Solar set 2 x SR 22 vacuum tube collector with 300 l storage tank

Solar set with 2 SR 22 vacuum tube solar collectors + DHW cylinder 300 l.

SOLAR KEYMARK certified to take advantage of subsidy programmes!

RELEVANT INFORMATION

High-quality solar kit with a 300-litre hot water cylinder and 2 SR 22 tube-and-pipe solar collectors included.

The assumed surface area of the collectors provides efficient water heating of approximately 50% of the annual demand. The remaining 50% (winter period) is to be provided by a central heating (central heating) boiler connected to the upper cylinder coil or by an electric heater.

COMPONENTS

• 2 x SR 22 vacuum tube solar collector
• 1 x WEBER W2 enamelled DHW cylinder with two coils 300 l
• 1 x WEBER CLASSIC PWM solar controller
• 1 x HYDRA GPS PWM electronic solar pump group with rotameter
• 1 x diaphragm vessel suspension
• 1 x solar expansion vessel (expansion tank) 18 l.
• 1 x propylene glycol, concentrate 10 l
• 1 x cross coupling fi 22 x 3/4"
• 1 x compression double coupling fi 22
• 1 x clamping elbow fi 22 x 3/4"
  
  
  

TECHNICAL SPECIFICATIONS OF MAIN COMPONENTS

SR 22 vacuum tube solar collector

• Warranty: 10 years
• Number of vacuum tubes: 22
• Dimensions (W x L x H): 191.7 x 171.5 x 12.5 cm
• Total surface area: 1.77 m²
• Aperture area: 2,04 m²
• Heat carrier: Propylene glycol with water
• Stagnation temperature at 1000W/m², 30°C: 220°C
• Absorption: > 94 %
• Emission: < 8 %
• Permissible installation angle: 15°-50°
• Housing colour: black
• Manifold (inner): red copper
• Collector (outer): aluminium alloy
• Daily efficiency: ≥55%
• Hail resistance: 25 mm
• Maximum operating pressure: 12 bar
• Heat pipe: anti-freeze > -35 degrees
• Connection diameter: 25.4 mm = 1"
• Liquid capacity: 1,5l
• Weight empty with assembly kit: 79.5 kg
• 2 mm thick hail-proof borosilicate glass
• High efficiency thanks to copper absorber sprayed onto the glass
• HEAT PIPE technology to protect the unit from drastic overheating on sunny days when heat extraction from the unit is not possible
• Tubular system made of copper
• Stable support structure made of stainless steel
• Mounting kit for installation of solar panels on pitched roofs
• Special heat pipe protection against unsealing
• Solar Keymark certified
  
  

Storage tank

• Warranty 4 years
• Capacity: 300 l
• Height: 142 cm
• Diameter with insulation: 65 cm
• Thickness of insulation: 5 cm
• Number of coils: 2
• Lower coil area: 1,5^m2
• Upper coil area: 0.9^m2
• Maximum pressure: 10 bar
• Corrosion protection: double enamel, magnesium anode
• Casing: skay coat in grey or orange depending on available batch
  
  

WEBER CLASSIC PWM controller

• Large LCD display
• Intuitive menu
• Pump control with PWM signal
• Graphic display of system operation
• Solar pump speed control
• Possibility to control a domestic hot water circulation pump or an electric heater
• Collector overheating protection function
• Tank overheating protection function
• Holiday function
• Anti-freeze function
• Solar energy meter
  
  

Solar pump group HYDRA GPS PWM with rotameter

• Energy-saving electronic circulating pump Hydra GPS II 20-8-130 PWM2
• Thermal insulation (casing)
• Two ball check valves (integrated) with non-return valves and thermometer
• Rotameter (2-12 l/min)
• Safety group with pressure gauge and safety valve (6 bar)
• Air separator
  
  

Installation fluid

The solar fluid is manufactured on the basis of propylene glycol, which means that it is completely safe for health in the event of any possible leakage into the domestic water. The fluid is hygienically certified by the National Institute of Hygiene, which is an additional guarantee of the high level of safety. The fluid is supplied in a 10-litre container as a concentrate with a freezing point below -64 °C. When diluted with water, up to 30 litres of ready-to-use mixture is obtained, which is sufficient for typical installations.

Expansion vessel (expansion vessel), solar 18 l.

Despite appearances, the diaphragm vessel is one of the most important components of a solar installation. The selection of a vessel with too low an operating temperature or too low a permissible pressure can cause frequent operating problems.

The maximum operating temperature of the diaphragm vessel in the kit is 120 °C, and the permissible operating pressure is as much as 10 bar, which guarantees high stability of the entire system.

Coupling set

The kit is equipped with a system of brass compression fittings to enable the collectors to be efficiently and securely connected to each other and to be connected to the pipework.

The set comprises:

• 1 x Compression couplers for connecting two adjacent collectors to each other
• 1 x clamping elbow with a ¾" GZ connection for a smooth connection with corrugated stainless steel pipes
• 1 x Compression cross coupling with a GZ ¾" connection enabling efficient connection to corrugated stainless steel pipes
  
  

REMARKS: For a complete installation of the solar set, you will need, among other things, a mounting kit for the collector, piping and installation fittings necessary to connect the tank to the existing installation. The mounting kit is not included as standard, due to the need to adapt it each time to the type of roofing and roof pitch. All these products can be purchased in our webshop.

ADVANTAGES

• Minimal running costs
• Living in line with the ECO trend
• Quick payback period
• Fully maintenance-free
• Long service life