clicking sounds with no flame

protecting piping from freezing in cold climates

and CHC036GHCA series

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

or heavy soot buildup

Trane EXC2073 Heat Exchanger 30067439-890 clicking sounds with no flameThe 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