Non-Pressurized Thermosiphon Solar Water Heater

The Non-pressurized Thermosiphon System FS-NPTS series include models of size 100L,150L,200 and 300L. The inner tank is made of stainless steel and equipped with electric booster to supply hot water 24 hours. We have the ones with small supply water tank and without small water supply water tank for option.


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System Features: 
* Elegant and smart appearance, easy installation 
* Reliable electric back-up with protection against dry heating and thermal cut-out 
* Easy operation and intelligent control 
* Stainless steel inner tank SUS304 for good anti-corrosion 
* With 5STAR quality flat solar collector with long service life 
* Polyurethane insulation with good heat reservation 
* Totally metal flow channels made by copper 
* CE certiticated

Working Principle of Thermosiphon Circulation
How it works?
Under normal operating conditions the potable water in the storage tank is heated by the solar collectors. For example, in an open circuit system where the household hot water is in the collector circuit, cold water is pushed downwards via the long external pipe from the storage tank to the bottom of the solar collector. As the water is heated in the absorber by the sun, it rises to the top of the collector then travels through the short external pipe into the storage tank. In the evenings or when raining, the circulation stops and if the water is not hot enough, the electric heater can work to ensure you always have hot water on tap.

Model No.

FS-NPTS-100

FS-NPTS-150

FS-NPTS-200

FS-NPTS-300

Water Tank

Circulation Type

Non-pressurized open loop

Tank capacity

100L

150L

200L

300L

External dimensions

Φ460x1090mm

Φ525x1212mm

Φ525x1486mm

Φ525x2282mm

Outer tank materials

Aluzinc steel

Inner tank materials

Stainless steel SUS 304-2B

Max working pressure

0.05 Mpa

Water Re-filling Way

Magnetic Valve or Small water supplement tank

Electrical booster

1.5kw

1.5kw

1.5kw

2.5kw

Solar Collector

Overall area

1.5㎡x1pcs

2.0㎡x 1pcs

2.5㎡x 1pcs

2㎡x 2pcs

Collector dimensions

1500 x 1000 x80(95)mm

2000 x 1000 x80(95)mm

2000 x 1250 x 80(95)mm

2000 x 1000 x 80(95)mm

Mounting Bracket

Material

Aluminium Alloy & Stainless Steel  or  Painted Galvanized Steel

Bracket type

A: For flat roof        B: For tilted roof

Weight

Weight of overall system (empty) [kg]

58

92

104

150

Weight of overall system (filled) [kg]

158

242

304

450

Certification

CE

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