Noritz NC380-SV-ASME Owner's Manual

Also see for NC380-SV-ASME: Instruction manual Service manual Installation manual Installation manual

Contents

23The hot water is turbid. • This is harmless. Small bubbles appear as the air in thewater is heated and depressurized rapidly toatmospheric pressure.The water appears blueThe bath tub/wash-basin has turnedblue• Coloration to a blue color may be noticed from smalltraces of copper ion contained in the water and fat(furring). However, there are not problems concerninghealth. Coloration of the bath tub/wash-basin can beprevented by cleaning frequently.(Continued)Water leaks from the drain plugson the outlet.• When the unit is under very high pressure, water will leakfrom the drain plugs as a safety so that the unit is notdamaged by the high pressure.åÃè·ï\é¶Ç Ç®í≤Ç◊Ç≠ÇæÇ≥Ç¢åÃè·ï\é¶Ç Ç®í≤Ç◊Ç≠ÇæÇ≥Ç¢ Water QualityDamage to the water heater as a resultof poor water quality is not covered bythe Limited Warranty. To ensure fullwarranty coverage, treat or conditionwater that exceeds the target levelsprovided in this table.Source: EPA National Secondary Drinking WaterRegulations (40 CFR Part 143.3)Total Hardness* : 200 mg/L (12 gpg) or lessAluminum : 0.05 to 0.2 mg/L or lessChloride : 250 mg/L or lessCopper : 1 mg/L or lessIron : 0.3 mg/L or lessManganese : 0.05mg/L or lesspH : 6.5 - 8.5Total Dissolved Solids : 500 mg/L or lessZinc : 5 mg/L or lessSulfate ion : 250 mg/L or lessResidual chlorine : 4 mg/L or less* Maximum limit suggested by Noritz.