SOLAR THERMAL SYSTEMS

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SOLAR THERMAL SYSTEMS

A typical hot water system consists of flat plate collectors, a thermal storage tank and piping. Solar radiation is absorbed by the collector and the heat collected is transferred to the storage tank. The flat solar collectors are usually mounted on the roof of the building, facing south and tilted 30°-60° to the horizon, to maximize the amount of radiation collected annually.
Apart from household use, which is the most common today, active solar systems can be used wherever low temperature heat is required. Thus, the use of solar energy to produce cooling, for the air conditioning of spaces and other applications, appears to be one of the promising prospects, due to increased solar radiation, especially during the time cooling loads are required. There have already been some successful applications of such systems in our country and it is expected to have rapid growth.
Another application that has been widely popular in the European market is the combination of hot water and space heating with active solar systems. The use of such systems in Greek climate conditions for the heating of spaces has been considered both technically and economically efficient, if combined with the right building design/construction (proper insulation, use of passive solar benefits, etc.) and a cooperative user. It can save conventional energy in new or old buildings, in which all possible measures to minimise losses and maximise cost effectiveness have been taken into consideration. It is however very important to properly design the solar thermal system and to carefully consider the installation budget to avoid making wrong choices and to optimize efficiency, something that our company is able to undertake.

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SELECTED CALPAK PRODUCTS

EP CL2-200/2x200ga MODEL CHARACTERISTICS

Solar thermal systems (forced flow systems) are the newest application for powering your home with solar thermal energy. The three main components of a solar thermal system are: the solar collectors (flat or vacuum), the free-standing hot water storage tank (boiler) and a special device that includes the pump and the automatic central control system (solar station).
The major advantages of a solar thermal system are as follows:
• Higher performance due to better solar thermal energy circulation from the collector to the boiler thanks to the use of the pump.
• Ensured unlimited hot water 24 hours a day due to the smart operation of the solar station control system and the large storage capacity of the boiler.
• Discreet and aesthetically pleasing installation which takes the architecture into consideration, as our collectors “lie” on the roof or are placed at a lower height on the terrace, while the tank is installed in the engine room.

SERIES SPECIFICATIONS

Absorber technology: 0.5mm high selective, full plate, laser welded
Glass quality.
High system performance depends on glass permeability (low iron=91.5% permeability) and security depends on design (tempered = unbreakable): prismatic solar safety glass (tempered) of high permeability (low-iron)
Collector frame: Anodized aluminium profile with BASF ecological polyurethane insulation
Tank quality: Boilers CL2-150: 2.5mm DKP steel, 62mm PU insulation, leather cover, Boilers CL2-200 & CL2-300: 3mm DKP steel, 47mm PU insulation, leather cover, Boilers CL2-500: 3mm DKP steel 62mm PU insulation, leather cover
Corrosion Protection: Direct Enamelling by WENDEL according to DIN 4753/3 standards
Central control unit: Solarstation FlowSol/6 by RESOL with DeltaSol C4 control and WILO Eco 15/6 pump

MODEL SPECIFICATIONS

Collector area: 2*2.21 m2 (selective type)
Tank capacity: 200 litres
Performance category: 1.0
Quality marks: Solar Keymark, CE, CSTB, SRCC
Exchangers: 1st spiral exchanger (solar circuit): 0.8m2, 2nd spiral exchanger (heating circuit): 0.5m2

EP CL2-150/14VTN MODEL CHARACTERISTICS

Solar thermal systems (forced flow systems) are the newest application for powering your home with solar thermal energy. The three main components of a solar thermal system are: the solar collectors (flat or vacuum), the free-standing hot water storage tank (boiler) and a special device that includes the pump and the automatic central control system (solar station).
The major advantages of a solar thermal system are as follows:
• Higher performance due to better solar thermal energy circulation from the collector to the boiler thanks to the use of the pump.
• Ensured unlimited hot water 24 hours a day due to the smart operation of the solar station control system and the large storage capacity of the boiler.
• Discreet and aesthetically pleasing installation which takes the architecture into consideration, as our collectors “lie” on the roof or are placed at a lower height on the terrace, while the tank is installed in the engine room.

SERIES SPECIFICATIONS

Absorber technology: Bronze U-type pipe hydroskeleton with selective vacuum tubes and parabolic reflectors (CPC)
Glass quality: borosilicate tempered glass vacuum tubes
Collector frame: black aluminium frame with PU insulation
Tank quality: Boilers CL2-150: 2,5mm DKP steel, 62mm PU insulation, leather cover, Boilers CL2-200 & CL2-300: 3mm DKP steel, 47mm PU insulation, leather cover, Boilers CL2-500: 3mm DKP steel, 62mm PU insulation, leather cover
Corrosion Protection: Direct Enamelling by WENDEL according to DIN 4753/3 standards
Central control unit: Solarstation FlowSol/6 by RESOL with DeltaSol C4 control and WILO Eco 15/6 pump

MODEL SPECIFICATIONS

Collector area: 2.48 m2 (vacuum type)
Tank capacity: Heat capacity and stored hot water temperature depend on tank capacity: 150 litres
Performance category: 1.5
Quality marks: Solar Keymark, CE, CSTB, SRCC
Exchangers: 1st spiral exchanger (solar circuit): 0.5m2, 2nd spiral exchanger (heating circuit): 0.8m2