After the Location Has Been Selected:
1. Check for obstructions in the area where the air
conditioner will be installed.
Center Line
of Rooftop
Front
Roof Opening
18”
3413⁄16”
(884mm)
139⁄16”
(345mm)
279⁄16”
(700mm)
Keep this air flow area free of obstructions
2. Check the inside of the RV for return air kit obstructions.
(i.e. door openings, room dividers, curtains, ceiling fixtures,
etc.) Allow 6” (152mm) space from the opening to account
for any potential return air kit obstructions.
Roof
Opening
17.5”
(438mm)
17.5”
(438mm)
1911⁄16”
(500mm)
1911⁄16”
(500mm)
6"
6"
Roof
Opening
17.5”
(438mm)
17.5”
(438mm)
1911⁄16”
(500mm)
1911⁄16”
(500mm)
6"
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 141/4” x 141/4” (+1/2”), it will be
necessary to resize the opening to 141/4” x 141/4” (+1/2”). If the
opening is less than 141/4” x 141/4” (+1/2”), it must be enlarged.
362mm
14¼”
362
mm
14¼
”
362mm
14¼”
362
mm
14¼
”
Making a New Opening
If a roof vent opening will not be used, a 141/4” x 141/4” (+1/2”)
(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 141/4” x 141/4” (+1/2”) 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 141/4” x 141/4” (+1/2”) square on the roof and carefully
cut an opening.
362mm
14¼”
362
mm
14¼
”
362mm
14¼”
362
mm
14¼
”
2. Using the roof opening as a guide, cut a matching hole in
the ceiling.
NOTE:
Maintain structural integrity. Otherwise damage
to product and/or RV could occur. Always observe the
following guidelines while structuring the opening.
Do not cut roof
structure or
rafters
Good: rafters
supported by
cross beams
Good: location
between roof
rafters
3⁄4" Min.
(19.05 mm)
Leave access for
power supply wiring
3. The opening created must be framed to provide adequate
support and prevent air from being drawn from the roof cavity.
4. Lumber 3/4” or more in thickness must be used. Remember
to provide an entrance hole for power supplies, wall
thermostat and furnace wiring for connections. Leave 15”
(381mm) minimum at the front of the opening.
English
CCD-0005730 Rev: 04-25-22
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