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Idiomas disponibles
Idiomas disponibles
or rafters
cross beams
¾" Min.
(19.05 mm)
Air Distribution Duct Sizing and Design
The installer of this system must design the air distribution
system for their particular application.
NOTE: Make sure ductwork will NOT bend or collapse during
and after installation, and that it is correctly insulated and
sealed. Otherwise, damage to roof structure and ceiling could
occur.
The following requirements must be met for properly operate
the unit:
Roof Cavity
3.5"-6" (89mm-152mm)
Depth
Duct Cross
21 Sq. In. Min.
Sectional Area
Depth
Width
Duct Size
Total Duct Length
Duct Length (short
run)
Number Required
Supply Register
Free Air Area
Return Register
Register
Free Air Area
Requirements
per A/C Unit
Distance From
Duct End
Distance From
Elbow
Total System
Blower at High
Static Air
Speed, Filter &
Pressure
Grille In Place
●
Properly insulate and seal all discharge air ducts to prevent
condensation from forming on their surfaces or adjacent
surfaces during operation of the unit. This insulation must
be R-7 minimum.
CCD-0007273 Rev: 11-04-22
rafters
Leave access for
power supply wiring
1½ " Min. - 2½ " Max.
(38mm Min. - 63.5mm
Max.)
7" Min. - 10" Max.
(178mm Min. - 254mm
Max.)
15Ft. Min. - 40Ft. Max.
(4.5m - 13m)
1/3 Total Duct Length
4 Min. - 8 Max.
14 Sq. In. (90 sq. cm)
40 Sq. In. (258 sq. cm)
5" Min. - 8" Max.
(127mm Min. - 203mm
Max.)
15" (381mm)
0.55 - 1.10 In. W.C.
- 5 -
Duct
TOP VIEW (BACK OF RV)
Roof
Duct
SIDE VIEW (TOWARD BACK OF RV)
●
Return air openings must have 80 square inches (516
square centimeters) minimum free area including the filter.
●
Return air to the unit must be filtered to prevent dirt
accumulation on the unit cooling surface.
Air Distribution System Installation
It is the responsibility of the installer to review each RV floor
plan to determine the following items in conjunction with "Air
Distribution Duct Sizing and Design" section
NOTE: Alternate configurations and methods may be used
which will allow the unit to operate properly, however, these
alternate configurations and methods MUST be approved by
Furrion in writing.
●
Duct size
●
Duct layout
●
Register size
●
Register location
●
Thermostat location
●
Indoor temperature sensor location (if applicable)
Registers 4 Min - 8 Max.
(Per Unit) 14 Sq. In.
Free Area Per Register
Air Conditioner
Preparing Wire Connections
Each rooftop air conditioner opening must be prepared
with proper wiring to connect the ceiling controller of the air
conditioner to the 115VAC and 12VDC supply voltage, wall
thermostat and furnace switch.
NOTE: The wire connections need to be positioned in the
forward facing 1/4 section of the opening.
Frame
Duct
Roof
Opening
Frame
Frame
Roof Opening
Duct
Ceiling
Front
Return Air
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