Bose FreeSpace 6 Instrukcje Operacyjne Pobierz pdf (Strona 14)

1.4 Ceiling types

Check the ceiling construction before beginning installation. Ceiling type, thickness, and strength determine the

installation and connection methods for the loudspeakers. Ceiling type also dictates whether to use support rails. If in

doubt about these choices, consult a building trade professional, architect, or licensed professional engineer.

Ceiling Type Description

Rigid ceiling tiles If the tiles are particle board, plywood, gypsum board, or plaster, follow the instructions for

either tile ceilings or structural ceilings. They do not require support rails. However, support

rails may be needed if moisture or other environmental conditions could weaken the ceiling.

However, if the support rails are not used, the tilesmust be strong enough to support the

loudspeaker by themselves. See “Support rails” below for more information.

Soft ceiling tiles If the tiles are a “soft” material (like mineral wool or glass fiber), follow the instructions for

ceiling tiles. Use the support rails with this type of ceiling tile. These tiles can bow or absorb

moisture and may not continue to support the loudspeaker’s weight.

Structural ceilings Follow the instructions for structural ceilings. Remove the support rails from the ceiling pans

before using the “structural ceiling” installation method.

Support rails

Not all ceilings require support rails. Only the installer can determine if a ceiling is strong enough to support the

loudspeakers by itself. If in doubt, consult a building trade professional, architect, or licensed professional engineer.

The support rails are 23

inches (60 cm) long, and will support a loudspeaker on a 2 foot x 4 foot (0.6 m x 1.2 m) or

smaller tile. If the ceiling tiles are another size, the support rails will usually provide adequate support if they meet the

edge of the tile on at least two sides.

Follow these guidelines:

• For 60 cm tiles, place the ceiling pans and support rails at a 10° – 15° angle

10° – 15 °

• For 62 cm tiles, extend the rails in opposite directions until each rail reaches the ceiling grid on one side of the tile

1.0 System Placement

English

AM180090_02_V.pdf • May 7, 2002

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Bose FreeSpace 6 Instrukcje Operacyjne Strona 14