Manual
Unit Installation (Non-Ducted)
Before beginning, mark
out the
po
s
i
t
i
on
of the
unit
considering
the
following
important
r
e
qu
i
r
e
m
e
n
t
s
:
-
The air
c
ond
i
t
i
on
e
r
should be
s
i
t
u
a
t
e
d
a
s
c
e
n
t
r
a
ll
y
as possible on
the
vehicle,
to
ensure
even
air d
i
s
t
r
i
bu
t
i
on
.
-
The
front of the unit MUST
face
the
d
i
r
e
c
t
i
on
of
t
r
a
ve
l
;
failure
to follow
t
h
i
s
i
n
s
t
r
u
c
t
i
on
will
r
e
s
u
l
t
in
damage
to the
condenser
f
a
n
s
.
- If the
vehicle is over 23’
in
l
e
n
g
t
h
,
or
has
an
unusually high
h
e
a
t
load (see
G
e
n
e
r
a
l
O
p
e
r
a
t
i
n
g
I
n
f
o
r
m
a
t
i
on
s
e
c
t
i
on
regarding
e
x
p
e
c
t
a
t
i
on
s
a
bou
t
i
n
s
u
l
a
t
i
on
e
t
c
.),
Atwood
would recommend
2 or
more un
i
t
s
to cool
effectively.
-
When considering
the
i
n
s
t
a
ll
a
t
i
on
po
s
i
t
i
on
remember
to
check
for
clearance around
the
plenum inside
the vehicle.
-
Avoid an
i
n
s
t
a
ll
a
t
i
on
po
s
i
t
i
on
where
a
bulkhead, cupboard
or light fitting could
interfere
with the
discharge air
flow from the
plenum.
It is important that the unit is never
more than
5
°
from the horizontal and
the rear of the unit should never be
higher than the front.
-
C
on
t
ac
t
A
t
w
ood
if
your
i
n
s
t
a
ll
a
t
i
on
d
i
ff
e
r
s
s
i
g
n
i
f
i
ca
n
t
l
y.
ASSESS ROOF STRENGTH
-
The
roof
members
MUST
be
s
t
r
on
g
enough
to
s
uppo
r
t
the
w
e
i
g
h
t
of the unit
99
lbs
(45kg)
without
any
roof
d
e
f
l
e
c
t
i
on
that will
cause
“pooling” of
water around
the unit.
C
on
t
ac
t
your
RV
m
a
nu
f
ac
t
u
r
e
r
to
confirm
the
max
load the roof
is able
to
handle.
If in
any
doubt
consider
the
use
of an e
x
t
e
r
n
a
l
“H” frame.
- If the roof
does
not
have an e
x
i
s
t
i
n
g
hole
one
m
u
s
t
be
c
u
t
.
C
u
t
from the roof
t
h
e
n
u
s
e
the roof
hole as a guide
to cut
t
h
r
ou
g
h
the
ceiling.
C
on
t
ac
t
your
RV
m
a
nu
f
ac
t
u
r
e
r
for
the
b
e
s
t
m
e
t
hod
to cut
t
h
r
ou
g
h
the roof.
-
The square hole
in the roof
(356 x
356mm,
14”
x
14
”
)
MUST
be boxed up
with minimum
3/4 inch
square timber
to
provide a
s
t
r
u
c
t
u
r
e
s
t
r
on
g
enough
to
w
i
t
h
s
t
a
nd
the
c
o
m
p
r
e
ss
i
on
of the
i
n
s
t
a
ll
a
t
i
on
bo
l
t
s
.
This is also
to
e
n
s
u
r
e
that
air
in not
drawn
from the roof cavity
(Fig
3 &
4).
R
e
m
e
m
b
e
r
to
leave access
for
wiring.
-
L
on
g
i
t
ud
i
n
a
l
s
MUST
be fixed securely
to the
t
r
a
n
s
ve
r
s
e
roof
members
to
t
r
a
n
s
f
e
r
load
(see Fig
3).
-
The above outline on
the left
shows
the
minimum clearance required around
the
ATWOOD
unit
on
the roof of the
vehicle,
d
i
s
t
a
n
c
e
s
shown are
ca
l
c
u
l
a
t
e
d
from a
14”
square hole (356 x
356mm)
-
The above outline on
the right
shows
the
minimum clearance required
around
the
Plenum
l
o
ca
t
e
d
on
the
ceiling inside
the
vehicle,
d
i
s
t
a
n
c
e
s
shown
are
ca
l
c
u
l
a
t
e
d
from
a
14”
square hole (356 x
356mm)
.79 MIN