Solar Thermal Systems FAQs

Solar Thermal Systems FAQs

I Am Installing A Drainback Solar Thermal System How Do I Facilitate Proper Drainback?

I am installing a drainback solar thermal system how do I facilitate proper drainback? In order for your system to "drainback" when the pump shuts off your collectors and piping must be sloped at 1/4" per 12" of run.  Be aware that visually your collectors will not be parallel with your roof ridge.

How Do I Determine Sun Angles Throughout the Year For My Location?

How Do I Determine Sun Angles Throughout the Year For My Location? The University of Oregon provides a free online tool that does just this. Plug in your location and this tool will provide a PDF with precise sun data. With this information you can determine the appropriate distances to place your arrays so as not to shade them during...

Do I Need To Mix The Glycol I Purchased From SunMaxx With Water?

Do I Need To Mix The Glycol I Purchased From SunMaxx With Water? No. You can commission your system with glycol strait out of the container. Our XMaxx Glycol Solution is not only premixed with distilled water but also made with bio-based raw materials and uses 20% less energy to produce than standard propylene glycol!

What labels do I need for my solar hot water system to pass NYSERDA inspection?

What labels do I need for my solar hot water system to pass NYSERDA inspection? If you have purchased your system from SunMaxx, we have a PDF with the appropriate labels that you can print on a color printer, laminate, and cut apart. Each label has a designated location. Ask your sales rep.

What labels do I need for my solar hot water system to pass California Solar Initiative (CSI) inspection?

What labels do I need for my solar hot water system to pass California Solar Initiative (CSI) inspection? If you have purchased your system from SunMaxx, we have a PDF with the appropriate labels that you can print on a color printer, laminate, and cut apart. Each label has a designated location. Contact your sales rep.

How can I connect an air compressor to my pump station to pressure test my solar thermal system for leaks?

How can I connect an air compressor to my pump station to pressure test my solar thermal system for leaks? Our pump station’s fill valve has GHT hose threads on the outside. You can easily make an adaptor using the following three fittings, which can be purchased at your local hardware store or plumbing supply. Schrader valve x ¼” male NPT Reducing...

How should I test my solar thermal system for leaks?

How should I test my solar thermal system for leaks? After a solar thermal system has been installed, it should be tested for leaks before it is charged with heat transfer fluid. Leak testing should be done with air pressure. Air pressure can detect even small leaks that would be difficult to detect with liquid, because the liquid would evaporate...