lakeair MAX Guard 120 Service manual

Operating and Service Manual
MAX Guard 120

INDEX
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ABOUT Your MAX-Guard
The MAX-Guard air purifier was designed to provide long service. The unit was designed to be
easily repairable. The product warranty is 7 years but you can expect 15 or more years of useful
product life. The MAX-Guard is a heavy duty all air purifier. There are no circuit boards. We use
simple switches that if necessary are easy to replace.
Unpacking
Your MAX-Guard air purifier is shipped on a 26" x 26" pallet. If you ever need to ship your air
purifier back to the factory it MUST be shipped strapped to a pallet. The MAX-Guard was
designed to be easily repaired so it is unlikely to need to ship your unit back.
Care should be taken while unpacking the MAX Guard. The unit is quite heavy and the box
should be placed in the upright position. It may be necessary to slice the corners of the box if you
are unable to lift the unit out.
It is a good idea to get help from another person while removing the unit from the box. Place the
air purifier on a flat surface. The MAX-Guard is a high-volume air purifying system and can clean
the air in a large area. However, to clean the air, the air must get to the unit. Unit location will be
best if the product is centrally located in the room. Use of an additional fan to move the air in
the space may be helpful.
Operation
Plug the line cord into a standard household outlet with 120V AC 60 Hz. Caution should be taken
to operate the unit with the required voltage, as to do otherwise may damage the unit and void
the warranty.
The unit starts in turbo speed. As you rotate the knob clockwise the unit’s blower speed will
begin to slow. Note: blower normally takes 5-10 seconds to start rotating. To turn off: Turn
counter clockwise until you hear a click. Most times you will not need to run the MAX-Guard in
turbo mode. There is sufficient volume of air purification to run the unit at a slower speed with
little noise and still clean the room air sufficiently.
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Getting to Know your MAX-Guard
The MAX-Guard is sold with a number of different filter package options. Not all of the
following information will apply to your product. The filter options available are:
1. Standard HEPA
2. MERV 15
3. Electrostatic
4. HEPA / UVGI
All MAX-Guard filter packages include a pre filter and carbon filter. In the HEPA/UVGI model
the carbon filters are incorporated into the UVC chamber. It is important to regularly inspect,
clean and replace filters as needed. Failure to do so may lead to poor unit performance and
voiding of the product warranty. The Blowers in this unit depend on air flow to keep the cool.
Insufficient air flow may cause the motor bearings to over heat and fail. The Blowers are rated
for 60,000 hours of normal use. Proper maintenance can greatly extend the blower life.
Maintenance
Your LakeAir Air Cleaner is a high quality, precision piece of equipment designed for many
years of satisfactory performance. Adhere to a regular maintenance schedule and no
problems should occur. Your Air purifier should be checked periodically for “dust load” and
cleaned if found to have a large accumulation of dust and lint. Under regular conditions The
HEPA filter should last 1 year and be replaced annually. The carbon filter should be changed
every 3-6 months. When odors are no longer being removed, it is time to replace the carbon
filter. The electrostatic filter cell should be washed every 3-6 months. The prefilter should be
cleaned every 3 months. When used in a smoky environment the MAX-Guard filters should be
serviced more often. The UVGI bulbs (UVGI units only) should be changed every 12 months.

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MAX-Guard Major Parts
Fuse Box 497546
LED Indicator 100139
Potentiometer 371922
Thumb Screw 470122
Safety Switch 497567
Blower 300781
Motor Mount 200478
Universal Plug 497546

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Filter Removal and Installation
The pre filter is the first of 3 filters used in the MAX-Guard. The pre filter removes large
particles from the air stream. It also extends the life of the main filter. The prefilters rating is
MERV 2 and its Part# is 490052. The pre filter is mounted into the door of the MAX-Guard
To remove or re-install lift the end of the prefilter over the filter stop and slide along filter
channel
PreFilter

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Main Filter
The main filter will be one of 4 different filters. Possible options are Standard HEPA
(20 x 16 x 4.75), MERV 15 Media filter (20 x 16 x 4), Electrostatic filter (20 x 16 x 4.5)
or UVGI HEPA (20 x 26 x 2.4) The main filters fit snugly into the filter box and can be
removed easily. All 4 filters have a lip that allows you to get a good hold on the
filters. The filter lip may be a bit sharp so take care not to cut yourself.
Move the filter back and forth with a side-to-side motion drawing it slowly to you.
You can reinstall the filter in the same manner gently moving the filter back into
place. The main filter should touch the carbon filter.
Carbon Filter
The carbon filter is located directly behind the main filter. To remove the carbon
filter, put your fingers on the lip of the filter and gently remove the filter with a side-
to-side motion. Note: The lip is metal and may be a bit sharp use caution not to cut
yourself while removing. In an UVGI unit the carbon filter is incorporated into the
UVGI chamber. You should never run the UVGI filter without a carbon filter both in
front and back of the UVGI element.

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Electrostatic Cell Removing and Re-installing
CAUTION
Always Ground the Cell before handling!
When you open the door to the
Unit all power is cut off. It is
possible however that some
residual electricity is still residing
in the Filter Cell. So, the FIRST
thing to do is ground the voltage
side of the cell. To do this take a
Philips screw driver with an
insulated handle and touch both
the cell side and the ION Bar. This
will dissipate any residual charge.
Remove the ground screw. The
ground screw secures the filter
cell and provides the ground
needed to allow the filter cell to
function properly
Slide the cell out slowly, The Cell
Power Line is on the left hand side.
With the Cell partially out remove
the Power Line Plug. by
disconnecting from the Cell Power
Lug. Then remove the cell from the
air purifier.
To re-install: reverse these steps,
be sure that the power line is with
the cell frame and avoid crimping
the power. Line

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UVGI Filter
The UVGI (ultra violet germicidal irradiation) filter sits behind the main filter and is
surrounded on both sides by carbon filters. The carbon filters serve 2 purposes to 1. Remove
gasses and odors from the air and 2. Block UVC rays from escaping the unit. Carbon absorbs
the UVC energy making it harmless to people and pets. It is imperative that you always have
carbon filters on both sides of the UVGI filter. If there is no carbon filter to help block the
UVC rays some of the rays may escape and cause a danger to people and pets. We test each
unit for UVC ray leakage before shipping.
UVC Bulb Replacement
The UV Bulbs have a useful life of about 9000 hours. They should be replaced every year, While
the bulbs may continue to function, they will do so at a less efficient rate. To remove the bulb
rotate them 90 degrees and remove from the UV Cell Fixture. Reconnect power wires and slide UV
Cell Fixture back into the air purifier.
UV Bulb Replacement
UVC lamps should be treated in the same manner as other mercury-containing devices, such as
fluorescent lamps. Some lamps may need to be treated as hazardous waste and not discarded
with regular waste, although low mercury lamps may be an exception; however, check state
and local codes for proper determination. The U.S. EPA’s universal waste regulations allow
users to treat mercury lamps as reg-ular waste for transport to a recycling facility (EPA 2018).
This sim-plified process was developed to promote recycling. The National Electrical
Manufacturers Association maintains an online list of companies claiming to recycle or handle
used mercury lamp s (NEMA 2009). The most stringent of local, state, or federal regula-tions
for disposal should be followed.
UV Bulb Replacement
UV Bulb & Ballast Disposal

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Special Warnings
This product utilizes UVC Bulbs to provide microbial sanitation. The light
waves are invisible to the human eye but are extremely dangerous. This
unit must be run with all safety devices and switches in working order. Do
NOT By-Pass any safety measures.
This unit must be run with both carbon filters in place. The carbon filters act
as an additional shield from wayward UVC rays.
Caution: Ultraviolet energy.
Protect eyes and skin.
Hazards of Ultraviolet Radiation to Humans
UVC is a low-penetrating form of UV compared to UVA or UVB.
Measurements of human tissue show that 4 to 7% of UVC (along with a
wide range of wavelengths, 250 to 400 nm) is reflected ( and absorbed in
the first 2 μm of the stratum corneum (outer dead layer of human skin),
thus minimizing the amount of UVC transmitted through the epidermis
Although UV is far more energetic than the visible portion of the
electromagnetic spectrum, it is invisible to humans. Therefore, ex-posure
to ultraviolet energy may result in transient corneal inflam-mation, which
can go unnoticed.
Ocular damage generally begins with photokeratitis (inflamma-tion of the
cornea) but can also result in photokeratoconjunctivitis
(inflammation of the conjunctiva [ocular lining]). Symptoms, which may
not be evident until several hours after exposure, may include an abrupt
sensation of sand in the eyes, tearing, and eye pain, pos-sibly severe.
These symptoms usually appear within 6 to 12 h after UV exposure, and
resolve fully within 24 to 48 h. Acute overexpo-sure to UVC radiation may
cause some incapacity due to eye dis-comfort, but this generally abates
after several days, leaving no permanent damage.

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Filter cleaning and replacement recommendations.
Filter and Bulbs listing
Filter / Kit Part# Replace/Clean
Standard HEPA filter # 499180 Annually
UVGI HEPA Filter # 499176 Annually
MERV 15 Media Filter # 499097 Annually
Pre Filter # 490052 Annually
Standard Carbon Filter # 499075 3 months
Cannablend Filter # 4991463 months
Electrostatic Filter Cell # 101213
UVGI Carbon Filter Kit # 499115
3 months
6 months
UVGI Bulb Kit # 400109 Annually
Note:
HEPA and Media filters should be replaced more often in smoking areas
Carbon filters should be replaced when odors re-appear
Electrostatic filter cell should be inspected to see when dirty
NEVER OPPERTAE UVGI WITHOUT CARBON FILTERSS
Return Shipping
Your MAX-Guard air purifier was designed to be easily repaired. This design should allow the
average user to make repairs to continue long life of the product. We will gladly work with you
to keep your air purifier running like it should. In the unlikely event you need to return your
unit for repair or any other reason there are steps you must take.
1. Units must have a Return Merchandise Authorization Number. You can obtain one by
calling (262-632-1000) or email [email protected]. We will send you a RMA form
which MUST be fully filled out. Shipping a unit to the factory without a RMA form and
number will likely result in extra charges and or delays in repairs.
2. All MAX-Guard models must be returned in a box that is strapped to a shipping pallet.
Failure to do this will almost certainly cause the unit to be damaged in shipment and you
will be charged for those repairs. It is vital that you take great care in packaging the
returned unit. We advise strongly that you insure your returned unit with the carrier that
you choose.

Capacity........................................................... 300-1500 cfm
Standard HEPA Filter. .............................. 4.5 inch mini pleat
UVGI HEPA Filter...................................... 2.4 inch mini pleat
HEPA Efficiency.................................... 99.97% to 0.3 micron
Electrostatic Precipitator ................................ 4.5 inch / 5kv
Cell Collection Area....................................... 5000 sq. inches
Electrostatic Efficiency.............................. 97% to 0.1 micron
MERV 15 Media .................... High Capacity 4 inch Mini Pleat
MERV 15 Efficiency .................................... 95% to .3 micron
UVGI................................................. +1000 μJcm² UVC dose
Lamp Life .............................................. 9000 hours / 1 Year
Blower Life Expectancy.................................... 60,000 hours
Carbon Filter.................................... 2 chamber / 1050 gram
inches Unit size.................................................. 26 x 22 x 14
Shipping size...................................................... 24 x 16 x 40
Unit weight................................................................ 60 lbs.
Shipping weight......................................................... 75 lbs.
Power usage................................................. 200 - 400 watts
Sound level........................................................ 38- 65dB(A)
Power............................................ 120v, AC/60Hz/ 3.5 amps
Variable speed control..................................... Low to Turbo
Cabinet finishes.............................................. Black & White
Warranty....................................................... 7 Year Limited
Specifications
Wiring Diagram
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Positioning Your MAX-Guard
There are several things to take into consideration when choosing where to place the MAX-Guard
in the room. While the unit will draw in a large quantity of air it will not necessarily move air on the
far end of a large room. If you are using your air purifier to control smoke, you will want the unit
close to the source. As much air as the unit takes in, it also expels the same amount of air. Placing
the air purifier next to a chair may create an undesirable draft. It will likely take several attempts to
find the right place for unit placement.
In the drawing above the MAX-Guard is placed in the Great Room near a return vent. This will
help keep the air in the entire home clean. As the return draws in freshly cleaned air it
distributes the air throughout the entire home
Things to keep in mind when choosing the best place for your air purifier:
1. Do not block the intake in front of the unit.
2. Place the unit is a way that air from the room flows to it
3. Add a low volume fan to help with room air circulation.
4. Place the unit near the source of indoor air pollution.

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Washing Your Electrostatic Filter
Your electrostatic filter gathers smoke, dirt and other particles from the air. These
particles are bonded to the filter plates by a strong electromagnetic force. As these
particles build up the filter becomes less efficient. It is important to clean the filter
on a regular basis. There are 2 basic ways to wash your electrostatic filter. The
easiest is in your dishwasher. We were able to fit th MAX-Guard filter cell in to a 20
year old portable dishwasher with little difficulty
Wash the cell by itself or with the prefilter. Do not run through the wash cycle with regular
dishes. Be VERY CAREFUL to not bend the aluminum plates. In our tests we could safely set
the cell on the dishwasher basket tines.
The other option is to soak the filter cell in a tub of very hot water. In both cases uses the
hottest water possible. Be sure to user an aluminum safe detergent. A strong emulsifier will
help to more quickly breakdown the film on the collection plates. Soak the filter for 20-30
minutes. In case of super dirty filters you can buy our LA-99 Cell cleaning solution. You can
order LA-99 from us or your re-seller. Part# 499066
After your electrostatic filter cell is clean, inspect it for broken or missing wires. Inspect the
cell plates for bent plates. The cell plate are thin high grade aluminum and can be easily bent
back into the proper position. Let the cell dry fully before you put it back into your
MAX-Guard.

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Trouble Shooting

LakeAir ELECTRONIC AIR CLEANERS 7
YEAR LIMITED WARRANTY
The LakeAir MAX-Guard Air Purifier is warranted by RK Ventures Inc. to the original
purchaser to be free from defects in material and workmanship under normal use and
service for a period of seven years from the date of purchase. The blowers of the LakeAir
MAX Guard is warranted for (1) year from the date of purchase to the original purchaser. A
extended blower warranty is available for purchase and extends the warranty to 7 years.
LakeAir’s liability is to be limited to repairing or replacing such products during the warranty
period at its option, providing the product is sent prepaid to RK Ventures, Inc. or an
Authorized Service Center and is deemed to be defective in part or portion to the
satisfaction of RK Ventures, Inc.
This warranty is in lieu of any other warranty expressed or implied and of all other obligations
or liabilities in connection with the sale of the described LakeAir Electronic Air Cleaner. In no
case will any claim for consequential damages or labor expenses be allowed. This warranty
does not apply to a LakeAir Electronic or any part thereof which has not been operated in
accordance with the operating instructions herein contained; where components or other
accessories not compatible with the LakeAir Electronic Air Cleaner have been used or attached
to it; which has been subject to accident, unauthorized alteration, abuse, damage by flood, fire
or acts of nature.
User’s Responsibility:
1. To operate and maintain according to instructions.
2. Regularly replace filters and cleaning of the unit including electrostatic filters. Failure to
replace filters or clean the unit will void the warranty.
3. Use product controls in accordance with owner manual and maintain them or warranty
will be voided.
4. Provide adequate electrical service, within voltage ratings that are indicated on the unit
rating plate. Provide electrical protection devices to protect unit from voltage surges. Failure
to provide proper electrical service or safety devices will result in warranty being void.
Damage not covered by Warranty:
5. Damage occurring during transportation or resulting from improper handling is not
covered by the warranty.
6. Damage due to accident, alteration or tampering is not covered by the warranty
7. Misapplication of the product or use for purposes other than cleaning ambient air will
void all warranties.
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