AC IOM DUCTED 12/03/2014 rev 8 1
574-206-9713
Rooftop
Air
Conditioner
for
Recreational
Vehicles
Ducted Models
AC-1361 & AC-1511
•Installation •Operation
•
M
a
i
n
t
e
n
a
n
ce Effective 12/03/2014
This air conditioner design has been certified by the Canadian
Standards Association for installation in recreation vehicles.
SERVICE CALLS & QUESTIONS
Location and phone numbers of qualified Service Centers can
be found at our website
http:/www.atwoodmobile.com
or call
866-869-3116 to locate a Service Center.
WARNING: It is important that this installation
manual is read and understood before
installation. The unit must be installed by a
qualified service technician. Failure to properly
install the unit or attempting to modify it in any
way can be extremely hazardous and may
result in property damage and personal injury
and will void the warranty.
BEFORE INSTALLATION
Ensure
that the i
n
s
t
a
ll
a
t
i
on
i
n
s
t
r
u
c
t
i
on
s
have
been
properly read and
und
e
r
s
t
ood
.
I
n
s
t
a
ll
a
t
i
on
m
u
s
t
conform
to
Local wiring codes
and
r
e
g
u
l
a
t
i
on
s
or, in the
absence
of
local codes,
the
S
t
a
nd
a
r
d
on
R
e
c
r
e
a
t
i
on
a
l
Vehicles, NFPA 1192.
and
N
a
t
i
on
a
l
E
l
e
c
t
r
i
ca
l
Code NFPA
70.
DO NOT
attempt
to
modify
or
add
c
o
m
pon
e
n
t
s
to the
i
n
s
t
a
ll
a
t
i
on
procedure.
This
e
qu
i
p
m
e
n
t
m
u
s
t
only be serviced by a
li
c
e
n
s
e
d
r
e
f
r
i
g
e
r
a
t
i
on
mechanic to maintain warranty
coverage.
If
your
i
n
s
t
a
ll
a
t
i
on
varies
from the
m
e
t
hod
outlined
please c
on
t
ac
t
A
t
w
ood
Mobile
P
r
odu
c
t
s
,
LLC
for
s
p
e
c
i
a
l
t
y
advice.
Atwood will not be held responsible for problems
relating to incorrect or improper installation
methods.
GENERAL
INFORMATION
I. PURPOSE
This Atwood AirCommand air conditioning unit is
designed for installation on the roof of a recreational
vehicle to provide cooling with AC1361 models and
cooling/heating with AC1511 models.
-The roof must be capable of supporting the weight of the
unit which is 86lbs (39Kg).
-The absolute minimum thickness of the roof must not
be less than 1 inch (25mm).
-
Roof thicknesses between 5.0–6.5 inches (125 -165mm)
require extra-long hold-down bolts Atwood PN 15086.
-Trimming of the ductwork and/or bolts may be
necessary depending on the roof thickness.
It is important that the unit is installed properly
and according to the recommended guidelines.
II. ENSURING EFFECTIVE OPERATION
T
h
e e
ff
e
c
t
i
ve
n
e
ss
of the
air
c
ond
i
t
i
on
e
r
is
d
e
p
e
nd
e
n
t
on
s
eve
r
a
l
f
ac
t
o
r
s
e.g. size and
h
e
a
t
load
of the
vehicle. When
an
A
t
w
ood
unit
is
i
n
s
t
a
ll
e
d
A
t
w
ood
assumes
that the
vehicle
i
s
well
i
n
s
u
l
a
t
e
d
with
1
inch (25mm) foam minimum
in all
walls and
roof, that the
w
i
ndo
w
s
are
of
m
od
e
r
a
t
e
s
i
z
e
(preferably double glazed) and
the roof
ve
n
t
s
are
airtight
when closed.
O
t
h
e
r
m
e
t
hod
s
of
reducing
h
e
a
t
load
include:
-Closing all doors,
h
a
t
c
h
e
s
,
w
i
ndo
w
s
and
b
li
nd
s
-
P
o
s
i
t
i
on
the
vehicle so
if
porch is used,
it will
face
the
s
un
and protect
the
w
i
ndo
w
s
from
d
i
r
e
c
t
radiation.
-Turning
off
appliances
that
m
i
g
h
t
increase
the
h
e
a
t
load
-
E
n
s
u
r
i
n
g
the
vehicle is parked
in
a shaded
po
s
i
t
i
on
.
In
periods
of
e
x
t
r
e
m
e
high
t
e
m
p
e
r
a
t
u
r
e
it
is
recommended
to
s
t
a
r
t
the air
c
ond
i
t
i
on
e
r
earlier
in the
morning
to greatly
improve
i
t
s
a
b
ili
t
y
to
cope
with the
e
x
p
e
c
t
e
d
high
h
e
a
t
load.
III. CONDENSATION
In areas
of
high
hu
m
i
d
i
t
y,
the
humid air
within the
RV
will
cause
“
s
w
e
a
t
i
n
g
”
or
c
ond
e
n
s
a
t
i
on
in
p
a
r
t
s
of the unit
as
the
humid warm air
c
on
t
ac
t
s
the
colder air discharge
s
y
s
t
e
m
.
If
t
h
i
s
occurs please ensure
the following:
-Closing all doors,
h
a
t
c
h
e
s
,
w
i
ndo
w
s
and blinds
to limit the
ingress
of
warm humid
air
-
Avoid running
the
inside fan on LOW
or
AUTO
in
s
u
c
h
c
ond
i
t
i
on
s
.
Running
the
fan on HI fan speed
will
r
e
s
u
l
t
in
higher airflow and reduce
the
t
e
nd
e
n
c
y
to have
c
ond
e
n
s
a
t
i
on
form.
LITERATURE NUMBER MPD 15078
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