Midea MCCU-7CN2 - Page 68

R40

L
t

C

O

S
n
f

U
t
P

L
t

R
5.3.

O

U

U
l
o
p

P
o

P
t
5.4
Us
e
7C CCU Tec
h
L
oosen and
he mainten
a
C
onnect the
O
pen the lo
w
S
tart the va
c
n
ut of valve
rom negati
v
U
pon compl
e
he vacuum
P
a (-76cmH
g
L
oosen and
ighten the s
R
emove the
5 Procedur
e
O
pen the sp
U
se a span
n
“Tightenin
g
U
pon compl
e
o
cated at th
p
rocedure o
f
P
rocedure o
f
o
pen it thor
o
P
rocedure o
f
horoughly.
Leak Detec
t
e
soap wate
r
hnical Manu
a
remove the
a
nce orifice
filler hose
a
w
pressure
(
c
uum pump
B, check w
h
v
e to 0). Th
e
e
tion of vac
u
pump. Kee
p
g
).
remove the
quare head
filler hose
o
e
of using s
t
ool until it t
o
n
er or a simi
g
torque”.
e
tion of inst
a
e outdoo
r
u
n
f
opening/cl
o
f
opening t
h
o
ughly. The
n
f
closing th
e
t
ion
r
or a leak d
a
l
maintenan
c
of valve A (
t
a
dapter to t
h
(
Lo) handle
to extract a
i
h
ether any
a
e
n tighten th
i
u
uming, tig
h
p
extracting
square-he
a
cover of va
o
ff the main
t
t
op valve
o
uches the
s
lar tool to ti
g
a
llation, op
e
n
it side. Of
t
o
sing the v
a
h
e valve: O
p
n
tighten th
e
e
valve: Sa
m
etector to c
h
Fil
Lo
c
e orifice nu
t
ighten both
h
e vacuum
p
o
f the mani
f
r. At the be
g
a
ir enters it (
t
i
s maintena
n
h
ten the low
air for over
a
d cover of
v
lves A and
B
t
enance orifi
s
top block.
D
g
hten the b
o
e
n all valves
t
he two valv
a
lve is show
n
en the squ
a
square-he
a
m
e as the pr
o
h
eck wheth
e
M
-76cmHg
ler hose
Lo
p
Multimete
-handle
Fig 2-13
t of valve A
,
valve A an
d
p
ump.
f
old valve c
o
g
inning of e
x
the vacuum
n
ce orifice
n
pressure (L
15 minutes.
v
alves A an
d
B
.
i
ce of valve
D
o not atte
m
o
nnet. The
b
before trial
v
es, one is g
n in the righ
a
re-head co
v
a
d cover.
o
cedure o
f
o
Fig 2-14
e
r gas leak
a
M
ani
f
old v
a
p
ressure v
a
r
,
and conne
c
d
valve B).
o
mpletely.
x
tracting air
pump nois
e
n
ut.
o
) handle o
f
Check wh
e
d
B. After o
p
A, and then
m
pt to open
f
b
onnet tight
e
run. Each
u
as valve an
t figure (Fig
v
er, use a s
p
o
pening the
a
ge exists a
t
a
lve
Filler hos
e
Hi -ha
n
a
lve
manome
t
c
t the filler
h
, slightly loo
e
changes
a
f
the manifol
e
the
r
the mu
p
ening valv
e
tighten the
f
urther.
e
ning torqu
e
u
nit has two
d
the other
i
2-14).
p
anner to c
a
valve, but r
o
the adapte
r
e
Vacuum pum p
n
dle
t
er
MCA
C
h
ose of the
m
o
sen the ma
i
a
nd the mult
l
d valve co
m
u
lti-meter po
e
s A and B
c
nut.
e
is shown i
n
valves of di
f
i
s liquid val
v
a
pture the s
q
r
otate the s
p
r
s.
C
-UTSM-20
1
m
anifold val
v
i
ntenance o
i-meter indi
c
m
pletely and
ints at -1.0
X
c
ompletely,
n
Table 3
f
ferent size
s
v
e. The
q
uare head
p
anner cloc
k
1
2-05
68
v
e to
rifice
c
ate
stop
X
10
s
and
k
wise