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that existing windows are single glazed.

(k) Efficient lighting fixtures and lamps shall produce more than twice the useful light per watt of the lighting system they replace, in all climate zones.

(1) Mixing valves for a hot water supply line shall be capable of manual adjustment of water temperature, without water shut off or disconnection, in all climate zones.

(m) Flow restrictors for hot water lines shall be eligible for all shower heads and faucets in all climate zones. (n) Residential burners for oil fired heating equipment shall

(1) Cost less than $340 installed;

(2) Be certified by the manufacturer to be capable of yielding an efficiency rating of 82 percent or higher in a new furnace as measured by a standard steady state efficiency test measuring CO, and stack temperature; and

(3) Replace inefficient burners, which shall be burners that cannot be adjusted using the procedures and tests prescribed in E.P.A. publication 600/2-75-069A, entitled Guidelines for Residential Oil Burner Adjustments, Oct., 1975, to perform at an efficiency not less than

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(2) Be certified by the manufacturer to maintain 11 percent CO2 at 1⁄4 firing rate, 12.5 percent CO2 at 1⁄2 firing rate, and 14.5 percent CO, at full firing rate, while producing less than number two smoke spot number for No. 2 oil or less than number three smoke spot number for No. 6 oil using the test prescribed.

(q) Controls for lighting shall be installed on a circuit having a wattage of more than 1,500 watts for automatic controls and 400 watts for manual branch circuit switches, in all climate zones.

(r) HVAC controls, in all climate zones, shall be

(1) Automatic, turn down, time actuated thermostats;

(2) Steam controls, valves, thermostats, timers, or external temperature sensors to limit space temperatures;

(3) Economizer controls and systems to utilize outside air in lieu of conditioned air when outside air temperatures will assist;

(4) Controls to reduce air distribution volume to meet demand;

(5) Controls to reduce heating or air conditioning systems output to minimum levels during unoccupied periods;

or

(6) Automated computer, microprocessor and logic controller associated with HVAC control.

(s) High efficiency motors or motor controls shall have substantially continuous annual use, 5,000 hours minimum, and shall increase efficiency of operation not less than

Efficiency

increase

(0) Individual meters to replace master meters for gas, electricity and hot water shall be permitted in all climate zones.

(p) New commercial or industrial oil burners and controls shali

(1) Replace oil burners that cannot maintain 10 percent CO2 at 4 firing rate, 11 percent CO2 at 1⁄2 firing rate and 14 percent CO2 at full firing rate, while producing less than number two smoke spot number for No. 2 oil or less than number three smoke spot number for No. 6 oil, using the test prescribed in ASTM Standard D215665 (70); and

1.5

2

5

7.5.

10

15

20. 25

Motor horsepower

percentage points 1

5.7

5.4

3.9

3.9

3.4

3.0

2.4

2.3

'Efficiencies shall be determined by IEEE standard 112A method B, under ANSI standard C.50.2. Percentage points efficiency increase is the arithmetic sum of the efficiency of the new motor operation less the efficiency of the existing motor operation.

(t) Whole house ventilation fans shall have the capacity to provide one

complete exchange of air in less than two minutes, provided that the residential buildings are air conditioned and located in cooling zones 1, 2, or 3.

(u) An air source heat pump must be evaluated by a verification audit in accordance with the procedures in Subpart C of this part to determine whether savings in a specific application are sufficient to recover the costs of purchase and installation within its attributed life.

(v) A water source heat pump must be evaluated by a verification audit in accordance with the procedures in Subpart C of this part to determine whether costs savings in a specific application are sufficient to recover the costs of purchase and installation within its attributed life.

(Part B of Title IV of the Energy Conservation and Production Act, Pub. L. 94-385, 90 Stat. 1125 et seq.; also issued under Part C, Title III of the Energy Policy and Conservation Act, Pub. L. 94-163, 89 Stat. 871 et seq. (42 U.S.C. 6321 et seq.); Federal Energy Administration Act of 1974, as amended, Pub. L. 93-275 (15 U.S.C. 761 et seq.); Department of Energy Organization Act, Pub. L. 95-91, 91 Stat. 565 et seq. (42 U.S.C. 7101 et seq.); EO 11790, 39 FR 23185)

[42 FR 37800, July 25, 1977, as amended at 42 FR 61993, Dec. 8, 1977]

§ 450.33 Renewable-resource energy measures.

Subject to the requirements set forth in § 450.34, a renewable-resource energy measure shall be a

(a) Agricultural waste-fired boiler, which is a system which is partially or completely fueled by agricultural residues;

(b) Geothermal space heating or cooling system, which is a system that uses heat extracted from the earth for either electrical generation or space conditioning purposes; and

(c) Skylight, which is a device which is installed to replace small portions of a roof for the purpose of supplying a portion of the lighting requirements of a building;

(d) Solar electric dispersed photovoltaic system, which is a system which involves the use of small arrays of cells which convert solar radiation into electric power for on-site use;

(e) Solar powered pump, which is a system which captures energy radiat

ed by the sun, and uses this energy to power a pump;

(f) Solar process heating system, which is a system which captures energy radiated by the sun for use in industrial or agricultural processes;

(g) Solar space heating or cooling system, which is a system which captures energy radiated by the sun, and uses it for space conditioning purposes;

(h) Solar water heater, which is a system which captures energy radiated by the sun, and uses it to heat water;

(i) Urban waste-fired boiler, which is a system which is partially or entirely fueled by refuse or a refuse derived fuel;

(j) Urban waste pyrolysis system, which is a system which uses urban wastes as a fuel and processes the wastes into a liquid or gaseous fuel;

(k) Water powered generator which is a system which captures and stores the energy contained in moving water and transforms this energy into electricity;

(1) Wind powered generator, which is a system which captures and stores the energy transmitted by the wind and transforms this energy into electric power;

(m) Wind powered water pump, which is a system which captures the energy transmitted by the wind and uses this energy to extract water from a reservoir;

(n) Wood-fired boiler, which is a system which is partially or completely fueled by wood or wood residues;

(0) Wood-fired stove, which is a stove fueled by wood and which is installed primarily for space conditioning purposes.

(Part B of Title IV of the Energy Conservation and Production Act, Pub. L. 94-385, 90 Stat. 1125 et seq; also issued under Part C, Title III of the Energy Policy and Conservation Act, Pub. L. 94-163, 89 Stat. 871 et seq. (42 U.S.C. 6321 et seq.); Federal Energy Administration Act of 1974, as amended Pub. L. 93-275 (15 U.S.C. 761 et seq.); Department of Energy Organization Act, Pub. L. 95-91, 91 Stat. 565 et seq. (42 U.S.C. 7101 et seq.); EO 11790, 39 FR 23185)

[42 FR 37800, July 25, 1977, as amended at 42 FR 61993, Dec. 8, 1977]

§ 450.34 Requirements for renewable-resource energy measures.

(a) Except as provided in paragraph (b) of this section, a renewable-resource energy measure listed in § 450.33 must be evaluated by a verification audit in accordance with the procedures in Subpart C of this part to determine whether cost savings in a specific application are sufficient to recover the costs of purchase and installation within the attributed life of the energy measure.

(b) A solar water heater shall not be required to be evaluated by a verification audit if it is a system which

(1) Is installed in a residential building; and

(2) Replaces an electric resistance water heater; and

(3) Is purchased, installed, and maintained at a total cost which shall not exceed the maximum allowable cost which shall be computed by

(i) Selecting the correct system life factor in the Federal Region in which the system will be installed for the attributed life of the solar heater specified by the manufacturer in the following table

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(ii) Multiplying the system life factor by the current year's electricity rate for water heating in effect for the user of the system to be installed expressed in cents per kilowatt hour; and

(iii) Multiplying the product by the percent of the total hot water demand the system will supply.

(Part B of Title IV of the Energy Conservation and Production Act, Pub. L. 94-385, 90 Stat. 1125 et seq; also issued under Part C, Title III of the Energy Policy and Conservation Act, Pub. L. 94-163, 89 Stat. 871 et seq. (42 U.S.C. 6321 et seq.); Federal Energy Administration Act of 1974, as amended, Pub. L. 93-275 (15 U.S.C. 761 et seq.); Department of Energy Organization Act, Pub. L. 95-91, 91 Stat. 565 et seq. (42 U.S.C. 7101 et seq.); EO 11790, 39 FR 23185)

[42 FR 37800, July 25, 1977, as amended at 42 FR 61993, Dec. 8, 1977]

§ 450.35

Climate zones.

(a) DOE shall determine whether to restrict an energy measure to a climate zone.

(b) DOE shall designate climate zones, consisting of heating zones as shown in Appendix A to Subpart D or cooling zones as shown in Appendix B to Subpart D.

APPENDIX A TO SUBPART D-HEATING ZONES FOR ENERGY MEASURES

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1. Alaska is included in Heating Zone 5.

2. Hawaii, Puerto Rico and the Virgin Islands are included in Heating Zone 0.

[42 FR 37800 July 25, 1977. Redesignated and amended at 44 FR 37939, June 29, 1979]

APPENDIX B TO SUBPART D-COOLING ZONES FOR ENERGY MEASURES

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1. Alaska is included in Cooling Zone 5.

2. Hawaii, Puerto Rico and the Virgin Islands are included in Cooling Zone 1.

[42 FR 37800 July 25, 1977. Redesignated and amended at 44 FR 37939, June 29, 1979]

Subpart E-Preliminary Energy Audits

and Energy Audits

AUTHORITY: Title III of the National Energy Conservation Policy Act, Pub. L. 95619, 92 Stat. 3206 et seq., which establishes Parts G and H of Title III of the Energy Policy and Conservation Act, Pub. L. 94-163, 42 U.S.C. 6321 et seq.; Sec. 365(e)(2), 42 U.S.C. 6325(e)(2), of the Energy Conservation and Production Act, Pub. L. 94-385, 42 U.S.C. 6801 et seq.; Department of Energy Organization Act, Pub. L. 95-91, 42 U.S.C. 7101 et seq.

SOURCE: 44 FR 19351, Apr. 2, 1979, unless otherwise noted.

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For purposes of this subpart—

"Building" means any structure, the construction of which was completed on or before April 20, 1977, which inIcludes a heating or cooling system, or both.

"Complex" means a closely situated group of buildings on a contiguous site or a closely situated group of buildings served by a central utility plant, such as a college campus or a multi-building hospital.

"Construction completion" means the date of issuance of an occupancy permit for a building.

"Energy audit" means a survey of a building or complex that is conducted in accordance with the requirements of this subpart which—

(1) Identifies the type, size, energy use level and the major energy using systems;

(2) Determines appropriate energy conservation maintenance and operating procedures; and

(3) Indicates the need, if any, for the acquisition and installation of energy conservation measures, including solar energy and other renewable resource

measures.

"Energy conservation maintenance and operating procedure" means modifications in the maintenance and operating procedures of a building, and any installations therein, which are designed to reduce energy consumption in such building and which require no significant expenditure of funds.

"Energy conservation measure" means an installation or modification of an installation in a building which is primarily intended to reduce energy consumption or allow the use of an alternative energy source, including, but not limited to

(1) Insulation of the building structure and systems within the building; (2) Storm windows and doors, multiglazed windows and doors, heat absorbing or heat reflective glazed and coated windows and door systems, additional glazing, reductions in glass area, and other window and door system modifications;

(3) Automatic energy control systems;

(4) Equipment required to operate variable steam, hydraulic, and ventilating systems adjusted by automatic energy control systems;

(5) Active or passive solar space heating or cooling systems, solar electric generating systems, or any combination thereof;

(6) Active or passive solar water heating systems;

(7) Furnace or utility plant and distribution system modifications including

(A) Replacement burners, furnaces, boilers, or any combination thereof, which substantially increase the energy efficiency of the heating system;

(B) Devices for modifying flue openings which will increase the energy efficiency of the heating system;

(C) Electrical or mechanical furnace ignition systems which replace standing gas pilot lights; and

(D) Utility plant system conversion measures including conversion of existing oil and gas-fired boiler installa

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