SunEarth RexRack Installation Manual

1

November, 2014 Rev.C

RexRack

SunEarth RexRack Installaon Manual

Thank you for purchasing SunEarth’s RexRack System. The

use of all stainless steel hardware and 6063-T6 structural alu-

minum make SunEarth’s RexRack a simple, strong and dura-

ble solution for your racking needs. It accommodates tilt angles from 20° to 60° from horizontal and is compatible with all SunEarth solar collectors.

The RexRack components consist of 6063-T6 anodized aluminum mounting feet, support strut, rear leg as well as collectors clips and stainless steel fasteners that can withstand the harshest weather conditions. The components have factory machined holes to expedite field installation.

SunEarth’s RexRack has been designed to allow installation on

all roof types. Always maintain a tilt angle greater than 10° from horizontal.

RexRack should not be used in areas that experience positive panel loading (snow) greater than 60 psf or negative panel loading (wind) greater than 60 psf. If expected loading exceeds these values please contact SunEarth for other mounting options.

The use of mounting systems that do not conform to the ma-

terials and methods detailed in this or any of SunEarth’s other

published installation manuals, guidelines, and technical bulletins is not recommended and may void your collector warranty.

SunEarth RexRack

Low Slope Roof Installation

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November, 2014 Rev.C

RexRack — Location

The optimal siting of the solar collector is facing true south. If this is not possible the annual performance will suffer very little if the collector is oriented no more than 45° east or west of true south.

The solar collector should be placed on the roof in an area and orientation that minimizes wind and snow loading. Wind loads are highest near the edges and ridge of the roof. It is not advisable to install solar collectors in locations 2 (yellow) and 3 (red) on the plan view shown on the left.

Example: If the installation site has a roof that is 35 feet wide, 60 feet long and has a mean roof height of 30 feet.

10% of “LHD” = 0.10 X 35 = 3.5

4% of “LHD” = 0.04 X 35 = 1.4

40% of “MRH” = 0.40 X 30 = 12

a = 3.5 feet since 1.4<3<3.5<12

Therefore collectors should be installed at least 3.5 feet away from any roof peak or edge.

S

Flat Roof 20° ≤ Collector Tilt ≤ 60°

Gable Roof 20° ≤ Collector Tilt ≤ 60°

Note: If either the roof length or width is less than 30 feet

then “a” is equal to 3 feet. Otherwise dimension “a” is 10% of the least horizontal dimension ”LHD” or 40% of the mean roof height “MRH” whichever is smaller, but not less than either 4%

of the least horizontal dimension of the building or 3 feet as stated in Minimum Design Loads for Buildings and Other Structures, American Society of Civil Engineers (ASCE) 7-05.

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November, 2014 Rev.C

RexRack — Tilt Kit Components

Includes

Verify that all components shown to the left have been received before proceeding with installation.

Note: Mounting Feet should never be attached directly to the roof surface without best practice flashing methods. Roof attachment products such as standoffs, hanger bolts, etc. should be implemented to allow proper flashing.

1

2

3

4

5

6

2

3

Front Foot Assembly Part # MTG-FF-BA

Qty. Descripon

1

1 ea. Front Hinge Bracket (Black Anodized Shown)

2 1 ea. Fastener Assembly 3 1 ea. Mounng Foot (Black Anodized Shown)

Table 1

Rear Telescoping Leg Assembly Part # MTG-RTL-2441/3865/5897/86122

Qty. Descripon

2

2ea. Fastener Assembly

3 1 ea. Mounng Foot (Black Anodized Shown) 4 1 ea. Rear Hinge Bracket (Black Anodized Shown) 5 1 ea. Rear Leg Slider (Black Anodized Shown) 6 1 ea. Rear Leg (Black Anodized Shown)

Table 2

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November, 2014 Rev.C

The Collector Mounting Assembly (C-SSN) attaches the collector to the RexRack, 4 required per collector.

RexRack — Additional Components

Support Strut

Example: 10070-158-324-BA = 1-5/8” Support Strut 27’ in Length and Black Anodized

Support Strut Splice*Optional C-SSN

The Support Strut Splice (MTG-SPLICE-8) is used to extend the Support Strut for lengths greater than 27 feet or as required.

The Support Strut (10070-###-###-XX) is used to support the collectors in addition allowing for attachment of the Front Foot Assembly (MTG-FF-XX) and Rear Tel-

escoping leg Assembly (MTG-RTL2441/3865/5897/86122).

4 Required per Collector

The Self Drilling Screws (14BW12X3/4) are used to both fix the length of the rear telescoping legs and secure the hinges to the Support Strut. See Table 3

Self Drilling Screw

SunEarth Part # Required Number of Screws

MTG-FF-XX

3

MTG-RTL-XXXX 5

The Support Strut Splice (MTG-SPLICE-8) is used to extend the Support Strut for lengths greater than 27 feet or as required.

Table 3

Note: Mounting Feet should never be attached directly to the roof surface without best practice flashing methods. Roof attachment products such as standoffs, hanger bolts, etc. should be implemented to allow proper flashing.

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November, 2014 Rev.C

RexRack — Assembly Details

Rear Foot

The Front Foot assembly consists of the Front Hinge Bracket nesting in the Front Foot and attachment with one (1) fastener assembly per front foot. The low support strut is then nested in the Front Hinge Bracket and secured with three (3) selfdrilling screws as shown.

Leg Attachment

Front Foot

The Rear Foot sub-assembly consists of the Rear Telescoping Leg being nested in the Rear Foot and attachment with one (1) fastener assembly per foot.

The Leg attachment consists of the Rear Hinge bracket nesting in the Rear Telescoping Leg and attachment with one (1) fastener assembly per leg. The upper support strut is then nested in the rear Hinge bracket and secured with two (2) selfdrilling screws.

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November, 2014 Rev.C

RexRack — Layout

Portrait Configuration Only

SunEarth’s RexRack is not an appro-

priate mounting solution for locations that experience positive panel loading (snow) greater than 60 psf or negative panel loading (wind) greater than 60 psf. If expected loading exceeds these values please contact SunEarth for other mounting options.

SunEarth’s RexRack layout is out-

lined for the different RexRack models dependent on collector and desired tilt angle. Please reference appropriate sheet for your application.

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November, 2014 Rev.C

RexRack — Support Strut Length, Copper Coupling

Calculate the required length of the Support Struts (10070-###-###XX). This will be the widest feature of the row. The length of the support strut follows the formula outlined below.

Support Strut

SunEarth Collector # Header Length (h)

EC/EP/SB-40-XX

51.375”

EC/EP/SB-32-XX 51.375”

EC/EP/SB-24-XX 39.75”

EC/EP-21-XX 43.375”

Support Strut Length =

(# of Collectors) * (h + 0.125”) - (0.875”)

Example: Given (6) SunEarth EP40 collectors. Required length of each

Support Strut = (6*(51.375+.125.875= 309.875”

In this example two options are available.

1. A single 27’ piece of Support Strut (10070-158-324-BA).

2. Two pieces of 158” Support Strut (10070-158-158-BA) with a Support Strut Splice (MTG-SPLICE-8) to connect the 2 sections.

1.25” BEYOND COLLECTOR

LENGTH OF SUPPORT STRUTS

HEADER LENGTH (h)

Table 4

Quanty

SunEarth Collector # 1 2 3 4 5 6

XX-40-#.##

10070-158-052-

XX

10070-158-104-

XX

10070-158-158-

XX

10070-158-244-

XX

10070-158-288-

XX

10070-158-324-

XX

XX-32-#.##

10070-158-052-

XX

10070-158-104-

XX

10070-158-158-

XX

10070-158-244-

XX

10070-158-288-

XX

10070-158-324-

XX

XX-24-#.##

10070-158-052-

XX

10070-158-082-

XX

10070-158-120-

XX

10070-158-158-

XX

10070-158-204-

XX

10070-158-244-

XX

XX-21-#.##

10070-158-052-

XX

10070-158-104-

XX

10070-158-158-

XX

10070-158-204-

XX

10070-158-244-

XX

10070-158-288-

XX

SunEarth Collector # Header Length (h)

XX-40-#.##

51.375”

XX-32-#.## 51.375”

XX-24-#.## 39.375”

XX-21-#.## 43.375”

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November, 2014 Rev.C

RexRack — Support Strut Length, Union

Calculate the required length of the Support Struts (10070-###-###XX). This will be the widest feature of the row. The length of the support strut follows the formula outlined below.

Support Strut

(UNION-SET-1) Support Strut Length =

(# of Collectors) * (h + 0.25”) + (2.5”)

Example: Given (6) SunEarth EP40 collectors. Required length of each

Support Strut = (6*(51.375+.25) +2.5) = 312.25”

In this example two options are available.

1. A single 27’ piece of Support Strut (10070-158-324-BA).

2. Two pieces of 158” Support Strut (10070-158-158-BA) with a Support Strut Splice (MTG-SPLICE-8) to connect the 2 sections.

1.25” BEYOND COLLECTOR

LENGTH OF SUPPORT STRUTS

HEADER LENGTH (h)

Table 4

(UNION-SET-1.5) Support Strut Length =

(# of Collectors) * (h + 0.375”) + (2.5”)

Quanty

SunEarth Collector # 1 2 3 4 5 6

EC/EP/SB-40-XX

10070-158-052-

XX

10070-158-104-

XX

10070-158-158-

XX

10070-158-244-

XX

10070-158-288-

XX

10070-158-324-

XX

EC/EP/SB-32-XX

10070-158-052-

XX

10070-158-104-

XX

10070-158-158-

XX

10070-158-244-

XX

10070-158-288-

XX

10070-158-324-

XX

EC/EP/SB-24-XX

10070-158-052-

XX

10070-158-082-

XX

10070-158-120-

XX

10070-158-204-

XX

10070-158-204-

XX

10070-158-244-

XX

EC/EP/SB-21-XX

10070-158-052-

XX

10070-158-104-

XX

10070-158-158-

XX

10070-158-204-

XX

10070-158-244-

XX

10070-158-288-

XX

SunEarth Collector # Header Length (h)

EC/EP/SB-40-XX

51.375”

EC/EP/SB-32-XX 51.375”

EC/EP/SB-24-XX 39.75”

EC/EP-21-XX 43.375”

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November, 2014 Rev.C

RexRack — Splice Information

7

8

Support Strut is available in lengths

up to 27’. If the calculated Support Strut length is longer than 27’ then

a Support Strut Splice must be implemented.

Support Strut Splice*Optional

For 1-5/8” Support Strut the Sup- port Strut Splice MTG-SPLICE-8 is used by sliding the splice into one Support Strut until touching the riveted stop, shown in RED for illustrative purposes. Then the other Support Strut is slid onto the splice until it touches the rivet stop.

The Support Strut Splice MTGSPLICE-8 has been designed so that no additional fasteners are required while continuing to allow for thermal expansion and contraction of the Support Strut.

7

8

SunEarth Part # Descripon

7

10070-###-###-XX Support Strut

8 MTG-SPLICE-8 Support Strut Splice

Table 5

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November, 2014 Rev.C

RexRack — EC/EP/SB-40 Layout

RexRack Layout Dimensions

Table 6 provides detail on the proper

placement of the RexRack feet for SunEarth Collector(s).

If the rafter spacing is not 16” or 24” on

center, position the RexRack feet such

that the collector “overhang” is less than 12”. The maximum allowable Leg Spacing (E) is 60” on center for installations utilizing 1-5/8” Solar Strut.

Raer Spacing EC/EP/SB/TRB/IS/IC—40

Leg 90° from Collector Leg 70° from Collector Leg Spacing (E)

Tilt Angle (B) Leg Length (A) Foot Spacing (C) Leg Length (A) Foot Spacing (D) 16" 24"

20 33.4 97.6 31.4 86.2 48 48

25 42.8 101.2 38.9 86.5 48 48

30 52.9 105.9 46.6 87.5 48 48

35 64.2 111.9 54.5 89.2 48 48

40 76.9 119.7 62.7 91.7 48 48

45 91.7 129.7 71.5 95.1 48 48

50 - - 81.1 99.5 48 48 55 - - 91.7 105.2 48 48

60 - - 103.7 112.5 48 48

SunEarth Collector Part # EC/EP/SB-40

Note: All tilt angles are taken for the racking only, relative to horizontal. Roof pitch must be added or subtracted as appropriate to calculate the collector tilt. A general rule of thumb is collector tilt should be equal to local latitude plus 10°.

E

Table 6

Rear Telescoping Leg Assembly Part # MTG-RTL-2441/3865/5897/86122

Adjustment Range

MTG-RTL-2441-XX

24” to 41”

MTG-RTL-3865-XX 38” to 65” MTG-RTL-5897-XX 58” to 97”

MTG-RTL-86122-XX 86” to 122”

Table 7

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November, 2014 Rev.C

RexRack — EC/EP/SB-32 Layout

RexRack Layout Dimensions

Table 8 provides detail on the proper

placement of the RexRack feet for SunEarth Collector(s).

Raer Spacing

Leg 90° from Collector Leg Spacing (E) Leg 70° from Collector

Tilt Angle (B) Leg Length (A) Foot Spacing (C) Leg Length (A) Foot Spacing (D) 16" 24"

20 26.4 77.2 24.8 68.1 48 48

25 33.8 80.0 30.8 68.4 48 48

30 41.9 83.7 36.8 69.2 48 48

35 50.8 88.5 43.1 70.5 48 48

40 60.8 94.6 49.6 72.5 48 48

45 72.5 102.5 56.6 75.2 48 48

50 86.4 112.8 64.1 78.7 48 48 55 - - 72.5 83.2 48 48

60 - - 82.0 88.9 48 48

SunEarth Collector Part # EC/EP/SB-32

E

Table 8

Rear Telescoping Leg Assembly Part # MTG-RTL-2441/3865/5897/86122

Adjustment Range

MTG-RTL-2441-XX

24” to 41”

MTG-RTL-3865-XX 38” to 65” MTG-RTL-5897-XX 58” to 97”

MTG-RTL-86122-XX 86” to 122”

Table 7

Note: All tilt angles are taken for the racking only, relative to horizontal. Roof pitch must be added or subtracted as appropriate to calculate the collector tilt. A general rule of thumb is collector tilt should be equal to local latitude plus 10°.

If the rafter spacing is not 16” or 24” on

center, position the RexRack feet such

that the collector “overhang” is less than 12”. The maximum allowable Leg Spacing (E) is 60” on center for installations utilizing 1-5/8” Solar Strut.

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November, 2014 Rev.C

RexRack — EC/EP/SB-24 Layout

RexRack Layout Dimensions

Table 9 provides detail on the proper

placement of the RexRack feet for SunEarth Collector(s).

Raer Spacing

Leg 90° from Collector Leg Spacing (E) Leg 70° from Collector

Tilt Angle (B) Leg Length (A) Foot Spacing (C) Leg Length (A) Foot Spacing (D) 16" 24"

20 26.4 77.2 24.8 68.1 48 48

25 33.8 80.0 30.8 68.4 48 48

30 41.9 83.7 36.8 69.2 48 48

35 50.8 88.5 43.1 70.5 48 48

40 60.8 94.6 49.6 72.5 48 48

45 72.5 102.5 56.6 75.2 48 48

50 86.4 112.8 64.1 78.7 48 48 55 - - 72.5 83.2 48 48

60 - - 82.0 88.9 48 48

SunEarth Collector Part # EC/EP/SB-24

E

Table 9

Rear Telescoping Leg Assembly Part # MTG-RTL-2441/3865/5897/86122

Adjustment Range

MTG-RTL-2441-XX

24” to 41”

MTG-RTL-3865-XX 38” to 65” MTG-RTL-5897-XX 58” to 97”

MTG-RTL-86122-XX 86” to 122”

Table 7

Note: All tilt angles are taken for the racking only, relative to horizontal. Roof pitch must be added or subtracted as appropriate to calculate the collector tilt. A general rule of thumb is collector tilt should be equal to local latitude plus 10°.

If the rafter spacing is not 16” or 24” on

center, position the RexRack feet such

that the collector “overhang” is less than 12”. The maximum allowable Leg Spacing (E) is 60” on center for installations utilizing 1-5/8” Solar Strut.

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November, 2014 Rev.C

RexRack — EC/EP/SB-21 Layout

RexRack Layout Dimensions

Table 10 provides detail on the proper

placement of the RexRack feet for SunEarth Collector(s).

Raer Spacing

Leg 90° from Collector Leg Spacing (E) Leg 70° from Collector

Tilt Angle (B) Leg Length (A) Foot Spacing (C) Leg Length (A) Foot Spacing (D) 16" 24"

20 18.3 53.4 17.2 47.2 48 48

25 23.4 55.4 21.3 47.4 48 48

30 29.0 58.0 25.5 47.9 48 48

35 35.2 61.3 29.8 48.8 48 48

40 42.1 65.5 34.3 50.2 48 48

45 50.2 71.0 39.2 52.0 48 48

50 59.8 78.1 44.4 54.5 48 48 55 71.7 87.5 50.2 57.6 48 48

60 86.9 100.4 56.8 61.6 48 48

SunEarth Collector Part # EC/EP/SB-21

E

Table 10

Rear Telescoping Leg Assembly Part # MTG-RTL-2441/3865/5897/86122

Adjustment Range

MTG-RTL-2441-XX

24” to 41”

MTG-RTL-3865-XX 38” to 65” MTG-RTL-5897-XX 58” to 97”

MTG-RTL-86122-XX 86” to 122”

Table 7

Note: All tilt angles are taken for the racking only, relative to horizontal. Roof pitch must be added or subtracted as appropriate to calculate the collector tilt. A general rule of thumb is collector tilt should be equal to local latitude plus 10°.

If the rafter spacing is not 16” or 24” on

center, position the RexRack feet such

that the collector “overhang” is less than 12”. The maximum allowable Leg Spacing (E) is 60” on center for installations utilizing 1-5/8” Solar Strut.

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November, 2014 Rev.C

RexRack — Order Sheet

Item Length # of Parts PN Page Notes:

Collector Mounting Assembly N/A C-SSN 4

Support Strut 10070- - - 7

Support Strut Splice* N/A MTG-Splice-8 8

Rear Telescoping Leg Assembly MTG-RTL- - 9-12

Front Foot Assembly N/A MTG-FF- 9-12

Self Drilling Screws N/A 14BW12X3/4 4

RexRack Parts list

Example: Given (6) SunEarth EP-40 collectors to be installed at a 45° lt.

Item Length # of Parts PN Page Notes:

Collector Mounting Assembly N/A 24 C-SSN 4 4 Per Collector. 4*6=24

Support Strut 158”x2 4 10070-158-158-BA 7 311.5” per Support Strut. 2 Support Struts Required

Support Strut Splice* N/A 2 MTG-Splice-8 8 Splices Required Since Each Support Strut Made of 2 Pieces

Rear Telescoping Leg Assembly 71.5” 7 MTG-RTL-5897-BA 9 Assumed Spacing of 48” OC

Front Foot Assembly N/A 7 MTG-FF–BA 9 Quantity is equal to Rear Telescoping Leg

Self Drilling Screws N/A 56 14BW12X3/4 4 3 per Front Foot Assembly, 5 Per Rear Telescoping Leg

Sample RexRack Parts list

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November, 2014 Rev.C

RexRack — Front Mounting Foot Installation

1. Mark the location of the Front Mounting Feet on the main mounting surface as outlined on Tables 6, 8, 9 & 10.

2. Securely fasten the Front Mounting Feet to the main mounting surface using acceptable fastening methods for the mounting surface as well as local codes and conditions. *Check

that all Front Mounting Feet are level and co-planar in respect to each other by adding shims as needed.

3. Insert the Front Hinge Bracket into the Front Mounting Foot with the opening of the channel facing away from the mounting surface. Insert Fastener Assembly thru Front Mounting Foot and Front Hinge Bracket. As shown in Figure 1.

4. Insert Lower Support Strut, shown in RED for illustrative purposes, into the Front Hinge Bracket and secure with three (3) Self Drilling Screws per Mounting Foot as shown in Fig- ure 2.

Note: Always follow all local building codes, ordinances and regulations when creating roof penetrations as well as standard roofing trade practices.

Front Foot Assembly Part # MTG-FF-BA

Qty. Descripon

1

1 ea. Front Hinge Bracket (Black Anodized Shown)

2 1 ea. Fastener Assembly 3 1 ea. Mounng Foot (Black Anodized Shown)

Table 1

1

2

3

Figure 1

Figure 2

Lower Support Strut

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November, 2014 Rev.C

RexRack — Rear Telescoping Leg Assembly Installation

1. Mark the location of the Rear Mounting Feet on the main mounting surface as outlined on Tables 6, 8, 9 & 10.

2. Securely fasten the Rear Mounting Feet to the main mounting surface using acceptable fastening methods for the mounting surface as well as local codes and conditions.

3. Position the Rear Telescoping Leg Assembly on the Rear Mounting Foot with the opening of the channel facing the front foot. Insert Fastener Assembly thru the Rear Mounting Foot and the Rear Telescoping Leg Assembly. As shown in Figure 3.

4. Insert Upper Support Strut, shown in RED, into the Rear Hinge Bracket and secure with two (2) Self Drilling Screws per Mounting Foot as shown in Figure 4.

Figure 4

Rear Telescoping Leg Assembly Part # MTG-RTL-2441/3865/5897/86122

Qty. Descripon

2

2ea. Fastener Assembly

3 1 ea. Mounng Foot (Black Anodized Shown) 4 1 ea. Rear Hinge Bracket (Black Anodized Shown) 5 1 ea. Rear Leg Slider (Black Anodized Shown) 6 1 ea. Rear Leg (Black Anodized Shown)

Table 2

Figure 3

2

3

5

4

5

Upper Support Strut

Note: Always follow all local building codes, ordinances and regulations when creating roof penetrations as well as standard roofing trade practices.

17

November, 2014 Rev.C

RexRack — Rear Telescoping Leg Assembly Installation

5. Set the Rear Telescoping Leg Assembly length as outlined in Ta- bles 6, 8, 9 & 10.

6. Secure every Rear Leg Slider, shown in RED, to every Rear Leg with three (3) Self Drilling Screws as shown in Figure 5.

7. Swing Rear Telescoping Leg Assemblies with Upper Support backwards and lay flat on mounting surface as shown in Figure 6.

Note: Always follow all local building codes, ordinances and regulations when creating roof penetrations as well as standard roofing trade practices.

5

6

Figure 5

Figure 6

Upper Support Strut

Lower Support Strut

18

November, 2014 Rev.C

RexRack — First Collector Placement

1. Place the first Collector face up on the Lower Support Strut with the lower end of the Collector

overhung 5” beyond the Lower

Support Strut. As shown in Figure 5.

2. Position Collector inboard with the Collectors long end a mini-

mum of 1.5” from the edge of

the Lower Support Strut.

3. Install two (2) C-SSN Collector Mounting Assemblies on the Lower Support Strut and torque to 19 ft*lbs (26 N*m).

Figure 5

Collector

Lower Support Strut

Upper Support Strut

Collector Mounng Assembly

Lower Support Strut

19

November, 2014 Rev.C

Figure 6

RexRack — First Collector Installation

4. Raise Collector.

5. Swing rear leg assembly and position the Upper Support Strut so that it is 20% inboard of the Collectors top edge. As shown in Figure 6.

6. Install two (2) C-SSN Collector Mounting Assemblies on the Upper Support Strut and torque to 19 ft*lbs (26 N*m). As shown in Figure 7.

Figure 7

20

November, 2014 Rev.C

RexRack — Guide Rail Placement

1. Attach Rail Brackets to the Rail, using the scale integral to the Rail, at the appropriate Collector Support Strut spacing (x) and torque to 19 ft*lbs (26 N*m).

2. Place Rail Brackets on Upper and Lower Supports Struts and torque to 19 ft*lbs (26 N*m).

3. Check that Upper and Lower Support Struts are co-planar. If adjustments are necessary the three (3) Self Drilling Screws can be removed from the telescoping legs. Following which the legs can be adjusted and the three (3) Self Drilling Screws reinstalled.

Guide Rail Assembly Part # MTG-TS-BA

Qty. Descripon

7

1 ea. Rail (Black Anodized Shown)

8 4 ea. SSN-38 Fastener Assembly 9 2 ea. Rail Bracket (Black Anodized Shown)

9a 1 ea. Integral Scale

Table 3

7

8

9

Guide Rail Bracket with

Fasteners

SunEarth Collector # Support Strut Spacing (x)

EC/EP/SB-40-XX

91.75”

EC/EP/SB-32-XX 72.5”

EC/EP/SB-24-XX 72.5”

EC/EP-21-XX 50.125”

9a

21

November, 2014 Rev.C

RexRack — Collector Helping Hand Placement

1. Install two (2) Helping Hands on Collector per Table 4, shown in

RED. Torque to 19 ft*lbs (26

N*m).

2. Place Collector on Rack. Allowing Collector to be supported by Helping Hands.

Helping Hand Part # MTG-HH-BA

Qty. Descripon

10

2 ea. SolarStrut (Black Anodized Shown)

11 2 ea. C-SSN Collector Mounng Assembly

Table 5

SunEarth Collector #

Helping Hand Placement from

Upper End of Collector

EC/EP/SB-40-XX

22.75”

EC/EP/SB-32-XX 18”

EC/EP/SB-24-XX 18”

EC/EP-21-XX 13.625”

Table 4

10

11

Helping Hand

22

November, 2014 Rev.C

RexRack — Additional Collector Installation

1. Slip two (2) copper couplings on the Collector headers.

2. Slide Collector into position while aligning header couplings. As shown in Figure 8.

3. With the Collector in position install four (4) C-SSN, Collector Mounting Assemblies. Torque to 19 ft*lbs (26 N*m).

4. Sweat Copper Couplings.

5. Remove Helping Hands and install on the next Collector.

6. Follow steps 1-5 until the final Collector, shown in RED, is installed prior to which the Guide Rail is removed. As shown in Fig- ure 9.

Figure 8

Figure 9

Copper Coupling Method

23

November, 2014 Rev.C

RexRack — Additional Collector Installation

1. Slide Collector into position while aligning header Unions. As shown in Figure 10.

2. Insert O-Rings and tighten Unions ensuring that O-Ring is not damaged.*

3. With the Collector in position install four (4) C-SSN, Collector Mounting Assemblies. Torque to 19 ft*lbs (26 N*m).

4. Remove Helping Hands and install on the next Collector.

5. Follow steps 1-5 until the final Collector, shown in RED, is installed prior to which the Guide Rail is removed. As shown in Fig- ure 11.

Figure 10

Figure 11

Union Method

*Note: Always us a pipe wrench to back up

the Union when tightening in order to avoid damaging the header pipe and internal riser tubes.

24

November, 2014 Rev.C

RexRack — Drainback Considerations

For drainback systems Collectors can be angled in order to ensure the Collectors are fully drained when the pump stops. As shown in Figure 12.

When angling Collectors a minimum

distance of 6” must be maintained

between the Collector ends and the Support Struts.

In cases where many collectors are to be placed in a single row the skewing of the collectors can be mirrored to create a chevron pattern. As shown in Figure 13.

Figure 12

Figure 13

6” MINIMUM

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November, 2014 Rev.C

RexRack — Seismic Considerations

For installations where Seismic forces must be considered then the addition of a diagonal brace is required.. Shown as RED in Figure 14.

The brace consists of SolarStrut affixed to the RexRack Rear Telescoping Legs utilizing SSN-38 hardware assemblies.

One (1) diagonal brace is required for every six (6) Collectors in a continuous row.

Figure 14

SolarStrut

SSN-38

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November, 2014 Rev.C

RexRack — Diagonal Brace Installation

Figure 15

1. Drill 3/8” hole 1-1/2” from the top of the Rear Telescoping Leg Slider. Shown as RED in Figure

15.

2. Drill 3/8” hole 1-1/2” from the bottom of the adjacent Rear Telescoping Leg. Shown as RED in Figure 16.

3. Install SSN-38 hardware assemblies in the drilled holes. Shown as GREEN in Figures 17 & 18.

4. Slide SolarStrut onto SSN-38 hardware assemblies.

5. Torque SSN-38 hardware assemblies to 19 ft*lbs (26 N*m).

3/8” Hole

Figure 16

SSN-38

Figure 17

Figure 18

SSN-38

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November, 2014 Rev.C

LIMITED PRODUCT WARRANTY

This warranty only applies to the following SunEarth products (hereinafter SunEart h Products):

MOUNTING HARDWARE: SolarStrut, SunEarth Mounting Clips, Flush Mount Foot TILT RACKS: RexRack, Universal Tilt Rack, Landscape Rack

Under conditions of normal use and service the above SunEarth Mounting Structures are warranted to the original user at the original installation site to be free from substantial defects in material and workmanship of the structural components of the products for a period of 10 years (Structural Warr anty Period) except of the anodized finish, which will be free from visible peeling, cracking or chalking under nor mal atmospheric conditions for a period of 3 years (Finish Warranty Period) pursuant to the exclusions detailed in this written warranty statement. The warranty period for both structural and finish warranties shall be from the date of sale to the end user. SunEarth's liability for these SunEarth Products shall be limited to rep airing or replacing at SunEarth's sole option, without charge, F.O.B. SunEarth's factory o r an authorized SunEarth distributor or service center. SunEarth will not be liable for any costs of transportation, inspection, remova l, reinstallation, or any other labor or freight charges that may arise in connection with a warranty claim.

THIS WARRANTY DOES NOT APPLY

This warranty do es not apply to the following: (1) conditions resulting from a failed component or part that is not part of the above listed SunEarth Products; (2) to conditions resulting from misuse, abuse, neglect, accident, alteration or modification b y anyone other than SunEarth; (3 ) to damage occurring during shipping, handling, storage or installation of the SunEarth Products; (4) to damage caused by installation methods, including mounting, that do not confor m to relevant national, state or local co des and ordinances, good industry practices, or to current applicab le SunEarth manuals, diagrams, technical b ulletins, or written installation instructions; (5) to cosmetic discolor ation of the product; (6) to rust or corrosion of the components; (7) to installatio ns in corrosive atmospheric conditions; (8) to foreign residue deposited on the finish; (9) to conditions resulting from floods, earthquakes, winds, fire, lightning, snow, ice, hail or circumstances beyond SunEarth's control; (10) to any cause unrelated to materials and workmanship.

The Finish Warranty is VOID if the practices specified by AAMA 609 & 610-02 – “Cleaning and

Maintenance for Architecturally Finished Aluminum” (www.aamanet.org) are not followed by Purchaser

for SunEarth’s aluminum based products.

The warranty does not cover any defect that has not been reported in writing to SunEarth within ten (10) days after discovery of such defect.

If one of the above SunEarth Products is purchased outside the United States certain conditions of this warranty may NOT apply. Please contact your local SunEarth distributor or d ealer for details.

LIMITED WARRANTY

EXCEPT AS EXPRESSLY PROVIDED IN THIS WARRANTY, THE ABOVE SUNEARTH PRODUCTS ARE P ROVIDED WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AN D FITNESS FOR A PARTICULAR PURPOSE OR ANY WARRANTY OR NON-INFRINGEMENT. SOME STATES DO NOT ALLOW THE EXCLUSION OF IMPLIED

WARRANTIES, SO THE ABOVE EXCLUSION MAY NOT APPLY TO YOU.

LIMITATIONS OF REMEDIES

IN NO EVENT SHA LL SUNEARTH BE LIABLE FOR ANY DAMAGES FOR LOST PROFITS, LOST SAVINGS OR O THER INCIDENTAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF THE USE OR INABILITY TO USE THE ABOVE SUNEARTH PRODUCTS, OR FOR ANY CLAIM BY A THIRD PARTY. SOME STATES DO NOT ALLOW THE LIMITATION OR

EXCLUSION OF LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL D AMAGES, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.

EXCLUSIVE AGREEMENT

THIS WARRANTY CONSTITUTES THE ENTIRE, COMPLETE, FINAL, AND EXCLUSIVE AGREEMENT FOR THE SUNEARTH PRODUCTS LISTED ABOVE. THIS WARRANTY SUPERSEDES ANY PROPOSAL, AGREEM ENT, OR REPSRESENTATION, OR ANY OTHER COMMUNICATION, EITHER WRITTEN OR ORAL, MADE BETWEEN SUNEARTH AND

SUNEARTH’S DISTRIBUTORS OR DE ALERS, OR BETWEEN SUNEARTH AND THE END

CONSUMER.

TO MAKE A CLAIM

To obtain ser vice under this warranty, t he product i n question must be returned to the distributor or dealer of SunEarth p roducts nearest you, or an authorized SunEarth service center. Each claim must be accompanied by documentation providing the following:

1) Owner’s name, add ress, email address, and phone number

2) Installation contractor’ s name, email address, and phone number

3) Original sales receip t

4) Product model nu mber(s)

5) Date of installatio n

6) Date of failure

7) Reason for failure

8) Pictures of the suspected manufacturing defect – digital pictures of the suspected manufacturing defect

also need to be submitted

If you have any warranty questions, contact your installation contractor or SunEarth at (909) 434 -3100.

RexRack — Warranty