... exchangers. Glycol flows in the cycle system. At the exhaust air side, glycol in the exchanger absorb the ... , the glycol is tranfered to another exchanger at fresh air side by a special circulating pump. When ... exchangers,one is set at fresh air side,the other is set at exahust air side.The 2 heat ... 4.No cross contamination between the fresh air and exhaust air flows,The recovery exchanger is suit for ...