Overall Design Considerations

Every situation is different and the final responsibility for conforming with local regulations, design and installation of a system lies with the designer/installer/owner.

Thermomax strongly recommends that a qualified engineer design, and be responsible for custom multiple application systems.




Collector Utilization

Vacuum Collector is basically a powerful boiler that works throughout the day, whether you want it to or not!  The heat it generates needs to be removed and used immediately. Long stagnation will damage collectors permanently. 
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The performance of the Thermomax Collector is directly related to the amount of light (global radiation) that it receives. Easy charts suggesting expected  Thermomax energy output for the United States and its territories.
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US Insolation
Charts



Storage Tank Options

Domestic Hot Water (DHW) is the primary application for the Vacuum Collector.
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If possible a single solar storage tank with an insulation factor of R-16 or better should be used. A further R-10 blanket should be added, along with thermal check valves on both the cold feed and hot water pipes. A 120ºF tempering valve will provide constant temperature water to the house, and allow the tank to safely store higher temperatures.
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Solar Storage
Tanks



Piping and
Pressure Drop
For most DHW systems 3/8" soft copper can be used to and from the collector. This should be insulated to R-5.2 or better. Note that the pipe in the heat transfer manifold is factory insulated to R-16.5 or better. This combination will loose very little energy.
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Although a Thermomax system is capable of providing 100% of hot water needs in many areas, backup heating for the water should be provided. Solar hot water tanks are available either for storage only, or with electric backup. A storage tank with a tank less gas water heater for backup is an excellent combination.
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Backup
Options

E-Mail:
Thermo Technologies

Thermal Solar Collectors | Solar Controller | Solar Tanks | Solar Expansion Tanks

5560 Sterrett Place
Suite 115
Columbia, Maryland 21044
Voice: (410) 997-0778        Fax: (410) 997-0779