UL 1795
Standard for Hydromassage Bathtubs

DETAILS
Edition Number:5SCC Approved:--
Edition Date:2016-09-02DOD Approved: --
Price Code:CANSI Approved: --
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover indoor hydromassage bathtubs, rated 250 volts or less, for household and commercial use, for permanent connection to the plumbing of the building. They are intended for either permanent connection to the electrical supply or are factory-provided with a cord terminating in an attachment plug, and are intended for installation and use in accordance with the National Electrical Code, NFPA 70.

    1.2 These requirements do not cover portable cord-connected hydromassage equipment, which is covered by the Standard for Personal Hygiene and Health Care Appliances, UL 1431, or hydrotherapy tubs, which are covered by the Standard for Medical Electrical Equipment, Part 1: General Requirements for Safety, UL 60601-1.

    1.3 The majority of the requirements in this standard address complete hydromassage bathtubs, including field-installed accessories. The following sections specify requirements for field-installed accessory heaters evaluated and certified for the hydromassage bathtub manufacturer.

    a)     Hydromassage Bathtubs Configured for Field-Installed Heaters, (CONSTRUCTION) Section 26, and

    b)     Field-Installed Heaters, Section 27.

    c)     Test for Field-Installed Heaters, (PERFORMANCE) Section 67.

    d)     Hydromassage Bathtubs Configured for Field-Installed Heaters, (MARKINGS) Section 73, and

    e)     Field-Installed Heaters, Section 74.

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 Units of Measurement
          • 3 Undated References
          • 4 Glossary
          • 5 Accessories
        • CONSTRUCTION
          • 6 General
          • 7 Component Specifications
            • 7.1 General
            • 7.2 Quick-connect wire connectors
            • 7.3 Terminal blocks
            • 7.4 Wire connectors
            • 7.5 Button or coin cell batteries of lithium technologies
          • 8 Frame and Enclosure
            • 8.1 General
            • 8.2 Barriers
            • 8.3 Moving parts
            • 8.4 Button or coin cell batteries of lithium technologies
          • 9 Mechanical Assembly
            • 9.1 General
            • 9.2 Adhesive used to secure parts
          • 10 Accessibility of Uninsulated Live Parts, Film-Coated Wire, and Moving Parts
          • 11 Provisions for Servicing
          • 12 Resistance to Corrosion
          • 13 Power Supply Connections
            • 13.1 General
            • 13.2 Permanently connected units
            • 13.3 Cord- and plug-connected units
          • 14 Live Parts
          • 15 Internal Wiring
            • 15.1 General
            • 15.2 Splices and connections
          • 16 Separation of Circuits
          • 17 Grounding
          • 18 Equipotential Bonding
          • 19 Circuits
            • 19.1 General
            • 19.2 Secondary circuits
            • 19.3 Circuits accessible to a bathtub occupant
            • 19.4 Circuits that perform Safety Critical Functions
          • 20 Insulation
            • 20.1 Electrical insulation
            • 20.2 Thermal insulation
          • 21 Printed-Wiring Boards
          • 22 Spacings
            • 22.1 General
            • 22.2 Class 2 circuits
            • 22.3 Field-wiring terminals
            • 22.4 Other than field-wiring terminals
            • 22.5 Safety circuits
            • 22.6 Printed-wiring boards
            • 22.7 Spacings within motors
          • 23 Clearance and Creepage Distances
          • 24 Ground-Fault Circuit-Interrupters
          • 25 Electric Heaters
          • 26 Hydromassage Bathtubs Configured for Field-Installed Heaters
          • 27 Field-Installed Heaters
          • 28 Heater Protection
          • 29 Motors
          • 30 Motor Overload Protection
          • 31 Air Blowers
          • 32 Overload Protection
          • 33 Leakage Current Collectors
          • 34 Gaskets
          • 35 Luminaires
          • 36 Capacitors
          • 37 Transformers
          • 38 Switches, Receptacles, and Controls
            • 38.1 General
            • 38.2 Manually-operated switches
            • 38.3 Reduction of risk of injury to persons
          • 39 Sharp Edges
          • 40 Temperature-Regulating Controls
            • 40.1 General
            • 40.2 Temperature-regulating controls with a marked or implied “off” position
          • 41 Temperature-Limiting Controls
            • 41.1 General
            • 41.2 Temperature-sensitive controls
            • 41.3 Pressure-sensitive controls
          • 42 Temperature sensing, thermistor devices
          • 43 Parts Subject to Pressure
          • 44 Protection Against Entrapment
          • 45 Direct Plug-In Controls
          • 46 Ozone Generators
        • PERFORMANCE
          • 47 General
          • 48 Insulation Resistance Test
          • 49 Starting Current Test
          • 50 Power Input Test
          • 51 Temperature Test
          • 52 Dielectric Voltage-Withstand Test
            • 52.1 General
            • 52.2 Class 2 circuits
            • 52.3 Printed-wiring boards
          • 53 Switch Overload Test
          • 54 Water Temperature Tests
            • 54.1 General
            • 54.2 Normal operation
            • 54.3 Abnormal operation
          • 55 Water Exposure Test
            • 55.1 General
            • 55.2 Splashing
            • 55.3 Flooding
          • 56 Available Current Test
          • 57 Test for Leakage Current After Heating Element Failure
          • 58 Grounding Impedance Test
          • 59 Flow Rate Test
          • 60 Gaskets and Seals – Accelerated Aging Test
          • 61 Ozone Offgas Test
          • 62 Abnormal Operation Tests
            • 62.1 Water back flow
            • 62.2 Electrolytic capacitor
            • 62.3 Rotating parts test
            • 62.4 Transformer test
            • 62.5 Dry-fire control operation
          • 63 Tests for Parts Subject to Pressure
            • 63.1 Hydrostatic pressure test
            • 63.2 Reverse hydrostatic pressure test
            • 63.3 Check valves
          • 64 Metallic Coating Thickness Test
          • 65 Strain Relief Test
          • 66 Leakage Current Test
          • 67 Tests for Field-Installed Heaters
          • 68 Direct Plug-In Controls
        • MANUFACTURING AND PRODUCTION-LINE TEST
          • 69 Dielectric Voltage-Withstand Test
        • RATINGS
          • 70 General
        • MARKINGS
          • 71 General
          • 72 Cord Tags
          • 73 Hydromassage Bathtubs Configured for Field-Installed Heaters
          • 74 Field-Installed Heaters
          • 75 Direct Plug-In Controls
        • INSTRUCTIONS
          • 76 General
          • 77 Instructions Pertaining to a Risk of Fire, Electric Shock, or Injury to Persons
          • 78 Operating Instructions
          • 79 Installation Instructions
          • 80 User-Maintenance Instructions
    • CONTROLS EVALUATED TO UL 508 AND UL 873