Indirect Flat Plate Solar Water Heater
Indirect flat panel solar water heater working principle:
The flat panel solar collector absorbs solar energy. The low-iron content solar glass allows more solar energy to pass through. In the closed circuit system, heat is absorbed by the flat panel collector and passed to the heat transfer liquid inside the flat panel solar collector. As the temperature of the liquid increases, the hot fluid rises up through the collector by the natural thermosiphon principle, flow into the heat exchanger jacket around the water tank. Here, the heat is transferred to the water, cooling the fluid. The cooler fluid is then forced back down into the collector through the displacement action of further hot fluid rising up into the heat exchanger jacket. The cooler fluid that has been forced down is again heated in the collector and rises back up to pass the heat to the water in water tank. This circulation repeats until all water in the storage tank heated.
Indirect flat panel solar water heater characteristic:
1. Closed circuit double jacket design, the large jacket area where heat is exchanged makes the Jinyi indirect type solar water heater more efficiency.
2. Enamel inner tank, protects the product from corrosion, scale and frost.
3. Whole system certified by Solar Keymark (EN12976), flat panel solar collector certified by Solar Keymark (EN12975).
4. Multifunctional bracket for both flat and sloped roof installation.
5. Withstanding high pressure (0.6MPa), comfortable shower.
6. Suitable for cold area, even reach to -40℃.
Indirect flat panel solar water heater Key Components:
① T/ P Valve ② For filling ③ Outer tank ④ Jacket ⑤ For filling (Safety valve) ⑥ Insulation layer ⑦ Magnesium rod ⑧ Inspection flange ⑨ Cold water inlet ⑩ Circulation outlet ⑪ Hot water outlet ⑫ Inner tank ⑬ Circulation inlet ⑭ Support ⑮ Tempered glass ⑯ Header tube ⑰ Back sheet ⑱ Insulation layer ⑲ Riser pipe ⑳ Absorber plate 21 Frame
Indirect flat panel solar water heater specification
1. Inner tank and Jacket: enamel carbon steel.
2. Outer tank: Galvanized steel.
3. Insulation layer: Polyurethane foam.
4. Support: Painted galvanized steel.
5. Flat plate solar collector: 2/2.5m2 size, blue titanium coating.
6. Working pressure: 6 Bar; Testing pressure: 10 Bar.
7. Capacity: 150L-300L.
Parameter table:
| Model | Tank capacity | Absorber Area | Person No. | Loading Qty. (set) | |
| (L) | (m2) | 40GP | 40HQ | ||
| JFP-160E | 160 | 2 | 3 | 95 | 105 |
| JFP-200E | 200 | 2.5 | 4 | 88 | 96 |
| JFP-250E | 250 | 4 | 5 | 62 | 68 |
| JFP-300E | 300 | 4 | 6 | 52 | 60 |
| JFP-300E/A | 300 | 5 | 6 | 52 | 60 |
Necessary Accessories:
Optional Accessories:
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Temperature & Pressure relief valve
- Used for tank pressure release - Working temperature: 90℃ - Working pressure: 8 Bar |
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Check valve
- Used for control one-way flow and prevent water from flowing back. - Material: brass. |
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| Item No. | Size | Quantity | Item No. | Size | Quantity | |
| 812 007 067 | 1/2 inch | 1 unit | 812 007 002 | 3/4 inch | 1 unit | |
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Magnesium rod
- Used for tank protection - Φ22 x 300mm length |
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Insulated pipe
- Pipe: Corrugated stainless steel - Insulation pipe - Connection size: 1/2 inch |
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| Item No. | Size | Quantity | Item No. | Size | Quantity | |
| 812 801 002 | 3/4 inch | 1 unit | 812 007 053 | 1/2 inch | 2 units | |
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Air Vent Valve
- Used for jacket pressure release - Material: Brass - Working pressure: 2 Bar |
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Plug
- Used for jacket - Material: Stainless steel SS304-2B |
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| Item No. | Size | Quantity | Item No. | Size | Quantity | |
| 812 007 033 | 1/2 inch | 1 unit | 812 010 034 | 1/2 inch | 1 unit | |
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Brass elbow
- Material: Brass - Connection size: DN22 ×1/2 inch |
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Brass elbow
- Material: Brass - Connection size: 1/2 ×1/2 inch |
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| Item No. | Size | Quantity | Item No. | Size | Quantity | |
| 812 002 805 | 1/2 inch | 2 units | 812 002 806 | 1/2 inch | 2 units | |
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Coupling
- Used for flat collector - Material: Brass - Connection size: DN22 x DN22mm |
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Plug
- Used for flat collector - Material: Brass - Connection size: DN22mm |
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| Item No. | Size | Quantity | Item No. | Size | Quantity | |
| 812 010 004 | DN22 mm | 0 / 2 units | 812 010 042 | DN22 mm | 2 units | |
Optional Accessories:
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Thermostatic mixing valve
- Material: Nickle plated brass - Cold water temperature: 5-29℃ - Hot water temperature: 50-95℃ - Regulating temperature: 35-55℃ - Working pressure: 0.03-1 Mpa |
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Expansion vessel
- Capacity: 18/24/60 L - Max. working pressure: 10 Bar - Working temperature: -10~90℃ - Pre-charge: 2 Bar - Connection size: 3/4 inch |
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| Item No. | Size | Quantity | Item No. | Size | Quantity | |
| 812 007 052 | 3/4 inch | 1 unit | 812 003 012 | 3/4 inch | 1 unit | |
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3 way valve
- Material: Brass - Connection size: 3/4×3/4×3/4 inch |
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Controller (economic version)
- Used for pressure solar water heater - Automatic operation - Water temperature display - Intelligent control electric heater |
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| Item No. | Size | Quantity | Item No. | Voltage | Quantity | |
| 812 000 027 | 3/4 inch | 1 unit | 812 007 007 | 110V/ 220V | 1 unit | |
