Solar Collectors Models ST-2000 & ST-2500
Description
Solar Collectors
Flat solar collector, firmly built, of new technology suitable for all forced circulation solar systems.
The production process and the raw materials that are used produce a high thermal energy efficiency even during periods with insufficient radiation.
Models
The MEGASUN solar panels are produced in two types, ST-2000 (2,10 m2) and ST-2500 (2,61m2), with black paint coating or a blue titanium selective, which either in solo or in combinations cover all of the requirements of solar systems.
Basic Technical Characteristics
- Frame made from stainless aluminum, which is extremely durable to adverse climatic conditions (high humidity - coastal areas).
- Strong side and back insulation (20mm glass wool and 40mm rock wool), minimize thermal losses in areas with low seasonal temperatures.
- Special prismatic glass, resistant to hale (solar tempered glass).
- Absorber made from copper treated with a blue colour titanium selective coating or with black paint. The absorber with titanium coating is ideal for regions with high diffused radiation and low temperatures, absorbing up to 16% more solar radiationin winter months compared to simple black chrome absorbers. This method of coating is non toxic and does not pollute the environment, while keeping stable its mechanical and optical properties during high and low temperatures.
Dimensions of Solar Panels (Collectors)
| |
ST-2000 |
ST-2500 |
| Dimensions (mm) |
2050x1010x90 |
2050x1275x90 |
| Gross Surface |
2.10 |
2.61 |
| Net Surface |
1.8 |
2.31 |
| Weight (kg) |
43 |
51 |
| Capacity (L) |
1.67 |
2.09 |
| Test Pressure (bar) |
10 |
10 |
| Max. Working Pressure (bar) |
7 |
7 |
| Absorber a |
95%±2% |
95%±2% |
| Absorber e |
5%±3% |
5%±3% |
Solar Panels Models ST-2000 & ST-2500 SELECTIVES
Solar Panel Selective
Solar Collectors
Technical Characteristics
- Absorber: a unique sheet of copper sheet
- Thermal Absorption: 95%
- Thermal loss: 5%
- Thickness: 0,2mm
- Coating: selective titanium
Characteristics of the tubes
- Diameter of the horizontal tubes: (∅22mm)
- Diameter of the vertical tubes: (∅10mm ou ∅8mm)
- Material: copper
- Test Pressure: 10 bars
- Maximum functional pressure: 7 bars
Frame
- Material: heavy aluminum profile
- Back insulation: 35-40 mm insulation
- Side insulation: 20 mm glasswool
Cover
- Material: solar tempered glass
- Thickness: 3,5mm or 4mm
- Watertightness: joint EPDM and transparent silicone
General Characteristics
- Total thermal efficiency: 95% ± 2%
- Total thermal losses: 5% ± 3%
- Antifreeze: glicol appropriate for solar systems
Support base
The characteristics of the support base for the collector(s) with the ways of installation on the various types of roofs, are described analytically on page 32, Chapter 5, Installation Instructions.
Download the pdf to view dimensions of installed collectors
Download the pdf for Installation Instructions
Cost-effective, durable boilers ideal for home and professional use made by quality, eco-friendly material.
On this page you are provided with information, specifications and technical data about the Megasun Vertical Boilers provided by Solarnet S.A. Boiler Storage Tanks Manufacturer.
“Megasun Boilers” are manufactured in a variety of types and can be also used as hot water storage tanks. They comply to DIN 4753 and EN 12897 specifications, are tested according to the international hygiene regulations and have a capacity ranging from 150 to 1000 liters.
Megasun hot water boilers are ideal for home use as well as for hotels, offices, mansions etc, are provided with single, double, triple power source with buffers and are available in 5 different colors. Their insulation of high density cast polyurethaneis eco friendly and ensures hot water for longer. Furthermore, Megasun hot water boilers are the fastest on the market due to their large heat exchanger, making them also cost-effective.
The types of vertical hot water boilers and storage tanks are the following:
- Type BL0, without coils (150, 200, 300, 420, 500, 800 & 1000 litres)
- Type BL1, with one coil heat exchanger (150, 200, 300, 420, 500, 800 & 1000 litres)
for connection to solar collectors
- Type BL2, with two coil heat exchangers (150, 200, 300, 420, 500, 800 & 1000 litres)
for connection to solar collectors and central heating system
- BUFFER
- Type TIT, Tank in Tank (800 & 1000 litres)
for connection to solar collectors and central heating system
General Characteristics of Megasun Hot Water Boilers
Water Storage Tanks:
- Material: Steel plate USD37.2 quality
- Welding: Robotically welded in inert gas environment
- Cleaning: 6 point metal blasting
- Internal protection: Glass enamel baked at 850° C
- Function Pmax: 6 bar
- Testing Pmax: 15 bar for 5 minutes
- Function Tmax: +95° C
Insulation:
- Material: Polyurethane CFC & FCKW Free
- Density: 40 kg/m3
- Thickness: 65 mm
(For storage tanks 800, 1000 and TIT, insulation is made from flexible polyurethane 70 mm and is detachable for easier passage during installation)
Outer Cover Material: PVC in various colors
Heat Exchanger Type:Coil heat exchanger made of heavy duty steel tube 33mm (tubo).
Electrical Backup (upon request): 2 to 4 KW (230 V) with thermostat or 6KW or 9KW (400 V) without thermostat.
Description of BL0, BL1 & BL2 &TIT (Tank in Tank) Storage Tanks
Tank weights when empty (in KG)
| Liter / Type |
BL0  |
BL1 |
BL2 |
Buffer |
Tank in Tank |
| 150 |
51 |
64 |
69 |
53 |
- |
| 200 |
68 |
85 |
93 |
60 |
- |
| 300 |
94 |
108 |
128 |
90 |
- |
| 320 |
- |
- |
170 |
- |
- |
| 420 |
118 |
132 |
152 |
118 |
- |
| 500 |
122 |
165 |
182 |
117 |
- |
| 800 |
127 |
176 |
210 |
127 |
258 |
| 1000 |
152 |
201 |
235 |
152 |
283 |
TIT Models (tank in tank) ΤΙΤ models are used for hot water in combination withhouse heating. Available with two coils in the heating tankand with an extra coil inside the water tank upon request. They also contain a stratifier inside the tap water tank andare enameled. On the heating tank there are 6 inlets/outlets1 " for any required use.
Thermal Insulation:
- Polyurethane Foam CFC & FCKW free
- Density: 40 kg/m3
- Thickness: 65 mm
- Thermal Conductivity: 0,023 W/mk
- Fire Class: Β3, auto extinguishable
Hydraulic Connexions BL:
| Volume |
150 l |
200 l |
300 l |
420 l |
500 l |
800 l |
1000 l |
| Sensor |
1/2" |
1/2" |
1/2" |
1/2" |
1/2" |
1/2" |
1/2" |
| Heat exchangers |
1 " |
1 " |
1 " |
1 " |
1 " |
1 " |
1 " |
| Hot-Cold inlets |
1 " |
1 " |
1 " |
1 " |
1 " |
1 " |
1 " |
| Electric Element |
1½" |
1½" |
1½" |
1½" |
1½" |
1½" |
1½" |
| Recirculation |
1 " |
1 " |
1 " |
1 " |
1 " |
1 " |
1 " |
Hydraulic Connexions TIT:
| Volume |
800 l |
1000 l |
| Sensor |
1/2" |
1/2" |
| Heat exchangers |
1 " |
1 " |
| Hot-Cold inlet-outlet, recirculation |
1 " |
1 " |
| Buffer connections |
1 " |
1 " |
| Extra Coil inside tap water tank* |
Φ16 |
Φ16 |
*option upon request
Corrosion Protection Inner cleaning of the tank with automated sand blasting (notchemically) resulting in a perfect adherence of the enamel. Food grade enamel quality applied with a “double direct” method and baked at 850° C. Extra corrosion protection is offered by magnesium rods that must be checked and replaced if necessary every 2 to 5 years, depending on the quality of the water.
Backup Heating Source If solar power is not sufficient to warm the water, a backupheating source can be used, either through an electric element or another heating source (central heating burner) that will be connected to the upper heat exchanger (BL2 models).Control of the electric element is made through the built in thermostat. It is recommended the thermostat be positioned between 50° C and 60° C during winter months and between 45° C and 50° C during summer.
Thermostat: model COTHERM type TUS T115
- Regulation: between 30° C - 80°C
- Contacts: bakelite– silver
- Protection cap from nylon 6 (flame retardant).
- 230 V /20 A
Backup Heating Source Using the Second, UpperHeat Exchanger Coil type heat exchanger, from heavy duty steel (type Tubo) integrated in the upper part of the tank, in order for the secondary heating source to heat only the upper part of the tank. Further technical data concerning the upper heat exchanger refer to the table concerning BL2 tanks.
Typical Applications
Installation Instructions
Technical Specifications
