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3. Pregnant women take note! Soaking in water above 102°F (38.5°C) can cause fetal damage during the first three months of pregnancy (which could result in the birth of a brain-damaged or deformed child). If pregnant women are going to use a spa or hot tub, they should make sure the water temperature is below 100°F (38°C) maximum. 4. The water temperature should always be checked with an accurate thermometer before entering a spa or hot tub. Temperature controls may vary by as much as 4°F (-16°C). 5. Persons with a medical history of heart disease, diabetes, circulatory or blood pressure problems should consult their physician before using a hot tub or spa. 6. Persons taking any medication which induces Figure 22. Pressure switch copper tubing. Model LLG & LLD Pool and Spa Heater Page 19 drowsiness (e.g., tranquilizers, antihistamines, or anticoagulants) should not use spas or hot tubs. 7. Prolonged immersion in hot water can induce hyperthermia. Hyperthermia occurs when the internal body temperature reaches a level several degrees above the normal body temperature of 98.6°F (37°C). Symptoms include dizziness, fainting, drowsiness, lethargy, and an increase in the internal body temperature. The effects of hyperthermia include: • Lack of awareness of impending hazard • Failure to perceive heat • Failure to recognize need to leave spa • Physical inability to leave spa • Fetal damage in pregnant women • Unconsciousness resulting in a danger of drowning 3G. Swimming Pool Energy Saving Tips Teledyne Laars offers the following recommendations to help conserve fuel and minimize the cost of Table 7. Mineral Concentration Levels Test Recommended Level Free chlorine Bromine pH Total alkalinity (TA) Calcium hardness (CH) Langelier saturation index (LSI) Total dissolved solids (TDS) Cyanuric acid Copper 1.0 to 3.0 ppm 3.0 to 5.0 ppm 7.2 to 7.8 80 to 120 ppm 200 to 400 ppm -0.5 to +0.5 Less than 2000 ppm 30 to 150 ppm 0 ppm operating your pool heater without sacrificing comfort. 1. The American Red Cross recommends a maximum water temperature of 78°F (25°C). Use an accurate pool thermometer. A difference of 4 degrees, from 78 to 82°F (25 to 28°C), will use as much as 40% more gas. 2. Carefully monitor the water temperature of your pool in the summertime. You can reduce heater usage due to warmer air temperatures. 3. Find the proper setting on the pool heater temperature control and use the TEMP-LOK to discourage further adjustments. 4. Set the filter time clock to start the pump no earlier than 6:00 AM during the pool heating season. This is the time when nightly heat loss balances. 5. If the pool is only going to be used on weekends, reduce the heater temperature control setting by 8 or 10 degrees during the week. Reset it to the 78°F (25°C) level a day or so before you plan to use the pool. 6. During the winter or when on vacation for longer than a week, shut down the heater by following the shut-down instructions found on the inside of the heater. 7. Where possible, shelter the pool from prevailing winds with well-trimmed hedges or other landscaping, cabanas, or fencing. 8. Always use a pool cover when practical. Besides providing a valuable safety feature, a pool cover will reduce heat loss, conserve chemicals, and reduce the load on filter systems. 3H. Periodic Inspection WARNING Improper installation or maintenance can cause nausea or asphyxiation from carbon monoxide in flue gases which could result in severe injury, or death. 3H-1. Owner Inspection Teledyne Laars designs and constructs the Laars Lite heater to provide long performance life when installed and operated properly under normal conditions. The following basic guidelines are suggested for your inspection: 1. Keep the top and surrounding area of the heater clear of all debris. 2. Keep the heater area clean and free of all combustible materials, flammable liquids and vapors, as well as sanitization chemicals. 3. Do not use the heater if any part has been under water. Immediately call a qualified professional technician to inspect the heater and replace any part of the control system which has been submerged. 4. If the heater is equipped with a pressure relief valve, check for corrosion and make sure that water runs freely through it. If corrosion is found, replace the pressure relief valve. Page 20 5. Be sure all combustion air and ventilation openings are not blocked. 3H-2. Professional Inspection In addition, annual inspections by a qualified professional technician are recommended to keep the heater operating safely and efficiently through the years. The following basic checks should be performed. 1. Check for loose or broken wires and terminal connections. 2. Verify pressure switch operation by cycling the spa pump on and off a few times. The heater should go off immediately after the pump stops. 3. Inspect the electrical controls, specifically the following: a. High limit controls. b. Pressure switch. c. Temperature control. d. Automatic gas valve. ...
Questo manuale è adatto anche per i modelli :Elettrico - LLD (1.39 mb)
Elettrico - LLD (1.39 mb)
Elettrico - LLG (1.39 mb)