Carrier 50YER036 Installation, Operation And Maintenance Instructions

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Carrier 50YER036 Installation, Operation And Maintenance Instructions Manual pdf 13 page image

Water Quality StandardsWater QualityParameterHXMaterialClosedRecirculating Open Loop and Recirculating WellScaling Potential - Primary MeasurementpH/Calcium Hardness All - pH < 7.5 and Ca Hardness <100ppmMethodIndex Limits for Probable Scaling Situations - (Operation outside these limits is not recommended)Ryznar All - 6.0 - 7.5Stability Index If >7.5 minimize steel pipe use.Langelier All - -0.5 to +0.5Saturation Index If <-0.5 minimize steel pipe use. Based upon 150∞F [66∞C] HWG andDirect well, 85∞F [29∞C] Indirect Well HXIron FoulingIron Fe 2+ (Ferrous) All - <0.2 ppm (Ferrous)(Bacterial Iron potential) If Fe 2+ (ferrous)>0.2 ppm with pH 6 - 8, O2<5 ppm check for iron bacteriaIron Fouling All - <0.5 ppm of OxygenAbove this level deposition will occur.Corrosion PreventionpH All6 - 8.5 6 - 8.5Monitor/treat asneeded Minimize steel pipe below 7 and no open tanks with pH <8Hydrogen Sulfide (H 2 S) All- <0.5 ppmAt H2S>0.2 ppm, avoid use of copper and copper nickel piping or HX's.Rotten egg smell appears at 0.5 ppm level.Copper alloy (bronze or brass) cast components are OK to <0.5 ppm.Ammonia ion as hydroxide, chloride,nitrate and sulfate compounds All - <0.5 ppmMaximumMaximum Allowable at maximum water temperature.Chloride Levels50°F (10°C) 75°F (24°C) 100°F (38°C)Copper - <20ppm NR NRCuproNickel - <150 ppm NR NR304 SS - <400 ppm <250 ppm <150 ppm316 SS - <1000 ppm <550 ppm < 375 ppmTitanium - >1000 ppm >550 ppm >375 ppmErosion and CloggingParticulate Size andErosionAll<10 ppm of particlesand a maximumvelocity of 6 fps [1.8 m/s].Filtered for maximum800 micron [800mm,20 mesh] size.<10 ppm (<1 ppm "sandfree" for reinjection) of particles and a maximumvelocity of 6 fps [1.8 m/s]. Filtered for maximum 800 micron [800mm,20 mesh] size. Any particulate that is not removed can potentiallyclog components.Notes: Rev.: 6/2/2010• NR - Application not recommended.• "-" No design Maximum.• Closed Recirculating system is identified by a closed pressurized piping system.• Recirculating open wells should observe the open recirculating design considerations.Above the given limits, scaling is likely to occur. Scaling indexes should be calculated using the limits belowScaling indexes should be calculated at 150∞F [66∞C] for direct use and HWG applications, and at 90∞F [32∞C] for indirect HX use.A monitoring plan should be implemented.Table 3: Water Quality Standards13W a t e r- t o - W a t e r ( 5 0 Y E R ) S e r i e s - P u r o n ®R e v. : 1 J u l y, 2 0 1 0