Weekly Testing of Dedicated Smoke Control Dampers - Metasys ...

Weekly Testing of Dedicated Smoke Control Dampers -Metasys® System Extended ArchitectureApplication NoteCode No. LIT-1201743Release 1.2Issued Date July 30, 2004SupersedesDocument Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Related Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Application Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Smoke Control Command Priorities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Automatic Smoke Control During Weekly Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Manual Smoke Control During Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Assigning the Fire Object Category to Smoke Control Objects . . . . . . . . . . . . . . . . . . . 5Security Administration System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Roles and User Accounts Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6UUKL Smoke Control Security Administration Details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Security Administration Detailed Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Creating a New Role . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Creating a New User Account . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Configuring User Profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Configuring Role Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Assigning System Access Permissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Design Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Smoke Control NAE Design Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Field Controller Point Design Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Field Controller Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Field Controller Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Point List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Smoke Control NAE Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Application File Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Metasys System Extended Architecture Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Damper 6-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Weekly Dedicated Damper Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Weekly Testing of Dedicated Smoke Control Dampers - Metasys® SystemExtended Architecture Application Note1

Weekly Testing of Dedicated Smoke ControlDampers - Metasys® System ExtendedArchitectureApplication NoteDocument IntroductionSmoke control applications issue commands to controlled devices that pressurizeor depressurize an area of a building to minimize the spread of smoke. Thisdocument describes weekly testing of a dedicated smoke control damper in theMetasys system extended architecture.This application is designed to provide aweekly test of a dedicated smoke control damper automatically.Note: This application note only presents an example of one smoke controlstrategy. Since every building is unique, details of applying the strategyvary. This application note can assist you to develop an appropriateapplication for your project.Related DocumentationTable 1: Related DocumentationFor Information On Refer To LIT No./Part No.General smoke control informationSpecific wiring requirementsLogic programming for the DX-9100controllerSingle story enclosed shopping mallsmoke controlMulti-story building smoke controlWarehouse smoke controlWeekly testing of stairwellpressurization fansUL® 864 UUKL RequirementsMetasys System Extended ArchitectureSmoke Control System Technical BulletinMetasys System Extended ArchitectureSmoke Control Wiring Technical BulletinGX-9100 Software Configuration ToolTechnical BulletinSingle Story Enclosed Shopping MallSmoke Control with FSCS Override -Metasys System Extended ArchitectureApplication NoteMulti-Story Building Smoke Control withFSCS Override - Metasys SystemExtended Architecture Application NoteWarehouse Smoke Control with FSCSOverride - Metasys System ExtendedArchitecture Application NoteWeekly Testing of Dedicated StairwellPressurization Fans – Metasys SystemExtended Architecture Application NoteMSEA Smoke Control UL 864 UUKLCompliance ChecklistLIT-1201684LIT-1201753LIT-6364060LIT-1201736LIT-1201737LIT-1201738LIT-1201739LIT-1201754Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note3

Application OverviewThis application is designed to perform a weekly test of a dedicated smoke controldamper automatically. A schedule on the smoke control NAE commands theweekly dedicated damper test. A Trouble alarm is issued if the status feedbackindicator from the damper does not equal the damper command sent by the NAE.Note: Weekly dedicated damper test commands are issued at a Priority 7.A schedule on the Network Automation Engine (NAE) triggers the test, and thedamper is commanded Open for 2 minutes. If the damper does not open on within75 seconds of the controller’s Open command, the damper’s Trouble Light-Emitting Diode (LED) on the Firefighter’s Smoke Control Station (FSCS) isturned on. After the first 2 minutes has expired the damper is then commanded toClose. If the damper does not close within 75 seconds of the controller’s closecommand, the damper’s Trouble LED on the FSCS is turned on. After the2 minutes has expired, the test is disabled, the damper is restored to its normalstate, and the Retry logic will retry the test every 60 minutes until the test passes.Once the weekly test passes, the logic will disable the weekly test until its nextscheduled test time.The application contains logic that issues a Priority 7 command to Open thededicated damper for 2 minutes. After 2 minutes has passed, the logic then issues aPriority 7 command to Close the dedicated damper. After 2 minutes has passed, thePriority 7 command is released.If the damper does not reach the desired feedback within 75 seconds, a DamperFailure BACnet Binary Value object (BV) is latched to true. The Auto CommandRetry logic will retry the test every 60 minutes until the test passes. Once theweekly test passes, the logic will disable the weekly test until its next scheduledtest time.The Alarm Logic process is triggered if any of the following occurs:• a dedicated damper goes into alarm during the pressurization test. An alarmsituation would occur if the fan feedback did not equal the fan command.• the operator tests the alarm process manually.If the damper is in alarm and it is in the testing schedule and the Reset is false, theSonalert® is energized.Smoke Control Command PrioritiesAll automatic smoke control commands are issued at Priority 3. Fire fightermanual overrides, issued from the FSCS panel to pressurize or depressurize zones,are commanded at Priority 2. Fire fighter manual overrides, issued from the FSCSpanel to control individual fans and dampers, are commanded at Priority 1.Priority 3 commands are released when the smoke alarm is reset. Weekly testcommands are issued at Priority 7.4Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note

Automatic Smoke Control During Weekly TestingAutomatic smoke control operations that take place during a weekly dedicateddamper test always override the weekly dedicated damper test.Manual Smoke Control During TestingManual Smoke Control logic is initiated when a fire fighter turns the FSCS PanelEnable key from the Auto position to Fire Fighter Control position and changes apoint from the Auto setting on the FSCS panel. Manual smoke control operationsduring a weekly dedicated damper test always override the weekly dedicateddamper test.Assigning the Fire Object Category to Smoke Control ObjectsYou must assign every object used specifically for smoke control as a Fire object.This limits the control of smoke control devices and points to authorized Fireoperators.Use the pull down menu to assign the Fire object category (Figure 1).Figure 1: Assigning the Fire Object to Smoke Control Objects!WARNING: Risk of serious injury or death if a smoke controlobject is not assigned as a Fire object! In the event of a fire orsmoke control event, devices or points used for smoke controlthat are not assigned as Fire objects allow those devices andpoints to be controlled by non-fire authorized operators. It isimperative that every smoke control device or point be assignedas a Fire object.Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note5

Security Administration SystemThe Security Administration system authenticates and authorizes users ofMetasys® system extended architecture applications. The Security Administratoris a browser-based interface that manages all accounts.Use the Security Administrator System to authenticate and authorize users on theMetasys system extended architecture. The Security Administrator creates UserAccounts and Roles, and assigns access permissions to each user of the Metasyssystem extended architecture.Roles and User Accounts OverviewSecurity is based on User Accounts and Roles. Roles are groups of users with aspecific function within the Metasys system. To access the system, an individualprovides a user account and the correct password. Use letters, numbers, or symbolsto create user account passwords.Use the Login button from the logon prompt to send the user’s credentials. Aunique Session generates when the user’s credentials match the logonrequirements.UUKL Smoke Control Security Administration DetailsUUKL smoke control requires that only operators designated as fire operators beable to control the smoke control system. This required the creation of four newroles:1. Administrator - This is the highest level of control and allows site control of allHVAC and Fire features.Fire Administrator - This role is a fire manager levelsetting. It allows for full system control, including system modification orconfiguration.6Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note

2. Fire Administrator - This role is a fire manager level setting. It allows for fullsystem control, including system modification or configuration.Figure 2: Fire Administrator Access Permissions3. Fire User - This role is for most fire field technicians and allows system controland alarm acknowledgement, but not system modification or configuration.Figure 3: Fire User Access PermissionsWeekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note7

4. Fire Limited - This is the lowest of the permissions and only allows theoperator to view fire/smoke control devices and alarms.Security Administration Detailed ProceduresCreating a New RoleTo create a new role:1. From the Security Administration menu bar, select Insert > New Role. TheNew Role dialog box appears.2. Fill in the information.3. Click OK. The New Role appears in the tree.Creating a New User AccountTo create a new user account:1. From the Security Administration menu bar, select Insert > New User. TheUser Properties tab appears.2. Fill in the information.3. Click OK. The New User appears in the tree.Configuring User ProfilesTo configure a user profile:1. Select the user whom you wish to configure.2. From the menu bar, select Edit > Properties. The User Properties tab appears.3. Modify the desired user information.4. Click OK.Figure 4: Fire Limited Access Permissions8Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note

Configuring Role PropertiesTo configure role properties:1. Select the user whom you wish to configure.2. From the menu bar, select Edit > Properties. The User Properties tab appears.3. Select the Roles tab, then select an Available Role.4. Click Add. The selected role appears in the Assigned Role list box.5. Click OK.Assigning System Access PermissionsTo assign system access permissions:1. Select the user whom you wish to assign system access permissions.2. From the main menu, select Edit > System Access Permissions. The SystemAccess Permission dialog box appears.3. Select an available privilege.4. Click Add, then click OK to assign the user’s System Access Permissions.Design ConsiderationsThis field controller and Smoke Control NAE application, as it exists in theMetasys System Extended Architecture Smoke Control Library, complies with theUL 864 UUKL Smoke Listing. However, you are responsible for ensuring that theapplication complies with state and local regulations, and is approved by theAuthority Having Jurisdiction (AHJ). You are also responsible for configuring allof the smoke control components, as well as the programming of thosecomponents, in order to comply with the UL 864 UUKL Smoke Listing asdocumented herein.Smoke Control NAE Design ConsiderationsKeep the following design considerations in mind when designing a weeklydedicated smoke control damper test. In addition, please refer to the MetasysSystem Extended Architecture Smoke Control System Technical Bulletin(LIT-1201684).• The smoke control NAE reports critical alarms based on the alarm condition,and the alarm can only be cleared by resetting from the Intelligent FireController (IFC) panel or the Firefighter’s Smoke Control Station (FSCS).• You must define the hardware location for each object• You must name each object with a descriptive name that is unique in thesystem.Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note9

• A Programming In Progress BV point is required. You must set this point totrue any time you are making changes to the Smoke Control system. This willturn on the Programming In Progress LED on the FSCS to let a fire fighterknow that changes are being made and the system may not be fully functional.The point must be turned off when changes are complete.• Response time for individual smoke control components to achieve theirdesired state of operational mode, exclusive of control system response, shouldnot exceed the following time periods: 75 seconds for completion of dampertravel plus 90 seconds to annunciate. (Control system response is the time fromautomatic detection of a smoke condition to the issuing of an appropriatecommand to the equipment.)Field Controller Point Design ConsiderationsThere are a number of field controller that are UL® Listed for Smoke Control thatare suitable for use in this Metasys System Extended Architecture smoke controlapplication. This document addresses the field points that must be programmedinto the field controller, and does not specify which field controller to use. It is upto design engineer to select the field controller, and up to the installation technicianto program these required points into the controller.The following field controllers are UL® Listed for Smoke Control for Metasyssystem extended architecture systems:• AP-VMA Series• AS-AHU Series• AS-UNT Series• AS-VAV Series• DX 9100• A field controller needs to provide the following BV points.:• BV Command point for each damper• BV Open feedback point for each damper• BV Close feedback point for each damper• This application can be expanded for a building with more than one dedicatedsmoke control damper. For further details, please contact Field SupportServices in Milwaukee.• You must define tag names for all points.• You must define the hardware location for each object• You must name each object with a descriptive name that is unique in thesystem.10Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note

• An alarm occurs if the command does not equal the condition for any damperoutput. Each Binary Output (BO) for pressurization and exhaust outputs mustbe configured to have its own feedback (proof sensor) input. The FSCSindicates when a command does not equal condition.For UL compliance:• Response time for individual smoke control components to achieve theirdesired state of operational mode, exclusive of control system response, shouldnot exceed the following time periods: 75 seconds for damper operation at thedesired state plus 90 seconds to annunciate. (Control system response is thetime from automatic detection of a smoke condition to the issuing of anappropriate command to the equipment.)• For DX-9100 controllers only:• If DX Digital Inputs (DIs) are used for smoke control, then DI8 must bejumpered and mapped to the smoke control NAE as a normal state of On. IfDI8 is off, a critical alarm must be issued at the FSCS to indicate a binary inputfuse failure that must be fixed immediately, because the DI is no longeraccurate.• If DX Analog Outputs (AOs) are used for smoke control, then AnalogOutput 14 (AO14, voltage) must be wired to Analog Input 8 (AI8, voltage) andthe AI must be mapped to the smoke control NAE with a low alarm limit of20%. If the AI goes below this, it indicates the AO has failed because of ablown fuse, which drops the AO to 0V and the AI to 0% (low alarm). The DXis downloaded so that the AO is normally at 5V because its source point is anAnalog Constant (ACO) with a default of 50.For specific wiring requirements, refer to Metasys System Extended ArchitectureSmoke Control System Wiring Technical Bulletin (LIT-1201753).Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note11

Field Controller PointsField Controller SelectionThere are a number of field controllers suitable for use in this smoke controlapplication. See the Field Controller Point Design Considerations in the previoussection for a list of controllers. This document addresses the field points that mustbe programmed into the field controller, and does not specify which controller touse. It is up to design engineer to select the appropriate field controller, and up tothe installation technician to program these required points into the controller.Point ListTable 2 shows the hardware point requirements for the GX configuration.Table 2: Hardware I/O RequirementsInput RequirementsHardwareLocationName of ModuleEngineerUnitsReq?DescriptionAI8 AO-FUSE % Only for AI8 Fuse CheckDX-9100DI4 DMP1OPFB OFF/ON Yes Damper 1 Open FeedbackDI5 DMP1CLFB OFF/ON Yes Damper 1 Close FeedbackDI8 DI-FUSE OFF/ON Only forDX-9100Output RequirementsDI8 Fuse CheckHardwareLocationName of ModuleEngineerUnitsReq?DescriptionDO4 DMP1 OPN/CLO Yes Damper 112Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note

Smoke Control NAE ApplicationApplication File LocationThe Metasys system extended architecture Weekly Testing of Dedicated SmokeControl Dampers application for the smoke control NAE is located on the BranchProject Package (BPP) CD under the Metasys System Extended ArchitectureStandard Smoke Control Applications directory.Metasys System Extended Architecture ObjectsThis smoke control application resides on the smoke control NAE. Smoke controllogic screens are created with the Logic Connector Tool (LCT). System points,interlocks, MCOs, and alarms are configured with the System Configuration Tool(SCT). The damper used in the weekly test is Damper 6-1. The Damper 6-1 logicscreens show the logic for the damper. The Weekly Dedicated Damper Test screensshow the logic for the weekly test.The LCT logic is organized into two sections: Damper Control and WeeklyDedicated Damper Test. The Damper Control section controls Damper 6-1 beingused in the test. The Weekly Dedicated Damper Test section controls the actualdamper test and also includes Damper Alarm message screens and Damper TestSchedule screens.Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note13

Damper 6-1The Damper 6-1 main logic in Figure 5 has a Damper system logic block. TheDamper block’s inputs from the field controller are the Damper Commanded State,Damper Open Present Value, Damper Close Present Value, Zone PressurizeCommand, and the Zone Depressurize Command. Inputs from the FSCS are theOpen and Close toggle switch, the Fire Fighter Control Key, and a Damper PresentValue MCO. Outputs are the Open, Auto, Close, and Trouble LEDs on the FSCSand an MCO that commands the field controller points, including the AutoCommand Retry.Figure 5: Damper 6-1 Main Logic14Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note

The expanded Damper block logic in Figure 6 consists of two control systemblocks: the FSCS block and the VMA Trouble Control block. The FSCS blockcontrols the LEDs on the FSCS panel and commands the field controller. The FanTrouble Control block sets the damper’s Trouble LED on the FSCS.Figure 6: Damper 6-1 FSCS and Damper Trouble Control Main LogicWeekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note15

The expanded damper FSCS block logic is shown in Figure 7. The Open LED is litonly if the FSCS is in Fire Fighter Control and the damper is open. The Close LEDis lit only if the FSCS is in Fire Fighter Control and the damper is closed. The AutoLED is lit only if the damper toggle switch is not in the Open or Close setting.If the Fire Fighter Control Key is off, FSCS Request is set to 0. If the Fire FighterControl Key is on, FSCS Request is set to the following values depending on theposition of the damper toggle switch:• Open – 1• Auto – 0• Close – 2Figure 7: Damper 6-1 Expanded FSCS Block Logic16Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note

The expanded Damper Trouble Control block logic is shown in Figure 8. TheTrouble LED is lit if the damper is in smoke control and the damper has notreached its desired setpoint within 75 seconds or, if DX-9100 controllers are used,one of the DX fuses has blown. A damper is in smoke control if either the fieldcontroller is in pressurize or depressurize mode, or, the Fire Fighter Control Key ison and the FSCS toggle switch is set to Open or Close.Figure 8: Damper 6-1 Expanded Damper Trouble Control Block LogicThe Damper 6-1 Trouble Interlock Definition in Figure 9 includes status andreliability of the BI Fuse and AI Fuse, reliability of the exhaust air damper openand close status, a binary point that is set to true if the DX goes offline, and a pointthat sends an alarm if the damper fails.Note: The BI and AI fuses are only required if you are using a DX-9100.Figure 9: Damper 6-1 Trouble Interlock DefinitionWeekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note17

The Damper 6-1 MCO Action Table is shown in Figure 10. The Damper Autopoint is a binary point in the field controller to indicate that the damper is underautomatic smoke control. When a fire fighter moves the FSCS Damper 1 toggleswitch to Opens or Close, the Damper Auto point is turned off. The DamperCommand is a point in the field controller to control the damper.Figure 10: Damper 6-1 MCO Action Table18Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note

Weekly Dedicated Damper TestThe Dedicated Damper Test (Figure 11) system logic block inputs are two binarypoints that enable the damper Open and Close tests, three points from the fieldcontroller and a failure reset. Outputs are a binary point to indicate damper failure,and an MCO that commands the field controller to open or close the damper.Figure 11: Weekly Dedicated Damper Test Main ScreenThe Dedicated Damper Test block expanded logic is shown in (Figure 12).Figure 12: Dedicated Damper Test Block Expanded LogicWeekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note19

The Weekly Damper Test Interlock Definition (Figure 13) has a binary pointnamed Weekly Damper Test Enable that enables the weekly testing process whenthe schedule date and time is reached. An alarm message is sent to the NAE tonotify that the weekly test has been enabled.Figure 13: Weekly Damper Test Interlock Definition20Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note

The Weekly Damper Test Interlock Action Table in Figure 14 commands thedamper open at Priority 7 for 2 minutes. If the damper does not open within75 seconds, the Damper Failure point is set to true. After 2 minutes have expired,the Weekly Damper Test Interlock commands the damper closed at Priority 7 for2 minutes. If the damper does not close within 75 seconds, the Damper Failurepoint is set to true. After 2 minutes have expired, the Weekly Damper TestInterlock releases the Priority 7 commands. The Damper Failure is latched for onehour, then the damper test automatically re-enabled and another damper test isstarted. This cycle continues until the damper test is completed. Once the testpasses, it then resets the logic for the next scheduled damper test. .Figure 14: Weekly Damper Test Interlock Action TableWeekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note21

If the damper test fails, the failure is latched by the damper logic in Figure 12.After correcting the reason the damper failed, you must unlatch the failure. TheDamper Failure Reset Interlock Definition is shown in (Figure 15). Ten secondsafter Damper Failure Reset is set to true, this interlock will set Damper FailureReset back to false. The Weekly Dedicated Damper Test will release the latchedalarm while Damper Failure Reset is true. The Damper Failure is latched until theDamper Failure Reset is manually set to true.Figure 15: Damper Failure Reset Interlock DefinitionThe Damper Failure Reset Interlock Action Table is shown in Figure 16. When thedamper test has finished, the damper reset has to be manually placed in active, itthen resets itself to inactive and resets the logic for the next scheduled damper test.Figure 16: Damper Failure Reset Action TableThe Terminate Testing Interlock Definition in Figure 17 terminates the test if anyof the following conditions happen:• automatic smoke mode begins• pressurization or depressurization is turned on• the damper fails to meet command• the FSCS switch for the point is in any position other than Auto22Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note

Figure 17: Terminate Testing Interlock DefinitionThe Terminate Testing Interlock Action Table is shown in Figure 18. When thedamper test has been terminated, the interlock stops the Damper Test Completemessage, and then releases the damper test. This triggers the Damper TestTerminated alarm message. The damper failure reset will then rerun the dampertest every hour until the test passes. Once the test passes, it resets the logic for thenext scheduled damper test.Figure 18: Terminate Testing Interlock Action TableWeekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note23

The Damper Auto Status Interlock Definition screen is shown in Figure 19. Duringa weekly damper test, this interlock prevents a trouble condition, related to aweekly damper test failure, from lighting a Trouble LED when:• the damper switch is in any position other than Auto• auto smoke control mode is invoked• manual smoke control is invokedThe Trouble LED will light if any of the above conditions result in a smoke controltrouble condition not related to the weekly test.After the Auto condition clears itself, the Trouble LED will relight with the troublefrom the Weekly Test Failure.Figure 19: Damper Auto Status Interlock Definition24Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note

. The Damper Command MCO Action Table is shown in Figure 20. The DamperAuto point is a binary point in the field controller to indicate that the damper isunder automatic smoke control. While the test is running, the Damper Auto flag isfalse. The MCO also sets the Damper Command point in the field controller to thedesired value.Figure 20: Damper Command MCO Action TableWeekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note25

Weekly Dedicated Damper Test Alarm ScreensThe True/False Dedicated Weekly Damper Test Alarm screens show the alarmmessages that result from various alarm conditions. These messages are generatedat the smoke control NAE, and include Damper Failure, Weekly Damper TestEnable, Damper Failure Reset, and Weekly Damper Test Complete.If the damper does not reach the desired feedback within 75 seconds, a DamperFailure BV is latched to true, a Damper Feedback Does Not Match TheCommand alarm message is generated at the smoke control NAE. The alarmscreen is shown in Figure 21.Figure 21: Damper Failure Alarm Screen26Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note

When the scheduled date and time to execute the weekly test is reached, theweekly test begins. In this example, the Damper 6-1 Dedicated Weekly TestEnabled alarm message is generated at the smoke control NAE. The alarm screenis shown in Figure 22.Figure 22: Weekly Damper Test Enable Alarm ScreenWeekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note27

If the damper test fails, the damper test interlock is reset and a Damper 6-1Failure Reset alarm message is generated at the smoke control NAE. The alarmscreen is shown in Figure 23.Figure 23: Damper Failure Reset Alarm Screen28Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note

When the weekly dedicated damper test is complete a Weekly Dedicated DamperTest Completed alarm message is generated at the smoke control NAE. The alarmscreen is shown in Figure 24.Figure 24: Weekly Damper Test Complete Alarm ScreenWeekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note29

Weekly Test ScheduleThe Weekly Test Schedule, shown in Figure 25, is used to configure the day andtime the Weekly Damper Test executes.Figure 25: Weekly Schedule Screen30Weekly Testing of Dedicated Smoke Control Dampers - Metasys® System Extended ArchitectureApplication Note