Hitachi RAC-18WSPA, Service Manual

Page: 9 / 101

RAC-18WSPA
780
280
218
RAK-18PSPA
,
RAK-25PSPA,RAK-35PSPA
792
600
299
RAC-18WSPA,RAC-25WSPA,RAC-35WSPA
Air filter T
o
pre
v
ent dust from coming into the indoor unit.
(Refer page 6) Fr
ont panel
Indoor unit indicator
s
Light indicator sho
wing the operating condition.
(Ref
er page 5)
Horizontal deflector
V
e
rtical deflector
(Air Outlet) Remote contr
oller
Send out operation signal to the indoor unit. So as to operate the whole unit.
NAMES AND FUNCTIONS OF EACH PART
INDOOR UNIT OUTDOOR UNIT
Air outlet When “heating” operation is performed, cool air blows and when “cooling” or “dehumidifying” operation is performed, warm air blows.
Drain hose Drains the dehumidified water from the indoor unit to the outdoor during “cooling” or “dehumidifying” operation. Piping and
Wiring
Air inlets (Rear and left sides)
MODEL NAME AND DIMENSIONS
MODEL
WIDTH (mm)
HEIGHT
(mm)
DEPTH (mm)
Drain por
t
(Bottom)
Ear
th terminal
(Lo
wer section of the side)
About the outdoor unit: s
When “Stop” is selected during operation of the indoor unit, the fan of the outdoor unit continues
turning
for 10 to 60
seconds to cool the electric parts down.
s
In heating operation, c
o
ndensate or
w
ater due to defrosting will flo
w
.
Do not cover the drain port of the
outdoor
unit because such water may freeze in the chilly area.
7( 03
2 5$ 5<
6:
, 7& +
– 4 –
RAC-25WSPA RAC-35WSPA
(Refer page
)
7
NAMES AND FUNCTIONS OF EACH P
A
R
T
INDOOR UNIT INDICA
TIONS
TIMER LAMP (Orang
e)
This lamp lights when the timer is w
o
rking.
OPERA
TION LAMP (Y
ello
w)
This lamp lights dur
ing operation.
The OPERA
TION LAMP flashes
in
t
h
e
f
o
ll
ow
in
g cases dur
ing
heating. (1)
During preheating F
or about 2-3 min
utes after
star
ting up
.
(2)
During defr
osting
Defrosting
will be perf
or
med
a
b
o
u
t o
n
c
e
a
n
h
o
u
r
when
frost
fo
rms on the heat e
xchanger
of
the outdoor unit, f
or 5-10
min
utes each time
.
TEMPORAR
Y SWITCH
Use this s
witch to star
t and stop when the remote
controller does not w
o
rk
.
This tempor
ar
y operation will be at the most recent
setting made
. (The unit will immediately go into
automatic oper
ation once po
w
er is s
witched on.)
CA
UTION
T
u
rn
off the circuit break
er or pull out
the po
w
e
r plug if the unit is not be
oper
ated f
or a long per
iod.
If the po
w
er sta
ys on and the unit is not operated, po
w
er is slightly consumed in the control circuit.
The po
w
er is sa
v
ed b
y
tur
ning off the po
wer s
witch (or the circuit break
er when the po
w
er is supplied
from the outdoor unit).
7( 03
25 $5
<
6:,
7&
+
ENGLISH
– 5 –