
N: Modbus RTU communication
K: Keycard
T: Clock
W2: Window
P: Programmable
E: External Sensor
For Example: BAC-003ALW