TES
T RUNNING
Bolt
Tubing connection
Check that
all tubing
and wiring
have
been
properly
connected.
Check that
the gas
and liquid
side ser
vice valv
es
are
fully open.
1.
2.
Ensure
the diff
erence
betw
een the
intake
temperatur
e and
the dischar
ge is
more
than 8°C
(Cooling)
or rev
ersely (Heating).
3.
A
Prepar
e remot
e control
Remove the
battery cover
by pulling
it according
to the
arrow direction.
Insert new
batteries making
sure that
the (+)
and (–)
of
battery are
installed correctly
.
Reattach the
cover by
pushing it
back into
position.
Use 2
AAA(1.5volt) batteries.
Do not
use
rechargeable batteries.
Remove the
batteries from
the remote
control if
the system
is not
going to
be used
for a
long
time.
B
Settlement of out
door unit
Anchor the
outdoor unit
with a
bolt and
nut ø10mm)
tightly and
horizontally on
a concrete
or rigid
mount.
When installing
on the
wall, roof
or rooftop,
anchor
the mounting
base securely
with a
nail or
wire
assuming the
influence of
wind and
earthquake.
In the
case when
the vibration
of the
unit is
conveyed to
the hose,
secure the
unit with
an
anti-vibration rubber
.
C
Evaluation o
f the performance
Operate unit
for 15~20
minutes, then
check the
system refrigerant
charge:
Measure the
pressure of
the gas
side service
valve.
Measure the
temperature of
the intake
and
discharge of
air.
1.
2.
Discharge
temperature
Discharge air
Intake temperature
1.
2.
3.
INSTALL
ATION
20
For
ref
erence;
the gas
side pr
essure
of optimum
condition is
as below
(Cooling).
4.
If the
actual pressure
is higher
than shown,
the
system is
most likely
over-charged, and
charge
should be
removed. If
the actual
pressure is
lower than
shown, the
system is
most likely
undercharged, and
charge should
be added.
The air conditioner is now ready for use.
2
kgf/cm
2
kgf/cm
PUMP DOWN
This is performed
when the unit is to be
relocat
ed or the refrigerant cir
cuit is serviced.
Pump Down means collecting all refrigerant in the
outdoor unit without loss in refrigerant gas.
CAUTION:
Be sure to perform Pump Down procedure with the
unit cooling mode.
Pump Down Procedur
e
Connect a
low-pressure gauge
manifold hose
to the
charge port
on the
gas side
service valve.
Open the gas side service valve halfway and purge
the air from the manifold hose using the refrigerant
gas.
Close the liquid side service valve(all the way in).
Turn on the unit's operating switch and start the
cooling operation.
When the low-pressure gauge reading becomes 1
2
to 0.5kg/cmG(14.2 to 7.1 P
.S.I.G.), fully close the
gas side valve stem and then quickly turn off the
unit. At that time, Pump Down has been completed
and all refrigerant gas will have been collected in
the outdoor unit.
1.
2.
3.
4.
5.
