Indirect Flat Plate Solar Water Heater

Indirect flat plate solar water heater working principle:
The 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 collector and passed to the heat transfer liquid inside the 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 plate 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 plate 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℃ .

               

T/ P Valve
For filling
Outer tank
Jacket
For filling (Safety valve)
Insulation layer
Magnesium rod
Inspection flange
Cold water inlet
Circulation outlet
Hot water outlet
Inner tank
Circulation inlet
Support
Tempered glass
Header tube
Back sheet
Insulation layer
Riser pipe
Absorber plate
21 Frame
Indirect flat plate solar water heater Key Components

Indirect flat plate 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:
Temperature & Pressure relief valve
- Used for tank pressure release
- Working temperature: 90℃
- Working pressure: 8 Bar
 
Check valve
- Used for control one-way flow and prevent water from flowing back.
- Material: brass.
Item No. Size Quantity Item No. Size Quantity
812 007 067 3/4 inch 1 unit 812 007 002 3/4 inch 1 unit
 
Magnesium rod
- Used for tank protection
- Φ22 x 300mm length
 
Insulated pipe
- Pipe: Corrugated stainless steel
- Insulation pipe
- Connection size: 1/2 inch
Item No. Size Quantity Item No. Size Quantity
812 801 002 3/4 inch 1 unit 812 007 053 1/2 inch 2 units
 
Air Vent Valve
- Used for jacket pressure release
- Material: Brass
- Working pressure: 2 Bar
 
Plug
- Used for jacket
- Material: Stainless steel SS304-2B
Item No. Size Quantity Item No. Size Quantity
812 007 033 1/2 inch 1 unit 812 010 034 1/2 inch 1 unit
 
Brass elbow
- Material: Brass
- Connection size: DN22 ×1/2 inch
 
Brass elbow
- Material: Brass
- Connection size: 1/2 ×1/2 inch
Item No. Size Quantity Item No. Size Quantity
812 002 805 1/2 inch 2 units 812 002 806 1/2 inch 2 units
 
Coupling
- Used for flat collector
- Material: Brass
- Connection size: DN22 x DN22mm
 
Plug
- Used for flat collector
- Material: Brass
- Connection size: DN22mm
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:
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
 
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
Item No. Size Quantity Item No. Size Quantity
812 007 052 3/4 inch 1 unit 812 003 012 3/4 inch 1 unit
 
3 way valve
- Material: Brass
- Connection size: 3/4×3/4×3/4 inch
 
Controller (economic version)
- Used for pressure solar water heater
- Automatic operation
- Water temperature display
- Intelligent control electric heater
Item No. Size Quantity Item No. Voltage Quantity
812 000 027 3/4 inch 1 unit 812 007 007 110V/ 220V 1 unit