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USA: R.W. Beckett Corporation • ph: (800)645-2876 • fax: (440)327-1064 | Canada: R.W. Beckett Canada Ltd. • ph: (800)665-6972 • fax: (519)763-5656 | www.beckettcorp.com

CORPORATION

By Dan Gretsch, P.E.

Guide to SelectinG and inStallinG a

Renewable energy Made Simple.

olar

ater

yStem

Содержание solarH2ot

Страница 1: ...800 645 2876 fax 440 327 1064 Canada R W Beckett Canada Ltd ph 800 665 6972 fax 519 763 5656 www beckettcorp com CORPORATION By Dan Gretsch P E Guide to Selecting and Installing A Renewable Energy Mad...

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Страница 3: ...do this to protect the jobs of the workers in the country The policy has the added effect of increasing the cost for many goods since foreign competition is virtually eliminated as a result of the hi...

Страница 4: ...ing in the section Siting of Collectors Third people don t know where to go to get one installed This is a very real concern There are two websites www findsolar com and www sourceguides com that will...

Страница 5: ...and store the sun s energy so you don t have to think about it A properly installed system should be unnoticeable to the hot water users in the house with a few exceptions First we generally use large...

Страница 6: ...12 pitch roof with roughly the same annual performance I would have achieved had I mounted them at the ideal angle The general rule states that if your collectors are mounted at an angle less than yo...

Страница 7: ...e moving in the wrong direction if you have to cut down trees to get there I can help with this a little The BP solar website can show you that the environmental benefits of installing a system equals...

Страница 8: ...ft This rule of thumb doesn t take into consideration the quality of the solar collector that you use It is possible to have a solar collector that only produces 2 3rd of the potential energy because...

Страница 9: ...hot water needs We have covered the guidelines for sizing collectors as well as the storage tank There are a couple of overriding factors to consider when trying to size an installation It will take...

Страница 10: ...ess steel heat exchanger along with the pumps and valves necessary to drive a two loop solar system The heat exchanger and pumps are sized to meet the heat output of up to 6 solar collectors so one So...

Страница 11: ...of a heat exchanger The second loop circulates your potable water on the other side of the heat exchanger by using either forced circulation with a pump or passive circulation through convection Basi...

Страница 12: ...oop and the collector loop worse you will require the large pump to run for a longer period of time to put the heat in storage So the argument that you have less pump horsepower is correct although yo...

Страница 13: ...duces maintenance difficulties down the road Glycol system If your site requires that you install a glycol system you need to consider a number of the options presented in the section on drainback sys...

Страница 14: ...r considerations that might be worth noting There are tanks on the market today that have ceramic coated heat exchanger coils immersed in the tank These tanks eliminate the need to clean the heat exch...

Страница 15: ...rming flat plate collectors as measured by the SRCC Section 2 Installing a Solar Hot Water System Chapter 5 Piping Depending on whether you are installing a glycol system or a drainback open loop syst...

Страница 16: ...hrough the receiver pipe and ring you will sweat the ring to the pipe to eliminate any chance of leaking The Beckett SolarHot Advantage The Platinum series of collectors includes unions with gaskets t...

Страница 17: ...s the brains of the solar hot water system In order for a differential control to work it has two sensors wired to the control The first sensor the collector sensor should be attached to the pipe lead...

Страница 18: ...ies pumps looks like this This graph shows that an Astro 70 would push 4 GPM at 23 feet of head See the chart below to find which pumps are appropriate for which application Different manufacturers pu...

Страница 19: ...The collectors must be mounted with the headers parallel to the ridgeline for a drainback installation Note You want to make sure that these chalk lines are inclined down the slope at least 1 16 per...

Страница 20: ...nting foot and 3 8 16 x 2 5 stainless steel lag screws stainless steel flat washers and stainless steel lock washers place the foot over the pre drilled holes Inject roofing tar underneath the flat wa...

Страница 21: ...enough slope on all of your components to allow proper drainage Glycol 1 Using the shraeder valve on the bottom of the expansion tank release the pressure to 30 lbs 2 Open both boiler drains on the c...

Страница 22: ...ification 1 Use a special solar dip tube on the return of any heated water back into the tank This dip tube has a closed end and multiple perforations down the length This allows the return water to s...

Страница 23: ...at they possess they don t slough frost or snow well at all When you combine these published test results you end up with a conundrum Evacuated tube collectors outperform flat plate collectors during...

Страница 24: ...lar thermal systems http www ncsc ncsu edu North Carolina Solar Center Dedicated to research and promotion of solar energy www noaa gov The National Oceanic and Atmospheric Administration A government...

Страница 25: ...responsible for improving the efficiency in the corporations worldwide operations In this role he was responsible for improving the efficiency and driving out waste in 14 manufacturing locations worl...

Страница 26: ...65 6972 fax 519 763 5656 www beckettcorp com CORPORATION Renewable Energy Made Simple SolarHot Platinum Collector Tempered and patterned glass to reduce reflection and maximize durability and strength...

Страница 27: ...the side of a standard hot water tank Large surface area for heat transfer State of the art digital control Our highly efficient heat exchange process means the pumps run less saving you even more mon...

Страница 28: ...289 Elyria OH 44036 Ship 38251 Center Ridge Rd North Ridgeville OH 44039 Canada R W Beckett Canada Ltd Unit 3 430 Laird Road Guelph Ontario N1G 3X7 www beckettcorp com Form No 61740 R00 Printed in the...

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