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)

(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

After installation

※

FEBRUARY

2006

Hitachi Household Appliances (Wuhu) Co.,Ltd.

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.

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.

After completion of repairs, the initial state should be

restored.

Lead wires should be connected and laid as in the

initial state.

Modification of the unit by the user himself should

absolutely be prohibited.

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.

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.

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

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

at a new location.

10.

Any inflammable object must not be placed

about the location of installation.

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

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

conductive polyvinyl bag

A conductive polyvinyl bagA

Conductive sponge

Fig. 2 Body earth

Body earth (Elimik conductive band)

Clip for connection with

a grounding wire

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.)

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

quiet

operation

stopping

the

unning,

slight

flo

wing

noise

refr

iger

ant

the

refr

iger

ating

cycle

heard occasionally

t this noise is not abnor

mal

r the operation.

When

thunders

near

by, by

recommend

stop

the

operation

and

disconnect

the

cord

plug

from

the

wer

outlet

saf

The

room

air

conditioner

does

not

start

automatically

after

recovery

the

electric

power

failure

for

prevent

ing

fuse

ing.

Re-press

STARST

T/ST

tton

after

minutes

from

when

unit

stopped.

If the room air conditioner is stopped by adjusting thermostat, or missoperation, and re-start in a moment

there

occasion

that

the

cooling

and

heating

operation

does

not

start

for

minutes,

not

abnormal

and

this is the result of the operation of IC del

circuit.

This IC del

circuit ensures that there is no danger of

ing fuse or damaging par

en if operation is restar

ted accidentally

This

room

air

conditioner

should

not

used

the

cooling

operation

when

the

outside

temperature

below 10°C (50°F)

This

room

air

conditioner

(the

rse

cycle)

should

not

used

when

the

outside

temperature

bel

–15°C (5°F)

If the re

erse cycle is used under this condition, the outside heat e

xchanger is frosted and efficiency

lls

When

the

outside

heat

exchanger

frosted,

the

frost

melted

operating

the

hot

gas

system,

not

troub

le that at this time fan stops and the vapour ma

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

ASC092CD

YES

3.0A

G4A

YES

450NR

YES

YES(IC)

WITHOUT REFRIGERANT BECAUSE

COUPLING IS FLARE TYPE.

UNIT

PIPES (MAX. 20m)

REFRIGERANT CHARGING

VOLUME

(Refrigerant 410A)

RAC-E10H2

820g

RAS-E10H2

PWM DC35V

—

YES

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

ASC092CD

YES

3.0A

G4A

YES

450NR

YES

YES(IC)

WITHOUT REFRIGERANT BECAUSE

COUPLING IS FLARE TYPE.

UNIT

PIPES (MAX. 20m)

REFRIGERANT CHARGING

VOLUME

(Refrigerant 410A)

RAC-E10H2

820g

RAS-E10H2

PWM DC35V

—

YES

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

ensure

correct

usage

the

unit.

• P

special

attention

signs

“

arning

”

and

“

Caution

”.

The

“W

ning

”

section

contains

matters

which,

not

obser

str

ictly

ictly, ictly

cause

death

ser

ious

injur

The

“Caution”

section

contains

matters

which

result

ser

ious

consequences

not

obser

proper

ly. ly

Please

obser

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

the

figure

indicates

prohibition.

Indicates the instructions that m

ust be f

ollo

wed.

ARNING

WARNINGW

UTION

•

Do not reconstr

uct the unit.

ater leakage

, f

ault, shor

t circuit or fire ma

y occur if y

ou reconstr

uct the unit

ourself

•

Please

ask

our

sales

agent

qualified

technician

the

installation

our

unit.

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

not

place

the

ear

line

near

ater

gas

pipes

lightning-conductor

the

ear

line

telephone

Improper

installation

ear

line

may ma

cause

electr

shoc

•

sure

use

the

specified

piping

set

R410A.

Otherwise

this

may ma

result

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

, 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

•

Please

ensure

smooth

flo

ater

when

installing

the

drain

hose

ailure

ound

the

drain

path,

ater

drops

from

the

indoor

and

outdoor

units

causing

household

eff

ects

•

Mak

e sure that a single phase 230V po

wer source is used.

The

use

other

sources

cause

electr

ical

components

erheat

and lead to fire

OHIBITION

CONNECT EAR

TH LINE

OHIBITION

•

Should

abnor

mal

situation

ise

(lik

ning

smell),

please

stop

oper

ating

the

unit

and

remo

plug

from

the

soc

tur

off

the

circuit

break

Contact

our

agent.

ault,

shor

circuit

fire

occur

contin

operate

the

unit

under abnor

mal situation.

•

Please

contact

our

agent

maintenance

Improper self maintenance ma

y cause electric shoc

k and fire

•

Please contact y

our agent if y

ou need to remo

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

and reinstall the unit y

ourself improper

ly.ly

ARNING

WARNINGW

PRECAUTIONS DURING INSTALLATION

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

“OFF

”

OHIBITION

• A

• Av• A

oid an e

xtended per

iod of direct air flo

w f

or y

our health.

•

not

connect

the

pow

calbe

with

xtension

cab

not

plug

too

man

leads of the other electr

ic appliance into the soc

et where this cab

ket where this cabk

le is plugged.

addition,

wire

the

cab

with

some

allo

ances

pre

ent

the

cab

from

stretching.

Not doing so will cause an electrical shoc

k, heat gener

ation or fire

OHIBITIO

•

not

put

objects

lik

thin

rods

into

the

panel

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

er cab

, pull it, put something on it, heat it, process it, or

put it betw

een things

Breakage of the po

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

OHIBITION

– 2

–

– 3

–

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

•

Spray cans and other combustibles should not be located within a meter of the air

outlets of both indoor and outdoor units

spr

can

’s

inter

nal

pressure

can

increased

hot

air

upture

may ma

result.

“OFF

”

CAUTION

PROHIBITIO

•

The

product

shall

operated

under

the

man

acturer

specification

and

not

y other intended use

OHIBITION

DON’T

•

not

attempt

operate

the

unit

with

wet

hands

this

could

cause

atal

accident.

STRICTL

Y OBSE

STRICTLY OBSESTRICTL

PRECA

UTIONS

OHIBITION

•

When

operating

the

unit

with

ning

equipments

regular

entilate

the room to

oid o

xygen insufficiency

xygen insufficiency.xygen insufficiency

•

Do not direct the cool air coming out from the air-conditioner panel to

ace

household

heating

apparatus

this

may ma

aff

ect

the

king

apparatus such as the electric k

ettle

, o

en etc.

•

not

ash

the

unit

with

water

place

ater

container

such

vase on the indoor unit.

Electrical leakage could be present and cause electric shock.

•

Please

ensure

that

outdoor

mounting

frame

alw

stab

fir

and

without

def

ect.

not,

the

outdoor

unit

collapse

and

cause

danger

•

not

place

plants

animals

directly

under

the

air

flow

bad

the

plants

animals

•

Do not climb on the outdoor unit or put objects on it.

OHIBITION

DON’T

UCH

DON’T

•

When oper

ating the unit with the door and windows opened, (the room humidity

alw

abo

80%)

and

with

the

air

deflector

acing

ving

automati-

cally

long

per

iod

time

water

will

condense

the

air

deflector

and

drips

occasionally

occasionally. occasionally

This

will

wet

our

fur

niture

Theref

ore

not

oper

ate

under

such condition f

or a long time

•

the

amount

heat

the

room

abo

the

cooling

heating

capability

the

unit

xample:

people

entering

the

room,

using

heating

equipments

and

etc.), the preset room temper

ature cannot be achie

ed.

•

Indoor

unit

cleaning

must

perf

med

author

personnel

only

only. only

Consult

our sales agent.

Using

commercially

ailab

detergent

similar

can

damage

the

plastic

par

or clog the dr

ain pipe

, causing w

ater to drip with potential electr

ic shoc

k hazard.

•

not

touch

the

air

outlet,

bottom

surf

ace

and

alumin

fin

the

outdoor

unit.

ou ma

You maY

y get hur

•

Do not touch the refr

iger

ant pipe and connecting v

alv

Bur

ns ma

y result.

- 5

– 4

–

NAMES AND FUNCTIONS OF EACH PART

INDOOR UNIT

Air filter

pre

ent dust from coming into the indoor unit.

(Ref

er page 16)

ont panel

Indoor unit indicator

Light indicator sho

wing the operating condition.

(Ref

er page 5)

Horizontal deflector

VerV

tical deflector

(Air Outlet)

(Ref

er page 15)

Remote contr

oller

Send

out

oper

ation

signal

the

indoor

unit.

to oper

ate the whole unit.

(Ref

er page 6)

MODEL NAME AND DIMENSIONS

OUTDOOR UNIT

Drain hose

ains

the

dehumidified

ater

from

the

indoor

unit

the

outdoor

during

“

cooling

”

“dehumidifying

”

operation.

Piping and

Wiring

Air inlets (Rear and left sides)

About the outdoor unit:

•

When

“Stop”

selected

during

operation

the

indoor

unit,

the

outdoor

unit

contin

ues

tur

ning

seconds

cool

the electr

ic par

ts down.

•

heating

oper

ation,

condensate

ater

due

to defrosting will fl

not

the

ain

por

the

outdoor

unit

because

such

ater

may ma

freez

the

chilly

area.

•

When

the

outdoor

unit

hung

the

ceiling,

install

the

ush

and

ain

pipe

the

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

C-E10H2

700

505

258

C-E14H2

750

548

288

Air outlet

When

“

heating

”

operation

perf

med,

cool

air

ows

and

when

“cooling

”

“

dehumidifying

”

operation

perf

perforperf

med,

air b

Drain hose

Drains

the

dehumidified

ater

from

the

indoor

unit

the

outdoor

dur

ing

“cooling

”

“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

perf

med,

cool

air

and

when

“

cooling

”

“

dehumidifying

”

operation

perf

med, w

m air b

low

C-E14H2

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

vice

operated

total

about

200

hours

the

FIL

TER

FILTER FIL

lamp

lights

indicates

that

time

clean

the

filter

.The

lamp

goes

out

when

the

“

SWING)

”

tton

pressed

while

the

oper

ation is stopped.

OPERA

TION LAMP (Y

OPERATION LAMP (YOPERA

ello

TION LAMP (YelloTION LAMP (Y

This lamp lights during operation.

The

OPERA

TION

OPERATION OPERA

LAMP

flashes

the

llowing

cases during heating.

(1)

During preheating

For about 2-3 minutes after starting up.

(2)

During defr

osting

Defrosting

will

performed

about

once

hour

when

frost

forms

the

heat

exchanger

the

outdoor unit, for 5-10 minutes each time.

TEMPORAR

Y SWITCH

Use

this

switch

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

er is s

witched on.)

the

power

stays

and

the

unit

not

operated,

power

slightly

consumed

the

control

circuit.

The

pow

tur

ning

off

the

power

witch

(or

the

circuit

breaker

when

the

wer

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

gently

compress

its

both

sides

and

release

after

inser

tion

into

filter fr

ame

•

The

cooling

capacity

slightly

eak

ened

and

the

cooling

speed

becomes

when

the

air

cleansing

and

deodorizing

filters

are

used.

•

Air

cleansing

and

deodor

izing

filters

can

used

about

ear

When y

ou w

ant to rene

w it, please ask y

our sales agent.

WER SWITCH

rame

UTION

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

SLEEPING

STOP (CANCEL)

START (RESERVE)

START/STOP

TIME

TIMER SET

TIMER SELECTOR

ON TIMER

OFF TIMER

AUTO SWING

Auto Restart Control



- 6

INDOOR UNIT

OUTDOOR UNIT

INDOOR UNIT INDICATIONS

– 6

–

Signal emitting window/transmission sign

oint this windo

w to

ard the indoor unit when controlling it.

The tr

ansmission sign b

links when a signal is sent.

Displa

This indicates the room temper

ature selected, current time

, timer status

function and intensity of circulation selected.

STARST

T/ST

OP b

utton

Press this b

utton to star

t operation.

Press it again to stop oper

ation.

SWING b

utton

Controls the angle of the hor

ontal air deflector

AN SPEED selector

FAN SPEED selectorF

This deter

mines the f

an speed.

y time y

ou press this b

utton, the intensity of

circulation will change from

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

er the temper

ature setting.

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

y time y

ou press it, the mode

will change from

O) to

(HEA

T) to

(HEAT) to (HEA

(DEHUMIDIFY) to

(COOL) and

AN) cyclically

(FAN) cyclically (F

AN SPEED selector

FAN SPEED selectorF

SWING b

utton

TIMER contr

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

ation.

CANCEL b

utton

Cancel time reser

ation.

REMOTE CONTROLLER

•

This controls the operation of the indoor unit.

The

range

control

about

meters

indoor

lighting

controlled

electronically

electronically, electronically

the

range

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

fix

all

using

the

fixture

pro

vided.

Bef

ore

fixing

it,

mak

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

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

not

drop

the

floor

and

protect it from water

•

Once

the

outdoor

unit

stops

will

not

restar

about

min

utes

(unless

tur

the

pow

witch

off

and

unplug

the

wer

cord

and

plug

it in again).

This is to protect the de

vice and does not indicate a f

ailure

•

press

the

FUNCTION

selector

utton

dur

ing

operation,

the

vice

y stop f

or about 3 minutes f

or protection.

AUTO

HEAT

DEHUMIDIFY

COOL

FAN

FAN SPEED

LOW

MED

SLEEPING

STOP (CANCEL)

START (RESERVE)

START/STOP

TIME

TIMER SET

TIMER SELECTOR

ON TIMER

OFF TIMER

AUTO SWING

– 7

–

ARIOUS FUNCTIONS

VARIOUS FUNCTIONSV

Auto Restart Control

•

there

power

ailure

operation

will

automatically

restar

ted

when

the

wer

resumed

with

pre

vious oper

ation mode and airflo

w direction.

(As the operation is not stopped b

y remote controller

•

intend

not

contin

the

oper

ation

when

the

wer

resumed,

witch

off

the

wer

supply

supply.supply

When

witch

the

circuit

break

the

operation

will

automatically

restar

ted

with

pre

vious

oper

ation mode and airflow direction.

Note:

If y

ou do

not require A

uto Restar

t Control, please consult y

our sales agent.

uto Restar

t Control is not a

ailab

le when

Timer or Sleep

Timer mode is set.

AUTOMATIC OPERATION

The

vice

will

automatically

deter

mine

the

mode

oper

ation,

HEA

HEAT HEA

COOL

depending

the

initial

room

temperature

The

selected

mode

operation

will

change

when

the

room

temperature

varies.

Press

the

FUNCTION

selector

that

the

display

indicates

the

(

mode

operation.

•

When

has

been

selected,

the

vice

will

automatically

deter

mine

the

mode

operation,

HEA

HEAT HEA

COOL

depending

on the current room temperature.

•

When

first

selected,

the

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

the

near

preset

temperature,

will

begin

monitor

operation.

the

room

temperature

subsequently

changes,

the

air

conditioner

will

once

again

select

the

appropriate

operation

(heating

cooling)

adjust

the

temperature

the

preset

temper

ature

The

monitor

ing

operation

range



3°C relative to the preset temperature.

•

the

mode

automatically

selected

the

unit

not

satisf

actor

manually

change

the

mode

setting

(heat,

dehumidify

dehumidify, dehumidify

cool

an).

Press the

(ST

(STAR (ST

T/ST

OP) b

utton.

Operation star

ts with a beep

Press the b

utton again to stop oper

ation.

Press

the

(FAN (F

SPEED)

utton,

and

ailab

the

settings

are

stored

memor

the

remote

controller

only ha

e to press the

(ST

(STAR (ST

T/ST

OP) b

utton ne

xt time

You Y

can

raise

the

temperature

setting

necessar

maxim

um of 3°

Press

the

temper

ature

utton

and

the

temperature

setting will change

1°C each time

•

The

preset

temper

ature

and

the

actual

room

temper

ature

y some

what depending on conditions

STARST

- 7

– 8

–

Press

the

(ST

(STAR(ST

T/ST

OP)

utton.

Heating

oper

ation

star

with a beep

Press the b

utton again to stop operation.

STARST

HEATING OPERATION

•

Use the de

vice f

or heating when the outdoor temper

ature is under 21°C

When

too

(

21°C),

the

heating

function

not

order

protect

the

vice

•

order

eep

reliability

the

vice

please

use

this

vice

abo

-15°C

the

outdoor

temperature

Press

the

FUNCTION

selector

that

the

display

indicates

(HEA

T).

(HEAT).(HEA

Set

the

desired

FAN F

SPEED

with

the

(

FAN F

SPEED)

utton

(the displa

y indicates the setting).

(the display indicates the setting).(the displa

(

) :

The

speed

changes

automatically

according

to the temper

ature of the air which b

ws out.

(HI)

Economical

the

room

will

become

quic

kly

kly.kly

But y

ou ma

y f

ou may fou ma

eel a chill at the beginning.

(MED)

Quiet.

(LO

More quiet.

Set

the

desired

room

temperature

with

the

TEMPERA

TURE

TEMPERATURETEMPERA

uttons (the displa

y indicates the setting).

The

temper

ature

setting

and

the

actual

room

temperature

mayma

y some

what depending on conditions

the

settings

are

stored

memor

the

remote

controller

only ha

to press the

(ST

(STAR (ST

T/ST

OP) b

utton ne

xt time

Defrosting

Defrosting will be perf

med about once an hour when frost f

ms on the heat e

xchange of the outdoor unit,

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

m.)

– 9

–

DEHUMIDIFYING OPERATION

Use the de

vice f

or dehumidifying when the room temper

ature is o

er 16°C

When it is under 15°C

, the dehumidifying function will not w

Press

the

(ST

(STAR(ST

T/ST

OP)

utton.

STARST

Press

the

FUNCTION

selector

that

the

display

indicates

(DEHUMIDIFY).

The

FAN F

SPEED

set

automatically

automatically.automatically

The F

AN SPEED b

The FAN SPEED bThe F

utton does not w

When

ant

change

the

oper

ation

mode

please

use

the

FUNCTION selector

Set the desired temperature is a

Set the desired temperature is avSet the desired temperature is a

ailab

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

place

with

target

temperature

which

slightly

low

than

the

room

temperature setting.

(Ho

, target temperature is 16°C f

or a temperature setting of 16°C

the

room

temper

ature

becomes

lower

than

the

target

alue

operation

stops

the

room

temperature becomes higher than the target v

alue

, operation restar

•

The

preset

room

temper

ature

not

reached

depending

the

number

people

present

the room conditions.

FAN SPEED (AUTO)

- 8

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