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WHISPURR
AIR (UNHEATED)
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ENERGY
SAVING AIR CURTAIN
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LOW
PROFILE AIR CURTAIN FOR COMMERCIAL APPLICATIONS
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CUSTOMER
ENTRANCE DOOR
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PASS-THROUGH
WINDOW
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WALK-IN
FREEZER
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Air
curtains prevent air from entering a conditioned environment
such as a heated or air conditioned room. By
generating an evenly distributed laminar air flow over
an entryway, air curtains seal in heated or refrigerated
air and
repel wind borne contaminants such as dust, fumes and
pollutants. Save energy by preventing air conditions.
Whispurr Air® air curtains provide an ideal, cost-effective
solution in places where an entrance door or service
window is continually in use or left open for extended
periods of time. |
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| Whispurr
Air® air curtains must be installed inside heated
or air conditioned buildings. |
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•
Simple, fast installation
• 7 1/2" Low profile design ideal for restricted
ceiling height
• Specially formulated PolyMars® housing
material
• Variable air velocity and directional controls
• Low sound level while maintaining high air
velocity
• Largest unit (6') weights less than 28 pounds
• Custom colors available - white is standard
• Air Doors air curtain - proudly made in the
USA since 1962
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Installation
example:
school cafeteria serving door.
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Adjustment
of air flow for
dust, pollutants and fumes.
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Adjustment
of air flow for
climate control, coolers and
freezers.
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| Voltage
must be specified when ordering. |
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Standard
Features: All units
have a variable air velocity
control switch with on/off
operation. Standard
production color is white. |
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| Model
number designates length of unit in inches. |
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| All
models listed below have high impact polymars housings.
Production Color: White |
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Whispurr
Air Models - Installed over customer entrance doors
with ceiling as low as 8 inches to top of door header.
Also mounted over Walk-in Coolers, Freezers and pass
through Windows. Add Micro Switch if needed for automatic
on/off control. |
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PRICING
AND SPECIFICATIONS (UNHEATED
MODELS)
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Model No. |
Length |
Max Ft per Minute at Nozzle |
Max Cubic Ft per Minute |
Amps Single Phase |
Sound Level dBA Measured 10 Ft. from Nozzle |
Door Heights |
Weight |
Price |
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115V |
230V |
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WA 36 |
36" |
1800 |
900 |
2.4 |
0.9 |
49 |
Up to 7' |
16 lbs |
$726.00 |
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WA 42 |
42" |
1800 |
1050 |
2.4 |
0.9 |
50 |
Up to 7' |
19 lbs |
$759.00 |
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WA 48 |
48" |
1800 |
1200 |
2.4 |
0.9 |
52 |
Up to 7' |
22 lbs |
$792.00 |
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WA 60 |
60" |
1800 |
1500 |
2.6 |
1.3 |
52 |
Up to 7' |
25 lbs |
$825.00 |
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WA72 |
72" |
1800 |
1800 |
2.6 |
1.3 |
53 |
Up to 7' |
28 lbs |
$1,045.00 |
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| Note:
No control panel is needed for Whispurr Air Series. |
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| Options
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Door
Micro Switch for automatic on/off control. Activates
air curtain when door is opened, turns off when door
is closed |
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| TZ6112
Combination Micro Switch (Both Plunger/Roller all
in one)..........$66.00 |
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| Walk-in
Installation Kit (with transformer & Magnetic
Switch).................$165.00 |
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WA
Whispurr Air Low Profile Commercial Models
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Model No. |
Overall Length (A) |
Nozzle Length (B) |
Mount Plate Length (C) |
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WA 36 |
36 1/2" |
36" |
39 1/2" |
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WA 42 |
42 1/2" |
42" |
45 1/2" |
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WA 48 |
48 1/2" |
48" |
51 1/2" |
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WA 60 |
60 1/2" |
60" |
63 1/2" |
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WA 72 |
72 1/2" |
72" |
75 1/2" |
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TYPICAL
INSTALLATION
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1.
Install mounting plate using
the pre-drilled holes.
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2.
Attach cabinet to mounting
plate using the two keyhole
slots. |
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3.Install
optional micro-
switch(s) to door header. |
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4.
Plug in unit using the 3-wire
cord/plug supplied. |
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Junction Box only used with
optional microswitch(s). |
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Properly
Installed Air Curtains Cut Cold Air Loss and Reduce
Humidity
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APPLICATIONS:
Coolers * Freezers * Cold Storage * Air Conditioning
* Climate Control
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The
purpose of the Air Curtains can reduce the rate of the
heat and moisture flow through an open refrigeration
door
60 to 80%. This is the finding of the first major impartial
survey. Research was made possible through the Refrigerated
Research Foundation and the University of Illinois. |
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| Properly
installed Air Curtains can reduce the rate of the heat
and moisture flow through a cold storage building. These
doorways are subjected to wind pressure changes that
permit air to blow through the building. If this type
of installation is required, opposite doors should not
be opened at the same time. |
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of the Air Curtain is associated with three sources
of pressure that will retain the cold air by: |
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1. |
Self-generated
pressure evolves from a non-circulatory type of Air
Curtain because the jet induces ambient
air into the stream. When the Air Curtain is installed
on the outside of a cold room, the air spills back into
the room and continues to do so until the pressure builds
up to such a point that the air stream deflects to
the outside. |
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2. |
The
pressure form stack effect evolves when the cold air
in the room is denser than the warmer outside air.
The higher the ceiling, the higher the pressure becomes
inside the cold room. Therefore, the velocity of the
Air Curtain should be sufficiently high to compensate
for the outward pressure at the lower part of the cold
room. |
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3. |
Wind
pressures occur because of the conversion of the velocity
pressure in the wind into static pressure.
Of particular significance is the stability of the Air
Curtain, which is directed by its outlet momentum. The
curtain of air must be able to withstand pressure variations
between the inside and the outside of the cold
room. The outlet momentum should be sufficiently sustained
and strong enough to stabilize the air at the
floor. Therefore, it is essential to incorporate in
the design of the Air Curtain, controls that increase
the
strength of the velocity to ensure a stiff curtain of
air and, decrease the velocity to prevent unnecessary
heat and moisture transfer at the door. |
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summary, the following observations are deemed more
significant for optimum efficiency: |
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1. |
The
turbulence intensity should be as low as possible, but
sufficiently high to generate enough velocity to
barely reach the floor and divide as equally as possible. |
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2. |
The
direction of the Air Curtain should be inclined slightly
toward the warm side for minimum heat transfer. |
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NOTE: |
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In
refrigeration, a high volume of air hitting
the floor is not necessary. We suggest the
airflow be adjusted so that it barely hits the
floor. Turbulent air at the floor level will
tend to form ice on the floor of freezers. |
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Adjust
air louvers to obtain desired velocity. |
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To
compensate for drafts, adjust
directional controls until airflow is
VERTICAL. The Air Curtain may be
mounted on either the warm or cold side
of the cooler with equal effectiveness. |
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DO
NOT MOUNT THE AIR
CURTAIN IN THE FREEZER. |
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When
using the Air Curtain to prevent
cold winter air from entering the building,
the units must be installed on the warm
side. |
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Whispurr
Air, Air Curtain, Air Curtain Door, Air Curtain Heater,
Air Curtains, Air Doors, Door Air Curtains, Heat Curtains,
Mars Air Curtain, Mars Air Door, Warm Air Curtains,
and Insect Barrier from your source for material handling
equipment. |
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