PHOTOWATT PW60HT-C-XF, Installation Manual

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D84-P06-01 GB R2 28/07/2020 www.photowatt.com
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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) should be used to attach copper groun-
ding wire to a pre-drilled grounding hole on the
frame (see image above). The grounding holes
are located at the upper and lower edges of
the long side frame, close to the module short
sides.
•
Mounting rail designs should be such to allow
easy access to the grounding holes located on
the long side of the frame, in order to enable the
equipment grounding function when required.
•
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 applicable regulations pertaining
to work safety, accident prevention and
securing the construction site must be
observed. Workers and third party personnel shall
wear or install fall arrest equipment. Any third party
need to be protected against injuries and damages.
•
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 au-
thorities.
•
EDF ENR PWT does not provide mounting hard-
ware.
•
The system designer and installer are res-
ponsible for load calculations and for proper
design of support structure.
•
The loads described in this manual correspond
to test loads. For installations complying with
1. To fix the wire between the
flat washer and cup washer,
place the cup washer
(concave side up) between
the frame and the wire.
2. Then tighten the bolt
using the toothed nut.
IEC 61215-2:2016 and UL 1703, a safety factor of
1.5 should be applied for calculating the equi-
valent maximum authorized design loads. Pro-
ject design loads depend on construction, ap-
plicable standards, location and local climate.
Determination of the design loads is the res-
ponsibility of the racking suppliers and/or pro-
fessional engineers. For detailed information,
please follow local structural code or contact
your professional structural engineer.
•
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.
WHEN CLAMPS ARE USED AS FIXING MATERIAL:
•
Install and tighten the module clamps to the
mounting rails using the torque stated by the
mounting hardware manufacturer. System desi-
gner and installer are responsible for load calcu-
lations and for proper design of support struc-
ture. It is recommended to use a torque wrench
for installation. Tightening torques must res-
pectively be within 17-23 Nm (12.5-17.0 ft-lb) for
M8x1.25-Grade8.8 (5/16”-18 Grade B7) galvanized
or A2-70 stainless steel coarse thread bolts, de-
pending on bolt class. The yield strength of bolt
and nut should not be less than 450 MPa.
•
Clamp material should be anodized aluminum
alloy or steel of appropriate grade.
•
Clamp positions are of crucial importance for
the reliability of the installation, the clamp cen-
terline must only be positioned within the au-
thorized position ranges indicated below, de-
pending on the configuration and load.
GROUNDING METHOD:
BOLT + TOOTHED NUT + CUP WASHER