Open Loop Flat Panel Solar Water Heater

Product Description:

This is a pressurized system, with direct tank and flat panel solar collector combined.We call it compact flat panel pressurized solar water heater.

Open-loop systems are simply and fast way of water heating. They are best suited to warm climate regions because of operating directly with potable water. Open-loop systems are not recommended in regions where water quality is not good enough.

The enamel is coated inside the water tank which is of high corrosion resistance and of great pressure bearing. Our porcelain enamel tanks approved by CE, WATER MARK, ETL, WRAS, EN12977-3

The whole system approved by SOLAR KEYMARK (EN 12976 Standard)

Imported blue titanium absorber from Germany with high absorptivity(95%) and low heat loss(5%). High purity oxygen-free copper pipes as circulation system with high thermal conductivity, anti-corrosion pressure-bearing and longer service life. Low-iron tempered solar glass as cover with 92% transmittance. Our flat panel solar collector approved by SOLAR KEYMARK(EN12975 Standard)

High Quality Parts:

Incoloy 800 Electric Element
CE Approved

Real Images and Details:

Technical Parameters:

Direct Water Tank:

Tank Capacity	100L	150L	200L	250L	300L
Outer Tank Diameter(mm)	Φ540	Φ540	Φ540	Φ540	Φ540
Inner Tank Diameter(mm)	Φ440	Φ440	Φ440	Φ440	Φ440
Inner Tank Material	Steel BTC340R(2.5mm thick)
Inner Tank Coating	Porcelain Enamel(0.5mm thick)
Outer Tank Material	Color Steel(0.5mm thick)
Insulating material	Rigid polyurethane foam
Insulation thickness	50mm
operating Pressure	6bar
Corrosion protection	magnesium anode
Electric Element	Incoloy 800(2.5kw,220v)
Adjustable Thermostat	30℃~75℃
TP Valve	7bar,99℃(water mark approved)

Flat Panel Solar Collector:

Dimension		2000100080mm	2000125080mm
Gross area		2m²	2.5m²
Aperture area		1.85m²	2.35m²
Absorber		Aluminum Plate	Aluminum Plate
	Material	Germany Blue Titanium	Germany Blue Titanium
Selective Coating	Absorptivity	≥95%	≥95%
	Emissivity	≤5%	≤5%
Header Pipes		Copper (¢ 220.8mm)/(¢ 250.8mm)	Copper (¢ 220.8mm)/(¢ 250.8mm)
Riser Pipes		Copper (¢ 80.6mm)/(¢ 100.6mm)	Copper (¢ 80.6mm)/(¢ 100.6mm)
Cover Plate	Material	Low – iron tempered glass	Low – iron tempered glass
	Transmittance	≥92%	≥92%
Frame		Aluminum alloy	Aluminum alloy
Base plate		Galvanized plate	Galvanized plate
Base Insulation		Glass wool	Glass wool
Side Insulation		polyurethane	polyurethane
Sealing material		EPDM	EPDM
Max test pressure		1.4MP	1.4MP
Max work pressure		0.7MP	0.7MP

How It Works:

The system operates on the thermosiphon principle, It adopts the water-water circulation type. Heat adsorption membrane on the flat plate absorbs the solar heat to heat the water in the heat collector directly. Deliver the heated water to the upper part of hot water storage tank via circulation pipe and unheated cold water in the lower part flows into the flat-type heat collector as supplementation. Then cold water is heated and delivered to the hot water storage tank. The circulation of water repeats till all water in the water tank is heated to the specified temperature.

System Installation Diagram

Installation and Operation Manual:

Open Loop Flat Panel Solar Water Heater Manual