1. Introduction MCHE use brazed aluminum construction and is based on the unique micro channel technology, which consists of three components: a flat micro channel tube, fins and two refrigerant manifolds joined together in a single coil. The design provides greater efficiency than traditional mechanical tube and fin heat exchanger designs. 2. Benefitsa. Little galvanic corrosion (100% aluminum) b. Refrigerant charge reduction - up to 70% c. Long life alloy can withstand aggressive environments d. Helps manufacturers meet high SEER (Seasonal Efficency Ratio) and HSPF (Heating Seasonal Performance Factor) requirements. e. MCHE is more than 30% higher heat transfer efficency f. Up to 30% lower airside dP g. MCHE is lighter in weight, smaller in volume: up to 50%;100% Aluminum, easy to cycle h. Minimum performance decrease (100% brazed) i. Special design for good refrigerant distribution j. Special fin design for good water drainage http://www.chinasanpu.com