UL 471-2001 pdf download

UL 471-2001 pdf download.Commercial Refrigerators and Freezers.
3.9 FOOD SERVICE CART – Unitary refrigeration equipment equipped with wheels and intended to be moved from one place to another for delivery of food. It may include provisions for heating food or for maintaining heated food at the desired temperature. 3.10 PRESSURE VESSEL – Any refrigerant-containing receptacle of a refrigerating system other than evaporators [each separate section of which does not exceed 1/2 cubic feet (0.014 m 3 ) of refrigerant containing volume], evaporator coils, compressors, condenser coils, controls, headers pumps, and piping. 3.11 REMOTE REFRIGERATORS – Refrigerators intended to be connected to a field-installed condensing unit located remote from the refrigerators. Such refrigerators are intended to be connected to the condensing unit in accordance with the Safety Code for Mechanical Refrigeration, ANSI/ASHRAE 15-1989. 3.12 SECTIONAL REFRIGERATOR – Independent assemblies, usually having an evaporator, that may be coupled together during field installation. A sectional refrigerator may be self-contained. 3.13 SELF-CONTAINED REFRIGERATOR – Unitary equipment consisting of a completely factory assembled and factory tested refrigerating system in which all of the refrigerant-containing parts are permanently connected at the factory. 3.14 SODA FOUNTAIN UNIT – A refrigerator that is equipped for the storing and dispensing of frozen desserts or beverages, or the like. 3.15 SUPERSTRUCTURE – A separate electrical assembly such as a lighting assembly for permanent mounting on the tip of a refrigerator cabinet. The superstructure may be factory installed or may be shipped separately for field installation on the refrigerator cabinet.
4 Installation And Operating Instructions 4.1 A refrigerator shall be provided with installation and operating instructions. The instructions shall contain such directions and information that the manufacturer considers necessary for installation, maintenance, and use of the refrigerator. 4.2 A copy of the manufacturer’s operating and installation instructions, or equivalent information, intended to accompany each refrigerator shall be furnished with the sample submitted for investigation. These instructions are to be used as a guide in the examination and test of the refrigerator. For this purpose, a printed edition is not required initially if rough draft instructions or information as to what the instructions will include are submitted for review as part of the investigation. 4.3 The following information shall be provided with equipment with two power supply cords: a) The instruction shall clearly indicate that the use of two cords is involved and caution against unplugging only one during movement, testing or repair of the product. b) If the attachment plug caps are different, the installation manual shall clearly state that different attachment plugs are used (indicating the ratings). If individual branch circuits are involved, the manual shall clearly state that individual branch circuits (indicating the ratings) are to be employed to supply the product and indicate what actions are required for a proper installation.
5 General 5.1 Ferrous metal parts used to support or retain electrical components in position shall be protected against corrosion by metallic or nonmetallic coatings, such as plating or painting. Exception: This requirement does not apply to parts, such as washers, screws, bolts, and the like, where corrosion of such unprotected parts would not affect compliance with the requirements of this standard. 5.2 Exposed unimpregnated asbestos material shall not be used in air handling or food storage compartments. The unprotected edge of a gasket sandwiched between two parts is considered to be exposed. 5.3 If a superstructure may be employed as an optional accessory, the refrigerator is to be evaluated with and without the superstructure to determine compliance with the requirements of this standard. 5.4 A superstructure intended to be shipped separately for field installation shall comply with requirements for accessories as specified in 7.1 – 7.5. 5.5 Unless provided with other means of exit, door(s) intended for entrance of persons into the refrigerated compartment of a refrigerator shall be provided with a latch release mechanism that will open the door(s) from the inside by a force applied outwardly to the door or to a release actuator. If the latch is provided with a key lock, the latch release mechanism shall be constructed so that the lock can be opened from the interior. See Door Latch Release Test, Section 69.UL 471-2001 pdf download.