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The Digital Movement: Building HVAC Requirements in California

Under the new Title 24 Requirements in the state of California, many standards are introduced and described in order to increase energy efficiency in residential and commercial buildings in the state.  According to the document, Title 24 exists because, “Energy efficiency reduces energy costs, increases reliability and availability of electricity, improves building occupant comfort, and reduces impacts to the environment making standards important and necessary for California’s energy future. (Sec 1.3)”  Given the increasing demand on California’s power grid, these measures are put in place to reduce “the growth in electricity use by 464 gigawatt-hours per year (GWh/yr) and reduce the growth in natural gas use by 10.9 million therms per year (therms/yr). The savings attributable to new low-rise residences are 23.6 GWh/yr of electricity savings and 1.1 million therms of natural gas.  These savings are first year annual savings based on the estimated housing starts and existing dwelling renovation levels. The cumulative 3-year savings are much higher than these numbers. (Sec 1.3.1)”

 

One section in particular calls out the need to properly charge a new or replaced system in order to maximize performance and efficiency thus reducing the power draw of that system.  In order to check proper system charge, the new Title 24 Compliance Forms calls out the following: “The verification of proper refrigerant charge must occur after the HVAC contractor has installed and charged the system in accordance with the manufacturer’s specifications.  The procedure requires properly calibrated digital refrigerant gauges, thermocouples, and digital thermometers. When multiple systems in the same home require testing, each must be tested individually. (Sec. 4.9.1 A)”  So, all systems in California receiving a charge must be checked using a digital gauge and digital thermometer with thermocouples.

 

Luckily, hilmor tools offers options in the digital categories including  the Dual Readout Thermometer with included thermocouples.  Our tools will make the installation more accurate and ensure the technician in compliance with the new regulations.  As other states consider similar regulations, hilmor will continue to develop tools and solutions to make the installation and maintenance of the HVAC systems easier.