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// CODE SNIPPET

Section 602 Heating and Cooling Facilities

2012 Virginia Maintenance Code (USBC, Part III) > 6 Mechanical and Electrical Requirements > 602 Heating and Cooling Facilities
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602.1 Facilities Required

Heating and cooling facilities shall be maintained and operated in structures as required by this section.

602.2 Heat Supply

Every owner and operator of a Group R-2 apartment building or other residential dwelling 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 65°F (18°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 International Plumbing Code.

602.2.1 Prohibited 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.

602.3 Occupiable Work Spaces

Indoor occupiable work spaces shall be supplied with heat during the period from October 1 to May 15 to maintain a temperature of not less than 65°F (18°C) during the period the spaces are occupied.

Exceptions:

  1. Processing, storage and operation areas that require cooling or special temperature conditions.
  2. Areas in which persons are primarily engaged in vigorous physical activities.

602.4 Cooling 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 International Energy Conservation Code.

602.5 Room 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.

Related Code Sections


Section 602 Mechanical and Electrical Requirements, Heating and Cooling Facilities
Heating and cooling facilities shall be maintained and operated in structures as required by this section ...
2012 Virginia Maintenance Code (USBC, Part III) > 6 Mechanical and Electrical Requirements > 602 Heating and Cooling Facilities
602.2.1 Mechanical and Electrical Requirements, Prohibited 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 ...
2012 Virginia Maintenance Code (USBC, Part III) > 6 Mechanical and Electrical Requirements > 602 Heating and Cooling Facilities > 602.2 Heat Supply > 602.2.1 Prohibited Use
C403.4.6 [CE] Commercial Energy Efficiency, Heat Recovery for Service Water Heating
: Facilities that employ condenser heat recovery for space heating or reheat purposes with a heat recovery design exceeding 30 percent of the peak water-cooled ...
2012 Virginia Energy Conservation Code > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.4 Complex HVAC Systems and Equipment. (Prescriptive) > C403.4.6 Heat Recovery for Service Water Heating
C403.4.5 [CE] Commercial Energy Efficiency, Heat Recovery for Service Water Heating
water-cooled condenser load at design conditions. Facilities that provide 60 percent of their service water heating from site solar or site recovered ...
2015 Virginia Energy Conservation Code > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.4 Hydronic and Multiple-Zone HVAC Systems Controls and Equipment. (Prescriptive) > C403.4.5 Heat Recovery for Service Water Heating
2801.1.2 Mechanical Systems, Required Heating in Nonresidential Structures
Heating facilities shall be required in every enclosed occupied space in nonresidential structures. The heating facilities shall be capable ...
2012 Virginia Construction Code (USBC, Part I) > 28 Mechanical Systems > 2801 General > 2801.1 Scope > 2801.1.2 Required Heating in Nonresidential Structures
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