Read “Safety Precautions” (P.E-8 - E-12)
to ensure correct use.
EP-NZG70J
Model
Hitachi Air Purifier
Instruction Manual
Thank you for purchasing a Hitachi air purifier.
This air purifier is for household use only.
Do not use it for any other purpose besides purifying air.
Please read this instruction manual carefully before
using this product to ensure the unit is operated
correctly.
For future reference, keep this manual in an easily
accessible place.
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E-2
Features
1. Wide suction and speedy dust collection in just 9 minutes for a 13m2 room.
Standard applicable fl oor space - 53m
2
2. With the Allergen-free HEPA Filter, fi ne dust particles are thoroughly collected.
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E-3
Contents
O
perating Air Purifi er
Before Us
e
C
leaning and Maintenanc
e
Features ············································
Name of Each Component / Accessories
····
Operating the Touch Operation Panel
····
Safety Precautions ··························
Cautions on Use ······························
Air Cleaner Deodorizing Performance
···
Preparations for Operation ·············
Setting Filter in Unit
····························
Installation ········································
E-2
E-4
E-6
E-8
E-13
E-14
E-14
E-16
Operation ··········································
Starting Operation ····································
Switching Airfl ow Rate ······························
Useful Features ································
Operating in Option ···································
Eco Saving Operation ·······························
PM2.5 Sensor ···········································
Stopping Operation Using Off-timer ··········
Setting the Lock ········································
Memory Function / Sensors /
Auto Detection ·································
Memory Function ······································
Air Sensor ·················································
Odor Sensor ·············································
Dust Sensor ··············································
Auto Detection ··········································
Adjusting Sensory Sensitivity Setting ·······
E-17
E-17
E-17
E-18
E-18
E-19
E-19
E-19
E-20
E-21
E-21
E-21
E-22
E-22
E-21
E-21
Cleaning ···········································
Pre-fi lter, Filter ··········································
Purifi er ······················································
Dust Sensor ··············································
Replacing the Filter ·························
Replacement Interval ································
Handling the Filter ·····································
How to Replace the Filter ·························
Troubleshooting Guide ···················
Replacement Parts ··························
Specifi cations ··································
E-23
E-23
E-24
E-24
E-25
E-25
E-25
E-26
E-27
E-29
E-29
Before Use Operating Air Purifi er Cleaning and Maintenance
E-13
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E-4
Name of Each Component / Accessories
Names of Each Component
CAUTION
Do not subject the glass panel
(made of tempered glass) to impact
Although tempered glass is
stronger and safer than normal
glass, it can break when subject
to strong impact or force.
In case of scratches or breakage,
stop using and immediately
request repairs.
Refrain from touching the broken
glass.
Power plug
Power cord
Handle
Air inlet
CAUTION
Do not hold the flaps when
moving the unit.
Doing so may cause unexpected
injury when the unit is damaged
and overturned or dropped.
Air outlet
(stainless steel net)
Glass panel
Power button
Purifier
Touch Operation
Panel (P.E-6, E-7)
Flap
Caster
To prevent falls, the movement is
only in sideways direction. (Located
at the base of the unit)
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(P.E-) Numbers are pages containing the main description each parts.
Pre-filter
(x1)
Accessories
Filter
CAUTION
Filter (x1)
Housed inside the purifier.
The filter must be removed from the plastic packaging before
operating the unit.
The vibration during transporting the unit might cause deodorizing agent granules
to fall out from the filter.
When removing the plastic cover of the filter and attaching the filter to the unit,
make sure that your hands, clothes, and the surroundings will not get dirty.
Wipe of any granules that may have fallen or clung to the filter.
This will not affect the deodorizing performance.
*
Senses the presence of cigarette
smoke, dust, pollen, and other
similar air contaminants.
Dust Sensor (P.E-21)
Rear panel
Odor Sensor (P.E-21)
Senses the odor components in the air.
Set in the outer part of the unit.
Filter
(Allergen-free, HEPA filter)
Pre-filter
Removes large size dust.
Name of Each Component / Accessories
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E-6
Operating the Touch Operation Panel
The indicator lights up when the child lock is set. (P.E-20)
The indicator lights up when the unit is operating on timer. (P.E-19)
The indicator lights up when the unit is operating with PM2.5 sensing. (P.E-19)
MENU
Touch this button first when the
display or operation panel is off.
When tapped again, it turns off the
display or operation panel.
Lock
(Long-press MENU for about 3 seconds)
Use this to prevent incorrect
operation. (P.E-20)
Note
The touch operation panel is made of glass.
If the touch operation panel display disappears, touch to display it again.
The touch operation panel display will disappear when is touched again.
The upper part of the touch operation panel is the display section and the lower part is the control section.
Use the touch operation panel to switch settings.
Notification Display
The glass touch may have a different reaction depending on the sur-
rounding temperature and humidity, physical condition of the user, and
the condition of the electronic appliances near by the unit.
If it does not respond after touching, release and try again.
If the interval between touches is short, the unit may respond incorrectly.
The sensitivity will not change by the force applied when touching.
There may be no response if the operation panel is wet or dirty.
Wipe off with a dry cloth to use.
The display may be difficult to view if the unit is placed in brightly lit
places such as near a window with direct sun light.
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E-7
Operating the Touch Operation Panel
Off-timer (P.E-19)
Use this to set the off-timer.
Airflow (P.E-17)
Use this to switch the
airflow rate.
Air Sensor (P.E-21)
Display
Operation
Panel
The level of air contamination detected
by the odor and dust sensors is
indicated through different colors.
Option (P.E-18)
Use to switch to quick cycle.
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E-8
Safety Precautions
Please read the following safety precautions carefully before using the unit.
To prevent injury to the user or other people and property damage, the following instructions must
be followed. Also read the precautions appearing in the text carefully to ensure correct use.
Defi nition of each indication
Incorrect operations that are carried out as a result of ignoring instructions will cause harm or dam-
age. The seriousness is classifi ed by the following indications.
WARNING
CAUTION
This symbol indicates the
possibility of death or serious injury.
This symbol indicates
the possibility of injury or
damage to property.
Meaning of Symbols
Indicates “warning or caution”.
Indicates “prohibition”.
Indicates “necessity”.
WARNING
To Prevent Fire, Electric Shock and Injury
AC Outlet, Power Plug and Power Cord
Remove dust from the blade and the blade mounting surface of the power plug.
Otherwise, it may cause a fi re.
Be sure to unplug the power cord from the AC outlet when cleaning or not using the
unit for an extended period of time.
Otherwise, it may cause an electric shock or injury.
Be sure to hold the plug when unplugging it.
Otherwise, it may cause an electric shock or short-circuit, which may result in a fi re.
Securely insert the power plug into the AC outlet.
Otherwise, it may cause an electric shock, overheating or fi re.
Do not stop operation by unplugging the power plug.
Otherwise, it may cause fi re, electric shock or malfunction.
Never plug or unplug the power plug with wet hands.
Otherwise, it may cause an electric shock.
Do not use a damaged power cord or power plug, or a loose AC outlet.
Otherwise, it may cause an electric shock, short-circuit or ignition.
Do not damage the power cord.
(Do not break, modify, forcibly bend, pull or twist it. Also do not place any heavy objects on it,
pinch it, or step on it when moving it with the caster.)
Otherwise, it may cause damage to the power cord, fi re or ignition.
Make sure to avoid inserting too many plugs into the AC outlet.
Otherwise, it may cause fi re or ignition.
Do not immerse the power plug in water, or pour water on it.
Do not use a power plug when wet.
Doing so may cause ground leakage, electrical shock and unit failure.
If the supply cord is damaged, it must be replaced by the manufacturer, its service
agent or similarly qualifi ed persons in order to avoid a hazard.
Do not use with a voltage other than 220-240V AC.
Otherwise, it may cause a fi re or electric shock.
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E-9
WARNING
Before Use
Ventilate the room frequently when in use with heating appliances.
Otherwise, it may cause carbon monoxide poisoning.
This product cannot remove carbon monoxide.
Do not block the air outlet or air inlets with laundry, cloth, curtains, etc.
Poor ventilation may cause overheating or fi re.
Do not use fl ammable materials (hair sprays, insecticides, air fresheners, etc.) near
the unit.
Do not use benzene, thinner or alcohol to clean the purifi er.
Otherwise, it may lead to cracking, electric shock, ignition, smoke or fi re.
Do not use in a kitchen as a substitute for a ventilation fan and range hood fan.
Otherwise, it may cause unit deformation by heat or it may ignite a fi re in the fi lter.
Also, it may cause failure or a decrease in the lifespan of the pre-fi lter, fi lter assembly and deodorizing
fi lter.
Keep away from lit candles, mosquito coils, lit cigarettes, etc. Also, do not let smoke
from these materials enter the unit.
Otherwise, it may cause fi re.
Do not operate the unit when using fumigating (smoking) type insecticide. Do not let
chemicals enter the unit.
Use of such insecticides will cause chemicals to accumulate in the unit and depending on a
person’s sensitivity to these chemicals, it may be harmful to one’s health.
Do not place in a location where the air from the outlets will blow directly onto heat-
ing appliances.
Otherwise, it may cause incomplete combustion and carbon monoxide poisoning.
Do not use in narrow spaces such as gaps between the furniture or closet.
Poor ventilation may cause overheating or fi re.
Do not operate the unit while fi lter, etc. is detached.
Otherwis
e it m
ay cause injury or failure.
Do not tilt or tip the unit over. Do not put your weight on the unit or step on it.
Also, do not use it in an unstable place or anywhere near infants.
Otherwise, it may cause the unit to tip over due to vibration, which may cause an injury or unit
failure.
Cleaning
When cleaning, do not splash water on the unit.
It may cause short-circuiting and electric shock.
Do not add water by submerging or splashing water on the unit.
It may cause short-circuiting and electric shock.
Safety Precautions
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E-10
Safety Precautions
(Continued)
WARNING
Place of Use
Do not use in a location where there is huge amount of oily smoke such as in cafete-
rias and eateries.
The oil residue or dust deposited in the unit may cause fi re, unit failure and unpleasant odor.
Do not use in a location where there is flammable gas, corrosive gas or metallic
dust, or risk of leakage of oil, fl ammable gas.
It may cause fi re, explosion or unit failure.
Do not use in a location where solvents such as paint and adhesives are being used
or stored.
It may cause deterioration of parts or fi re.
Do not use in a location where soot from oil, such as machine oil, is fl oating in the
air.
It may cause a crack, electric shock or fi re.
Do not use in a location where any chemical is used. (Hospitals, factories, laborato-
ries, beauty salons, photographic laboratories, etc.)
Chemicals and solvents evaporating into the air deteriorate the unit. This causes electric shock.
Do not use in a humid place or in a place where it may easily be wet, such as in a
bathroom.
It may cause electric shock or fi re due to ground leakage.
Do not place it near a hot object such as a heater.
It may cause deformation, discoloration, injury and unit failure.
Do not put in places exposed to direct sunlight, wind and rain.
It may cause overheating, electric shock and fi re due to ground leakage.
Do not use in a location where a machine tool that produces flammable dust or
sparks (such as a grinder or welder) is installed.
It may cause fi re.
Miscellaneous
Even after switching on, sometimes the air purifier is inoperative or air does not
come out. There may be “cracks” and “scratches” in the power cord, or the unit has
been moved which causes the operation to stop. There may also be unusual noise
and vibration during operation. The unit may be deformed and unusually hot. There
may be a burnt odor. If there are abnormalities aside from those mentioned, unplug
the power cord immediately to prevent accidents and contact your dealer to request
for checks or repairs.
These may cause fi re due to electric shock, ground leakage or short-circuiting.
Pay specifi c attention when the user of the air purifi er is the following:
(Infants, children, the elderly, those who cannot control their body temperature)
When the body is exposed directly to the wind for a long time, health may be compromised.
Cleaning
Do not use detergents when cleaning.
Usage of chlorine-based and acid type detergents will generate toxic gas and can cause a health threat.
Also, do not use neutral detergents as it may affect the plastic.
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