PHOTOWATT PW60HT-C-XF, Installation Manual

D81-P06-01 GB R5 

28/07/2020

www.photowatt.com

7

CABLE AND CONNECTOR PROTECTION

• 

Secure the cables to the mounting system 

using UVresistant cable ties. Protect exposed 

cables from damage by taking appropriate pre-

cautions (e.g. placing them inside a metallic 

raceway like EMT conduit). Avoid exposure to 

direct sunlight.

• 

A minimum bending radius of 60mm (2.36 in) is 

required when securing the junction box cables 

to the racking system.

• 

Do not place connectors in locations where wa-

ter could easily accumulate.

5.2

GROUNDING

• 

For grounding requirements in North Ameri-

ca, a module with exposed conductive parts is 

considered to comply with UL 1703 only when 

it is electrically grounded in accordance with 

both the instructions presented below and the 

requirements of the National Electrical Code. 

Any grounding means used with Canadian So-

lar Inc. modules should be NRTL certified to UL 

467 and UL 2703 standards. Please consult our 

technical service team for the formal approval 

process.

• 

For grounding requirements in other areas, al-

though the modules are certified to Safety 

Class II, we recommend them to be grounded 

and that module installation should comply 

with all applicable local electrical codes and re-

gulations. Grounding connections should be 

installed by a qualified electrician. Connect mo-

dule frames together using adequate groun-

ding cables: we recommend using 4-14 mm² 

(AWG 6-12) copper wire. Holes provided for this 

purpose are identified with a grounding symbol 

  All conductive connection junctions must 

be firmly fixed.

• 

Do not drill any extra ground holes for conve-

nience as this will void the modules warranty.

• 

All bolts, nuts, flat washers, lock washers and 

other relevant hardware should be made of 

stainless steel, unless otherwise specified.

• 

EDF ENR PWT does not provide grounding hard-

ware.

• 

One grounding method is recommended for 

EDF ENR PWT standard modules, as descri-

bed below. For alternative grounding methods, 

please refer to Annex B (Alternative Grounding 
Methods).

GROUNDING METHOD:

BOLT + TOOTHED NUT + CUP WASHER

• 

A grounding kit containing an M5 (3/16") SS cap 

bolt, an M5 (3/16") SS flat washer, an M5 (3/16") 

SS cup washer, and an M5 (3/16") SS nut (with 

teeth) is used to attach copper grounding wire 

to a pre-drilled grounding hole on the frame 

(see image above).

• 

Place the wire between the flat washer and the 

cup washer. Ensure that the cup washer is po-

sitioned between the frame and the wire with 

the concave side up to prevent galvanic cor-

rosion. Tighten the bolt securely using the SS 

toothed nut. A wrench may be used to do this. 
The tightening torque is 3-7 Nm (2.2-5.2 ft-lbs).

6.0
MOUNTING INSTRUCTIONS

• 

The mounting design must be certified by a re-

gistered professional engineer. The mounting 

design and procedures must comply with local 

codes and requirements from all relevant autho-

rities. The module is considered to be in com-

pliance with UL 1703 and IEC 61215 only when 

the module is mounted in the manner specified 

by the mounting instructions included in this 

installation manual.

• 

Any module without a frame (laminate) shall not 

be considered to comply with the requirements 

of UL 1703 unless the module is mounted with 

hardware that has been tested and evaluated 

with the module under this standard or by a field 

Inspection certifying that the installed module 

complies with the requirements of UL 1703. 

• 

EDF ENR PWT does not provide mounting hard-

ware.

• 

Standard modules can be mounted onto a sup-

port structure using one of several approved 

methods. One of such mounting methods is 

described below. For details of other mounting 

methods and the methods recommended by 

EDF ENR PWT for special module ranges, please 

refer to the Annex A (Alternative Mounting Me-

thods). For information about other installation 

methods, please contact your local representa-

tive. Failure to use a recognized installation me-

thod will void the EDF ENR PWT warranty.

• 

Use appropriate corrosion-proof fastening ma-

terials. All mounting hardware (bolts, spring 

washers, flat washers, nuts) should be hot dip 

galvanized or stainless steel.

• 

Use a torque wrench for installation.

• 

Do not drill additional holes or modify the mo-

dule frame.

• 

Doing so will void the warranty.