Raypak E3T Series Installation And Operation Manual
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4Water Chemistry Allowable LevelsWater Temperature 68-104°F (20-40°C)pH 7.6-7.8Total Alkalinity (ppm) 80-120Calcium Hardness (ppm) 200-400Salt (ppm) 4500 MaximumFree Chlorine (ppm)* 2-3Total Dissolved Solids (ppm) 3000 Maximum***Free Chlorine MUST NOT EXCEED 5 ppm!**In saltwater chlorinated pools, the total TDS can be as highas 6000 ppm.Table A. Spa and Pool Water Chemistry2. WATER CHEMISTRYCAUTION: Corrosive water voids all warrantiesFor your health and the protection of your pool equipment,it is essential that your water be chemically balanced.The levels shown in Table A must be used as a guide forbalanced water.Pool/Spa Water ChemistryOccasional chemical shock dosing of the pool or spashould not damage the heat exchanger providing thewater is balanced. Automatic chemical dosing devicesand salt chlorinators are usually more efficient in heatedwater. If not controlled, they can lead to high chemicallevels which can damage the heat exchanger.Further advice should be obtained from your pool or spabuilder, accredited pool shop, or chemical supplier for thecorrect levels for your water.Automatic Chlorinators and ChemicalFeedersAll chemicals must be introduced downstream of theheater and completely diluted into the water before beingcirculated through the heater.Chlorinators must feed downstream of the heat exchangerand have an anti-siphoning device or check valve toprevent chemical back-up into the heat exchanger whenthe pool filtration pump is shut off.CAUTION: High chemical concentrations from feedersthat are out of adjustment will cause rapid corrosion ofthe heat exchanger. Such damage is not covered underthe warranty.CAUTION: Failure of a heat exchanger due to lime scalebuild-up on the heating surface, low pH, or other chemicalimbalance is not covered under the warranty.3. SAFETY INFORMATIONPool water temperatures typically range from 78°F (26°C)to 82°F (28°C). The American Red Cross recommends atemperature of 78°F (26°C) for competitive swimming.However , this may be too cool for young children and theelderly, who may require a temperature of 80°F (27°C) orhigher.4. OVERVIEWCongratulations on the purchase of the most advancedspa/pool heater in the market. To get the best performanceand savings from your new heater, it is important to installthe heater in accordance with our instructions and theelectrical, plumbing codes applicable to your area.If you have any questions, please contact your AuthorizedDealer, or visit our website at www.raypak.com.READ AND FOLLOW ALL INSTRUCTIONS GIVENIN THIS MANUAL.The water in a spa or pool should never exceed 104°F(40°C). A water temperature in excess of 104°F (40°C)is considered unsafe for all persons. Lower watertemperatures are recommended for extended use(exceeding 10-15 minutes) and for young children.Excessive water temperatures have a high potentialfor causing fetal damage during the early months ofpregnancy. Pregnant or possibly pregnant womenshould limit spa or pool water temperatures to 100°F(38°C).Before entering a spa or pool, the user should measurethe water temperature at several locations using anaccurate thermometer since the tolerance of watertemperature - regulating devices may vary as much asmuch as +/- 5°F (3°C)Alcohol, drugs or medication should not be used beforeor during spa or pool use since their use may lead tounconsciousness with the possibility of drowning.Persons suffering from obesity or with a medical historyof heart disease, low or high blood pressure, circulatorysystem problems, or diabetes should consult a physicianbefore using a spa or pool.Persons using medication should consult a physicianbefore using a spa or pool since some medication mayinduce drowsiness while other medication may affectheart rate, blood pressure and circulation.Prolonged immersion in hot water may inducehyperthermia. Hyperthermia occurs when the internaltemperature of the body reaches a level several degreesabove normal body temperature of 98.6°F (37°C).The symptoms include dizziness, fainting, drowsiness,lethargy and an increase in the internal temperatureof the body. The effects of hyperthermia include:Unawareness of impending hazard, failure to perceiveheat, failure to recognize the need to exit spa or pool,physical inability to exit spa or pool, fetal damage inpregnant women and unconsciousness resulting in adanger of drowning. |
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