Community D SERIES Manual de instalação e operação - Página 10

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Installation and Wiring

Installation of conduit to the back can

Required tools:

• One hammer and knockout punch tool

• One step-bit for adjusting knockout diameter (optional)

• Safety glasses, gloves and other personal safety gear are recommended

as this process involves striking metal parts and chipping away debris

around the knockouts.

1. All D SERIES loudspeaker back cans have dual-diameter knockout strain

relief fittings on each side. These fittings each measure:

• 21/32" (17mm) to accommodate 3/4" (19 mm) fittings

• 15/16" (24 mm) to accommodate 1" fittings

• Also, the top cover has a 3/4" (19 mm) knockout

2. The knockout strain relief ports are opened with a hammer and punch using

the same techniques for removing knockouts in standard electrical boxes.

A step-bit can be used to modify the diameter of the hole to accommodate

larger conduit sizes.

3. Insert appropriate fittings and tighten sufficiently for wire path concealment

and strain relief, in accordance with applicable codes.

4. You can use flexible or rigid conduit (if permitted by local electrical codes).

Conduit fitted to one side of the can

(an additional knockout strain relief on

the opposite side of the can allows the

connection wiring to be carried through to

subsequent cans)

Figure 5. Conduit for protected wiring to can

When you use conduit to bring wires to the side port(s) of the back can, you

can loosen the screws in the green plug to remove the factory-installed wires

from the internal terminal block jumpers (Figure 5), then insert wires from the

conduit(s) and tighten the screws. The rest of the wiring details are the same

as shown in Figure 4.

Figure 6. Redeploying the plug for wires entering from conduit

(Loosen clamping screws to remove/replace wires)

Page 10

(continued)

Conduit fitted to the top cover plate of the

can, which has a knockout strain relief for

this purpose

Installation and Operation Manual

D SERIES Ceiling Loudspeakers