AET Indirect DX Drainback Kit, 009VT Pump

Alternate Energy Technologies
Sav'n'Sun DX Drainback System DX-SK3
The Natural Solution for Hot Water

These new packages include the solar hot water system components ONLY; collectors, racks & mounts and the hot water storage tanks must be added on to make a complete system.

Reservoir Tank Finned Copper Coil

Sav’nSun is a packaged, fully integrated residential hot water system designed for the energy-minded homeowner who wants both savings and leading-edge technology that contributes to a cleaner environment.

Sav’nSun is delivered with a top mounted Drainback Reservoir with heat exchanger, freeze-protected drainback design, fluid handling package, and back-up heating element, making the system suitable for all climates.

A Retrofit Kit is also available to convert any existing water heating system into a solar water heating system using the Drainback Reservoir with heat exchanger and Solar Collectors. Please contact us for sizing information.

DX Features:

• Eliminates expensive closed loop storage tanks.
• Taco Variable Speed Solar Control Circulator Pump and two sensors.
• Now heat open loop storage tanks of any size.
• One DX Reservoir can heat storage tanks of any size.
• One DX Reservoir can also heat multiple tanks.
• 10 gallons reservoir tank with 10 sq. ft. True Fin Coil - DB-10-10X
• Ideally suited for retrofits. Heat an existing water heater without adding a solar storage tank.

The Solar Variable Speed Circulator (009-VT) continuously optimizes the flow through the collector to achieve maximum energy gain. For example, there is no benefit of pulling 80° water out of the collector when you are trying to maintain 120° in a tank. If a proper delta T is maintained through the collector then higher source temperatures can be achieved over longer periods of time, no matter the weather conditions.

Taco Variable Speed Solar Control Circulator (009-VT)

At the heart of these systems are the AE Collectors (SOLD SEPARATELY!) with their solid copper absorber plates. Efficient solar energy absorbers begin with high thermal conductivity between the fin and tube.

Forge weld crossection x-ray

The AET welding process actually makes the tube one with the fin and creates a joint at least two times wider than the thickness of the copper fin, resulting in a clean. uninterrupted heat path unlike any other.

AET absorbers have no soldered or crimped seam joints to weaken or fail. The forge welding actually strengthens the joint area, unlike other welding processes, such as ultrasonics, which causes a weakening of the fin around the joint area.

Every AET/Thermafin Absorber Plate is coated with durable and efficient Crystal Clear™ Selective Coating. The coating, which cannot be removed from the fin on an absorber plate, is based on single-phase nano-technology, pioneered by AET/Thermafin. Crystal Clear™ Selective Coating increases solar collector efficiency due to its unique optical properties. It has the ability to strongly absorb short-wave light (absorptivity: <0.96) while simultaneously reflecting long-wave light (emissivity >0.8). These intrinsic properties of Crystal Clear™ enable the collector to reach optimum temperature in a minimal amount of time and retain the absorbed heat longer.

This premium absorber is encased in a solid extruded aluminum frame and covered by a sheet of durable, low iron, tempered glass. The collector plate is insulated from the aluminum frame by a layer of foil faced poly-isocyanurate foam on the sides and back. The foam, in turn, is protected in the rear by a layer of embossed aluminum. Finally the entire unit is gasketed all the way around by a high temperature silicone sealant.