Fresco 3500 User manual

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User Guide
Air Purification Unit

Please read all of the information provided in this
user’s guide before operating your new air unit.
WARNING
This air unit is not a medical device. Do not stop or alter
any medical therapy programs or medications without the
advice of your physician. Excessive ozone concentrations
may cause mucous membrane or respiratory irritation.
CAUTION
This "bolt of lightning" indicates that uninsulated mate-
rial within your unit may cause an electrical shock. For
the safety of everyone, do not remove product covering.
This "exclamation point" calls attention to a feature for which
you should read the enclosed literature carefully to prevent
operating and maintenance prob-lems.
RISK OF ELECTRICAL SHOCK DO NOT OPEN
Caution: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE
BACK COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING
TO QUALIFIED SERVCE PERSONNEL.
produced by the burning of fossil fuels. When ultraviolet rays
from the sun strike hydrocarbons, 03is one of the by-products.
Ozone is easily detected and is sometimes used as a reference
point for the level of pollutants.
Q. How does it compare to air filters?
A. Fresco does not rely on the air to actually pass through the ma-
chine to be cleaned like air filters. It's not a filter at all. Fresco pro-
duces both activated oxygen which reduces odors and negative
ions which settles out particulate.
Q. Is ozone safe?
A. Yes, but moderation is the key. Ozone in very high concentra-
tions can be irritating to mucous membranes and the respiratory
system. We recommend you set the Square Feet dial properly.
The three different models equate to the approximate size of
space to be purified. Before using the Fresco you should read the
enclosed instructions carefully. Refer to Using a Timer section.
Q. Where should I place the Fresco in my
home or office?
A. The Fresco should be placed in the room where you have the
most pollutants. The Fresco is easy to move so you might want to
try it in a couple of locations to help decide what works best for
your environment. An elevated location is better to distribute ions
and activated oxygen more evenly.
Q. How long will the Fresco last?
A. The Fresco is made of stainless steel and solid wood construc-
tion. Because of the quality material and superior craftsmanship
that goes into each Fresco you will enjoy it for many years.
Q. Is it difficult to install?
A. No. Just plug it in and set the dial for the area you will be treat-
ing. Install the Fresco in any room, but try to find a place where it
can be up off the ground four feet or more. Some customers prefer
to have more than one unit to better control levels of activated
oxygen in the home.

Q. What does theFresco do?
A. It treats the air in your home or office by breaking down odor
causing pollutants and dropping airborne particulate from your
breathing space.
Q. How does the Fresco treat the air?
A. The Fresco produces ozone and negatively charged ions, the
same effective cleansing agents that nature uses to treat outdoor
air.
Q. How does the Fresco work?
A. It is a two-stage process
The Fresco uses a needlepoint ionizer to drop dust,
smoke, and other harmful particles from the air we
breathe. In our homes and offices there is a lack of
negative ions and an abundance of positive ions. The
buildings we spend most of our time in block out the
natural occurring negative ions. The Fresco recreates
the natural balance of positive to negative ions to sig-
nificantly re-duce airborne particulate.
The Fresco uses electricity to split oxygen 02molecules
into single 01atoms, which attach loosely to other 02
molecules to be-come 03(activated oxygen). This loosely
attached oxygen atom is unstable and seeks to bond with
chemical compounds and other odor causing pollutants
in order to oxidize them.
Q. How does nature produce ozone?
A. Ozone is created electrically during active thunderstorms.
The electrical discharge creates a fresh sweet smell. The ultra-
violet rays of the sun striking hydrocarbons in our atmosphere
also creates ozone.
Q. How does nature produce ions?
A. Waterfalls, lightning, and the waves of the ocean all create
negative ions.
Q. What is an ozone alert?
A. Ozone alerts in cities are a result of the high pollution levels of
hydrocarbons
COMMONLY ASKED QUESTIONS
Congratulations...on your purchase. You have ob-
tained a state-of-the-art air purification system with
stainless steel construction and solid wood cabinetry.
Regardless of your color choice, the cabinet has been
hand crafted to fine furniture standards. Only the fin-
est materials surround the finest art purification tech-
nology. We Hope that you will enjoy your purchase for
years to come.
Read ALL instructions carefully
Before using this product.
FOR YOUR RECORDS
Please record the model and serial number below, for easy refer-
ence, in case of loss or theft. These numbers are located on the
back panel of your air purification unit. Space is also provided for
the other relevant information.
Model Number
Serial Number
Date of Purchase
Purchased From
Thank you from all of us at Fresco!
10 Day Money Back Guarantee!
*25% restock fee if returned after 10 trial period

Ionizer ON/OFF
& Fan Speed
On/Off control switch activates needle-
point Ionizer and controls the fan speed.
Ozonator
Square Feet
Adjusts ozonator by square footage of
treatment area. Number displayed on dial
is a suggested starting point. The unit
should be adjusted to meet user needs and
sensitivities.
Fan Grill Removable fan grill. Wash with warm
soapy water, dry completely before replac-
ing. (Unplug unit before removing)
PART FUNCTION
Control for the negative ion generator is from the activated oxy-
gen control. Negative ions can be created around the clock to
keep down dust and particulate.
Ozone or activated oxygen is normally kept at modest levels in
occupied spaces. To remove heavy odors, the units may be ad-
justed to a higher level for a period of time. Some use a timer to
completely deodorize the home or office while away. Unused O3
reverts back to O2 in about an hour.
Activated Oxygen
Control Knob
Understanding the Model 3500 Air Purifier
(Front View)
Ionizer ON/OFF
& Fan Speed
Fan Grill
If you suspect a problem with your unit check the following:
 Make sure plate is clean (see above).
 Unit is plugged in properly and turned on.
 Check the fuse to make sure it is installed properly and
not burned out. To replace fuse, push in and turn fuse
holder to the left, remove old fuse, replace with spare. Use
1 amp fuse, 1.25 inches long.
 Wall outlet is active.
 Check plate alignment, making sure the ceramic plate is
almost flush with back of unit.
 It important that the Fresco be properly grounded to
avoid potential shock.
If the fan is not operating or no buzzing sound is detected on the
high setting of the Ozonator dial, call the Warranty Service
Number listed on the back of unit.
Caution: No attempt should be made to remove the
back panel of the unit, as there are no user serviceable
parts. Opening the unit will void all warranties.
When the purifier no longer produces enough ozone to be effective, the
ozone plate should be cleaned. A good rule of thumb is every three
months. Some environments cause ozone output to be reduced in a
shorter time but other environments may take longer.
To clean a plate, first turn the unit Off and unplug from outlet. Then re-
move the 4"x4" plate or plates from back of unit. Pull plates firmly in the
center to remove from the slot. With plate firmly supported in the hand,
wash plate with warm soapy water or a grease cutting detergent. Scrub
with stiff brush if necessary. Be careful not to drop the plate or scrub off
the silicon. Clean both the metal screen and the ceramic tile. Rinse plate
in hot water and dry completely before installing. If available, you may
use a hair dryer to dry the plate. Reinstall plate, making sure it is secured
and flush with the back of the unit. Plug unit into a grounded 110 electrical
outlet, turn unit on and start enjoy-ing clean fresh air.
To clean needlepoint ionizer, first turn Off and unplug from outlet. Re-
move the fan grill cover. The needlepoint ionizer will be easy to find in
front of the fan by looking for two pieces of wire. Take a q-tip or cotton
swab dipped in alcohol and clean any dirt that may have accumulated on
the needlepoint's. This process may be done when plates are being
cleaned. While you have the front grill cover off the unit you may also
clean the fan and the grill itself. To clean the fan simply wipe the blades
with a damp cloth or vacuum. The grill cover may also be cleaned with
warm soapy water. Be careful that the fan grill cover is completely dry
before reinstalling.
TROUBLESHOOTING
CLEANING & MAINTENANCE

Your air unit comes with a 3 year limited warranty from the date of
original purchase. Refer to enclosed warranty card for complete
details. Please complete and return the warranty registration card
within ten days of date of purchase in order to activate your war-
ranty.
WARRANTY
Should you determine that your air unit requires service, please call
the 877-224-1447 as listed on he back panel of the unit.
 Homes & living areas
 All types of offices & stores
 Water & fire damaged areas
 New paint, wallpaper & paneling
 Odor clean-up
 "Sick" buildings
 Hospitals & nursing homes
 Veterinary offices
 Smoking areas
 Hotel rooms
High pollen environment
New carpet & furniture
Kitchens
 Attics & basements
 Laundry rooms
 Doctors' offices
 Day care centers
 Stables & aviaries
 Locker rooms
 Restaurants & bars
WHERE TO.USE?
Some users who are sensitive to ozone set their units up on a timer
so that the purifier does its work only when they are away from
home. This allows for a higher setting and higher concentrations
which can be more effective for purging purposes. The ozone will
normally dissipate in less than an hour after the purifier is turned
off. Simple timers plug into an outlet and are available at hardware
and variety stores.
USING A TIMER
SERVICE
* 25% restock fee if returned after 10 day trial period
Plate receiver slot Allows insertion and removal of ce-
ramic plates for cleaning.
Fuse Holder Houses removable fuse.
(Spare fuse included, 1 amp, 1.25 inch)
Power Cord 110 Volt grounded cord (unless other-
wise specified). DO NOT bypass
ground.
Ceramic Plates Removable ceramic plates. Wash with
warm soapy water. Rinse and dry com-
pletely before replacing.
PART FUNCTION
Understanding the Model 3500 Air Purifier
This unit must be provided with an
electrical ground at all times!
(Back View)
Power Cord
Ceramic Plates
Plate receiver slot
Fuse Holder

OPERATION/INSTALLATION
 Start with the Fresco on its lowest Square Feet setting and turn the Ozona-
tor dial “up” as necessary. The ideal amount of activated oxygen will leave
your room smelling clean and fresh. If the unit is set too high, you will
smell the ozone. If it set too low, you will smell household odors.
 The lonizer is designed to run independently from the activated oxygen
production. The ionizer can be used around the clock to keep down dust
and particulate. Ozone, however, should be kept at modest levels in occu-
pied spaces. Ozone’s primary application is to control odors. The level of
ozone may be adjusted according to the severity of the odors in the home
or office. Many users put the purifier on a timer so it can run at high levels
while being away. The timer is set to cut off about one hour before the oc-
cupants are scheduled to return. The O3, that is not used normally reverts
back to O2 in about an hour. When they arrive the air is fresh and clean.
 Individual sensitivity to activated oxygen and preference may vary and
should be adjusted accordingly. The effect of activated oxygen on indoor
air may vary according to atmospheric and/or environmental conditions
such as altitude, humidity, air movement, severity of existing odors, house
design, and square footage.
 If you desire to treat the entire home with the same level of ozone, set the
fan switch on your home’s heating & cooling system to the ON position
rather than AUTO. Open all interior doors and adjust the activated oxygen
level to the appropriate square footage. Then place the unit so the air from
the purifier flows directly into a air return vent.
 Altitude: Generally, in higher altitudes the requirement for activated oxy-
gen decreases. Therefore, higher altitudes should require lower settings.
 Humidity: Generally, in higher humidity the requirements for activated
oxygen increases. Therefore, increased humidity may require higher set-
tings.
 For optimal treatment of air in your designated area, your new air purifica-
tion unit should be placed in a central location (higher is better). Your unit
can be set on a tall piece of furniture. Allow three inches between the back
of your unit and the wall to allow proper airflow. Fan speed is normally set
in the medium range. The reason for elevated placement of the unit is that
activated oxygen is heavier than air. Elevated placement allows for better
circulation. It is suggested that the purifier be placed in the room that is
close to the primary source of odor.
DETERMINE YOUR SQUARE FOOTAGE
Here’s how to determine the Square Feet Setting for your home or office:
 Measure total area of each room to be treated.
 Add area of room(s) together for total area to be treated. Note: If doors
are open to another room, add that area also. Measure total enclosed
area.
 The customer may use more than one Fresco Air unit in order to better
control levels of activated oxygen in different areas of your home or
office.
 The concentration of ozone will be higher in the immediate area of the
unit.
Example: To determine the total square feet of area to be treated.
Warning: Excessive ozone concentrations may cause mucous
membrane or respiratory irritation and can be harmful.
375+500=875 square feet 300+400+600+800=2,100 square feet
15’
25’
375
Square
Feet
500
Square
Feet
600
Square
Feet
300
Square
400
Square
Feet
800
Square
Feet
15’
20’20’
40’20’
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