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<br />Energy points shall be calculated for an As-Built house and a Baseline house using
<br />actual house configuration and component net areas. Cooling Points, Heating Points and
<br />Water Heating Points shall be calculated separately and then summed. The total points
<br />for the As.Bullt house shall not exceed the total points for the Baseline house. For
<br />a complete description of how to complete Form 600A-93, see the Residential Instruction
<br />Manual,
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<br />600.2.A.1 General
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<br />600.2.A.1.1 Multipliers. Multipliers are provided on Form 600A-93 for commonly installed
<br />technologies for each building component. Multipliers for some less commonly installed
<br />technologies are provided in Appendix C to this document and are referenced by the
<br />appropriate Code section.
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<br />Interpolations of multipliers are allowed by the procedure described in section 1.3 of
<br />Appendix C where rated efficiencies of installed components fall within a range.
<br />Extrapolations of multipliers above the highest value given or below the lowest values
<br />given shall not be permitted. Multipliers are interpolated automatically in the FLA/RES-93
<br />computer program.
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<br />600.2.A.1.2 Insulation R-Values. R-values used to determine the appropriate multiplier
<br />for the insulation level installed shall be the R-value of the added insulation only.
<br />Appendix C, section 1,2 contains general rules for insulation which shall be followed.
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<br />600.2.A. 1.3 Areas, Areas used in the calculation shall be the actual net areas for each
<br />component determined from the plans and specifications of the building to be
<br />constructed,
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<br />600.2.A.2 Residences Not Heated or Not Cooled. Residences which are heated or
<br />cooled, but not both, shall complete both summer and winter calculations, The Baseline
<br />system multiplier divided by 1.10 shall be used for the heating or cooling system not
<br />installed. The duct multiplier for the duct system to be installed shall be used for both
<br />calculations. -
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<br />If an addition or part of an addition is claimed to be exempt from the Code because it will
<br />be neither heated nor cooled, the exempt area shall be fully separated from the
<br />conditioned area by walls or doors,
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<br />600.2.A.3 Additions
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<br />600.2.A.3.1 Additions Complying Alone, Additions to existing buildings shall follow the
<br />same Method A calculation procedure as new construction with the following
<br />qualifications,
<br />1, Calculations shall be conducted using only the components of the addition itself,
<br />including those pre-existing components which separate the addition from
<br />unconditioned spaces,
<br />2. Heating and Cooling System Multipliers shall be equal to the Baseline System
<br />Multiplier divided by 1,10 unless new equipment is installed to replace existing
<br />equip'ment or to service the addition specifically, Addition of new equipment may
<br />qualify for multizone credit (see section 607,2.A.3,2) if all other criteria are met. The
<br />multiplier for the new ductwork to supply the addition shall be used in the calculation.
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<br />6-3
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