PuriFresh®
CLEAN ROOM
INSTALLATION MANUAL AND OPERATING INSTRUCTIONS
CAUTION:
READ AND UNDERSTAND THIS MANUAL THOROUGHLY BEFORE INSTALLING
OR OPERATING THE UNIT!
ElasTek,
Inc.
2
Chippewa Court
Madison,
WI 53711
Telephone: 608-238-2039
Facsimile: 608-238-0270
Internet
Address: www.purifresh.com
Made in the USA
I.
INTRODUCTION
Many people who suffer from allergies or asthma
would love to open a window to let in fresh air, especially in the spring and
fall. They don’t because of the
allergens in the outside air, which will induce allergic reactions, or even an
asthma attack. Instead, they sit with
their windows closed in stuffy indoor air.
Even with the windows closed, there is a small amount of infiltration of
outside air, even in the tightest new homes.
In older, leaky homes, there can be a substantial amount of outside air
entering with the windows closed. This
air contains outdoor allergens. While
running an air cleaner can reduce the amount of allergens, it cannot eliminate
them from the indoor air, as long as they are continually entering through
infiltration through cracks.
The PuriFresh® Clean Room forces HEPA filtered air into the room under pressure, reversing any flow of outside air through cracks. Since the PuriFresh® Clean Room uses a commercial grade single pass true HEPA filter, the air entering the room is completely scrubbed of all allergens, including mold spores. In addition, essentially all of the micron-sized particulates, generated by power plants, diesel trucks, etc., are removed. In many parts of the country, these particulates are at high enough levels to represent a health hazard, especially for vulnerable people such as the elderly or people with asthma.
|
Product Specifications: |
|
|
Maximum
Air Flow |
120
CFM (Cubic Feet per Minute) |
|
Maximum
Pressure Drop |
0.7
inches of water at cutoff (no air flow) |
|
Filter[1]
Performance |
99.97%
of 0.3 micron particles (true HEPA) |
|
Filter
Size |
12”
x 24” x 6” |
|
Overall
Size |
12”
x 24” x 15 1/8” (excluding connectors and latches) |
|
Weight |
30
pounds |
|
Power
consumption |
80
Watts (max.) |
|
Sound
level at 120 CFM |
Less
than 50 dB at 1 meter |
Inlet & Outlet Connectors |
Standard round 5 inch tapered connectors
|
II. INSTALLATION
We will describe installing and running the
PuriFresh® Clean Room using the optional Window Kit, sold
separately. The Window Kit is shown in
Figure 1, and it is intended for use in a double hung window only. If you have another type of window, contact
us before attempting to install the Window Kit.
Open the Window Kit and check to see
that you have the following:
1.
One
Fresh Air Intake.
2.
One
flexible 5-inch duct.
3.
One
black open cell foam gasket block 2” x 2” x 36”.
4.
Two
pieces of corrugated plastic board 8” x 12” x 3/16”.
5.
One
sash-retaining angle with screw hardware.
6.
Two
flat mending plates.
7.
Four
flat head and four round head wood screws.
For installation, you will need a
screwdriver, a utility knife, a ruler, and a small drill for making a pilot
hole.
Figure 1: The PuriFresh® Window Kit.
Before beginning installation of the
Window Kit, remove the PuriFresh® Clean Room from its box. Place it on the floor as shown in Figure 2,
in the approximate location it will go.
Plug it in to a three-pronged outlet directly. The use of an extension cord is not recommended. If the outlet is not three pronged, have a
qualified electrician convert it. We
strongly recommend that the outlet also be protected by a GFI (Ground Fault
Interruptor). Turn the unit on to check
that it has not been damaged in shipment.
Figure 2: The PuriFresh® Clean Room.
The Window Kit can be installed in any double hung
window with a width between 20 and 40 inches. DO NOT INSTALL IN A WINDOW
ABOVE A SIDEWALK OR ANYWHERE SOMEONE MAY BE BELOW WHO CAN BE INJURED OR KILLED
IF PART OF THE KIT OR A TOOL FALLS OUT DURING INSTALLATION. Open the window sash approximately 10
inches or more. Attach the fresh air
intake to the window sash using the two mending plates and the four flat head
screws as shown in Figure 3. Note: If
one of the corrugated plastic boards (see Figure 1) is wide enough to cover the
opening that remains, the fresh air intake can be placed to one side of the
window opening as shown in Figure 3. If
the window is too wide (greater than approximately 29 inches), position the
fresh air intake to be approximately centered in the window opening.
To make the process of attaching the
Fresh Air Intake to the sash easier, we suggest marking the screw positions
first with a pencil, then drilling pilot holes. Attach the mending plates to the Fresh Air Intake first, then to
the sash, or vice-versa.
Be sure to install the Fresh Air
Intake with the arrow on the label pointing up. This places the clear plastic hood over the opening on the
outside in the position that prevents rain from entering the opening.
Figure 3:
Attach the Fresh Air Intake to the window sash using the mending plates and
flat head wood screws, as shown. Be sure that the arrow is facing up.
Use the corrugated plastic pieces supplied
with the Window Kit to cover the open gap, or gaps on the side of the fresh air
intake. Measure the width of the
gap. Add an inch, then cut the
corrugated plastic piece to that width.
Place the cut piece with the two holes overlapping the Fresh Air
Intake. Use two of the round head wood
screws provided to attach the plastic piece to the Fresh Air Intake, as shown
in Figure 4.
Figure 4: Cut a corrugated plastic piece to cover the opening on the side, with a 1-inch overlap, then attach it to the Fresh Air Intake with two of the round head wood screws, as shown.
After the unit is in place
in the window, the sash-retaining angle, supplied with the unit, should be
placed as shown in Figure 5. The
sash-retaining angle prevents the window from accidentally being raised and
opening a gap. In addition to
maintaining a good seal, it reduces the likelihood of accidents involving
children or a break in.
Now take the foam gasket and insert
it as shown in Figure 5 between the sash and the upper window glass to seal
this opening. Cut off any excess length
of the gasket.
At this point, it is helpful to
apply some weatherstripping material to seal potential leaks. We suggest caulking cord, which resembles
modeling clay, since it can be easily removed and reapplied.
Figure 5: Attach the sash retaining angle and foam block.
Now,
as shown in Figure 6, attach the inlet of the PuriFresh® Clean Room
to the Fresh Air Intake of the Window Kit, using the 5 inch flexible duct
provided in the Window Kit. Bend and
stretch the flexible duct as needed, being careful not to damage it. For a better seal, we recommend using duct
tape, available at any hardware store.
Figure 6: Connect the inlet of the PuriFresh® Clean Room to the Fresh Air Intake of the Window Kit with the flexible 5 inch duct.
III. OPERATION
Close the door to the room, in which, the PuriFresh®
Clean Room is installed. Turn the unit
on and adjust the flow rate. The unit
does not have to be on its highest setting to work. To assure yourself that a lower flow is adequate, go on the other
side of the door, and feel the opening under the door for air leaving the
room. (If the opening under the door is
large, you may have to temporarily block part of it with a towel, or the like,
to better feel the air flow.) If you
have forced air heating and air-conditioning, close the registers in the
room. Supply heat and humidity to the
room in the winter using an electric heater and humidifier. Supply cooling in the summer with a room
air-conditioner. To reduce expense, use
as low a fresh air flow as possible, consistent with pressurizing the
room. Sealing leaks around the room
will help.
IV. MAINTENANCE
There is only need for maintenance
if you notice a poor flow of air emerging from the outlet of the PuriFresh® Clean Room with the blower at its highest
setting. If you do notice a poor flow
of air, first check the insect screen on the Fresh Air Intake of the Window
Kit. Remove the flexible duct from the
Fresh Air Intake to inspect the screen.
If it is clogged on the outside from a buildup of dust and debris, clean
it.
If there is still a poor flow of air,
release the latches on the PuriFresh® Clean Room and separate the unit as shown in Figure 7 below. Clean the pre-filter pad with a vacuum
cleaner. Reassemble the unit. Turn the unit on and check for leaks around
the rubber gasket. Check, in particular,
at the four places the four strips of rubber gasket join. If there are leaks at these points, use a
butter knife, or the like to push the foam rubber strips together. Do not disengage the latches. Typically, your bare lip is a good detector
of a small leak at these points.
If the flow of air is still poor
after cleaning the Window Kit insect screen and the pre-filter pad in the
PuriFresh® Clean
Room, the HEPA filter needs to be replaced.
Contact us about HEPA filter replacement and cost.
Figure 7: Opening the PuriFresh® Clean Room to expose the dirty side of the filter assembly. The pre-filter pad is shown partly removed from its Velcro® attachments.
V. IMPORTANT NOTES
To keep your room free of outdoor allergens and
harmful particulates, keep your PuriFresh® Clean Room on 24 hours a day. Do not turn it off when you leave the room!
The Window Kit is well designed to prevent rain from
entering the PuriFresh® Clean Room, however, we suggest that you
disconnect your PuriFresh® Clean Room from the 5-inch flexible duct
when there is sever weather, or a driving rain striking the window, in which,
the Window Kit is installed. If you suspect that water has entered the
intake of the PuriFresh® Clean Room, unplug it immediately and contact
us before attempting to use it again.
We welcome any comments or concerns you may have so that we can help you use our product most effectively.
VI. WARRANTY
The unit has a full one-year warranty on manufacturers
defects covering all parts and labor for repair. The warranty does not cover damage to the unit caused by the
consumer due to improper handling or installation. The warranty also does not cover damage to the unit when run in
unusually corrosive or dusty environments such as, for example, running the
unit in a room where wood floors or furniture or cabinets are being
sanded. If you are experiencing a
problem, first contact us by phone, mail of fax. If we can not assist you in solving the difficulty, we will make
arrangements to have it shipped to us for repair or replacement.