Unirac UNI-310823-1P Roof Mount End Clamp Installation Guide
- June 3, 2024
- UNIRAC
Table of Contents
UNI-310823-1P Roof Mount End Clamp
RMDT INSTALLATION GUIDE
TABLE OF CONTENTS:
Tools & Specifications System Components System Level Fire Code Compliance
Locate Array & Place Bays Place Ballast Place Modules & Attach Clamps Attach
Clamps Module Installation & Wire Management Connect Grounding Lug
PG TABLE OF CONTENTS (CONT):
1 Mechanical Loading Compliance 2 Bonding & Grounding System Certification 3
Bonding & Grounding System Certification 4 Bonding & Grounding Electrical
Diagram 5 Temporary Bonding Procedures 6 Installation Supplement 7 Ballast
Bay(s) Roof Attachment 8 Microinverter Install & Wire Mgmt. 9
PG GENERAL NOTES:
10 If provided refer to construction drawings for 11 project specific details.
Construction drawings have 12 precedence over these installation guidelines.
13 14
A B
P U B2022A P R18
RMDT
TOOLS & SPECIFICATIONS 1
TECHNICAL DATA SHEET PAGE
TECHNICAL SPECIFICATIONS:
Material Types: 16G ASTM A653 GR50 Steel
Coating(s): G235 Galvanization, G180 Galvanization, G40 Galvinization +
InterCoat® ChemGuard, G60 Galvinization + InterCoat® ChemGuard or G80
Galvinization + InterCoat® ChemGuard
Hardware: Stainless Steel
Bonding and Grounding: UL2703 Listed Continuous Bonding Path.
TOOLS REQUIRED OR RECOMMENDED FOR LAYOUT, ATTACHMENTS & INSTALLATION:
· Drill (Do Not Use An Impact Driver) · 7/16″ Socket · Torque Wrench · Tape
Measure · Chalk Reel · Optional Spacers (See Diagram – Page Right)
GENERAL HARDWARE:
· ¼-20 X 2 ½” Hex Head Bolt – Module Clamps · ¼-20 Stainless Steel U-Nuts
SAFETY:
All applicable OSHA safety guidelines should be observed when working on a PV
installation job site. The installation and handling of PV solar modules,
electrical installation and PV racking systems involves handling components
with potentially sharp metal edges. Rules regarding the use of gloves and
other personal protective equipment should be observed.
LAYOUT ASSISTANCE TOOL:
Module Dimensions:
RMDT
Module Length (ML) =
1
Module Width (MW) =
2
Prefered module gap?
3
(1/4″ – 1″ is permissible)
4
East/West Module Gap (G) =
5
6
Module location:
Valley N/S Column Spacing = Edge Valley N/S Column Spacing =
Edge E/W Row Spacing = E/W Row Spacing =
Ridge N/S Column Spacing = Edge Ridge N/S Column Spacing =
Spacing Equations (in Inches):
ML+G-19.70″ ML+G/2-29.55″ (MW x 0.990) – 15.69″ (MW x 0.990) – 11.20″
ML+G-26.20″ ML+G/2-39.30″
SPACERS – OPTIONAL
VALLEY COLUMN SPACING
EDGE VALLEY COLUMN SPACING
EDGE E/W ROW SPACING
x
E/W ROW SPACING
RIDGE N/S COLUMN SPACING
EDGE RIDGE N/S COLUMN SPACING
x
RMDT
SYSTEM COMPONENTS 2
TECHNICAL DATA SHEET PAGE
BALLAST BAY: The Ballast Bay is constructed of a high strength low alloy steel with a coating to protect against corrosion. This system has a modular design that allows for easy installation around roof obstructions and accommodates roof undulations. The Ballast Bays are designed to nest within each other to optimize shipping logistics. NOTE: Systems installed on PVC roofs require ballast bays with preinstalled Santoprene pads.
CLAMP & HARDWARE: The Module Clamp is made of Stainless Steel and can be used with module frame heights indicated on the clamp. The clamps are a portion of the UL2703 Listed system when installed according to this installation guide. A ¼-20 stainless steel bolt and u-nut are the associated hardware for installing clamps.
RIDGE BALLAST BLOCK: The Ridge ballast bay can fit up to 5 standard 4″x8″x16″ solid concrete cap blocks. Block weight can range from 26 38 lbs and shall meet ASTM C1491 requirements for freeze thaw durability. Verify your block weights before using the Unirac U-builder online design tool
VALLEY BALLAST BLOCK: The Valley ballast bay can fit up to 2 standard 4″x8″x16″ solid concrete cap blocks. Block weight can range from 26 38 lbs and shall meet ASTM C1491 requirements for freeze thaw durability. Verify your block weights before using the Unirac U-builder online design tool.
OPTIONAL WIRE MANAGEMENT: Custom Unirac wire clip along with mounting options
for various off the shelf wire management clips.
NOTE: All conduit and wire ways should be grounded & bonded per the (NEC)
National Electric Code.
OPTIONAL MICROINVERTER MOUNTING: Microinverter / Power optimizer bracket, see page B for additional instructions.
RMDT SYSTEM LEVEL FIRE CODE COMPLIANCE 3 INSTALLATION GUIDE PAGE
SYSTEM LEVEL FIRE CLASSIFICATION: The system fire class rating is only valid
when the installation is conducted in accordance with the assembly
instructions contained in this manual. RM ROOFMOUNT has been classified to the
system level fire portion of UL2703. It has achieved Class A performance for
low sloped roofs when used in conjunction with type 1 and type 2 module
constructions. Please see the specific conditions below for mounting details
required to maintain the Class A fire rating. Minimum and maximum roof slopes
are restricted through the system design and layout rules. The fire
classification rating is only valid on roof pitches less than 2:12 (slopes < 2
inches per foot, or 9.5 degrees).
NOTE: Type I or Type II information is generally located on back of modules or
through manufacturers documentation. Some building codes and fire codes
require minimum clearances around such installations, and the installer should
check local building code requirements for compliance.
Module Type Type 1 Type 2
System level Fire Rating Class A Class A
Mitigation None Required / No Limitations None Required / No Limitations
TYPE 1 / TYPE 2 CLASS A FIRE RATING MOUNTING ORIENTATION Unirac RM Dual tilt has achieved Class A system level fire performance for type 1 and type 2 module constructions. There are no provisions necessary in order to meet Class A requirements for this product.
Unirac RM CONFORMS TO UL STD2703
RMDT
LOCATE ARRAY & PLACE BAYS 4
INSTALLATION GUIDE PAGE
N
N
x
x
FILL IN BAYS
SPACERS – OPTIONAL
PERIMETER COLUMN SPACER
COLUMN SPACER
E/W EDGE ROW SPACER
x
ROW SPACER
Module bays have a score line on all 4 sides marking centerline
SNAP WEST PERIMETER CHALK LINE, THEN NORTH OR SOUTH PERIMETER CHALK LINE. As
best practice, mark lines on perimeter chalk lines to locate center of bays
PLACE WEST PERIMETER BAYS FIRST, THEN NORTH OR SOUTH PERIMETER BAYS. If slip
sheets are required, place per manufacturer recommendations.
NOTE: Custom spacers can be made to aid in the placement of bays on the roof.
See page 1.
INSTALL U-NUT It is recommended to install u-nuts prior to placing ballast
blocks & modules on the bays.
NOTE: U-NUT – Single Use Only – Do not re-torque once fully seated
NOTE: If mechanical attachment is required, place prior to installation of
modules.
RMDT
PLACE ALL BALLAST: A maximum of 2 ballasts can be placed in valley bay, and up
to 5 ballasts can be placed in the ridge. Site specific ballast calculations
should be created for each individual project in accordance with the U-Builder
design software. This system has been rated for the mechanical load provisions
of UL2703. In addition, it has been designed and tested to comply with the
more rigorous requirements of SEAOC PV1, PV2 and ASCE 7.
PLACE BALLAST 5
INSTALLATION GUIDE PAGE
VALLEY BALLAST BLOCK OPTIONS:
RIDGE BALLAST BLOCK OPTIONS:
RMDT MODULE PLACEMENT & ATTACH CLAMPS 6 INSTALLATION GUIDE PAGE
N
N
WESTERN EDGE MODULE PLACEMENT. Tabs on valley and ridge bay provide mechanical
stop and aid in proper spacing at ridge. Rows of modules must be wired
together at this time. See page 8 for wire management options.
NOTE: Modules may be placed on bays without immediate installation of clamps.
Column Spacing: 1 inch maximum gap between modules / ¼ inch minimum gap
between modules.
EAST OR WEST EDGE MODULE PLACEMENT. Rows of modules must be wired together at
this time. See page 8 for wire management options.
NOTE: Clamps should be installed for each East/West pair of rows after wiring
has been completed.
NOTE: Wiring,wire management,and electrical QC should be done as each row is
built.
INSTALL CLAMPS
NOTE: U-NUT – Single Use Only – Do not re-torque once fully seated NOTE: CLAMP
AND BOLT – Single Use Only – Do not re-torque once fully seated
TORQUE VALUE: 7FT-LBS to achieve UL2703 required clamp load
Mounting surface for module on east and west
perimeters
Mounting surface for modules between rows
Tabs for spacing at ridge
PROPER VALLEY BAY ORIENTATION AT EAST AND WEST PERIMETERS:
· Valley bays are designed to tuck up underneath the modules for east and west
perimeters
· Bent tabs on all mounting surfaces act as a mechanical stop for the modules
PROPER INTER-ROW SPACING:
· Inter row spacing at the valley is designed to provide an 8″ space for
walkways
· Bent tabs on all mounting surfaces act as a mechanical stop for the modules
CLOSE UP MOUNTING AT RIDGE:
· Bent tabs on the mounting surfaces aid in setting the correct gap between
modules at the ridge
RMDT
Physical contact on side of module frame will prevent
rotation under torque
X
Correct Orientation
Incorrect Orientation
ATTACH CLAMPS 7
INSTALLATION GUIDE PAGE
Module Frame Height must fall within proper range stamped on clamp
PROPER MID CLAMP INSTALLATION
· The top of the clamp is stamped for module frame height. · Clamp should be
firmly held against module frame while being torqued
PROBLEM CLAMP NOT ORIENTED CORRECTLY
Physical contact must be maintained on alignment
tabs as bolt is torqued
Apply Pressure here to keep clamp firm against
module frame
No gap should be present
while torquing clamp down to specifications.
PROBLEM NOT USING PROPER SIZE OF CLAMP FOR MODULE FRAME HEIGHT
· Double check the stamping on clamp to use the correct leg of clamp for
module frame height
· The module height shall fall within the range shown on the top of the clamp
Module Frame Height must fall within proper range stamped on clamp
Clamp installed with improper range for module height
PROPER CLAMP INSTALLATION:
· Clamp is stamped for module frame height on each leg · Clamp should be
firmly held against module frame while being torqued
PROBLEM CLAMP NOT SEATED AGAINST MODULE DURING TORQUING
· Clamp needs to be held securely against the module frame during torquing for
proper installation
PROBLEM NOT USING PROPER SIZE OF CLAMP FOR MODULE FRAME HEIGHT
· Double check the stamping on clamp to use the correct leg of clamp for
module frame height · The module height shall fall within the range shown on
the top of the clamp · Excessive angle on clamp will inhibit required clamp
load on module
RMDT MODULE INSTALLATION & WIRE MGNT. 8 INSTALLATION GUIDE PAGE N
Heyco S6405 Clip
FILL IN ALL MODULES. Wire each row as modules are installed, and secure the modules in place after each east/west row pair is complete.
WIRE MANAGEMENT: Unirac provides a custom clip for wire management. Additional holes are included in the bay to accommodate other off the shelf wire management clips.
N
N
WIRE MANAGEMENT OPTION 1: Wire and bundle all east facing modules, run east facing bundle down north perimeter (or south perimeter) and vice versa for all west facing modules
WIRE MANAGEMENT OPTION 2: Wire and bundle all east facing modules, wire and bundle all west facing modules. Run bundles along north or south perimeter
RMDT
CONNECT GROUNDING LUG 9
INSTALLATION GUIDE PAGE
GROUNDING LUG MOUNTING DETAILS AS REQUIRED BY CODE & ENGINEER OF RECORD: The
Ilsco lug has a green colored set screw for grounding indication purposes. One
lug is recommended per continuous array, not to exceed 150ft X 150ft.
Unirac ROOFMOUNT is intended to be used with PV modules that have a system
voltage less than or equal to that allowable by the National Electric Code
(NEC). It is the installer’s responsibility to check adherence to local codes.
NOTE: The installation must be conducted in accordance with the National
Electric Code ANSI / NFPA 70.
Ground Lug Ilsco Lug SGB-4 Ilsco Lug GBL-4
Wiley 6.7
Bolt Size 1/4″-20 #10-32 1/4″-20
Torque Value 6.5 ft-lbs (75 in-lbs) 2.9 ft-lbs (35 in-lbs) 10 ft-lbs (120 in- lbs)
NOTE: In order to prevent corrosion induced by dissimilar metals, it is important to verify that the bare copper wire does not come into contact with aluminum or galvanized steel. These materials must be kept separate. Although conformance with UL2703 was demonstrated without the use of oxide inhibitor material, it is recommended by Ilsco to provide an optimized bonding solution for their lay-in lug.
Ilsco GBL-4 Solar Grounding & Bonding
GROUNDING NOTE:
Can be installed on any location with a flat surface on the bay in order to
ground the system.
Wiley WEEB-Lug 6.7 Solar Grounding & Bonding
Ilsco GBL-4 Solar Grounding & Bonding
Ilsco SGB-4 Solar Grounding & Bonding
TERMINAL TORQUE: Install conductor and torque to the following: 4-14 AWG: 35 in-lbs
TERMINAL TORQUE:
Install Conductor and torque to the following: 4-6 AWG: 35 in-lbs, 8AWG: 25
in-lbs
TERMINAL TORQUE:
Install Conductor and torque to the following: 4-6 AWG: 10 ft-lbs, 6-14 AWG: 7
ft-lbs
RMDT
MECHANICAL LOADING COMPLIANCE 10
INSTALLATION GUIDE PAGE
MECHANICAL LOAD TEST QUALIFICATION
The Unirac RM system has been tested to the mechanical load provisions of
UL2703 and covers the following basic parameter(s):
· Tested loads: 25.87 psf up, 54.3 psf down, 7.5 psf down-slope ·
Certification Loads: 17.24 psf up, 36.2 psf down, 5 psf down-slope
· PV modules may have a reduced load rating, independent of the RMDT load
rating. Please consult the PV module manufacturer’s installation guide for
more information.
TESTED MODULE
Module Manufacturer Module Area Model / Series
Jinko
27.76 sq ft JKMxxxM-72HL4-V
RMDT
BONDING & GROUNDING
SYSTEM
CERTIFICATION
11
INSTALLATION GUIDE PAGE
ELECTRICAL BONDING & GROUNDING TEST MODULES: This racking system may be used to ground and/or mount a PV module complying with UL1703 or UL61730 only when the specific module has been evaluated for grounding and/or mounting in compliance with the included instructions. VERIFIED COMPATIBLE MODULES:
Manufacture Aionrise Aleo Aptos
Astronergy AU Optronics Auxin
Axitec
Boviet BYD
Canadian Solar
Module Model / Series
AION60G1, AION72G1
P18 & P19 S18, S19, S59, & S79
DNA-120-MF10 DNA-120-(MF/BF)26 DNA-144-(MF/BF)26
CHSM6610(P/M)/HV CHSM6612(P/M)/HV CHSM72(P/M)-HC CHSM72M(DG)/F-BH
PM Series
AXN6M610T, AXN6P610T AXN6M612T, AXN6P612T
AC-xxx(M/P)/(60/72)(S/V) AC-xxxP/156-60S AXIpremium X HC: AC-
xxxMH/(120/144)(S/V) AXIblackpremium X HC: AC-xxxMH/(120/144)(SB/VB)
AXIpremium XL HC: AC-xxxMH/120(S/V) AXIblackpremium XL HC: AC-xxxMH/120(SB/VB)
BVM6610 & BVM6612
P6K Series, MHK
CS1(K/H/U/Y)-MS CS3(U/K)-MB-AG CS3K-(MB/MS/P/PB) CS3L-(P/MS) CS3N-MS
CS3U-(MB/MS/P/PB/PB-AG) CS3W-(P/P-PB-AG) CS5A-M CS6K-(M/MS/P) CS6P-(M/P)
Manufacture
Module Model / Series
Canadian Solar (cont.)
CS6U-(M/P) CS6V-M CS6X-P ELPS CS6(P/A)-MM
Centrosolar America
C-Series & E-Series
CertainTeed
CTxxxMxx-(01/02/03/04) CTxxxPxx-01
ET Solar
ETAC & ET Modules ET-M672BHxxxTW
Eco Solargy
Orion 1000 & Apollo 1000
Flextronics
FXS
FreeVolt
PVGraf
GCL
GCL-P6 & GCL-M6 Series
Hansol
TD-AN3, TD-AN4, UD-AN1 & UB-AN1
Hanwha SolarOne HSL 60 & HSL 72
Heliene
36M, 60M, 60P, 72M & 72P Series 144HC M6
HT-Solar
HT72-156(M/P), HT72-156P-C, HT72-156P(V)-C HT60-156M-C, HT60-156M(V)-C
Hyundai Heavy Industries
MG, TG, RG, KG, MI, RI, KI, HI & TI Series HiA-SxxxHG, HiD-SxxxRG(BK), HiS- S400PI
ITEK
iT, iT-HE & iT-SE Series
Japan Solar
JPS-60 & JPS-72 Series
JA Solar
JAP6-60, JAM6-60 JAP6-72, JAM6-72 JAP6(k)-60-xxx/4BB, JAP60S##-xxx/ JAM6(k)-60-xxx/, JAM60S##-xxx/**
Manufacture JA Solar (cont.)
Jinko
Kyocera LA Solar LG Electronics
Module Model / Series
JAP6(k)-72-xxx/4BB, JAP72S##-xxx/ JAM6(k)-72-xxx/, JAM72S##-xxx/ i. ##:
01, 02, 03, 09, 10 ii. : SC, PR, BP, HiT, IB, MW, MR ** = Backsheet, ## Cell
technology
JKMxxx(P/PP)-60, JKMxxxPP-60(Plus) JKMxxxPP-60B, JKMxxxM-60
JKMxxxM-60(B/L/HL/BL/LV) JKMxxxM-60-V, JKMxxxPP-60B-J4 JKMSxxxM-60 JK07(A/B)
JKMSxxx(P/PP)-60, JKMSxxxPP-60B-J4 JKMxxx(M/P/PP)-72, JKMxxx-72L-V JKMxxxM-
72L-V, JKMxxxM-72HL(4)-V JKMxxx(M/PP)-72-V, JKMxxxPP-72(Plus) JKMxxx(P/PP)-72B
JKMSxxx-72, JKMSxxx(P/PP)-72 JKMxxxM-7RL3-V
KD-F Series
LSxxxHC
LGxxx(E1C/E1K/N1C/N1K/N2T/N2W/S1C/S2W/Q1C/ Q1K)-A5
LGxxx(A1C/M1C/M1K/N1C/N1K/Q1C/Q1K/QAC/ QAK)-A6 LGxxxN2T-B5 LGxxxN1K-B6
LGxxx(N1C/N1K/N2T/N2W)-E6 LGxxxN2T-J5 LGxxx(N1K/N1W/N2T/N2W)-L5
LGxxx(M1C/N1C/Q1C/Q1K)-N5 LGxxx(N1C/N1K/N2W/Q1C/Q1K)-V5 LGxxxN3K-V6
· Unless otherwise noted, all modules listed above include all wattages and specific models within that series. Variable wattages are represented as “xxx” · Items in parenthesis are those that may or may not be present in a compatible module’s model ID · Slashes “/” between one or more items indicates that either of those items may be the one that is present in a module’s model ID
RMDT
BONDING & GROUNDING
SYSTEM
CERTIFICATION
12
INSTALLATION GUIDE PAGE
ELECTRICAL BONDING & GROUNDING TEST MODULES: This racking system may be used to ground and/or mount a PV module complying with UL1703 or UL61730 only when the specific module has been evaluated for grounding and/or mounting in compliance with the included instructions. VERIFIED COMPATIBLE MODULES (CONTINUED):
Manufacture
Module Model / Series
Manufacture
Module Model / Series
Manufacture
Module Model / Series
LONGi
LR6-60, LR6-60(BK/PE/PB/PH/HPB/HIB/HPH/HIH) LR6-72, LR6-72(BK/HV/PE/PB/PH/HPH/HIH) LR4-60(HPB/HIB/HPH/HIH) LR4-72(HPH/HIH)
Mission Solar Energy
MSE MONO & MSE PERC
Mitsubishi
MJE & MLE Series
Neo Solar Power D6M Series
Co.
Phono Solar Tech. Standard Modules
Panasonic
VBHNxxxSA(15/16) VBHNxxxKA(01/02) VBHNxxxSA17(G/E) & SA18(E) VBHNxxxKA(03/04) EVPVxxx EVPVxxx(H/K/PK)
Peimar
SGxxxM (FB/BF), SMxxxM
Prism Solar
P72 Series
Q.Cells
Q.PRO L-G2 Q.PEAK (BLK) (G3/G3.1) Q. PLUS/PRO G3, Q.PLUS BFR G3.1 Q.PRO/PLUS G4 Q.PLUS/PEAK/PRO – L G4.x B.LINE PLUS/PRO – L G4.x Q.PRO BFR G4x Q.PEAK (BLK) G4.1 (TAA/MAX) Q.PLUS BFR G4.1(TAA/MAX) B.LINE (PLUS/PRO) BFR G4.1 Q.PLUS L-G4.2/TAA Q.PRO EC-G4.4 Q.PEAK DUO (BLK) G5 Q.PEAK DUO L-(G5/G5.1/G5.2/G5.3) B.LINE PEAK DUO L-(G5/G5.1/G5.2/G5.3)
Q.Cells
REC Renesola Risen SEG Solar
Q.PEAK DUO (BLK)-G6+ Q.PEAK DUO BLK-G6+/TS Q.PEAK DUO L-(G6/6.2/6.3) Q.PEAK
DUO (G7/G7.2) Q.PEAK DUO (BLK)-G7 Q.PEAK DUO L-(G7/G7.1/G7.2/G7.3/G7.7) B.LINE
PEAK DUO (G7/G7.2) B.LINE PEAK DUO L-(G7/G7.1/G7.2/G7.3) Q.PEAK DUO (BLK)
G8(+) Q.PEAK DUO L-(G8/G8.1/G8.2/G8.3/G8.3 BFF) Q.PEAK DUO (BLK) ML G9(+)
Q.PEAK DUO XL (G9/G9.2/G9.3) Q.PEAK DUO BLK-G10(+) Q.PEAK DUO G10+ Q.PEAK DUO
(BLK) ML-G10(.a)(+) Q.PEAK DUO BLK G10+ /AC Q.PEAK DUO
XL-(G10/G10.2/G10.3/G10.c/G10.d) Q.PEAK DUO XL-(G11.2/G11.3)
PEAK & ECO RECxxxAA (BLK/Pure) RECxxxNP (N-PEAK) RECxxxNP2 (Black) RECxxxPE,
RECxxxPE72 RECxxxTP RECxxxTP2(BLK2) RECxxxTP2S(B)(XV) RECxxxTP3M (Black)
RECxxxTP4 (Black)
60 Cell Modules & Vitrus2
RSM60-6, RSM72-6, RSM144-6
SEG-xxx-BMD-HV
Seraphim
Sharp
Silfab
Solaria SolarTech SolarWorld Suniva
SunPower
SunTech Sun Edison/Flextronics S-Energy Talesun Tesla Trina
SEG-(6PA/6PB/6MA/6MA-HV/6MB/E01/E11) SRP-(6QA/6QB) SRP-xxx-6MB-HV, SRP-320-375
-BMB-HV, SRP-xxxBMC-HV, SRP-390-415-BMA-HV, SRP-390-405BMD-HV
ND-24CQCJ, ND-25CQCS ND-Q235F4, ND-F4Q300 NU-SA, NU-SC
SLA-M/P, SLG-M/P SILxxx(BL/NL/NT/HL/ML/BK/NX/NU/HC)
PowerXTxxxR-PD/BD/AC PowerXTxxxC PowerXT-xxxR-PM (AC)
STU HJT & STU PERC
Sunmodule Protect/Plus
Optimus Series, MV Series
X-Series 72 & E-Series 72 X-Series 96 & E-Series 96 P-Series, Sig Black SPR
E20 435 COM (G4 Frame) Axxx-BLK-G-AC, SPR-Mxxx-H-AC
STP XXX, STPXXXS – B60/Wnhb
F-Series / FLEX FXS, R-Series / FLEX FXS
SN72, SN60 Series
TP572, TP596, TP654, TP660 TP672, Hipor M, Smart
TxxxS, TxxxH
PA05, PD05, DD05, DD06, DE06, DE09.05 PD14, PE14, DD14, DE14, DE15, DE15V(II)
DE18M(II), DE19
· Unless otherwise noted, all modules listed above include all wattages and specific models within that series. Variable wattages are represented as “xxx” · Items in parenthesis are those that may or may not be present in a compatible module’s model ID · Slashes “/” between one or more items indicates that either of those items may be the one that is present in a module’s model ID
RMDT
BONDING & GROUNDING
SYSTEM
CERTIFICATION
13
INSTALLATION GUIDE PAGE
ELECTRICAL BONDING & GROUNDING TEST MODULES: This racking system may be used to ground and/or mount a PV module complying with UL1703 or UL61730 only when the specific module has been evaluated for grounding and/or mounting in compliance with the included instructions. VERIFIED COMPATIBLE MODULES (CONTINUED):
Manufacture Upsolar URE
Vikram VSUN Winaico Yingli
ZNShine Solar
Module Model / Series
UP-Mxxx
D7KH8A, D7M(H7A/H8A) FAKxxx(C8G/E8G), FAMxxxE7G-BB FAMxxxE8G(-BB), FBKxxxM8G
Eldorado, Solivo & Somera PREXOS VSMDHT.60.AAA.05 PREXOS VSMDHT.72.AAA.05
VSUNxxx-60M-BB, VSUNxxx-72MH VSUN400-415-144BMH
WST & WSP Series
YGE 60 Cell YGE 60 Cell Series 2 YLM 60 YLM 72 YLM-VG ZXM6-72 Series,
ZXM6-NH144
· Unless otherwise noted, all modules listed above include all wattages and specific models within that series. Variable wattages are represented as “xxx” · Items in parenthesis are those that may or may not be present in a compatible module’s model ID · Slashes “/” between one or more items indicates that either of those items may be the one that is present in a module’s model ID
RMDT
BONDING & GROUNDING
ELECTRICAL
DIAGRAM
14
INSTALLATION GUIDE PAGE
Note: In order to avoid the need for utilizing bonding jumpers during
maintenance or module removal do not attach the groung lug to a:
1. valley bay with less than two modules 2. ridge bay with less than three
modules
Fault Current Ground Path Ground Lug
Grounding Clip & Bolt
Min. 10 AWG Copper Wire
Module Frame Module Bay w/ Grounding Clips
RMDT
TEMPORARY BONDING PROCEDURES 15
INSTALLATION GUIDE PAGE
TEMPORARY GROUNDING & BONDING PROCEDURE: Periodic inspections should be
conducted on the PV array to ensure there are not loose components, loose
fasteners or corrosion. If any of the above items are found, the affected
components are to be immediately replaced.
NOTE: If a module must be removed or replaced, a temporary bonding jumper must
be used to ensure safety of the personnel and PV system.
NOTE: Removing a PV module from a system is not considered to be routine
maintenance. This type of activity should only be performed by trained and
qualified installers. NOTE: In order to prevent corrosion induced by
dissimilar metals, it is important to verify that the bare copper wire does
not come into contact with aluminum or galvanized steel. These materials must
be kept separate.
APPROVED LUGS and Terminal Torque see Page 9
BONDING JUMPER REQUIRED: One example of a module removal that will require the use of a bonding jumper
Bare Copper Wire
ATTACH LUGS: Use approved lug(s) to install on adjacent bays where the module is being removed.
INSERT COPPER WIRE: Insert bare copper wire into each lug, providing a bonding
jumper across the missing module location.
Remove module & reverse the operation after maintenance is complete
BONDING JUMPER NOT REQUIRED, due to integrated bonding/grounding path
throughout module frames/ bays around this location.
NOTE: CLAMP AND BOLT – Single Use Only – Use new clamps after any module
replacements or system maintenance.
RMDT
BALLAST BAY ROOF ATTACHMENT A
INSTALLATION GUIDE – SUPPLEMENT PAGE
VALLEY BAY VALLEY BAY VALLEY BAY VALLEY BAY
STEP 1 – POSITION U-ANCHOR: Position U-Anchor under bay requiring attachment
and install according to manufacturer installation instructions.
NOTE: Position attachment so that it is close to center of the bay as
possible.
PLACE NUT AND WASHER: Include the nut and washer on the anchor stud prior to placing the stud through the strut.
STEP – 3 PLACE H-STRUT: Position H-strut sections on bay as pictured above. Align the cross-strut with the anchor’s stud. Connect side strut sections to cross strut using a strutnut, bolt, and washer as pictured.
STEP 4 – SECURE H-STRUT TO U-ANCHOR: Place 3/8″ washer and 3/8-16 serrated
flange nut on anchor stud, serrations facing down and tighten to 30 ft-lb.
TORQUE VALUE: 30FT-LBS
RMDT MICROINVERTER INSTALL & WIRE MGMT. B INSTALLATION GUIDE – SUPPLEMENT PAGE
PRE-INSTALL MICROINVERTERS: Install MLPE in a location on the module that will
not interfere with ballast bays or grounding lugs. To use trunk cable most
efficiently, install MLPE components in the same locations on all modules in
the same row. TORQUE VALUE: 20FT-LBS