FIREFINDER-XLS™ CONTROL PANEL · principles of pressurization and airflow. The basic concept of pressurization is to create air pressure differences between the smoke zone and its

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Smoke Control System Manual

FIREFINDER-XLS™ CONTROL PANEL

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Table of Contents

Introduction ............................................................................................................................1

Definitions ..............................................................................................................................1

Principles of Smoke Control ...................................................................................................2

Smoke Control Systems.........................................................................................................4Stairtower Pressurization System .............................................................................................................. 5Elevator Smoke Control .............................................................................................................................. 7Zoned Smoke Control ................................................................................................................................. 7Smoke Control in Large Volume Spaces, Malls and Atria ........................................................................... 8

Building Equipment and Control .............................................................................................9Smoke Control System Emergency Condition Operation ......................................................................... 10Smoke Control System Non-emergency Condition Operation .................................................................10Typical Relay Output Connections to the HVAC Equipment .....................................................................12Override Control Relay Sample Program ..................................................................................................16

Equipment Requirements..................................................................................................... 16

System Block Diagrams ....................................................................................................... 17

Typical Application Programming Flow Chart (Figure 16) ..................................................... 18

XLS Limitations for Smoke Control Systems ........................................................................ 19

Reference List of Installation Instructions ............................................................................ 19

Requirements for the FSCS ................................................................................................. 19Connection to the Remote Annunciator .................................................................................................... 19Power Consumption ................................................................................................................................. 20Wiring Specifications ............................................................................................................................... 20Mechanical Specifications ........................................................................................................................ 20Approved FSCS Manufacturers ............................................................................................................... 20

Sample Smoke Control Sequence ........................................................................................20

Building Application Sample ..................................................................................................22

Starting a Smoke Control Sequence ....................................................................................25Logic to Start a Smoke Zone Sequence ................................................................................................... 25Smoke Enable Logic for the Five Zone Sample Building Application ....................................................... 26Logic Control for Each Fan/Damper .......................................................................................................... 26

Input Section ........................................................................................................................28Automatic Activation Due to Alarm ......................................................................................................... 28Automatic Activation Due to Initial Conditions ........................................................................................ 28Manual Control ......................................................................................................................................... 28Automatic Activation Due to Time Based Function .................................................................................. 28

Output Section .....................................................................................................................31

End Verification Process .......................................................................................................31

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INTRODUCTIOINTRODUCTIOINTRODUCTIOINTRODUCTIOINTRODUCTIONNNNN

The XLS family of fire alarm panels (XLS, XLS withVoice) can be configured as a smoke control stationto comply with UL/UUKL (UL 684) and NFPA 92A2000 Edition and ULC/ORD-C100-1992 requirements.This gives the XLS system the capability to monitorand override smoke control systems and equipmentprovided at designated locations within the samebuilding. The smoke control system is primarily usedin high rise structures where control of smoke in thebuilding is critical to life safety and proper egress inthe event of a fire situation.

This document discusses the concept of smoke controland the XLS hardware requirements. In addition, itprovides sample program configurations for compliancewith the UL/UUKL (UL 684), NFPA 92A 2000 Editionrequirements. The XLS control panel is listed fordedicated systems and non-dedicated systems.

All fires produce smoke that will spread throughoutthe building if it is not controlled, thereby endangeringlife and damaging property.

A smoke control system should be designed to inhibitthe flow of smoke into means of egress, exit passage-ways or other similar areas of the building. Limitingthe fire size by providing automatic sprinklers or othermeans will generally be necessary for effective andeconomical control of smoke in most occupancies.The smoke control system should be activated duringthe early stages of a fire emergency to maintain atenable environment in the area to be protected. Thesmoke control system should be functional duringperiods of evacuation and should not counteract otherlife safety systems.

The purposes of a smoke control system are to:

• Maintain a tenable environment in the means ofegress during the time required for evacuation.

• Control and reduce the migration of smoke fromthe fire area.

• Provide conditions outside the fire zone that willassist emergency response personnel inconducting search and rescue operations to locateand control the fire.

• Contribute to the protection of life and reductionof property loss.

DEFINITIONSDEFINITIONSDEFINITIONSDEFINITIONSDEFINITIONS

The definitions of the following terms are derivedfrom NFPA 92A, 2000 edition, Section 1-4 and NFPA92B, 2000 edition, Section 1-4, as it applies to smokecontrol strategy.

Atrium: A large volume space created by a flooropening or series of floor openings connecting two ormore stories that is covered at the top of the series ofopenings and is used for purposes other than en-closed stairways, elevator hoistways, or escalatoropenings; or utility shaft used for plumbing, electrical,air-conditioning, or communicating facilities.

Communicating Space: Spaces within the buildingthat have an open pathway to a large volume spacesuch that smoke from a fire in a communicating spacecan move unimpeded into the large volume space.

End-process Verification: A process in which fansand dampers are monitored using vanes, sails,pressure differential switches, and degree of openingswitches to verify that the fans and/or dampers haveperformed their required end state.

Fire Fighter’s Smoke Control Station (FSCS): Thisstation has monitoring and overriding capability oversmoke control systems and equipment provided atdesignated location(s) within the building for the useof the fire department.

Large Volume Space: An uncompartmented space,generally two or more stories in height, within whichsmoke from a fire either in the space or in a communi-cating space can move and accumulate withoutrestriction.

Pilot-type Lamp: General term for an indicatingdevice that shows power ON or OFF; such as an LED,incandescent lamp, etc.

Pressurized Stairtowers: A type of smoke controlsystem in which stair shafts are mechanically pressur-ized with outdoor air to keep smoke from contaminat-ing them during a fire incident.

Proof–Sensor: The signal provided by the monitoringdevice to determine if the fan and/or damper hasachieved the required end state. This is accomplished

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by monitoring the circuit of the fire alarm panelconnected to the vanes, etc., to see if it changes statedue to increased or decreased airflow within thespecified time.

Smoke: The airborne solid and liquid particulates andgases evolved when a material undergoes pyrolysis orcombustion, together with the quantity of air that isentrained or otherwise mixed into the mass.

Smoke Barrier: A membrane, either vertical orhorizontal, such as a wall, floor, or ceiling assembly,that is designed and constructed to restrict themovement of smoke.

Smoke Control Mode: A predefined operationalconfiguration of a system or device for the purpose ofsmoke control.

Smoke Control System: An engineered system thatuses mechanical fans to produce airflow and pressuredifferences across smoke barriers to limit and directsmoke movement.

Smoke Control Zone: A space within a buildingenclosed by smoke barriers, including the top andbottom, that is part of a zoned smoke control system.

Smoke Damper: A device meeting the requirementsof UL 555S designed to resist the passage of air orsmoke.

Smoke Exhaust System: A mechanical or gravitysystem intended to move smoke from the smokezone to the exterior of the building; including a smokeremoval, purging and venting system, as well as thefunction of exhaust fans utilized to reduce pressure ina smoke zone. Maintenance of a tenable environmentin the smoke zone is not within the capability of thesesystems.

Smoke Layer: The accumulated thickness of smokebelow a physical or thermal barrier.

Smoke Layer Interface: The theoretical boundarybetween a smoke layer and smoke-free air as illus-trated in Figure 1. In practice, the smoke layer interfaceis an effective boundary within the transition bufferzone, which can be several feet thick. Below thiseffective boundary, the smoke density in the transitionzone decrease to zero.

Smoke Zone: The smoke control zone in which fire islocated.

Stack Effect: The vertical airflow within buildingscaused by the temperature difference betweenbuilding interior and exterior.

Tenable Environment: An environment in which thequantity and location of smoke is limited or otherwiserestricted to allow for ready evacuation through thespace.

Zoned Smoke Control: A smoke control system thatincludes smoke exhaust for the smoke zone andpressurization for all contiguous smoke control zones.The remaining smoke control zones may also bepressurized.

S m o ke L a ye r

Tra n s itio n Z o n e

C e ilin g

S m o ke L a ye r In te rfa ce

F irs t In d ica tio n o f sm o ke

Figure 1Smoke Layer Interface

PRINCIPLES OF SMOKE CONTRPRINCIPLES OF SMOKE CONTRPRINCIPLES OF SMOKE CONTRPRINCIPLES OF SMOKE CONTRPRINCIPLES OF SMOKE CONTROLOLOLOLOL

Smoke flow frequently follows the overall air move-ment within the building. Smoke can spread to areasadjacent to the smoke zone through openings such asconstruction cracks, ducts, and open doors. Theprincipal factors causing smoke to spread outside thesmoke zone are:

• Stack effect• Temperature effect of fire• Weather conditions, particularly wind and

temperature• Mechanical air-handling system

These factors cause pressure differences across areapartitions that can result in the spread of smoke.Controlling and maintaining these pressure differ-

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ences can alter the movement of smoke. The dilutionof smoke in the fire area of a compartmented buildingis not a means of achieving smoke control. Smokecontrol cannot be achieved simply by supplying air tothe smoke zone and exhausting air from the smokezone. Smoke control can be accomplished using theprinciples of pressurization and airflow.

The basic concept of pressurization is to create airpressure differences between the smoke zone and itsadjacent area. By creating a higher pressure on theareas adjacent to the smoke zone, air moves into thesmoke zone thus preventing the smoke from dispers-ing throughout the building.

Airflow can also be used to control smoke fromspreading to adjacent areas. This principle is com-monly used to control smoke movement throughopen doorways. The flow of air to the smoke zonemust be of sufficient velocity to prevent smoke fromgoing through the opening that smoke-free air isentering. Large quantities of intake air are required forthis method of smoke control

It is necessary to consider the maximum and mini-mum allowable pressure difference across boundariesof a smoke controlled zone. The maximum pressuredifference should not result in door-opening forcesthat exceed the requirements of NFPA 101 (LifeSafety Code) or local codes and requirements. Theminimum pressure difference should be such thatthere is no significant smoke leakage during buildingevacuation. For the smoke control system to beeffective, the pressure needs to be sufficient enoughthat it is not overcome by forces of wind, stack effect,or buoyancy of hot smoke.

The following table of suggested minimum designpressure differences was developed for gas tempera-tures of 1700°F. To calculate pressure differences forgas temperatures other than 1700°F, refer to themethod described in Appendix A of NFPA 92A, Rec-ommended Practice for Smoke Control Systems,2000 edition.

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Similarly, the pressure difference across doors shouldnot exceed the values given in Table 2 so that the doorcan be operated while the pressurization system isoperating. These values are based on the 30lbf (133N)maximum force to begin opening the door stipulatedin NFPA 101 for a door height of 7 ft., where the doorknob is 3 inches from the door knob side of the door,and the door is hinged on one end. For other doorsizes, refer to the calculation procedures provided inthe ASHRAE publication, Design of Smoke Manage-ment Systems.

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23 63 04 44 84

6 54.0 04.0 73.0 43.0 13.0

8 14.0 73.0 43.0 13.0 82.0

01 73.0 43.0 03.0 82.0 62.0

21 43.0 03.0 72.0 52.0 32.0

41 03.0 72.0 42.0 22.0 12.0

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The air supply source location (supply air intake)should be separated as much as practically possiblefrom all building exhaust, outlets from smoke shafts,roof smoke and heat vents, open vents from elevatorshafts, and other building openings that expel smokefrom the building. Because hot smoke rises, consider-ation should be given to locating the supply air intakesbelow such critical openings.

In a stairtower pressurization system, the possibilityexists for smoke feedback into the stairtower fromsmoke entering the stairtower through pressurized fanintakes. Therefore, the capability of automatic shut-down in such an event should be considered.

Propeller fans or centrifugal fans (in-line axial fans) canbe used to provide the supply air intake in single ormultiple injection systems.

• A single injection system is one that haspressurization air supplied to the stairtower at onelocation. The most common injection point is atthe top, as illustrated in Figure 2. Limitations of asingle injection system should be considered,especially when being applied in stairtowerpressurization.

• A multiple injection system can be used toovercome the limitation of the single injectionsystem. Figures 3 and 4 are examples of twodifferent multiple injection systems. Thepressurization fans can be located at ground level,roof level, or at any location in between.

Many multiple injection systems are built with supplyair injection points on each floor. These systemsrepresent the ultimate method of preventing loss ofpressurization air through a few open doors. For adesign with injection points more than three storiesapart, the designer should use a computer analysissuch as one found in the ASHRAE publication, Designof Smoke Management Systems. This is to ensurethat the loss of pressurization air through a few opendoors does not lead to substantial loss of stairtowerpressurization.

SMOKE CONTRSMOKE CONTRSMOKE CONTRSMOKE CONTRSMOKE CONTROL SOL SOL SOL SOL SYYYYYSSSSSTEMSTEMSTEMSTEMSTEMS

There are two kinds of smoke control systems—Dedicated and Non-dedicated.

Dedicated systems are intended for the purpose ofsmoke control only. These separate systems of air-moving and distribution equipment do not functionunder normal building operating conditions. Upon

R o o f L e v e l

C e n t r i f u g a l F a n

R o o f L e v e l

D u c t S h a f t

D u c t

C e n tr ifu g a l fa n

Figure 2Stairtower Pressurization By Single Top Injection

Figure 3Stairtower Pressurization By Multiple Injection WithThe Fan Located At Ground Level

Figure 4Stairtower Pressurization By Multiple Injection WithThe Roof-mounted Fan

R o o f L e v e l

D u c t S h a f t

D u c t

C e n t r i f u g a l f a n

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activation, these dedicated systems operate specifi-cally to perform the smoke control function.

Non-dedicated systems are those that share compo-nents with some other building systems, such as theHVAC system. Activation causes the system tochange its mode of operation to achieve the smokecontrol objectives.

The means for verifying system integrity during a non-emergency condition varies depending upon whetherthe smoke control system is dedicated or non-dedicated system. Non-dedicated smoke controlcomponents consist of regularly operated HVACcomponents within a building. Therefore, the fact thatthe non-dedicated system properly controls theenvironment is considered an acceptable means ofmaintaining system integrity.

On the other hand, dedicated smoke control compo-nents are used solely for the smoke control functionand do not operate in non-emergency conditions.Dedicated system equipment is therefore required toincorporate an automatic weekly self-test of eachsmoke control function. The self-test consists of thesmoke control system automatically commanding theassociated function to operate and expecting, within aspecified time, that the associated proof sensor willoperate. A valid proof sensor operation is not requiredto be annunciated; however, the lack of the expectedproof sensor operation must produce an audibletrouble signal and indicate the specific device whichfailed to operate.

Dedicated and non-dedicated smoke control systemseach have two separate types protection—Shaftprotection and Floor protection.

• Shaft protection can be further divided into astairtower pressurization system and an elevatorhoistway system.

• Floor protection encompasses several variationsof zoned smoke control that is dependent onbuilding and fire coded requirements as well asspecific occupancy and life safety requirements.

Smoke control on Large volume spaces and Commu-nicating spaces is primarily achieved by controlling thedescent rate of the smoke layer. Design objectivesand methods for smoke control in large volumespaces depends on the protection goals. Consider-ation should be given to the following factors:

• Type and location of occupancies within andcommunicating with the large volume space. Thisincludes the height, size, and arrangement ofopenings between the occupancy within thecommunicating space and the large volumespace.

• Barriers that separate the communicating spacefrom the large volume space

• Egress routes from the large volume space andany communicating space

• Areas of refuge• Design based on type of fire used to calculate the

smoke production.

Stairtower Pressurization SystemThe purpose of stairtower pressurization is to providea tenable environment within the stairtowers in theevent of a fire emergency and to provide a stagingarea for fire fighters. To limit smoke infiltration, apressure difference needs to be maintained betweenthe fire floor and the stairtower. Performance ofstairwell pressurization systems can be improved byproviding a fire floor exhaust. This reduces the pres-sure on the fire floor, thus increasing the pressure inthe stairtowers. This type of system can be part of azoned smoke control system. An engineering analysisof the stack and wind effects should be performedbefore considering this method.

There are two types of stairtower pressurizationsystems—Non-compensated and Compensated.

Non-compensated systems actuate single speed fansthat inject supply air to pressurize the stairtower. Thisprovides one pressure difference with doors closedand another pressure difference with doors open.

Compensated systems are capable of adjusting tovarious combinations of open or closed doors whilemaintaining a positive pressure difference across theopenings. Pressure difference is maintained by eithermodulating the supply airflow or by relieving theexcess pressure from the stairtower. The responsetime should be closely monitored so that the pressuredoes not fall below the values given in Table 1. Thelocation of the exhaust inlet must be taken intoaccount to ensure that the supply outlets into thestairtower are not short-circuited.

Figure 5 illustrates a compensated system thatmaintains stairtower pressurization by modulating thesupply airflow. In this system, the capacity of thesupply fan must provide the minimum air velocityrequired to pressurize the stairtower when a specifiednumber of doors are opened. The flow rate of air intothe stairtower is controlled by modulating the bypassdamper through pressure sensors that sense thepressure difference between the stairtower and thebuilding. The pressure difference between the buildingand the stairtower is maintained by controlling the airintake and the bypass air (air that passes through thebypass around the fan). Supply airflow modulation canalso be achieved by varying fan speed, inlet vanes,variable pitch fan blades, or number of fans in opera-

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E x te r io r W a ll

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th e s ta ir to w e r a n d b u ild in g in te r io r

2 . G r o u n d le v e l fa n is s h o w n . F a n c o u ld

b e lo c a te d a t a n y le v e l.

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b e lo c a te d a t a n y le ve l.

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Figure 6Stairtower Pressurization With Vent To The Outside

Figure 5Stairtower Pressurization With Bypass Around Supply Fan

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tion. As with any system, response time of thecontrols should be considered.

Another compensated system of stairtower pressur-ization is overpressure relief. Pressure that builds up inthe stairtower as doors are closed is relieved directlyto the outside of the building. The pressure differencebetween the building and the stairtower is achievedby adjusting the amount of air relieved. This type ofsystem is subject to the adverse effect of the wind;therefore, the use of windbreaks or windshields isrecommended.

Overpressure relief can be accomplished by one ofthe four following methods:

1. Barometric dampers with adjustable counterweights that will allow the dampers to open whenthe maximum interior pressure is reached. Figure6 illustrates pressure relief using barometricdampers.

2. Motor-operated dampers with pneumatic orelectric operators. These dampers have differentialpressure controls located in the stairtowers.

3. Venting the stairtower by automatically openingthe stairtower door to the outside at ground level.

4. Exhaust fan activation to prevent excessivepressure buildup in the stairtower when all doorsare closed. The fan should be controlled by adifferential pressure sensor so that it will notactivate when the pressure difference betweenthe building and the stairtower falls below aspecified level. This prevents the fan from pullingsmoke into the stairtower when a number of opendoors have reduced the stairtower pressurization.As with any fan that can be adversely affected bythe by wind, wind breaks or windshields arerecommended.

Elevator Smoke ControlElevator hoistways have proven to be a readily avail-able conduit for movement of smoke throughout abuilding. Since most elevator doors are not tight-fittedand elevator hoistways have openings in their top,smoke can readily penetrate the elevator shaft andcan spread due to building stack effect. Severalmethods of correcting this problem have been pro-posed and investigated. These include:

• Exhaust of the fire floor• Pressurization of elevator lobbies

• Construction of smoke tight lobbies• Pressurization of elevator hoistways• Closing elevator doors after automatic recall

Special consideration must be given to the open ventat the top of the elevator hoistways because this mayhave an undesirable effect on elevator smoke control.Since smoke has the tendency to migrate into elevatorhoistways, the use of elevators for egress purposes isnot suggested.

Zoned Smoke ControlPressurized stairtowers are intended to inhibit smokefrom infiltrating the stairtower. However, smoke in abuilding can flow through cracks in floors and parti-tions and through other shafts to threaten life andproperty at locations that are remote from the fire. Theconcept of zoned smoke control is intended to limitthis type of smoke movement within the building.

Some buildings can be divided into a number ofsmoke zones, each separated by smoke barriers (suchas walls, floors, and doors that can be closed to inhibitthe movement of smoke). A smoke control zone canconsist of one or more floors. Figure 7 illustratesvarious arrangements of smoke control zones.

In an event of a fire emergency, mechanical fansactivate to create pressure differences to limit thespread of smoke. This will increase the concentrationof smoke in the smoke zone, making the smoke zoneuntenable. Accordingly, in zoned smoke controlsystems, building occupants should evacuate thesmoke zone as soon as possible after fire detection.Smoke control zones should be kept as small aspracticable so that their evacuation can be easilyachieved and the quantity of air to pressurize theadjacent zone can be kept at a manageable level.Special consideration should be taken in cold climates.Introduction of large quantities of outside air cancause serious damage to building systems; therefore,the use of an emergency preheat system to temperincoming air should be considered to prevent or limitthe damage.

Fire signals from protective signaling systems can beused to activate appropriate zoned smoke controlsystems. The use of fire signals requires that alarmzones be arranged to coincide with smoke controlzones to avoid activation of the wrong smoke controlsystem(s).

Unless venting or exhaust is provided in the firezones, pressure difference will not develop. Pressureequalization between the fire zone and unaffectedzones will become established and there will benothing to prevent the spread of smoke in all zones.

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Figure 7Arrangements Of Smoke Control Zones

Smoke Control in Large Volume Spaces,Malls, and Atria

Smoke produced in a large volume open space isassumed to be buoyant, rising in a plume above thefire, and striking the ceiling or stratifying (layering asshown in Figure 1) due to temperature inversion. Theopen space can be expected to fill with smoke as thesmoke layer interface descends. The descent rate ofthe smoke layer interface depends on the rate atwhich smoke is supplied to the smoke layer from theplume.

A stable position for the smoke layer interface can beachieved by exhausting the same rate of smoke as issupplied to the smoke layer. This also delays the rateof descent of the smoke layer. The main designobjectives for large-volume smoke control (and itscommunicating spaces) include the following:

• Maintain the smoke layer interface to apredetermined elevation.

• Maintain a tenable environment on all exit accessroutes for a sufficient time to allow all occupantsto reach an exit or area of refuge.

• Limit the spread of smoke from the fire zone intoother zones that might be exits, exit accessroutes, areas of refuge, or communicating spaces.

• Provide adequate visibility to allow firedepartment personnel to approach, locate, andextinguish the fire.

• Exhaust smoke that has accumulated in the largevolume space within a specified time.

• Limit the smoke layer temperature.

The design options available depend on the space inwhich the smoke is to be managed and the source ofsmoke. The primary method of controlling smoke in

+

-

+

+++

++

--

-

-+

+

++++

+

++++

-

+

+++

+++++

+++

-

-

-

-

+

+++++

+

++

+

(a) (b)

(c) (d)

(e)

} Smoke Zone {

} Smoke Zone {

} Smoke Zone

Note:

In the examples in Figure 7, the

smoke zone is indicated by a

minus sign and the pressurized

spaces are indicated by a plus

sign.

Each floor can be a smoke control

zone, as in (a) and (b); or, a smoke

zone can consist of more than one

floor, as in (c) and (d).

All nonsmoke zones adjacent to

the smoke zone can be

pressurized, as in (b) and (d).

A smoke zone can also be limited

to a part of a floor, as in (e).

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large volume areas and communicating spaces is toremove the smoke to limit the depth of accumulationwithin that space and/or exhaust the large volumespace so that there is a negative pressure withrespect to the communicating space. The exhaust rateestablished is based on a design fire. Factors to beconsidered are:

• The exhaust quantity as determined by the designclear height of the smoke layer

• Large volume space that has a large height towidth ratio

For more information about smoke control for a largevolume space, refer to NFPA publication, NFPA 92B,Smoke Management in Malls, Atria, and LargeAreas, 1995 edition. This document will provide allnecessary calculation procedures and requirementsfor smoke control in a large volume space.

BUILDING EQUIPMENT BUILDING EQUIPMENT BUILDING EQUIPMENT BUILDING EQUIPMENT BUILDING EQUIPMENT AND CONTRAND CONTRAND CONTRAND CONTRAND CONTROLOLOLOLOL

A smoke control system is defined as an engineeredsystem that uses mechanical fans to produce airflowand pressure differences across smoke barriers tolimit and direct smoke movement (NFPA 92A 2000ed., 1-4). Each smoke control system must provide aFire Fighter’s Smoke Control Station (FSCS) that hasfull monitoring and manual control capability over allsmoke control systems and equipment.

The FSCS should have the highest priority control overall smoke control systems and equipment. If there aremanual controls (such as Hands-Off-Auto and Start-Stop switches located on the fan motor controller,etc.) provided at a remote location from the FSCS, thecontrol mode selected at the FSCS should prevail.FSCS controls should not override or bypass controlsintended for the following purposes:

• To protect against electrical overloads• To provide for safety of personnel• To prevent major system damage

The FSCS should contain a building diagram represen-tation that clearly indicates the type and location of allsmoke control equipment and provides the actualstatus of smoke control equipment that is activated orhas the capability of being activated.

In addition to compliance with NPFA 92A, all smokecontrol hardware systems and equipment mustcomply with the requirements of UL 864, except fornormal operation and electrical supervision as modified:

• Standby Power for Smoke Control SystemEquipment is optional. If the equipment alsoprovides fire alarm service, then standby poweris required.

• The circuits connecting to devices that initiateautomatic control must consist of one of thefollowing:

1. A supervised fire initiating circuit.

2. A supervised circuit connected to a zone outputof a Listed Fire Alarm Control Panel (FACP).

3. An unsupervised circuit connected to a zoneoutput of a Listed FACP with each unitmounted adjacent to the other and the inter-connecting wiring run in conduit.

Automatic activation of the smoke control system isinitiated by a specific fire detection device withoutmanual intervention. Fire detection devices includeautomatic devices such as smoke detectors,waterflow, and heat detectors.

Manual activation of the smoke control system coversall means whereby authorized personnel activate oneor more smoke control systems using control pro-vided for that purpose. For manual activation, thelocation of the control can be at the controlled device,at the local control panel, or at the fire fighter’s centralcontrol station. The specific location should be asrequired by the authority having jurisdiction.

Manual fire alarm pull stations should not be used toactivate smoke control strategies unless the smokecontrol strategy is common to all programmedstrategies, such as stairwell pressurization. Thisreasoning is based on the likelihood that a personsignaling a fire alarm from a pull station may beoutside the smoke zone of the fire origin.

Smoke control system activation should be initiatedimmediately after the appropriate automatic or manualcommand is initiated. The smoke control systemshould activate individual components in the sequencenecessary to prevent damage to the fans, dampers,ducts, and other equipment. The total response timefor individual components to achieve their desiredstate should not exceed the following:

• Fan operation at the desired state.... 60 seconds• Completion of damper travel ……… 75 seconds

A prime concern of any emergency signaling systemis maintaining system integrity. This is traditionallydone by electrical supervision of the wiring. However,because the proper operation of fans and dampersconnected to the output circuits may involve mechani-cally and pneumatically operating parts, end processverification is considered an acceptable alternative.

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Smoke control system equipment is required toverify that a fan or damper has reached its requiredend function. These end-process verification devicesare connected back to an input monitoring circuit ofthe smoke control system that is programmed toexpect a signal within a specified time after anautomatic or manual activation. Annunciation of theend-process sensor (proof sensor) is not required ifthe proof sensor operates as intended. If the proofsensor fails to operate, an audible trouble signalmust energize.

Smoke Control System Emergency ConditionOperationAutomatic activation of smoke control for a largevolume area or zoned smoke control location can beinitiated by smoke detectors (beam-type, spot-type, orother detectors found to be suitable) and other firedetection devices specifically situated to monitorsmoke in the specified area. Activation of any zone ofthe building (including large volume spaces) shouldactivate stairtower pressurization.

Once an automatic activation has occurred, subse-quent alarm signals that would normally result inautomatic actuation of a smoke control strategy willbe annunciated only. This avoids the possibility ofdefeating any smoke control strategies that arealready in process.

Manual activation or deactivation of zoned smokecontrol systems and equipment should have priorityover automatic activation of smoke control systems,as well as other sources of automatic control withinthe building. A manual command should have thecapability to override any partial or fully automaticactivation that may be in process. Manual activationmust only be performed by authorized personnel inresponse to a known emergency situation.

Smoke Control System Non-emergencyCondition OperationThe means for verifying system integrity during a non-emergency condition varies depending on the type ofsmoke control system.

• For a non-dedicated system, which consists ofHVAC components within the building that areoperated normally, the fact that the non-dedicatedsystem properly controls the environment is anacceptable way of maintaining system integrity.

• For a dedicated system, which is used solely forthe smoke control function and is not operatedduring non-emergency conditions, an automaticweekly self-test of each smoke control functionis required. The self-test consists ofautomatically commanding associated functionsto operate and expecting, within a specifiedtime, that the associated proof sensor willoperate. A valid proof sensor operation is notrequired to annunciate, however the lack of anexpected proof sensor operation must producean audible trouble signal and indicate the specificdevice which did not operate.

Electrical supervision is required up to the input of thetrunk-connected devices involved with electricalsensing and control of the HVAC controller, as shownin Figure 8. Electrical supervision failure must beannunciated within 90 seconds.

Electrical supervision by the XLS system is shown inFigure 9.

11

Figure 9XLS Smoke Control System Electrical Supervision

NOTE:Refer to the HTRI-R and relay base installationinstructions for wiring diagrams showing connectionof the relay outputs to these modules.

Display and

Manual Controls

FireFinder-XLS

FACPInitiating

Devices

Motor Controller

End verification

Feedback

SmokeControl

TransponderPoint LogicController

End ProcessDevice

Relay Bases, HTRI-RSIM-16, OCM-16

Relay Driver

Fans, Dampers,HVAC

controllers,etc.

Flow switches,

vanes, sails, etc.

HTRI-D

switchFire Detection

Devices

Supervised

Unsupervised

Operator'sTerminal(FSCS)

SmokeControl

Transponder

Point LogicController

Supervised

Mechanical

Hydraulic

Pneumatic

Output suchas a relay

Electrical supervision not required.Integrity maintained by comfort level(non-dedicated) or weekly test (dedicated).Operation verified by end-process verification.

MotorController

Figure 8Connection For Electrical Supervision

12

OVERLOADPROTECTION

MOTORDISCONNECT

MOTORCONTROLLER

COIL

VARIOUS SENSORSAND OVERLOAD

PROTECTIONCIRCUITS

THIS CIRCUITRY CANDISABLE THE FAN IF

A FAULT IS DETECTED

MOTOR

FAN

TRANSFORMERCIRCUIT

RELAY OUTPUTOF HTRI-R AND

RELAY BASES(XLS Control Relay)

NC

COM

FUSE

LOCAL HANDS OFFAUTO SWITCH

ON

OFF

AUTONO

CIRCUITPROTECTION

(POWER)

L1

L2

L3

Figure 10Typical Relay Output Connection To HVAC Equipment

Note:Refer to the HTRI-R and relay baseinstallation instructions for relayoutput pin-outs and contact ratings.

When a smoke control strategy is initiated to acti-vate the fan, the XLS Control Relay is energized toconnect the control coil of the fan controller to thepower (provided there are no electrical and mechani-cal failures on the fan), thus activating the fan. Whenthe XLS Control Relay is de-energized, the fan isturned OFF.

Resetting the XLS system will revert the XLS ControlRelay to its supervisory state.

Typical Relay Output Connections To The HVACEquipment

Note: In Figures 10-13 (pages 12-15), XLS ControlRelay refers to the relay outputs that are in relaybases and in HTRI-R modules.

Figure 10:The fan controller should have overload protection andvarious sensors to detect any electrical and mechani-cal failures that would prevent the fan from activatingin the event troubles are detected. During normaloperation, the fan is in the OFF state (the assumedinitial condition) and the relay is in the de-energizedstate.

13

control of the fan from the HVAC Controller andremains energized until panel reset. (This is requiredto prevent the HVAC Controller from regainingcontrol of the fan during a smoke control strategy.)XLS Control Relay #1 will have control of the fan.

Resetting the XLS system will revert XLS ControlRelays #1 and #2 to their supervisory state.

OVERLOADPROTECTION

MOTORDISCONNECT

MOTORCONTROLLER

COIL

VARIOUS SENSORSAND OVERLOAD

PROTECTIONCIRCUITS

THIS CIRCUITRY CANDISABLE THE FAN IF

A FAULT IS DETECTED

HVACCONTROLLER

MOTOR

FAN

TRANSFORMERCIRCUIT



XLSControlRelay

#1

XLSControlRelay

#2

NC

NC

COM

COM

FUSE

LOCAL HANDS OFFAUTO SWITCH

ON

OFF

AUTONO

NO

CIRCUITPROTECTION

(POWER)

L1

L2

L3

Figure 11Typical Relay Output Connection To HVAC Equipment


Figure 11:The operation shown in Figure 11 is similar to theone illustrated in Figure 10. During normal buildingoperation, fan control is connected to the HVACController, which activates the fan according to theneeds of the system. The HVAC Controller is con-nected to XLS Control Relay #2.

When a smoke control strategy is initiated, XLSControl Relay #2 energizes to disconnect automatic

14



LOCAL POWERWITH

OVERLOADPROTECTION

ELECTRO-PNEUMATICVALVES FOR

SMOKE CONTROL

CONTROLTO OPEN

CONTROLTO CLOSE

DAMPER

NC

COM

NO

COIL

COIL

Figure 12Typical Damper Connection To The XLS Control Relay


Figure 12:This diagram shows a typical damper connection tothe XLS Control Relay. The damper has electro-pneumatic valves for both the open and closedpositions. During normal building operation, the localpower for the damper is connected to the control toCLOSE the damper (its assumed initial state).

During smoke control strategy, the XLS Control Relayhas control of the damper, transferring the power tothe electro-pneumatic valves that control the state ofthe damper.

Resetting the XLS system will revert the XLS ControlRelay to its supervisory state.

15

to the HVAC controller. This allows the HVAC control-ler to control the damper.

During smoke control strategy, XLS Control Relay #2must energize and remained energized until panelreset to prevent the HVAC from regaining control ofthe damper. XLS Control Relay #1 will have control ofthe damper.

Resetting the XLS system will revert XLS ControlRelays #1 and #2 to their supervisory state.



LOCAL POWERWITH

OVERLOADPROTECTION

ELECTRO PNEUMATICVALVES FOR

SMOKE CONTROL

CONTROLTO OPEN

CONTROLTO CLOSE

DAMPER

XLSControlRelay

#1

XLSControlRelay

#2

NC

NC

COM

NO

COM

NO

COIL

COIL

HVACCONTROLLER HVAC CONTROLLER SHOULD

HAVE THE CAPABILITY TODISABLE THESE LINES.XLS CONTROL RELAYS CANALSO BE USED TO DISCONNECTTHESE WIRES.


Figure 13Typical Damper Connection Controlled By An HVAC System

Figure 13:This diagram shows a typical damper connection thatis controlled by an HVAC system during normalbuilding operation. This configuration requires 2 XLScontrol relays: one to control the damper duringoverride and one to disconnect power to the HVACcontroller, thus disabling the HAVC from controllingthe damper during a smoke control strategy. TheHVAC controller should have the capability to disablethe lines that are directly connected to dampercontrol.

During normal building operation, local power for thedamper along with the damper control are connected

16

Override Control Relay Sample Program

The program that demonstrates control of theoverride relay when the XLS Smoke Control systemis configured as a non-dedicated system is shownbelow.

ANYANY SMOKE CONTROL STRATEGY

ANY ALARM FLAG

XLS SMOKE CONTROL RELAY #2

When an alarm or smoke control strategy is detectedor initiated by the system, the ANY function willactivate the override control relay (XLS Control Relay#2 in Figures 11 and 13) to transfer control of theHVAC equipment to the FSCS panel while the smokecontrol strategy is being initiated.

Once initiated, this program will not relinquishcontrol to the HVAC controller until the smoke controlsystem is reset.

EQUIPMENT REQUIREMENTSEQUIPMENT REQUIREMENTSEQUIPMENT REQUIREMENTSEQUIPMENT REQUIREMENTSEQUIPMENT REQUIREMENTS

The XLS can be configured for smoke control byusing the SIM-16 and OCM-16. When using thisconfiguration, a third party annunciator must be usedto display the status of the smoke control equip-ment, such as fans and dampers. This third partyannunciator must also comply with the requirementsfor UUKL. This configuration requires the followingequipment:

• Any XLS enclosure• PMI• Alarm initiating devices• HTRI-D / HTRI-S (used as an end process sensor)• PSC-12 / PSX-12 (power supply)• SIM-16, OCM-16• HTRI-R• Relay bases (for fan and damper control) DB-HR

Standard, AD-HR Duct• FSCS panel manufactured by Kirkland or Space

Age Technologies• CC-5 / CC-2• DLC• DAC• NIC-C• 24 VDC, 15 AH Battery (minimum)

When using this configuration, NFPA 92A andUniform Building Code recommend the annunciatordisplay color-coding shown in Table 3. Consult yourlocal AHJ for the required display color codes.

3ELBATGNIDOCROLOCYALPSIDROTAICNUNNADEDNEMMOCER

tnempiuqE etatSroloCyalpsiD

edoCAPFN

CBU/A29

rehtodnasnaFtnempiuqe

lamroN neerG A29APFN

dnasrepmaDtnempiuqerehto

nepO neerG A29APFN

dnasrepmaDtnempiuqerehto

desolC wolleY A29APFN

dnarepmad,naFtnempiuqerehto

lamroN wolleY CBU


/nOnepO

neerG CBU


/ffOdesolC

deR CBU

srepmaddnasnaF tluaF egnarO/rebmA CBU/A29APFN

17

PMI

DAC

DLC

NIC-C

(H-net)

PSC-12

BATTERY

HTRI-R

RELAY BASEINITIATING DEV ICES

HTRI-D

END PROCESS SENSORS

PMI

SIM-16

Fire Alarm Control Panel

OCM-16

Fire Fighter’s Smoke Control Station

CONTROL

SW ITCHES

INDICATING

LEDs

In closed conduit within

twenty feet and in the

same room of Fire Alarm

Control Panel

CC-5/CC-2

Other Voice

Modules

VOICE

SSSSSYYYYYSSSSSTEM BLOCK DIATEM BLOCK DIATEM BLOCK DIATEM BLOCK DIATEM BLOCK DIAGRGRGRGRGRAMSAMSAMSAMSAMS

Figures 14 and 15 are system block diagrams showing how the Firefighter’s Smoke Control Station (FSCS)panel interfaces with the XLS Voice and XLS Fire Control Systems.

PMI

DLC

PSC-12

BATTERY

HTRI-R

RELAY BASEINITIATING DEV ICES

HTRI-D

END PROCESS SENSORS

PMI

SIM-16

Fire Alarm Control Panel

OCM-16

Fire Fighter’s Smoke Control Station

CONTROL

SW ITCHES

INDICATING

LEDs

In closed conduit within

twenty feet and in ther

same room of Fire Alarm

Control Panel

NIC-C

(H-net)/CAN

FIRE

CC-5/CC-2

Other Fire

Modules

Figure 15XLS Fire System

Figure 14XLS Voice System

The above diagrams show Smoke Control Systems using SIM-16, OCM-16 modules in closed conduit with theVoice or Fire Control panel configured in a Style 4 connection. This configuration requires an approved FSCSpanel (refer to page 20 for Approved FSCS Manufacturers).

18

Note: All alarmsare annunciatedby the panel.

Fire Alarm Device

Zone #1InitiatingDevices

Different zones canhave diffrent smoke

control strategies thatmust comply with

UUKL

Zone #1SmokeControlStrategy

Any otheralarm?

Any smokecontrol

strategy on?

Annunciate Zone 2 alarm onlywithout activation of Zone #2

Smoke Control strategy

End Process

End Process Annunciate specifictrouble condition

Expectedfeedback

input?

Timer expiresbefore input is

received?

Activate fan anddamper control

Start timer for endprocess verifiction

Turn on Zone #2 smokecontrol strategy

Manual Controlvia SIM-16

Time BasedFunction forweekly test

Annunciate specifictrouble condition

End ProcessClear Start timer

Start timer for endprocess verification

Time BasedFunction forweekly test

StairwellPressurization

ControlStrategy

For Dedicated

System Only

For Dedicated

System Only

Activate fan anddamper control

Timer expiresbefore input is

received?

Expectedfeedback

input?

Clear Start timer

YES

YES

YES YES

NO

YES YES

NO

NO

NO

NO

NO

Zone #2SmokeControlStrategy

Zone #NSmokeControlStrategy

Zone #2InitiatingDevices

Zone #NInitiatingDevices

Any Alarm Flag

Figure 16Typical Flow Chart For FSCS Programming

TTTTTYPICYPICYPICYPICYPICAL AL AL AL AL APPLICAPPLICAPPLICAPPLICAPPLICAAAAATION PRTION PRTION PRTION PRTION PROGROGROGROGROGRAMMING FLOAMMING FLOAMMING FLOAMMING FLOAMMING FLOW CHARW CHARW CHARW CHARW CHART (FigurT (FigurT (FigurT (FigurT (Figure 1e 1e 1e 1e 16)6)6)6)6)

19

XLXLXLXLXLS SMOKE CONTRS SMOKE CONTRS SMOKE CONTRS SMOKE CONTRS SMOKE CONTROLOLOLOLOL SSSSSYYYYYSSSSSTEMTEMTEMTEMTEM LIMITLIMITLIMITLIMITLIMITAAAAATIONSTIONSTIONSTIONSTIONS

XLS Systems designed to provide Smoke Control inaccordance with UUKL, UBC, and/or as a FireFighter’s Smoke Control Station (FSCS) must beused expressly for that purpose. Burdening thesystem with voice evacuation functions can delaythe operation of fans and damper controls, thuscompromising the primary function of the system.

In such cases, the Smoke Control system must beconfigured as an independent system where thesole purpose is dedicated to smoke control. Thisindependent system can then be networked into thelife safety system of the facility.

REFERENCE LISREFERENCE LISREFERENCE LISREFERENCE LISREFERENCE LIST OF MANUT OF MANUT OF MANUT OF MANUT OF MANUALALALALALS/INSS/INSS/INSS/INSS/INSTRTRTRTRTRUCTIONSUCTIONSUCTIONSUCTIONSUCTIONS

Refer to the following manuals and/or installationinstructions as needed:

snoitcurtsnInoitallatsnI/slaunaM rebmuNtraP

lenaPlortnoCSLX-redniFeriF 447330-513

snoitcurtsnIgnitarepOSLX-redniFeriF 547330-513

sueZroflaunaMtratSkciuQ 578330-513

snoitcurtsnInoitallatsnIIMP 070330-513

launaMnoitarepOIMP 478330-513

snoitcurtsnInoitallatsnICLD 090330-513

snoitcurtsnInoitallatsnI61-MCO 051330-513

snoitcurtsnInoitallatsnI61-MIS 060430-513

snoitcurtsnInoitallatsnI21-CSP 060330-513

snoitcurtsnInoitallatsnI21-XSP 491390-513

snoitcurtsnInoitallatsnIS-/R-/D-IRTH 003330-513

RH-BDsesaByaleR 022330-513

RH-DAsesaByaleR 082330-513

C-CIN 042330-513

TEN-CAD 001530-513

2-CC/5-CC 530330-513

REQUIREMENTS FOR REQUIREMENTS FOR REQUIREMENTS FOR REQUIREMENTS FOR REQUIREMENTS FOR THE FSCSTHE FSCSTHE FSCSTHE FSCSTHE FSCSConnection to the Remote AnnunciatorThe following modules can be connected to a remoteFSCS. Therefore, the remote FSCS must meet allelectrical requirements of these modules:

• SIM-16• OCM-16

The FSCS must have a LAMP TEST switch and anENABLE key switch that prevents unauthorizedusers from changing the state of the fans or dampers.

20

Power Consumption

Power Input Voltage:24 VDC (regulated, typical)

Power Input Current:Dependent on usage (see below)

SIM-16 inputs:Switch input voltage range: 18 - 24VDCSwitch input current: 1.2mA max/input

supervised switchMust utilize a three position switch if used as

fan/damper control

OCM-16 outputs:Terminal voltage output: +24VMax Current: 15mA/output

200mA/module1 LED or pilot-type lamp/output

Wiring Specifications

The enclosure of the remote FSCS must comply withthe requirements of UL 864.

Mechanical Specifications

1. A ground strap that connects the panel door tochassis ground is required to improve the panel’sRF immunity.

2. The enclosure must also meet all specifiedrequirements of UL 864 and must be a Siemens’approved vendor for the remote FSCS.

Approved FSCS Manufacturers

KirklandWebsite: www.hrkirkland.com4935 Allison Street, #13Arvada, CO 80002Telephone: (303)-422-6670

(800)-247-2303Fax: (303)-420-1856

Space Age ElectronicsWebsite: www.1sae.com406 Lincoln StreetMarlborough, MA 01752-2195Telephone: (800)-486-1723

(508)-485-0966Fax: (508)-495-4740Email: [email protected]

SAMPLE SMOKE CONTROL SEQUENCESAMPLE SMOKE CONTROL SEQUENCESAMPLE SMOKE CONTROL SEQUENCESAMPLE SMOKE CONTROL SEQUENCESAMPLE SMOKE CONTROL SEQUENCE

IMPORTANT NOTE:These sample programs should be used as a ref-erence only. Smoke control systems should bedesigned to meet the needs of the individualbuilding and its occupants. The smoke controlsystem and its smoke control strategies shouldbe designed in accordance with the authorityhaving jurisdiction. Consult the authority hav-ing jurisdiction prior to installation.

A Smoke control system can consists of several fansand dampers depending on the type, shape and sizeof the area to be controlled.

The following example shows only two fans and twodampers but the same logic can be applied to nnumbers of fans or dampers.

There are three phases in any smoke control sequence:

1. Turn off the fans.

2. Set the dampers according to each specificstrategy or application.

3. Turn on the fans.

These three phases are illustrated in Figure 17.

The “D” Latch, Function 1, is triggered by the STARTSMOKE CONTROL SEQUENCE (See Figure 20SMOKE ZONE ENABLE LOGIC on building applica-tion sample), and its output goes TRUE. This is theflag that will turn off the fans. Once all fans are offand no troubles are detected, then all the inputs toFunction 2 will be TRUE, and its output will clock the“D” Latch Function 3 and clear the “D” Latch Function1. The output of Function 3 is the flag that will setthe dampers to the proper state. Once all thedampers are set to the proper state and no troublesare detected, then all the inputs to Function 4 will beTRUE, and its output will go TRUE. This will clockFunction 5, and clear Function 3. The output ofFunction 5 is the flag to turn on the fans. Once thecorresponding fans are on and no troubles aredetected, all inputs to Function 6 are TRUE. Also,Function 5 is cleared.

Details of an actual building and each individualphase will follow.

21

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22

BUILDING BUILDING BUILDING BUILDING BUILDING APPLICAPPLICAPPLICAPPLICAPPLICAAAAATION STION STION STION STION SAMPLEAMPLEAMPLEAMPLEAMPLE

This section illustrates an actual building applicationof the of the smoke control sequence using thesequence described previously and should only beused as a reference.

IMPORTANT NOTE:Precautions must be taken when designing ac-tual systems. Smoke control systems shouldactivate individual components in the sequencenecessary to prevent physical damage to fans,dampers, air ducts, and other equipment. Forexample: staggering fan activation to avoidpower surges, and verifying that dampers areopened before the fan activates to preventdamage to the air ducts. These programmingparameters will be monitored and controlledby another set of logic programs that are notdiscussed in this manual.

The sample building illustrated in Figure 18, will havethe following characteristics:

• Two stairtowers with barometric pressure relief• Five smoke zones• Large volume space (Lobby 01)

All zones and stairtowers have fire detection devicesand manual pull stations. Air intake and exhaust arefan controlled and can be located at any level of thebuilding (see the sections for Principles of SmokeControl and Smoke Control Systems).

These sample programs should be used as a refer-ence only and refined or improved to meet therequirements of the end-user. Figure 19 shows thethree phases of the smoke control sequence asdescribed previously but applied to the samplebuilding.

• In the first phase the Stairtower #1 fan,Stairtower #2 fan, Central system exhaust fanand Central system supply fan are shut off.

• Once all the fans have performed their requiredend state (shut off without trouble), all dampersare set to their final state according to the smokestrategy determined by the trigger alarm.

• After the dampers reach their final state withouttrouble, the fans are turned on and the sequenceis completed.

23

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25

Figure 20Smoke Zone Enable Logic

SMOKE DETECTOR 1

SMOKE DETECTOR N (LAST)

D

CLOCK OUT

CLEAR

D LATCHFunction 2

A

L

L

A

N

YSMOKE SEQUENCE ON

PANEL RESET

(Function output) PANEL RESET INHIBIT

See Fig. 21

START SMOKE SEQUENCE

Function 3Function 1

STSTSTSTSTARARARARARTING TING TING TING TING A SMOKE CONTRA SMOKE CONTRA SMOKE CONTRA SMOKE CONTRA SMOKE CONTROL SEQUENCEOL SEQUENCEOL SEQUENCEOL SEQUENCEOL SEQUENCE

WARNING:This is only a sample program and should beused as a reference only. It can be refined orimproved to meet the requirements of theend-user.

Logic To Start A Smoke Zone Sequence

Figure 20 describes the logic that enables a singlesmoke zone. Input devices consist of fire and smokedetectors and must not include manual pull stations.

If any fire/smoke detector in the smoke zone goesinto alarm, the output of Function 1 (OR gate) goesTRUE. If no other smoke zones are enabled and the“PANEL RESET INHIBIT” is TRUE (See Figure 21 fordetails), Function 2 (AND gate) will clock Function 3(“D” Latch). At this point START SMOKE SEQUENCEis FALSE, therefore the output of Function 3 (“D”Latch) is TRUE and will remain TRUE until the panelreset clears it.

XIRTAMECNEUQESEKOMS

mralAsehctiwS

SREPMAD SNAF

)YLPPUS(EKATNI TSUAHXE EKATNI TSUAHXE

1ENOZ 2ENOZ 3ENOZ 4ENOZ 5ENOZ LARTNEC 1ENOZ 2ENOZ 3ENOZ 4ENOZ 5ENOZ LARTNEC NRUTERRIATS

1REWOTRIATS

2REWOTLARTNEC 1YBBOL LARTNEC

EKOMS1NOECNEUQES

DESOLC NEPO DESOLC DESOLC DESOLC NEPO NEPO DESOLC DESOLC DESOLC DESOLC NEPO DESOLC NO NO NO NO NO

EKOMS2NOECNEUQES

NEPO DESOLC NEPO DESOLC DESOLC NEPO DESOLC NEPO DESOLC DESOLC DESOLC NEPO DESOLC NO NO NO NO NO

EKOMS3NOECNEUQES

DESOLC NEPO DESOLC NEPO DESOLC NEPO DESOLC DESOLC NEPO DESOLC DESOLC NEPO DESOLC NO NO NO NO NO

EKOMS4NOECNEUQES

DESOLC DESOLC NEPO DESOLC NEPO NEPO DESOLC DESOLC DESOLC NEPO DESOLC NEPO DESOLC NO NO NO NO NO

EKOMS5NOECNEUQES

DESOLC DESOLC DESOLC NEPO DESOLC NEPO DESOLC DESOLC DESOLC DESOLC NEPO NEPO DESOLC NO NO NO NO NO

LLUPLAUNAMELDNAH

DESOLC DESOLC DESOLC DESOLC DESOLC DESOLC DESOLC DESOLC DESOLC DESOLC DESOLC DESOLC DESOLC NO NO FFO NO FFO

26

Smoke Enable Logic For The Five Zone SampleBuilding ApplicationFigure 21 shows the entire logic to enable a smokesequence. Once any smoke sequence is enabled itwill clock Function 88 (“D” Latch) through Function 87(OR gate) setting the signal “START SMOKE SE-QUENCE” and inverting the DATA to FALSE in all thezones’ “D” Latches. Therefore, after a smoke zonesequence is activated, no other sequence can starteven if an alarm is reported from subsequent smokezones.

The “PANEL RESET INHIBIT” goes TRUE severalseconds after panel reset goes FALSE. This enablesan alarm that may occur immediately after a resetand before the “PANEL RESET” flag goes FALSE.

Figure 21 also shows the logic that enables any ofthe five smoke zones. The only additional logic is thederivation of the “PANEL RESET ENABLE” signal.When the panel reset flag goes FALSE, the START

timer is triggered. If an alarm had come in at theexpiration of the timer while the panel reset flag wasTRUE, the AND gate would have been satisfiedwhich would clock the “D” Latch.

Logic Control For Each Fan/DamperFor a clearer understanding, the fan/damper logic willbe broken down into the following three sections:

• Input• Output• End process verification

Note that since the logic functions for turning on andoff a fan or a damper are identical, the XX part of thefunction number indicates which device is beingcontrolled. In the sample building, we will show onlythe functions for one zone. In an actual Zeus programthe first part of the function number can be used foreasy identification of each individual function, asindicated in the following table:

rewotriatS1#

rewotriatS2#

ybboL1#

enoZ1#

enoZ2#

enoZ3#

enoZ4#

enoZ5#

llAsenoZ

NAFekatnI 00 20 30 30 30 30 30

NAFtsuahxE 10 40 40 40 40 40

repmaDekatnI 50 60 70 80 90

repmaDtsuahxE 01 11 21 31 41

repmaDnruteR51

repmaDekatnIniaM61

repmaDtsuahxEniaM71

27

SMOKE DETECTOR 1


START SMOKE SEQUENCE

D

CLOCK OUT

CLEAR

‘D’ LATCH

Function 3

A

L

L

AN

Y

SMOKE DETECTOR 1


SMOKE SEQUENCE 2 ON

D

CLOCK OUT

CLEAR

‘D’ LATCH

Function 4

A

L

L

A

N

Y

SMOKE DETECTOR 1


D

CLOCK OUT

CLEAR

‘D’ LATCH

Function 5

A

L

L

A

N

Y

SMOKE DETECTOR 1


D

CLOCK OUT

CLEAR

‘D’ LATCH

Function 7

A

L

L

A

N

Y

SMOKE DETECTOR 1


D

CLOCK OUT

CLEAR

‘D’ LATCH

Function 6

A

L

L

AN

Y

TRUE

TRUE

PANEL RESET

FALSE

START TIMER

ENABLE

TRIGGER

ANY

CANCEL

OUTPANEL RESET INHIBIT

D

CLOCK OUT

CLEAR

‘D’ LATCH

A

N

Y

TRUE

SMOKE SEQUENCE 3 ON

SMOKE SEQUENCE 4 ON

SMOKE SEQUENCE 5 ON

SMOKE SEQUENCE 1 ON

Function 82

Function 88

D

CLOCK OUT

CLEAR

‘D’ LATCH Function 87Function 2

Function 1

Function 8

Function 9

Function 10

Function 11

Function 12

Function 86

Function 85

Function 84

Function 83

Figure 21Smoke Sequence Enable Logic

28

INPUT SECTION (Refer to Figure 22)

Automatic Activation Due To Alarm:

• Functions XX32, XX33, XX34, XX73, XX75 andXX94 control turning on the output, andFunctions XX42, XX43, XX36, XX74, XX76 andXX95 control turning off the output.

• The inputs to the “OR” gate Function XX32(AUTO “ON” SEQUENCES) and “OR” gateFunction XX42 (AUTO “OFF” SEQUENCES) arethe outputs of the SMOKE SEQUENCE ENABLELOGIC, which are shown in Figure 21.

• The smoke control strategy will determine whenthese outputs will be the inputs to FunctionXX32 or Function XX42.

• The output of Functions XX32 and XX42 go to“AND” gates, Functions XX94 and XX95respectively, to override the automatic control ofany fan or damper.

• The output of Functions XX94 and XX95 go to“AND” gates, Functions XX33 and XX43.

• The other input to Functions XX33 and XX43 isthe output of the “D” Latch, shown in Figure 17.

Automatic Activation Due To Initial Conditions:

• “OR” gate Functions XX34 and XX36 have inputsthat force the output to a state or provide initialconditions.

• The “initial conditions” signal is the flag from thepower up / reset logic.

• In some cases, a fan may turn on or off on anyalarm. The signal “force to on” or “force to off”can be used for these cases.

Manual Control:

• Manual ON and OFF control uses FunctionsXX35, XX37, XX38, XX39, XX40, XX41, XX44,XX59, XX60, XX90, XX91, XX92 and XX93 of thelogic diagram (refer to Figures 22 and 23).

• The design of the logic is as follows: ManualControl is achieved by making the FAN/DAMPERON or FAN/DAMPER OFF switch input true.When in supervisory mode, these switches arein False state. When the FAN/DAMPER is placedin the ON position (making the FAN/DAMPER ONTrue), Functions XX35, XX38 and XX40 becomeTrue. This makes Function XX58 False, thereforeturning off the AUTO LED output. The output willbe monitored by the timers to verify theintegrity of the system.

• “Panel Enable” is the key switch at the FSCS. Itmust be “TRUE” for any manual activation.

Automatic Activation Due To Time BasedFunction:

• The time based control signals, “TBC ON” (inputto Function XX59) and “TBC OFF”, (input toFunction XX60) are used for periodic testing in adedicated system. This satisfys the UUKLrequirement of a weekly self-test to verify thesystem integrity. They are enabled only whenthere is no alarm and if the fan or damper is inAUTO mode.

• The output of the time-based function is like thatof any other logic function (TRUE or FALSE), butits input must be a time-based event. The inputcan be set to start on a daily basis, a weeklybasis, or on a specific date. For the dedicatedsystem, the start date must be set to WEEKLY.A particular day and time must be entered in theSTART TIME input and in the END TIME input.The END TIME input must not be less than theSTART TIME input for this function to operateproperly.

• When START TIME becomes True, the output ofthe time-based function will be True and willremain True until the END TIME becomes True.When the START TIME is reached, the fan anddampers will activate and when the END TIME isreached, the fan and dampers will return to theirnormal state.

• Timer XX45 provides a short pulse that willtrigger the Timers XX46 and XX77.

• Timer XX46 verifies the activations of the fan ordamper by triggering the detection latches in theoutput section when timed out.

• The third timer, Function XX77, provides a shortpulse that will reset the “D” Latches XX67, XX68,XX69 and XX70 that trigger the START TIMERSXX45 and XX46.

This sample program, as illustrated in Figure 22 and23, shows how SIM-16 switches and OCM-16outputs connected to LEDs can be used for fan anddamper control with a smoke control system. TheSIM-16 switches and the OCM-16 outputs areconfigured as follows:

• Two SIM-16 switches are used as the fan ordamper controller.

• HTRI-R relay is used as the fan or damper controlrelay.

• Four OCM-16 outputs are used as statusdisplays to indicate if fan or damper is OFF, ON,in AUTO mode, or in TROUBLE.

29

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In this sample program, the following conditions areassumed:

• SIM-16 switches use a three-position switchwhere the center position has no connection.

• SIM-16 switches cannot be turned onsimultaneously.

• OCM-16 outputs represent fan ON, fan OFF, fanAUTO, and fan TROUBLE.

OUTPUT SECTION (Refer to Figure 23)

• “D” latches, Functions XX71 and XX72, and“AND” gates, Functions XX47 and XX48, providethe outputs for turning on and off the fan/damper. They are mutually exclusive. Thesefunctions receive their input from the output ofFunctions XX75 and XX76 respectively in theinput section (see Figure 21).

• “AND” gates, Functions XX49 and XX50, directthe output of the timer, Function XX45, in theinput section (see Figure 21), to the properlatches.

• The latches store the trouble or no trouble stateof the fan/damper. When the timer, FunctionXX45 (see Figure 21), times out, it will triggerone of the four latches.

• This part of the program determines if the fan ordampers activate or deactivate within theresponse time stipulated by NFPA 92A.

• If the output is being turned on, and thefeedback is expected to go high, Functions XX51and XX53 will be triggered. With the feedbackhigh, the output of XX53 will go high, resulting inthe signal ‘ON no trouble’ going high. If thefeedback does not go high, “D” Latch XX51 willgo high, resulting in a trouble condition. Whenthe fan or damper fails to respond within the

response time, a specific trouble condition willbe announced by the FSCS. The feedbackrepresents the HTRI-D switch in which the end-verification device (damper position sensor orvane switch) is connected to indicate the actualstate of the fan or damper.

• Logic for the OFF state is the same, except thestate of the feedback will be the opposite.

END VERIFICATION PROCESS (Refer to Figure 24)

• In this section, the end state of the damper/fanis verified.

• If the end verification came in properly, theoutput of Function XX78 goes TRUE.

• If there was a trouble in the verification process,the output does not go TRUE. The smokesequence will stop until the operator manuallyturns the fan/damper on or off. That is, put it intomanual control rather than AUTO control. Notethat if the operator should manually turn theoutput on or off, an automatic smoke sequencewill ignore the output. By not being in AUTOmode, the output of Function XX78 is TRUE.

IMPORTANT NOTE:These sample programs should be used as areference only. Smoke control systems shouldbe designed to meet the needs of the individualbuilding and its occupants. The smoke controlsystem and its smoke control strategies shouldbe designed in accordance with the authorityhaving jurisdiction. Consult the authority havingjurisdiction prior to installation.

A

L

L

A

N

Y

Manual ON

Manual OFF

”ON” No Trouble

”OFF” No Trouble

OUTPUT RESOLVED OK

AUTO LED ON (OCM-16)

Function XX58

Function XX78

Figure 24End Verification Process for Fan/Damper

Siemens Building Technologies, Inc. 8 Fernwood Road Florham Park, New Jersey 07932

Siemens Building Technologies Fire Safety

Siemens Building Technologies, Ltd. 2 Kenview Boulevard Brampton, Ontario L6T 5E4 CN

P/N 315-034853-0

Documents

FIREFINDER-XLS™ CONTROL PANEL · principles of pressurization and airflow. The basic concept of pressurization is to create air pressure differences between the smoke zone and its