Viking DEV900 Manuel D'instructions page 3

INSTALL THE VENTILATOR
ROOF INSTALLATIONS
. Remove roofing nails from the upper 2/3 of the
shingles around the cutout area and carefully lift
the shingles to allow the back flashing sheet on
the ventilator housing to fit under them.
2. Center the ventilator ring in the " diameter hole,
making sure that the -/4" diameter electrical wir-
ing hole aligns with the hole in the wiring box.
3. Attach the ventilator to the roof with the six screws
provided. All six holes in the back panel must be
filled, or any moisture that may get inside the ven-
tilator housing could leak into the house.
4. Using a good grade of roofing cement, seal all of
the shingles around the housing and flashing sheet
as well as the mounting screw heads.
5. Bring electrical wiring through the hole in the wiring
box and secure it according to local codes.
Figure 4
BLACK
TO
BLACK
120 VAC
LINE IN
6. make the electrical connections with the proper
connector for the type of wiring being used. Con-
nect white to white, black to black, and the green
or bare wire to green. See Figure 4.
7. Replace wiring box cover and screws. Do not pinch
wiring under the cover.
8. Check for free movement of the damper before
installing housing cover and screws.
WHITE
GREEN
TO
TO
WHITE
GREEN
INSTALL THE VENTILATOR
WALL INSTALLATIONS
. Place a large bead of caulk on the back side of
the housing along the outer edge.
2. Center the ventilator ring in the " diameter hole,
making sure that the -/4" diameter electrical
wiring hole aligns with the hole in the wiring box.
3. Attach ventilator to the wall with the six screws
provided. All six holes in the back panel must
be filled, or any moisture that may get inside the
ventilator housing could leak into the house.
4. Using a good grade of caulk, seal all around the
mounting screw heads.
5. Bring electrical wiring through the hole in the wiring
box and secure it according to local codes.
6. make the electrical connections with the proper
connector for the type of wire being used. Connect
white to white, black to black, and green or bare
wire to green. See Figure 4.
7. Replace wiring box cover and screws. Do not pinch
wiring under cover.
8. Check for free movement of the damper before
installing housing cover and screws.
9. Top and side flanges of the back plate may be
covered with trim strips. Do not block grille open-
ing at bottom with trim. It will adversely affect
performance of the ventilator.
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