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© 2005 by UniRac, Inc. 

All rights reserved.

Pub 050304-1ii

March 2005 

UniRac welcomes input concerning the accuracy and user friendliness of 

this publication. Please write to 

[email protected].

U.S. Des. Patent No. D496,248S. Other patents pending.

This manual details the 
procedure for fl ush mounting 
SolarMount to a pitched roof. 
If your installation includes tilt 
legs, see also the instructions 
shipped with the leg kit.

Contents

Installer reponsibility  . . . . . . 2

Laying out the
installation area . . . . . . . . . . . 2

Laying out L-feet  . . . . . . . . . . 3

Installing L-feet  . . . . . . . . . . . 3

Laying out standoffs  . . . . . . . 4

Installing standoffs  . . . . . . . . 4

Installing SolarMount
rails  . . . . . . . . . . . . . . . . . . . . . 5

Installing the modules  . . . . . 6

Wrenches and torque

                            Wrench       Recommended
                               size         torque (ft-lbs)

¼˝ hardware             

7

16

˝               15

3

8

˝ 

 hardware            

9

16

˝               30

Figure 3. Exploded view of  a low-profi le installation 
mounted fl ush to the roof with L-feet.

Mid

clamp

End 

clamp

T-bolt slot

  for 

module

   mounting

Footing 

bolt slot

L-foot

Part quantities

SolarMount

®

 Rail Sets

                                  No. of               

3

8

˝ footing 

3

8

˝ fl ange

Rail length (inches)          rails      L-feet        bolts 

nuts

  48 – 106                             2              4                4 

4

120 – 180                             2              6                6 

6

192 – 216                             2              8                8 

8

226 – 288 (w/ splice)             2            10              10 

10

300 – 336 (w/ splice)             2            12              12 

12

348 – 408 (w/ splice)             2            14              14 

14

420 – 432 (w/ splice)             2            16              16 

16

Top Mounting Clamp Sets, Sizes A – F, G*, H†, and J

Modules       End          Mid     

¼˝

 module 

¼˝

5

8

˝ 

¼˝

 fl ange

per row     clamps     clamps       T-bolts 

safety bolts 

nuts

 

2               4               2                 6 

8

 

3               4               4                 8 

10

 

4               4               6               10 

12

 

5               4               8               12 

14

 

6               4              10               14 

16

 

7               4              12               16 

18

 

8               4              14               18 

20

 

9               4              16               20 

22

  10               4              18               22 

24

  11               4              20               24 

26

  12               4              22               26 

28

 * In size G, end clamps and mid clamps are identical, except that end clamps 

include spacers. For illustration, see page 14.

† In size H, end clamps and mid clamps are identical. Hexhead bolts replace 

T-bolts. For illustration, see page 14.

Stainless steel hardware can seize up, a 
process called galling. To sig nifi   cant ly re-
duce its like li hood, (1) apply lubricant to 

bolts, preferably an anti-seize lu bri cant, available 
at auto parts stores, (2) shade hardware prior to 
installation, and (3) avoid spinning on nuts at high 
speed. See Installation Supplement 910, 

Galling 

and Its Prevention,

 at www.unirac.com.

Installation with Top Mounting Clamps

Installation Manual 201.1

Summary of Contents for SolarMount

Page 1: ...ng 3 8 flange Rail length inches rails L feet bolts nuts 48 106 2 4 4 4 120 180 2 6 6 6 192 216 2 8 8 8 226 288 w splice 2 10 10 10 300 336 w splice 2 12 12 12 348 408 w splice 2 14 14 14 420 432 w splice 2 16 16 16 Top Mounting Clamp Sets Sizes A F G H and J Modules End Mid module x 5 8 flange per row clamps clamps T bolts safety bolts nuts 2 4 2 6 2 8 3 4 4 8 2 10 4 4 6 10 2 12 5 4 8 12 2 14 6 4 1...

Page 2: ...or replacement shall completely satisfy and discharge all of UniRac s liability with respect to this limited Warranty Under no circumstances shall UniRac be liable for special indirect or consequential damages arising out of or related to use by Purchaser of the Product Manufacturers of related items such as PV modules and flashings may provide written warranties of their own UniRac s limited Warra...

Page 3: ...t rail sets Apply sealant into the hole and on the shafts of the lag bolts Seal the underside of the L feet with a suitable weatherproof sealant Securely fasten the L feet to the roof with the lag bolts Ensure that the L feet face as shown in Figure 6 or Figure 7 The single slotted square side of the L foot must always lie against the roof with the double slotted side perpendicular to the roof Fig...

Page 4: ...bove the rafters Adjust as needed following the guidelines in Figure 10 as closely as possible Installing standoffs Drill 3 16 inch pilot holes through the underlayment into the center of the rafters at each standoff location Securely fas ten each standoff to the rafters with the two 5 16 x 31 2 lag bolts provided with it Verify that the lag bolts you use are adequate for your installa tion by fol...

Page 5: ...tach the rails to the footings with the flange nuts Ensure that the rails are oriented to the footings as shown in Figure 6 7 9 or 10 whichever is appropriate Aligning the Rail Ends Align one pair of rail ends to the edge of the instal lation area Fig 13 or Fig 14 The opposite pair of rail ends will overhang the side of the installation area Do not trim them off until the installation is complete I...

Page 6: ...odule as needed and securely tighten the flange nuts 15 ft lbs Installing the Other Modules Lay the second module face down glass to glass on the first module Connect intermodule cable to the second module and close the J box cover Turn the second module face up Fig 16 With T bolts mid clamps and flange nuts secure the adjacent sides of the first and second modules Align the second module and securely...

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