ENGLISH
9
THE INDOOR UNIT INSTALLA
TION
Drain test
The air conditioner uses a drain pump to drain
water.
Use the following procedure to test the drain
pump operation:
- Connect the main drain pipe to the exterior
and leave it provisionally until the test comes
to an end.
- Feed water to the flexible drain hose and
check the piping for leakage.
- Be sure to check the drain pump for normal
operating and noise when electrical wiring is
complete.
- When the test is complete, connect the flexi-
ble drain hose to the drain port on the indoor
unit.
Feed
water
Drain Pump
Drain pan
Flexible drain hose
(accessory)
Main
drain pipe
Glue the joint
Drain
port
Drain hose connection
Use the clip (accessory)
- Heat insulation material to be prepared...
Adiabatic EPDM or NBR with thickness 10 to
20mm.
- Stick glass wool on all air conditioners that
are located in ceiling atmosphere.
- In addition to the normal heat insulation
(thickness: more than 8mm) for refrigerant
piping (gas piping: thick piping) and drain
piping, add further 10mm to 30mm
thickness material.
- Precautions in high humidity circumstance:
This air conditioner has been tested accord-
ing to the "KS Standard Conditions with Mist"
and confirmed that there is not any default.
However, if it is operated for a long time in
high humid atmosphere (dew point tempera-
ture: more than 23°C), water drops are liable
to fall. In this case, add heat insulation mate-
rial according to the following procedure:
Indoor
unit
Thermal insulator
(accessor
y)
Fast
ening band
(accessor
y)
Refrigerant
piping
Wiring C
onnection
- O
pe
n th
e co
ntr
ol b
ox c
ove
r an
d co
nn
ect t
he
Re
mo
te c
on
tro
lle
r co
rd a
nd I
nd
oo
r po
we
r wir
es.
- R
em
ove t
he c
on
tro
l bo
x co
ve
r fo
r ele
ctr
ica
l co
n-
ne
ctio
n be
tw
ee
n th
e in
do
or a
nd o
utd
oo
r un
it.
- Use the cord clamper to fix the cord.
Wired R
emote
Contr
oller Cor
d
(there is no need
in case of Wir
eless
Remo
te C
ontroller)
Contr
ol box co
ver
(On
which the Electric
Connection cor
d Wiring
Connection is put)
Connection
cord bet
ween the
indoor unit and
the outdoor unit
CA
UTION
The supplied flexible drain hose should not
be curved, neither screwed. The curved or
screwed hose may cause a leakage of
water.
!
Flexible drain hose
Flexible drain hose
Flexible drain hose
H HEA
T INSULA
TION
- Use the heat insulation material for the
refrigerant piping which has an excellent
heat-resistance (over 120°C).
