Advertisement
Solar Energy Systems
Mounting instructions – MSP-FR-EW flat roof PV mounting system
Figs. 12A, 12B and 13: Position ballast
Note: Ballast is not needed for every project. This step is only necessary if the software report indicates that
ballast is needed. If ballast is required, it is very important to ensure the correct amount of ballast is positi-
oned in the correct locations. The ballast stones are not supplied by Schweizer.
1. Where needed, position either one or two ballast stones with the center of the appropriate high supports
(MSP-FR-EW-SH, ).
2. If more than 2 ballast stones are needed at any locations, install a second shorter connection channel
(MSP-FR-EW-C, ) on the opposite side of the supports, running from a low (MSP-FR-EW-SL, ) to a
high support (MSP-FR-EW-SH, ). The additional ballast stones can be positioned by laying 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.
Figs 14, 15, 16, 17 and 18: Provision of cable management
Note: Cable holders are supplied by Schweizer, other cable management components are optional.
1. For carrying the panel cables running in the north-south direction. The cable holder (MSP-FR-CH8, ) is
inserted into the high support (MSP-FR-EW-SH, ) and clicked into place by turning.
2. For possible carrying cables in the east-west direction. On the outside of the panel block, a cable tray can
be attached to the base profiles (MSP-FR-EW-BP, at least 300 mm, )(spanning across two) and screwed
into place. Two screws (MSP-FR-S, ) are required per cable tray, each on a separate base profile.
3. Free running cable trays can be positioned by using additional base profiles (MSP-FR-EW-BP, ) (with
correctly attached protection sheet) positioned at each end of the cable tray. Base profiles can be shared
by two cable trays in series.
4. Free running cable trays can contain 90 degree turns. A longer base profile (MSP-FR-EW-BP, ) with cor-
rectly attached protection sheet (MSP-FR-EW-PSF, ) is needed.
Figs. 19A and 19B: Installation of grounding screws
Note: Grounding screws (MSP-FR-GS, ) are needed to create the electrical potential equalization of the
PV panels to the MSP-FR-EW mounting system. 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 (MSP-FR-GS, ) must be ins-
talled onto that lip of the low support (MSP-FR-EW-SL, ).
2. Where no PV panel will be in contact with a lip of a low support (MSP-FR-EW-SL, ), a grounding screw
(MSP-FR-GS, ) is not required.
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, ) and lower other edge of panel
onto high support (MSP-FR-EW-SH, ).
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 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 20 mm
gap to the previous panel in the north-south direction. Once all panels are in position, and prior to clam-
ping, it should be ensured that the overlap of each panel to the supports is 30-40 mm.
© Ernst Schweizer AG
Ernst Schweizer AG, Metallbau
CH-8908 Hedingen
Telefon +41 44 763 61 11
Telefax +41 44 763 61 19
www.schweizer-metallbau.ch
Mounting instructions - MSP-FR-EW
technical changes reserved
27.03.2015/BRX
page 7/12
Advertisement
