En-6
4-3. LOCKING THE OPERATION MODE OF THE AIR CONDITIONER (COOL, DRY, HEAT)
4-4. LOWERING THE OPERATION NOISE OF THE OUTDOOR UNIT
4-2. GAS CHARGE
Perform
gas
charge
to
unit.
)
Connect
gas
cylinder
to
the
service
port
of
stop
valve.
2)
Perform
air
purge
of
the
pipe
(or
hose)
coming
from
refrigerant
gas
cylinder.
3) Replenish specified amount of the refrigerant, while operating the air condi-
tioner
for
cooling.
Note:
In case of adding refrigerant, comply with the quantity specified for the refrigera -
ing
cycle.
CAUTION:
When
charging
the
refrigerant
system
with
additional
refrigerant,
be
sure
to
use
liquid
refrigerant.
Adding
gas
refrigerant
may
change
the
composition
of
the
refrigerant
in
the
system
and
affect
normal
operation
of
the
air
conditioner.
Also,
charge
the
liquid
refrigerant
slowly,
otherwise
the
compressor
will
be
locked.
To
maintain
the
high
pressure
of
the
gas
cylinder,
warm
the
gas
cylinder
with
warm water (under 40°C) during cold season. But never use naked
fi
re or steam.
•
Description
of
the
function:
With
this
function,
once
the
operation
mode
is
locked
to
either
COOL/DRY
mode
or
HEAT
mode,
the
air
conditioner
operates
in
that
mode
only.
*
Changing
the
setting
is
required
to
activate
this
function.
Please
explain
about
this
function
to
your
customers
and
ask
them
whether
they
want
to
use
it.
[How to lock the operation mode]
)
Be
sure
to
turn
off
the
main
power
for
the
air
conditioner
before
making
the
setting.
2)
Set
the
“
”
of
SW
on
the
outdoor
controller
board
to
ON
to
enable
this
func-
tion.
3)
To
lock
the
operation
mode
in
COOL/DRY
mode,
set
the
“2”
of
SW
on
the
outdoor
controller
board
to
OFF.
To
lock
the
operation
in
HEAT
mode,
set
the
same
switch
to
ON.
4)
Turn
on
the
main
power
for
the
air
conditioner.
•
Description
of
the
function:
With
this
function,
the
operating
noise
of
the
outdoor
unit
can
be
lowered
by
reducing
the
operation
load,
for
example,
during
nighttime
in
COOL
mode.
However,
please
note
that
the
cooling
and
heating
capacity
may
lower
if
this
function
is
activated.
*
Changing
the
setting
is
required
to
activate
this
function.
Please
explain
about
this
function
to
your
customers
and
ask
them
whether
they
want
to
use
it.
4-5. CHANGING THE AMPERE LIMIT
•
Description
of
the
function:
With this function, the amount of current that flows in the outdoor unit can be
changed.
Note:
Use
this
function
only
when
the
amount
of
current
exceeds
the
allowed
value.
[How to change the ampere limit]
)
Be
sure
to
turn
off
the
main
power
for
the
air
conditioner
before
making
the
setting.
2)
Make
the
setting
referring
to
the
table
below.
3)
Turn
on
the
main
power
for
the
air
conditioner.
Lower
the
operating
noise
[How to lower the operating noise]
)
Be
sure
to
turn
off
the
main
power
for
the
air
conditioner
before
making
the
setting.
2)
Set
the
“3”
of
SW
on
the
outdoor
controller
board
to
ON
to
enable
this
func-
tion.
3)
Turn
on
the
main
power
for
the
air
conditioner.
Union
Stop
valve
Liquid
pipe
Indoor
unit
Stop
valve
with
service
port
Gas
pipe
Refrigerant
gas
cylinder
operating
valve
(for
R4
0A)
Gauge
manifold
valve
(for
R4
0A)
Charge
hose
(for
R4
0A)
Refrigerant
gas
cylinder
for
R4
0A
with
siphon
Electronic
scale
for
refrigerant
charging
Refrigerant
(liquid)
Outdoor
unit
*
E
unit
is
for
5D
02VA
only.
Union
Union
Union
HEAT
COOL/DRY
SW2
MXZ-5D
02VA
MXZ-4D83VA
0.5
A
0.5
A
5.5
A
5.5
A
Factory
setting
Full
Factory
setting
Full
JG79A662H01_en.indd 6
2012/09/24 (月) 午後 7:00:11
