PHOTOWATT PW60HT-C-XF, Installation Manual

D84-P06-01 GB R2 

28/07/2020

www.photowatt.com

6

are considered acceptable for use with Cana-

dian Solar Inc. modules, provided the mounting 

system does not violate any other requirement 

of this manual.

• 

Any mounting system limitation on inclination 

or accessory required to maintain a specific 

System Fire Class Rating should be clearly spe-

cified in the installation instructions and UL2703 

certification of the mounting system supplier.

ENVIRONMENTAL CONDITIONS

• 

The module is intended for use in general open-

air climates, as defined in IEC 60721-2-1: Clas-

sification of environmental conditions Part 2-1: 

Environmental conditions appearing in nature 

- temperature and humidity.

• 

Please consult the EDF ENR PWT technical sup-

port department for more information on the 

use of modules in special climates, such as an 

altitude greater than 2000 m, heavy snow, se-

vere hail storm, hurricane etc.

• 

Do not install modules near open flames or 

flammable materials.

• 

Do not immerse modules in water or constantly 

expose modules to water (either fresh or salt) 

(i.e. from fountains, sea spray).

• 

Exposing modules to salt (i.e. marine environ-

ments) or sulfur (i.e. sulfur sources, volcanoes) 

incurs the risk of module corrosion.

• 

Do not expose modules and their connectors 

to any unauthorized chemical substances (e.g. 

oil, lubricant, pesticide, etc.), as modules may 

incur damages.

• 

Failure to comply with these instructions will 
void EDF ENR PWT warranty.

INSTALLATION REQUIREMENTS

• 

Ensure that the module meets the general tech-

nical system requirements.

• 

Ensure that other systems components do not 

damage modules mechanically or electrically.

• 

Modules can be wired in series to increase 

voltage or in parallel to increase current. To 

connect modules in series, connect the positive 

terminal of one module to the negative termi-

nal of the next module. To connect in parallel, 

connect the positive terminal of one module to 

the positive terminal of the next module.

• 

Only connect the quantity of modules that cor-

responds to the voltage specifications of the in-

verters used in the system. In addition modules 

must NOT be connected together to create a 

voltage higher than the maximum permitted 

system voltage stated on the module name-

plate, even under the worst local temperature 

conditions (see Table 1 for the correction coeffi-

cients that apply to open-circuit voltage).

• 

A maximum of two strings can be connected 

in parallel without using an over-current pro-

tection device (fuses, etc.) incorporated in se-

ries within each string. Three or more strings 

can be connected in parallel if an appropriate 

and certified over-current protection device is 

installed in series with each string. And it shall 

be ensured in the PV system design that the 

reverse current of any particular string is lower 

than the module maximum fuse rating under 

any circumstances.

• 

Only modules with similar electrical parame-

ters should be connected in the same string to 

avoid or minimize mismatch effects in arrays.

• 

To minimize risk in the event of an indirect 

lightning strike, avoid forming loops with the 

wiring when designing the

• 

system.

• 

The recommended maximum series fuse rating 

is stated in table 1 in the Annex A.

• 

Modules should be safely fixed to bear all ex-

pected loads, including wind and snow loads.

• 

After the installation of double glass modules, 

a 30 mm deflection for framed module is al-

lowed.

• 

For framed modules, a minimum clearance of 

6.5 mm (0.25 in) between modules is required 

to allow thermal expansion of the frames and 

modules.

OPTIMUM ORIENTATION AND TILT

• 

To maximize the annual yield, please calculate 

the optimum orientation and tilt for PV modules 

in that specific installation site. The highest 

yields are achieved when sunlight shines per-

pendicularly onto the PV modules.

AVOID SHADING

• 

Even minor partial shading (e.g. from dirt depo-

sits) reduces the yield. A module can be consi-

dered to be unshaded if its entire surface is free 

from shading all year round. Sunlight should be 

able to reach at least the front side of the mo-

dule even on the shortest day of the year.

• 

For optimizing the power generation of the rear 

side of bifacial modules, obstacles between 

modules and the mounting ground should be 

avoided as much as possible.

• 

Constant shading conditions can affect module 

service lifetime, due to accelerated ageing of 

the encapsulation material and thermal stress 

on the bypass diodes.