User manual ELECTRO-VOICE 636 DATASHEET

[. . . ] However, a two-step installation procedure that is sometimes used for installation into sheetrock ceilings can be made easier by the use of the optional RR and RPK series of rough-in accessories before the ceiling material is installed. The rough-in accessories provide a cutout guide when many holes are to be made in a production-line style installation and to ensure the speakers are positioned correctly as the holes are cut in the sheetrock. RR Series Mounting Plates RR series plates are made of flat sheet metal with holes to attach to the joists or trusses of a building structure. [. . . ] The holes are drilled for nails or screws at 16 inches (406 mm), 20 inches (508 mm) and 24 inches (610 mm) on-center. The installer can drill other holes as needed up to a maximum of 24-3/4 inches (630 mm) apart. The sheetrock installs over the plate, and the plate provides a template for a blind cutout of the hole in the sheet rock. The ceiling material is generally cut with a routertype cutting tool, using the plate ring as a cutout guide. RPK Series Kits The RPK series rough-in kit contains a RR series plate with a standard 2 gang electrical box mounted on the top with an attached short length of flexible conduit which connects to the ceiling speaker conduit clamp on the speakers rear terminal cover. This accessory allows for rigid conduit to be run to the box on the rough-in plate before the speaker or any sheetrock is installed. After the sheetrock is installed the speaker can be wired up and mounted all from below the ceiling. Available Rough-In Accessories RR-42 RR-82 RR-810 RPK-42 RPK-82 RPK-810 301305-000 301306-000 301307-000 301308-000 301309-000 301310-000 Rough-in mounting plate for new constr uction for use with the EVID C4. 2 (Pkg. of 2) Package Contents RR Kit Includes: Qty. 4 Description Mounting Plate RPK Kit Includes: Qty. 2 2 2 2 Description Mounting Plate BX Conduit Conduit Connector 2-Gang Junction Box w/Cover (x4) (x2) Installation Procedure Mount Plates to Joists Select a suitable location for the mounting plate. Screw mounting plate to joist or rafter as shown using the appropriate mounting holes provided. Note: You may re-attach the conduit connector to any one of the access holes in the electrical box provided as shown. 12000 Portland Avenue South, Burnsville, MN 55337 Phone:952/884-4051, Fax:952/884-0043 www. electrovoice. com © Telex Communications, Inc. 1/2003 Part Number 38110-181 Rev A U. S. A. For customer orders, contact Customer Service at: 800/392-3497 Fax: 800/955-6831 Europe, Africa, and Middle East only. [. . . ] 1/2003 Part Number 38110-181 Rev A U. S. A. For customer orders, contact Customer Service at: 800/392-3497 Fax: 800/955-6831 Europe, Africa, and Middle East only. [. . . ]