DX Drainback, 80 Gal. Tank 40 SqFt Collectors

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DX Drainback, 80 Gal. Tank 40 SqFt Collectors
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Our Code: ALNDX-80-40

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Q. What is the difference between AET's DB and DX systems?
A. The DB Systems use a single, high head pump and double wall heat exchanger. The heat exchanger is wrapped around the 80 or 120 gallon storage tank. This system is often used for applications in which local codes require double wall heat exchangers. The DX Systems use a double pump, single wall heat exchanger. The heat exchanger is submersed in the drainback tank for single wall heat transfer. One pump is for the solar loop (high head pump) and the other pump is for the potable water to be circulated through the heat exchange loop (low head.) Single wall heat exchange is more efficient, but some codes do not allow this system - and it uses two pumps.

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Alternate Energy Technologies LLC

Alternate Energy Technologies
Sav'n'Sun DX Drainback System
The Natural Solution for Hot Water
DX-80-40

Sav'n'Sun DX Drainback SystemSav’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 complete with AET collectors, a 50, 80, or 120 gallon storage tank, 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.
  • 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.
  • Available in the following sizes:
    • 10 gallons reservoir tank with 10 sq. ft. True Fin Coil - DB-10-10X
    • 15 gallons reservoir tank with 15 sq. ft. True Fin Coil - DB-15-15X
  • Ideally suited for retrofits. Heat an existing water heater without adding a solar storage tank.
  • The collectors come with a limited 10 year Warranty and tanks come with a limited 6 year Warranty.
Drainback Reservoir Tank
Reservoir Tank
Finned Copper Coil
Finned Copper Coil

Drainback Reservoir Tanks come in two sizes, 10 gallon & 15 gallon.  They also come with or without an internal heat exchanger coil. The reservoir features a tank shell (0.040 copper construction), 0.026 aluminum jacket with baked enamel finish, 5/8"OD finned copper coil (10 gallon), 7/8" OD finned copper coil (15 gallon), vertical site glass, 3/4" copper pipe construction.

Major Component Package Includes:

  • Collectors
  • Mounts
  • Drainback resevoir/heat exchange DX drainback resevoir
  • Differential controller with two sensors
  • One cast iron circulation pump with flange set
  • One bronze circulation pump
  • Water heater/heat exchanger water heater
  • Boiler drain

At the heart of these systems are the AE Collectors with their solid copper absorber plates. Efficient solar energy absorbers begin with high thermal conductivity between the fin and tube. 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. AET uses the world's finest solar selective coating on their absorbers. The revolutionary Black Majic coating was developed by AET as a collaborative effort working with Coating Industry Professionals from broad based backgrounds. Black Majic is environmentally benign and boasts an emissivity of approximately 0.10 and absorptivity of approximately 0.95 !!! 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.

The DX-80-40 Indirect (Closed Loop) System Includes:
Part# Description Quantity Weight/ea
AET 4X10 Ae-Series, Crystal Clear Collector 4 X 10 Collector 1 153 lbs
AET Standard Mount Kit for Ae Series Standard Mounting Hardware 1 2 lbs
American Water Heater Company SE62-80H-045S 80 Gal Tank w/ Element 80 Gallon Storage Tank 1 191 lbs
Eagle 2 Differential Temp. Controller w/ Display Differential Control w/ Sensors 1 3 lbs
Taco 1/8 Hp Cast Iron Pump, 0-8 Gpm,Cp-009F TACO C.I. Solar Pump 1 10 lbs
AET 3/4'' Cast Iron Flanges TACO 3/4" C.I. Flange Set 1 3 lbs
AET 3/4'' Boiler Drain 3/4" Boiler Drain 1 0.5 lbs
AET 10 Gal. SS DB Tank w/ Heat Exchanger 10 Gal S.S. Drainback Res w/ 10s.f. Heat Ex. 1 42 lbs
Taco 1/40 HP Bronze Pump, 0-6 GPM, CP-003BC4 TACO Pump - Bronze, 1/2" Sweat 1 6 lbs

 


AE Collector Quality Features


Sizing Your System

Sizing a solar water heater involves determining the total collector area and the storage volume required to provide 100% of your household's hot water during the summer. Solar storage tanks are usually 50-, 60-, 80-, or 120-gallon capacity. A small (50 to 60 gallon) system is sufficient for 1 to 3 people, a medium (80-gallon) system is adequate for a 3- or 4-person household, and a large (120-gallon) system is appropriate for 4 to 6 people.A rule of thumb for sizing collectors: allow about 20 square feet of collector area for each of the first two family members and 8 square feet for each additional family member if you live in the Sun Belt. Allow 12 to 14 additional square feet per person if you live in the northern United States. A ratio of at least 1.5 gallons of storage capacity to 1 square foot of collector area prevents the system from overheating when the demand for hot water is low. In very warm, sunny climates, experts suggest that the ratio should be at least 2 gallons of storage to 1 square foot of collector area. For example, a family of four in a northern climate would need 20 square feet of collector area for the first person, 20 for the second person, 12 to 14 for the third person, and 12 to 14 for the fourth person. This equals 64 to 68 square feet, multiplied by 1.5 gallons of storage capacity, which equals 96 to 102 gallons of storage. Because you might not be able to find a 96-gallon tank, you may want to get a 120-gallon tank to be sure to meet your hot water needs.

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Recommended Add-ons

The following items are not included in the package, but will be useful for your installation:

Recommended Add-Ons :
Part#
Description
Non-Toxic Propylene Glycol, 5 Gallons For Freezing Climates - 5G Propylene Glycol
UT Solaflex 6', 3/4" Thick for 3/4" Pipe
Appropriately Sized Pipe Insulation
2-Conductor Shielded Wire for DHW Sensors
Shielded Sensor Wire
AET 1/2" Coolie Cap & Flashing set (1 pr.)
Coolie Caps OR Neoprene Seals
Honeywell Mixing Valve 3/4" Sweat Union
Mixing Valve
5 GPM Flow Meter Flow Meter
AET Bolt-on/Strap-on Sensor, 10K Thermistor Screw-in Immersion Sensor
IMC Eagle II Data Port Adapter Eagle 2 Data Port Adapter
Solar Water Heating, Comprehensive Guide Solar Water Heating, Comprehensive Guide

 

 

 

Alternate Energy Technologies LLC


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