NSF ANSI 37:2017 pdf download.Air curtains for entranceways in food and food service establishments.
Equipment covered by this Standard includes, but is not limited to, air curtains for entranceways in food and food service establishments (e.g.. service and customer entries, service windows, cooler and cold storage entries). Housing, air moving equipment, air directional regulating devices, and other appurtenances to the air curtain are included.
NSF ANSI 37 does not establish equipment installation requirements. While the requirements of this Standard are intended to ensure that equipment may be installed in a sanitary manner, proper installation of equipment shall be governed by the applicable codes.
Equipment components and materials covered under other NSF or NSF/ANSI Standards or Criteria shall also comply with the requirements therein. This Standard is not intended to restrict new unit design, provided that such design meets the minimum specifications described herein.
1.3 Alternative materials, design, and construction
While specific materials. design. and construction may be stipulated in this Standard. equipment that incorporates alternate materials, design. or construction may be acceptable when such equipment meets the applicable requirements herein.
1.4 Measurement
Decimal and SI conversions provided parenthetically shall be considered equivalent. Metric conversions and
significant figure rounding have been made according to IEEE1ASTM SI 10.
2 Normative references
The following documents contain provisions that, through reference, constitute provisions of this NSF/ANSI Standard. At the time NSF ANSI 37 was balloted, the editions listed below were valid. All documents are subject to revision, and parties are encouraged to investigate the possibility of applying the recent editions of the documents indicated below. The most recent published edition of the document shall be used for undated references.
NSF/ANSI 51. Food equipment materials
NSF/ANSI 170. Glossary of food equipment terminology
IEST-RP-CCO13, Institute of Environmental Sciences Recommended Practice
3 Definitions
3.1 air curtain: A device that delivers a vertical stream of air across an opening for the purpose of keeping
tempered air from moving out of the building and insects from moving into the building.
3.2 air curtain protected openings:
3.2.1 customer entry: Exterior passage for entrance into an establishment primarily intended for customers
3.2.2 service entry: an exterior passage for entrance into an establishment primarily intended for employees and the delivery of supplies.
3.2.3 service window: an exterior opening in the wall of an establishment primarily intended to pass finished goods to customers.
3.3 airstream: The directed flow of air generated by an air curtain assembly.
3.4 airstream discharge nozzle: The slot from which the airstream exits the air curtain assembly.
3.5 maximum effective airstream height: Manufacturer specified value indicating the maximum height of the airstream in compliance with the applicable performance test protocol in section 6. This value is measured from the bottom of the airstream discharge nozzle.
3.6 maximum effective airstream width: Manufacturer specified value indicating the maximum width of the airstream in compliance with the applicable performance test protocol in section 6.NSF ANSI 37 pdf download.