... accurately3) Compact structure and good demountabality4) Titanium coil exchanger with full resistance against corrosion ensures a working life of ... 15 years5) HIgh efficiency compressor with R410A refrigerant6) Flow switch for water flow protection7) Intelligent ... 2011, AHRI, ISO9001, Six Sigma, Lean Production and Management MACON swimming pool heater(CE, CB, EC, ETL, CETL, C-TICK, ...