SUNFLOWER SFB-AL Series User manual

Version 11.03
For our present, For their future.

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SFB-AL (SF-B) series Installation Manual
All-glass Evacuated Tubular Solar Collector with Heat Pipe
Contents
1. SOLAR COLLECTOR SIZE AND WEIGHT............................................................................................................................. 3
2. HOW TO TRANSPORT AND CARRY IT................................................................................................................................. 3
3. INSTALLATION............................................................................................................................................................................ 4
3.1 UNPACK AND INSPECTION ...................................................................................................................................................... 4
3.2 FIX THE FRAMES AND MANIFOLD BOX........................................................................................................................................ 5
3.2.1 Put Side Rails ................................................................................................................................................................... 5
3.2.2 Fix the Manifold ............................................................................................................................................................... 6
3.3 FIX THE HORIZONTAL BAR............................................................................................................................................................ 8
3.4 FIX SOLAR COLLECTOR ON YOUR SLOPING ROOF........................................................................................................................ 9
3.4.1 Sloping roof ....................................................................................................................................................................... 9
3.4.2 Flat roof ............................................................................................................................................................................ 12
3.5 INSTALL THE TUBES .................................................................................................................................................................... 14
4. LIGHTNING PROTECTION..................................................................................................................................................... 16
5. HOW TO CONNECT COUPLE OF COLLECTORS? ............................................................................................................. 16
6. CONNECTION OF THE COLLECTOR FIELD TO THE HEAT TRANSFER CIRCUIT................................................... 17
7. DIMENSIONS OF PIPE CONNECTIONS............................................................................................................................. 18
8. HEAT TRANSFER MEDIA........................................................................................................................................................ 19
9. PRECAUTIONS........................................................................................................................................................................... 19
10. MAX. WORKING PRESSURE............................................................................................................................................. 19
11. PRESSURE DROP.................................................................................................................................................................. 20
12. INSTALLATION ANGLE....................................................................................................................................................... 20
13. WIND AND SNOW ACCUMULATION.............................................................................................................................. 20
14. MAINTENANCE REQUIREMENTS.................................................................................................................................... 20
14.1 CLEANING................................................................................................................................................................................. 20
14.2 LEAVES...................................................................................................................................................................................... 20
14.3 BROKEN TUBE .......................................................................................................................................................................... 21

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1. Solar collector size and weight
Specification size(mm)
Item No. Qty. of
solar
tubes
Diameter of
solar tube
Length
of solar
tube
Weight a b c d e
SFB104715-AL 10pcs Ø 47mm 1.5M 25 kg 825 655 1650 1263 973
SFB204715-AL 20pcs Ø 47mm 1.5M 49 kg 1475 1305 1650 1263 973
SFB304715-AL 30pcs Ø 47mm 1.5M 68 kg 2125 1955 1650 1263 973
SFB105818-AL 10pcs Ø 58mm 1.8M 36 kg 915 745 1960 1501 1172
SFB155818-AL 15pcs Ø 58mm 1.8M 55 kg 1290 1120 1960 1501 1172
SFB205818-AL 20pcs Ø 58mm 1.8M 72 kg 1665 1495 1960 1501 1172
SFB305818-AL 30pcs Ø 58mm 1.8M 108 kg 2415 2245 1960 1501 1172
2. How to transport and carry it
Please carry the tank horizontally. It’s forbidden to carry it vertically.
Please carry the glass tubes carefully and horizontally. It’s forbidden to carry them vertically.
Please read the whole manuals carefully
before assembly!

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3. Installation
3.1 Unpacking and inspection
Total quantity
SFB*4715-AL SFB*5818-AL
No. Name
10 15 20 30 10 15 20 30
1 Manifold box 1 1 1 1 1 1 1 1
2 Thermal silicon grease 1 1 1 1 1 1 1 1
3 Decoration cover 10+1 15+1 20+1 30+1 10+1 15+1 20+1 30+1
4 Vertical bar 2 2 2 3 2 2 2 3
5 Aluminum horizontal bar 1 1 1 1 1 1 1 1
6 Black nylon screw cup 10+1 15+1 20+1 30+1 10+1 15+1 20+1 30+1
7 Screw 1 PKG 1 PKG 1 PKG 1 PKG 1 PKG 1 PKG 1 PKG 1 PKG
8 Heat Pipe 10 15 20 30 10 15 20 30
Note: In above form, the number after “+” means the quantity of extra free compensation parts.
Standing frame (optional accessory)
Total quantity
SFB*4715-AL SFB*5818-AL
No. Name
10 15 20 30 10 15 20 30
1 Rear foot 2 2 2 3 2 2 2 2
2 Diagonal bracing 2 2 2 3 2 2 2 2
3 Cross bar 2 2 2 4 2 2 2 4
4 Foot pad 4 4 4 6 4 4 4 6
5 Screws 1 PKG 1 PKG 1 PKG 1 PKG 1 PKG 1 PKG 1 PKG 1 PKG

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3.2 Assemble the Frames and Manifold Box
3.2.1 Side Rails
Place the 2 side rails on a flat surface such as floor, as shown below:
Fig 3.1

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Please pay attention to distinguish the end and top of the vertical bar. The end-connect to bottom rail has an angle
as shown in the following picture:
Fig 3.2
3.2.2 Assemble the Manifold
a) Put the manifold on the two vertical bars, and find the holes for screws.
Fig 3.3
b) Assemble the manifold to the holes on the vertical bars using the screws provided. See the following pictures.

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Fig 3.4
Fig 3.5

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3.3 Assemble the horizontal bar
a) You will find three holes at each end of the horizontal bar.Put the screw and nuts through the middle hole and
place a black cover on the screw. It prevents the tube’s cups from sliding off the horizontal bar.
Fig 3.6
b) Assemble the horizontal bar on the vertical bar using the screws provided, as shown in Fig 3.7
Fig 3.7

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3.4 Assemble the solar collector on your sloping roof
3.4.1 Sloping roof
If your roof is sloping, mounting straps will be a useful accessory. You can buy them from us or you could also make
them by yourself in a similar shape or function. Please make sure they are strong enough. Our mounting straps are
made of SUS304 stainless steel with a 1mm thickness.
Fig 3.8
Fig 3.9
Installation steps:
a) Select a suitable location on the roof for the collector. In the northern hemisphere, the collector should face due
south, at an angle to the ground equal to the latitude. For example, latitude of 49 degrees would use a collector
angle of about 49 degrees, plus 10 degrees to give best heating in winter.
b) Put the solar collector on the roof to choose some points to anchor the screws. These screws are used to fix the
mounting straps on the roof. Remove roof tiles at the corners of an area large enough to fit the collector.
c) Bend the mounting straps according to the height of the tiles and the location of the long-round hole on the
vertical straps. Bend the mounting straps through the gap of two tiles, and secure it to the roof supports using
the screws. Secure all remaining all mounting straps in this way. After that, put solar collector on the roof and
adjust the location so that you can fix vertical bar to the bent mounting straps using screws. Bolt the solar
collector vertical bar frame to the mounting straps. (See Fig 3.10~3.13).

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Fig 3.10
Fig 3.11