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

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13
7. USAGE
It is important that the hot water availability is properly managed as solar
energy heating only occurs between the hours of 9:00am - 4:00pm. This
effectively means that hot water is available in the evening as any draw off will
result in temperature reduction from the replacement cold water. If hot water is
required in the morning there should either be no night time draw off or the
booster heater should be used. Users should plan hot water usage
accordingly.
The recommendations below will help to improve the overall efficiency of the
solar water heater.
•
Hot water will flow from usage point only after unheated water in pipeline
flows out first.
•
Plan the consumption of hot water in quick intervals at one time (either in
the morning or evening) to minimize heat loss in the pipeline.
•
Run the hot water slowly, this will avoid the mixing of hot and cold water in
the solar water heater tank.
•
Do not withdraw more than the rated capacity of the system on a single
day.
•
Use electrical backup when more hot water is required.
Heating time for 1.5kW element
0
Hours of heating (for 15C rise in temperature)
Litres of Water
1.5kW
75 100 125 150 175 200 225 250 275 300
0
0.5
1
1.5
2
2.5
3
3.5