Hitachi WINDOW/WALL TYPE ROOM AIR CONDITIONER User manual

Before using your air conditioner, please read
this manual carefully and keep it for future reference.
WINDOW/WALL TYPE
ROOM AIR CONDITIONER
-
Before using your air conditioner, please read
this manual carefully and keep it for future reference.
WINDOW/WALL TYPE
ROOM AIR CONDITIONER
-
Before using your air conditioner, please read
this manual carefully and keep it for future reference.
WINDOW/WALL TYPE
ROOM AIR CONDITIONER
-
Before using your air conditioner, please read
this manual carefully and keep it for future reference.
WINDOW/WALL TYPE
ROOM AIR CONDITIONER
-
Before using your air conditioner, please read
this manual carefully and keep it for future reference.
WINDOW/WALL TYPE
ROOM AIR CONDITIONER
-
Before using your air conditioner, please read
this manual carefully and keep it for future reference.
WINDOW/WALL TYPE
ROOM AIR CONDITIONER
-
Before using your air conditioner, please read
this manual carefully and keep it for future reference.
WINDOW/WALL TYPE
ROOM AIR CONDITIONER
-
Before using your air conditioner, please read
this manual carefully and keep it for future reference.
WINDOW/WALL TYPE
ROOM AIR CONDITIONER
-
Before using your air conditioner, please read
this manual carefully and keep it for future reference.
WINDOW/WALL TYPE
ROOM AIR CONDITIONER
-
Before using your air conditioner, please read
this manual carefully and keep it for future reference.
WINDOW/WALL TYPE
ROOM AIR CONDITIONER
-
Before using your air conditioner, please read
this manual carefully and keep it for future reference.
WINDOW/WALL TYPE
ROOM AIR CONDITIONER
-
Before using your air conditioner, please read
this manual carefully and keep it for future reference.
WINDOW/WALL TYPE
ROOM AIR CONDITIONER
-
Before using your air conditioner, please read
this manual carefully and keep it for future reference.
WINDOW/WALL TYPE
ROOM AIR CONDITIONER
-
OC
SWING
TIMER
SWING
TEMP
FAN MODE
AUTO
POWER
HEAT
COOL
FAN
DRY
SLEEP
HIGH
MED LOW
Cooling & Heating type
Prior to installation this air-conditioning unit
must be submitted for approval by the utility
service which provides electricity.

CONTENTS
1. SAFETY PRECAUTIONS..................................................................2
2. UNIT PARTS IDENTIFICATION.........................................................5
3. OPERATING INSTRUCTIONS ..........................................................6
4. INSTALLATION INSTRUCTIONS......................................................12
5. TROUBLESHOOTING ......................................................................15
6. SPECIFICATIONS .............................................................................16
Inside you will find many helpful hints on how to use and maintain your air conditioner
properly. Just a little preventive care on your part can save you a great deal of time
and money over the life of your air conditioner. You'll find many answers to common
problems in the chart of troubleshooting tips. If you review our chart of Troubleshooting
Tips first, you may not need to call for service at all.
Contact the authorised service technician for repair or maintenance of this unit.
Contact the installer for installation of this unit.
The air conditioner is not intended for use by young children or infirm persons without
supervision.
Young children should be supervised to ensure that they do not play with the air
conditioner.
If the power cord is to be replaced, replacement work shall be performed by authorised
personnel only.
Installation work must be performed in accordance with the national wiring standards
by authorised personnel only.
!CAUTION
Read This Manual
1

To prevent injury to the user or other people and property damage, the following instructions
must be followed.
Incorrect operation due to ignoring of instructions may cause harm or damage. The seriousness
is classified by the following indications.
2
Safety Precautions
This symbol indicates the possibility of death or serious injury.
Meanings of symbols used in this manual are as shown below.
!
!
WARNING
Always do this.
Never do this.
!
CAUTION
This symbol indicates the possibility of injury or damage to property.
Plug in power plug
properly.
Do not modify power cord
length or share the outlet
with other appliances.
Always ensure effective
earthing.
Unplug the unit if strange
sounds, smell, or smoke
comes from it.
Keep firearms away.
Ventilate room before operating air
conditioner if there is a gas leakage from
another appliance.
Otherwise, it may cause electric
shock or fire due to excess heat
generation.
It may cause electric shock or
fire due to heat generation.
Incorrect earthing may cause
electric shock.
It may cause fire and electric
shock.
It may cause fire.
It may cause explosion, fire and, burns.
It may cause electric shock or fire
due to heat generation.
It may cause electric shock.
It may cause failure of machine
or electric shock.
It may cause fire and electric
shock.
It may cause fire and electric
shock.
It may cause electric shock or fire.
If the power cord is damaged, it
must be replaced by the manufac-
turer or an authorised service
centre or a similarly qualified per-
son in order to avoid a hazard.
This could damage your health.
Incorrect installation may cause
fire and electric shock.
It may cause electric shock.
It may cause an explosion or fire.
It may cause failure and electric shock.
Do not operate or stop the
unit by inserting or pulling
out the power plug.
Do not operate with wet
hands or in damp
environment.
Do not allow water to run
into electric parts.
Do not use the socket if it is
loose or damaged.
Do not use the power cord
close to heating appliances.
Do not damage or use an
unspecified power cord.
Do not direct airflow at
room occupants only.
Always install circuit
breaker and a dedicated
power circuit.
Do not open the unit
during operation.
Do not use the power cord near
flammable gas or combustibles, such
as gasoline, benzene, thinner, etc.
Do not disassemble or modify unit.
!!
!!
!!
!!
!!
!!
WARNING
!

!
CAUTION
When the air filter is to be
removed, do not touch the
metal parts of the unit.
It may cause an injury.
Do not clean unit when
power is on as it may cause
fire and electric shock, it may
cause an injury.
Operation with windows
opened may cause wetting
of indoor and soaking of
household furniture.
When the unit is to be
cleaned, switch off, and turn
off the circuit breaker.
Stop operation and close
the window in storm or
hurricane.
Use caution when unpacking and
installing. Sharp edges could cause injury.
Do not clean the air
conditioner with water.
Water may enter the unit and
degrade the insulation. It may
cause an electric shock.
This could injure the pet or
plant.
It may cause electric shock
and damage.
Do not put a pet or house
plant where it will be
exposed to direct air flow.
Hold the plug by the head
of the power plug when
taking it out.
Ventilate the room well when
used together with a stove,
etc.
An oxygen shortage may occur.
Do not use this air conditioner to
preserve precision devices, food,
pets, plants, and art objects.
It may cause deterioration of
quality, etc.
It may cause failure of product
or fire.
Do not use for special
purposes.
Turn off the main power
switch when not using the
unit for a long time.
If water enters the unit, turn the unit off at the power
outlet and switch off the circuit breaker. Isolate
supply by taking the power-plug out and contact a
qualified service technician.
3
!!
!!
!!
!!
!!
!!
!!
It may cause failure of
appliance or accident.
Appearance may be
deteriorated due to change
of product color or
scratching of its surface.
Do not place obstacles
around air-inlets or inside
of air-outlet.
Do not use strong deter-
gent such as wax or
thinner but use a soft cloth.
If bracket is damaged, there
is concern of damage due to
falling of unit.
There is danger of fire or
electric shock.
Ensure that the installation bracket of
the outdoor appliance is not damaged
due to prolonged exposure.
Do not place heavy object on the
power cord and ensure that the cord
is not compressed.
Operation without filters may
cause failure.
It contains contaminants and
could make you sick.
Always insert the filters
securely. Clean filter once
every two weeks.
Do not drink water drained
from air conditioner.
!!
!!
!!

Safety
Precautions Prior to Operation
Preparing for operation
Usage
Cleaning and maintenance
ServiceService
Operating Temperature
4
1. Contact an installation specialist for installation.
2. Plug in the power plug properly.
3. Do not use a damaged or non-standard power cord.
4. Do not share the same outlet with other appliances.
5. Do not use an extension cord.
6. Do not start/stop operation by plugging/unplugging the power cord.
1. Exposure to direct airflow for an extended period of time could be hazardous to your
health. Do not expose occupants, pets, or plants to direct airflow for extended
periods of time.
2. Due to the possibility of oxygen deficiency, ventilate the room when used together
with stoves or other heating devices.
3. Do not use this air conditioner for non-specified special purposes (e.g. Preserving
precision devices, food, pets, plants, and art objects). Usage in such a manner could
harm such property.
1. Do not touch the metal parts of the unit when removing the filter. Injuries can occur
when handling sharp metal edges.
2. Do not use water to clean inside the air conditioner. Exposure to water can destroy
the insulation, leading to possible electric shock.
3. When cleaning the unit, first make sure that the power and circuit breaker are turned
off.
For repair and maintenance, contact your authorised service dealer.
COOLING MODE
INDOOR OUTDOOR INDOOR OUTDOOR
HEATING MODE
MAX. MIN. MAX. MIN.
OO
32 C 21 C OO 27 C 0 C
OO
43 C 21 C OO 24 C -5 C
MAX. MIN. MAX. MIN.
Note: Performance may be reduced outside of these operating temperatures.

1. Power cord conductors are distinguished according to color as follows (see Fig.1)
2. For your safety and protection, this unit is earthed through the power cord (see Fig.2)
Please contact the manufacturer or its service agent or a similar qualified person if you
want to replace it.
3. Make sure that the unit is correctly earthed.
The wall outlet should be provided with reliable earth wire.
4. The unit should be provided with an individual circuit and the circuit breaker/fuse rating
should be the same as that of the power cord and wall outlet.
1. Front panel
2. Air filter
3. Frame
4. Cabinet
5. Air inlet grille (outdoor side)
6. Air outlet grille
7. Electronic control keypad
8. Power supply cord and plug
9. Remote control
5
UNIT PARTS IDENTIFICATION
Wall outlet
POWER
CORD
A
E
N
E-Earth wire, yellow/green
N-Neutral wire, blue
A-Active wire, brown
Fig.1 Fig.2

OPERATING INSTRUCTIONS
Controls
Vent Control
OC
SWING
TIMER
SWING
TEMP
FAN MODE
AUTO
POWER
HEAT
COOL
FAN
DRY
SLEEP
HIGH
MED LOW
Reverse Cycle Models
OC
TIMER
TEMP
FAN MODE
POWER
COOL
FAN
DRY
SLEEP
HIGH
MED LOW
OC
OC
TIMER
TIMER
SWING
TEMP
TEMP
FAN
FAN
MODE
MODE
AUTO
POWER
POWER
HEAT
COOL
COOL
FAN
FAN
DRY
DRY
SLEEP
SLEEP
HIGH
HIGH
MED
MED
LOW
LOW
Cooling Only Models
The vent control is located above the control knobs. The operation method is different on
different models (see the following figures).
For maximum cooling efficiency, CLOSE the vent. This will allow internal air circulation.
OPEN the vent to discharge stale air.
The electronic control keypad will look like one of the following:
CLOSE VENT OPEN
To open the vent, pull the lever toward you
To close it, push it in.
To open the vent, set the lever to the right position
To close it, set the lever in the left position.
CLOSE OPEN
6
SWING
( 9,000BTU/h Models) ( 9,000BTU/h Models)

7
POWER:
Press the POWER keypad to turn the unit on/off.
(The TIMER keypad controls the auto start/stop feature of the unit.)
OPERATING INSTRUCTIONS
MODE:
Press the "MODE" keypad to select the appropriate operating mode. For the Cooling &
Heating models, the mode selection will alternate between AUTO, HEATING, COOLING,
FAN and DRY. For the Cooling only models, select the operating mode from COOLING,
FAN and DRY. The green indicator light beside the "MODE" option will illuminate, identifying
the mode selected.
When using the DRY and AUTO mode, you cannot select a fan speed. The fan motor
operates on LOW speed in DRY mode and on MED speed in AUTO mode.
TEMPERATURE SETTINGS UP:
Press the keypad to increase the set (operating) temperature of the unit.
Each time the keypad is pressed the temperature increases as follows:
OO
1 C (Celsius Scale) Maximum Setting 31 C
TEMPERATURE SETTINGS DOWN:
Press the keypad to decrease the set (operating) temperature of the unit.
Each time the keypad is pressed the temperature decreases as follows:
OO
1 C (Celsius Scale) Minimum Setting 16 C
FAN:
Press this keypad to activate the appropriate fan speed setting. Each depression of the
keypad will alternate through LOW, MED, HIGH fan speed options. The green indicator
light beside the FAN speed option will illuminate, identifying the fan speed selected.
SWING:
Press the "SWING" keypad ( 9000Btu/h models only) to activate the automatic air swing
(oscillation) feature. The green indicator light adjacent to the "SWING" keypad will
illuminate, identifying to the selected mode is operational. The vertical louvers will oscillate
back and forth (side to side) automatically sweeping air alternately for comfortable
cooling/heating. To stop the air swing feature, press the "SWING" keypad again, the green
indicator light adjacent to the keypad will go off.
Press the "SWING" keypad for 2 seconds will activate the SLEEP mode which can reduce
noise creating a comfortable sleeping environment.
When the SLEEP mode is activated, the green indicator light beside the "SLEEP" function
will illuminate.
TIMER:
Press the "TIMER" keypad to activate the "auto start/auto stop" timer function.
Auto start/stop programs can be set from 0~12 hours. Each depression of the "TIMER"
keypad will increase the selected time in 1 hour increments.

8
DRY:
This mode is used to decrease the humidity in the room.
COOLING:
OO
The temperature setting are adjustable between 16 C to 31 C . Cooling begins auto-
O
matically when the room temperature is 1 C above the set point, and stops when the room
O
temperature is 1 C below the set point. The fan will not stop running.
HEAT:
OO
The temperature settings are adjustable between 16 C to 31 C in heating mode.
O
The default temperature setting is 24 C in heating mode and the fan speed is optional.
Notes: 1. When changing the temperature setting, the fan motor operates at LOW speed for 3 minutes first for
compressor protection feature before heating begins.
2. When heating stops, there may be a slight delay of 30 seconds for the fan motor to stop.
O
3. If the condenser temperature is below 35 C, the fan will run in LOW speed despite the FAN setting.
O
If the condenser temperature is above 38 C, the fan will run at the FAN setting.
4. If the compressor is shut down by a malfunction, the fan will immediately shut down with the compressor.
AUTO:
The fan motor remains on MED speed in AUTO mode. The unit will select the appropriate
operating mode from FAN, COOL or HEAT based upon the temperature difference
O
between the actual and desired room temperature. If the actual room temperature is 2 C
above the set point, the unit operates in cooling mode. When the actual room temperature
OO
is not 2 C or higher above the set point and not 1 C or lower below the set point, the unit
O
will select the FAN mode. When the actual room temperature is 2 C below the set point,
the unit will operate in HEAT mode.
Note: If activating the SLEEP mode when the unit is operating on AUTO mode, the fan motor will changed into
LOW speed mode immediately.
SLEEP:
Press and hold the "SWING" keypad for 2 seconds or use the remote control to activate
the "SLEEP" feature ( 9000Btu/h models only) . Press and hold the "SWING" keypad
or use the remote control again for 2 seconds to deactivate the "SLEEP" feature. For
units ( 9000Btu/h models) without "SWING" feature, use the remote control to activate
the "SLEEP" feature. In the Cooling mode, the cooling temperature set point will increase
O
1 C per hour after the "SLEEP" mode is selected. Two hours later, the set point will
continue at this temperature and the fan motor will remain on LOW speed. In the Heating
O
mode, the heating temperature set point will decrease 1 C per hour after the "SLEEP"
mode is selected. Two hours later, the set point will continue at this temperature and
the fan motor will remain on LOW speed. Using the "SLEEP" mode will reduce noise
creating a comfortable sleeping environment.
Note: When activating the SLEEP mode in AUTO mode, the set temperature will not change over time.

SLEEP SLEEP
9
( 9000Btu/h Models) ( 9000Btu/h Models)
SLEEP:
Activates the "AUTO" (if applicable),
OOL", "DRY" function.
"HEAT" (if
applicable), "C "FAN"or
Activates the auto START or auto STOP
program from 0-12 hours (1 hour increments).
""""
Activates the SLEEP mode.""
Activates the automatic air SWING (vertical)
louver oscillation) feature.
""
Activates the FAN speed settings (HIGH, MED,
LOW).
""
EI=CLEAN AIR FILTER:
A message prompt EI will automatically appear in
the LED window indicating when it is time to clean
the air filter. The program is a (built-in) time
device that operates based on total (air conditioner)
running time. It is very important to keep the air filter
clean at all times in order to maximize cooling
efficiency (See Cleaning Air Filter). The air filter
must be cleaned when the EI message from the
LED display, the air conditioner must be switched
off and disconnected (unplugged) from the power
supply and re-connected.
""
"EI"
""
This action automatically
resets the "EI"program internal time device.
In the event of a power failure, the EI program is
automatically re-set, therefore we suggest you
remove and clean the filter before re-starting the
unit after any power failure.
""
NOTE:
Indicates frosting protection (Turn off the unit and
restart it to return to normal operation).
Indicates the requirement of a filter check after 720
hours of fan operation. Turn off the unit,
disconnect/unplug from the power supply. Clean the
filter, then restore the power, the unit will return to
normal operation.
Failure Indicator Display:
Indicates a malfunction of the indoor room
temperature sensor
Indicates a malfunction of the evaporator
temperature sensor
Indicates a malfunction of the outdoor condenser
temperature sensor
Remote Control functions:
The hand held remote control unit allows you to control
all operational aspects of your Air Conditioner, from the
convenience of your favorite armchair. Here are some
things you should know about operation your Air
Conditioner with the hand held remote control.
TEMP:
Increases / Decreases operating TEMPERATURE
only.
""
POWER:
Turns the power to the main unit only."on/off "
MODE:
TIMER:
SWING:
FAN:
Batteries:
To operate the hand held remote control, you will
require two AAA 1.5Volt batteries (included).
NOTE: Batteries should be replaced when:
a) No signal (beep) is heard from the main unit when
initiating program commandsfrom the remote
control to the main unit.
b) The main unit doesnot respond tothe remote
control program commands.
""
Note: When one of the above malfunctions occurs,
turn off the unit, and check for any obstructions.
Restart the unit, if the malfunction is still
present, turn off the unit and unplug the power
cord. Contact the manufacturer or its service
agents or a similar qualified person for service.
Battery Replacement:
1) Slide the lower (battery) cover down (Located on
rear of remote control unit).
2) Insert two "AAA"Batteries inside the battery
chamber (as depicted inside the battery chamber).
3) Re-install lower battery cover.
4) If the remote control is not being used for extended
time periods, (vacation, off season) the batteries
should be removedfrom the remote control unit.