Tannoy CMS 3.0 SERIES Quick Start Manual page 3

METHOD 3:
a. Attach the PI backcan to the option pre-mount
plaster ring using the fixing points provided with the
pre-mount ring. (Fig 3).
b. Secure the wings of the pre-mount ring to a secure
fixing point using suitable fixings.
2. Attach conduit to the backcan using one of
two methods:
METHOD 1: Use the clamp at the back of the
pre-install backcan. The product will accept a squeeze
connector with a thread size of up to 22 mm. To
remove the cable clamp, simply unscrew the threaded
washer (under the wiring cover) which holds the cable
clamp in place and replace it with a conduit squeeze
connector. (Fig.4)
METHOD 2: Use any of the three knock-out points at
the sides of the backcan (19 mm, 22 mm or 28 mm
diameter). (Fig 5)
Fig.3
3. If conduit not used, run approved speaker cable to
the installed can. Terminate in the top-mounted cable
clamp or with an approved cable connector in one of
the three knock-out points at the sides of the backcan.
4. Cut a hole in the proper ceiling location using the
supplied cut-out template (self-adhesive backing) and
a pad saw. Place the pre-install backcan over the hole.
5. Proceed to Section 5 following on wiring and setting
up. Return to Step 6 below.
6. Slide the speaker assembly through the hole. Turn
the screws (denoted "Screw Fix") clockwise on the
front of the speaker to extend the mounting wings.
Tighten the screws until a firm grip is achieved.
(NOTE: Screws have a PoziDriv head; use of a PoziDriv
driver is recommended). If using a power driver, Tannoy
recommends a torque setting of 1.5 Nm. (Fig.6)
Fig.1
Fig.4
Fig.2
Fig.5
Fig.6