Hitachi RAS-70YHA4 User manual

HITACHI

SPLIT TYPE AIR CONDITIONER

INDOOR

UNIT/OUTDOOR

UNIT

Instruction manual

MODEL

RAS-70YHA4 / RAC-70YHA4

RAS-80YHA4 / RAC-80YHA4

INDOOR UNIT

RAS-70YHA4

RAS-80YHA4

OUTDOOR UNIT

RAC-70YHA4

RAC-80YHA4

To obtain the best performance, please read this instruction manual completely. Page 1

-24

SAFETY PRECAUTION

• Please read the "Safety Precaution" carefully before operating the unit to ensure correct usage of the unit.

• Pay special attention to signs of "A

Warning"

and

" A Caution". The "Warning" section contains matters which,

if not observed strictly, may cause death or serious injury. The "Caution" section contains matters which may

result

serious consequences if not observed properly. Please observe all instructions strictly to ensure safety.

• The sign indicate the following meanings.

8 Make sure to connect earth line.

The sign

the figure indicates prohibition.

@ Indicates the instructions that must be followed.

• Please

keep

this manual after reading.

PRECAUTIONS DURING INSTALLATION

•

not

reconstruct

the

unit.

Water

leakage

fault,

short

circuit

fire

may

occur

you

reconstruct

the

unit

you

self.

WARNING

•

Please

ask

your

sales

agent

qualified

technician

for

the

installation

your

unit.

Water

leakage,

short

circuit

fire

may

occur

you

install

the

unit

yourself.

•

Please

use

earth

line

. e

not

place

the

eart

line

near

water

gas

pipes,

ligh

ning-conductor,

the

earth

line

telephone.

Improper

installation

earth

line

may

cause

electric

shock

re.

• A

circuit

breaker

should

installed

depending

the

mounting

site

the

unit.

Without

circuit

breaker,

the

danger

electric

shock

exists

•

not

install

near

ocation

where

there

flammable

gas.

The

outdoor

unit

may

catch

fire

flammable

gas

leaks

around

it.

CAUTION •

Please

ensure

smoot

flow

water

when

installing

the

drain

hose

•

not

install

the

indoor

unit

machine

shop

kitchen

where

vapor

from

oil

its

mist

flows

the

indoo

unit.

The

oil

will

deposit

the h

eat

exchanger,

thereby

reducing

the

indoor

untt

performance

and

may

deform

and

the

worst

case,

breake

the

ast

parts

the

indoor

unit.

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

•

Should

abnormal

situation

arises

(like

burning

smell)

please

stop

operating

the

unit

and

turn

off

circuit

breaker.

Contact

your

agent.

Fault,

short

circutt

fire

may

occur

you

continue

opera

te @

the

unit

under

abnormal

situat

on.

(jjjJ

•

Please

contact

your

agent

maintenance

Improper

self

ntenance

may

cause

electric

shock

and

fire.

•

Please

contact

your

agent

you

need

remove

and

reins

all

unit.

Electric

shock

may

occur

you

remove

and

reinstall

the

unit

yourself

improper

•

the

supply

cord

damaged

must

replaced

the

spec

cord

obtainable

autho

ized

service/parts

centers.

PRECAUTIONS DURING OPERATION

•

Avoid

extended

period

rect

air

flow

for

your

health.

•

not

insert

finger,

rod

other

objects

nto

the

air

outlet

inlet.

the

rotating

high

speed

will

cause

injury.

Before

clean

ng,

sure

stop

the

ope

ation

and

turn

the

breaker

OFF

•

not

use

any

conductor

fuse

wire,

this

could

cause

fatal

accident.

Al,

•

During

thunder

storm,

disconnect

and

turn

the

circuit

breaker.

tiiJ~

•

Spray

cans

and

other

combustibles

should

not

located

with

ina

meter

the

air

outlets

both

indoor

and

outdoor

units.

spray

can's

internal

pressure

can

increased

t air, a

rupture

may

result.

-2-

PRECAUTIONS DURING OPERATION

• The product shall

operated under the manufacturer specification and

not for any other intended use.

•

not attempt to operate the unit with wet hands, this could cause fatal

accident.

•

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

household heating apparatus as this may affect the working of apparatus

such as the electric kettle, oven etc.

• Please ensure that outdoor mounting frame is always stable, firm and

without defect. If not, the outdoor unit may collapse and cause danger.

•

not splash or direct water to the body of the unit when cleaning it as

this may cause short circuit.

•

not use any aerosol or hair sprays near the indoor unit. This chemical

can adhere

heat exchanger fin and blocked the evaporation water

flow to drain pan. The water will drop

tangential fan and cause water

splashing out from indoor unit.

• Please switch off the unit and turn off the circuit breaker during cleaning,

the high-speed fan inside the unit may cause danger.

• Turn off the circuit breaker if the unit is not to be operated for a long period.

• Do not climb on the outdoor unit or put objects

it.

•

not put water container (like vase)

the indoor unit to avoid water

dripping into the unit. Dripping water will damage the insulator inside the

unit and causes short-circuit.

•

not place plants directly under the air flow as it is bad for the plants.

• When operating the unit with the door and windows opened, (the room humidity is always above

80%) and with the air deflector facing down or moving automatically for a long period of time,

water will condense

the air deflector and drips down occasionally. This will wet your furniture.

Therefore, do not operate under such condition for a long time.

• If the amount

heat in the room is above the cooling capability

the unit (for example: more

people entering the room, using heating equipments and etc.), the preset room temperature

cannot be achieved.

• This appliance can be used by children aged from 8 years and persons with reduced physical

sensory or mental capabilities or lack

experience and knowledge if they have been given

supervision or instruction concerning use of the appliance

a safe way and understand the

hazards involved.

Children shall not play with the appliance. Cleaning and user maintenance shall not be made

by children without supervision

-3-

NAMES

AND

FUNCTIONS

EACH

PART

INDOOR

UNIT

~---------------

Pre-filter

prevent dust from coming into the indoor unit.

(Refer page 20)

Front panel

Indoor unit Indicators

Light indicator showing the operating condition.

(Refer page 5)

Horizontal deflector • Vertical deflector

~-----------

(Air Outlet)

(Refer page 15)

....

f---------------

Remote controller

00 ~00 Send out operation signal to the indoor unit. So as

'v to operate the whole unit.

(Refer page 6)

OUTDOOR

UNIT

(

MODEL

NAME

AND

DIMENSIONS

)

MODEL

RAS-70YHA4, RAS-80YHA4

RAC-70YHA4, RAC-80YHA4

Drain pipe

Condensed water drain

outside.

Connecting cord and Insulation pipe for piping

Air inlet (Back, Left side)

Air outlet

WIDTH (mm)

1100

850

-4-

A CAUTION

• When heating operation, drain or

defrosted water flows out from outdoor

unit. Don't close drain outlet portion in

chilly area so as not to freeze these.

HEIGHT (mm)

DEPTH

(mm)

300 250

800 298

INDOOR

UNIT

INDICATORS

,(?

Nano

Titanium

T•~

i,~ry

OPERATION

INDICATOR

,C'

Nano

ntanlum

TEMPORARY SWITCH

OPERATION LAMP

This lamp lights during operation.

The OPERATION LAMP flashes

the following cases

during heating.

(1) During preheating

For about

2-3

minutes after starting up.

(2) During defrosting

Defrosting will be performed about once every one

hour when frost forms on the heat exchanger

the

outdoor unit, for

5-10

minutes each time.

TIMER LAMP

This lamp lights when the timer is working.

~~:~ry O

~========

Temporary

Switch

Use this switch to start and stop when the remote controller does not work. [Use non-conductor stick

(example: toothpick)]

•

pressing the temporary switch, the operation is done

automatic operation mode.

• When the operation is done using the temporary switch after the power source is turned off and turn

on again, the operation is done in automatic mode.

-5-

NAMES

AND

FUNCTIONS

EACH

PART

REMOTE CONTROLLER

This controls the operation

the indoor unit.

The

signal range

control

about 7 meters. If inverter lamp is used, the range of control

may be shorter, in some cases, the control signal may not be received.

This unitcan befixed on a wall using the fixture provided. Beforefixing it, make surethe indoor unit

can be controlled from the remote controller.

Handle the remote controller with care.

Dropping it

getting it

wet

may compromise its signal transmission capability.

Afternewbatteriesare inserted intothe remote controller, the unitwill initially require approximately

seconds

respond

commands and operate.

Transmission Sign

The transmission sign blinks

when a signal has been send.

FUNCTION Selector

Use this button to select the

operating mode. Every time

you press it, the mode will

change from ®(AUTO)

(COOL)to¢(HEAT)

to O

(DEHUMIDIFY) and to

(FAN) cyclically. (u Page 7)

ECO Button

----

Use this button to set the ECO

mode.

(uPage

13)

RESET Button

--~

SLEEP Button

___

OFF

TIMER Button

Select the turn OFFtime.

(u Page 12)

ON TIMER Button

Select the turn ON time.

(u Page 12)

Precautions

for

Use

Signal Transmission

Do not put the remote controller in the following places.

• In direct sunlight

• In the vicinity of a heater.

POWERFUL Button

Press this button

start

powerful operation. (a Page 12)

FAN SPEED Button

Selectthe fan speed for cooling

and heating mode.

Page 11)

START/STOP Button

Press this button to start operation.

Press

again to stop operation.

AUTO SWING (Horizontal)

Button

Control the angle

the

horizontal air deflector.

(a Page

15)

TEMPERATURE Button

Room temperature setting.

Value will change quickerwhen

keep pressing.

AUTO SWING (Vertical)

Button

Control the angle

the

vertical air deflector.

a(Page

15)

Handle the remote controller carefully. Do not drop it on the floor, and

protect it from water.

Oncetheoutdoorunitstops, itwill notrestartfor about3 minutes(unless

you turn the powerswitch off and

unplug the powercord and plug

it in again).

This is

protect the device and does not indicate a failure.

Ifyou press the FUNCTION selectorbutton during operation, thedevice

may stop for about 3 minutes for protection.

-6-

VARIOUS

FUNCTIONS

• Auto Restart Control

Ifthere is a

power

failure, operation will

automaticallyrestarted

when

the

power

resumed with

previous operation

mode

and airflow direction.

(As

the operation is

not

stopped

remote controller.)

•

you intend

not

continue

the

operation

when

the

power

is resumed, switch

off

the

power

supply.

When

you switch

the

circuit breaker, the operation will

automatically restarted with previous

operation

mode

and

airflow direction.

Note: 1.

you

not

require

Auto

Restart

Control, please consult

your

sales

agent.

2. Auto

Restart

Control is

not

available

when

Timer

Sleep

Timer

mode

is set.

AUTOMATIC

OPERATION

The device will automatically determine the mode of operation, HEAT

COOL depending on the current

room temperature. The selected mode of operation will change when the room temperature varies.

However, the mode of operation will not change when indoor unit is connected to multi type outdoor unit.

Press the MODE selector button so that the display indicates the ®

(AUTO) mode of operation.

• When AUTO has been selected, the device will automatically

determine the mode of operation, HEAT or COOL depending

the current

room

temperature. However the mode of operation will

not change

when

indoor unit is connected to multi

type

outdoor

unit.

•

the mode automatically selected by the unit is not satisfactory,

manually change the mode setting (HEAT, DEHUMIDIFY, COOL

or FAN).

Set the desired

FAN

SPEED with the

(FAN

SPEED) button (the

display indicates the setting).

c:_(AUTO)

I(HIGH)

(MED)

i;;.;;J (SILENT)

(LOW)

...

,(.----~

Set the desired

room

temperature with the TEMPERATURE buttons

(the display indicates the setting).

The temperature setting and the actual

room

temperature may vary

depending

conditions.

Press the (D (START/STOP) button.

Operation starts with a beep.

Press the button again

stop operation.

•

the settings

are

stored

the memory of the remote controller, you

only have to press the

(START/STOP) button next time.

Press the

(FAN

SPEED) button

select AUTO, HIGH,

MED,

LOW

or SILENT.

-7-

HEATING

OPERATION

• Use the device for heating when the outdoor temperature is under 27°C.

When it

too warm (over 27°C), the heating function may notwork in order to protect the device.

• In order to keep reliability of the device, please use this device above -15°C of the outdoor

temperature.

HITACHI

• Defrosting

Press the FUNCTION selector so that the display indicates

~(HEAT).

Set the desired

FAN

SPEED with

the~(FAN

SPEED) button

(the display indicates the setting).

c,l::J

(AUTO) : The fan speed changes automaticallyaccording

to the temperature ofthe air which blows out.

ljl(HI) : Economical as the room will become warm

quickly.

But you mayfeel a chill

the beginning.

I (MED) : Quiet.

(LOW) : More quiet.

c;.;:i (SILENT): Silent.

Set the desired room temperature with the TEMPERATURE

buttons (the display indicates the setting).

The temperature setting and the actual room temperature may

vary somewhat depending on conditions.

Press the

(START/STOP) button. Heating operation starts

..1-~~'-'--lwith

a beep. Press the button again to stop operation.

• As the settings are stored in memory in the remote controller, you

only have to press the

(START/STOP) button next time.

Defrosting will be performed about once an hour when frost forms on the heat exchange

the outdoor unit,

for

5-10

minutes each time.

During defrosting operation, the operation lamp blinks in cycle of3 seconds on and 0.5 second off.

The maximum time for defrosting is20 minutes.

(If the piping length used is longer than usual, frost will likely to form.)

-8-

DEHUMIDIFYING

OPERATION

Use the device for dehumidifying when the room temperature is over

When it is under 15°C, the dehumidifying function will not work.

Press the FUNCTION selector so that the display indicates

0 (DEHUMIDIFY).

Press the -(FAN SPEED) button

select LOW and SILENT.

• When you want to change the operation mode, please use the

FUNCTION selector.

• Set the desired temperature is available.

•

You

also can use the FUNCTION selector to select this operation.

• Dehumidifying Function

• Dehumidifying takes place with a target temperature which is slightly lower than the room

temperature setting. (However, target temperature is 16°C for a temperature setting of 16°C.)

the room temperature becomes lower than the target value, operation stops. If the room

temperature becomes higherthan the target value, operation restarts.

• The preset room temperature may not be reached depending on the numberof people present in

the room conditions.

-9-

COOLING

OPERATION

Use the device for cooling when the outdoor temperature is

-1

Oto 46°C.

If humidity is very high (over 80%) indoors, some dew may form on the air outlet grille

the indoor

unit.

HrTACHI

Press the FUNCTION selector so that the display indicates

¢ (COOL).

Set the desired FAN SPEED with the

(FAN SPEED) button

(the display indicates the setting).

c;;!l;J

(AUTO) : The

FAN

SPEED is HI atfirst and varies to MED

automatically when the preset temperature has

been reached.

'j' (HI) : Economical asthe room will becomecool quickly.

(MED) : Quiet.

'iii' (LOW) : More quiet.

c;;..,

(SILENT): Silent.

Set the desired room temperature with the TEMPERATURE

buttons (the display indicates the setting).

The temperature setting and the actual room temperature may

vary somewhat depending on conditions.

Press the

(START/STOP) button. Cooling operation starts

with a beep. Pressthe button againtostopoperation.Thecooling

~-~

function does not start ifthe temperature setting is higher than

,,-i------lthe

current room temperature (even though the

(OPERATION)

lamp lights).

The coolingfunction will startassoonasyou setthe temperature

below the current room temperature.

•

the settings are stored in memory in the remote controller, you

only have to press the

(START/STOP) button next time.

This manual suits for next models

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