Service Accessibility: Includes an integrated 1/4" access port for efficient manifold gauge connection during diagnostics

preventing condensate leaks and ensuring peak furnace performance

including unit ventilators

the 02-1554 is factory-set for natural gas at 3

Gree 30032021 Control Board R-407A Service Accessibility: Includes an integratedThe Gree 30032021 Main Control Board is a critical OEM replacement part designed for high performance HVAC system regulation. As a Gree mini split PCB, this integrated circuit coordinates the G10 inverter technology, managing variable compressor speeds and fan multi speed settings to maintain precise indoor air quality and thermal stability. This board is engineered to meet 208 230V specifications for ductless heat pump units, specifically supporting