Developing an HVAC Emergency-Preparedness Plan

By James Piper, P.E.  
OTHER PARTS OF THIS ARTICLEPt. 1: Managers Must Prepare for HVAC EmergenciesPt. 2: This PagePt. 3: Emergency Preparedness: Consider Heating and Cooling LoadsPt. 4: Steps for Implementing a Support Structure for Temporary HVAC EquipmentPt. 5: Where Is the Best Place to Install Temporary HVAC Equipment?Pt. 6: Temporary HVAC Equipment: The Rent-or-Buy Decision

The first step in developing the emergency-preparedness plan is to identify equipment failures that would disrupt operations most seriously by determining if disruptions would be localized to specific areas of a building or if disruptions would be building-wide. If the disruptions are only local, the next step is to determine if it is possible for operations to continue without HVAC service or if they need to be relocated to another area with HVAC service.

The situation is different if one central system serves the building. For example, if a single boiler or chiller serves a building, the possibility of failure of that unit makes it a higher priority to find a way of providing heating or cooling with temporary equipment.

Without HVAC services, some portions of the building might be able to continue normal or reduced operation. But in most cases, an equipment failure will significantly disrupt at least a portion of the operations.

A different response is possible if the building has a bank of central boilers or chillers, in which case the loss of one unit would not completely disrupt operations. Generally in such instances, it is possible to continue operations throughout the building. During periods of high heating or cooling loads, the plan also should address the way managers can reduce loads on the system while still providing adequate services to as many areas of the building as needed.

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  posted on 11/9/2009   Article Use Policy

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