Carrier AQUAZONE 50RHC006-060 Series Product Data

Contents

37WATER QUALITY GUIDELINESLEGEND*Heat exchanger materials considered are copper, cupronickel, 304 SS(stainless steel), 316 SS, titanium.†Closed recirculating system is identified by a closed pressurized pip-ing system.**If the concentration of these corrosives exceeds the maximum allow-able level, then the potential for serious corrosion problems exists.Sulfides in the water quickly oxidize when exposed to air, requiringthat no agitation occur as the sample is taken. Unless tested immedi-ately at the site, the sample will require stabilization with a few dropsof one Molar zinc acetate solution, allowing accurate sulfide determi-nation up to 24 hours after sampling. A low pH and high alkalinity cancause system problems, even when both values are within rangesshown. The term pH refers to the acidity, basicity, or neutrality of thewater supply. Below 7.0, the water is considered to be acidic. Above7.0, water is considered to be basic. Neutral water contains a pH of7.0.To convert ppm to grains per gallon, divide by 17. Hardness in mg/l isequivalent to ppm.CONDITION HX MATERIAL* CLOSED RECIRCULATING†Scaling Potential — Primary MeasurementAbove the given limits, scaling is likely to occur. Scaling indexes should be calculated using the limits below.pH/CalciumHardness Method All N/AIndex Limits for Probable Scaling Situations (Operation outside these limits is not recommended.)Scaling indexes should be calculated at 150 F for direct use and HWG applications, and at 90 F for indirect HX use. A monitoring plan should beimplemented.Ryznar Stability Index All N/ALangelier Saturation Index All N/AIron FoulingIron Fe 2+ (Ferrous)(Bacterial Iron Potential) All N/AIron Fouling All N/ACorrosion Prevention**pH All 6 - 8.5Monitor/treat as needed.Hydrogen Sulfide (H2 S) All N/AAmmonia Ion as Hydroxide,Chloride, Nitrate and SulfateCompoundsAll N/AMaximum Chloride LevelsCopper N/ACuproNickel N/A304 SS N/A316 SS N/ATitanium N/AErosion and CloggingParticulate Size and ErosionAll<10 ppm of particles and amaximum velocity of 6 fps.Filtered for maximum 800 micron size.Brackish All N/AHWG — Hot Water GeneratorHX — Heat ExchangerN/A — Design Limits Not Applicable Considering RecirculatingPotable WaterSS — Stainless Steel