or heavy soot buildup

Synthetic Seating Material: Provides a bubble-tight seal to prevent refrigerant migration during the off-cycle

The MB6F1 solenoid includes an integrated manual lift stem

ignition control sequences

Trane EXC2073 Heat Exchanger 30067439-890 or heavy soot buildupThe Trane EXC2073 Heat Exchanger is a critical OEM component designed for high efficiency thermal transfer in industrial and commercial HVAC systems. This unit is the direct EXC1872 replacement, engineered to restore factory standard performance in compatible gas fired furnaces and rooftop units. Constructed from high grade aluminized steel, the EXC2073 is built to withstand rigorous thermal cycling while resisting the corrosive effects of flue gas