background image

16

© SOLARHOT 2006-2009

If you do not have access to the attc from underneath:

Peel back the shngles from the edge of the roof to determne where the roof deckng sheets 
are joned.  Make a chalk lne perpendcular to the roof slope that goes through that pont.

Now that you have identified a single rafter you should snap chalk lines parallel to your 

perpendcular lne (spaced to concde wth the rafters underneath) untl you have all of the 
rafters marked underneath the area where you wll be placng the collectors.
Usng your mountng feet placed over the ntersecton of your chalk lnes, mark where you wll 
drll your holes.  Drll a ¼” 2” deep where you have for each of the mountng feet.               Note: 

You want to maximize the space that you have between your feet on the upper and lower 

edge of the collector.  Dependng on your rafter spacng you wll be placng the mountng feet 
ether 32” apart under the collector or 24” apart under the collector.  Between the collectors 
use a sngle rafter as the spacng between mountng feet.

Once you have drilled for you mounting feet, inject roofing tar into each one of the drilled 

holes.

Using the mounting foot and 3/8-16 x 2.5” stainless steel lag screws, stainless steel flat 

washers, and stanless steel lock washers, place the foot over the pre-drlled holes.

Inject  roofing  tar  underneath  the  flat  washers  and  screw  the  foot  assembly  through  the 
roofing  material  to  the  rafter.   You  should  see  roofing  tar  ooze  out  from  underneath  the 

mountng foot.  Repeat ths process for all of the mountng feet.

Placing the collectors:

Pror to brngng the collectors to the roof you should sweat the followng tems on the collectors whle 
they are stll on the ground:

For a right to left flow (reverse for left to right):

• 

2 – 1” couplings or unions to the side(s) between the collectors

• 

1 – 1” pipe cap on the upper right header pipe of the collector 
to be mounted on the right

• 

1 – 1” pipe cap on the lower left header pipe of the collector to 
be mounted on the left

• 

1”- ¾” elbow (elbow pointed straight down) lower right header

• 

1”- ¾” elbow (elbow pointed straight down) on the upper left 

header 

Wth the mountng feet n place, place the collectors over the mountng feet securng the bottom of the 
collectors wth the mountng feet.  Slde the collectors together so the unons are touchng.  Wth the 

1”x3/4” elbows, mark where the piping should penetrate the roof.  Move the collectors and drill the roof 

penetratons for both the ncomng and outgong copper ppe.

1.

2.

3.

4.

5.

6.

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...

Страница 2: ......

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...

Отзывы: