Davis & Shirtliff DAYLIFF Ultrasun UVT VacTube, Инструкция по установке и эксплуатации

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If a controller is used to turn on the electrical heater automatically, ensure
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it is set at 45 C . This is usually sufficient for a hot water shower. A higher
setting will increase electricity bills unnecessarily.
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Paint the MS support stand once every five years. Though the supporting
structure and other MS parts are powder coated for long rust-free life,
inspect occasionally and paint them if need be.
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Regularly inspect the solar water heater tank to make sure it's not
damaged and that no rainwater runs into the tank insulation. Also check
for any rusting in the plumbing lines.
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To drain the water from solar water heater (for cleaning or repair),
disconnect the cold water inlet pipe line and open the cold water inlet
valve; If a feeder tank is used, close the cold water inlet valve and remove
the drain pipe dummy to drain the water from the solar water heater tank.
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If the water is hard, it is recommended to clean the solar water heater tank
and glass tubes with fresh water once a year to flush out settled scales.
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Any repairs or maintenance should be carried out by a qualified
technician.
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