UL 984
Hermetic Refrigerant Motor-Compressors

DETAILS
Edition Number:7SCC Approved:--
Edition Date:1996-05-31DOD Approved: 1992-01-13
Price Code:DANSI Approved: --
Type:ulcsa

  • SCOPE

    1 Scope

    1.1 This Standard applies to hermetic refrigerant motor-compressors (hereinafter referred to as motor-compressors) rated 7200 V or less, for use in air-conditioning and refrigerating equipment that comply with the Standards applicable to such equipment.

    1.2 This Standard also applies to motor protection systems that may be provided with motor-compressors.

    1.3 This Standard does not include additional requirements applicable to equipment designed for use in hazardous locations as defined in the National Electrical Code, ANSI/NFPA 70-1996, and the Canadian Electrical Code, Part I.

    1.4 The values given in SI (metric) units are the standard. The values given in parentheses are for information only.

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • UL/CSA Title Page
    • Table of Contents
    • ULCSAPREFACE
    • CSA Foreword
    • UL Foreword
      • Body
        • Section
          • 1 Scope
          • 2 Definitions
          • 3 General requirements
        • CONSTRUCTION
          • 4 Motor-compressor enclosures
          • 5 Electrical enclosures
          • 6 Openings in enclosures
          • 7 Gaskets
          • 8 Field wiring supply connections
          • 9 Factory wiring supply connections
          • 10 Current-carrying parts
          • 11 Electrical insulating materials
          • 12 Wiring and wiring methods
          • 13 Electrical spacings
          • 14 Separation of circuits
          • 15 Overheating and overload protection
          • 16 Short-circuit protection
          • 17 Capacitors
          • 18 Motor controllers
          • 19 Electric crankcase heaters
          • 20 Off-cycle crankcase heating
          • 21 Bonding
        • MARKING
          • 22 General
          • 23 Motor-compressor markings
          • 24 Other Markings
        • TESTS
          • 25 General test parameters
          • 26 Measurement of locked-rotor current test
          • 27 Locked-rotor temperature test
          • 28 Primary single phasing failure test
          • 29 Dielectric voltage-withstand test
          • 30 Maximum continuous current test
          • 31 Limited short-circuit test
          • 32 Off-cycle crankcase heating test
          • 33 Vibration test
          • 34 Motor-compressor enclosure strength test
          • 35 Motor protective device strength test
          • 36 Calibration check test – motor protective device
          • 37 Endurance test – bypass valve
          • 38 Impact test
          • 39 Flame test
          • 40 Mold stress-relief test
          • 41 Compatibility test
          • 42 Gasket-accelerated aging test
          • 43 Metallic coating thickness test
          • 44 Rain test
        • MANUFACTURING AND PRODUCTION TESTS
          • 45 Pressure tests for leakage and strength
          • 46 Production line dielectric voltage-withstand test
        • STANDARDS FOR COMPONENTS
          • 47 CSA Standards
          • 48 UL Standards
          • 49 Other Standards
    • APPENDIX A
    • TECHNICAL COMMITTEE ON CONSUMER AND COMMERCIAL PRODUCTS
    • SUBCOMMITTEE ON C22.2 NO. 140