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Uw = The thermal transmittance of the opaque wall. <br />A = Opaque wall area. <br />Ug = The thermal transmittance of the glazing. <br />Ag = Glazing area. <br />U = The thermal transmittance of the doors. <br />Ad = Door area. <br />M = Correction factor for mass based on specific heat, density <br />and climate. <br />(j) Add the following Table 5-2C after Table 5-2B at page 5-8 of the <br />energy code: <br />Table 5-2C <br />Insulating/Solar Glass Equivalence <br />Equivalent Shading Coefficients <br />Climatological Zones <br />1 2 3 4 5 6 7 8 9 <br />0.55 0.55 0.58 0.64 0.63 0.66 0.68 0.70 0.70 <br />After calculating compliance of U values, the designer may substi- <br />tute equal amounts of solar glass with the above shading coefficients <br />(or lower) for insulating glass with U values of 0,65 (or higher). <br />(k) Paragraph 503.2(a) at page 5-10 of the energy code is hereby <br />amended as follows: <br />503.2(a). Calculation Procedures: <br />For purposes of sizing HVAC systems, the procedures described in <br />Chapters 24, 25, or 26 of Std. RS -1 may be used, or an equivalent <br />computation procedure. <br />This code does not regulate HVAC system sizing. HVAC systems may be <br />sized using weather criteria not contained in this code. This code <br />does not stipulate designer safety factors, provisions for future <br />expansion, or other factors which affect equipment sizing. <br />(1) Add the following paragraph 503.4(b)(4) following paragraph <br />503.4(b)(3)(e) at page 5-14 of the energy code: <br />503.4 (b) (4) . <br />Electric resistance comfort heating equipment may be used separately <br />or in conjunction with straight air conditioning units or other HVAC <br />systems. The manufacturer of electric resistance comfort heating <br />equipment shall make available to prospective purchasers, designers, <br />or contractors full load energy input over the range of voltages at <br />which the equipment is intented to operate. <br />(m) Subparagraphs 1, 2 and 3 of Subsection 503.7(a) on page 5-18 of <br />the energy code are hereby amended to read as follows: <br />1. Where used to control heating only, a maximum temperature setting <br />of 72 F. <br />2. Where used to control cooling only, a minimum temperature of 79 F. <br />3. Where used to control both heating and cooling, it shall have a <br />maximum heating mode temperature setting of 72 F and a minimum cooling <br />mode temperature setting of 78 F and shall be capable of operating the <br />system heating and cooling in sequence. It shall be adjustable to <br />-3- <br />