• CHAPTER6
    MECHANICAL AND ELECTRICAL REQUIREMENTS

    SECTION601
    GENERAL

    601.1General.

    The provisions of this chapter shall govern the maintenance of mechanical and electrical facilities and equipment.

    601.2Responsibility.

    (Section deleted.)

    SECTION602
    HEATING AND COOLING FACILITIES

    602.1Facilities required.

    Heating facilities shall be provided in structures as required by this section.

    602.2Heat supply.

    Every owner and operator of a Group R-2 apartment building or other residential building who rents, leases, or lets one or more dwelling unit, rooming unit, dormitory, or guestroom on terms, either expressed or implied, to furnish heat to the occupants thereof shall supply heat during the period from October 15 to May 1 to maintain a temperature of not less than 68°F (20°C) in all habitable rooms, bathrooms, and toilet rooms. The code official may also consider modifications as provided in Section 104.5.2 when requested for unusual circumstances or may issue notice approving building owners to convert shared heating and cooling piping HVAC systems 14 calendar days before or after the established dates when extended periods of unusual temperatures merit modifying these dates.

    Exception: When the outdoor temperature is below the winter outdoor design temperature for the locality, maintenance of the minimum room temperature shall not be required provided that the heating system is operating at its full design capacity. The winter outdoor design temperature for the locality shall be as indicated in Appendix D of the IPC.

    602.2.1Prohibited use.

    In dwelling units subject to Section 602.2, one or more unvented room heaters shall not be used as the sole source of comfort heat in a dwelling unit.

    602.3Occupiable work spaces.

    Indoor occupiable work spaces shall be supplied with heat during the period from October 1 to May 15 to maintain a minimum temperature of 65°F (18°C) during the period the spaces are occupied.

    Exceptions:

    1. 1.Processing, storage, and operation areas that require cooling or special temperature conditions.

    2. 2.Areas in which persons are primarily engaged in vigorous physical activities.

    602.4Cooling supply.

    Every owner and operator of a Group R-2 apartment building who rents, leases, or lets one or more dwelling units, rooming units, or guestrooms on terms, either expressed or implied, to furnish cooling to the occupants thereof shall supply cooling during the period from May 15 to October 1 to maintain a temperature of not more than 80°F (27°C) in all habitable rooms. The code official may also consider modifications as provided in Section 104.5.2 when requested for unusual circumstances or may issue notice approving building owners to convert shared heating and cooling piping HVAC systems 14 calendar days before or after the established dates when extended periods of unusual temperatures merit modifying these dates.

    Exception: When the outdoor temperature is higher than the summer design temperature for the locality, maintenance of the room temperature shall not be required provided that the cooling system is operating at its full design capacity. The summer outdoor design temperature for the locality shall be as indicated in the IECC.

    602.5Room temperature measurement.

    The required room temperatures shall be measured 3 feet (914 mm) above the floor near the center of the room and 2 feet (610 mm) inward from the center of each exterior wall.

    SECTION603
    MECHANICAL EQUIPMENT

    603.1Mechanical equipment and appliances.

    Required or provided mechanical equipment, appliances, fireplaces, solid fuel-burning appliances, cooking appliances, chimneys, vents, and water heating appliances shall be maintained in compliance with the code under which the appliances, system, or equipment was installed, kept in safe working condition, and capable of performing the intended function.

    603.2Removal of combustion products.

    Where required by the code under which installed, fuel-burning equipment and appliances shall be connected to an approved chimney or vent.

    603.3Clearances.

    Required clearances to combustible materials shall be maintained.

    603.4Safety controls.

    Safety controls for fuel-burning equipment shall be maintained in effective operation.

    603.5Combustion air.

    Where required by the code under which installed, a supply of air for complete combustion of the fuel shall be provided for the fuel-burning equipment.

    603.6Energy conservation devices.

    (Section deleted.)

    SECTION604
    ELECTRICAL FACILITIES

    604.1Electrical system.

    Required or provided electrical systems and facilities shall be maintained in accordance with the applicable building code.

    604.2Service.

    (Section deleted.)

    604.3Electrical system hazards.

    Where it is found that the electrical system in a structure constitutes a hazard to the occupants or the structure by reason of deterioration or damage or for similar reasons, the code official shall require the defects to be corrected to eliminate the hazard.

    604.3.1Abatement of electrical hazards associated with water exposure.

    The provisions of this section shall govern the repair and replacement of electrical systems and equipment that have been exposed to water.

    604.3.1.1Electrical equipment.

    Electrical distribution equipment, motor circuits, power equipment, transformers, wire, cable, flexible cords, wiring devices, ground fault circuit interrupters, surge protectors, molded case circuit breakers, low-voltage fuses, luminaires, ballasts, motors, and electronic control, signaling, and communication equipment that have been exposed to water shall be replaced in accordance with the provisions of the VCC.

    Exception: The following equipment shall be allowed to be repaired or reused where an inspection report from the equipment manufacturer, an approved representative of the equipment manufacturer, a third-party licensed or certified electrician, or an electrical engineer indicates that the exposed equipment has not sustained damage that requires replacement:

    1. 1.Enclosed switches, rated 600 volts or less;

    2. 2.Busway, rated 600 volts or less;

    3. 3.Panelboards, rated 600 volts or less;

    4. 4.Switchboards, rated 600 volts or less;

    5. 5.Fire pump controllers, rated 600 volts or less;

    6. 6.Manual and magnetic motor controllers;

    7. 7.Motor control centers;

    8. 8.Alternating current high-voltage circuit breakers;

    9. 9.Low-voltage power circuit breakers;

    10. 10.Protective relays, meters and current transformers;

    11. 11.Low- and medium-voltage switchgear;

    12. 12.Liquid-filled transformers;

    13. 13.Cast-resin transformers;

    14. 14.Wire or cable that is suitable for wet locations and whose ends have not been exposed to water;

    15. 15.Wire or cable, not containing fillers, that is suitable for wet locations and whose ends have not been exposed to water;

    16. 16.Luminaires that are listed as submersible;

    17. 17.Motors; or

    18. 18.Electronic control, signaling and communication equipment.

    604.3.2Abatement of electrical hazards associated with fire exposure.

    (Section deleted.)

    604.3.2.1Electrical equipment.

    Electrical switches, receptacles and fixtures, including furnace, water heating, security system and power distribution circuits, that have been exposed to fire, shall be replaced in accordance with the provisions of the Virginia Construction Code.

    Exception: Electrical switches, receptacles and fixtures that shall be allowed to be repaired or reused where an inspection report from the equipment manufacturer or an approved representative of the equipment manufacturer, a third-party licensed or certified electrician, or an electrical engineer indicates that the equipment has not sustained damage that requires replacement.

    SECTION605
    ELECTRICAL EQUIPMENT

    605.1Electrical components.

    Electrical equipment, wiring, and appliances shall be maintained in accordance with the applicable building code.

    605.2Power distribution and receptacles.

    Required or provided power circuits and receptacles shall be maintained in accordance with the code under which constructed and ground fault and arc-fault circuit interrupter protection shall be provided where required by the code in effect at the time of construction. All receptacle outlets shall have the appropriate faceplate cover for the location when required by the applicable building code.

    605.3Lighting distribution and luminaires.

    Required or provided lighting circuits and luminaires shall be maintained in accordance with the applicable building code.

    605.4Flexible cords.

    Flexible cords shall not be run through doors, windows, or cabinets or concealed within walls, floors, or ceilings.

    SECTION606
    ELEVATORS, ESCALATORS AND DUMBWAITERS

    606.1General.

    Elevators, dumbwaiters, and escalators shall be maintained in compliance with ASME A17.1. The most current certificate of inspection shall be on display at all times within the elevator or attached to the escalator or dumbwaiter; or be available for public inspection in the office of the building operator; or be posted in a publicly conspicuous location approved by the code official. Where not displayed in the elevator or attached on the escalator or dumbwaiter, there shall be a notice where the certificate of inspection is available for inspection. An annual periodic inspection and test is required of elevators and escalators. A locality shall be permitted to require a 6-month periodic inspection and test. All periodic inspections shall be performed in accordance with Section 8.11 of ASME A17.1. The code official may also provide for such inspection by an approved agency or through agreement with other local certified elevator inspectors. An approved agency includes any individual, partnership, or corporation who has met the certification requirements established by the VCS.

    606.2Elevators.

    In buildings equipped with passenger elevators, not less than one elevator shall be maintained in operation at all times when the building is occupied.

    Exception: Buildings equipped with only one elevator shall be permitted to have the elevator temporarily out of service for testing or servicing.

    SECTION607
    DUCT SYSTEMS

    607.1General.

    Duct systems shall be maintained free of obstructions and shall be capable of performing the required function.

    607.2Clothes dryer exhaust duct.

    Required or provided clothes dryer exhaust systems shall be maintained in accordance with the applicable building code.