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PREPARE THE INSTALLATION
LOCATION
ROOF INSTALLATIONS
1. Locate the ventilator on the rear slope of the roof.
Place it in a location to minimize duct run. The
location should be free of obstacles (T.V. leads,
electrical lines, etc.). Bear in mind, if the ventilator
top is level with the roof peak, it will not be seen
from the street. Keep this approximate location in
mind as you work from within the attic.
Figure 1
8½"
8½"
REMOVE
REMOVE
SHINGLES
SHINGLES
10
10
3
3
/
/
"
"
8
8
Pilot
Pilot
Pilot
Hole
Hole
Hole
1¼"
1¼"
dia. hole
dia. hole
OUTSIDE - ROOF VIEW
OUTSIDE - ROOF VIEW
From inside the attic space:
2.
Drill a PILOT HOLE up through the roof, 8½"
from the inside edge of a ROOF RAFTER.
From outside - on the roof:
Measure and mark the 20¾" x 20½" rectangle.
3.
Cut and remove only the shingles inside this
rectangle.
Measure and mark the 11" DIAMETER HOLE
4.
and the 1¼" DIAMETER HOLE. Cut these holes
all the way through the roof.
Figure 2
2 "
5. For flat roof installations, build a curb that will
mount the ventilator at a minimum pitch of 2/12.
See Figure 2. Discharge end of the ventilator
should be pointed away from prevailing winds.
20¾"
20¾"
11"
11"
dia.
dia.
hole
hole
20½"
20½"
9
9
1
1
/
/
"
"
8
8
7¼"
7¼"
PREPARE THE INSTALLATION
LOCATION
1. Choose a position on the outside wall. Make sure
that no wall studs, pipes or wires run through the
opening area.
Figure 3
12
12
7
7
/
/
"
"
8
8
From inside the wall:
2.
Drill a PILOT HOLE through the wall, 8½" from
the inside edge of a WALL STUD.
From outside - on the wall:
3.
Measure and mark the 25" x 29½" rectangle. Cut
and remove only the siding inside this rectangle.
4.
Measure and mark the 11" DIAMETER HOLE
and the 1¼" DIAMETER HOLE. Cut these holes
all the way through the wall.
PREPARE THE VENTILATOR
1. Unpack the ventilator assembly.
"
6 ¾
2. Remove the cover and screws.
3. Remove and discard cardboard from ventilator
wheel.
4. Remove the wiring box cover and screws.
5. Attach an appropriate U.L. approved cable con-
nector in the hole at the rear of the wiring box.
2
WALL INSTALLATIONS
24¾"
25"
10¾"
10¾"
REMOVE
REMOVE
8½"
8½"
SIDING
SIDING
Pilot
Pilot
Pilot
Hole
Hole
Hole
1¼"
1¼"
dia. hole
dia. hole
7¼"
7¼"
OUTSIDE - WALL VIEW
OUTSIDE - WALL VIEW
ALL INSTALLATIONS
11" dia.
11" dia.
hole
hole
28¼"
29½"
9
9
1
1
/
/
"
"
8
8
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