Sanyo MDF-U500VX - Page 44

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3. Procedure of charging refrigerant
1
)
Sto
p
vacuum
p
um
p
o
p
eration.
O
p
en the valve of tank to char
g
e refri
g
eran
t
to H sta
g
e side.
Gau
g
e
p
ressure: 0.2~0.5 M
p
a/G.
<Char
g
in
g
refri
g
erant>
2
)
Char
g
e refri
g
erant until
g
au
g
e shows
"1.6MPa/G" at criterion.
Shut the valve off.
Hold char
g
in
gp
i
p
e b
yp
liers to
p
inch it off
usin
g
b
yp
inch
p
liers.
Pinch
p
liers
3
)
O
p
en the valve a
g
ain to char
g
e refri
g
erant
to L sta
g
e side.
Run the unit to have refire
g
erant
p
ulled in throu
g
hl
y
until
g
au
g
e shows "0.01MPa/G" at criterion.
Turn the tank u
p
side down to char
g
e refri
g
erant
without remains.
<Char
g
in
g
to L sta
g
e side>
4
)
Measure the wei
g
ht of tank after char
g
in
g
.
Form the
p
i
p
e which was
p
inched off.
Run the unit to confirm coolin
gp
erformance.
Weld the
p
oints which were
p
inched
to enforce the
p
i
p
e.
<Weldin
g
the
p
i
p
e>