T Type (Concrete) PV Mounting Structure Installation
Contents
1. 10 SOEAR MODUPBBES db bedeutete de bes dacs du asp hovers Gases e ava tti Peut 10 ARRAYS TR CT RE A a P erepta etc i re n t p v Dire Paten oda 10 SEDES ntn nba e ep ira deemed been ane rade rette et dede e ee fe POE e e be dates etae Port vob es 10 Page 2 of 10 Installation and user manual SKT Low level Structures INTRODUCTION This manual provides a basic guide to the assembly of the low level support structure it is recommended that you read through the manual before attempting to assemble the structure taking note of the health amp safety issues detailed below Typical three module solar array on a T3 type structure HEALTH amp SAFETY Structure Assembly Construction must not be attempted in high winds Care must be taken in lifting structural members and in working at high levels Protective headgear should be worn Electrical Interconnection Potentially lethal voltages can be developed from arrays Take the following precautions Electrically isolate the array from the rest of the system The modules should be shaded from the sun by opaque sheeting before any electrical connections are made to the sub array junction boxes or at the control unit Page 3 of 10 SKT Installation and users Manual Low level Structures INSTALLATION SEQUENCE Part Identification Refer to the drawings and photographs within this manual to familiarize yourself with the components of this structure prior to a2. moving the clamp and then re tightening the grub screw Figure 6 6 depicts the positions of components after assembly ear Leg Tee Slide Clamp S f Dimensior lt i ear Stru Tee Clamp 4 4 lt Front Le 2 x X i _ Upper Sut dule Array Tub ace dowr Figure 6 6 T structure final assembly Page 8 of 10 Installation and user manual SKT Low level Structures Front legs Fit the front legs into each of the right angle clamps on the lower sub array tube Tighten the grub screws using the Allen key to secure the tubes Rear legs Fit the rear legs into the right angle clamps on the lower sub array tube Again the grub screws should be tightened with the Allen key to secure Slide Clamps Now add the slide clamps to the rear legs and set to approximate tilt angle required the tilt angle must be checked when in position Rear Struts Insert each rear strut between the slide clamp and the corresponding tee clamp on the upper sub array tube Tighten the grub screws using the Allen key Feet Secure the four swivel bases feet to the ends of the front and rear legs Placing the array Turn the array over and place it on its feet as depicted on page 3 Installation of the Array onto a Bolted Foundation The array must be secured to foundations Parabolts expanding are fitted as illustrated in Figure 6 7 following steps 1 to 4 It is best to drill and fit only one para
3. SKT type structures Low Level Support Structure Installation amp Users Manual Low Level ground mount support structure kit SKT Installation and users Manual Low level Structures INTRODUCTION CEP 3 HEALTH amp SAFETY a cocoa d eee ess vedo e esa aere ue e edu oed e Sa ia ga ERR Ren 3 STRUCTURE ASSEMBLY 7 eene bee ivo e erede ELECTRICAL INTERCONNECTION INSTALLATION SEQUENCE PARTJIDENTIFICATION Ne Oe a REUS 4 WHAT S INVOBEVEDII ene REIR ended iste e dei oe Aon tor eter 4 ASSEMBLY OF SUB ARRAYS oes cccccsssecnscsccecssccossacsscsessasceseseosaccosecsccosesssosessssededssaveocceosessecsessesuceSbescascccedeseocsse 5 MODULE Edd oi E V ON RETRO mm SUB ARRAY TUBE PREPARATION eere eene nennen rennen siete seen ente tenentis ern seres eate earns enn SUB ARRAY ASSEMBLY EXRTHING eoe peret ASSEMBLY OF SUPPORT LEGS TO THE SUB ARRAY FRONT SEGS 9 REAR LEGS oet lene de tie ets SLIDE CLAMPS REAR STRUTS EB E DELE S TM PLACING THE ARRAY INSTALLATION OF THE ARRAY ONTO A BOLTED FOUNDATION cccccssssscsssscsesccsssecessssssessccsssesesscsessecesssssssssccasseesess 9 COMMISSIONING Em 10 SUPPORT STRUCTURE nein bride ite 10 MAINTENANCE E
4. T Figure 6 4 Upper tube assembly detail Page 7 of 10 Solar module frame N 1274 CLED M8 Nut TD Ga 7 Z RNA NNE Stainless steel N module clamp Sub array tube Er LY M8 washer L M8 Spring washer us 1 7 8 30 Hex set screw Ul SKT Installation and users Manual Low level Structures Insert 2 part joint into the ends of both poles as far as possible then tighten grub screw to Grub screw secure into place 2 Part pole joiner Sub array pole Figure 6 5 Pole joint details 3 module to 7 module kits only Earthing The module frames are earthed to one another through the stainless steel module clamps and the structure tubes When the structure assembly is completed the array structure should be earthed to ground using a suitable earth Use earth rods as required Assembly of the support legs to the sub array Ensure that the Tee clamps on the back of the array are in the correct position as shown in the detailed drawing at the back of this manual Their separation must correspond to the separation of the foundation points for the structure The position of the clamps is easily adjusted by loosening the grub screw using the Allen key supplied
5. bolt in each foot preferably the one that will be difficult to get at when the assembly is finally positioned Drill the holes 80mm deep with a 10mm masonry bit Place the sub array in position and mark out the other holes Remove the sub array drill the remaining holes and fit the parabolts Replace the sub array over the parabolts and fix down 1 Using a masonary bit 2 Clean out tl ole 5 Pass parabolt 4 Tighten up the nut drill a hole using the b ir into it through the foot a spanner The recommendec foot as a template into the hole witl torque is 2 3 the nut in place Ind gently tap Figure 6 7 Fixing of parabolts Page 9 of 10 SKT Installation and users Manual COMMISSIONING TESTS In order to ensure that the system has been properly installed and will function correctly the following tests should be performed immediately after installation Support Structure Check module fasteners are tight Check all structure fasteners are tight Check tilt angle is correct to within 2 Ensure array is within 5 of the azimuth specified Inspect for any damage to the galvanised steel work touch up with Galvafroid or similar zinc paint as required MAINTENANCE The following maintenance schedule should be followed at 12 monthly intervals However in some areas prone to excessive dust or bird deposits module cleaning could be necessary more frequently and ca
6. hen electrically connected as for the required voltage The illustrations depict assembly of a three module array however exactly the same principles apply to larger sub arrays see the main drawing at the back of this manual Module Preparation Lay the solar modules face down on a smooth flat surface that will not damage the glass as shown in Figure 6 1 Ensure all the module junction boxes are grouped together on one side Note it is important to protect the back of the modules during assembly use sheets of cardboard so that any components dropped on the back of the module do not damage the tedlar backing material Figure 6 1 Lay modules face down on a smooth surface Sub Array Tube Preparation Locate the sub array tubes They can be identified by measuring their length and comparing it with the values in the Table 6 1 Figure 6 2 depicts typical tube preparation Upper Sub array Tube Slide the Tee clamps and module clamps onto one length of tube The upper tube is fitted to the junction box end of the modules Push on two plastic end caps into the end of the tube Position the clamps as shown in the Figure 6 3 see also the foundation drawing for distance between clamps and pinch up using a Allen key in the grub screw Lower Sub Array Tube Slide the right angle clamps and module clamps onto the other tube in same positions as for the Tee clamps on the upper sub array tube
7. n only be determined taking local conditions into account Solar Modules Check that modules are clean wash down glass and frames with water Do not use detergents or solvents Inspect modules for damage ensure glass is undamaged and that there are no tears in plastic on back of modules Inspect module junction boxes check seal is in place Array Structure Inspect for rusting brush off any rust Paint affected area with zinc paint Ensure all nuts and bolts are tight Site Ensure that arrays are not shadowed by growing vegetation trim vegetation as necessary All SKT type structures are covered by a 5 year warranty Page 10 of 10
8. pinch up and fit two plastic end caps Note Only tighten the clamps sufficiently to stop them sliding on the tube they will need to be adjusted when the support legs are fitted later Page 5 of 10 SKT Installation and users Manual Low level Structures Plastic end cap Tee clamp NE 9 o 0 1 Top Sub array Tube Assembly Stainless steel module DEA lL Joiner clamp Bottom Sub array Tube Assembly Figure 6 2 Fitting components onto the upper and lower sub array tubes Sub Array Assembly Lay the tube assemblies on to the back of the solar modules with the Tee clamps at the module junction box end and the right angle clamps at the bottom Position the module clamps so as to line up with the module mounting holes Using the M8 fastener kits bolt the module clamps onto the modules Figure 6 4 Mount the junction box if supplied as required Figure 6 3 Place tubes across modules back and clip the module clamps over the tubes in the positions shown Page 6 of 10 Installation and user manual Low level Structures SK
9. ttempting assembly What s Involved Concrete foundations are required for this structure see the foundation details at the back of this manual Preparation of tools Table 6 1 and checking that all components are present Assembly of sub array if not supplied pre assembled and assembly of supports to the sub array Compass To ensure correct orientation Tape measure 5 metres long Measure out mounting points etc Hammer drill To drill the footings 10mm masonry bits To drill the footings To tap in the parabolts Hammer Allen key or 6 25mm SUPPLIED Half round file To clear bolt holes of excess zinc Zinc touch up paint and brush Galvafroid For touching up transit damage 13mm A F spanners Module to structure assembly Sponge cloth and clean water For cleaning the modules Opaque sheeting To shade the modules as required Inclinometer angle setter To ensure the correct tilt angle is set Table 6 1 Recommended tools for structure assembly Right angle clamp End cap Swivel base clamp Slide clamp Module clamp Page 4 of 10 Installation and user manual SKT Low level Structures ASSEMBLY OF SUB ARRAYS Assembly of the Sub Array If the modules have been supplied pre arrayed then this section may be omitted move on to Section 6 Assembly of Support Legs to the Sub Array The modules must first be mechanically assembled to the support tubes and t
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