Philips Air Cleaner AC4072 User Manual

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AC4072  
AC4074  
User manual  
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6
English  
introduction  
Congratulations on your purchase and welcome to Philips!To fully benefit  
com/welcome.  
With this new living room air purifier you breathe cleaner air. For the best  
results, place the living room air purifier in a room where you spend most  
of your time, e.g. the living room.  
Wherever there are people, plants or pets, there are airborne particles that  
can affect your well-being, especially if you suffer from allergies. Because of  
these particles, the air inside a room may be more polluted than the air in  
a large city.  
Normally, particles are invisible and odourless. Nevertheless they can affect  
your health.The living room air purifier reduces the amount of animal  
dander and industrial pollutants in the air, and therefore improves the  
air quality. It also filters out ultrafine particles larger than 20 nanometres,  
including bacteria and some viruses.According to publications of the  
World Health Organization, the avian and human influenza viruses and the  
Legionella bacterium are larger than 20 nanometres.  
Filtration in several stages  
The living room air purifier has a unique multi-stage filtration system that  
ensures the best air quality:  
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Stage 1:The pre-filter has been treated with antibacterial substances. It  
catches big particles like human hair, pet hair etc.  
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Stage 2:The formaldehyde filter (supplied with AC4074) filters out  
formaldehyde and other volatile organic compounds (VOCs). In  
combination with the HEPA filter, the multi-care filter filters out dust,  
pollen and ultrafine particles larger than 20 nanometres, including  
bacteria and some viruses.According to publications of the World  
Health Organization, the avian and human influenza viruses and  
Legionella bacterium are larger than 20 nanometres.  
Note:The AC4074 and AC4072 are suitable for both the formaldehyde filter  
and the multi-care filter.When you replace the filter present in your type, you  
can choose the filter (formaldehyde or multi-care) that suits your needs best.  
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Stage 3:The activated carbon filter filters out odours and harmful gases  
effectively.  
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Stage 4:The high-performance composite HEPA filter with anti-  
bacterial coating effectively filters out fine dust and cigarette smoke,  
while the antibacterial and anti-mould functions of organic antibacterial  
materials filters out germs and mould.  
general description (Fig. 1)  
A
B
Air quality light ring  
Fan speed indicator (AC4074 only)  
C Air quality sensor outlet  
D Air quality sensor  
E
F
Air quality sensor inlet  
Handle  
G Air outlet  
H Air inlet  
I
J
Cord storage facility  
Mains cord  
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English  
7
K
Control panel  
1
2
3
4
5
6
7
8
9
Light sensor for night mode  
AIR QUALITY on/off button with light  
Power on/off button  
SILENT button with light  
Power-on light  
FAN SPEED button with light  
AUTO button with light  
Fan speed lights (1, 2, 3 and boost power)/filter replacement lights  
FAN SPEED indications  
10 REPLACE FILTER indications  
Filter 4: HEPA filter  
L
M Filter 3: activated carbon filter  
N Filter 2: formaldehyde filter (supplied with AC4074) or multi-care filter  
(supplied with AC4072)  
O Filter 1: pre-filter  
P
Front panel  
important  
Read this user manual carefully before you use the appliance and save it for  
future reference.  
Danger  
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Do not let water or any other liquid or flammable detergent enter the  
appliance to avoid electric shock and/or a fire hazard.  
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Do not clean the appliance with water or any other liquid or a  
(flammable) detergent to avoid electric shock and/or a fire hazard.  
Warning  
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Check if the voltage indicated on the bottom of the appliance  
corresponds to the local mains voltage before you connect the  
appliance.  
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If the mains cord is damaged, you must have it replaced by Philips, a  
service centre authorised by Philips or similarly qualified persons in  
order to avoid a hazard.  
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Do not use the appliance if the plug, the mains cord or the appliance  
itself is damaged.  
This appliance is not intended for use by persons (including children)  
with reduced physical, sensory or mental capabilities, or lack of  
experience and knowledge, unless they have been given supervision or  
instruction concerning use of the appliance by a person responsible for  
their safety.  
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Children should be supervised to ensure that they do not play with the  
appliance.  
Do not block the air inlet and outlet, e.g. by placing items on the air  
outlet or in front of the air inlet.  
Caution  
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This appliance is not a substitute for proper ventilation, regular vacuum  
cleaning or use of an extractor hood or fan while cooking.  
If the wall socket used to power the appliance has poor connections,  
the plug of the appliance becomes hot. Make sure you plug the  
appliance into a properly connected wall socket.  
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English  
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Always place and use the appliance on a dry, stable, level and horizontal  
surface.  
Leave at least 20cm free space behind and on both sides of the  
appliance and leave at least 30cm free space above the appliance.  
Do not place anything on top of the appliance and do not sit on the  
appliance.  
Do not place the appliance directly below an air conditioner to prevent  
condensation from dripping onto the appliance.  
Make sure all filters are properly installed before you switch on the  
appliance.  
Only use the original Philips filters specially intended for this appliance.  
Do not use any other filters.  
Avoid knocking against the appliance (the air inlet and outlet in  
particular) with hard objects.  
Always lift or move the appliance by the handle at the back of the  
appliance.  
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Do not insert your fingers or objects into the air outlet.  
Do not use this appliance when you have used indoor smoke-type  
insect repellents or in places with oily residues, burning incense or  
chemical fumes.  
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Do not use the appliance near gas appliances, heating devices or  
fireplaces.  
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Always unplug the appliance after use and before you clean it.  
Do not use the appliance in a room with major temperature changes,  
as this may cause condensation inside the appliance.  
The appliance is only intended for household use under normal  
operating conditions.  
Do not use the appliance in wet surroundings or in surroundings with  
high ambient temperatures, such as the bathroom, toilet or kitchen.  
The appliance does not remove carbon monoxide (CO) or radon  
(Rn). It cannot be used as a safety device in case of accidents with  
combustion processes and hazardous chemicals.  
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Electromagnetic fields (EMF)  
This Philips appliance complies with all standards regarding electromagnetic  
fields (EMF). If handled properly and according to the instructions in this  
user manual, the appliance is safe to use based on scientific evidence  
available today.  
Before first use  
Placing the filters  
The appliance comes with all filters fitted inside, but you have to remove  
the packaging of the filters before you can use the appliance. Remove all  
filters, unpack them and place them back into the appliance as described  
below.  
Tip: Place the appliance against a wall for more stability when you remove or  
insert filters.  
Note: Make sure you insert the filters in the correct position.  
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1 Place your fingers in the recesses of the side panels and gently pull  
the top part of the front panel towards you.Then lift the hooks at  
the bottom of the panel out of the bottom of the appliance.  
2 Remove all the filters from the appliance.  
3 Remove all packaging material from the filters.  
4 Put filter 4 (HEPA filter) back into the appliance.  
Note: Make sure that the side with the tag is pointing towards you.  
5 Put filter 3 (activated carbon filter) back into the appliance.  
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6 Put filter 2 (formaldehyde filter for AC4074 or multi-care filter for  
AC4072) back into the appliance.  
Note: Make sure that the side with the tag is pointing towards you.  
7 Place filter 1 (pre-filter) in the appliance.  
Note: Make sure that the side with the two projections is pointing towards you.  
Note: Make sure that all hooks are properly attached to the appliance.  
8 To reattach the front panel, insert the bottom hooks into the bottom  
of the appliance first (1).Then push the panel against the body of the  
appliance (2).  
2
1
Using the appliance  
1 Put the plug in the wall socket  
All lights go on twice and you hear a beep.Then the lights go out  
again.  
2 Press the on/off button to switch on the appliance.  
The power-on light and the AIR QUALITY light on the control panel  
go on.  
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The air quality light ring shows the quality of the air.  
Air quality indication  
Colour  
Blue  
Air quality  
very good  
good  
Deep purple  
Purple  
Red  
fair  
bad  
To switch off the air quality light ring, press the AIR QUALITY button.  
Note:The air quality light ring automatically goes on when the appliance is  
switched on.  
The appliance automatically starts operating in the AUTO mode.  
To switch off the appliance, press the on/off button again and unplug the  
appliance.  
Note:When the humidity level in the room is very high, it is possible that  
condensation develops on the air quality sensor.As a result, the AIR QUALITY  
light on the control panel and the air quality light ring may indicate that the  
air quality is bad even though the air quality is good. In this case, the auto  
mode causes the appliance to run at high fan speed.You can solve this by  
cleaning the air quality sensor. If condensation develops frequently during  
periods of high humidity, we advise you to use one of the manual speed  
settings.  
Fan speed lights/filter replacement lights  
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The lights on the right-hand side of the control panel have a dual  
function: they either indicate the fan speed or they indicate that the  
filters should be replaced or cleaned.  
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When lights 1 to 3/4 light up continuously, they indicate the current fan  
speed.  
When light 1 flashes, you have to clean the pre-filter.When lights 2  
and/or 3/4 flash, you have to replace these filters. If lights 2 and/or  
3/4 flash, the REPLACE FILTER light also flashes (see chapter ‘Filter  
replacement’ for more information).  
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When lights 2, 3/4 and the REPLACE FILTER light are on continuously,  
the appliance is locked (see chapter ‘Filter replacement lock’ for more  
information).  
Adjusting the air quality sensor sensitivity  
People with certain health problems (e.g. allergies or asthma) have a  
greater need for healthy air. For this reason, the appliance allows you to  
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adjust the sensitivity of the air quality sensor.When it is set to a higher  
sensitivity level, the appliance already starts cleaning the air at lower  
pollution levels to make the air even cleaner.  
There are 3 sensitivity levels:  
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standard  
sensitive  
extra sensitive  
The pollution sensor is set to standard sensitivity.You can adjust the  
sensitivity of the air quality sensor in the following way:  
1 If the appliance is already plugged in, unplug the appliance and wait  
for a few minutes.  
2 Press the AIR QUALITY button and simultaneously put the mains  
plug in the wall socket.  
The appliance beeps twice and one of the fan speed lights flashes to  
show the current sensitivity level of the air quality sensor.  
sensitivity level:  
Fan speed light  
Sensitivity level  
extra sensitive  
sensitive  
1
2
3
standard  
3 Press the FAN SPEED button to adjust the sensitivity level of the air  
quality sensor.  
One of the fan speed lights flashes to show the set sensitivity level of  
the air quality sensor.  
4 Press the on/off button to switch off the appliance.  
Note:When you change the sensitivity level, the appliance automatically starts  
operating at the set sensitivity level whenever you switch on the appliance.  
Auto mode  
When the appliance is switched on, the built-in air quality sensor  
automatically measures the ambient air quality.When the auto mode is  
activated, the appliance selects the most appropriate fan speed for the  
measured air quality.  
1 Press the on/off button to switch on the appliance.  
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2 Press the AUTO button to activate the auto mode.  
Note:When the appliance is operating in another mode and you want to  
activate the auto mode, simply press the AUTO button.  
The AUTO light goes on.  
The FAN SPEED light indicates at which fan speed the appliance is  
operating.  
Note:When the air quality is very good and the appliance operates at a very  
low fan speed, the FAN SPEED light for the lowest speed setting does not go  
on. In this case only the power-on light and the AUTO light are on.  
Note:The built-in air quality sensor measures the air quality and automatically  
selects the appropriate speed setting to ensure the best possible air quality in  
your room. When the air is clean, the appliance stops running.When the air  
quality deteriorates, the appliance starts running at a low fan speed and noise  
level so that the energy consumption is minimised.  
Night mode  
The appliance works in harmony with its surroundings. In auto mode, the  
appliance automatically switches to night mode when the room in  
which it is operating becomes dark.When the room has been dark for  
3 minutes, the lights of the appliance go out, the fan speed and noise  
level are reduced and the energy consumption is minimised. If the room  
becomes bright again for 5 minutes or longer, the appliance resumes  
normal operation.  
In night mode, the automatic control is still active. If the air is clean, the  
lights and the fan are off. If the air quality deteriorates, the appliance is  
activated and the lights and the fan come on again.  
Note:The night mode only works when the appliance is operating in the auto  
mode.  
Fan speed  
If you do not use the auto mode, you can select the desired fan speed  
yourself.  
1 Press the on/off button to switch on the appliance.  
2 Press the FAN SPEED button one or more times to select the  
desired fan speed.  
The corresponding fan speed light and the indications above the  
lights show the set fan speed (1, 2, 3 or boost power).  
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AC4074 only:The corresponding fan speed light in the fan speed  
indicator goes on.  
Note: Select boost power if you need an extra strong airflow when the air in  
the room is very dirty.All three fan speed lights go on.  
Silent mode  
When you use the appliance in silent mode, it operates very quietly.  
1 Press the on/off button to switch on the appliance.  
2 Press the SILENT button to activate the silent mode.  
The SILENT light goes on.  
If you want to go back to the FAN SPEED mode or AUTO mode, simply  
press the FAN SPEED or AUTO button.  
Cleaning  
Always unplug the appliance before you clean it.  
Never immerse the appliance in water or any other liquid.  
Never use aggressive or flammable cleaning agents such as bleach or  
alcohol to clean any part of the appliance.  
Only the pre-filter is washable.All other filters are NOT washable.  
Body of the appliance  
Regularly clean the inside and outside of the body to prevent dust from  
collecting on the inside and outside.  
1 Wipe away dust with a soft dry cloth from the body of the appliance.  
2 Clean the air inlet and the air outlet with a soft dry cloth.  
Pre-filter  
The pre-filter is washable.  
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Clean the pre-filter when the first filter replacement light flashes to  
ensure optimal functioning of the appliance.  
1 Place your fingers in the recesses of the side panels and gently pull  
the top part of the front panel towards you.Then lift the hooks at  
the bottom of the panel out of the bottom of the appliance.  
2 To remove the pre-filter, grab the two projections and pull the filter  
towards you.  
3 Wash the pre-filter under a running tap. If the pre-filter is very dirty,  
use a soft brush to brush away the dust.  
Tip:Alternatively, you can clean the pre-filter by removing the dust with a  
vacuum cleaner.  
4 Air-dry the pre-filter.  
Note: Make sure that the pre-filter is completely dry. If it is still wet, bacteria  
may multiply in it and shorten the lifetime of the pre-filter.  
5 Put the pre-filter back into the appliance.Attach all hooks properly  
to the appliance.  
Note: Make sure that the side with the two projections is pointing towards you.  
6 To reattach the front panel, insert the bottom hooks into the bottom  
of the appliance first (1).Then push the panel against the body of the  
appliance (2).  
2
1
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Air quality sensor  
Clean the air quality sensor every 2 months for optimal functioning of  
the appliance. Clean it more frequently if you use the appliance in a dusty  
environment.  
Note:When the humidity level in the room is very high, it is possible that  
condensation develops on the air quality sensor.As a result, the AIR QUALITY  
light on the control panel and the air quality light ring may indicate that the air  
quality is bad even though the air quality is good. In this case you have to clean  
the air quality sensor or use one of the manual speed settings.  
1 Clean the air quality sensor inlet and the air quality sensor  
outlet with a soft brush.  
2 Remove the air quality sensor cover.  
3 Clean the air quality sensor, the dust inlet and the dust outlet with a  
lightly moistened cotton swab.  
4 Dry them with a dry cotton swab.  
5 Reattach the air quality sensor cover.  
Filter replacement  
Filter maintenance  
This appliance is equipped with the Healthy air protect lock to ensure that  
the filters are in optimal condition when the appliance is operating.  
When one of the filters is almost full and has to be cleaned or replaced,  
the appropriate filter replacement light starts to flash.When you do not  
replace filter 2, filter 3 and/or filter 4, the appliance stops operating and the  
appliance is locked.  
When the appliance is locked, the filter replacement light of the filter  
concerned lights up on continuously.  
Note: Only replace a filter when the corresponding filter replacement  
light flashes. If you replace the filter before the filter replacement light starts  
flashing, the lifetime counter will not be reset but will continue counting the  
lifetime of the previous filter.As a result, the filter replacement light will start  
flashing much too soon.  
Filter replacement lights  
The filter replacement lights indicate which filter has to be cleaned or  
replaced.  
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English 17  
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Filter replacement light 1 flashes: filter 1 (the pre-filter) has to be  
cleaned. See chapter ‘Cleaning’ for further instructions.  
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Filter replacement light 2 flashes: filter 2 (the formaldehyde filter  
(supplied with AC4074) or multi-care filter (supplied with AC4072))  
has to be replaced.  
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Filter replacement light 3/4 flashes: the activated carbon filter and the  
HEPA filter have to be replaced.  
Note:The HEPA filter and the activated carbon filter have a similar lifetime.  
Therefore they have to be replaced at the same time.  
Filter replacement lock  
If you do not replace the filter in time, the appliance stops operating  
approx. 2 weeks after the filter replacement light started flashing.When the  
appliance is locked, it does not operate until you have replaced the full filter  
and pressed the reset button.  
Note:When filter replacement lights 2 or 3/4 and REPLACE FILTER on the  
control panel are on continuously, the appliance is locked (see section ‘Filter  
maintenance’ in this chapter for more information).  
How long it takes before the appliance is locked depends on the operating  
time and speed level selected after the filter replacement alert.  
Approximately 1 day before the appliance locks, it beeps every 30 minutes  
to inform you that one of the filters needs to be replaced.  
When the appliance is locked, you hear a beep when you press any button.  
You can switch off the appliance by pressing the on/off button.  
If the appliance is locked:  
1 Check which filter needs to be replaced (see section ‘Filter  
replacement alerts’).  
2 Switch off the appliance and unplug it.  
3 Replace the appropriate filter (see section ‘Replacing the filters’).  
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Replacing the filters  
Tip: Place the appliance against a wall for more stability when you remove or  
insert filters.  
1 Switch off the appliance and unplug it.  
2 Place your fingers in the recesses of the side panels and gently pull  
the top part of the front panel towards you.Then lift the hooks at  
the bottom of the panel out of the bottom of the appliance.  
3 To remove filter 1 (pre-filter), grab the two projections and pull the  
filter towards you.  
4 To remove filter 2 (formaldehyde filter for AC4074 or multi-care  
filter for AC4072), grab its tag and pull it towards you.  
5 To remove filter 3 (activated carbon filter), grab its tag and pull it  
towards you.  
6 To remove filter 4 (HEPA filter), grab its tag and pull it towards you.  
7 Discard the filter that needs to be replaced and unpack the new  
filter.  
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8 Put filter 4 (HEPA filter) back into the appliance.  
Note: Make sure that the side with the tag is pointing towards you.  
9 Put filter 3 (activated carbon filter) back into the appliance.  
10 Put filter 2 (formaldehyde filter for AC4074 or multi-care filter for  
AC4072) back into the appliance.  
Note: Make sure that the side with the tag is pointing towards you.  
11 Put filter 1 (pre-filter) back into the appliance.  
Note: Make sure that the side with the two projections is pointing towards you.  
Note: Make sure that all hooks are properly attached to the appliance.  
12 To reattach the front panel, insert the bottom hooks into the bottom  
of the appliance first (1).Then push the panel against the body of the  
appliance (2).  
2
13 Put the plug in the wall socket and switch on the appliance again.  
1
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20 English  
14 Press the filter reset button with a thin tool.  
Note:You do not need to press the filter reset button after cleaning filter 1  
(pre-filter).  
Note:You cannot reset the appliance when you replace a filter before its filter  
replacement light starts flashing.  
Note:You cannot reset the appliance if it is not plugged in and switched on.  
storage  
1 To store the mains cord, wind it round the cord storage facility at  
the bottom of the appliance.  
Accessories  
New filters are available under the following type numbers:  
Filter  
Type number  
Filter 2: Formaldehyde filter  
Filter 2: Multi-care filter  
Filter 3:Activated carbon filter  
Filter 4: HEPA filter  
AC4142  
AC4141  
AC4143  
AC4144  
Environment  
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Do not throw away the appliance with the normal household waste  
at the end of its life, but hand it in at an official collection point for  
recycling. By doing this, you help to preserve the environment.  
guarantee and service  
If you need information or if you have a problem, please visit the Philips  
in your country (you find its phone number in the worldwide guarantee  
leaflet). If there is no Consumer Care Centre in your country, go to your  
local Philips dealer.  
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English 21  
Troubleshooting  
This chapter summarises the most common problems you could  
encounter with the appliance. If you are unable to solve the problem with  
the information below, contact the Consumer Care Centre in your country.  
Problem  
Possible solution  
The appliance doesn’t  
work.  
You ignored the filter replacement alerts.You did not replace the filter  
when the filter replacement light started flashing and did not respond  
when the appliance started to beep every 30 minutes after approx. 2  
weeks.As a result, the appliance is now locked and you have to replace the  
filter and reset the appliance (see chapter ‘Filter replacement’) so that the  
appliance can operate again.  
No air comes out of the  
air outlet  
The appliance is not switched on. Put the plug in the wall  
socket and switch on the appliance.  
The air quality is good and the auto mode is activated. In this case, the  
appliance switches off automatically when the air is clean to save electricity.  
The fan speed does not  
change when the AUTO  
mode is activated.  
When the room becomes dark, the night mode is activated automatically  
when the appliance is in auto mode. In this case, the fan speed is set to a  
very low level. If you want to change the fan speed, press the FAN SPEED  
button one or more times to set the desired fan speed.  
The airflow that comes  
out of the air outlet is  
significantly weaker than  
before.  
The pre-filter is dirty. Clean the pre-filter (see chapter ‘Cleaning’).  
You haven’t removed all packaging material from the filters. Make sure that  
you have removed all packaging material.  
The air quality does not  
improve, even though  
the appliance has been  
operating for a long time.  
One of the filters has not been placed in the appliance. Make sure that  
all filters are properly installed in the following order, starting with the  
innermost filter: 1) HEPA filter, 2) activated carbon filter, 3) formaldehyde  
filter (supplied with AC4074) or multi-care filter (supplied with AC4072),  
4) pre-filter.  
The air quality sensor is wet.The humidity level in your room is high and  
causes condensation. Make sure that the air quality sensor is clean and dry  
(see chapter ‘Cleaning’).  
The room in which you run the appliance is larger than 55m², which is the  
maximum size at which this appliance can operate effectively.  
The colour of the air  
quality light ring and the  
air quality light always stays  
the same.  
The air quality sensor is dirty. Clean the air quality sensor (see  
chapter ‘Cleaning’).  
There is not enough ventilation in the room. Open a window, to improve  
the air circulation.  
I need cleaner air because You can change the air quality sensor sensitivity (see chapter ‘Using the  
I have an allergy.  
appliance’) to make the appliance clean the air even better.  
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22 English  
Problem  
Possible solution  
The appliance is extra  
loud.  
You haven’t removed all packaging material from the filters. Make sure that  
you have removed all packaging material.  
The appliance still indicates Perhaps you did not press the filter reset button properly. Plug in the  
that I need to replace a  
filter, but I already did.  
appliance, press the on/off button and press the filter reset button with a  
flat tool.  
The appliance stops  
operating, although the  
power-on light is still on.  
The built in quality sensor has determined that the air quality is good and  
that the air does not need to be cleaned anymore.When the air quality  
deteriorates, the appliance starts running at a low fan speed and noise  
level so that the energy consumption is minimised.  
The appliance does not  
This is a component defect. Contact the Consumer Care Centre in your  
work. Fan speed lights 1, 2 country (you find its phone number in the worldwide guarantee leaflet). If  
and 3 flash, all other lights there is no Consumer Care Centre in your country, go to your local Philips  
are out.  
dealer.  
The appliance does not  
work. Fan speed lights 1  
This is a component defect. Contact the Consumer Care Centre in your  
country (you find its phone number in the worldwide guarantee leaflet). If  
and 2 flash, all other lights there is no Consumer Care Centre in your country, go to your local Philips  
are out.  
dealer.  
AC4074:The appliance  
does not work.The air  
quality light ring flashes  
blue, all other lights are  
out.  
This is air particle sensor error or an air particle sensor and gas sensor  
error. Contact the Consumer Care Centre in your country (you find  
its phone number in the worldwide guarantee leaflet). If there is no  
Consumer Care Centre in your country, go to your local Philips dealer.  
AC4074:The air quality  
light ring keeps flashing  
purple.  
This is a gas sensor error. Switch off the appliance and unplug it.Take the  
appliance to your Philips dealer or an authorised Philips service centre.  
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© 2012 Koninklijke Philips Electronics N.V.  
All rights reserved.  
4222 002 73147  
12172  
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