PART II AIR CLEANING TECHNOLOY OF THE UNIT
2-7
ENGLISH
Fig. 2.3-1 Stop the operation and unplug
the cord from the electrical outlet. Open
the front panel, simply pull out the
activated carbon filter.
2.3 ACTIVATED CARBON FILTER
Activated carbon, the universal adsorbent, has a capacity for virtually all
vapor contaminants and will adsorb and retain a wide variety of chemicals
at the same time.
The adsorb diffuses thru the surface film to the macropore structure. Then,
due to van der Walls' forces, the gas molecule migrates into the micropore
structure, condensing during this movement, and finally stopping when
either the forces become balanced or it becomes physically blocked.
This molecule, which was an objectionable gas, will remain a liquid inside
the carbon until it receives enough energy, in the form of heat, to excite it. If
this condition arises, the molecule will begin moving toward the surface. If
enough energy (heat) is absorbed, it will be vaporized, returned to a gas
and be released back into the air stream, i.e. the process will be reversed.
For information, see page 1-6 in this manual. The activated carbon filter of
the unit is located behind the electronic cell (Fig. 2.3-1). To improve the
odor removing performance, the unit utilizes a carbon powder impregnated
pad not granular form. Room conditions such as air temperature and
humidity also effect the capacity of adsorbents to remove odors.
The activated carbon filter should be replaced when it is no longer effective
in eliminating odors.
2.4 UV lamp and photo catalyst
After removing the activated carbon filter, you can see two lamps
and photo catalyst behind them. The unit utilizes nano technology
photo catalyst and 6 watt UVC lamps in the 254 nm range.
UVC utilizes the short wavelength of UV that is harmful to forms
of life at the micro-organic level. It is effective in destroying the
nucleic acids in these organisms so that their DNA is disrupted by
the UV radiation.
When the photo catalyst (TiO
2
) captures UV light, it forms
activated oxygen from oxygen in the air. This process is similar to
photosynthesis, in which chlorophyll captures sunlight to turn
water and carbon dioxide into oxygen and glucose. The formed
activated oxygen is strong enough to oxidize and decompose
organic materials or smelling gas, and kill bacteria. For more
information, see PART I GENERAL DESCRIPTION ON AIR
CLEANING.
Replacing the UV lamp
When the UV Lamps indicator light flashes, it is time to replace
the UVC germicidal lamps. After removing the UV light blocker,
gently rotate the lamp a quarter turn in either direction until it
unlocks from the socket. Pull the pins out the sides of the socket,
one end at a time. After replacing the UV lamps, press the
RESET2 button on the remote control for 12 times (New model is
changed to 5 times) to reset the UV lamps life. You also can
press and hold the reset button on the main circuit board for 6
seconds to initiate the UV lamp life.
The photo catalyst will not be replaced. However, remove any
dust by a vacuum cleaner.
Replacing the activated carbon filter
The unit has a Filter Life indicator on the display panel, the Filter Life LED indicator light will blink to indicate it is time
to replace the carbon filter. The time between activation of the Filter Life indicator light is based on the unit run time
that is selected by the manufacturer. In fact, the life of the carbon filter will depend on the concentration of odors and
fumes in the air passing through the air purifier.
After replacing the activated carbon filter, press the RESET1 button for 12 times (new model is changed to 5 times) on
the remote control or until you hear the beep sound from the unit to initiate the Filter Life indicator light. You also can
press the reset button on the main circuit board to reset the activated carbon filter life. For more information about the
remote control reset.
Fig. 2.4-1 Remove the front panel and the swing
nut on the UV light blocker to remove the UVC
lamp.
Always unplug the unit before cleaning,
servicing or replacing the UV lamp.
Never look directly at UV lamp. Direct
exposure to germicidal light can cause
temporary or chronic damage to your
eyesight, or even blindness.
WARNING
Activated
carbon filter
Photo catalytic
UVC Lamp
Summary of Contents for R200T
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