olid solid;
padding-top: 1pt; padding-left: 4pt; padding-right: 4pt; padding-bottom: 1pt;
">Edit guide specification to include only information specific to your
project. Delete or add text, select appropriate bracketed phrases, and
fill in blanks as required. Go to Berner catalog or website to select
specific models and sizes required for project and to obtain data necessary
to edit this document.

Coordinate specification with information shown on project drawings
and schedules. In general, drawings indicate locations of air doors
and switches and special mounting requirements, while sizes and capacities
of air doors and utilities are described in specifications or schedules.
Cross check mechanical and architectural drawings.

Guide specification is available in word processing format at www.berner.com.
Turn on Hidden Text function in your word processor to display Specifier
Notes.

For additional information or name of Berner representative in your
area, call Berner International Corporation at 800-245-4455 in U.S.
or 800-242-4455 in Canada, or visit www.berner.com.

PART 1 GENERAL

1.1 SECTION INCLUDES

If anther term is used instead
of air door, such as air curtain or door heater, make change throughout
specification and coordinate with drawings.

A. Air doors.

1.2 RELATED SECTIONS

If switches for air doors
are mounted on door frames, list of related sections to facilitate coordination.

A. Section [08100 - Metal Doors
and Frames] [08300 - Specialty Doors] [______-__________]: Coordinate
installation of switches.

Include following if air
door cabinets are field painted. Protect electrical contacts from paint.

B. Section 09900 Paints and Coatings:
Field applied finishes.

Note that electrical connections
should be flexible.

C. Division 16 Electrical: Connection
of electrical service and controls.

1.3 REFERENCES

A. NEMA
250 Enclosures for Electrical Equipment.

B. UL
507 Electric Fans.

1.4 SUBMITTALS

A. Submit
under provisions of Section 01300.

B. Product
Data: Manufacturer's descriptive literature and installation instructions;
indicate options specified.

C. Shop
Drawings: Submit if required to show configuration of non-standard units
and additional installation instructions not shown in Product Data.

D. Quality
Assurance Submittals: Indicate compliance with QUALITY ASSURANCE.

E. Closeout
Submittals:

1. Operation and Maintenance
Data: Manufacturer's printed instructions for operating and maintaining
air doors.

2. Warranty Documents: Issued
and executed by manufacturer.

1.5 QUALITY ASSURANCE

A. Manufacturer
Qualifications:

1. Firm shall have produced
products providing satisfactory use in similar service for not less
than five years.

2. Products shall be manufactured
and assembled in United States of America.

B. Regulatory
Requirements: Products shall comply with UL 507 and other applicable
Underwriters Laboratory (UL) or Canadian Standards Association (CSA)
requirements.

1.6 DELIVERY, STORAGE,
AND HANDLING

A. Store
in manufacturer's unopened packaging until installation.

B. Store
in dry, heated area prior to installation.

1.7 WARRANTY

A. Manufacturer's
Warranty: Supply manufacturer's standard [two-year limited warranty
for heated units] [and] [five-year limited warranty for unheated units]
against defects in workmanship and materials.

PART 2 PRODUCTS

2.1 MANUFACTURERS

A. Acceptable
Manufacturer: Berner International Corporation, New Castle; PA, Tel: 800-245-4455
(U.S.), 800-242-4455 (Canada); Fax: 724-652-0682; email: airdoors@berner.com;
website: www.berner.com.

Edit following and coordinate
with Instructions to Bidders and Division 1 requirements.

B. Substitutions: [Not permitted.]
[Requests for substitutions will be considered in accordance with provisions
of [Instructions to Bidders.] [Section 01600.]]

2.2 AIR DOORS

A. Acceptable
Products: Berner Model FS.

B. Construction:
Provide factory assembled units of sufficient structural strength to
be supported from ends without intermediate support. One pair of heavy
duty mounting brackets shall be included. Mounting brackets shall permit
adjustment of air stream discharge angel of ± 20° degrees.

C. Motors:
1,725 RPM, totally enclosed air over (TEAO) direct drive motors.

D. Fans:
Fans shall be 24 inches diameter, four blade propeller type with inlet
venturi.

E. Discharge
Nozzle:

1. Nozzle provides uniform velocity
across width of air stream

2. Aperture: 5.00 inches (127
mm) slot by width of air door.

F. Inlet:

1. Location: Top.

2 Screen: Fan guard.

3. [Weather Hood: Steel. Provide
one per fan.]

G. Casings:
Minimum 14 gage [galvanized steel with [beige][________] colored baked
enamel finish][stainless steel], all welded construction. [Fasteners
shall be tamper-resistant type].

2.3 CONTROLS

A. Control
Panel:

1. UL listed, industrial type,
prewired, with UL-listed components consisting o