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INSTALLATION INSTRUCTIONS - ALL MODELS
WARNING!
TO REDUCE THE RISK OF FIRE,
ELECTRIC SHOCK, OR INJURY TO PERSONS,
OBSERVE THE FOLLOWING:
a) Installation work and electrical wiring must be
done by qualified persons(s) in accordance with all
applicable codes and standards, including fire-rated
construction.
STEP 1
MAXXAIR MINI and MAXXFAN MINI / MINI
PLUS require a 14" x 14" roof opening. If you are
replacing another type already installed, remove
the old existing roof vent.
sealant for a minimum of 2" entirely around the
roof opening.
STEP 2
Measure the thickness of the roof opening and,
if necessary, mark and cut the height of the MINI
sleeve per the following table. NOTE: for curved
roofs measure the thickest part of the roof.
CUT FROM
VEHICLE
MAXXAIR
ROOF
MINI MAXX
THICKNESS
4.0 – 4.5 inches
(use full length
3.5 – 4.0 inches
3.0 – 3.5 inches
2.5 – 3.0 inches
2.0 – 2.5 inches
1.5 – 2.0 inches
N/A, Sleeve not
1.0 – 1.5 inches
STEP 3
Prior to installing the MINI hood portion over the
roof opening, apply a continuous strip of BUTYL
tape or equivalent to the underside of the flange
in the area under the screw location dimples.
Remove all old roof
LENGTH OF
SCREWS ( 4 )
SLEEVE
NONE
4.5 inches
sleeve)
0.5 inches
4.5 inches
1.0 inches
3.5 inches
1.5 inches
3.5 inches
2.0 inches
2.5 inches
2.5 inches
2.5 inches
1.5 inches
used
MARK & CUT OFF INDICATED
AMOUNT OF SLEEVE (SEE TABLE)
CAUTION!
When installing only use a caulking/
sealant compatible with the flange (plastic product)
and the roof surface.
containing solvents such as or similar to Xylene,
Toluene, Methyl Ethyl Ketone (MEK), Acetate or
Acetone as they can damage the flange.
Polysulfide (Thiokol) type sealants must be avoided.
If in doubt, please contact the manufacturer of your
RV for further information.
STEP 4
Insert the hood into the roof opening with the
louvered section facing the rear of the vehicle
and centering the hood in the opening. Using
the twenty-eight (28) screws provided, attach the
flange to the roof at each dimple location along
the flange. Screw into the dimple to pierce the
flange, making sure not to overtighten the screws
to avoid cracking the flange.
STEP 5
After the hood has been installed, remove the
excess BUTYL caulk that may have squeezed
out. Using a sealer such as Dicor self-leveling
lap sealant or similar caulking, apply a daub over
every exposed screw head. In addition, apply a
bead (approximately 3/16" dia.) along the outside
edge of the flange all the way around the vent.
THIS COMPLETES THE ROOF TOP
PORTION OF THE INSTALLATION
FRONT OF RV
APPLY SEALANT AROUND
PERIMETER OF FLANGE
NOTE: FOR INSTALLATION OF MAXXAIR
MINI 3700 & 3750 PLEASE SKIP TO STEP 8
CAUTION! Disconnect main vehicle power before
connecting 12 volt DC power to the MAXXFAN
MINI or MINI PLUS!
2
DO NOT use materials
Also,
APPLY BUTYL TAPE
INSTALL SCREWS (28) &
SEAL SCREW HEADS
REAR OF RV
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