Installation manual

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INSTALLATION INSTRUCTIONS

PHOTOVOLTAIC MODULE

1210875HF4701

Printed in Japan

1.INTRODUCTION

• BEFORE INSTALLATION, OPERATION, AND MAINTENANCE, BE SURE TO READ THESE INSTRUCTIONS AND USE THE PV

MODULE SAFELY.

• FOR INSTALLATIONS IN THE USA, REFER TO THE NATIONAL ELECTRIC CODE (NEC) AND ALL APPLICABLE LOCAL CODES.

FOR INSTALLATIONS IN CANADA, REFER TO THE CANADIAN ELECTRIC CODE (CEC) AND ALL APPLICABLE LOCAL CODES.

•

FAILURE TO OBSERVE THE FOLLOWING INSTRUCTIONS MAY RESULT IN DEATH OR PERSONAL INJURY AND PROPERTY DAMAGE.

• KEEP THIS MANUAL FOR FUTURE INSPECTION.

En-1

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WARNING

1. GENERAL USE

• Avoid touching the front surface of the module with bare

hands.

• Do not handle except for installation and maintenance.

• Ensure that unauthorised personel, including children,

cannot get access to the modules.

2. GENERAL HANDLING

• DO NOT alter or remove any component.

• DO NOT stand or step on a module.

• DO NOT damage the front or rear surface of the PV

module. The rear surface may be damaged by sharp

objects.

• DO NOT throw or drop the PV module.

• DO NOT lift the module by the connectors or cables.

3. INSTALLATION

• Only licensed professionals should handle the modules.

• Secure yourself to avoid falling from the installation area.

• DO NOT use damaged the PV modules.

A damaged PV module may cause a fire and/or an

electrical shock with personal injury or even death.

• DO NOT expose the PV module to artificially

concentrated sunlight.

• Cover the front surface of the PV modules with an

opaque cloth to prevent the generation of high voltage

and current during installation.

• Fasten the PV modules to the mounting framework

securely to prevent the modules from falling due to wind

or snow loads. The modules should be installed as

written in this installation manual.

• Securely ground the PV module frame and the mounting

framework where local regulations require this.

• Install a residual current device (RCD) as prescribed by

the local regulations.

• DO NOT expose backside of the module to the sunlight.

• Do not install the modules in places where they can be

shaded by objects such as buildings and trees.

CAUTION

WARNING

• Connect required number of PV modules to meet the voltage

specification of equipment used in system.

Recommendation (see the enclosed specification sheet, too)

- Max. series: 12pcs due to max. system voltage

- Max. parallel: 2 strings due to fuse rating

• Connect the output cable connectors so that they do not

exert any force on the base of the cable at the junction box.

Attach the cable to the mounting framework using approved

fasteners.

The connectors should be placed behind the mounting

framework so that the connectors are not directly exposed to

sunlight, wind and rain.

• Do not apply external force (stepping, etc) to the connector.

• The PV module has a pair of male and female waterproof

connectors. For a series electrical connection, connect the

positive (+) connector of the first PV module to the negative (-)

connector of the following module.

• These modules employ UL Recognized connectors for the

output wiring. Final output field wiring should be done with

CCT9901-2352F (P51-6) (male), CCT9901-2452F (R51-6)

(female) from SMK and minimum 14 AWG copper wire cables

rated for 90°C (194°F).

These products will allow final system output wiring in

accordance with the U.S. National Electrical Code, NFPA

70-2008 or CEC accordingly.

Please refer to Article 690 of the NEC for additional guidance.

• To extend the cable, use proper commercial cables and

connectors that can withstand outdoor use for long periods.

Select the appropriate cable size according to its length to

avoid voltage drop.

Follow the cable manufactuer's instructions.

3.MAINTENANCE

• Maintenance must be made only by qualified personnel.

• Be sure the circuit breaker is off, if it's applicable. Always use

appropriate safety equipment (insulated tools, insulating

gloves, etc.).

• Be sure to cover the front surface of the PV modules with an

opaque cloth to block sunlight when connecting or

disconnecting connectors of modules.

ANNUAL INSPECTION

• Check if nuts, bolts of mounting framework are secure and

not loose. Tighten all loose components.

• Check connections of cables, grounding cables and connectors.

• Check all electrical and mechanical connections for

freedom from corrosion.

• Check the ground resistance of metal parts such as the

module frames and the mounting framework.

Others

• Clean glass surface of module when glass surface is dirty.

(Wash or wipe only glass surface of module without using

detergent.)

2-4-4. Method #4 (use of bolt and nut for mounting hole)

• All hardware used in this method must be stainless steel.

- Examples of

acceptable grades of

stainless steel are

18-8, 316, and 410

• 1 1/4” bolt and double

nuts of No.5/16 diameter

(or M8) shall be used to

mount the PV module to

the mounting structure

through the mounting

hole (which has a

diameter of 9mm).

• Torque to secure bolt: 5N·m (3.7 ft-lb)

• External toothed stainless steel washers shall be inserted

between the module frame and ring washer, and also

between mounting structure and ring washer.

• Spring washer shall be used to avoid loosening of bolt

• All 4 mounting holes of each PV module must be secured to

the mounting structure

• 2 of the 4 locations must have external toothed washers

utilized

• All four locations shall have 2 nuts installed

• A grounding electrode system for the mounting structure

must be provided in accordance with the NEC or CEC

accordingly.

• Recommended mounting structure characteristics;

- Alloys with resistivity less than 1.61 micro-ohms / inch

- Wall Thickness of at least 1/8”

2-4-5. Method #5 (WEEB clips/ barbed washers and associated

racking)

• Barbed washers listed to UL467 intended for use in bonding

photovoltaic modules to mounting structures may be used

for grounding as described in NEC or CEC accordingly.

• When installing the WEEB UMC Clip or UniRac UGC-1 Clip,

as a means of grounding the modules, tighten the mounting

bolt to 13.5N·m (10lb-ft).

• Barbed washers identified for grounding must be installed in

accordance with the manufacturer's specified instructions.

• Recommended mounting structures that accommodate

barbed washers are manufactured by UNIRAC.

• Approved options of WEEB clips/ barbed washers to be

used in conjunction with UNIRAC racking solution are:

o WEEB UMC clip

o UNIRAC UGC-1 clip

Note: Barbed washers are intended for one time use only.

If a module is removed, replaced, repositioned or

remounted, the associated barbed washer(s) must be

replaced. Follow instructions of the manufacturer.

ELECTRICAL SPECIFICATIONS

The electrical characteristics are within ±10% of the indicated values of Isc, Voc, and within +5/-0% of Pmax under

standard test conditions (irradiance of 1000 W/m

, AM1.5 spectrum, and a cell temperature of 25°C (77°F)).

Standard: IEC61215 ed. 2 (2005), IEC61730 ed. 1 (2004) Application Class A, UL1703

MODEL

PV-MLE255HD

PV-MLE260HD

PV-MLE265HD

PV-MLE270HD

PV-MLE275HD

TOLERANCE

Pmax

255 W

260 W

265 W

270 W

275 W

Voc

37.8 V

38.0 V

38.2 V

38.4 V

38.6 V

Isc

8.89 A

8.98 A

9.08 A

9.18 A

9.28 A

Vmp

31.2 V

31.4 V

31.7 V

31.9 V

32.2 V

Imp

8.18 A

8.29 A

8.38 A

8.48 A

8.58 A

*1 [A]

*2 [A]

12.5

MAXIMUM SYSTEM VOLTAGE

600V (UL), 1000V (IEC)

(IEC61215, IEC61730, UL1703)

SYMBOLS DEFINITION

Pmax

Voc

Isc

Vmp

Imp

MAXIMUM POWER

OPEN CIRCUIT VOLTAGE

SHORT CIRCUIT CURRENT

MAXIMUM POWER VOLTAGE

MAXIMUM POWER CURRENT

FUSE RATING BASED ON

MAX. BYMASS DODE AMPACITY WITHIN PV MODULE

MINIMUM BYPASS DIODE RATING

+5/-0% OF NOMINAL VALUE

2-5. WIRING

• DO NOT short the positive and

negative cables.

• Make sure connectors are fully

engaged without a gap between

the insulators and shall be locked.

In case there is a gap, a fire and/or

an electrical shock may occur.

• Use the appropriate tool provided by SMK for disconnection.

WARNING

Fig. 6 Grounding method #4

ETL LISTED

CONFORMS TO STANDARD UL 1703

CERTIFIED TO ULC ORD C1703

2 Nuts (Stainless steel, 5/16(M8))

Ring washer

(Stainless steel, 5/16)

Toothed Washer

(Stainless steel, 5/16)

Mounting structure (Alminium)

Toothed Washer

(Stainless steel, 5/16)

Ring washer

(Stainless steel, 5/16)

Spring washer (Stainless steel, 5/16)

Bolt (Stainless steel, 5/16 (M8))

* 8 7 5 H F 4 7 0 1 *

Summary of content (4 pages)

PAGE 1
ETL LISTED CONFORMS TO STANDARD UL 1703 CERTIFIED TO ULC ORD C1703 PHOTOVOLTAIC MODULE INSTALLATION INSTRUCTIONS 1.INTRODUCTION • BEFORE INSTALLATION, OPERATION, AND MAINTENANCE, BE SURE TO READ THESE INSTRUCTIONS AND USE THE PV MODULE SAFELY. • FOR INSTALLATIONS IN THE USA, REFER TO THE NATIONAL ELECTRIC CODE (NEC) AND ALL APPLICABLE LOCAL CODES. FOR INSTALLATIONS IN CANADA, REFER TO THE CANADIAN ELECTRIC CODE (CEC) AND ALL APPLICABLE LOCAL CODES.
PAGE 2
1-1. STRUCTURE φ4.09[φ0.16](4 PLACES) φ9[φ0.35](4 PLACES) 1625[64.0] Ａ−Ａ(1:2) Ｂ１２３４５６ＷＷＶＶＡＡＡＡ 9 φ4.0 6] 1 [φ0. C(1:2,4 PLACES) D 1200[47.2] φ4.09[φ0.16](4 PLACES) φ9[φ0.35] 21.5[0.85] 30[1.18] E(1:2,4 PLACES) Drainage holes E 46[1.81] 10[0.39] 1-2. MULTIPLYING FACTOR 10[0.39] C 1000[39.4] Grounding Mark 6[0.24] Ｂ 1167[45.9] 46[1.81] ＡＡ D(1:2,4 PLACES) B−B(1:2) Ｂ Grounding Mark φ4 [φ0 .09 .16 ] （−） 1019[40.1] （＋） 24.5[0.96] 25.3[1.00] Ｖ 6[0.
PAGE 3
2-4-1. Method #1 (use of self-tapping screw) • Secure the stainless steel screw (M5 or No.10) with 32 threads per inch to the grounding hole by 2.3N·m (20lbf-in). • Ensure that 2 threads are engaged in the module frame. • As shown in the figure 3, copper wire should be compressed by the screw head. • Stainless steel washer with appropriate corrosion resistant coating should be inserted between copper wire and screwhead.
PAGE 4
2-4-4. Method #4 (use of bolt and nut for mounting hole) • All hardware used in this method must be stainless steel. - Examples of Bolt (Stainless steel, 5/16 (M8)) Spring washer (Stainless steel, 5/16) acceptable grades of Ring washer stainless steel are (Stainless steel, 5/16) 18-8, 316, and 410 Toothed Washer • 1 1/4” bolt and double (Stainless steel, 5/16) Mounting structure (Alminium) nuts of No.