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6
Roof Preparation
Opening Requirements - Before
preparing the ceiling opening, decide
on the type of system options. Read
all of the following instructions before
beginning the installation.
WARNING
Fire/Electric Shock Hazard
● Make sure there are no obstacles
inside the RV roof, floor and walls,
such as wires and pipes.
● Shut off the gas supply and
disconnect the 115VAC power from
the RV before drilling or cutting
into the RV. Failure to obey these
warnings could result in death or
serious injury.
Roof Thickness
The installation of air conditioner suits
for roof thickness from 3.5” (90mm) to
6” (152mm). For other thickness, please
contact Furrion or Furrion authorized
service agent.
Installing in an Existing
Opening
1. Unscrew and remove the roof vent.
2. Remove all caulking compound
around the opening.
3. If the opening exceeds 14¼” x 14¼”
(+½”), it will be necessary to resize the
opening to 14¼” x 14¼” (+½”). If the
opening is less than 14¼” x 14¼” (+½”),
it must be enlarged.
362mm
14¼”
362mm
14¼”
362mm
14¼”
362mm
14¼”
Making a New Opening
If a roof vent opening will not be used,
a 14¼” x 14¼” (+½”) (362mm x 362mm)
opening must be cut through the roof
and ceiling of the RV. This opening must
be located between the roof reinforcing
members.
The 14¼” x 14¼” (+½”) opening is
part of the return air system of the air
conditioner and must be finished in
accordance with NFPA Standard 501C
Section 2.7.2.
1. Mark a 14¼” x 14¼” (+½”) square on
the roof and carefully cut an opening.
362mm
14¼”
362mm
14¼”
362mm
14¼”
362mm
14¼”
2. Using the roof opening as a guide, cut
a matching hole in the ceiling.
NOTE: Maintain structural integrity.
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