Hitachi RAS-E10H2 User manual

AW NO. 0015E
SERVICE MANUAL
TECHNICAL INFORMATION
REFER TO THE FOUNDATION MANUAL
ROOM AIR CONDITIONER
INDOOR UNIT + OUTDOOR UNIT
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
Printed in Japan (TSK)
FOR SERVICE PERSONNEL ONLY
SPECIFICATIONS
SPECIFICATIONS ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥4
HOW TO USE ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥5
CONSTRUCTION AND DIMENSIONAL DIAGRAM ‥‥15
MAIN PARTS COMPONENT ‥‥‥‥‥‥‥‥‥‥17
WIRING DIAGRAM ‥‥‥‥‥‥‥‥‥‥‥‥‥‥19
WIRING DIAGRAM OF THE PRINTED WIRING BOARD ‥20
BLOCK DIAGRAM‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥25
BASIC MODE‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥27
REFRIGERATING CYCLE DIAGRAM ‥‥‥‥‥‥36
DESCRIPTION OF MAIN CIRCUIT OPERATION ‥‥‥37
SERVICE CALL Q & A ‥‥‥‥‥‥‥‥‥‥‥‥67
TROUBLE SHOOTING  ‥‥‥‥‥‥‥‥‥‥‥‥70
PROCEDURE FOR DISASSEMBLY AND REASSEMBLY
‥‥94
PARTS LIST AND DIAGRAM ‥‥‥‥‥‥‥‥‥96
CONTENTS
AW NO. 0015E
RAS-E10H2 / RAC-E10H2
RAS-E10H2 /
RAC-E10H2
RAS-E10H2
RAC-E10H2
(W)
(A)
(kW)
(B.T.U./h)
(W)
(A)
(kW)
(B.T.U./h)
W
H
D
(kg)
DC INVERTER (WALL TYPE)
TYPE
MODEL
POWER SOURCE
TOTAL INPUT
TOTAL AMPERES
CAPACITY
TOTAL INPUT
TOTAL AMPERES
CAPACITY
DIMENSIONS
(mm)
NET WEIGHT
COOLING
HEATING
RAS-E10H2 RAC-E10H2
780
280
210
9.5
INDOOR UNIT OUTDOOR UNIT
1 PHASE, 50Hz, 220-230V
700 (155 - 1,290)
3.75 - 3.59
2.50 (0.90 - 3.10)
8,530 (3,070 - 10,580)
880 (115 - 1,250)
4.45 - 4.26
3.40 (0.90 - 4.40)
11,600 (3,070 - 15,010)
700(+68)※
(+48)※
505
258
27
After installation
※
FEBRUARY 2006 Hitachi Household Appliances (Wuhu) Co.,Ltd.

1.
In order to disassemble and repair the
unit in question, be sure to disconnect the
power cord plug from the power outlet
before starting the work.
2.
If it is necessary to replace any parts, they should be replaced with respective genuine parts for the unit
,
and the replacement must be ef
fected in correct manner according to the instructions in the Service
Manual of the unit.
3.
After completion of repairs, the initial state should be
restored.
4.
Lead wires should be connected and laid as in the
initial state.
5.
Modification of the unit by the user himself should
absolutely be prohibited.
6.
T
ools and measuring instruments for use in repairs or inspection should be accurately calibrated in
Tools and measuring instruments for use in repairs or inspection should be accurately calibrated inT
advance.
7.
In installing the unit having been repaired, be careful to prevent the occurrence of any accident such as
electrical shock, leak of current, or bodily injury due to the drop of any part.
8.
T
o check the insulation of the unit, measure the insulation resistance between the power cord plug and
To check the insulation of the unit, measure the insulation resistance between the power cord plug andT
grounding terminal of the unit.
The insulation resistance should be 1M
Ω
or more as measured by a 500V DC megger
.
9.
The initial location of installation such as window
, floor or the other should be checked for being safe
enough to support the repaired unit again.
If it is found not so strong and safe, the unit should be installed at the initial location after reinforced
or
at a new location.
10.
Any inflammable object must not be placed
about the location of installation.
11
.
Check the grounding to see whether it is
proper or not, and if it is found improper
,
connect the grounding terminal to the earth.
Spray
gasoline
gasbombe
thinner
SAFETY
DURING REP
SAFETY DURING REPSAFETY
AIR WORK
If the
contacts of electrical
parts are defective, replace
the electrical parts without
trying to repair them
1
2
3
4
5
DANGER

WORKING ST
ANDARDS FOR PREVENTING BREAKAGE OF SEMICONDUCT
WORKING STANDARDS FOR PREVENTING BREAKAGE OF SEMICONDUCTWORKING ST
ORS
1. Scope
The standards provide for items to be generally observed in carrying and handling semiconductors in
relative manufactures during maintenance and handling thereof. (They apply the same to handling of
abnormal goods such as rejected goods being returned.)
2. Object parts
(1) Micro computer
(2) Integrated circuits (I.C.)
(3) Field ef
fective transistor (F
.E.T
.)
.E.T.).E.T
(4) P
.C. boards or the like to which the parts mentioned in (1) and (2) of this paragraph are equipped.
3. Items to be observed in handling
(1) Use a conductive container for carrying and storing of parts. (Even rejected goods should be handled in
the same way
.)
(2) When any part is handled uncovered (in counting, packing and the like), the handling person must
always use himself as a body earth. (Make yourself a body earth by passing one M ohm earth
resistance through a ring or bracelet.)
(3) Be careful not to touch the parts with your clothing when you hold a part even if a body earth is
being taken.
(4) Be sure to place a part on a metal plate with grounding.
(5) Be careful not to fail to turn of
f power when you repair the printed circuit board.
At the same time,
try to repair the printed circuit board on a grounded metal plate.
HITACH I IC401TH1 ,188UV
Fig. 1 Conductive container
A
conductive polyvinyl bag
A conductive polyvinyl bagA
IC
IC
Conductive sponge
Fig. 2 Body earth
Body earth (Elimik conductive band)
Body earth (Elimik conductive band)
Clip for connection with
Clip for connection with
a grounding wire
a grounding wire
1M
Ω
- 1
-

(6) Use a three wire type soldering iron including a grounding wire.
Fig.4 Grounding a solder iron
Use a high insulation mode (100V
, 10M
Ω
or higher) when ordinary iron is to be used.
(7) In checking circuits for maintenance, inspection, or some others, be careful not to have the test probes
of the measuring instrument shortcircuit a load circuit or the like.
Bare copper wire (for body earth)
Metal plate (of
Al. stainless steel, etc.)
W
orking table
Resistor 1M
Ω
(1/2W)
Earth wirte
Staple
Fig.3 Grounding of the working table
soldering iron
Grounding wire
Screw stop at the screwed
part using a rag plate
!
CAUTION
- 2
-

1.
In
quiet
operation
or
stopping
the
r
unning,
slight
flo
wing
noise
of
refr
iger
ant
in
the
refr
iger
ating
cycle
is
heard occasionally
,
bu
t this noise is not abnor
mal
fo
r the operation.
2.
When
it
thunders
near
by
,
by, by
it
is
recommend
to
stop
the
operation
and
to
disconnect
the
po
we
r
cord
plug
from
the
po
wer
outlet
fo
r
saf
et
y.
3.
The
room
air
conditioner
does
not
start
automatically
after
recovery
of
the
electric
power
failure
for
prevent
-
ing
fuse
bl
ow
ing.
Re-press
ST
AR
STARST
T/ST
OP
bu
tton
after
3
minutes
from
when
unit
stopped.
4.
If the room air conditioner is stopped by adjusting thermostat, or missoperation, and re-start in a moment
,
there
is
occasion
that
the
cooling
and
heating
operation
does
not
start
for
3
minutes,
it
is
not
abnormal
and
this is the result of the operation of IC del
ay
circuit.
This IC del
ay
circuit ensures that there is no danger of
bl
ow
ing fuse or damaging par
ts
ev
en if operation is restar
ted accidentally
.
5.
This
room
air
conditioner
should
not
be
used
at
the
cooling
operation
when
the
outside
temperature
is
below 10°C (50°F)
.
6.
This
room
air
conditioner
(the
re
ve
rse
cycle)
should
not
be
used
when
the
outside
temperature
is
bel
ow
–15°C (5°F)
.
If the re
v
erse cycle is used under this condition, the outside heat e
xchanger is frosted and efficiency
fa
lls
.
7.
When
the
outside
heat
exchanger
is
frosted,
the
frost
is
melted
by
operating
the
hot
gas
system,
it
is
not
troub
le that at this time fan stops and the vapour ma
y
ri
se from the outside heat exchanger
.
!
CAUTION
- 3
-

SPECIFICATIONS
MODEL
FAN MOTOR
FAN MOTOR CAPACITOR
FAN MOTOR PROTECTOR
COMPRESSOR
COMPRESSOR MOTOR CAPACITOR
OVERLOAD PROTECTOR
OVERHEAT PROTECTOR
FUSE (for MICROPROCESSOR)
POWER RELAY
POWER SWITCH
TEMPORARY SWITCH
SERVICE SWITCH
TRANSFORMER
VARISTOR
NOISE SUPPRESSOR
THERMOSTAT
REMOTE CONTROL SWITCH (LIQUID CRYSTAL)
40 W
NO
NO
NO
ASC092CD
YES
YES
3.0A
G4A
NO
NO
YES
NO
450NR
YES
YES(IC)
NO
WITHOUT REFRIGERANT BECAUSE
COUPLING IS FLARE TYPE.
UNIT
PIPES (MAX. 20m)
REFRIGERANT CHARGING
VOLUME
(Refrigerant 410A)
RAC-E10H2
820g
RAS-E10H2
PWM DC35V
NO
NO
—
NO
NO
NO
NO
NO
YES
NO
NO
NO
NO
YES(IC)
YES
----------
YES
HOW TO USE
SAFETY PRECAUTION
PRECAUTIONS DURING INSTALLATION
PRECAUTIONS DURING SHIFTING OR MAINTENANCE
PRECAUTIONS DURING OPERATION
- 4
-

SPECIFICATIONS
MODEL
FAN MOTOR
FAN MOTOR CAPACITOR
FAN MOTOR PROTECTOR
COMPRESSOR
COMPRESSOR MOTOR CAPACITOR
OVERLOAD PROTECTOR
OVERHEAT PROTECTOR
FUSE (for MICROPROCESSOR)
POWER RELAY
POWER SWITCH
TEMPORARY SWITCH
SERVICE SWITCH
TRANSFORMER
VARISTOR
NOISE SUPPRESSOR
THERMOSTAT
REMOTE CONTROL SWITCH (LIQUID CRYSTAL)
40 W
NO
NO
NO
ASC092CD
YES
YES
3.0A
G4A
NO
NO
YES
NO
450NR
YES
YES(IC)
NO
WITHOUT REFRIGERANT BECAUSE
COUPLING IS FLARE TYPE.
UNIT
PIPES (MAX. 20m)
REFRIGERANT CHARGING
VOLUME
(Refrigerant 410A)
RAC-E10H2
820g
RAS-E10H2
PWM DC35V
NO
NO
—
NO
NO
NO
NO
NO
YES
NO
NO
NO
NO
YES(IC)
YES
----------
YES
HOW TO USE
SAFETY PRECAUTION
•
Please
read
the
“
Saf
ety
Safety Saf
Precaution
”
carefully
bef
ore
before bef
operating
the
unit
to
ensure
correct
usage
of
the
unit.
• P
ay
special
attention
to
signs
of
“
W
arning
”
and
“
Caution
”.
The
“W
ar
ning
”
section
contains
matters
which,
if
not
obser
v
ed
str
ictly
,
ictly, ictly
ma
y
cause
death
or
ser
ious
injur
y.
The
“Caution”
section
contains
matters
which
ma
y
result
in
ser
ious
consequences
if
not
obser
v
ed
proper
ly
.
ly. ly
Please
obser
ve
all instr
uctions str
ictly to ensure saf
ety
.
•
The signs indicate the f
ollo
wing meanings
.
(The f
ollo
wing are e
xamples of signs
.)
•
Please k
eep this man
ual after reading.
This
sign
in
the
figure
indicates
prohibition.
Indicates the instructions that m
ust be f
ollo
wed.
W
ARNING
WARNINGW
CA
UTION
•
Do not reconstr
uct the unit.
W
ater leakage
, f
ault, shor
t circuit or fire ma
y occur if y
ou reconstr
uct the unit
by
y
ourself
.
•
Please
ask
y
our
sales
agent
or
qualified
technician
f
or
the
installation
of
y
our
unit.
W
ater leakage
, shor
t circuit or fire ma
y occur if y
t circuit or fire may occur if yt circuit or fire ma
ou install the unit b
y y
ourself
.
•
Please use ear
th line
.
Do
not
place
the
ear
th
line
near
w
ater
or
gas
pipes
,
lightning-conductor
,
or
the
ear
th
line
of
telephone
.
Improper
installation
of
ear
th
line
ma
y
may ma
cause
electr
ic
shoc
k.
•
Be
sure
to
use
the
specified
piping
set
f
or
R410A.
Otherwise
,
this
ma
y
may ma
result
in
brok
en copper pipes or f
aults
.
•
A circuit break
er should be installed depending on the mounting site of the unit.
Without a circuit break
er
, the danger of electric shoc
k e
xists
.
•
Do not install the unit near a location where there is flammab
le gas
.
The outdoor unit ma
y catch fire if flammab
The outdoor unit may catch fire if flammabThe outdoor unit ma
le gas leaks around it.
Piping shall be
suitab
le suppor
ted with a maximum spacing of 1m betw
een the suppor
ts
.
•
Please
ensure
smooth
flo
w
of
w
ater
when
installing
the
drain
hose
.
If
an
y
f
ailure
is
f
ound
in
the
drain
path,
w
ater
drops
from
the
indoor
and
outdoor
units
,
causing
w
et
household
eff
ects
.
•
Mak
e sure that a single phase 230V po
wer source is used.
The
use
of
other
po
w
er
sources
ma
y
cause
electr
ical
components
to
ov
erheat
and lead to fire
.
PR
OHIBITION
CONNECT EAR
TH LINE
PR
OHIBITION
PR
OHIBITION
•
Should
abnor
mal
situation
ar
ise
(lik
e
bu
r
ning
smell),
please
stop
oper
ating
the
unit
and
remo
ve
plug
from
the
soc
k
et
or
tur
n
off
the
circuit
break
er
.
Contact
y
our
agent.
F
ault,
shor
t
circuit
or
fire
ma
y
occur
if
y
ou
contin
ue
to
operate
the
unit
under abnor
mal situation.
•
Please
contact
y
our
agent
f
or
maintenance
.
Improper self maintenance ma
y cause electric shoc
k and fire
.
•
Please contact y
our agent if y
ou need to remo
ve
and reinstall the unit.
Electr
ic shoc
k or fire ma
y occur if y
k or fire may occur if yk or fire ma
ou remo
ve
and reinstall the unit y
ourself improper
ly
.
ly.ly
W
ARNING
WARNINGW
PRECAUTIONS DURING INSTALLATION
PRECAUTIONS DURING SHIFTING OR MAINTENANCE
“OFF
”
PR
OHIBITION
• A
v
• Av• A
oid an e
xtended per
iod of direct air flo
w f
or y
our health.
•
Do
not
connect
the
pow
er
calbe
with
an
e
xtension
cab
le
or
do
not
plug
too
man
y
leads of the other electr
ic appliance into the soc
k
et where this cab
ket where this cabk
le is plugged.
In
addition,
wire
the
cab
le
with
some
allo
w
ances
to
pre
v
ent
the
cab
le
from
stretching.
Not doing so will cause an electrical shoc
k, heat gener
ation or fire
.
PR
OHIBITIO
N
•
Do
not
put
objects
lik
e
thin
rods
into
the
panel
of
blower
and
suction
side
because the high-speed f
an inside ma
y cause danger
an inside may cause dangeran inside ma
.
•
Do not b
undle the po
w
er cab
le
, pull it, put something on it, heat it, process it, or
put it betw
een things
.
Breakage of the po
w
er cab
le ma
y result.
le may result.le ma
Use of a damaged cab
le ma
y cause an electrical shoc
le may cause an electrical shocle ma
k or a fire
.
PR
OHIBITION
PR
OHIBITION
– 2
–
– 3
–
W
ARNING
WARNINGW
PRECAUTIONS DURING OPERATION
•
Do not use any conductor as fuse wire, this could cause fatal accident.
PROHIBITION
•
Dur
ing thunder stor
m, disconnect the plug top or tur
n off the circuit break
er
.
•
Spray cans and other combustibles should not be located within a meter of the air
outlets of both indoor and outdoor units
.
As
a
spr
ay
can
’s
inter
nal
pressure
can
be
increased
by
hot
air
,
a
r
upture
ma
y
may ma
result.
“OFF
”
CAUTION
PROHIBITIO
N
•
The
product
shall
be
operated
under
the
man
uf
acturer
specification
and
not
fo
r
an
y other intended use
.
PR
OHIBITION
DON’T
W
ET
•
Do
not
attempt
to
operate
the
unit
with
wet
hands
,
this
could
cause
f
atal
accident.
STRICTL
Y OBSE
STRICTLY OBSESTRICTL
RV
E
PRECA
UTIONS
PR
OHIBITION
PR
OHIBITION
PR
OHIBITION
PR
OHIBITION
PR
OHIBITION
•
When
operating
the
unit
with
bu
r
ning
equipments
,
regular
ly
v
entilate
the room to
av
oid o
xygen insufficiency
.
xygen insufficiency.xygen insufficiency
•
Do not direct the cool air coming out from the air-conditioner panel to
f
ace
household
heating
apparatus
as
this
ma
y
may ma
aff
ect
the
wo
r
king
of
apparatus such as the electric k
ettle
, o
v
en etc.
•
Do
not
w
ash
the
unit
with
water
or
place
a
w
ater
container
such
as
a
vase on the indoor unit.
Electrical leakage could be present and cause electric shock.
•
Please
ensure
that
outdoor
mounting
frame
is
alw
a
ys
stab
le
,
fir
m
and
without
def
ect.
If
not,
the
outdoor
unit
ma
y
collapse
and
cause
danger
.
•
Do
not
place
plants
or
animals
directly
under
the
air
flow
as
it
is
bad
f
or
the
plants
or
animals
.
•
Do not climb on the outdoor unit or put objects on it.
PR
OHIBITION
PR
OHIBITION
PR
OHIBITION
DON’T
TO
UCH
DON’T
TO
UC
H
•
When oper
ating the unit with the door and windows opened, (the room humidity
is
alw
a
ys
abo
ve
80%)
and
with
the
air
deflector
f
acing
do
wn
or
mo
ving
automati-
cally
f
or
a
long
per
iod
of
time
,
water
will
condense
on
the
air
deflector
and
drips
do
wn
occasionally
.
occasionally. occasionally
This
will
wet
y
our
fur
niture
.
Theref
ore
,
do
not
oper
ate
under
such condition f
or a long time
.
•
If
the
amount
of
heat
in
the
room
is
abo
ve
the
cooling
or
heating
capability
of
the
unit
(f
or
e
xample:
more
people
entering
the
room,
using
heating
equipments
and
etc.), the preset room temper
ature cannot be achie
v
ed.
•
Indoor
unit
cleaning
must
be
perf
or
med
by
author
iz
ed
personnel
only
.
only. only
Consult
y
our sales agent.
Using
a
commercially
av
ailab
le
detergent
or
similar
can
damage
the
plastic
par
ts
or clog the dr
ain pipe
, causing w
ater to drip with potential electr
ic shoc
k hazard.
•
Do
not
touch
the
air
outlet,
bottom
surf
ace
and
alumin
um
fin
of
the
outdoor
unit.
Y
ou ma
You maY
y get hur
t.
•
Do not touch the refr
iger
ant pipe and connecting v
alv
e.
Bur
ns ma
y result.
- 5
-

– 4
–
NAMES AND FUNCTIONS OF EACH PART
INDOOR UNIT
Air filter
To
pre
v
ent dust from coming into the indoor unit.
(Ref
er page 16)
Fr
ont panel
Indoor unit indicator
s
Light indicator sho
wing the operating condition.
(Ref
er page 5)
Horizontal deflector
V
er
VerV
tical deflector
(Air Outlet)
(Ref
er page 15)
Remote contr
oller
Send
out
oper
ation
signal
to
the
indoor
unit.
So
as
to oper
ate the whole unit.
(Ref
er page 6)
MODEL NAME AND DIMENSIONS
OUTDOOR UNIT
Drain hose
Dr
ains
the
dehumidified
w
ater
from
the
indoor
unit
to
the
outdoor
during
“
cooling
”
or
“dehumidifying
”
operation.
Piping and
Wiring
Air inlets (Rear and left sides)
About the outdoor unit:
•
When
“Stop”
is
selected
during
operation
of
the
indoor
unit,
the
f
an
of
the
outdoor
unit
contin
ues
tur
ning
f
or
10
to
60
seconds
to
cool
the electr
ic par
ts down.
•
In
heating
oper
ation,
condensate
or
w
ater
due
to defrosting will fl
ow
.
Do
not
co
v
er
the
dr
ain
por
t
of
the
outdoor
unit
because
such
w
ater
ma
y
may ma
freez
e
in
the
chilly
area.
•
When
the
outdoor
unit
is
hung
on
the
ceiling,
install
the
b
ush
and
dr
ain
pipe
on
the
dr
ain
por
t and dr
ain w
ater
.
Drain por
t (Bottom)
Ear
th terminal
(Lo
wer section of the side)
MODEL
WIDTH (mm)
HEIGHT (mm)
DEPTH (mm)
RAS-E10H2, RAS-E14H2
780
280
210
RA
C-E10H2
700
505
258
RA
C-E14H2
750
548
288
Air outlet
When
“
heating
”
operation
is
perf
or
med,
cool
air
bl
ows
and
when
“cooling
”
or
“
dehumidifying
”
operation
is
perf
or
perforperf
med,
wa
rm
air b
l
ow
s.
Drain hose
Drains
the
dehumidified
w
ater
from
the
indoor
unit
to
the
outdoor
dur
ing
“cooling
”
or
“dehumidifying
”
operation.
Piping and
Wiring
Air inlets (Rear and left sides)
Drain por
t (Bottom)
Ear
th terminal
(Lo
wer section of the side)
Air outlet
When
“
heating
”
operation
is
perf
or
med,
cool
air
bl
ow
s
and
when
“
cooling
”
or
“
dehumidifying
”
operation
is
perf
or
med, w
ar
m air b
low
s.
RA
C-E14H2
RA
C-E10H2
– 5
–
INDOOR UNIT INDICATIONS
TIMER LAMP (Orange)
This lamp lights when the timer is working.
FIL
TER LAMP (Green)
FILTER LAMP (Green)FIL
When
the
de
vice
is
operated
f
or
a
total
of
about
200
hours
,
the
FIL
TER
FILTER FIL
lamp
lights
indicates
that
it
is
time
to
clean
the
filter
.The
lamp
goes
out
when
the
“
(A
UT
O
SWING)
”
bu
tton
is
pressed
while
the
oper
ation is stopped.
OPERA
TION LAMP (Y
OPERATION LAMP (YOPERA
ello
TION LAMP (YelloTION LAMP (Y
w)
This lamp lights during operation.
The
OPERA
TION
OPERATION OPERA
LAMP
flashes
in
the
fo
llowing
cases during heating.
(1)
During preheating
For about 2-3 minutes after starting up.
(2)
During defr
osting
Defrosting
will
be
performed
about
once
an
hour
when
frost
forms
on
the
heat
exchanger
of
the
outdoor unit, for 5-10 minutes each time.
TEMPORAR
Y SWITCH
Use
this
switch
to
start
and
stop
when
the
remote
controller
does
not
work.
This temporar
y oper
ation will be at the most recent setting made
.
(The unit
will immediately go into automatic operation once po
w
er is s
witched on.)
If
the
power
stays
on
and
the
unit
is
not
operated,
power
is
slightly
consumed
in
the
control
circuit.
The
pow
er
is
sa
v
ed
by
tur
ning
off
the
power
s
witch
(or
the
circuit
breaker
when
the
po
wer
is
supplied
from the outdoor unit).
Attaching the air c
leansing and deodorizing filter
s (Accessories) to the filter frame
.
•
Attach the air cleansing and deodor
izing filters to the frame
by
gently
compress
its
both
sides
and
release
after
inser
tion
into
filter fr
ame
.
•
The
cooling
capacity
is
slightly
w
eak
ened
and
the
cooling
speed
becomes
sl
ow
er
when
the
air
cleansing
and
deodorizing
filters
are
used.
•
Air
cleansing
and
deodor
izing
filters
can
be
used
f
or
about
1
y
ear
.
When y
ou w
ant to rene
w it, please ask y
our sales agent.
PO
WER SWITCH
F
rame
CA
UTION
Tu
rn
off the circuit break
er or pull out the po
wer plug if
the unit is not be oper
ated f
or a long per
iod.
AUTO HEAT
DEHUMIDIFY COOL FAN
FAN SPEED
LOW
MED HI
SLEEPING STOP (CANCEL) START (RESERVE)
START/STOP
TIME TIMER SET TIMER SELECTOR
ON TIMER OFF TIMER
AUTO SWING
Auto Restart Control

1
- 6
-

INDOOR UNIT OUTDOOR UNIT
INDOOR UNIT INDICATIONS
– 6
–
Signal emitting window/transmission sign
P
oint this windo
w to
w
ard the indoor unit when controlling it.
The tr
ansmission sign b
links when a signal is sent.
Displa
y
This indicates the room temper
ature selected, current time
, timer status
,
function and intensity of circulation selected.
ST
AR
STARST
T/ST
OP b
utton
Press this b
utton to star
t operation.
Press it again to stop oper
ation.
AU
TO
SWING b
utton
Controls the angle of the hor
iz
ontal air deflector
.
F
AN SPEED selector
FAN SPEED selectorF
This deter
mines the f
an speed.
Ev
er
y time y
ou press this b
utton, the intensity of
circulation will change from
(A
UT
O) to
(HI) to
(MED) to
(LO
W).
(This b
utton allo
ws selecting the optimal or pref
erred f
an speed f
or each
operation mode
.)
SLEEP b
utton
Use this b
utton to set the sleep timer
.
TEMPERA
TURE b
TEMPERATURE bTEMPERA
uttons
Use these b
uttons to r
aise or lo
w
er the temper
ature setting.
(K
eep pressed, and
(Keep pressed, and (K
the v
alue will change more quic
kly
.)
kly.)kly
TIME b
utton
Use this b
utton to set and chec
k the time and date
.
RESET b
utton
Press this b
utton after the batteries are replaced or when some irregular
operation is f
ound.
FUNCTION selector
Use this b
utton to select the oper
ating mode
.
Ev
er
y time y
ou press it, the mode
will change from
(A
UT
O) to
(HEA
T) to
(HEAT) to (HEA
(DEHUMIDIFY) to
(COOL) and
to
(F
AN) cyclically
(FAN) cyclically (F
.
F
AN SPEED selector
FAN SPEED selectorF
AU
TO
SWING b
utton
TIMER contr
ol
Use these b
uttons to set the timer
.
OFF-TIMER b
utton
Select the tur
n OFF time
.
ON-TIMER b
utton
Select the tur
n ON time
.
RESER
VE b
utton
Time setting reser
v
ation.
CANCEL b
utton
Cancel time reser
v
ation.
REMOTE CONTROLLER
•
This controls the operation of the indoor unit.
The
range
of
control
is
about
7
meters
.
If
indoor
lighting
is
controlled
electronically
,
electronically, electronically
the
range
of
control ma
y be shor
control may be shorcontrol ma
ter
, in some cases
, the control signal ma
y not be receiv
ed.
This
unit
can
be
fix
ed
on
a
w
all
using
the
fixture
pro
vided.
Bef
ore
fixing
it,
mak
e
sure
the
indoor
unit
can be controlled from the remote controller
.
•
Handle the remote controller with care.
Dropping it or getting it wet ma
y compromise its signal tr
ansmission capability
.
ansmission capability.ansmission capability
•
After
ne
w
batter
ies
are
inser
ted
into
the
remote
controller
,
the
unit
will
initially
require
appro
ximately
10 seconds to respond to commands and oper
ate
.
Precautions for Use
•
Do not put the remote controller in the f
ollo
wing places
.
•
In direct sunlight
•
In the vicinity of a heater
.
•
Handle
the
remote
controller
carefully
.
carefully. carefully
Do
not
drop
it
on
the
floor
,
and
protect it from water
.
•
Once
the
outdoor
unit
stops
,
it
will
not
restar
t
f
or
about
3
min
utes
(unless
y
ou
tur
n
the
pow
er
s
witch
off
and
on
or
unplug
the
po
wer
cord
and
plug
it in again).
This is to protect the de
vice and does not indicate a f
ailure
.
•
If
y
ou
press
the
FUNCTION
selector
b
utton
dur
ing
operation,
the
de
vice
ma
y stop f
or about 3 minutes f
or protection.
AUTO HEAT
DEHUMIDIFY COOL FAN
FAN SPEED
LOW
MED HI
SLEEPING STOP (CANCEL) START (RESERVE)
START/STOP
TIME TIMER SET TIMER SELECTOR
ON TIMER OFF TIMER
AUTO SWING
– 7
–
V
ARIOUS FUNCTIONS
VARIOUS FUNCTIONSV
Auto Restart Control
•
If
there
is
a
power
f
ailure
,
operation
will
be
automatically
restar
ted
when
the
po
wer
is
resumed
with
pre
vious oper
ation mode and airflo
w direction.
(As the operation is not stopped b
y remote controller
.)
•
If
y
ou
intend
not
to
contin
ue
the
oper
ation
when
the
po
wer
is
resumed,
s
witch
off
the
po
wer
supply
.
supply.supply
When
y
ou
s
witch
on
the
circuit
break
er
,
the
operation
will
be
automatically
restar
ted
with
pre
vious
oper
ation mode and airflow direction.
Note:
1.
If y
ou do
not require A
uto Restar
t Control, please consult y
our sales agent.
2.
A
uto Restar
t Control is not a
v
ailab
le when
Timer or Sleep
Timer mode is set.
AUTOMATIC OPERATION
The
de
vice
will
automatically
deter
mine
the
mode
of
oper
ation,
HEA
T
HEAT HEA
or
COOL
depending
on
the
initial
room
temperature
.
The
selected
mode
of
operation
will
change
when
the
room
temperature
varies.
Press
the
FUNCTION
selector
so
that
the
display
indicates
the
(
AU
T
O)
mode
of
operation.
•
When
AU
TO
has
been
selected,
the
de
vice
will
automatically
deter
mine
the
mode
of
operation,
HEA
T
HEAT HEA
or
COOL
depending
on the current room temperature.
•
When
AU
TO
is
first
selected,
the
de
vice
will
deter
mine
the
current
room
temperature
and
select
the
proper
operation
mode
accordingly
.
accordingly.accordingly
•
When
the
air
conditioner
has
adjusted
the
room's
temperature
to
the
near
preset
temperature,
it
will
begin
to
monitor
operation.
If
the
room
temperature
subsequently
changes,
the
air
conditioner
will
once
again
select
the
appropriate
operation
(heating
or
cooling)
to
adjust
the
temperature
to
the
preset
temper
ature
.
The
monitor
ing
operation
range
is

3°C relative to the preset temperature.
•
If
the
mode
automatically
selected
by
the
unit
is
not
satisf
actor
y,
manually
change
the
mode
setting
(heat,
dehumidify
,
dehumidify, dehumidify
cool
or
f
an).
1
Press the
(ST
AR
(STAR (ST
T/ST
OP) b
utton.
Operation star
ts with a beep
.
Press the b
utton again to stop oper
ation.
Press
the
(F
AN
(FAN (F
SPEED)
b
utton,
AU
TO
and
LO
W
is
av
ailab
le
.
As
the
settings
are
stored
in
memor
y
in
the
remote
controller
,
yo
u
only ha
v
e to press the
(ST
AR
(STAR (ST
T/ST
OP) b
utton ne
xt time
.
Y
ou
You Y
can
raise
or
lo
w
er
the
temperature
setting
as
necessar
y
by
maxim
um of 3°
C.
Press
the
temper
ature
b
utton
and
the
temperature
setting will change
by
1°C each time
.
•
The
preset
temper
ature
and
the
actual
room
temper
ature
ma
y
v
ar
y some
what depending on conditions
.
ST
AR
STARST
T
ST
OP
- 7
-

– 8
–
Press
the
(ST
AR
(STAR(ST
T/ST
OP)
b
utton.
Heating
oper
ation
star
ts
with a beep
.
Press the b
utton again to stop operation.
ST
AR
STARST
T
ST
OP
HEATING OPERATION
•
Use the de
vice f
or heating when the outdoor temper
ature is under 21°C
.
When
it
is
too
wa
rm
(
ov
er
21°C),
the
heating
function
ma
y
not
wo
rk
in
order
to
protect
the
de
vice
.
•
In
order
to
k
eep
reliability
of
the
de
vice
,
please
use
this
de
vice
abo
v
e
-15°C
of
the
outdoor
temperature
.
Press
the
FUNCTION
selector
so
that
the
display
indicates
(HEA
T).
(HEAT).(HEA
1
Set
the
desired
F
AN
FAN F
SPEED
with
the
(
F
AN
FAN F
SPEED)
b
utton
(the displa
y indicates the setting).
(the display indicates the setting).(the displa
(
AU
TO
) :
The
f
an
speed
changes
automatically
according
to the temper
ature of the air which b
lo
ws out.
(HI)
:
Economical
as
the
room
will
become
wa
rm
quic
kly
.
kly.kly
But y
ou ma
y f
ou may fou ma
eel a chill at the beginning.
(MED)
:
Quiet.
(LO
W)
:
More quiet.
2
Set
the
desired
room
temperature
with
the
TEMPERA
TURE
TEMPERATURETEMPERA
b
uttons (the displa
y indicates the setting).
The
temper
ature
setting
and
the
actual
room
temperature
ma
y
mayma
v
ar
y some
what depending on conditions
.
3
As
the
settings
are
stored
in
memor
y
in
the
remote
controller
,
yo
u
only ha
ve
to press the
(ST
AR
(STAR (ST
T/ST
OP) b
utton ne
xt time
.
Defrosting
Defrosting will be perf
or
med about once an hour when frost f
or
ms on the heat e
xchange of the outdoor unit,
f
or 5~10 minutes each time
.
During defrosting operation, the oper
ation lamp b
links in cycle of 3 seconds on and 0.5 second off
.
The maximum time for defrosting is 20 minutes.
(If the piping length used is longer than usual, frost will lik
ely to f
or
m.)
– 9
–
DEHUMIDIFYING OPERATION
Use the de
vice f
or dehumidifying when the room temper
ature is o
v
er 16°C
.
When it is under 15°C
, the dehumidifying function will not w
or
k.
Press
the
(ST
AR
(STAR(ST
T/ST
OP)
b
utton.
ST
AR
STARST
T
ST
OP
Press
the
FUNCTION
selector
so
that
the
display
indicates
(DEHUMIDIFY).
The
F
AN
FAN F
SPEED
is
set
at
LO
W
automatically
.
automatically.automatically
The F
AN SPEED b
The FAN SPEED bThe F
utton does not w
or
k.
1
When
y
ou
w
ant
to
change
the
oper
ation
mode
,
please
use
the
FUNCTION selector
.
Set the desired temperature is a
v
Set the desired temperature is avSet the desired temperature is a
ailab
le
.
Y
ou also can use the FUNCTION selector to select this oper
You also can use the FUNCTION selector to select this operY
ation.
Dehumidifying Function
•
Dehumidifying
tak
es
place
with
a
target
temperature
which
is
slightly
low
er
than
the
room
temperature setting.
(Ho
we
v
er
, target temperature is 16°C f
or a temperature setting of 16°C
.)
If
the
room
temper
ature
becomes
lower
than
the
target
v
alue
,
operation
stops
.
If
the
room
temperature becomes higher than the target v
alue
, operation restar
ts
.
•
The
preset
room
temper
ature
ma
y
not
be
reached
depending
on
the
number
of
people
present
in
the room conditions.
1
2
3
1 2
FAN SPEED (AUTO)
- 8
-