Non-Pressure Solar Water Heater
Evacuated Tube
Non-Pressure
Solar Water Heater
SolarMaster SNP series of Non-Pressure Solar Water Heater are suitable for both residential and commercial applications.
FEATURES
The design of the SNP Non-Pressure Solar Water Heater is a culmination of nearly 15 years of feedback from installers and solar professionals all over the world and aims to meet their requirements with the following key features:
● Most economical solar heater, work stable and no maintenance
● Completely automatic operation, if with the controller
● Easy to install for flat roof and pitched roof
● One time heat exchange, High heat efficiency
● High pressure polyurethane foaming with thickness 55mm
● Gas or electrical boost options are available
● High wind load strength and High snow load strength
PRODUCT RANGE
SNP system are available from 100-360L sizes and have a number of options depending on the local market requirements.
| Model | SNP-15 | SNP-20 | SNP-25 | SNP-30 |
| Size A | 1350mm | 1585mm | 2158mm | 2510mm |
| Size B | 1410mm | 1532mm | 1963mm | 2310mm |
| Size C | 1550mm | 1550mm | 1550mm | 1550mm |
| Size D | 1600mm | 1600mm | 1600mm | 1600mm |
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Size E
(If with the assistant tank)
|
2010mm | 2010mm | 2010mm | 2010mm |
| Peak Output * | 1009W | 1335W | 1667W | 2019W |
| Gross Area |
2.40 m2
|
3.17 m2 | 3.93 m2 | 4.70 m2 |
| System Capacity | 150 L | 200 L | 250 L | 300 L |
| Tube Quantity | 15 | 20 | 25 | 30 |
*Calculated at midday (trans IAM = 1), G=1000W/m2, ∆T (tm-ta)=0, Location is in Jinxing, China
How It Works
Construction
The SolarMaster Solar Water Heater is comprised of four main parts:
The SolarMaster Solar Water Heater is comprised of four main parts:
Evacuated Tube
Absorbs solar energy and converts it to usable heat. Vacuum between the two glass layers insulates against heat loss.
Absorbs solar energy and converts it to usable heat. Vacuum between the two glass layers insulates against heat loss.
Water Tanks
It stock the hot water from the glass tubes, and keep the heat.
It stock the hot water from the glass tubes, and keep the heat.
Mounting Frame
Strong and easy to install with various options to match different mounting methods.
Strong and easy to install with various options to match different mounting methods.
Assistant Tank (Optional Use)
It can load the cold water into the main tank automatically when water level is down.
It can load the cold water into the main tank automatically when water level is down.
Without the assistant tank, customers can install the solar controller to realize the same function.
Operation
Step 1: The absorber coating on the inner glass tube absorbs sunlight and converts it into heat.
Step 2: The hot water inside the tubes floats up to the main tank, cold water inside the tank will go down to the glass tubes, and become a nature circulation.
Step 3: The cold water will be loaded into main tank automatically when you use the hot water, if with the assistant tank or solar controller.
Tank Connection Application
Case 1: Connect with Solar Controller, cold water loading automatically, sensor the water temp. and water lever, control the electrical heater.
Case 2: Install the additional assistant tank, cold water loading automatically.
Case 3: Connect with the big water storage tank, cold water loading automatically. Widely used in Latin American countries, especially in Mexico.
Main Component
Specifications
| Component |
Materials & Specifications
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Evacuated Tubes
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Material: Borosilicate 3.3
Tube style: Twin wall all glass Dimensions: ∅58mm outer tube; ∅47mm inner tube; 1.8m length, 1.65mm outer tube wall thickness |
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Solar Absorber Coating
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Material: Graded AL/N on AL
Absorptance: >92% (AM1.5); Emittance: <8% (80 C) Vacuum: P<5x10-5 Pa; Heat loss: <0.8W/(m2 C) |
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Water Tank
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Outer Tank: Φ470mm, Stainless Steel 304-BA or 201-BA or Color Steel , 0.4mm thickness
Inner Tank: Φ360mm, Stainless Steel 304-2B or 316L, 0.4mm thickness
Insulation Layer: 55mm thickness, High density Polyurethane Foam from Germany
Operating temperature: 55-95 C
Lowest Startup temperature: 0 C
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| Rubber Components |
Material: HTV Silicone Rubber (UV stabilized)
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Mounting Frame
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Material: Stainless Steel 304-BA or 201-BA or Aluminum alloy or Galvanised Steel
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