Extron electronic FF 220T setup guide IMPOR.com, Wire Gauge Table

Loosen, but do not remove the 2 transformer cover plate screws in the 2 keyhole slots.

FF 220T • Setup Guide

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This setup guide contains installation information about the Extron FF 220T Flat Field® speaker. This speaker is designed for use in plenum rated ceiling spaces and can be dropped into a standard square (2-foot by 2-foot or 600 mm by 600 mm) or rectangular (2-foot by 4-foot or 600 mm by 1200 mm with supplied cross bars) false ceiling tile space on a T-bar grid.

WARNING: May result in serious injury. Installation and service must be performed by authorized personnel only.

NOTE: The FF 220T comes in two ceiling tile configurations depending on the tile unit of measurement:

• US version (part #42-141-03) — Drops into 2' x 2' (61 cm x 61 cm) or 2' x 4' (61 cm x 122 cm)

suspended tile ceilings

• Metric version (part #42-141-23) — Drops into 600 mm x 600 mm or 600 mm x 1200 mm suspended tile ceilings

Be sure to order the correct part number as the two configurations are not interchangeable and will not fit correctly.

Factors to Consider Before Installation

zz Installation of conduit and conduit adapters must conform to all applicable building codes and local ordinances.

zz Installation in a plenum-rated environment requires a wire gauge of 12 AWG to 18 AWG, as shown on the right. Conduit may be required.

zz If using secondary support cables, the installer provides the cables.

	Wire Gauge Table
	Number of Wires	Maximum
	per Connection Point	Wire Gauge
8Ω	1	12 AWG
Configuration	2	14 AWG
70 V/100 V	1	14 AWG
Configuration	2	16 AWG

Installation

1.Disconnect power —­ Power down all attached devices before proceeding.

2.Remove and cut ceiling tile — Remove the square ceiling tile where the FF 220T will be installed. If the ceiling has rectangular tiles, cut the tile in half, as shown below.

Cut Material

Draw Line At	Rectangular Ceiling Tile
Halfway Point

3.Install the T-rail in a rectangular tile —­ When the ceiling uses rectangular tiles, install the T-rail crosspiece into the ceiling opening up against the

cut tile, as shown on the right.

4. Transformer cover plate — Loosen, but do not remove, the two screws on the top of the transformer cover plate, as shown on

the right. Next, slide and remove theTransformer Cover Plate transformer cover plate, which is installed

with the transformer side down.

Ceiling Tile

T-rail Crosspiece (supplied)

1