Metasys® System Extended Architecture Smoke Control
System
Technical Bulletin
MS-NAE5510-0U
Code No. LIT-1201684
Release 1.2
Issued February 10, 2005
Document Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Related Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Smoke Control Design Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Smoke Control Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Agency Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Smoke Control System Wiring Requirements per UL 864 UUKL . . . . . . . . . . . . . . . . . . . . . 6
Component Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Smoke Control Network Automation Engine (NAE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Fire Fighters Smoke Control Station (FSCS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
FSCS Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Smoke Control Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Smoke Control System Restrictions per UL 864 UUKL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
DX-9100 Controller Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Design Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Smoke Movement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Smoke Control Strategies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Initiating Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Initiating Devices Used for Manual Initiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Initiating Devices Used for Automatic Initiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
End-to-End Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Response Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Building HVAC Systems Used in Smoke Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Central Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Dedicated Smoke Control Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Non-Dedicated Smoke Control Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Metasys® System Extended Architecture Smoke Control System Technical
Bulletin
1
Individual Floor Fan Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Fan Coil Units/Water Source Heat Pumps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Induction Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Variable Air Volume (VAV) Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Smoke Dampers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Applying the Metasys Network as a Smoke Control System . . . . . . . . . . . . . . . . . 15
Air Moving Equipment in a Smoke Control Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Inputs for Smoke Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Fire Fighter’s Smoke Control Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Intelligent Fire Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Output Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Audible and Visual Notification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
NAE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Network Integration Engine (NIE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
DX-9100 Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Application Specific Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Smoke Control Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Ethernet Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Network Control Module (NCM). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Media Converters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Repeater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Smoke Control Application Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
System Programming Guidelines for Smoke Control . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Smoke Control NAE Programming Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
NIE Programming Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
LCT Standard Applications Library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
UL Listed Devices for Smoke Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2
Metasys® System Extended Architecture Smoke Control System Technical Bulletin
Metasys® System Extended Architecture Smoke
Control System
Technical Bulletin
Document Introduction
This document provides sales representatives, project engineers, application
engineers, and system representatives with the information necessary to sell and
engineer a Metasys® system extended architecture smoke control system that
complies with the Metasys System Underwriters Laboratories, Inc.® (UL)
UL 864 (UUKL) Smoke Control Listing. To comply with the Listing, you must
follow the requirements and restrictions placed on the (used and assembled)
Metasys system components as detailed in this and other Metasys system
documentation applying to the UL 864 UUKL Listing.
Note: This document specifically addresses the Johnson Controls® Metasys
system extended architecture smoke control system. This document
provides information only on the Ethernet-based systems and
communication equipment necessary to create a Metasys system extended
architecture smoke control application.
Related Documentation
The Metasys System Extended Architecture smoke control technical bulletins and
application notes listed in Table 1 are currently available.
Table 1: Related Documentation
For Information On
Refer To
LIT No./Part No.
Wiring a Metasys System Smoke
Control System
Metasys System Extended Architecture
Smoke Control Wiring Technical Bulletin
LIT-1201753
Common Requirements to Configure a
Metasys System to Comply with
Underwriters Laboratories (UL), UL 864
UUKL Smoke Control Listing
Metasys System Extended Architecture
Smoke Control UL 864 (UUKL)
Compliance Checklist
LIT-1201754
Smoke Control Applications using the
Logic Connector Tool (LCT)
Weekly testing
Single-Story Enclosed Shopping Mall
Smoke Control with FSCS Override Metasys System Extended Architecture
Application Note
LIT-1201736
Multi-Story Building Smoke Control with
FSCS Override - Metasys System
Extended Architecture Application Note
LIT-1201737
Warehouse Smoke Control with FSCS
Override - Metasys System Extended
Architecture Application Note
LIT-1201738
Weekly Testing of Dedicated Smoke
Control Dampers - Metasys System
Extended Architecture Application Note
LIT-1201743
Weekly Testing of Dedicated Stairwell
Pressurization Fans - Metasys System
Extended Architecture Application Note
LIT-1201739
NAE55/NIE Installation Instructions
Part No. 24-10051-0
Installing an NAE
Metasys® System Extended Architecture Smoke Control System Technical Bulletin
3
References
When designing your smoke control system, you must read and become familiar
with the following documents, codes, and standards, as applicable:
•
National Fire Protection Association (NFPA) 92A Recommended Practice for
Smoke Control Systems
•
American Society of Heating, Refrigerating, and Air-Conditioning Engineers
(ASHRAE) publication entitled Design of Smoke Control Systems for
Buildings
•
NFPA 70 National Electrical Code
•
NFPA 72 National Fire Alarm Code
•
NFPA 101 Life Safety Code
•
NFPA 90A Standard for the Installation of Air-Conditioning and Ventilating
Systems
•
NFPA 92B Guide for Smoke Management Systems in Malls, Atria, and Large
Areas
•
International Code Council (ICC) which includes:
•
-
Building Officials and Code Administrators International (BOCA) model
code
-
International Conference of Building Officials (ICBO) model code
-
Southern Building Code Congress International (SBCCI) regulations
UL 864 Standard for Control Units and Accessories for Fire Alarm Systems
Smoke Control Design Objectives
The design objectives of a smoke control system are to:
4
•
maintain a safe and smoke free environment in emergency exit routes and areas
of refuge during the evacuation of a facility
•
contain the smoke within or remove the smoke from the fire area and minimize
its migration to other areas of the facility
•
provide for conditions outside the fire area that are conducive to the
performance of emergency operations such as evacuation, fire control, and
rescue
•
protect life and minimize property loss
Metasys® System Extended Architecture Smoke Control System Technical Bulletin
Smoke Control Requirements
This section contains the Metasys system extended architecture configuration
requirements for a UL 864 UUKL Listed Smoke Control system. You must follow
these requirements to comply with the UL Listing. Assume any reference to
UL Listing to mean UL 864 UUKL Listing, unless otherwise stated. See the UL
Listed Devices for Smoke Control section for the Listed components.
Johnson Controls Smoke Control Listing is valid only with Metasys system
extended architecture components UL Listed for smoke control.
Agency Requirements
The NFPA and UL have published documents, which include provisions for the
control of smoke. These documents are as follows:
•
NFPA 92A Recommended Practice for Smoke Control Systems
•
NFPA 90A Standard for the Installation of Air-Conditioning and Ventilating
Systems
•
UL 864 Standard for Control Units and Accessories for Fire Alarm Systems
•
UL 555S Standard Smoke Dampers
•
NFPA 72 National Fire Alarm Code
•
NFPA 70 National Electrical Code
•
NFPA 101 Life Safety Code
In Canada, refer to the following documents:
•
ULC/ORD-C539 Fire Alarm Devices, Single and Multiple Station,
Mechanically Operated
•
ULC/ORD-C2043 Fire Test for Smoke and Visible Heat Release for Discrete
Products and Their Accessories Installed in Air-Handling Spaces
You can purchase current versions of NFPA documents by calling the National
Fire Protection Association at 1-800-344-3555 and current versions of UL
documents by calling UL at 1-888-853-3503.
As with other types of systems designed and installed to protect life and property,
the responsibility for approving equipment, installations and procedures lies with
the local Authority Having Jurisdiction (AHJ). The phrase Authority Having
Jurisdiction refers to the agency or individual responsible for approving
equipment, an installation, or a procedure, and giving permission to occupy a
building.
In most municipalities, that responsibility lies with the fire chief, fire marshal,
electrical inspector, or others having statutory authority. Become familiar with the
building codes of your community as its requirements may differ from those of the
NFPA.
Metasys® System Extended Architecture Smoke Control System Technical Bulletin
5
Other entities, such as an insurance carrier or hospital accreditation organization
may have influence and/or right of approval of the smoke control system
configuration.
Smoke Control System Wiring Requirements per UL 864 UUKL
Complete all field wiring in compliance with this technical bulletin and the
Metasys System Extended Architecture Smoke Control Wiring Technical Bulletin
(LIT-1201753).
Component Requirements
You must have the following components to configure and assemble a Metasys
System Extended Architecture network to comply with UL 864 UUKL Smoke
Control Listing:
Smoke Control Network Automation Engine (NAE)
Use the Smoke Control NAE, MS-NAE5510-0U, to interface all input and output
smoke control points. The internal modem and LAN port are not available on the
smoke control NAE. Place the Smoke Control NAE in a locked enclosure.
Fire Fighters Smoke Control Station (FSCS)
Follow these guidelines:
6
•
Use a UL 864 UUKL Listed FSCS to provide manual control of smoke control
systems. You must use the UL Listed annunciator panel made by Automation
Displays, Inc. See the FSCS Requirements section for ADI contact
information.
•
Provide positive indication on the FSCS of the operation of all smoke control
equipment, for example, that the damper reaches its intended position.
•
Configure each Binary Output (BO) object used for pressurization and exhaust
control outputs with positive feedback, which monitors the associated
controlled equipment status. Typically, smoke control dampers provide a pair
of feedback binary inputs for the two damper end switches, full open and full
closed. For fans used for smoke control, provide positive indication of air flow
with either a flow switch or pressure differential sensor to determine the
intended operating status of the fan.
•
Display the status of all smoke control systems on the FSCS.
•
Indicate both visibly and audibly on the FSCS any trouble condition when any
smoke control equipment does not respond to automatic or manual commands.
The FSCS controls the Sonalert logic for all smoke control systems, no other
application is necessary.
Metasys® System Extended Architecture Smoke Control System Technical Bulletin
•
Prevent the smoke duct detectors from stopping the fan, once the smoke
control system has been activated, if the fan is used for smoke control, and the
smoke control strategy is such that the return duct will be configured to exhaust
the smoke from the building during the smoke control system operation. Duct
smoke detectors are often located in the return duct of a Heating, Ventilating,
and Air Conditioning (HVAC) fan and connected to stop the fan when smoke is
detected, which is in compliance with NFPA 90A.
•
Use the Automatic Weekly Testing of Dedicated Stairwell Pressurization Fans
application on all dedicated smoke control systems to verify proper operation.
Refer to the Weekly Testing of Dedicated Stairwell Pressurization Fans Metasys System Extended Architecture Application Note (LIT-1201739) for
more information.
•
Use the Automatic Weekly Testing of Dampers application on all dedicated
smoke control systems to verify proper operation. Refer to the Weekly Testing
of Dedicated Smoke Control Dampers - Metasys System Extended Architecture
Application Note (LIT-1201743).
•
Automatic activation of any smoke control sequence of operation must have
priority over any automatic environmental control strategy and over any
non-smoke control manual commands. When an automatic smoke control
sequence is initiated, the system design must bypass the following operational
overrides:
-
High and Low Temperature Protection Devices (specifically, A-11 and
A-25 series Temperature Protection Devices)
-
Return and Exhaust Air Duct Smoke Detectors
•
Make the indication of a trouble condition from any air duct smoke detector
available to FSCS operators so that they can make informed decisions
concerning their override actions if smoke is detected elsewhere, especially in
the supply air. This can be in the form of annunciation on the fire alarm system
control panel or a remote annunciator controlled by the fire alarm system.
•
Give the highest priority to the FSCS to manually activate or deactivate any
predefined smoke control strategy. Give automatic smoke control a higher
priority than any manual or automatic HVAC application.
•
After a smoke alarm is received and acted upon automatically by the smoke
control system, additional smoke alarms must not cause the smoke control
system to take automatic secondary actions. However, the system must execute
any manual commands from the FSCS.
•
Ensure that all communication links between buildings are fiber-optic cable or
copper cable buried in a conduit that is separate from power wiring.
Metasys® System Extended Architecture Smoke Control System Technical Bulletin
7
•
Ensure that response time for individual smoke control components to reach
their intended postion from the point of command does not exceed the
following time periods: 60 seconds for fan operation at the desired state plus
10 seconds to annunciate; 75 seconds for completion of damper travel plus
10 seconds to annunciate. In the case of fan start after damper close add these
times. If the damper must be closed before the fan starts, the total response
time could be up to 135 seconds for operation, 75 seconds for damper to close
plus 60 seconds for fan to start. Time to annunciate is added to this time.
(Control system response is the time from automatic detection of a smoke
condition to the issuing of the first smoke control command to the equipment.)
•
Automatic activation of any smoke control sequence of operation has priority
over any non-smoke control manual commands and any automatic
environmental control strategy, when an auto smoke control sequence is
initiated. High and low temperature protection devices and return and exhaust
air-duct smoke detectors are bypassed.
•
Use the UL Listed Smoke Control NAE to interface all input and output smoke
control points.
FSCS Requirements
Requirements of an FSCS include the following. The FSCS must have:
8
•
full monitoring and manual control capability over all smoke control systems
and equipment
•
the capability to override (partially or in full) any operation in progress,
including programmed actions, non-smoke control manual overrides, and
non-smoke control bypasses
•
the highest priority over all smoke control systems and equipment
•
a building diagram clearly indicating the type and location of all smoke control
equipment
•
indication of the actual status (not the command status) of systems and
equipment used for smoke control. This includes both the full open status and
the full closed status of each damper, the status of each fan used for smoke
control, and the air flow status of every fan.
•
the ability to activate an audible signal if the operation proof sensor (binary
feedback point) failed to provide positive feedback that its command was
executed within the allowed response time
•
hardware supervision alarms, such as binary feedback trouble on fans and
dampers, as well as the system trouble points, that will turn on the FSCS alarm
horn
Metasys® System Extended Architecture Smoke Control System Technical Bulletin
•
sole control (Use only one FSCS on a Metasys system extended architecure
network used for smoke control applications, unless multiple FSCSs are
approved by the AHJ.)
Note: User must use the approved UL Listed display panel as your FSCS. This
panel is available from:
Automation Displays, Inc. (ADI)
3533 N. White Avenue
Eau Claire, WI 54703
(715) 834-9595
The FSCS can be connected to any UL 864 UUKL Listed MS-NAE55-0U in the
network.
Smoke Control Restrictions
The following section describes smoke control restrictions.
Smoke Control System Restrictions per UL 864 UUKL
Smoke control system restrictions per UL 864 UUKL follow. Do not use:
•
any fire alarm system manual pull stations to initiate automatic smoke control
sequences. Only automatic alarm initiating devices such as smoke, heat, or
flame detectors should be used.
•
a duct-type smoke detector to initiate a smoke control strategy except as
detailed in the Smoke Control Strategies section of this document
•
the Web browser user interface to provide smoke control. The UL listing does
not include the Web browser user interface for smoke control and as an FSCS.
•
any Ethernet communication equipment that is not UL listed. All NAE
networks are Ethernet-based. Refer to the Metasys System Extended
Architecture Smoke Control System Technical Bulletin (LIT-1201684) for more
information.
DX-9100 Controller Applications
The following are smoke control system restrictions per UL 864 UUKL for the
DX-9100 controller applications.
•
Any DX-9100 controller used for smoke control must be locked in an
enclosure (for example, EN-EWC25-0 or FSCS enclosure) to prevent
unauthorized access.
•
Do not use the buttons on the face of the DX-9100 controller to override smoke
control points.
Metasys® System Extended Architecture Smoke Control System Technical Bulletin
9
Design Considerations
This section outlines the design criteria you should consider when implementing a
smoke control strategy.
Smoke Movement
In general, the movement of smoke will follow the same pattern as the overall air
movement within a building. The major influences causing smoke movement
include stack effect, air/smoke buoyancy, air/smoke expansion, wind, pressure,
and the operating HVAC system. In a fire situation, a combination of these
influences usually causes smoke movement.
An accepted way of containing smoke within a compartment or an area is to create
pressure differences across partitions that separate the affected area from the
surrounding areas. You can accomplish this by creating higher pressure in the
adjacent space than the pressure which is in the smoke zone. The pressure
differential should be sufficient to overcome the effects of wind pressure, the stack
effect, the buoyancy of hot gases, and other influences as previously described, yet
permit doors leading to emergency exit routes to be opened.
In addition, air flow can minimize the movement of smoke through openings such
as doors. For example, you can pressurize a stairwell, thereby minimizing the
migration of smoke into it. Should one of the stairwell doors open, the flow of
fresh air from the stairwell will reduce the movement of smoke into the affected
area.
Note: Treat elevator shafts like stairwells and positively pressurize them to
prevent vertical migration of smoke through the building. You may close
inter-floor and inter-area duct work not being used for active smoke control
at the appropriate locations, as detailed See Table 1 in the Related
Documentation section of this document.
Smoke Control Strategies
The smoke alarm initiation of an automatic smoke detection device, such as an
area-type smoke detector located in one of the facility’s smoke zones, generally
activates the smoke control system. This activation may initiate a control strategy
for the air moving equipment to create higher pressures in the areas surrounding
the smoke zone than are present in the smoke zone. This may include positively
pressurizing areas adjacent to the smoke zone and/or negatively pressurizing the
smoke zone and exhausting air from the smoke zone. Subsequent smoke alarm
conditions in other zones must be prevented from automatically changing the
initial smoke control sequence. Keep in mind the guidelines provided in this
section when planning your smoke control strategy.
Note: Do not use duct type smoke detectors exclusively to activate smoke
control. This is for the following reasons:
10
Metasys® System Extended Architecture Smoke Control System Technical Bulletin
•
The dilution of air in the duct system will likely result in a slow response
time.
•
The supply air duct detector, when exposed to outdoor air in the HVAC
supply air duct, may report a false alarm condition.
•
The duct system may move smoke from the smoke zone, and this will
cause the duct detector in the return/exhaust duct of the non-dedicated fan
system to register an alarm condition.
Note: It may be acceptable to use a duct smoke detector if it is not exposed to
outdoor air, the duct detector’s coverage area is equal to the area covered
by a spot type area smoke detector (typically 900 square feet or less),
and/or the AHJ has approved the application.
Initiating Devices
The following section describes initiating devices for manual and automatic
initiation.
Initiating Devices Used for Manual Initiation
Do not use manual pull stations to initiate a smoke control sequence, since there is
no certainty that manual devices will be activated in the area of involvement.
However, you can use manual pull stations to initiate global operations, such as
energizing stairwell and elevator shaft pressurization fans.
Manual implementation of the smoke control strategy takes place at the FSCS. The
FSCS must be capable of overriding, either partially or in full, any automatic
activation that may be in progress. It must also be capable of manually controlling
each control point (damper, HVAC fan, and so forth) that is used for smoke control
in the facility. Refer to the application notes listed in Table 1 for details on how to
interface an FSCS to a Metasys system.
Interface devices (those that interface field points to the controller) have the
following restrictions. They must:
•
be listed for use in the Johnson Controls Smoke Control Listing
•
be used and installed according to Johnson Controls literature
•
result in fan operation at the desired state within 60 seconds (plus 10 seconds
to annunciate) when commanded
•
result in completion of damper travel within 75 seconds (plus 10 seconds to
annunciate) when commanded
For more information, see the LCT Standard Applications Library section of this
document.
Metasys® System Extended Architecture Smoke Control System Technical Bulletin
11
Initiating Devices Used for Automatic Initiation
You can initiate an automatic operation of a smoke control sequence using a
BACnet connected Intelligent Fire Controller (IFC)-640, IFC-1010, IFC-2020 or
IFC-3030 panel.
End-to-End Verification
End-to-end verification is required to ensure that the smoke control sequence of
operation has been implemented. Verification must be accomplished by using
damper position indicators and air flow switches or differential pressure sensors.
Any failure that results in equipment failing to respond (or responding
inappropriately) to commands from the Metasys smoke control system must
generate an audible and visual trouble signal at the FSCS. For HVAC dampers,
used in smoke control sequences, the FSCS must display a positive indication of
the damper’s fully opened position and its fully closed position and must report a
trouble condition if the damper position does not agree with the commanded
position. For a permanent record of trouble conditions, including situations where
the commanded smoke control sequence does not equal condition, use the audit
trail function to record the last commands and events during a Smoke Control
Sequence. For additional long term storage of historical data, you must install an
Application and Extended Data Server (ADX) outside of the smoke control
network.
Response Time
Response time for individual components to achieve their intended state from the
point of command should not exceed the following time periods: 60 seconds for
fan operation at the intended state plus 10 seconds to annunciate; 75 seconds for
completion of damper travel plus 10 seconds to annunciate.
Building HVAC Systems Used in Smoke Control
Central Systems
Central HVAC systems are frequently employed in smoke control designs. The
designer should ensure that the system’s capacity is sufficient to supply the
quantity of outdoor air necessary to pressurize the areas adjacent to any fire area.
The designer should also make sure that the fan systems can handle situations
where a fire may expand to other areas, requiring more areas to be positively
pressurized. In addition, the installer must install smoke dampers at the duct risers
of each floor’s supply and return takeoffs as required by NFPA 92A. Pressure
controls should also be employed in order to avoid rupturing or collapsing the
ductwork.
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Metasys® System Extended Architecture Smoke Control System Technical Bulletin
Dedicated Smoke Control Systems
Dedicated smoke control systems are fan, damper, and duct systems designed for
the sole purpose of controlling smoke within a building. An example of a
dedicated system is a stairwell or elevator shaft pressurization system that is
operational only during a smoke control event. The dedicated smoke control
systems form a system of air movement that is separate and distinct from the
building’s HVAC system, and they only operate to control the flow of smoke. With
their function being dedicated to the performance of smoke control, dedicated
smoke control systems are more immune to faults in the building’s HVAC system.
They are, however, more costly than non-dedicated systems, and because they are
not in continuous use, faults may go undetected.
Note: To assure full performance and maintain UL compliance, apply automatic
weekly testing to all dedicated systems, including dedicated elevator shaft
fans, dampers used exclusively for smoke control, and the like. Refer to the
Weekly Testing of Dedicated Stairwell Pressurization Fans - Metasys
System Extended Architecture Application Note (LIT-1201739) for details
on how to perform the necessary tests. Any failure to properly respond in
the alloted time must send a trouble signal to the FSCS.
Non-Dedicated Smoke Control Systems
Non-dedicated smoke control systems share components with other air moving
equipment normally used for building environmental control. When the smoke
control mode is activated, the operating mode of the building’s HVAC equipment
changes in order to accomplish the objectives of the smoke control design.
Non-dedicated systems tend to be less costly and occupy less of the building’s
space. However, from an operational standpoint, the control strategy may become
elaborate. This may expand the number of control and monitoring points
connected to a Building Automation System (BAS) and increases the complexity
of the sequence of operation of the air moving equipment.
Individual Floor Fan Units
If sufficient outdoor air is available and the system has the capability to exhaust an
area, individual or floor-by-floor fan units can be used in smoke control
applications.
Metasys® System Extended Architecture Smoke Control System Technical Bulletin
13
Fan Coil Units/Water Source Heat Pumps
These types of units are generally located on the perimeters of buildings and only
draw only enough outdoor air to fulfill the fresh air requirements of the spaces they
serve. They are often used in conjunction with central systems, which deliver fresh
air and exhaust recirculated air in larger quantities. When the fan coil unit is not
located in the smoke zone, it is acceptable to exclude it from the smoke control
sequence. When the unit serves the smoke zone in a design that calls for the area to
be negatively pressurized, its outdoor air damper should be closed, and the unit
should be de-energized.
Induction Units
During a smoke control mode, induction units that serve the smoke zone should be
shut down, or their primary air source should be closed off.
Variable Air Volume (VAV) Systems
The Variable Air Volume (VAV) system, when employed as part of a smoke
control strategy, is a subset of the general central system category described above.
Employ control strategies that ensure adequate quantities of air pass through the
terminal units to permit floor pressurization in the areas adjacent to the smoke
zone. This may include overriding the air volume control to provide maximum
deliverable air to the areas adjacent to the fire area. If fan-powered terminal units
are used and installed in the smoke zone, shut off their fans. If bypass dampers
fulfill the volume control, close the damper during smoke control mode.
Smoke Dampers
All dampers used as barriers in smoke partitions or as safety dampers in a smoke
control system should be UL Listed and Classified for use in that application.
(Refer to UL 555S Standard for Leakage Rated Dampers for Use in Smoke Control
Systems.)
Applying the Metasys Network as a Smoke Control
System
Air Moving Equipment in a Smoke Control Sequence
In general, the equipment you use in an engineered smoke control application is
the same as that used in environmental control applications. However, there are
some unique components, such as the switch (NU-FIBSW1-0, NU-FIBSW2-0 or
NU-RJ45SW1-0), and the FSCS, that must be used to comply with the component
performance requirements of the UL 864 UUKL Listing. Also, there may be
significant differences in the way the equipment is installed and the quantity and
type of control and monitoring points that are connected.
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Metasys® System Extended Architecture Smoke Control System Technical Bulletin
Inputs for Smoke Control
Figure 1 and Figure 2 detail the various input configurations that are UL Listed for
smoke control. This figure shows how an FSCS is connected into a
Metasys system using a Smoke Control NAE directly via the N2 Bus.
Fire Fighter’s Smoke Control Station
The FSCS must have full monitoring and manual control capability over all smoke
control systems and equipment. It must have the capability to override (partially or
in full) any operation in progress, including programmed actions, non-smoke
control manual overrides, and non-smoke control bypasses.
You may have only one FSCS on a Metasys Network used for smoke control
applications unless multiple FSCSs are approved by the AHJ. For more details, see
the Smoke Control Requirements section in this document.
Intelligent Fire Controllers
The IFC-640, IFC-1010, IFC-2020, and IFC-3030 fire alarm control units can be
interfaced to the Metasys extended architecture system to initiate smoke control
actions by using the BACnet gateway as shown in Figure 1.
Output Devices
Audible and Visual Notification
You must provide visual and audible indication to alert an operator in the event that
a programmed smoke control sequence did not occur. This indication must occur at
the FSCS.
NAE
The NAE can be an output device with N2 controllers.
Network Integration Engine (NIE)
The NIE can be used as an output device by integrating an NCM with
N2 controllers.
DX-9100 Controllers
In more sophisticated control scenarios, use the DX-9100 controller with an
XT/XP Input/Output (I/O) Module. The quantity of input and output points
required at the DX-9100 controller is generally large. Input wiring connected to
these controllers’ I/O points needs to be shielded or installed in metallic raceway
as protection against transients. Refer to the Metasys System Extended Architecture
Smoke Control Wiring Technical Bulletin (LIT-1201753) for restrictions on field
wiring. All electrical installations must meet the requirements of NFPA 70
National Electrical Code. Refer to the controller’s technical bulletin for more
information.
Metasys® System Extended Architecture Smoke Control System Technical Bulletin
15
Application Specific Controllers
As with other Facility Management scenarios, use UL 864 UUKL Listed
Application Specific Controllers (ASCs) as required to meet the needed sequence
of operation.
Use UL 864 UUKL Listed AHUs, VAVs, VMAs, and Unitary (UNT) controllers in
the HVAC scenarios for which they were designed.
Your controller selection should account for the fact that operational overrides and
safeties are sometimes bypassed and more control outputs may be required.
Since positive indication of control action via flow switches and damper end
switches (proof sensors) is required, the quantity of input points will generally
increase as well.
Refer to the Metasys System Extended Architecture Smoke Control Wiring
Technical Bulletin (LIT-1201753) for restrictions on field wiring.
All electrical installations should meet the requirements of NFPA 70 National
Electric Code.
Refer to the controller’s technical bulletin for more information:
•
Air Handling Unit (AHU) Controller Technical Bulletin (LIT-6363010)
•
Unitary Controller (UNT) Technical Bulletin (LIT-6363081)
•
Variable Air Volume (VAV) Controller Technical Bulletin (LIT-6363040)
•
Variable Air Voulume Modular (VMA) 1200 Series Overview and Engineering
Guidelines Technical Bulletin (LIT-1162350).
Smoke Control Devices
All devices used for smoke control applications must communicate with the
UL 864 UUKL Listed NAE (MS-NAE5510-0U). Refer to the NAE55/NIE
Installation Instructions (Part No. 24-10051-0) for information on installing the
NAE.
Note: All NAE devices (MS-NAE5510-0U) and the network that connects them
must be physically isolated from other non-smoke control NCM, NIE,
NAE systems, Web browsers, and all non-listed ethernet network devices,
such as hubs, routers, and repeaters, by a switch (NU-FIBSW1-0, NUFIBSW2-0 or NU-RJ45SW1-0), as detailed in the Smoke Control System
Restrictions per UL 864 UUKL section of this document and as shown in
Figure 1.
Ethernet Switches
The switch is the core of a network or cabling system. Ethernet switches for
fiber-optic cables (NU-FIBSW1-0 or NU-FIBSW2-0) or copper cables with RJ45
connectors (NU-RJ45SW1-0) have multiple ports to connect multiple cable
segments together in a star, bus, or combination of star and bus topology.
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Metasys® System Extended Architecture Smoke Control System Technical Bulletin
Network Control Module (NCM)
In an NAE-based system, configure the NCM350s only for triggered outputs using
integration through an NIE. For systems that have NCM350s as output devices, the
UL UUKL Listing requires the Network Interface Card (NIC) (NU-ETH101-0) to
be installed in the Metasys system nodes (NU-NCM350-8) to communicate over
the N1 LAN/Ethernet network. The NIC installs into the ISA card slot on the
NCM350 (NU-NCM350-8).
NICs use RJ45 (unshielded twisted pair, copper wire, 8-pin phone jack) ports to
connect to a media converter. Only the RJ45 port on the NIC is approved for
UL864 (UUKL) smoke control applications. Do not use the Attachment User
Interface (AUI) port or coaxial cable port. These ports are not UL UUKL Listed.
Media Converters
Media converters change signal formats between fiber-optic and NIC (copper
cable) output. Media converters require an external 120 VAC power supply.
The NU-MC101-0 media converter operates at a 10 Mbps communication speed.
See documentation packaged with the media converter (NU-MC101-0) for power
requirements.
The NU-MC102-0 media converter operates at a 100 Mbps communication speed.
See documentation packaged with the media converter (NU-MC102-0 and
NU-CH101-0) for power requirements.
Repeater
The N2 Bus repeater (NU-RPT101-0) isolates the N2 Bus signal. It also
regenerates incoming signals, so you can extend transmission distances while
maintaining signal quality. In addition to collision detection, the repeater reshapes,
re-times, and re-transmits signals to both Ethernet segments. If using an N2 Bus
Repeater to isolate the smoke control system, you must place the reapeater inside
the smoke control system. Any non-listed devices must be placed outside the
smoke control system.
Smoke Control Application Examples
To help design a smoke control system, Figure 1 shows an example that complies
with UL Listings, incorporating smoke control and non-smoke control systems.
This is only an example - the number and arrangement of components in your
system may differ. Ensure that your system complies with all device and
communication requirements and restrictions..
Metasys® System Extended Architecture Smoke Control System Technical Bulletin
17
Existing Building Network (Ethernet)
100 Mbps
100 Mbps
PC with browser
(user interface)
PC
PC with browser
(user interface)
PC
)
BACnet
Gateway
Smoke Control
Asante Switch 1
IFC-3030
)
Ethernet
Crossover
Cable
IFC-2020
)
Smoke Control Fiber-Optic Switch
1
13
Smoke Control
Asante Switch 2
Fiber
12
24
IFC-1010
)
Fiber
IFC-640
Fiber
NAE
Smoke Control
Asante Switch x
10/100 Mbps
NIE
NCM
350
Smoke
Control
NAE
Smoke
Control
NAE
Smoke
Control
NAE
VAV
N2
10 Mbps
Ethernet
to Field
N2
Smoke
Control
NAE
N2
Media
Converter
Fiber to
10 Mbps
Smoke
Control
NAE
VAV
10 Mbps
Ethernet
to Field
Smoke
Control
NAE
VAV
NCM 350
Media
Converter
Fiber to
100 Mbps
100 Mbps
Ethernet
to Field
Smoke
Control
NAE
N2
N2
NCM
350
VAV
10 Mbps
Media
Converter
Fiber to
10 Mbps
VAV
DX9100
DX9100
VAV
DX9100
Third party
dry contact
input
UNT
VAV
DX9100
UNT
DX9100
AHU
AHU
UNT
FSCS Panel
UNT
UNT
N2 Repeater
in UL Listed
Enclosure
UNT
AHU
AHU
AHU
smoke control
N2 Repeater
in UL Listed
Enclosure
UL Listed
N2 Device
Non UL Listed
N2 Device
Non UL Listed
N2 Device
Non UL Listed
N2 Device
Figure 1: Metasys System Extended Architecture Smoke Control System
18
Metasys® System Extended Architecture Smoke Control System Technical Bulletin
Figure 2 shows a third-party Fire Alarm Control Panel used in a smoke control
system. You can use any UL 864 UOJZ Listed FACP manufactured by a third
party.
N1 LAN
NAE
MS-NAE5510-0U
N2
DX-9100
Fire Alarm
Control Panel
(Third-Party)
FACP
Dry Contacts
Maximum
20 Foot Length
Figure 2: Fire Alarm Control Panel Inputs
Figure 3 shows a application using fiber-optic cable and media converters. The
following guidelines apply in this system:
•
Install all N1 fiber-optic lines and copper cables in conduit.
•
Verify that all N1 Bus fiber-optic lines with ST connectors have a maximum
length of 2000 meters (6560 feet).
•
Verify that connections between a media converter and an NCM350 have a
maximum lenght of 6 meters (20 feet) and that all cables are in the same room
as the media converters.
•
Verify that all N1 Bus copper cables with RJ45 connectors are Category 5
twisted pair.
Metasys® System Extended Architecture Smoke Control System Technical Bulletin
19
Port 15
R eset
R x Tx
Port 1
R x Tx
R x Tx
Port 2
Port 3
R x Tx
Port 4
R x Tx
Port 5
R x Tx
R x Tx
R x Tx
R x Tx
R x Tx
R x Tx
R x Tx
Port 6
Port 7
Port 8
Port 9
Port 10
Por t 11
Port 12
Port 16
P S1
PS 2
Port 13
Port 14
Wire
Fib er
Lin k Test
TX
10 Ba se- F
RX
10 Ba se- T
REC
REC
PWR
LNK
NML
LNK
MDI
MDI -X
NU-MC101-0
Fiber
Fib er
Lin k Test
TX
RX
10 Ba se- F
10 Ba se- T
REC
REC
PWR
LNK
NML
LNK
MDI
MDI -X
NU-MC101-0
Wire
Smoke Control NAE
Figure 3: Metasys System Extended Architecture with Fiber-Optic Switch
System Programming Guidelines for Smoke Control
When programming the system for smoke control applications, the system must
conform to the guidelines outlined below.
Follow these guidelines when defining systems and objects:
•
Name all systems used for smoke control in a manner that makes identification
obvious. For example, the air handling unit serving the west wing on the third
floor might be called AHU3_W and the stairwell pressurization system might
be called STR_PRES.
•
Name all objects within a system used for smoke control in a manner that
makes identification obvious. For example, the outdoor air damper might be
called "OSA_DMPR" and the mixed air damper might be called
"MXA_DMPR."
•
Use engineering units that are appropriate to easily determine the current status
of a device.
•
Use the 24-character expanded ID attribute in an object definition window to
provide information that is pertinent to an object’s type and location and is
easily understood in an emergency situation.
Smoke Control NAE Programming Guidelines
Create the Metasys system NAE/NIE databases using online system generation
and Auto-Discovery. Refer to the SCT Technical Bulletin (LIT-1201534) for more
information.
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Metasys® System Extended Architecture Smoke Control System Technical Bulletin
NIE Programming Guidelines
DDL is required only for smoke control NCMs integrated through the NIE as
output devices.
Note: Create the Metasys system database using online generation with Data
Definition Language (DDL) using an American Standard Code for
Information Interchange (ASCII) text editor. See the DDL Programmer’s
Manual for more information.
LCT Standard Applications Library
The LCT is a feature of the Metasys system software used to create a graphical
representation of the control logic within a system. Examples of automatic smoke
control sequences are available in the Standard Applications Library, Smoke
Control Applications. Use the smoke control applications as written or modify
them to meet your requirements.
Manual override operations take precedence over any automatic smoke control
sequence of operation.
To use the library, refer to the Standard Applications Library provided with the
Branch Purchase Package (BPP).
UL Listed Devices for Smoke Control
The following list indicates Johnson Controls equipment that has received the
UL Smoke Control Listing.
AP-VMA 1410,
EN-PLR Series
NU-CH101-0
AP-VMA 1420
EN-EWC Series
NU-RPT101-0
AS-AHU Series
IFC-640
NU-ETH101-0
AS-RLY Series
IFC-1010
NU-FIBSW1-0
AS-UNT Series
IFC-2020
NU-FIBSW1-1
AS-VAV Series
IFC-3030
NU-FIBSW-2-0
AS-XFR Series
MS-NAE5510-0U
NU-RJ45SW1-0
AS-AHU Series
MS-NIE5510-0U
NU-NCM350-8
BACNETGATEWAY
NU-MC101-0
XP9 Series
DX Series
NU-MC102-0
XPx Series
EN-EWC Series
NU-MC103-0
XTM Series
Controls Group
507 E. Michigan Street
Milwaukee, WI 53202
Metasys® is a registered trademark of Johnson Controls, Inc.
All other marks herein are the marks of their respective owners.
© 2005 Johnson Controls, Inc.
Metasys® System Extended Architecture Smoke Control System Technical Bulletin
Published in U.S.A.
21
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