MartinLogan Helos 20 [4/12] Nstallation

4 Installation

NOTE: These instructions must be carefully followed to

assure that your Helos 20 is safely installed. Study them

thoroughly before installing your Helos 20.

NOTE: The following instructions assume the mounting

surface is of standard wood frame and standard sheet rock

construction. If you wish to mount the Helos 20 to another

type of material, you should consult a bonded contractor.

Warning! Before installing check

local building codes to verify com-

pliance with local regulations.

Warning! Before installing check

for obstructions behind the drywall

(electrical, plumbing and other fix-

tures). To do this make a small hole,

cutting at a 45° angle (this will make

the hole easier to patch if obstruc-

tions are found). Only cut the

mounting hole after you have

verified there are no obstruc-

tions behind the ceiling.

Required tools (not included):

Stud finder

Sharp pencil or pen

Dry wall knife/saw

Wire strippers

Electric drill (with clutch)

2-inch long #2 Phillips Driver bit

Tape measure

Push Pin

Depth required above ceiling surface:

5" (12.7cm)

Required ceiling opening (includes tolerance):

8.35" (21.2cm)

InstallatIon

Figure 9. Dimensions of the Helos 20