This SPH Series indoor main PCB board is designed for 18000 BTU mini split systems operating at 220V. It serves as the central control unit for the evaporator, managing temperature regulation, fan speed, and communication with the outdoor unit. Compatible with Ramsond, Celiera, Amvent, and TCL models—specifically the 55GW2 series—this board ensures reliable performance and precise system control.

Key Features:

• Voltage: 220V

• BTU: 18000

• Application: Evaporator (Indoor Unit)

• Compatibility: Ramsond, Celiera, Amvent, TCL (Model 55GW2)

• Part Type: Main PCB Board

• OEM-grade replacement for OE Series systems