Apricus AP series User manual

AP Solar Collector
Installation & Operation Manual
International Edition - V16 - May 2013
Delivering Sustainable Hot Water Solutions

Contents
...................................................................................................1. Important Information!3
............................................................................................................................................1.1. Scope of Manual!3
.............................................................................................................................................1.2. Local Standards!3
......................................................................................................................................1.3. Authorized Person(s)!3
.....................................................................................................................1.4. Collector Dimensions & Weights!3
........................................................................................................................................1.5. Naming Convention!4
..........................................................................2. Transport, Unpacking and Inspection!4
........................................................................................................................................2.1. Safe Transportation!4
...........................................................................................................................................2.2. Component Lists !4
......................................................................................................2.3. Tube & Heat Pipe Unpacking & Inspection!4
.......................................................................................................................2.4. Frame Unpacking & Inspection!5
..............................................................................................................3. System Design!5
...............................................................................................................................................3.1. System Design!5
..........................................................................................................................................3.2. Collector Direction!5
............................................................................................................................................3.3. Installation Angle!5
...............................................................................................................................................3.4. Collector Plane!5
...................................................................................................................................................3.5. Avoid Shade!5
...........................................................................................................................3.6. Collector and Tank Location!6
...........................................................................................................................................3.7. Pipe Connections!6
...............................................................................................................................3.8. Pipe Size and Flow Rates!6
.......................................................................................................................................3.9. Heat Transfer Fluids!6
...............................................................................................................................3.10. Solar Controller Settings!7
..................................................................................................................................3.11. Correct System Sizing!7
.........................................................................................................................3.12. Stagnation and Overheating!7
...............................................................................................3.13. Pressure and Temperature Control and Relief!7
.........................................................................................................................................3.14. Freeze protection!8
...............................................................................................................................................3.15. Wind Loading!8
...................................................................................................................................................3.16. Snow Load!8
.............................................................................................................................................3.17. Hail Resistance!8
......................................................................................................................................................3.18. Lightning!8
.......................................................................................................4. Collector Mounting!9
...............................................................................................................................................4.1. Frame Material!9
...........................................................................................................................4.2. Frame Track & Leg Spacing!9
.........................................................................................................................4.3. Frame Component Diagrams !9
.........................................................................................................................................4.3. Galvanic Reaction!15
......................................................................................................................................4.4. Installation Planning!15
.............................................................................................................................4.5. Frame Assembly Process!15
.......................................................................................................4.6. Manifold and Bottom Track Attachment!15
........................................................................................................................................4.6. Angled Frame Kits!15
............................................................................................................................4.7. Roof Attachment Strength!16
...............................................................................................................................................4.8. Wall Mounting!16
......................................................................................................5. Piping Connection!16
................................................................................................................5.1. Collector Connection to Plumbing!16
...................................................................................................................................5.2. Temperature Sensors!16
..............................................................................................................................................5.3. Pipe Insulation!17
......................................................................................................................................................5.4. Air Purge!17
............................................................................................................................................5.5. Pump Selection!17
.......................................................................................6. Evacuated Tube Installation!19
.......................................................................................................................6.1. Tube & Heat Pipe Preparation!19
...........................................................................................................................6.2. Tube & Heat Pipe Insertion!19
.............................................................................................................................6.3. Post Installation Cleaning!20
...............................................................................................7. Post Installation Check!21
...............................................................................................................8. Maintenance!22
.......................................................................................................................................................8.1. Cleaning!22
......................................................................................................................................8.2. Other Components!22
...........................................................................................................................8.3. Broken Tube Replacement!22
......................................................................................................................................................8.4. Insulation!22
...................................................................................................................................8.5. Draining the Collector!23
......................................................................................................................................8.6. Other Components!23
..........................................................................................................9. Troubleshooting!24
.................................................................................................................10. Disclaimer!25
.............................................................................11. Manufacturer’s Limited Warranty!26
..........................................................................................12. Installation Record Form!27
Apricus Solar Collector Installation and Operation Manual - International Edition
Copyright ©2013 – Apricus Solar Co., Ltd A11-01.1.1-PB-V16 Page 2 of 27

⚠WARNING
Indicates important information that must be followed to avoid potentially hazardous situations
that could result in death, serious injury, or substantial property damage.
1. Important Information
1.1. Scope of Manual
a) This manual pertains only to the installation and operation of the Apricus AP evacuated tube solar collector.
Details for the installation, operation and maintenance of the complete solar system components should be
provided separately by their respective manufacturers.
b) This manual is primarily a reference document for installation officers, as the solar collector is not permitted to be
installed by non-authorized persons.
1.2. Local Standards
Installation must be completed in accordance with all relevant local standards and regulations.
1.3. Authorized Person(s)
a) The term “authorized person(s)” used throughout this document refers to a suitably qualified professional, who
holds relevant industry licenses or certificates required for the work completed during the installation process.
b) Installation may only be completed by authorised persons.
c) Unless otherwise specified in section 3, no part of the Apricus solar collector may be inspected, repaired or
maintained by anybody other than an authorized person(s).
1.4. Collector Dimensions & Weights
Not all models listed below are available in all markets.
Collector Size
10 tubes
18 tubes
20 tubes
22 tubes
30 tubes
Overall Length 1
2005mm / 80”
2005mm / 80”
2005mm / 80”
2005mm / 80”
2005mm / 80”
Overall Height
136mm / 5.35” (manifold only)
154mm / 6.06” (manifold + standard frame)
136mm / 5.35” (manifold only)
154mm / 6.06” (manifold + standard frame)
136mm / 5.35” (manifold only)
154mm / 6.06” (manifold + standard frame)
136mm / 5.35” (manifold only)
154mm / 6.06” (manifold + standard frame)
136mm / 5.35” (manifold only)
154mm / 6.06” (manifold + standard frame)
Overall Width 2
796mm / 31.3”
1356mm / 53.4”
1496mm / 58.8”
1636mm / 64.4”
2196mm / 86.4”
Aperture Area 3
0.94m2/ 10.1ft2
1.69m2/ 18.2ft2
1.88m2/ 20.2ft2
2.07m2/ 22.3ft2
2.83m2/ 30.4ft2
Gross Area
1.59m2/ 16.95ft2
2.72m2/ 29.2ft2
3m2/ 31.8ft2
3.28m2/ 35.3ft2
4.4m2/ 47.3ft2
Gross Dry Weight
(Standard SS Frame)
35kg / 76.5lb
57kg / 152.4lb
63.4kg / 139.5lb
71.3kg / 157lb
95kg / 208.5lb
Fluid Capacity
310ml / 10.5floz
502ml / 17 fl oz
550ml / 18.6 fl oz
600ml / 20.3 fl oz
790ml / 26.7 fl oz
Max Operating Pressure 4
8bar / 800kPa
8bar / 800kPa
8bar / 800kPa
8bar / 800kPa
8bar / 800kPa
Tilt Range
20-80o
20-80o
20-80o
20-80o
20-80o
Max Snow Load
300kg/m2/ 60lbs/ft2
300kg/m2/ 60lbs/ft2
300kg/m2/ 60lbs/ft2
300kg/m2/ 60lbs/ft2
300kg/m2/ 60lbs/ft2
Max Wind Speed 5
208km/h / 130mph
208km/h / 130mph
208km/h / 130mph
208km/h / 130mph
208km/h / 130mph
1. Length of frame front track; """"""
2. Width of manifold (not including inlet/outlet ports); "
3. Aperture = Inner diameter of outer glass tube x exposed tube length ""
4. Pressure relief valve may be rated at 850kPa.
5. Refer to installation guidelines for collector mounting frame and consult mechanical engineer and local regulations before
completing an installation in high wind area.
Apricus Solar Collector Installation and Operation Manual - International Edition
Copyright ©2013 – Apricus Solar Co., Ltd A11-01.1.1-PB-V16 Page 3 of 27

1.5. Naming Convention
Refer to the Apricus product catalogue for complete details of all product and names. Below are explanation of the
manifold, collector and frame kit naming which are covered in this manual.
1.5.1. Manifold & Collector Naming
Naming Format: APSE - AAAA - BB - CCC
AAAA "COMP = complete collector including manifold, standard frame and evacuated tubes
"KIT = manifold and standard frame (no evacuated tubes)
BB "Material of the frame: SS = Stainless Steel, AL = Aluminium
CCC"Number of evacuated tubes: 10T, 18T, 20T, 22T or 30T
e.g. APSE-COMP-SS-30T = Complete 30 tube collector with stainless steel standard frame.
APSE-KIT-AL-20T = 20 tube manifold and aluminium standard frame
APSE-30T = 30 tube manifold only
1.5.2. Mounting Frame Kit Naming
Naming Format: APFR - AAA - BB - CCC - DDD - EEE
AAA "KIT = Indicates an angle frame assembly. No KIT indicates a single component or sub-assembly.
BB "Material of the frame: SS = Stainless Steel, AL = Aluminium
CCC"Frame Style: STD = Standard, UF = U Foot, RR = Roof Rail, RF = Round Foot, RT = Roof Track
DDD"Angle of the frame: 10D, 30D, 45D or 30<60D (adjustable angle)
EEE"Number of evacuated tubes: 10T, 18T, 20T, 22T or 30T
e.g. !APFR-KIT-SS-UF-30D-20T = 20 tube stainless steel 30oangle frame with U feet attachment
"APFR-KIT-AL-RR-45D-30T = 30 tube aluminium 45oangle frame with roof rail attachment
Refer to section 4 for more information on frames and mounting.
2. Transport, Unpacking and Inspection
2.1. Safe Transportation
Evacuated tube and manifold boxes should be handled with care when transporting to avoid breakage.
a) If standing boxes on end, adhere to the direction arrows.
b) If lying boxes down, ensure the surface is flat.
c) Adhere to the markings on the number of boxes that may be stacked.
d) Do not stack any heavy or sharp objects on top of the boxes.
e) Always secure boxes in place to avoid bouncing or sliding around during transport.
2.2. Component Lists
a) Review the components lists included in the component boxes. If any components are missing, or additional
parts are required, contact the local supplier.
2.3. Tube & Heat Pipe Unpacking & Inspection
a) Open the tube box(es), which contain the evacuated tubes with heat pipes inserted. Check to make sure the
evacuated tubes are all intact, and the bottom of each tube is still silver coloured. If a tube has a white or clear
bottom, it is damaged and should be replaced. The heat pipe should be removed from the damaged tube and
inserted into a replacement tube. Replacement tubes are available from your local Apricus dealer who supplied the
solar collector.
e) Heat pipes are bright and shiny when newly manufactured, but will dull and may form dark-grey surface
discoloration over time. This is due to mild surface oxidation (when exposed to air) and is normal and does not
affect the integrity of the heat pipe.
d) Do not remove and/or expose the tubes to sunlight until ready to install, otherwise the heat pipe tip will become
very hot, and may cause serious skin burns. The outer glass surface will not become hot.
Apricus Solar Collector Installation and Operation Manual - International Edition
Copyright ©2013 – Apricus Solar Co., Ltd A11-01.1.1-PB-V16 Page 4 of 27

e) Apricus does not warrant the tube or heat pipes against failure as a result of damage incurred during transport or
installation.
⚠WARNING
•NEVER TOUCH THE INSIDE OF THE EVACUATED TUBE OR HEAT PIPE TIP AFTER
EXPOSURE TO SUNLIGHT.
•WEAR THICK LEATHER GLOVES IF HANDLING A HOT HEAT PIPE.
•WEAR SAFETY GLASSES AT ALL TIMES WHEN HANDLING THE GLASS TUBES
2.4. Frame Unpacking & Inspection
a) Unpack the standard frame that is provided together with the manifold. If an angled frame kit is being used,
those components will be packed separately from the manifold. See section 4 for standard frame diagram.
b) Depending on the roof surface, rubber pads, roof attachment straps, round feet, roof rails or U feet may be used
to attach the standard frame to the roof. These components are supplied separately from the standard frame.
3. System Design
3.1. System Design
System design should be completed prior to commencing installation. Solar collectors need to be installed correctly
to ensure high efficiency, and most importantly, safe and reliable operation. Please seek professional advice for the
design and installation of seek solar heating system. Only authorized installers are permitted to install the solar
collector. Apricus does not provide warranty coverage and will not be held liable for any damage to person or
property that results from solar collectors that are installed by unauthorized persons.
3.2. Collector Direction
a) The collector should face the equator, which if in the northern hemisphere is
due South, and southern hemisphere is due North.
b) The collector will still work even facing at angles East or West of the equator
direction but a reduction in output will result (depending on location and system
configuration). The diagram to the right provides a rough guide.
3.3. Installation Angle
a) For optimal annual solar output, install the collector at an angle equal to the
location’s latitude. An angle of +/- 10ois acceptable, and will not greatly effect output.
b) If the system is likely to exceed demand in the summer, install the collector at an angle
15-20o greater than the latitude of the location which will help reduce summer output and
maximise winter output.
E.g. Latitude of 30o, install at 45-50o.
c) The collector must be installed within the range of 20-80o to ensure optimal operation
of the heat pipes.
3.4. Collector Plane
a) The collector manifold is normally installed on the flat
horizontal plane, but may be installed at an angle such as
when installed sideways on a pitched roof.
b) The collector must not be installed up-side-down (tubes
pointing upwards) or with tubes lying horizontally, as the heat
pipes will not function.
3.5. Avoid Shade
a) Collectors should be located so that shading does not occur for at least the 3 hours either side of 12 noon local
time.
b) Partial shading due to small objects such antennas and small flues, is not of great concern.
W E
↓5% ↓5%
↓15%↓15%
20o
80o
✖
✖
0o
✓✓✖ ✖
Apricus Solar Collector Installation and Operation Manual - International Edition
Copyright ©2013 – Apricus Solar Co., Ltd A11-01.1.1-PB-V16 Page 5 of 27

3.6. Collector and Tank Location
a) The collector should be positioned as close as possible to the storage tank to avoid long pipe runs.
b) The storage tank should be located as close as possible to the most frequent hot water draw off points in the
building.
3.7. Pipe Connections
a) Depending on your location the AP solar collector may be provided with one of the following port configurations:
•22mm OD copper pipe, compatible with standard olive compression or o-ring fittings.
•Flared copper pipe with union-nut and brass connector provide a ¾” M BSP thread.
3.8. Pipe Size and Flow Rates
a) As a general rule piping should be chosen to achieve a maximum flow speed of 1m/s / 3.3ft/s. The diagram
below shows recommended pipe diameter (DN nominal pipe size) and maximum flow rate per collector.
b) Maximum total flow-rate through any collector is 15L/min / 4gpm (~1m/s)
c) The pipe, pump, valve and fittings on the solar line must be rated to at least 110oC / 230oF, and if within 2m / 6ft
of the collector, rated for high temperatures of >200oC / 392oF.
d) A maximum of 3 x AP solar collectors may be connected in series with a straight (non-flexible) connector. For
more than 3 collectors in series a flexible connection must be used every 3 collectors.
e) As many as 10 x AP-30 solar collectors may be connected in series as long as flexible connectors are used and
maximum flowrate limit is adhered to, as outlined above.
g) Apricus does not warrant the collector against damage resulting from poorly managed header expansion and
contraction.
3.9. Heat Transfer Fluids
a) In regions where freeze protection is not a concern, water is the most appropriate heat transfer fluid. Water must
be potable rated (suitable for drinking) if the system is direct flow.
b) In all cases the water or other type of heat transfer fluid must meet the following quality requirements:
Total dissolved solids "" < 600 p.p.m."" " Total hardness "" < 200 p.p.m.
Chloride"""""< 250 p.p.m. "" " Free Chlorine"" < 5 p.p.m
Magnesium"" " " < 10 p.p.m."" " Sodium"" " < 150 p.p.m
Electrical conductivity!! < 850 µS/cm!! ! pH!! ! ! 6.5 - 8.5
c) When using a direct flow system is used in an area with hard water (high mineral content), scale may gradually
form in the solar collector loop, gradually reducing performance, increasing pressure drop, and ultimately rendering
the system inoperable (due to flow restriction). In such regions, a water treatment system should be installed, which
0
10
20
30
40
50
60
12345678910 15 20
Flow Rate L/min
# AP-30 Collectors
DN15
DN20
DN25
DN32
DN40
Apricus Solar Collector Installation and Operation Manual - International Edition
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either removes the scale forming minerals, or prevents formation of a scale layer.
d) In regions where freeze protection is required, it is advisable to use a closed loop system with a non-toxic grade
polypropylene glycol used as the heat transfer liquid. This liquid should be used directly, or mixed with water as per
the manufactures instructions. Periodic inspection of the glycol should be completed (annually), and replaced if
necessary ensuring that the liquid mets the requirements outlined in (b) above. Please refer to the guidelines
provided by the glycol manufacturer regarding replacement times.
e) Check with local regulations regarding the use of heat transfer fluids as some regions require precautions such as
dual wall heat exchangers, back-flow preventers or specific solar system pressure operating levels in order to
prevent drinking water contamination.
3.10. Solar Controller Settings
For solar controllers the following solar ON/OFF settings are usually appropriate:
•Delta-T ON = 8oC / 14oF
•Delta-T OFF = 2oC / 3.6oF
These settings may need to be altered slightly according to the location and system design. Refer to the controller
installation manual for more information.
3.11. Correct System Sizing
The solar collector should normally be sized to provide 90-95% of hot water requirements during summer period.
Depending on the location this will provide 60-80% annual contribution to domestic hot water.
3.12. Stagnation and Overheating
a) Stagnation refers to the condition that occurs when the pump stops running, due to pump failure, power
blackout, or as a result of a high tank temperature protection feature built into the controller, which turns the pump
off.
b) If the system is designed to allow stagnation as a means of preventing tank overheating, the collector and
plumbing in close proximity may reach temperatures of >200oC / 395oF; therefore components that may be
exposed to the high temperatures such as valves, plumbing or insulation, should be suitably rated.
c) For direct flow systems, if the system is allowed to stagnate, steam may form in the header (depending on the
system pressure). In such a system, a temperature relief valve or auto air vent should NOT be installed on the
collector outlet, as high temperature may damage the valve, and scale formation can rapidly block the vent hole.
The pressure and temperature relief valve on the tank may open to release pressure or heat as required. Under
such conditions the collector manifold will normally reach a maximum temperature of approximately 160oC / 320oF.
Any heat returning from the collector is generally not enough to cause a continued increase in tank temperatures
(i.e. heat input is less than tank heat losses). A crackling noise may be heard in the solar flow and return lines when
hot water is used, as the pressure in the system drops and steam forms, this is normal.
3.13. Pressure and Temperature Control and Relief
a) For open loop systems, the normal operating pressure should be <500kPa / 72.5psi via use of a pressure limiting
(pressure reduction) valve on the mains cold supply line.
b) For open loop systems, it is acceptable for the system design to allow the solar collector to stagnate to prevent
additional heating of the storage tank (i.e. pump stoppage once tank temperature reaches 80oC / 177oF). The
pressure relief valve must be able to release the pressure increase that occurs when the manifold stagnates, and
should be rated to meet the maximum possible heat output of the solar collector(s). Please see section 3.4
regarding insulation of piping for high temperatures, and section 2.2.3 regarding overheating.
c) For closed loop systems, the solar loop must operate at <500kPa / 72.5psi, and have an expansion vessel
installed to control liquid expansion. The system design MUST NOT allow stagnation of the collector as a standard
form of controlling tank temperature, unless the heat transfer fluid is rated for long term exposure to temperatures of
up to 200oC or steam back system operation allows the manifold to clear of heat trasnfer liquid during stagnation.
d) Any system design must provide means for allowing pressure release at no more than 850kPa, using a pressure
and or pressure and temperature relief valve (PTRV), in accordance with local regulations. THE RELIEF VALVE OR
DRAIN TUBE MUST NOT BE SEALED OR BLOCKED
e) If installed inside a building a safe-tray must be installed beneath the hot water tank to safely collect any water
expelled from the pressure and temperature relief valve.
Apricus Solar Collector Installation and Operation Manual - International Edition
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3.14. Freeze protection
Freeze protection must be implemented in any regions that experience freezing conditions at any time
throughout the year.
a) For areas with temperature not falling below –5oC / 23oF, simple low temp controller based freeze protection may
be used. (i.e. Pump circulates if the manifold temperature approaches freezing). If possible, backup protection in
the form of uninterrupted power supply (UPS) or drip valve (which opens to allow water to dribble out if power
supply is cut) should also be installed. It is also important that the tank is heated at least once daily (to the bottom)
to ensure there is heat to keep the solar loop from freezing.
b) For areas with temperatures below –5oC / 23oF, a closed loop filled with an anti-freeze mix can be used to provide
freeze protection. Please refer to propylene glycol manufacturer’s specifications about the temperature ranges the
liquid can withstand. See also 1.4 regarding water quality requirements. Anti-freeze liquids are normally required to
be potable water grade; please check with local regulations. The other option for cold temperatures is a drain back
systems whereby the collector drains empty of water each time the pump stops circulating.
c) Evacuated tubes are not susceptible to damage in cold weather, and Apricus heat pipes are protected against
damage that could result from the freezing of the water inside.
d) Apricus does not warrant the solar collector against freeze related damage.
3.15. Wind Loading
a) When installing the collector, wind loading must be considered.
b) The standard frame, and frames kits are all designed to withstand wind speeds of up to 208km/h / 130mph
without damage for installation angle of 45o and less. This wind speed corresponds to the mid range of Category 2
cyclones (US Saffir-Simpson Scale). For higher wind speeds additional frame components, lower installation angle
and reinforcement of roof attachment may be required. Collector mounting in high wind regions (>208km/h /
130mph) should be reviewed, and where required, approved in writing by a qualified engineer.
c) Refer to section 4 for specific roof attachment details for various frame options.
3.16. Snow Load
a) In areas prone to heavy snow falls the solar collectors should ideally be installed at an angle of 50o or greater to
help promote snow sliding off the tubes. In addition it is advisable to raise the front of the collector frame 15-20cm
off the roof surface as this allows snow to sit beneath the collector and also more easily blow away from under the
collector. See the picture to the right.
A front track extension (#FR-SS-FTEXT) can be used for this purpose.
b) The solar collectors are able to withstand a maximum snow loading of 300kg/m2/ 60lbs/ft2. Refer to local
regulations regarding snow loading guidelines.
3.17. Hail Resistance
a) Apricus glass evacuated tubes are able to withstand impact from hail up to 25mm /1” in diameter.
b) In areas prone to large hail (>∅20mm / ∅3/4”) it is recommended to install at an angle of 40o or greater to provide
optimum protection.
c) The solar collector can still function properly with one or more broken tubes, however a reduction in heat output
will result (depending upon how many tubes are broken). A broken tube should be replaced by authorised persons
only. Please refer to section 8.3 for more details on tube replacement.
3.18. Lightning
It is advisable to earth/ground the copper circulation loop of the collector to avoid lightning related damage, or
electrical safety issues.
Apricus Solar Collector Installation and Operation Manual - International Edition
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W
S
4. Collector Mounting
Apricus solar collectors are supplied with a standard frame, which is suitable for flush mounting on a suitably pitched
roof. For installation on low-pitched roofs, flat roofs or on walls, additional angle frame kits are available.
⚠WARNING
•All installations should only be completed on roofs that are in good condition and that can
structurally support the collector(s). The mounting points for the collector must always be
into structural members such as rafters, trusses or blocking.
•Ensure all roof attachment points are well sealed to avoid water leaks.
•Adhere to relevant local safety regulations when working on roofs.
4.1. Frame Material
Apricus offers two types of frame materials as follows:
•Stainless Steel: Suitable for most applications
•Anodised Aluminium: Stronger and more corrosion resistant than stainless steel, these frames are suitable for
high wind regions or environments that stainless steel is susceptible to “tea staining” discolouration (surface
corrosion).
4.2. Frame Track & Leg Spacing
Collector
S
W
10 tubes
490mm
796mm
18 tubes
1050mm
1356mm
20 tubes
1190mm
1496mm
22 tubes
665mm
1636mm
30 tubes
945mm
2196mm
4.3. Frame Component Diagrams
The Standard Frame comes standard with the manifold kit. Angled frame kits can also be ordered to raise the angle
of frame and there are various options for roof attachment. The following pages provide diagrams of frames kits
and optional roof attachment components.
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Apricus Solar Collector Installation and Operation Manual - International Edition
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SS Standard Frame (30 tube)
Bottom Track
(#FR-SS-BT-30T)
Front Track (#FR-SS-FT)
Tube Clips
(#FR-SS-TC[SS-BT])
Roof Rail (#FR-AL-RR)
attachment option
Round Foot (#FR-SS-RF)
attachment option
Rubber Pad
(#FR-SRPAD or FR-TRPAD)
attachment option
Horizontal Brace
(#FR-SS-HB)
Roof Strap
(#FR-SS-ST-__)
attachment option
U Foot (#FR-SS-UF)
attachment option
Round Foot (#FR-SS-RF)
attachment option
Roof Rail (#FR-AL-RR)
attachment option
Roof Track (#FR-AL-RT)
attachment option
U Foot (#FR-SS-UF)
attachment option
X Brace
(#FR-AL-XB-30T) Rear Leg (#FR-SS-RL-__)
(10D, 30D or 30<60D)
SS Angle Frame (30 tube)