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2. Hydronic systems balancing: Individual hydronic heating <br />and cooling coils shall be equipped with means for <br />balancing and pressure test connections. Hydronic systems <br />shall be proportionately balanced in a manner to first <br />minimize throttling losses, then the pump impeller shall be <br />trimmed or pump speed shall be adjusted to meet design <br />flow conditions. Each hydronic system shall have either <br />the ability to measure pressure across the pump, or test <br />ports at each side of each pump. <br />Exceptions: <br />1. Pumps with pump motors of 5 hp or less. <br />2. When the throttling results is no greater than 5 <br />percent of the nameplate horsepower draw above <br />that required if the impeller were trimmed." <br />(29) Amending Section 505.7. Section 505.7 is amended to read as follows: <br />"505.7 Electrical energy consumption. (Mandatory). In buildings <br />having individual dwelling or subtenant units, provisions shall be made to <br />determine the electrical energy consumed by each tenant by separately <br />metering individual dwelling and subtenant units. Tenants shall have ready <br />physical access to meters. Meters shall display kWh consumption and be <br />calibrated in accordance with ANSI C12.1-2008." <br />(30) Amending Chapter 6. Chapter 6, Referenced Standards, is amended by <br />adding the following specifications to the ANSI and ASTM categories, to <br />read as follows: <br />"ANSI <br />Referenced <br />Standard <br />in code <br />reference <br />section number <br />number <br />Title <br />C12.1 -2008 <br />Electric Meters Code for Electricity Metering <br />..............505.7 <br />ASTM <br />Referenced <br />Standard <br />in code <br />reference <br />section number <br />number <br />Title <br />E408 -2008 <br />Standard Test Methods for Total Normal Emittance <br />of <br />Surfaces Using Inspection Meter Techniques .......... <br />402.1.1.6 <br />402.1.1.7 <br />402.1.1.8.1" <br />12 <br />