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// CODE SNIPPET

E 503.4.6.3.3 Optimum Start Controls

2018 Uniform Mechanical Code of Nevada > E Sustainable Practices > E 503.0 Heating, Ventilation, and Air-Conditioning — Other Than Low-Rise Residential Buildings > E 503.4 Mandatory Provisions > E 503.4.6 Zone Thermostatic Controls > E 503.4.6.3 Off-Hour Controls > E 503.4.6.3.3 Optimum Start Controls

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Individual heating and cooling systems with setback controls and DDC shall have optimum start controls. The control algorithm shall, as a minimum, be a function of the difference between space temperature and occupied setpoint, the outdoor temperature, and the amount of time prior to scheduled occupancy. Mass radiant floor slab systems shall incorporate floor temperature into the optimum start algorithm. [ASHRAE 90.1:6.4.3.3.3]

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