Manual

g. 4
g. 5
15”
7.5”
g. 6 g. 7
g. 8 g. 9 g. 10 g. 11
Step 3 - Installing the diffuser housing
Before inserting the diffuser housing through the cut hole on ceiling, the 4 hold-down tabs should be turned inward in order
to clear the hole. Then bring them out before using a power drill or screw driver to tighten the tabs (g. 10) Insert the diffuser
housing as shown in (g. 8) and press it ush with the ceiling. (g. 9) Use a power drill with a phillips head bit or a screwdriver
to tighten the 4 hold down tabs (g. 10) making sure that they press rmly to the sheetrock (g. 11)
Step 4 - Cutting the roof opening
From inside the attic, locate the desired position for the ashing and dome opening. Generally, directly above the ceiling
opening is optimal but this position can vary depending on your particular attic conditions. Start by measuring the distance
between the 2 rafters and mark the center location. (g. 12) You should have a minimum distance between them to allow for
a 15” hole to be cut. Drive the 2” deck screw through so that it shows on the outside roof surface. (g. 13 and 14) From on
the roof, measure 7.5” out and mark from both sides of the exposed screw, (g. 15) repeat this at 90 and 45 degree angles to
achieve a circular pattern. Then draw in the pattern with chalk. (g. 16) Using a 1/2” drill bit, drill a pilot hole on the edge of the
circle to t the saw blade for cutting. (g. 17) Start cutting the circle with a reciprocating saw, as you reach the end of the cut
secure the material by holding onto the exposed screw so it won’t fall into the attic space (g. 18) Remove the disk of
material and discard (g. 19)
g. 12
g. 13
g. 14
g. 15
g. 16
g. 17
g. 18
g. 19
Find Center
7.5”
7.5”
Step 2 - Cutting out the ceiling hole
Using a string make a loop around the protruding wire or nail and measure
out 7.5” from the center. (g. 4) Hold a pencil or pen to the string at the
7.5” mark and draw a circle measuring 15” (g. 5)
Begin cutting the circle with a drywall saw (g. 6) as you get to the end of
the cut hold on to the wire or nail to brace the material for removal. (g. 5)
ATTENTION: Prior to installing the
diffuser housing, remove the diffuser
assembly by pulling up on the 2 mylar
tabs and set it aside.