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�S
TA
RT�
C
heck
th
e
existing
pipe
siz
e
Sta
nd
ard
size
No
n-sta
nd
ard
si
ze
Re
use
eW.g
�
a
I I
owed
Se
e
if
th
e
al
re
ad
y
in
st
al
led
a
ir
cond
itione
r
can
op
er
ate
and
pe
rform
f--
_
_
_
_
_
__,
a
pu
mp
-d
own
op
eration.
Bot
h
op
erat
ion
an
d
pump-d
own
ar
e
po
ssi
ble
Ch
ec
k
th
e
exis
tin
g
pipe
le
ng
th.
20m
or
le
ss
Afte
r
30
min
ute
s
of
co
oli
ng
opera
ti
on
, p
roceed
w i
th
pu
mp
-d
own
o p
e rat
i o
n
w i
tho
u t
i n
t e
r r
u p
t i
on
.
Re
mov
e
th
e
exis
tin
g
air
co
ndi
ti
oner
.
PR
EC
AU
TI
ON
S
ON
RE
FRI
GE
RA
NT
P
IP
IN
G
■
Clean
p
ip
e
if
e
xi
st
ing
a
ir
con
dition
er
i
s
[gas,
oi
l
hea
t
pu
mp
typ
e]
.
■
Clean
p
ip
e
if
us
ed
c
om
pres
so
r
oil
in
ex
isting
air
conditione
r
is
othe
r
th
an
[SU
NI
SO
,
MS
,
HAB,
Bar
re
l
fre
eze
,
JOM
O,
Eth
er
ea
l
oi
l,
Est
er
Di
ll
.
■
Clean
p
ip
e
if
e
xi
st
ing
i
ndoor
a
nd
o
utd
oo
r
uni
t
is
disc
onne
ct
ed.
■
Ch
an
ge
ne
w
pi
pe
if
ref
rig
era
nt
le
akage
or
it
sh
ou
ld
addin
g
re
fri
ge
ra
nt
.
■
Ch
an
ge
ne
w
he
at
in
su
la
tio
n
if
ex
is
tin
g
par
t
is
peelin
g
off.
Ope
ration
n
ot
po
ss
ib
le
pu
mp
-d
own
op
er
ation
no
t
po
ss
ib
le.
(No
te)
(])
C
lean
th
e
pipe
if
refr
iger
ant
lea
ka
ge
an
d
un
it
h
as
not
se
rvice
port
on
ga
s-
I iqu
id
s
to
p
va
lv
e.
(2)
If
in
door
uni
t
eq
uippe
d
with
EV
val
ve
,
open
th
at
valve
be
for
e
re
cove
ry
re
frig
eran
t.
@
Maxim
um
p
ip
e
le
ng
th
as
pe
r
spe
cif
ie
d
on
n
ex
t
pag
e.
.....
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66
Summary of Contents for RZVFQ50
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