Sunmodo EZ Series User manual

Pitched Roof Mount System
With Self-grounding Hardware
Pub. D10004-V010
Copyright 2015
EZ Roof Mount System
With Self-grounding Hardware
UL2703 Compliant

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Please read carefully before installing
Product is tested to and recognized to UL 2703 standards for safety grounding and bonding
equipment and meets UL1703 fire standards.
SunModo EZ Roof Mount System can be used to mount PV panels on pitch roofs. All
installations shall be in accordance with NEC requirements in the USA. The self-grounding
and bonding system is for use with PV modules that have a maximum series fuse rating of
less than 15A.
TABLE OF CONTENTS
Installer Responsibility............................................................................................................................3
Safety..........................................................................................................................................3
SunModo Self-Grounding System..........................................................................................................4
EZ Roof Mount System Components .....................................................................................................5
List of Compliant PV Modules ………………………………………………………………………………….. 7
Tools Required for Installation..............................................................................................................10
EZ Roof Mount System Installation ......................................................................................................11
Torque Values of EZ Roof Mount Components.........................................................................12
Panel Configurations ................................................................................................................13
EZ Roof Mount Installation........................................................................................................15
Helio Rail Installation................................................................................................................17
Panel Clamp Installation for Portrait Mounting........................................................................ 20
Panel Clamp Installation for Landcape Mounting.................................................................... 21
Rail End Cover Installation...................................................................................................... 22
Grounding Lug Installation...................................................................................................... 22
Warranty ..............................................................................................................................................23
Terms and Conditions...............................................................................................................23
SunModo Limited Warranty ......................................................................................................23
Indemnification .........................................................................................................................24
SunModo Corporation:
1905 E 5th Street, Suite A
Vancouver, WA 98661
360-844-0048
Document Number D10004-V010
©2015 –SunModo Corp.
5001753

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Installer Responsibility
Before ordering and installing materials, all system layout dimensions should be confirmed by field
measurements. SunModo reserves the right to alter, without notice, any details, proposals or plans.
Any inquiries that you may have concerning installation of the PV system should be directed to your
SunModo Sales representative. Consult SunModo Sales for any information not contained in this
manual. This manual is intended to be used as a guide when installing SunModo Pitch Roof PV
systems. It is the responsibility of the installer to ensure the safe installation of this product as outline
herein.
This racking system may be used to ground and/or mount a PV module complying with UL
1703 only when the specific module has been evaluated for grounding and /or mounting in
compliance with the included instructions.
The installer shall employ only SunModo products detail herein. The use of non SunModo
components can void the warranty and cancel the letters of UL compliance.
Guarantee that screws and anchors have adequate pullout strength and shear capacities.
Adhere to all relevant local or national building codes. This takes account of those that supplant
this document’s requirements.
Guaranteeing safe placement of all electrical details of the PV array
Installer is responsible to install EZ Roof Mount System over a Fire Resistant roof covering
rated for the application.
Installer is responsible to determine that the roof, its rafters, connections, and other
architectural support components can sustain the array under all code level loading conditions
The installer shall comply with all applicable local or national building codes, including periodic
re-inspection of the installation for loose components, loose fasteners and any corrosion, such
that if found, the affected components are to be immediately replaced.
This racking system may be used to ground and/or mount a PV module complying with UL
1703 only when the specific module has been evaluated for grounding and/or mounting in
compliance with the included instructions.
Safety
Review relevant OSHA and other safety standards before following these instructions. The installation
of solar PV systems is a dangerous procedure and should be supervised by trained and experienced
personnel.
It is not possible for SunModo to be aware of all thepossible job site situations that could cause anunsafe
condition to exist. The installer of the roof system is responsible for reading these instructions and
determining the safest way to install the roof system. These instructions are provided only as a guide to
show a knowledgeable, trained erector the correct part placement one to another. If following any of the
installation steps would endanger a worker, the erector should stop work and decide upon a corrective
action. Provide required safety railing, netting, or safety lines for crew members working on the roof.

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SunModo Self-Grounding System
SunModo offers a proprietary grounding and bonding system that is designed into the
mounting hardware for rails, clamps and splices. All hardware meet UL2703 Grounding and
Fire Standards.
The basis of the system is our patented stainless steel floating grounding pin which is
designed to be captive in the mounting components and provides a bonding path from the PV
panel frames to the rails and rail splices, and finally to the ground lug.
Fig. 1: Mid Clamp with Ground Pins
Fig. 1 shows the grounding pin and the location within the mid and end clamps. Similarly, the
rail splices in Fig. 2 include the grounding pins, eliminating the need for extra bonding
components.
Fig. 2: Rail Splices with Grounding Pins

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EZ Roof Mount System Components
Primary Materials
EZ Roof Mount Series:
EZ Roof Mount Kit includes:
Roof shoe and gasket
4 inch lag screw
L foot
AL hex cap
3/8” flange nut and bolt
Flashing
K10068-001 (EZ Roof Mount with
L-Foot as shown)
K10070-XXX (EZ Roof Mount with
Standoff)
K10082-XXX (EZ Metal Roof
Mount with L-Foot)
K10064-XXX (EZ Metal Roof
Mount with Standoff)
Helio Rails: Features both 1/4”
and 3/8” side slots, and 1/4” top
slot for clamping PV panels. Last 3
digits denote length. 4 stock sizes
in clear and black (Table 1)
A20144-XXX (Standard Rail)
A20145-XXX (Heavy Rail)
3/8” Slot Rail Splice Kit with (2)
3/8-16 hex bolts and flange nuts
with integral grounding.
Maybe repositioned until
torqued to final value.
K10178-001
For single-use only
1/4” Slot Rail Splice Kit with (4)
bolts and flange nuts with integral
grounding. Maybe repositioned
until torqued to final value.
K10177-001
For single-use only
End Clamp Kit, fits panel height
from 31 to 50 mm. For last 3
digits, see Table 4
K10224-XXX

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Mid Clamp Kit with integral
grounding, fits panel height from
31 to 50 mm. For last 3 digits, see
Table 4. Maybe repositioned
until torqued to final value.
K10180-XXX
For single-use only
Landscape End Clamp Kit with
adaptor for standard rail and
integral grounding, fits panel
height from 31 to 50 mm. For last
3 digits, see Table 4. Maybe
repositioned until torqued to
final value.
K10183-XXX
For single-use only
Landscape Mid Clamp Kit with
adaptor for standard rail and
integral grounding, fits panel
height from 31 to 50 mm. For last
3 digits, see Table 4. Maybe
repositioned until torqued to
final value.
K10182-XXX
For single-use only
Grounding Lug Kit with Grounding
Spacer and 1/4-20 T-Bolt. Maybe
repositioned until torqued to
final value.
K10179-001
For single-use only
Table 1 –SunModo Standard Rail Lengths
Rail Lengths
Part Number (Clear)
Part Number (Black)
84 in
A20144-084
A20144-084-BK
124 in
A20144-124
A20144-124-BK
164 in
A20144-164
A20144-164-BK
206 in
A20144-206
A20144-206-BK

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List of Compliant PV Modules
Table 2 –2703 Qualified Modules for use with SunModo Pitch Roof and SunBeam
Systems
Evaluated PV Modules
Module
manufacturer
Model numbers
C-Sun
CSUN290-72P, CSUN295-72P, CSUN300-72P,
CSUN305-72P, CSUN310-72P, CSUN285-72M,
CSUN290-72M, CSUN295-72M, CSUN300-72M,
CSUN305-72M, CSUN310-72M, CSUN315-72M,
CSUN320-72M, CSUN235-60M, CSUN240-60M,
CSUN245-60M, CSUN240-60P, CSUN245-60P,
CSUN250-60P, CSUN255-60P, CSUN260-60P
Canadian Solar
CS6X-300P, CS6X-305P, CS6X-310P, CS6X-315P, CS6X-320P, CS6P-
255P, CS6P-260P, CS6P-265P, CS6P-260M, CS6P-265M, CS6V-210P,
CS6V-215P, CS6V-220M, CS6V-225M, CS6K-265M, CS6K-270M
ET Solar
ET-P672300WW, ET-P672305WW, ET-P672310WW, ET-P672315WW
Hanwha Q Cells
Q.PRO L-G2 305, Q.PRO L-G2 310, Q.PRO L-G2 315
Hareon
HR-280P-24/Ba, HR-285P-24/Ba, HR-290P-24/Ba, HR-295P-24/Ba,
HR-300P-24/Ba, HR-305P-24/Ba, HR-310P-24/Ba
Itek Energy
(50 mm frame)
IT250HE, IT255HE, IT260HE, IT265HE, IT270HE, IT275HE, IT280HE,
IT285HE, IT290HE, IT295HE, IT300HE, IT305HE, IT310HE
Panasonic
VBHN285J40
Phono Solar Tech
PS255M-20/U, PS260M-20/U,
PS265M-20/U, PS270M-20/U,
PS275M-20/U, PS280M-20/U
PS300P-24T, PS305P-24T, PS310P-24T
PS315P-24T, PS320P-24T, PS325P-24T

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Sanyo
HIP-190BA3, HIP-195BA3,
HIP-200BA3, HIP-205BA3,
HIT-N215A01, HIT-N220A01, HIT-N225A01
SolarWorld
(V2.5 frame)
Sunmodule SW series:
SW 220 mono and poly,
SW 225 poly, SW 230 poly, SW 235 poly,
SW 240 mono and poly,
SW 245 mono and poly, SW 250 mono,
SW 255 mono, SW 260 mono, SW 265 mono, SW 270 mono
Sunmodule Plus series:
285W mono, 280W mono, 275W mono,
270W mono, 265W mono, 260W mono,
255W mono, 250W mono
Sunmodule Protect 275W mono
Sunmodule Protect 270W mono
Sunmodule Protect 265W mono
Sunmodule SW 245 - 255 poly / Pro-Series
SolarWorld
(33mm frame)
Sunmodule Pro-Series:
250W poly, 255W poly, 260W poly
315W XL mono, 320W XL mono,
325W XL mono,
Sunmodule Plus:
260W mono, 270W mono, 275W mono,
280W mono, 285W mono
Stion
STO-135A, STO-140A, STO-145A, STO-150A
SunEdison
F310EzD, F315EzD, F320EzD,
F325EzD, F330EzD, F335EzD,
F310EzC, F315EzC, F320EzC,
F325EzC, F330EzC, F335EzC,
R330EzC, R335EzC, R340EzC,
R345EzC, R350EzC, R355EzC

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SunPower
X21-355-BLK, X21-345, SPR-E20-327,SPR-E19-320
Trina
TSM-225 PC/PA05, TSM-230 PC/PA05,
TSM-235 PC/PA05, TSM-240 PC/PA05,
TSM-245 PC/PA05
Yingli
YL230P-29b, YL235P-29b, YL240P-29b, YL245P-29b

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Tools Required for Installation
Electric Drill or impact driver. Note that the use of an impact
driver is strongly discouraged for all stainless nut and bolt
hardware.
Roofing Bar
Drill Bit for lag bolts, pilot hole 7/32” diameter for 5/16” lag
bolt
3/8” Socket wrench
Sockets for 3/8” drive sockets, 7/16”, 1/2”, 9/16” and 1-1/16”

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Torque Wrench 3/8” drive, 0 to 35 ft. lbs.
Anti-seize compound (Permatex 80071 or equivalent).
Caulk gun and silicon sealant (Chem-link M1 construction
sealant or equivalent).
Tape measure
Saws for cutting aluminum posts and rails as necessary

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EZ Roof Mount System Installation
Torque Values for EZ Roof Mount Components
Table 3 defines the maximum torque values for the screw attachments used to assemble the
racking system. These values must be adhered to, both for mechanical strength and to insure
the performance of the integral grounding and bonding features. It is required that a torque
wrench be used to measure the bolt torque during final assembly, and it is recommended that
anti-seize compound be applied to the screw threads.
Table 3 –Torque Values for EZ Roof Mount Components
Hardware
Torque
1/4” Bolts and Hex Flange Nuts
7.5 ft. lbs
3/8” Bolts and Hex Flange Nuts
15 ft. lbs
3/8” T bolts and Hex Flange Nuts
15 ft. lbs
Mid or End Clamp, 1/4-20 Female Standoff with 7/16”
hex head collar nut
7.5 ft. lbs
Ground Lug: 1/4” Flange Nut with 7/16 hex drive head
7.5 ft. lbs
Ground Lug: 1/4” setscrew with1/8 Allen drive
4.2 ft.lbs. (50 in. lbs)
HEX Cap: 1-1/16” socket
15 ft. lbs.

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Panel Configurations: Panels can be installed either Portrait or Landscape
Portrait Installation of PV Systems using the Self-grounding Mid Clamps
Fig. 3: Self-grounding PV System Portrait
Fig. 3 details a typical portrait roof layout featuring two East-West rails mounted to North-
South roof rafters with an L foot. Detail C shows the use and position of Mid Clamps. Module
length is shown as a nominal 60 cell PV panel, however longer 72 cell PV panels can also be
used.

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Landscape Installation of PV Systems using the Self-grounding Mid and
End Clamps
Fig. 4: Self-grounding PV System Landscape
Fig. 4 details a unique product allowing a standard rail to be adapted to share rail use for
landscape layout of roof mount PV systems. Note that the PV panels are clamped on the long
edges as required by most manufacturers.
This share rail adaptor system is shown in Fig. 5. Note that the self-grounding feature is
present on mid clamp.
Fig. 5: Mid and End Clamps with Rail Adaptors
The self-grounding adaptors fit into a Standard or Heavy rail, allowing installation flexibility in
rooftop designs

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EZ Roof Mount Installation
From the marked location, move
down the roof 2-1/4” from the
bottom of the shingle, and drill the
pilot hole for the lag bolt with a
7/32” drill bit. For maximum
strength, the hole should not be
more than 3”in depth, and a drill
stop may be used to insure this.
Fig. 6: Locate lag screw mounting. Drill a 7/32”hole
through the shingle to a depth of 2 inches
Clean sawdust with drill and fill
hole with sealant. Use the 4 inch
by 5/16” lag bolt (supplied) to
install the aluminum roof shoe.
(Use Chem-link M1 Construction
Sealant or Equivalent)
Fig. 7: After filling the hole with sealant, secure
the roof shoe with the lag bolt. Tighten to 20 ft. lbs

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Make sure the washer on the
threaded shank is positioned
correctly. Use roofer bar to lift roof
shingle, slide the flashing under
shingle, and insert the flashing on
threaded shank as shown.
Optional: A U shaped bead of
sealant can be added under the
flashing if the installer is
concerned with water migration
Fig. 8: Slide the roof flashing into place
under the overlapping shingle and over the threaded
portion of the roof shoe
Insert L-Foot onto the large thread
on the roof shoe on top of
flashing. Place aluminum hex cap
on shoe, and finger tighten the
cap. Then tighten to 15 ft. lbs.
nominal torque.
Fig. 9: Install the L-Foot and Aluminum hex cap
and tighten to 15 ft. lbs.

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Helio Rail Installation
Slide 3/8” Hex Bolt to 3/8” aluminum rail
slot.
Fig. 10: 3/8” Hex Bolt
Install AL rail to L-Foot to the specific
orientation desired. Tighten 3/8” flange
nut to 15 ft. lbs. and 1-1/16” aluminum
hex cap to 20 ft. lbs. torque.
Minimum leading edge height to meet
a UL1703 PV module fire standard is
3 inches.
Fig. 11: Aluminum Rail Attached.
Fig. 12: PV Module Attached.
3 inch minimum
from bottom of PV module
frame to the roof covering

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Splicing the rails together: Where rail splicing is required, either the 2 bolt for the 3/8” rail
slot or the 4 bolt for the 1/4” rail slots can be used. Shown is the 2 bolt 3/8” rail slot version
which must be torqued to 15 ft. lbs.
Fig. 13: The 2 bolt splice can be used to join rail section together.
The 4 bolt version of the rail splice can also be used. Torque on the 1/4” flange nuts is a
maximum of 7.5 ft. lbs.
Fig. 14: A 4 bolt version of the self-grounding splice can
be installed to join rail sections together.

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Table 4 -Table of Clamp Bolt Lengths and Part Numbers
Clamps
Part # End
Part # Mid
Size
"T" Bolt in.
"T" Bolt PN
Portrait
K10224-031
K10180-125
31 mm
1.25
B20015-011
Portrait
K10224-033
K10180-125
33 mm
1.25
B20015-011
Portrait
K10224-040
K10180-157
40 mm
1.57
B20015-013
Portrait
K10224-042
K10180-157
42 mm
1.57
B20015-013
Portrait
K10224-044
K10180-157
44 mm
1.57
B20015-013
Portrait
K10224-046
K10180-157
46 mm
1.57
B20015-013
Portrait
K10224-050
K10180-210
50 mm
2.10
B20015-002
Clamps
Part # End
Part # Mid
Size
"T" Bolt in.
"T" Bolt PN
Landscape
K10183-031
K10182-157
31 mm
1.57
B20015-013
Landscape
K10183-033
K10182-157
33 mm
1.57
B20015-013
Landscape
K10183-040
K10182-157
40 mm
1.57
B20015-013
Landscape
K10183-042
K10182-210
42 mm
2.10
B20015-002
Landscape
K10183-044
K10182-210
44 mm
2.10
B20015-002
Landscape
K10183-046
K10182-210
46 mm
2.10
B20015-002
Landscape
K10183-050
K10182-210
50 mm
2.10
B20015-002
Collar Nut
B20025-001
This table shows the nominal T-Bolt lengths for various PV Panels commonly used in the
industry.

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Panel Clamp Installation for Portrait Mounting
Installing End Clamps: An end clamp is used at each end of a row of PV panels. There must
be at least 1.5” of rail extending beyond the PV panel frame
Insert the T bolt in the rail slot and turn clockwise 90 degrees to engage the head into the
rail slot. For one panel configuration, insert T-bolt holder into T-Bolt for grounding panel to
rails.
Thread the 1/4” (7/16” socket head) collar nut onto the top of the T bolt as shown in Fig. 14
below. After positioning the end clamp firmly against the PV panel frame, tighten to 7.5 ft.
lbs.
Fig. 15: End Clamp, Collar Nut, and T-Bolt
Fig. 16: Ground wire mounting options
Installing Mid Clamps: A mid clamp is used between PV panels and produces a 1/2”
spacing between PV panel frames.
Insert the T bolt in the rail slot and turn clockwise 90 degrees to engage the head into the
slot
Thread the 1/4” (7/16” socket head) collar nut onto the top of the T bolt ash shown in Fig.
17 below. After positioning the end clamp firmly against the PV panel frame, tighten to 7.5
ft. lbs.
Fig. 17: Mid Clamp, Collar Nut and T Bolt
Fig. 18: Mid Clamp Installed