Midea MCCU-10CN2, Technical Manual

Page: 68 / 74

R40

L
t

C

O

S
n
f

U
t
P

L
t

R
5.3.

O

U

U
lo
p

P
o

P
t
5.4
Use
7C CCU Tech
Loosen and
he maintena
Connect the
Open the low
Start the vac
nut of valve
rom negativ
Upon comple
he vacuum
Pa (-76cmHg
Loosen and
ighten the s
Remove the
5 Procedure
Open the sp
Use a spann
“
Tightening
Upon comple
ocated at th
procedure of
Procedure of
open it thoro
Procedure of
horoughly.
Leak Detect
e soap water
hnical Manua
remove the
ance orifice
filler hose a
w pressure (
cuum pump
B, check wh
ve to 0). The
etion of vacu
pump. Keep
g).
remove the
quare head
filler hose o
e of using st
ool until it to
ner or a simi
g torque
”
.
etion of insta
e outdoor un
f opening/clo
f opening th
oughly. Then
f closing the
tion
r or a leak d
al
maintenanc
of valve A (t
adapter to th
(Lo) handle
to extract ai
hether any a
en tighten thi
uuming, tigh
p extracting
square-hea
cover of va
off the maint
top valve
ouches the s
lar tool to tig
allation, ope
nit side. Of t
osing the va
he valve: Op
n tighten the
e valve: Sam
etector to ch
Fil
Lo
ce orifice nu
tighten both
he vacuum p
of the manif
r. At the beg
air enters it (t
is maintenan
hten the low
air for over
ad cover of v
lves A and B
tenance orifi
stop block. D
ghten the bo
en all valves
the two valv
alve is shown
en the squa
square-hea
me as the pro
heck whethe
M
-76cmHg
ler hose
Lo p
Multimete
-handle
Fig 2-13
t of valve A,
valve A and
pump.
fold valve co
ginning of ex
the vacuum
nce orifice n
pressure (L
15 minutes.
valves A and
B.
ice of valve
Do not attem
onnet. The b
before trial
ves, one is g
n in the righ
are-head cov
ad cover.
ocedure of o
Fig 2-14
er gas leaka
Manifold va
pressure va
r
, and connec
d valve B).
ompletely.
xtracting air
pump noise
nut.
o) handle of
Check whe
d B. After op
A, and then
mpt to open f
bonnet tighte
run. Each u
as valve an
t figure (Fig
ver, use a sp
opening the
age exists at
alve
Filler hose
Hi -han
alve
manomet
ct the filler h
, slightly loo
e changes a
f the manifol
ether the mu
pening valve
tighten the
further.
ening torque
unit has two
d the other i
2-14).
panner to ca
valve, but ro
the adapter
e
Va
c
u
u
m
p
u
m
p
ndle
ter
MCAC
hose of the m
osen the mai
and the mult
ld valve com
ulti-meter po
es A and B c
nut.
e is shown in
valves of dif
is liquid valv
apture the sq
rotate the sp
rs.
C-UTSM-201
manifold valv
intenance o
i-meter indic
mpletely and
ints at -1.0X
completely,
n Table 3
fferent sizes
ve. The
quare head
panner clock
12-05
68
ve to
rifice
cate
stop
X10
s
and
kwise