ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 19

close as designed. With actuated dampers, this is accomplished position indication devices are designed with one switch by applying power to the actuator to open the damper blades, that closes when the damper blades fully open and a second then removing power from the actuator to allow its spring to switch that closes when the damper blades fully close. This close the damper blades. Note that all smoke and combination can be accomplished by using switches built into the actuafire-smoke dampers are required to have an actuator. Fire tor or stand-alone switch packages that are tied to the damper dampers can also be supplied with an actuator, but it is not blades (Figure 2). In either case, the signal from the switches required and is relatively rare. Non-actuated fire dampers can be tied back to a control panel, fire alarm panel or must have the heat-response building automation system device actuated or removed (BAS) for easy confirmation Once an initial inspection or so that the damper is shown of the damper's position. to fully close. Then the damper commissioning of a life-safety damper must be reopened and the heat ENFORCEMENT OF has been performed, the use of DAMPER TESTING response device reinstalled or REQUIREMENTS replaced. damper position indication devices In addition to the requireThe level to which life-safety ments of NFPA 80 and 105, damper periodic testing can safely and effectively be used to smoke and combination firerequirements are enforced smoke dampers that are part confirm that the damper is continuing varies by municipality and of a smoke control system even more so by building type. to function properly. must be tested with the rest of In addition to the building the smoke control system. The inspections conducted by local periodic testing of smoke control systems is governed by the authorities having jurisdiction (AHJs), health-care facilities Standard for Smoke Control Systems (NFPA 92).5 The fre- are inspected by the Center for Medicare and Medicaid Serquency of the NFPA 92 periodic testing requirements depends vices (CMS). CMS-required inspections are often contracted on whether the smoke control system is dedicated (used only out to organizations such as the Joint Commission, which for smoke control purposes) or non-dedicated (used for both accredits health-care organizations. CMS and Joint Commisgeneral HVAC and smoke control). Dedicated smoke control sion inspections require health care facilities to provide logs systems must be tested every six months, and non-dedicated of the periodic testing of their life-safety dampers. As a result, systems are required to be tested every year. adherence to the periodic life-safety damper testing requirements of NFPA 80, 105 and 92 in health care facilities is METHODS OF CONFIRMING PROPER essentially 100 percent. OPERATION: VISUAL AND REMOTE The same cannot be said for other building types. Many Besides the frequency of the testing, the primary difference AHJs do not request that building administrators produce between the NFPA 80 and 105 requirements and the NFPA records of their life-safety damper testing. That fact, along 92 requirements is the method by which the operation of the with the shortage of maintenance personnel and, in many dampers is required to be confirmed. NFPA 80 and 105 require cases, the difficulty getting visual confirmation of life-safety visual confirmation of the opening and closing of life-safety dampers' proper operation, results in a lack of testing lifedampers. This applies to both actuated and non-actuated safety dampers in non-health-care facilities. dampers. Building codes require that each life-safety damper be provided access large enough to permit inspection and maintenance of the damper. Codes also require that those access points be permanently identified. Despite these access and identification requirements, visual inspection of life-safety dampers can be exceedingly difficult to perform. Life-safety dampers are often installed well above the ceiling and sometimes behind obstructions such as ducts, pipes and conduit (Figure 1). In addition, many life-safety dampers are in relatively small ducts (12 in. × 12 in. or less). This can add to the difficulty of visually confirming that a damper opens and closes properly. NFPA 92 does not require visual confirmation. As a result, most NFPA 92 life-safety damper periodic testing requirements are met by cycling power to the damper and remotely confirming that the damper is able to open and close properly Figure 2. Typical damper position indication switch by monitoring a position indication device. Damper assembly. Image courtesy of Greenheck. W W W. A M C A . O R G AMCA inmotion Summer 2016 19 http://WWW.AMCA.ORG

Table of Contents for the Digital Edition of ASHRAE Journal Supplement - AMCA In Motion - Fall 2016

Contents
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - BB1
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - BB2
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - Cover1
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - Cover2
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - Contents
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 2
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 3
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 4
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 5
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 6
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 7
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 8
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 9
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 10
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 11
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 12
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 13
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 14
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 15
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 16
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 17
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 18
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 19
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 20
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 21
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 22
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 23
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 24
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 25
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 26
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 27
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 28
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 29
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 30
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 31
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 32
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 33
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 34
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 35
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - 36
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - Cover3
ASHRAE Journal Supplement - AMCA In Motion - Fall 2016 - Cover4
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