0
M
ET
AL
C
AS
E
EX
TE
N
SI
O
N
F
O
R
W
AL
LS
D
EE
PE
R
TH
AN
1
-
1/
8"
(1
1-
1/
8"
W
IT
H
S
U
B-
BA
SE
)
Fi
el
d
fa
br
ic
at
ed
–
g
e
re
co
m
m
en
ds
t
he
u
se
o
f o
ne
o
f t
he
d
ee
pe
r
R
A
B7
1
w
al
l c
as
es
o
ff
er
ed
a
s
sp
ec
ia
l o
rd
er
it
em
s.
CA
ULK*
SPLITTER
BETWEEN
AIR
IN
TAKE
AND
DISCHARGE
Zo
ne
lin
e
un
it
s
ca
n
be
in
st
al
le
d
in
wa
lls
o
f g
re
at
er
de
pt
h
th
an
t
he
wa
ll
ca
se
. W
he
re
t
he
ca
se
r
ec
es
si
on
is
le
ss
t
ha
n
"
a
nd
w
he
re
it
is
p
os
si
bl
e
to
wa
te
rp
ro
of
t
he
ex
po
se
d
si
de
s
an
d
to
p
of
t
he
o
pe
ni
ng
, t
he
s
ug
ge
st
ed
pr
oc
ed
ur
e
is
t
o
ap
pl
y
a
fla
sh
in
g
to
t
he
b
ot
to
m
o
f t
he
wa
ll
ca
se
a
s
sh
own
o
n
pa
ge
1.
W
he
re
wa
te
rp
ro
of
in
g
is
q
ue
st
io
na
bl
e
or
n
ot
p
os
si
bl
e,
o
r
fo
r
in
st
al
la
ti
on
s
in
wa
lls
o
f g
re
at
er
d
ep
th
, t
he
fo
llowi
ng
is
a
s
ug
ge
st
ed
ap
pl
ica
ti
on
p
ro
ce
du
re
. It
in
vo
lv
es
th
e
fie
ld
fa
br
ica
ti
on
o
f
a
ca
se
e
xt
en
si
on
. S
in
ce
t
he
wa
ll
ca
se
is
a
wa
te
r
be
ar
in
g
co
nt
ai
ne
r,
th
e
ex
te
nsi
on
li
ke
wi
se
m
us
t
al
so
b
e
wa
te
r
be
ar
in
g
an
d
th
e
co
nn
ec
ti
on
b
et
w
ee
n
th
e
tw
o
m
us
t
be
wa
te
rt
ig
ht
. T
he
ca
se
e
xt
en
si
on
m
us
t c
on
ta
in
s
pl
it
te
rs
to
pr
ev
en
t
re
ci
rc
ul
at
io
n
of
t
he
o
ut
do
or
a
ir
ci
rc
ui
t.
1.
T
he
ca
se
e
xt
en
si
on
is
f
ie
ld
fa
br
ica
te
d.
T
he
e
xt
en
si
on
de
pt
h
“D
”
sh
ou
ld
a
llow
fo
r
a
m
in
im
um
o
ut
do
or
pr
oj
ec
ti
on
o
f 1
/4
".
Th
is
a
llow
s
fo
r
ro
om
ca
bi
ne
t
cl
ea
ra
nc
e
to
t
he
f
in
is
he
d
wa
ll
an
d
am
pl
e
su
rfa
ce
s
to
a
pp
ly
s
ea
la
nt
o
r
ca
ul
ki
ng
fo
r
a
ti
gh
t
w
ea
th
er
s
ea
l
be
tw
ee
n
th
e
co
m
pl
et
ed
wa
ll
ca
se
/e
xt
en
si
on
a
ss
em
bl
y
an
d
th
e
wa
ll
op
en
in
g.
It
is
r
ec
om
m
en
de
d
th
at
t
he
ex
te
nsi
on
b
e
pa
in
te
d
an
d
co
rn
er
a
nd
la
p
jo
in
ts
b
e
ad
di
ti
on
al
ly
s
ea
le
d
wi
th
a
q
ua
lit
y
gr
ad
e
se
al
an
t.
2.
T
he
wa
ll
ca
se
a
nd
e
xt
en
si
on
s
ho
ul
d
be
c
on
ne
ct
ed
pr
io
r
to
in
st
al
la
ti
on
in
t
he
wa
ll
op
en
in
g.
A
q
ua
lit
y
gr
ad
e
se
al
an
t
sh
ou
ld
b
e
ap
pl
ie
d
to
a
ll
fo
ur
(4
) b
ut
ti
ng
fla
ng
es
. U
se
b
ol
ts
a
nd
n
ut
s
or
o
ve
rsi
ze
d
se
lf
ta
pp
in
g
sc
re
w
s
(d
ri
ve
n
fr
om
t
he
wa
ll
ca
se
t
o
th
e
ex
te
nsi
on
)
to
a
tt
ac
h
th
e
tw
o
as
se
m
bl
ie
s.
C
le
an
a
ll
dr
ai
n
ho
le
s
of
ex
ce
ss
s
ea
la
nt
. T
he
a
ss
em
bl
y
m
us
t
be
fr
ee
d
ra
in
in
g.
.
In
st
al
l f
la
sh
in
g,
u
si
ng
a
q
ua
lit
y
gr
ad
e
se
al
an
t b
et
w
ee
n
th
e
fla
sh
in
g
an
d
wa
ll
as
s
hown
in
s
ec
ti
on
A
-A
b
el
ow
.
4.
In
st
al
l t
he
wa
ll
ca
se
/e
xt
en
si
on
a
ss
em
bl
y
fo
llowi
ng
pr
oc
ed
ur
es
d
es
cr
ib
ed
fo
r
a
st
an
da
rd
in
st
al
la
ti
on
.
Se
e
di
ag
ra
m
s
be
low
. T
he
a
ss
em
bl
y
sh
ou
ld
b
e
se
al
ed
or
ca
ul
ke
d
to
t
he
wa
ll
ar
ou
nd
a
ll
fo
ur
si
de
s
bo
th
ou
td
oo
rs
a
nd
in
do
or
s.
N
O
TE
: T
he
wa
ll
ca
se
/e
xt
en
si
on
a
ss
em
bl
y
sh
ou
ld
be
le
ve
l.
5.
Su
gg
es
te
d
m
at
er
ia
ls
fo
r
ca
se
e
xt
en
si
on
a
nd
fl
as
hi
ng
sh
ou
ld
b
e
no
n-
fe
rr
ou
s
m
et
al
s.
Mi
ni
m
al
a
cc
ep
ta
bl
e
m
at
er
ia
l:
G
al
va
ni
ze
d
G
-9
0
pa
in
te
d.
SEALAN
T
- ALL
FOUR
(4)
FLANGES
6-1/4"
±
1/4"
A
S
REQ'D.
CUT
DRAIN
SL
O
TS
IN
BO
TH
FLANGES
(FOUR
REQ
UIRED)
TO
MA
TCH
DRAIN
HOLES
IN
RAB71/77
FLANGES
AND
DRAIN
HOLE
LOCA
TIONS
S
AME
A
S
ON
W
ALL
CA
SE
1"
WIDE
45°
DRIP
LIP
FLA
SHING
(FIELD
SUPPLIED)
13-3/4"
+
D"
2"
MIN.
D
10-5/8"
±
1/4"
CA
ULK*
CA
ULK*
CA
ULK*
W
ALL
-
ANY CONS
TRUCTION
RAB71/77
ROOM CABINET
CA
SE
EXT
.
S
E
E
D
E
TA
IL
S
E
C
T
IO
N
A
-A
*Caulk
around
perimeter
of
w
all
case
all
four
sides
where
it
joins
the
building
-
Interior
and
Exterior
.
EXTENSION
ALL
4
FLANGES
W
ALL
CA
SE
ALL
4
SIDES
W
ALL
FLA
SHING
ALL
4
SIDES
SECTION
A-A
BA
SEP
AN/FLANGE
DESIGN
SHO
WING
SEALAN
T
LOCA
TIONS.
1/4"
MIN.
RAB71/77 W
ALL
CA
SE
1-1/2"
(4
SIDES)
EXTENSION (FIELD SUPPLIED)
