Hilti MSP-FR-EW Instructions De Montage page 9

1. Where needed, position either one or two ballast stones with the center of the
appropriate high supports (MSP-FR-EW-SH, ① ).
2. If more than 2 ballast stones are needed at any locations, install a second
shorter connection channel (MSP-FR-EW-C, ④) on the opposite side of the
supports, running from a low (MSP-FR-EW-SL, ②) to a high support (MSP-
FR-EW-SH, ①). The additional ballast stones can be positioned by laying
Figs 14, 15, 16, 17 and 18: Provision of cable management
Note:
The cable management components supplied by Hilti are optional.
1. For carrying the panel cables running in the north-south direction. The cable
clip (MSP-AL-CH 8, ⑫) is inserted into the high support (MSP-FR-EW-SH, ①
) and clicked into place by turning.
2. For carrying cables in the east-west direction. On the outside of the panel
block, the cable tray (MSP-FR-CT 80, ⑥) is placed on top of the base profiles
(MSP-FR-EW-BP, ③) (spanning across two) and screwed into place. Two
screws (MSP-FR-S, ⑩) are required per cable tray, each on a separate base
profile. If the base profile does not have enough area extending beyond the
block edge to support the cable trays, the software design will indicate the
use of additional base profiles and the use of free running cable trays along
Figs. 19a and 19b: Installation of grounding screws
Note:
Grounding screws (MSP-FR-GS, ⑪) are needed to create the
electrical potential equalization of the PV panels to the MSP-
FR-EW mounting structure. It is very important that at least one
grounding screw is in contact with every PV panel installed.
1. Under the location of every PV panel to be installed, a grounding screw
Figs. 20, 21 and 22: Positioning PV panels
Note:
Panels can only be installed in a landscape orientation.
1. Position edge of panel on lips of the low supports (MSP-FR-EW-SL, ②) and
lower other edge of panel onto high support (MSP-FR-EW-SH, ① ).
2. Complete process for all panels to be installed.
3. The first panel should be positioned so as to overlap the supports 30-40 mm
Figs. 23a, 23b, 24a, and 24b: Fixation of PV panels
1. Click into the supports the end clamps (MSP-PR-EC, ⑨) (at the panel edges
on the outer edge of the PV blocks) and middle clamps (MSP-PR-MC, ⑧)
(locations between two adjoining panels).
2. Fix the panels into place by tightening the clamps with a torque of 10 Nm.
The clamps positioned on high supports (MSP-FR-EW-SH, ① ) should be
Fig 25: Cover cable trays
Note: This step is only required if the optional cable management compon-
ents supplied by Hilti have been installed.
Fig. 26: Grounding PV installation
Note: The equipment required for this step is not supplied by Hilti. The
method indicated is only a suggestion, there are numerous ways
to achieve this. The customer must decide how best to achieve a
grounding of the PV structure.
them across the two parallel connection channels in a perpendicular direction.
It is important to ensure that the ballast stones are not positioned in a manner
that they are in contact with the roof membrane.
3. Ensure the ballast stones are positioned so that the panels do not come into
contact with the stones once installed.
the edge of the panel block (see point 4. immediately below).
3. The cable trays (MSP-FR-CT 80, ⑥) should not overlap one another.
4. Free running cable trays can be positioned by using additional base profiles
(MSP-FR-EW-BP, ③) (with correctly attached protection sheet) positioned at
each end of the cable tray (MSP-FR-CT 80, ⑥). Base profiles can be shared
by two cable trays in series, but avoiding the overlapping of the cable trays.
Both ends of the cable trays must be screwed into place (on the two separate
base profiles).
5. Free running cable trays can contain 90 degree turns. A longer base profile
(MSP-FR-EW-BP, ③) with correctly attached protection sheet (MSP-FR-EW-
PSF, ⑤) is needed.
(MSP-FR-GS, ⑪) must be installed onto that lip of the low support (MSP-FR-
EW-SL, ②).
2. Where no PV panel will be in contact with a lip of a low support (MSP-FR-
EW-SL, ②), a grounding screw (MSP-FR-GS, ⑪) is not required.
in a north-south direction. If necessary, slide the panel to achieve this overlap.
4. To enable the clamps to be positioned correctly, each subsequent panel
should be placed with a 20mm gap to the previous panel in the north-south
direction. Once all panels are in position, and prior to clamping, it should be
ensured that the overlap of each panel to the supports is 30-40mm.
tightened before tightening the corresponding clamps positioned on the low
supports (MSP-FR-EW-SL, ②).
3. After tightening the clamps flanges should overlap the panel frames by a
minimum of 7mm.
1. Click the cable tray cover (MSP-FR-CTC 80, ⑦) over the installed cable trays
(MSP-FR-CT 80, ⑥) .supports (MSP-FR-EW-SL, ②).
1. Connect the earthing equipment by screwing into the side hole of a low
support (MSP-FR-EW-SL, ②). Every PV block will need to be earthed
individually.
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