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Decrease Maintenance Calls A well operating EMS can make users more comfortable, therefore decreasing the maintenance calls to improve comfort. One consideration for optimization is to make sure that alarms are properly routed for rapid response. Perhaps by using a local area network (LAN) throughout the school district, the alarms can produce more timely notification and response. Scheduling Scheduling means programming the EMS to adjust to specific conditions at specific time intervals. This basic function of an EMS normally occurs daily (also considering weekends, holidays and stand down periods), but the EMS operator can include special needs based on a circulated calendar and on an announced exception.

Demand control: - VAV fan duct flow and pressure - Demand limiting (load shedding) - Chilled water pressure. - Sequential equipment startup - Duty cycling • Systems with problems in comfort or systems operation • Systems suspected of improper operation • Recently repaired systems • Systems with a history of problems • Systems that have a high energy use or demand. - Off-hours equipment start. CHPS Best Practices Manual, Volume IV: M&O 43 Facilities Management Sampling rates are determined by considering the purpose, the number of sensors involved, and the memory capacity.

On the other hand, many calibration labs can share details of statistical calibration analysis to reliably determine necessary calibration intervals. Sensors can be calibrated in-house if the calibration equipment and appropriately trained staff are available. Remember that the calibration equipment must have regularly scheduled calibrations themselves. Demand Savings Along with Energy Savings Energy savings is a basic reason for most EMSs, but demand savings can be just as important. Demand savings means keeping peak power reasonable, so that utility demand charges, based on the peak power draw over a specified time period, do not raise the overall electric costs.

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