The Turbo-2000 air dryer uses four pounds of desiccant and a separate 460 cu.in. air tank to deliver exceptional air drying and desiccant cleaning power.

Air enters from the compressor (A) into the center of the unit (red arrow) It passes through the first filter (B) where oil and dirt particles are removed The air then passes up along the steel shell of the canister (C), cooling and losing moisture The cloth cover surrounding the desiccant (D) acts as a filter to trap moisture and oil Next the air passes through the desiccant (E) where all remaining moisture is removed The clean dry air then passes through the open valves into the purge tank (F) and Number One or wet tank (G) The turbo boost control valve (H) is open.

During the compressor-off cycle, the unloader valve (A) is opened by the governor and a controlled flow of clean air flows backwards through the system and exits downward (orange arrow).

The purge tank valve (B) directs the clean purge air through the desiccant to clean it The valve to the wet tank (C) is closed The turbo valve (D) is also closed to maintain turbo boost pressure .