UL 1889
Standard for Commercial Filters for Cooking Oil

DETAILS
Edition Number:1SCC Approved:--
Edition Date:1996-08-30DOD Approved: --
Price Code:AANSI Approved: 2018-09-04
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover commercial filters for cooking oil rated 600 volts or less and intended for use in accordance with the National Electrical Code, NFPA 70. These requirements cover both portable filters and fixed filters intended to be used with a specific fryer or fryers or with any fryer or fryers.

    1.2 These requirements cover oil filters used to filter cooking oil used in deep fat fryers usually found in commercial kitchens, restaurants, or other business establishments where food is dispensed. The filters consist of a pump motor to pump oil to and/or from a deep fat fryer and are capable of including an integral oil heater. The requirements are also applicable to filters built into a fryer.

    1.3 When a filter is provided as part of a larger appliance, these requirements cover the filter and related components. The other portions of the appliance are to be evaluated in accordance with the requirements that normally apply to that type of equipment. However, consideration shall be given to the interaction between the two portions of the appliance; for example, to the possibility that the entire appliance is capable of being exposed to hot cooking oil.

    1.4 Deleted October 8, 2004

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • Table of Contents
    • UL Foreword
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 General
            • 2.1 Components
            • 2.2 Units of measurement
            • 2.3 Undated references
          • 3 Glossary
        • CONSTRUCTION
          • 4 Accessories
          • 5 Frames and Enclosures
            • 5.1 General
            • 5.2 Openings
          • 6 Accessibility of Live Parts
            • 6.1 General
            • 6.2 Protection of service personnel
          • 7 Adhesives Used to Secure Parts
          • 8 Protection Against Corrosion
          • 9 Mechanical Assembly
            • 9.1 General
            • 9.2 Shipping
          • 10 Supply Connections
            • 10.1 Permanently-connected appliances
            • 10.2 Cord-connected appliances
          • 11 Grounding and Bonding
          • 12 Polarization
          • 13 Current-Carrying Parts
          • 14 Attachment-Plug Receptacles
          • 15 Internal Wiring
            • 15.1 General
            • 15.2 Insulation
            • 15.3 Protection
            • 15.4 Splices and connections
          • 16 Heating Elements
          • 17 Electrical Insulation
          • 18 Thermal Insulation
          • 19 Motors
            • 19.1 General
            • 19.2 Motor protection
          • 20 Limiting Controls
          • 21 Short-Circuit and Ground-Fault Protection
          • 22 Thermostats
          • 23 Capacitors
          • 24 Switches
          • 25 Secondary Circuits
            • 25.1 General
            • 25.2 Limited-energy secondary circuits
          • 26 Spacings
        • PROTECTION AGAINST INJURY TO PERSONS
          • 27 Scope
          • 28 General
          • 29 Enclosures and Guards
          • 30 Material
          • 31 Hoses and Handles
          • 32 Switches, Controls, and Interlocks
            • 32.1 Switches and controls
            • 32.2 Interlocks
            • 32A Oil Drain
          • 33 Parts Subject to Pressure
            • 33.1 General
            • 33.2 Pressure tests
            • 33.3 Pressure relief means
            • 33.4 Pressure relief devices
            • 33A Oil Reservoir
          • 34 Stability
        • PERFORMANCE
          • 35 General
          • 36 Leakage Current Test
          • 37 Operation Test
          • 38 Power Input Test
          • 39 Average Current Input Test
          • 40 Starting Current Test
          • 41 Grounding and Bonding Test
            • 41.1 Grounding
            • 41.2 Bonding
          • 42 Normal Temperature Test
            • 42.1 General
            • 42.2 Test equipment
            • 42.3 Method
            • 42.4 Procedure
            • 42.5 Normal test conditions
            • 42.6 Surface temperatures
          • 43 Dielectric Voltage-Withstand Test
            • 43.1 General
            • 43.2 Secondary Circuits
            • 43.3 Transformers
          • 44 Insulation Resistance Test
          • 45 Stability Test
          • 46 Strain Relief Test
          • 47 Deterioration of Parts
          • 48 Abnormal Heating Test
            • 48.1 General
            • 48.2 Test procedure
          • 49 Abnormal Operation Test
          • 50 Abnormal Operation Test, Electronic Components
            • 50.1 General
            • 50.2 Effect on temperature control systems
          • 51 Endurance Test
            • 51.1 Wiring
            • 51.2 Temperature control
          • 52 Enclosure Strength Test
          • 53 Impact Test
          • 54 Motor Switch Test
          • 55 Transformer Burnout Test
          • 56 Aging/Impact of Handles
          • 57 Parts Subject to Contact With Oil or Other Liquids
          • 58 Polymeric Motor Supports
          • 59 Capacitor Enclosure Thickness
          • 60 Hydrostatic Pressure Test
          • 61 Pressure Controls Test
          • 62 Permanence of Marking Test
          • 63 Attachment Plug Test
        • MANUFACTURING AND PRODUCTION TESTS
          • 64 Dielectric Voltage-Withstand Test
          • 65 Grounding Continuity Test
          • 66 Pressure Vessels and Parts Subject to Pressure
        • RATINGS
          • 67 Details
        • MARKINGS
          • 67A General
          • 68 Visible After Installation
          • 69 Visible During Installation and Examination
          • 70 Cautionary Markings
          • 71 Manufacturer's Literature
    • APPENDIX A