ASTM F2520-20

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F2520 − 05 (Reapproved 2012) F2520 − 20 An American National Standard
Standard Specification for
Reach-in Refrigerators, Freezers, Combination Refrigerator/
Freezers, and Thaw Cabinets
This standard is issued under the fixed designation F2520; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers the basic design and function of temperature regulated, continuous duty commercial, and marine
refrigerators, freezers, combination refrigerator/freezers and thaw cabinets. The equipment will be stationary and of a vertical or
horizontal type.
1.2 Equipment covered under this specification may contain a substance (or be manufactured with a substance) that harms public
health and environment by destroying ozone in the upper atmosphere. This specification does not purport to address environmental
regulations. It is the responsibility of the user of this specification to comply with environmental regulations.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information
only.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
A167A240 Specification for StainlessChromium and Heat-Resisting Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for
Pressure Vessels and for General Applications (Withdrawn 2014)
B280 Specification for Seamless Copper Tube for Air Conditioning and Refrigeration Field Service
D3951 Practice for Commercial Packaging
F760 Specification for Food Service Equipment Manuals
F1166 Practice for Human Engineering Design for Marine Systems, Equipment, and Facilities
2.2 ANSI/UL Standards:
ANSI/UL 303 Refrigeration and Air-Conditioning Condensing and Compressor Units
ANSI/UL 471 Commercial Refrigerators and Freezers
This specification is under the jurisdiction of ASTM Committee F26 on Food Service Equipment and is the direct responsibility of Subcommittee F26.03 on Storage
and Dispensing Equipment.
Current edition approved May 1, 2012Aug. 15, 2020. Published August 2012August 2020. Originally approved in 2005. Last previous edition approved in 20052012 as
F2520 – 05.F2520 – 05 (2012). DOI: 10.1520/F2520-05R12.10.1520/F2520-20.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F2520 − 20
ANSI/UL 866 Outlet Boxes and Fittings for Use in Hazardous Locations, Class I, Groups A, B, C, and D and Class II, Groups
E, F, and G
ANSI/UL 969 UL Standard for Marking and Labeling Systems
ANSI/UL 1995 Heating and Cooling Equipment
2.3 NSF/ANSI International Standards:
NSF/ANSI 2 Food Equipment
NSF/ANSI 7 Food Service Commercial Refrigerators and Freezers
NSF/ANSI 51 Plastic Materials and Components Used in Food ServiceFood Equipment Materials
2.4 ASHRAE Standard:
ASHRAEANSI/ASHRAE 15 Safety CodeStandard for Mechanical Refrigeration
ANSI/ASHRAE 72 Method of Testing Open and Closed Commercial Refrigerators and Freezers
2.5 NFPA Standard:
NFPA 70 National Electrical Code, Article 500, Hazardous Locations
2.6 Canada National Standard/Canadian Standard:
CAN/CSA C22.2 #120-M91#120 Refrigeration Equipment
CSA C657 Energy Performance Standard for Commercial Refrigeration Equipment
2.7 Federal and Military Documents:
Canada Energy Efficiency Regulations – SOR/2016
Department of Energy (DOE) 10 CFR 431 SUBPART C ENERGY EFFICIENCY PROGRAM FOR COMMERCIAL
REFRIGERATORS, FREEZERS AND REFRIGERATOR-FREEZERS
DOE 10 CFR 429 CERTIFICATION, COMPLIANCE, AND ENFORCEMENT FOR CONSUMER PRODUCTS AND
COMMERCIAL AND INDUSTRIAL EQUIPMENT
MIL-STD-167/1 Mechanical Vibrations of Shipboard Equipment (Type I—Environmental and Type II—Internally Excited)
MIL-STD-461 Requirements For the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment
MIL-STD-1399/300 Interface Standard For Shipboard Systems Section 300A Electric Power, Alternating Current
MIL-R-12323 Refrigerators and Related Equipment, Packaging and Packing
2.8 State Documents:
20 CCR 1605.2 California State Standard for Federally-Regulated Appliances
20 CCR 1606 Filing by Manufacturers; Listing of appliances in the MAEDbS
3. Terminology
3.1 Definitions:
3.1.1 ambient air temperature—temperature of the air surrounding the exterior of the cabinet or machinery compartment.
3.1.2 automatic defrost—process where heat is automatically introduced into the cooling coils to dissipate any ice or frost buildups
on the coil.
3.1.3 capacity—term that refers to the total cubic foot area of the interior storage.
3.1.4 condensing units—each unit shall consist of a compressor, condenser, receiver (if required), fan, and motor.
3.1.5 evaporator coils (forced air)—forced circulation type cooling unit consists of a cooling coil, fan with motor, and enclosing
casing.
3.1.6 evaporator coils (static)—refrigerated inner liner with the refrigerating coils incorporated in or attached to the walls of the
unit.unit or an alternate location.
3.1.7 explosion proof—refers to a specific requirement for equipment used in hazardous atmospheres.
3.1.8 horizontal cabinet—any cabinet of undercounter or counter height design.design whose width is its greatest dimension.
Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd., Ann Arbor, MI 48113-0140.
Available from American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc. (ASHRAE), 1791 Tullie Circle, NE, Atlanta, GA 30329.
Available from National Fire Protection Association (NFPA), 1 Batterymarch Park, Quincy, MA 02269-9101.
Available from Canadian Standards Association (CSA), 178 Rexdale Blvd., Toronto, ON M9W1R3, Canada.
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098.
F2520 − 20
3.1.9 modular—particular method of cabinet construction, which allows the cabinet and allsome of its components to be
dissembled and reassembled for ease of installation.
3.1.10 positive latching hardware—any latching mechanism that requires that the latch be disengaged before the door can be
opened.
3.1.11 thaw—equipment designed to accelerate the defrosting process of perishable products.
3.1.12 undercounter—cabinet which has a maximum height of no more than 36 in. (916 mm).
3.1.13 unitary—single piece cabinet construction.
3.1.14 vertical cabinet—any cabinet with single or multiple door arrangements whose height is its greatest dimension and is in
excess of 36 in. (914 mm).where the doors are vertically aligned at an angle of more than 45° from horizontal.
3.1.15 worktop—a cabinet which has a maximum height of no more than 36 in. (916 mm) with an integral solid top that is flat
or has a backsplash designed as a working surface.
4. Classification
4.1 General—Refrigerators, freezers, combination refrigerator/freezers or thaw cabinets covered by this specification are classified
by types, grades, classes, styles, and sizes.
4.2 Type:
4.2.1 Type I—Refrigerator.
4.2.2 Type II—Freezer.
4.2.3 Type III—Combination refrigerator/freezer.
4.2.4 Type IV—Thaw cabinet.
4.3 Grades:
4.3.1 Grade 1—Vertical cabinet.
4.3.2 Grade 2—Horizontal cabinet.
4.4 Classes:
4.4.1 Class 1—Modular construction.
4.4.2 Class 2—Unitary (single piece) construction.
4.5 Sizes—The following tables depict the sizes of the various types of units. This specification does not purport to address all of
the sizes that may be available, but is an overview of the most common sizes used in the industry today.
4.5.1 Vertical Cabinet, Style 1 (Refrigerator or Freezer):
F2520 − 20
Net Maximum Maximum
Maximum
Sizes Capacity Overall Height
Width
ft (L) Storage Depth without Legs
in. (mm)
ft (L) in. (mm) in. (mm)
5 (142) 4 (113) 33 (838) 27 (686) 64 (1626)
10 (283) 9 (255) 32 (813) 29 (737) 66 (1676)
15 (425) 14 (396) 39 (991) 29 (737) 72 (1829)
20 (566) 19 (538) 51 (1295) 29 (737) 74 (1880)
30 (850) 29 (821) 58 (1473) 32 (813) 74 (1880)
40 (1133) 39 (1104) 68 (1727) 34 (864) 74 (1880)
65 (1841) 64 (1812) 86 (2184) 34 (864) 74 (1880)
85 (2407) 84 (2379) 112 (2845) 34 (864) 74 (1880)
4.5.1.1 Depth shown is maximum overall with door installed.
4.5.1.2 Height does not include legs when applicable.
4.5.2 Horizontal Cabinet, Style 2 (Refrigerator or Freezer):
Net Maximum Maximum
Maximum
Sizes Capacity Overall Height
Width
ft (L) Storage Depth without Legs
in. (mm)
ft (L) in. (mm) in. (mm)
5 (142) 4.5 (127) 40 (1016) 28 (711) 28 (711)
10 (283) 8 (227) 49 (1245) 28 (711) 28 (711)
20 (566) 18 (510) 84 (2134) 28 (711) 28 (711)
30 (850) 27 (765) 115 (2921) 28 (711) 28 (711)
4.5.2.1 Depth shown is maximum overall with door installed.
4.5.2.2 Height does not include legs when applicable.
4.5.3 Combination Refrigerator/Freezer Cabinet:
Maximum
Total Low Maximum
Maximum Height
Sizes Capacity Temperature Overall
Width without
ft (L) Storage Capacity Depth
in. (mm) Legs
3 3
ft (L) ft (L) in. (mm)
in. (mm)
10 (283) 9 (255) 3 (85) 31 (787) 29 (737) 66 (1676)
15 (425) 14 (396) 6 (170) 39 (991) 29 (737) 72 (1829)
20 (566) 19 (538) 8 (227) 51 (1295) 29 (737) 74 (1880)
30 (850) 29 (821) 13 (368) 64 (1626) 32 (813) 74 (1880)
40 (1133) 39 (1104) 18 (510) 68 (1727) 34 (864) 74 (1880)
4.5.3.1 Depth shown is maximum overall with door installed.
4.5.3.2 Height does not included legs when applicable.
4.5.4 Thaw Cabinets:
Maximum Maximum Maximum
Size Width Depth Height
in. (mm) in. (mm) in. (mm)
One Section 48 (1219) 32 (813) 84 (2134)
Two Section 72 (1829) 32 (813) 84 (2134)
4.6 Styles:
4.6.1 Style 1—Manual loading, stationary or fixed shelving.
4.6.2 Style 2—Roll-in cart loading.
F2520 − 20
5. Ordering Information
5.1 Ordering Data—Purchasers shall select refrigerators, freezers, combination refrigerator/freezers or thaw cabinet equipment
and any preferred options and include the following information in the purchasing document:
5.1.1 Title, number, and date of this specification,
5.1.2 Type, grade, class, style, and size of unit required,
5.1.3 Desired exterior and interior finishes,
5.1.4 Quantity to be furnished,
5.1.5 Electrical power supply characteristics; voltage, phase, frequency,
5.1.6 Number of doors, swing, type (solid or glass),
5.1.7 Accessory equipment: such as spare parts, maintenance parts required, or other options available by the manufacturer, or a
combination thereof,
5.1.8 When Federal/Military procurement is required, review and implement the applicable supplementary requirements (see S1
through S8.8.3),
5.1.9 When specified, the purchaser shall be furnished certification that samples representing each lot have been either tested or
inspected as directed in this specification and the requirements have been met. When specified, a copy of the test results shall be
furnished, (see 14.1 through 14.3),
5.1.10 Level of preservation and packing required if other than as stated in Practice D3951 (see 17.1),
5.1.11 Other custom features or requirements desired, and
5.1.12 Labeling requirements (if different than 15.1).
6. Materials and Manufacture
6.1 General—Refrigerators, freezers, combination refrigerator/freezers or thaw cabinets shall conform to NSF/ANSI No. 7.
Materials used shall be new and free from defects or reclaimed and recycled conforming to the same quality standards for new
materials.
6.1.1 Corrosion-Resistant Steel—Corrosion-resistant steel shall conform to Specification A167A240 and the requirements on 300
or 430 series of stainless steels as applicable.
6.1.2 Non-Corrosion Resistant Steel—Mild steel used shall have been treated with a coating of either zinc, chrome, nickel, paint,
or similar material to inhibit corrosion.
6.1.3 Aluminum—Aluminum alloys shall conform to the requirements of NSF/ANSI No. 7.
6.1.4 Seamless Copper Tubing—All copper refrigerant lines used in the system shall be of seamless copper tubing conforming to
Specification B280.
6.1.5 Hardware, Fittings, Fasteners—All materials used as hardware, fittings, and fasteners shall be of a corrosion-resistant
material.
6.1.6 Ozone Depleting Compounds—Type one ozone Ozone depleting compounds shall not be used as a refrigerant or as a
component of foam insulation and shall be the manufacturer’s standard chemicals.
F2520 − 20
7. Design and Construction
7.1 General—Refrigerators, freezers, combination refrigerator/freezers, or thaw cabinets shall be the manufacturer’s standard
product delivered assembled, ready for mounting, and connected to electricity and used as applicable. Storage temperatures of units
shall meet the requirements specified by NSF/ANSI No. 7.
7.2 Refrigeration Equipment:
7.2.1 Condensing Unit—Each condensing unit shall conform to the requirements of ANSI/UL 303. Service lines for the attachment
of manifold gages and accessories,accessories shall be provided on both the low and high sides of the system. The capacity of each
condensing unit shall be adequate for the intended application.
7.2.2 Condensing Unit Location—On vertical type cabinets, the condensing unit may be located on either the top or bottom of the
storage compartment. With a horizontal configuration, the condensing unit can be located either to the left back, left, or right of
the storage compartment unless it is remote.
7.2.3 Refrigerated Metering—If a thermal expansion valve is used, it shall adhere to the ASHRAE 15, which addresses system
working pressures.
7.2.4 Evaporated Coil Assembly (Forced Air)—The coiling coil shall be finned tube construction using copper tubes. The coil tube
sheets shall be aluminum, copper, or brass. The fan hub shall be corrosion resistant. The fan and motor shall be direct mounted.
The grill opening, shroud, and enclosing casing shall be corrosion resistant.
7.2.5 Condensate Drain—All models incorporating forced air evaporators shall provide a thermostatically controlled vaporizer
pans as means of disposing of evaporator runoff. An alternate means of condensate evaporation, which allow connection to
plumbing, is acceptable. When condensate evaporators are used, they shall have a minimum capacity of 32 oz.
7.3 Modular Construction:
7.3.1 Panel Construction—Modular units consisting of panel construction must fit together in such a way that, when reassembled,
the panels cannot move more than ⁄16 in. (1.6 mm) in any direction.
7.3.2 Fastening Methods—For modular constructed units, in the assembly process, only those types of fastening methods can be
used which would allow the unit to be disassembled at a future date without the use of special tools or methods which might
damage or disfigure the unit. No permanent fastening means of the sub-components to one another, such as welding, brazing,
soldering, or the use of epoxies or other adhesives is acceptable.
7.3.3 Access Caps—The caps used to seal the panel fastener access hole, when installed shall be watertight and have flared edges.
Access caps, as installed, shall conform to NSF/ANSI No. 7.
7.3.4 Modular Refrigeration Systems—The refrigeration system shall be furnished f
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