In-Line
Filters... it's almost like insurance
for your Auto A/C Compressor! |
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In-line
filters provide excellent protection for your auto A/C compressor. In fact,
if your vehicle requires a replacement compressor (new or remanufactured)
you should insist that an
in-line
filter be installed. Why? Because by virtue of design, the in-line filters
trap and hold more debris than a typical orifice tube, yet they still allow
the refrigerant to flow through the system. That's important, because as
long as refrigerant flows, refrigerant oil will be circulating and your
compressor will continue to be lubricated. |
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In-Line
Filters on your auto A/C system
can help prevent this! |
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Pictured
left is an orifice tube removed from an auto A/C system that suffered a
compressor failure. Click the image to have a close up look at the debris
on the inlet filter screen of this orifice
tube. You will quickly see how the screen is restricted; the restrictions
caused refrigerant and oil flow to the compressor to be 'shut off'! |
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This
is another view of the same orifice tube.
Up close you will be able to see the corrosion, particles of metal and even
a piece of compressor piston ring (teflon ring) caught on the orifice tube.
Remember, it takes less than 1/10 of a teaspoon of debris to clog an orifice
tube! |
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| More
about In-Line Filters |
| In-line
filters have been available for automotive air conditioning systems for years.
They never gained wide spread popularity for a number of reasons. One of
the reasons was installation. Many add on filters were manufactured to install
into rubber hose sections. In today's automotive A/C systems, most of the
a/c hoses or 'lines' are metal (aluminum), so filters that require installation
into rubber hose are not convenient. Another problem was the in-line a/c
filters were manufactured as a sealed (welded) unit. The only way to change
the filter was to change the entire unit. That was not cost effective. |
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| Why
are in-line A/C filters required? |
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Above
is a schematic of a typical auto A/C system using an orifice tube. NOTE that
for systems using THERMOSTATIC EXPANSION VALVES, the valve would be
in place of the orifice tube. Also, don't be confused by the schematic
illustration. Typically, the line between the condenser and the expansion
valve is much longer.
See the automotive A/C system illustration below . |
Illustrated
on the left is a typical auto A/C system schematic showing the major
A/C system components. Flow arrows indicate the direction of refrigerant
flow. Typically, any debris that is developed in the system is carried by
the refrigerant, in the same direction the refrigerant flows. The inlet screen
of the orifice tube is the only filter on the system. As soon as it gets
restricted, refrigerant and oil circulation stops. When refrigerant flow
is restricted, the system cooling performance is reduced. Typically, that
happens along with 'rapid' compressor cycling. The in-line A/C filter should
be installed PRIOR to the orifice tube, as shown in the illustration. |
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| Unique
in-line filter design for all auto A/C systems |
| This
new and unique in-line A/C filter is the last filter that you will ever
install... that's because the filter element is interchangeable! That's right!
No more having to guess... no more tossing out the old filter! With this
new Keep-it-Kleen in-line A/C filter design, you simply change the filter
element! That's innovation! |
The
last filter you will ever install! That's because the filter element is
interchangeable! Installation is quick and easy and requires NO SPECIAL TOOLS!
See the
installation
instructions right here! |
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Typical
'10 minute' installation is like insurance
for your auto A/C compressor! |
| Typical
installation of an in-line A/C filter would be as illustrated on the right.
The filter should be installed in the LIQUID LINE BEFORE the orifice tube.
That way, you are protecting the orifice tube and helping to maintain flow
of refrigerant and oil to the compressor.
As
shown, the new design in-line filter is manufactured to install into aluminum
tube. It utilizes a universal 'compression fitting' type mount that is easy
to install and requires no special tools!
Where
your original orifice tube is located in the liquid line between the condenser
and evaporator or in the condenser outlet, simply add the optional 'universal
orifice tube' as shown in the photos below. |
The
compression fitting installation makes it easy to install this new design
in-line A/C filter without using any special tools! For applications where
the orifice tube is mounted in-line between the condenser and the evaporator,
or in the condenser outlet, simply add the optional universal orifice tube
as shown below. |
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| Why
LIQUID Line in-line filters? |
| First
of all, because they work! Originally used by General Motors in the late
1970's the filters were designed to help prevent premature compressor failure.
The innovative Keep-it-Kleen is manufactured based on many of the same theories
of the original filters, except that they are made to have an interchangeable
filter element. Something that was never part of the original GM
design.
Some
suppliers support 'Suction Line' filters. The misinformed theory
claims that the filter installed in the suction line JUST BEFORE THE COMPRESSOR
will prevent debris from entering the compressor. Well, in theory it would...
if debris could ever get that far! Why do we say that? Because...
look at the system schematic! For debris to travel into the suction side
of the A/C compressor, it would first have to pass through the orifice tube,
(oh yes... did you see what happens to an
orifice tube when it encounters debris?)
then travel UP through the evaporator,
through the ACCUMULATOR (typically located at the evaporator
outlet) and THEN onward to the compressor. Simply put... it just doesn't
happen that way.
Why?
First of all, the orifice filter screen stops most debris. Anything that
passes that remains int he bottom of the evaporator. Why? Because the refrigerant
in the evaporator BOILS. Yes... Boils! When a liquid boils, any contaminants
are left in the liquid! They do not move through to the vapor. (That's
physics!) So how does the debris get into the suction side of the compressor?
It doesn't! It's just that plain and simple. In fact, consider
this. The suction side filters available on the market are about as useful
as "taking your accordion deer hunting!" That's the plain truth! |
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Truly
innovative! The only in-line A/C filter that helps prevent compressor failure...
and the only one
you should insist on! |
The
unique filter design makes it
easy to
install. The four-in-one filter pack traps and holds more debris than
the orifice tube while still maintaining refrigerant and oil flow throughout
the A/C system. Optional orifice tube installs in seconds for applications
where the factory orifice tube is installed between the condenser and evaporator
(in-line) or at the condenser outlet. |
The
Keep-it-Kleen in-line A/C filter is unique because the filter element can
be changed!
The
4 stage filter includes a primary screen, primary fiber filter (yellow),
secondary fiber filter (dark grey) and a secondary filter screen. The complete
kit comes assembled ready to install. View and download the installation
instructions right here!
On
applications where the original orifice tube is located BETWEEN THE CONDENSER
AND THE EVAPORATOR (typical on some Ford vehicles) or at the OUTLET OF THE
CONDENSER, simply add the optional universal orifice tube. Install it into
the rear assembly of the filter and you're done! |
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| In-Line
Filters are available at the COOL ZONE! |
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In
Line Filter -3/8" Tube - A8200
Complete
kit with all installation hardware and instructions.
$29.85
each Kit - DETAILS |
In
Line Filter -1/2" Tube - A8201
Complete
kit with all installation hardware and instructions.
$29.85
each Kit - DETAILS |
Replacement
Filter Pack - A8205
Replacement
Filter Pack includes screens and fiber filter element. For use with A8200
or A8201.
$7.35
each Kit - DETAILS |
Universal
Orifice Tube FOR In Line Filter Kits - A8207
Use
this universal orifice tube to replace OE tubes installed at condenser or
mid line.
$8.30
each Kit - DETAILS |
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| Technical
Support ? |
| We're
here to help! If you have questions about this product (or any others available
at the COOL ZONE) please contact our technical support staff directly by
e-mail. |
| Available
world wide! |
| The
COOL ZONE Ships world wide.
However, if you have an interest in distribution and/or manufacture under
license for your market, please contact us directly by
e-mail.
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This was probably one of the best books on recharging
air conditioning that I have seen...
