Hitachi RAC-25RPA Instruction Manual Download Page 36

– 

10

 –

Heating Capability

s

T

his

 

room

 

air

 

conditioner

 

utilizes

 

a

 

heat

 

pump

 

system

 

that

 

absorbs

e

x

terior

 

heat

 

and

 

brings

 

it

 

into

 

a

 

room

 

to

 

be

 

heated.

 

As

 

the

 

ambient

temperature

 

gets

 

lower,

 

heating

 

capability

 

will

 

also

 

lower.

  I

n

 

such

 

a

situation,

 

the

 P

A

and

 

inverter

 

work

 

to

 

increase

 

compressor

 

rpm

 

to

 

keep

the

 

unit’s

 

heating

 

capability

 

from

 

decreasing.

  I

f

 

the

 

unit’s

 

heating

performance

 

is

 

still

 

unsatisfactory,

 

other

 

heating

 

appliances

 

should

 

be

used

 

to

 

augment

 

this

 

unit’s

 

performance.

s

T

he

 

air

 

conditioner

 

is

 

designed

 

to

 

heat

 

an

 

entire

 

room

 

so

 

that

 

it

 

may

 

take

 

some

 

time

 

before

 

you

 

feel

 

warm.

 T

imer

operation

 

is

 

recommended

 

for

 

effective

 

preheating

 

ahead

 

of

 

the

 

desired

 

time.

Cooling and Dehumidifying Capabilities

s

I

f

 

the

 

heat

 

present

 

in

 

a

 

room

 

e

x

ceeds

 

the

 

unit’s

 

cooling

 

capacity

 (

for

 

e

x

ample,

 

if

 

there

 

are

 

many

 

people

 

in

 

the

 

room

or

 

other

 

heating

 

appliances

 

are

 

used

)

,

 

the

 

preset

 

room

 

temperature

 

may

 

not

 

be

 

reached.

INFORMATION

CAPABILITIES

CAUTION

D

o

 

not

 

use

 

a

 

stove

or

 

any

 

other

 

high

-

temperature

 

devices

in

 

pro

x

imity

 

to

 

the

indoor

 

unit.

s

W

hen

 

fan

 

speed,

 

room

 

temperature

 

are

 

set

 

with

 

the

 

remote

 

controller

 

before

 

starting

 

manual

 

operation

 

and

the

 

buttons

 

are

 

released,

 

the

 

indication

 

of

 

settings

 

will

 

go

 

off

 

in

 

10

 

seconds

 

and

 

only

 

the

 

operation

 

mode

 

will

be

 

displayed.

s

P

ressing

 

the

 

 

button

 

while

 

the

 

unit

 

is

 

in

 

operation

 

will

 

let

 

the

 

protective

 

circuit

 

work

 

so

 

that

 

the

 

unit

 

will

not

 

operate

 

for

 

appro

x

imately

 

3

 

minutes.

s

D

uring

 

heating

 

operation,

 

the

 

indoor

 

unit’s

 

color

 

indicator

 

lamp

 

may

 

flash

 

with

 

no

 

air

 

emitted

 

for

 

a

 

while.

s

I

f

 

you

 

feel

 

cold

 

wind

 

during

 

warming

 

operation

 

with

 

the

 

 (HI) 

fan

 

speed

 

or

 

want

 

to

 

make

 

the

 

unit

 

operation

quieter

 

after

 

the

 

room

 

is

 

heated,

 

use

 

of

   (

A

UTO) 

setting

 

is

 

recommended.

s

W

ith

 

the

 

 (SILENT) 

setting,

 

the

 

unit’s

 

cooling

 

capability

 

will

 

lower

 

slightly.

VARIOUS FUNCTIONS

s

W

hen

 

the

 

timer

 

has

 

been

 

programmed,

 

the

 

unit

 

will

 

not

 

operate

 

even

 

if

 

the

 

set

 

time

 

is

 

reached

 

unless

 

the

 

unit

receives

 

a

 

signal

 

from

 

the

 

remote

 

controller.

 C

onfirm

 

that

 

timer

 

programming

 

is

 

complete

 (

beep

and

 

the

TIMER 

lamp

 

of

 

the

 

indoor

 

unit

 

lights.

s

I

f

 

the

 

s

D

uring

 

sleep

 

timer

 

operation,

 

the

 

fan

 

speed

 

sets

 

to

 

 (SILENT) 

regardless

 

of

 

the

 

preset

 

speed.

 T

he

 

remote

controller

 

display

 

indication

 

will

 

remain

 

unchanged

 

even

 

with

 

the

 

 (SILENT) 

setting.

TIMER PROGRAMMING/SLEEP TIMER OPERATION

PROHI

B

ITION

      

button

 

is

 

pressed

 

while

 

the

 ON/OFF 

timer

 

is

 

programmed,

 

the

 

sleep

 

timer

 

takes

 

priority.

Summary of Contents for RAC-25RPA

Page 1: ...eitung aufmerksam durch um durch richtige Bedienung jahrelangen und störungsfreien Betrieb zu gewährleisten Manual de instruções Página 61 72 A fim de obter um bom funcionamento e de garantir uma utilização sem falhas durante muitos anos é favor ler este manual de instruções completamente Mode d emploi Page 25 36 Des performances optimales et un fonctionnement à long terme seront assurés en appliq...

Page 2: ...as leaks around it Piping shall be suitable supported with a maximum spacing of 1m between the supports 噝 Please ensure smooth flow of water when installing the drain hose 噝 Make sure that a single phase 220V or 230V power source is used The use of other power sources may cause electrical components to overheat and lead to fire PRECAUTIONS DURING INSTALLATION PROHIBITION CONNECT EARTH LINE PROHIBI...

Page 3: ...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 on the air deflector and drips down occasionally This will wet your furniture Therefore do not operate under such condition for a long time 噝 If the amount of heat in the room is above the cooling or heating capability of...

Page 4: ... Front panel Signal receiver OUTDOOR UNIT FOR SINGLE SPLIT MODEL Remote controller OUTDOOR UNIT for single split model H T P E D T H G I E H H T D I W L E D O M RAF 25RPA RAF 35RPA 760mm 600mm 235mm RAF 50RPA INDOOR UNIT RAC 25FPA 750mm 548mm 288mm RAC 35FPA 750mm 548mm 288mm RAC 50FPA 792mm 600mm 299mm RAC 25FPA RAC 35FPA RAC 50FPA ...

Page 5: ... operation For about 2 3 minutes after start up 2 During defrosting heating operation 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 If the piping length used is longer than usual frost will likely to form TEMPORARY SWITCH Top left and right corners TEMPORARY SWITCH TEMPORARY SWITCH If the remote controller does...

Page 6: ...e same time as other heating appliances 3 Using the timer is recommended before going to sleep or going out 4 The following must never be used for cleaning the indoor and outdoor units s Benzine thinner and scrub can damage plastic surfaces or coating s Hot water above 40 C can shrink the filter and deform plastic parts 5 Do not block the air intake and air outlet s Do not block the air outlets an...

Page 7: ...t The batteries will last for approximately 1 year However if the remote controller display begins to fade and degradation of reception performance occurs within a year replace both batteries with new size AAA LR03 alkaline The attached batteries are provided for the initial use of the system The usable period of the batteries may be short depending on the manufactured date of the air conditioner ...

Page 8: ...ng the batteries 1 Press RESET button 2 Direct remote control towards indoor unit and press INFO button 3 The calendar and clock from indoor unit will be transmitted Calendar and clock will not be transmitted from indoor unit when the following occurs When there is a power failure When breaker is OFF by user unit is not in STANDBY MODE NOTE Note on setting the calendar and clock If the calendar an...

Page 9: ... use When pressing any button the LCD will turn on The LCD will not turn off during TIMER setting Signal Transmitting Receiving Window Point this window towards the indoor unit when controlling it Sensor A temperature sensor inside the remote controller senses ambient temperature around the remote controller Display ROOM TEMPERATURE setting Buttons Press these buttons to set the room temperature P...

Page 10: ...e device may stop for about 3 minutes for protection POWERFUL Button Use this button to set the POWERFUL mode INFORMATION Button ONE TOUCH CLEAN Button ON OFF TIMER setting Buttons MODE selector Button Use this button to select the operating mode Every time you press this button the mode will change from AUTO HEAT DEHUMIDIFY COOL and FAN cyclically SILENT Button Use this button to set the SILENT m...

Page 11: ...l is not available when Timer or Sleep Timer mode is set 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 on the current room temperature However the mode of operation will not change when indoor unit is connected to multi type outdoor unit If the ...

Page 12: ...ting temperature is large fan starts to run at HI speed After room temperature reaches the preset temperature fan speed will be changed to lower speed to obtain optimum room temperature condition for natural healthy heating START STOP Defrosting Defrosting will be performed about once an hour when frost forms on the heat exchange of the outdoor unit for 5 10 minutes each time During defrosting ope...

Page 13: ...oom conditions Set the desired room temperature with the ROOM TEMPERATURE setting buttons the display indicates the setting The range of 20 26 C is recommended as the room temperature for dehumidifying Press the START STOP button Dehumidifying operation starts with a beep Press the button again to stop operation As the settings are stored in the memory of the remote controller you START STOP butto...

Page 14: ... with a beep Press the button again to stop operation The cooling function does not start if the temperature setting is higher than the current room temperature even though the OPERATION lamp lights The cooling function will start as soon as user set the temperature below the current room temperature As the settings are stored in the memory of the remote controller you only have to press the START...

Page 15: ...r START STOP 1 2 Press the MODE selector so that the display indicates FAN Press the START STOP button Fan operation starts with a beep Press the button again to stop operation Set the desired FAN SPEED with the FAN SPEED button the display indicates the setting AUTO HIGH MED LOW SILENT ...

Page 16: ...recommended maximum and minimum operating temperatures of the hot and cold sides should be as below AUTO SWING OPERATION To start Vertical Auto Swing To cancel Vertical Auto Swing NOTE During cooling and dehumidifying operation do not keep the deflectors swinging or in the lower position in the case of vertical auto swing for a long time It may cause dew condensation on the deflectors Press AUTO S...

Page 17: ...WERFUL operation is cancelled During POWERFUL operation capacity of the air conditioner will not increase if the air conditioner is already running at maximum capacity just before defrost operation when the air conditioner is running in HEATING operation After auto restart POWERFUL operation is cancelled and previous operation shall start Press POWERFUL button during operation is displayed on the ...

Page 18: ...OP button Or Press SILENT button again or FAN SPEED button Fan speed will return to previous fan speed before SILENT operation starts SILENT operation stops disappears from the LCD 1 NOTE When POWERFUL operation is selected SILENT operation is cancelled Fan speed will return to previous fan speed before SILENT operation After auto restart SILENT operation is cancelled Fan speed will return to prev...

Page 19: ...on the Press START STOP button Or Press ECO button again disappears from the LCD NOTE ECO function will not be effective when power consumption is low By pressing POWERFUL button ECO operation is cancelled After auto restart ECO operation is cancelled and previous operation mode shall start For multi model connections energy saving operation shall only start by changing set temperature higher conn...

Page 20: ...g Leave Home button implementation of Weekly Timer or One Timer only Timer is cancelled In case of power supply shut down after autorestart all setting for number of days operation will be reset and unit shall be in continuous operation For multi connections when each room is running in different operation mode such as FAN only COOLING DEHUMIDIFYING or AUTO mode Leave Home operation cannot operate...

Page 21: ...CD Press START STOP button Or Press CLEAN button again 1 NOTE When CLEAN operation finish unit will switch OFF automatically For multi connections when pressing CLEAN button operation is limited to FAN operation For multi connections when one room operates CLEAN operation first other rooms can operate COOLING DEHUMIDIFYING or FAN operation However when other rooms need to operate HEATING operation...

Page 22: ...cate the sequence of switching operations 1 Press OFF TIMER button so that and blink on the display 2 Set the turn off time with TIME button After setting direct the remote controller towards the indoor and press SEND button 3 Press ON TIMER button so that and set turn off time light up The and blink 4 Set the turn on time with TIME button 5 After setting direct the remote controller towards the i...

Page 23: ...d emitted from indoor unit and the TIMER lamp on the indoor unit turns off SLEEP TIMER operation is cancelled 1 1 H 2 H 3 H 7 H SLEEP TIMER off will change as below continue to operate for the designated number of hours and then turn off the remote controller indicates the turn off time ECO SLEEP TIMER OPERATION By pressing SLEEP button during AUTO HEATING DEHUMIDIFYING COOLING or FAN operation g ...

Page 24: ...o energy saving without losing comfort The level of energy consumption depends on outside temperature room temperature set temperature or air conditioner type Cooling operation diagram representation for illustrative purpose only In this case air conditioner will turn off in 2 hours at 1 38 and it will be turned on at 6 00 the next morning NOTE Heating operation diagram representation for illustra...

Page 25: ...to select a program number The number changes from 1 2 3 4 5 6 1 2 If program number has been set follow above in order to make changes 1 2 Step 1 Set the reservation schedule to the remote controller Send the registered reservation to indoor unit and then operate Step 2 Select Mode A or Mode B and activate or deactivate WEEKLY TIMER Step 3 Copy and cancel the reservation schedule Step 1 Set reser...

Page 26: ...ction has been completed The reservation contents will appear on the remote controller display If TIMER lamp on the indoor unit does not light up press SEND button while directing the remote controller towards the indoor unit for about 3 seconds CAUTION Do not press CANCEL button during reservation setting because this will result in all reservation contents to be lost The reservation contents wil...

Page 27: ...ler towards the indoor unit and press CANCEL button Beep sound will be emitted from indoor unit and TIMER lamp will be OFF Reservation indication on remote display will also disappear This indicates that non active WEEKLY TIMER has been confirmed To activate back the setting of WEEKLY TIMER repeat the steps for How to select Mode A or Mode B of WEEKLY TIMER setting NOTE When setting ONCE TIMER ope...

Page 28: ...Y PASTE button one more time to paste only blinks on the display 7 To continue copying to other days press or or or Then start from step 3 8 After copy and paste completed press SEND button while directing the remote controller towards the indoor unit for about 3 seconds Timer lamp on the indoor unit will blink rapidly After beep sound emitted from indoor unit TIMER lamp will light up Please ensur...

Page 29: ...o edit 4 Press to select program number Selected program number will blink 5 Press DELETE button Reservation of selected program number is deleted 6 After deleting press SEND button while directing the remote controller towards the indoor unit for about 3 seconds Timer lamp on the indoor unit will blink rapidly After beep sound emitted from indoor unit TIMER lamp will light up Please ensure that t...

Page 30: ...lamp on the indoor unit will blink rapidly After beep sound emitted from indoor unit TIMER lamp will light up Please ensure that the TIMER lamp lights up Reservation will not change if SEND button is not pressed 1 1 2 NOTE If all reservations in the remote controller were deleted and pressed SEND button no signal will be transmitted to indoor unit TIMER lamp will remain off and no changes will be ...

Page 31: ...n Direct the remote controller towards the receiver of indoor unit within 2 meters in front of indoor unit and press INFO button Wait for 2 seconds for signal transmission INFO button repeatedly The display will show as below this month power consumption amount for heating last month power consumption for heating this month power consumption amount for cooling last month power consumption amount f...

Page 32: ... remain This indicates that COOLING and DEHUMIDIFYING mode operation is locked MODE button or will be displayed Method to unlock COOLING and DEHUMIDIFYING modes including FAN operations Press ECO and SILENT buttons simultaneously for about 5 seconds when the remote controller is OFF All operation mode symbols will appear on the display for about 10 seconds After that operation mode symbol before c...

Page 33: ...ilters 4 CAUTION s Do not wash with hot water at more than 40 C The filter may shrink s When washing it shake off moisture completely and dry it in the shade do not expose it directly to the sun The filter may shrink And also use a soft sponge to wash Using a scrubber or brush cause the metal film on the surface to come off s Don t operate the unit without filter Fault may occur if you continue Cl...

Page 34: ...t panel 3 CLEANING OF FRONT PANEL The front panel can be washed in water It can be kept clean at all times s Front panel can be removed and washed in water Gently clean the front panel using a soft sponge s When the air conditioner is to be cleaned without removing the front panel clean both the body and remote controller with a dry soft cloth s Wipe off water completely If water remains on the di...

Page 35: ...ters remove the air filters and attach them onto the hooks of the front cover frame s The cooling capacity is slightly weakened and the cooling speed becomes slower when the air cleansing filters are used So set the fan speed to HIGH when using it in this condition s The air cleansing filters can be used for 2 years Air cleansing filters H S I L G N E ...

Page 36: ...emote controller before starting manual operation and the buttons are released the indication of settings will go off in 10 seconds and only the operation mode will be displayed s Pressing the button while the unit is in operation will let the protective circuit work so that the unit will not operate for approximately 3 minutes s During heating operation the indoor unit s color indicator lamp may ...

Page 37: ...of operation mode different from other indoor units When it does not operate When it does not cool well When it does not heat well The following phenomena do not indicate unit failure Operation start The unit is preparing to blow warm air Please wait In operation The outdoor unit is defrosting Please wait Hissing or fizzy sounds Refrigerant flow noise in the pipe or valve sound generated when flow...

Page 38: ...stable s Foreign matter or water accidentally enters the unit interior s The power cord gets excessively hot or its insulation is torn or stripped s TIMER lamp on the indoor unit display blinks As the nature of the failure can be identified by the blinking cycle check the blinking cycle before turning off the circuit breaker s Please contact your sales agent immediately if the air conditioner stil...

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