Solar domestic hot water systems

Solar Patriot - 20 tube array

Drain back System
pre assembled
control panel Package

Includes all the major components in a preassembled, pressure tested, electrical tested package for high reliability.

Fail Safe drain back overheating or freezing design. Package includes:

Uses Water Only in solar collector.

1/8" steel angle frame, rustoleum coated.

Grundfos UP- 15 circulation pump on potable solar storage tank side and Grundfos UP-26 static head pump ( to 28 ft head ) on solar array manifold side.

13.8 gallon, foam insulation ( R-17 ), stainless steel drain back tank with sight glass flow meter.

Tank has immersion copper coil, Type K ( 1 mm wall ), 4.30 sq. ft. surface area heat exchange coil.

Digital thermometer reads both solar storage side and solar collector side.

Complete commercial grade NEC code wired control panel with differential controller and dual digital temperature display on potable and solar collector.

Uses silver soldered 3/4" type L copper pipe & unions for connections to solar array manifold and solar storage water tank

This package includes: SP-20 evacuated tube heat pipes & manifold with stainless mount rack; two roof penetration flashings; thermistors and sensors and wire cables; pump stand installation & reference manual and pump stand with stainless drain back tank integral HE coil and electrical control panel, dual pumps.

plumbingstand

photo of drain back stand, controls, 13.8 gallon HE coil tank as complete system ready to connect to vacuum tube collector manifold

Custom designed systems available---call or write for Quote.

SP-20 collector & drain back pump stand Kit:

Not including solar storage tank.


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Auto cad drawing of typical drain back system design with immersed heat exchanger ( requires Adobe Acrobat free reader program installed on your computer ) :

Drawing in PDF of typical drain back system design



Photovoltaic powered dc pump, closed loop anti freeze system design

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single collector installation in Green Bay, Wisconsin

Drawing in PDF of PV powered DC pumped system using internal HE tank

Solar domestic hot water PV powered collector kit package----
Pre assembled and plumbed package

Includes the following major components as per the drawing ( above link ):

I - Solar Patriot (tm) 1.2 kW solar thermal collector
with standoff brkts & PV mounting rails
II - Valve package: three valve bypass , fill / drain check valve assembly, 60 psi pressure relief valve, Amtrol #15 x tank, air vent, 2 dial thermometer, air vent assmbly, T/P valve, et. al.
III - Optional PV & pump package: 20 watt crystal framed PV module, SID 10 watt PV direct pump.
IV - 65 gallon solar storage tank with internal, double wall heat exchanger.
V - Solar storage tank plumbing assembly
VI - Optional: Btu meter, 2 sensors & pulse flow meter. $495
Essential components pkg. ( with out Btu metering ) NB: prices fluctuate frequently $4,590
pick up truck shipping within 300 miles $1.20 / mile
This kit package includes all the hard to find components. Does not include: 3/4" copper pipe, fittings, pipe insulation, fasteners, pipe hangers, propylene glycol anti freeze, solvents, etc. ( obtain locally ). If you have some trades help, then you can save a good deal of money by being a self installer.
Be a Lamp unto yourself

Solar domestic hot water AC powered collector kit package----
Pre assembled and plumbed package

Includes the following major component as above changed to AC pumped system design:

I - Grundfos UP-15 3 speed AC pump with flange valves
II - Differential controller / Btu meter $165
III - inline flow meter. $225
Essential components pkg. NB: prices fluctuate frequently $4,190
pick up truck shipping within 300 miles $1.20 / mile
This kit package includes all the hard to find components.Same as above PV package. Does not include: 3/4" copper pipe, fittings, pipe insulation, fasteners, pipe hangers, propylene glycol anti freeze, solvents, etc. ( obtain locally ).

Solar Patriot - 20 tube collector

Closed loop, pressurized pump
& control panel Package

Includes all the major components in a reassembled, pressure tested, electrical tested package for Hydronic in floor heating or domestic hot water system.

Includes:

1/8" steel angle frame painted with rustoleum Grundfos circulation pumps on both the potable and solar storage tank side. Solar side has dual valve fill and drain valve manifold.

Recommend minimum 50 gallon insulated solar storage tank.

Complete commercial grade NEC code wired control panel with differential controller and digital thermometer.

Uses soldered 3/4" type L copper pipe & unions for connections to solar array manifold and solar storage water tank.

Shown with flat plate copper/nickel heat exchanger for hydronic heating.
A stainless steel coaxial heat exchanger optional for use with propylene glycol anti freeze is available at additional cost.

Available with stainless steel coaxial, spiral heat exchanger or copper / nickel flat plate heat exchanger.

20 - Solar evacuated tube heat pipes & manifold with stainless mount rack; two roof penetration flashings; thermistors and sensors and wire cables

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photo of close loop pressurized pump stand, controls, as complete system ready to connect to vacuum tube collector manifold

Ships via truck. Custom designed systems available---call or write for Quote.

Collector & closed loop pump stand:

Quote due to custom design and type of heat exchanger (plus crating & truck)


Auto cad drawing of typical closed loop pressurized glycol solution system design ( requires Adobe Acrobat free reader program installed on your computer ) :

Drawing in PDF of typical closed loop pressurized system design


Reference reading for solar domestic water heating systems :

The Basics of Solar Hot Water see Home Power, Issue # 84, August /September 2001, by Ken Olson.

Drain back DHW see Home Power, Issue # 86, December 2001/ January 2002, by Tim Lane & Ken Olson

Heat Exchangers see Home Power, Issue # 92, December 2002 / January 2003, by Chuck Marken

Hydronic In-floor Heating Exposedsee Home Power, Issue #79, October / November 2000, by Ron Hyatt

These are available on CD from Home Power magazine and are superbly written and are "must-read" if you want to understand how to build or install yourself. Contact them through the link on index page.

The above Home Power magazine articles are now available on-line in the searchable Archives of HP. Go to www.homepower.com, home page and click on the green link: HP Archive . The cost for the entire issue is US$5 and beyond well worth the knowledge. Enjoy !

4. For a good on line tutorial see the Florida Solar Energy Center web pages:

http://www.fsec.ucf.edu/solar/install/dhwinstl/dhwinstl.htm

We also offer engineering design and architectural services built around these fine "Solar Patriot" collectors. Please see the About Us link -----about us

10/07