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This code does not regulate HVAC system sizing. HVAC systems may be sized using weather criteria not contained in this code. This code does not stipulate designer s::.fety factors, provisions for future expansion, or other factors which affect equipment sizing." (1) Add the following paragraph 503.4(b) (4) following para- graph 503.4(b) (3) (e) at page 5-14 of the energy code: "503.4 (b) 4. Electric resistance comfort heating equipment may be used separately or in conjunction with straight air conditioning units or other HVAC systems. The manufacturer of electric resis- tance comfort heating equipment shall make available to prospective purchasers, designers, or contractors, full load energy input, over the range of voltages at which the equipment is intended to operate." (m) Subparagraphs 1, 2 and 3 of Subsection 503.7(a) on page 5-18 of the energy code are hereby amended to read as "1. Where used to control heating only, a maximum temperature setting of 72 F. 2. Where used to control cooling only, a minimum temperature of 79 F. 3. Where used to control both heating and cooling, it shall have a maximum heating mode temperature setting of 72 F and a minimum cooling mode temperature setting of 78 F and shall be capable of operating the system heating and cooling in sequence. It shall be adjustable to provide a temperature range of up to 10 F between full heating and full cooling in sequence. It shall be adjustable to provide a temperature range of up to 10 F between full heating and full cooling, except as allowed in 503.3(c)4b." (n) The introductory paragraph of Section 503.9 in the energy code as adopted March 21, 1979, remains as follows: "All duct work shall be constructed and erected in accordance with Standards RS -15, RS -16, RS -18, RS -18, RS -19, or RS -20, as applicable, which Standards super- sede the Standards in Section 502 of the Standard Mechanical Code now or hereafter in effect as adopted by the County. The other provisions of Chapter V of the said Mechanical Code apply to the extent the specific criteria is not addressed in any applicable RS Standards. If there is a conflict between any provisions of Chapter V of the said Mechanical Code as amended now or hereafter and the RS Standards, the RS Standards shall control. Subparagraphs (a), (b), and (c) of Section 503.9 are not amended. This amendment continues from the original adoption of the energy code on March 21, 1979." (o) Add thefollowing paragraph 504.2(a)2 at page 5-26 of n�aP hatwaan "when tnsted in accordance with "All gas and oil fired water heaters having an input rate over 75,000 Btu/h (22KW) but less than 4,000 Btu/h per gallon (0.3 KW/liter) of self stored water shall also have a standby loss not exceeding X = 2.8 + p/002 Q/V