Trend Control Systems Direct Digital Control Systems for HVAC Specification

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SECTION 15910

DIRECT DIGITAL CONTROL SYSTEMS FOR HVAC

** NOTE TO SPECIFIER ** Trend Control Systems; direct digital control systems for HVAC,
This section is based on the products of Trend Control Systems, which is located at:
6670 185th Ave. N. E.
Redmond, WA 98052
Phone: 425-897-3900
Fax: 425-869-8445
Email: Kara.veach@trendcontrols.com
Web: www.trend-americas.com
Trend understands that buildings are subjected to diverse and, at times, extreme weather conditions. Providing owners with the satisfactory data enabling them to control and monitor their building, while at the same time providing a comfortable working environment for those within, becomes a difficult requirement to fulfill. Trend is one of the leading Building Management Systems manufacturers serving worldwide HVAC markets. We provide totally integrated HVAC systems solutions to the complicated requirements that many types of buildings demand today. All specific applications, product variations and installations are only carried out through the unique Trend quality approved distribution and supply network of dealers or Trend Technology Centers (TTCs).
Our solutions are industry leading because they're easy to design, configure, use and maintain. But easy doesn't mean bare bones. We base our complete line of products on our powerful, comprehensive distributed control platform and open protocols for solutions that fit every imaginable need for your building. Trend's world class EMS solutions are brought to the local market through the expertise of your local controls and energy experts, our Trend Technology Centers. They customize the design, installation and service programs.
Our Trend Technology Centers (TTCs) are also your source for parts and service for many Novar Logic One installations around the USA. Our current TTC group evolved from what used to be Novar Technology Centers, so we have thousands of Novar customers we presently serve and support. Many of these customers are upgrading their Novar systems with Trend solutions because we have multiple options for quickly and economically connecting the old with the new, enabling them to leverage their current investments while positioning their buildings for future technological advances. Many large multi-site customers are served by Novar Controls directly, so if you are inquiring about an existing multi-site retail site, contact us directly at todd.cowles@trendcontrols.com. We can direct you to the appropriate account manager at Novar or, if you prefer, we'll put you in touch with our TTC that serves that particular account.

PART 1

GENERAL

1.1

SECTION INCLUDES

Direct digital control equipment and software for HVAC systems.

1.2

RELATED SECTIONS

** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.

Section 15050 - Basic Mechanical Materials and Methods: Piping and terminal units requirements.

Section 16050 - Basic Electrical Materials and Methods: Terminal unit rough-in requirements.

1.3

REFERENCES

American National Standards Institute (ANSI):

ANSI MC 85.1: Terminology for Automatic Control.

1.4

SYSTEM DESCRIPTION

A fully integrated building automation system, incorporating direct digital control (DDC) for energy management, equipment monitoring and control. Use of multiple manufacturers' products is not allowed.

A peer-to-peer network of DDC controllers and a Web-based operator interface. Depict each mechanical system and building floor plan by a point-and-click graphic. A Web server with a network interface card shall gather data from the system and generate Web pages accessible through a conventional Web browser on each PC connected to the network. Operators shall be able to perform all normal operator functions through the Web browser interface.

** NOTE TO SPECIFIER ** This references section 2.5 SYSTEM DISPLAY PANEL. Coordinate with owner for requirements.

A network system touch screen display shall reside on site for local system interface to control and monitor all system equipment.

Provide DDC controls for boilers, chillers, variable air volume air handlers and terminal units, radiation, unit heaters, fan coils and unit ventilators.

Provide control system consisting of thermostats, control valves, dampers operators, indicating devices, interface equipment and other apparatus and accessories to operate mechanical systems and to perform functions specified.

Provide installation and calibration, supervision, adjustments and fine tuning necessary for complete and fully operational system.

** NOTE TO SPECIFIER ** This paragraph should be referenced in Variable Speed Drive section.

Provide and perform factory start-up of all variable speed drives (VSD) as part of this contract. Drive installation shall be carried out by Division 16.

1.5

SUBMITTALS

Submit under provisions of Section 01300.

Product Data: Manufacturer's data sheets on each system component and software module to be used, including:

Preparation instructions and recommendations.

Storage and handling requirements and recommendations.

Manufacturer's Installation Instructions: Submit installation instruction for each control system component.

Manufacturer's certificate: Certify products meet or exceed specified requirements.

Shop Drawings: Indicate the following:

Network riser diagrams showing programmable control unit locations and network data conductors.

Connected data points, including connected control unit and input-output device.

System graphics showing monitored systems, data (connected and calculated).

System configuration with peripheral devices, batteries, power supplies, diagrams, modems and interconnections.

Description and sequence of operation for operating user.

Closeout Submittals:

Execution Requirements: Requirements for submittals.

Project Record Documents:

Record actual locations of control panels and components, including control units, thermostats and sensors.

Revise shop drawings to reflect actual installation and operating sequences.

Submit data specified in "Submittals" in final "Record Documents" form.

Operation and Maintenance Data:

Submit interconnection wiring diagrams, complete field installed systems with identified and numbered, system components and devices.

Submit inspection period, cleaning methods, cleaning materials recommended and calibration tolerances.

1.6

QUALITY ASSURANCE

Manufacturer Qualifications: Company specializing in manufacturing products specified in this section with a minimum of ten years global experience.

** NOTE TO SPECIFIER ** Delete if not required.

Technology Center: Maximum distance of 120 miles (193 km) from project site.

Installer Qualifications: Company specializing in performing work of this section with a minimum five years documented HVAC experience, trained, certified and approved by manufacturer.

Single Source Requirements: A single manufacturer shall to the greatest extent possible, manufacture system components.

** NOTE TO SPECIFIER ** Delete if not required.

Preinstallation Meetings: Conduct meeting to discuss responsibilities and administrative requirements associated with the work of this section.

1.7

DELIVERY, STORAGE, AND HANDLING

Store products in manufacturer's unopened, labeled packaging until ready for installation.

Store products within the range of manufacturer's recommended limits for environmental conditions including but not limited to temperature and humidity.

1.8

WARRANTY

** NOTE TO SPECIFIER ** Delete or alter text below to meet project requirements.

Installer is responsible for the following warranties:

Standard two year warranty on all control products and labor associated with this project.

Five year warranty on all motorized valves and damper operators.

Three year warranty on all variable speed drives associated with this project.

1.9

SERVICE

Execution Requirements: Requirements for service.

Furnish service and maintenance of control systems for one year from date of substantial completion. Include complete service of control systems including callbacks. Make a minimum of two complete normal inspections of four hours duration in addition to normal service calls to inspect, calibrate and adjust controls.

Perform work without removing units from service during normal building occupied hours.

Provide emergency call back service at all hours for this maintenance period.

Maintain at local branch office, adequate levels of replacement parts in stock for emergency purposes. Have personnel available to ensure fulfillment of this maintenance service, without reasonable loss of time.

Perform maintenance work using competent and qualified personnel under supervision and in direct employ of manufacturer or original installer.

PART 2

PRODUCTS

2.1

MANUFACTURERS

Acceptable Manufacturer: Trend Control Systems, which is located at: 6670 185th Ave. N. E. ; Redmond, WA 98052; Tel: 425-897-3900 ; Fax: 425-869-8445; Email: Kara.veach@trendcontrols.com; Web: www.trend-americas.com

** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.

Substitutions: Not permitted.

Requests for substitutions will be considered in accordance with provisions of Section 01600.

2.2

MATERIALS

Use new products the manufacturer is currently producing and selling for use in new installations. Do not use this installation as a product test site unless explicitly approved in writing by Owner. Spare parts shall be available for at least five years after completion of this contract.

Single Source Requirements: A single manufacturer shall to the greatest extent possible, manufacture system components.

2.3

COMMUNICATION

Control products, communication media, hubs, and routers shall comprise a unified control network. Acceptable network mediums are Cat 5 Ethernet or twisted pair networks. Controller products and hardware or software gateways shall be from a single manufacturer.

Use existing TCP/IP Ethernet backbone for network segments to all DDC Building Controller panels marked on project drawings. Project drawings indicate remote buildings or sites to be connected via intranet or Internet connections. In each remote location an intranet or Internet connection shall be provided for connection to the building automation system (BAS).

Connection to BAS shall be by connecting to any Ethernet port in the facility for temporary connection to a laptop computer or other operator interface such as a Pocket PC or system display panel. In addition, any workstation in the facilities may be used for Web browser communication to BAS system. Connection shall support commissioning and troubleshooting operations.

System shall automatically synchronize controller time clocks daily from an operator-designated controller via the network. If applicable, system shall automatically adjust for daylight saving and standard time.

System shall communicate in a peer-to-peer way and discretely check for system errors and verify controller communications.

** NOTE TO SPECIFIER ** This section references Trend EnergySuite, EnergyEye and 963 supervisor software with full Web capabilities and PC hardware.

2.4

OPERATOR INTERFACE

Monitoring, Displaying and Reporting of Energy Data:

The DDC System shall monitor Electricity at the main incoming service to the facility or as approved and shall display power consumption in KW hours, demand in KW and power factor based on previous day, previous week, previous month or previous year and should also allow for selecting the dates between which data needs to be viewed.

The DDC system shall monitor the Water meter, and shall display current consumption and cumulative consumption in Gallons based on previous day, previous week, previous month or previous year and should also allow for selecting the dates between which data needs to be viewed.

The DDC system shall monitor the Natural Gas meter, and shall display current consumption and cumulative consumption in MCF based on previous day, previous week, previous month or previous year and should also allow for selecting the dates between which data needs to be viewed.

All these parameters shall be displayed on an Energy Dashboard. The dashboard will utilize the data from the DDC system and will be hosted locally. The dashboard should normalize electricity consumption based on degree days so as to show the true energy consumption. The dashboard should generate reports in Microsoft Excel for all the data that is being displayed.

Operation: Graphical User Interface shall have full Client-Server capabilities. Server PC shall reside on the data network and be accessible from building intranet or Internet as specified by building owner by a standard Web browser.

No other software or data files will be required on client PCs other than a standard Web browser with Java enabled.

Server shall be able to connect to remote buildings via telephone modem links and via intranet or Internet across firewalls.

Only one Server PC shall be required in the event Owner wants to expand system to future facilities.

In the event of failure, the Server PC will not be required to run for normal operation of the DDC system.

Communication: Server PC and Building Controller network backbone shall communicate using ISO 8802-3 (Ethernet) Data Link/Physical layer using TCP/IP protocol. GUI software shall have the capability to connect to remote sites via intranet, Internet or over standard telephone lines without the need for supervisory software at remote sites.

BACnet Communication: GUI software to provide access to BACnet devices. GUI shall map BACnet devices in the system, enabling consistent supervision tasks between devices. GUI shall allow values from the BACnet devices to be included in schematic pages, and also enable users to make adjustments to and receive alarms from those devices.

Hardware. Server PC shall be an industry standard PC and consist of the following as a minimum:

Processor: Intel Pentium IV (or later) 2.66GHz processor.

Hard Drive: 2MB cache 7200rpm.

40 GB hard disk.

RAM: 1 GB RAM.

Network Card: Ethernet network card 100Mb/s.

PCI slots: 1 standard size for Ethernet card.

Graphics card: Capable of 1280 x 1024 resolution and 8bit/256 colors.

Parallel or USB ports: 1 for alarm printer.

Mouse, keyboard and 17 inches (432 mm) flat panel color monitor.

10.

Printer: 1 Dot Matrix printer for Alarms if specified by owner.

11.

Operating System: Windows XP Professional SP3.

Database Generation and Backup: The Graphical User Interface software shall have the capability to generate its database automatically and will self-learn on connection to the DDC system. This function will also apply if any future facilities are added to the DDC system. System databases should have the capability to be backed up on a regular basis to a specified location.

Graphical Functionality: Operator interface shall be graphically based and shall include at least one graphic per piece of equipment or occupied zone, graphics for each chilled water and hot water system, and graphics that summarize conditions on each floor of each building included in this contract. Graphics shall allow operator to monitor system status, to view a summary of the most important data for each controlled zone or piece of equipment, to use point-and-click navigation between zones or equipment, and to edit setpoints and other specified parameters.

Graphical file types supported should include BMP, GIF, JPEG, WMF and EMF files as a minimum.

The following files types shall be able to be integrated into graphics pages: SWF, HTML, DOC, XLS, XML, PPT, PDF and URL as a minimum.

Graphics pages shall be able to be organized into folders in a menu tree format for easy navigation between buildings and areas of buildings.

A full graphics library should be included showing typical mechanical components such as Boilers, Chillers and AHUs.

All dynamic data shown on the GUI shall be in live format. Data shown from a database of parameters is not acceptable. All dynamic data points when clicked shall allow the operator to change setpoints and parameters or view data logs.

Data logs. Multi-trace color data logs should be able to be viewed in a single window or in text format. Zoom in-out features shall be supported when viewing data logs. Charting of points or live data recording of values shall also be supported.

Dynamic graphics shall be capable of 3D color dynamic movement to indicate status of controlled plant and color shifts to represent temperatures in occupied zones.

Graphical buttons and icons shall provide access to other graphic pages or screens or command custom sequences or events or other custom screens.

GUI shall support script commands to initiate automatic viewing of graphics pages or system commands from a button or icon.

Database Functionality: The Graphical User Interface (GUI) software shall include Microsoft Data Engine (MSDE) databases and be capable of SQL commands and interrogation from enterprise level software applications. GUI shall also have a dedicated graphical database view of connected DDC systems connected in site, LAN and controller, similar to windows explorer style view of connected DDC systems. The database viewer shall support viewing of all hardware IO and software points, changes to system parameters and schedules and viewing of data logs and active alarms should be accessible from this view. User filtering of inputs, outputs, setpoints and schedules shall be provided allowing the operator to search database for point types or by point name.

Schedule Management: It is not acceptable for the GUI to be the sole system scheduling device. Schedules and exceptions shall reside at the controller level and be unaffected should the GUI be disabled for any reason. The GUI shall support the following scheduling features:

Allow users to manage multiple controller occupation times into groups in the following ways. By system, building, area of building or single occupied zone. GUI shall allow schedules to be added or removed from schedule groups.

Users should be able to implement holiday or other schedule exceptions to a Global, building, area of building or single occupied zone level.

A calendar display of all normal operating schedule times and exceptions shall be shown. Exceptions dates shall be shown in different color formats for ease of identification by user. Exception scheduling shall be able to be carried out at least 20 years in advance as a minimum. Annual recurring exception dates should be implemented once only without the need for further user interaction.

Normal operating schedules should be shown in a graphical form in week format. Day operating times should have the ability to be copy and pasted for day, week or working week.

Schedule On-Off Periods. A minimum of 50 on-off periods per day shall be available for selection.

Alarm Monitoring: It is not acceptable for the GUI to be the sole system alarm monitor. Alarms shall be generated at the controller level and reported alternatively should the GUI be disabled for any reason. Every system alarm at network, controller or device level, any user adjustment of the system or failure of a scheduled event shall be logged, time and date stamped in the alarm database. Alarm database will show active, active/acknowledged, cleared and cleared/acknowledged alarms. It shall be possible to view alarms in chronological or summary views. Alarms shall show time of occurrence, type of alarm, origin and explanation of alarm in text format. Alarms shall be delivered automatically to central GUI over intranet, Internet or phone lines. In addition, the GUI shall have the following features:

Alarms shall be filtered and grouped to enable specific alarm actions and retransmissions dependent on the type of alarm received.

Once an alarm has been initiated, an active alarm panel window shall be flashed on screen with an audible alert. Alarms shall be silenced and/or actioned from the alarm panel and specific graphic pages shall be shown dependent on alarm filter and group.

Once an alarm has been received at the GUI, the alarm shall be forwarded dependent on which alarm filter and group the alarm is associated with. Alarms shall be capable of being forwarded in the following methods without the need for additional software:

As an email to any valid email address.

As a cell phone text message via the Internet.

As a cell phone text message via SMS directly from the GUI PC.

In SNMP format to existing network management software.

To any other DDC system alarm receiver such as a system display panel.

To an attached or network printer.

Event Scheduling: Automated scheduled events shall be user configurable and all pending or past events shall be viewed in chronological format or be filtered by event type. In addition, all automated scheduled events shall have the capability of being manually initiated, edited or deleted at any time by the operator. Scheduled events shall include but not be limited to:

Data log recording upload to database.

Automated schedule download.

System time synchronization.

Automated database backup.

Automated printing of graphics pages.

Internet Connectivity: GUI software shall allow for access to any intranet or Internet Web site or IP address to allow seamless integration to any Web-enabled equipment or systems such as access, lighting, fire and security systems. Web or IP addresses shall have the ability to be saved and named for later use. GUI software shall allow for access to any building controllers configuration or programming mode via controllers Web interface.

GUI software shall have a multi-level security system. Each user shall have a unique username and password set up in the PC server and each user shall belong to a user workgroup that has identical access rights to all the functional areas of the GUI software. No access to the GUI shall be possible until a valid username and password has been entered. GUI software shall create an alarm and log to the alarms database whenever a user logs in or out of the system. In addition, any activity such as setpoint, parameter or schedule changes made by that user shall also be logged to the alarm database. In addition, the GUI software shall provide access level workgroups with the following features:

Each workgroup shall have a login graphics page assigned and will display the page whenever a user belonging to the workgroup logs in.

Each graphical button, icon and graphics folder shall have a security level and users shall have no access to that item should a user have a lower access level.

Each workgroup shall be linked in software to the available alarm groups. If the alarm group is not linked, the user shall have no access to those alarms.

Each graphics folder shall be linked to user workgroups. If the folder is not linked to the workgroup, the user shall have no access to the graphics pages within the folder.

Each workgroup shall have a logout interval established to automatically log out a user after an inactivity period.

Each workgroups users shall have multiple configuration rights to the GUI. Users shall not be able to configure the following GUI functions unless workgroup level permits.

Configure data logs or automatic data log recordings.

Configure scheduled events.

Configure alarm handling filters, groups and retransmissions.

Configure, add, delete or edit graphics pages.

Close down the software.

Configure time schedules or schedule group exceptions.

Add or remove controller points from the database.

Configure users and workgroups.

** NOTE TO SPECIFIER ** This section references 963 Supervisor software with FDA compliant features for pharmaceutical applications.

FDA Compliance: GUI shall have the capability without the need for extra or third-party software tools to aid in compliance with Food and Drug Administration (FDA) regulation 21 CFR part 11. Extra security features shall as a minimum include:

A system administrator level of security for adding, editing and deleting users from the system.

Enforce regular security password changes.

Enforce strong passwords which shall be of specified minimum length and have a mixture of letters and numbers.

Enforce password failure access. If a user enters the wrong password more than a specified number of times they are locked out of the system until reset by the administrator.

Provide an audit trail of any changes that effect system performance.

Provide Mean Kinetic Temperature (MKT) calculations on selected temperatures within the system.

System Tools: GUI shall include context-sensitive online help on the server PC and include dynamic graphical displays on how to operate, edit and configure all functional areas of the software.

Reports and Logs: Operator shall be able to select, to modify, to create, and to print reports and logs. Operator shall be able to store report data in a format accessible by standard spreadsheet and word processing programs.

** NOTE TO SPECIFIER ** This section references Trend Open Network Node (TONN).

Integration Capability: GUI software shall have Dynamic Data Exchange (DDE) capability to integrate third-party software packages. Hardware utilizes the Niagara(AX) Framework to integrate HVAC systems and non-HVAC systems in a building. Provide integration software/hardware from single manufacturer to include:

BACnet IP.

BACnet MSTP.

EIB/KNX IP.

LONFIT.

LONIP.

Modbus RTU.

MasterModbus RTU Slave.

Modbus TCP Master.

Modbus TCP Slave.

10.

MBus Serial.

11.

MBus IP.

12.

oBIX.

13.

SNMP.

** NOTE TO SPECIFIER ** If required, provide integration software/hardware from single manufacturer in to include:

14.

Flex over RS232.

15.

Flex over RS485.

16.

Micros Fidelio hotel booking system (IP).

17.

Global Cache.

18.

Horstmann serial.

19.

Helvar serial.

20.

American Automatrics PHP over RS232 or RS485.

21.

American Automatrics PUP over RS232 or RS485.

22.

Andover AC256 serial.

23.

Andover Infinity/Continuum serial.

24.

Resol solar water heating controller serial.

25.

Protect fire panel serial.

** NOTE TO SPECIFIER ** This section references TL1.

26.

NovarNet.

27.

Trend.

Web Client User Interface: Once connected to the BAS server via standard Web browser, Web clients shall have the functionality to access the BAS system without the need for manufacturer's software or files on workstations. Web clients shall have the capability of connection to the server from anywhere on the intranet or Internet. Areas of functionality supported via Web interface to server shall include as a minimum:

Security and access. Once a valid username and password is entered, user shall have access to all areas of functionality and graphics supported by their security level as described in this section.

Graphics functionality. Color animated graphics pages as created on the server shall be shown identically on a Web browser. They shall allow operator to monitor system status, to view a summary of the most important data for each controlled zone or piece of equipment, to use point-and-click navigation between zones or equipment, and to edit setpoints and other specified parameters as created on the server from the Web browser.

System database functionality. Users shall be able to navigate through the system from the database view of connected DDC systems via site, LAN and controller view format as shown on the server. User shall also have the ability to filter points and change setpoints and schedules from this view.

Data log functionality. User shall have the ability to view multi-trace color graphs and data logs from a Web browser.

Schedule management functionality. Users shall be able to edit time schedules and add, edit or delete exceptions from a Web browser.

Alarm handling functionality. Incoming alarms shall generate alarm panels identically as shown on the server. Users shall be able to action and filter any incoming alarms to the system from a Web browser.

** NOTE TO SPECIFIER ** This section references SDU smart display unit. Coordinate with owner for requirements.

Local Display Panel:

Each building controller panel shall have a local display panel for monitoring and adjusting the connected controllers parameters, input and outputs. The panel shall have a backlit display with a 4x20 line character set. Each local display shall have the capability to adjust setpoints and time schedules.

** NOTE TO SPECIFIER ** This section references IQView system touchscreen display. Coordinate with owner for requirements and location.

2.5

SYSTEM DISPLAY PANEL

A display panel shall be provided for any areas where there is no intranet or local system connection and regular user interface is required. Display panel shall be wall or panel-mounted and have a color, backlit LCD touchscreen display. Display shall present users with a familiar windows-based operating environment. System access shall be provided via a navigator tree, enabling controller selection, access to input-output and software point status and values, setpoint and schedule adjustments and viewing of data logs in graph format. System Display Panel shall have the following capabilities as a minimum:

Self-learn connected system without the need for any download or database creation.

Ethernet connection to system. Display panel shall be able to communicate via TCP/IP over Intranet and Internet connections to remote system.

Configurable for 8 individual users with varying access rights to system.

Configurable to accept all or certain system alarms. Acknowledge and delete system alarms.

Alarm Annunciation. Display panel shall be configurable to annunciate alarms in any or all of the following ways:

Flash LED output.

Flash screen on and off.

Built-in audible alarm.

Close built-in relay alarm contact for activating remote strobe or siren.

Provide a System Display Panel in the following locations:

Main Mechanical equipment room.

2.6

PROGRAMMING SOFTWARE

Building and energy management applications shall reside and operate in controllers. Program software shall be used only to download, edit or modify program applications.

Specification: Programming tool shall be a drag and drop, graphical function block windows based application tool and shall create a database of program applications in all building controllers. Program software shall create a file for each building controller on the system. For each building controller there shall be a page of graphical programming information. Each page shall contain a specific sequence of operation carried out by a controller.

Documentation: Software tool shall create an 8 inches by 11 inches (203 mm by 279 mm) page for each sequence within a controller. Each page and controller program shall be printed and attached as part of the as-built package supplied by contractor.

Communication: Software shall be able to communicate with controllers by direct serial, Ethernet via intranet and Internet or modem connections.

Custom Application Programming: Operator shall be able to create, edit, debug, and download custom programs to building controllers. System shall be fully operable while custom programs are edited and compiled. Programming language shall have the following features:

Language: Language shall be graphically based and shall use function blocks arranged in a logic diagram that clearly shows control logic flow. Function blocks shall directly provide functions listed below, and operators shall be able to create all function blocks.

Programming Environment: Tool shall provide a full-screen, cursor-and-mouse-driven programming environment that incorporates word processing features such as copy, cut and paste. Operators shall be able to insert, add, modify, and delete custom programming code, and to copy blocks of code to a file library for reuse in other control programs.

Peer to Peer Program Modules: Operator shall be able to develop independently executing program modules that can disable, enable and exchange data with other program modules and controllers.

On-line checkout: Software shall have the capability to download, upload and view all program parameters and program function blocks live in real-time when connected to system. Program strategies shall be able to be added, deleted or edited live while on-line without the need for download and restart of controllers.

Strategy Simulation: Software shall provide simulation mode which simulates a building controller allowing a strategy to be tested before it is downloaded to a controller.

Override: Software shall have the capability of overriding any hardware or software value with operator's specified value.

Database reconciliation: Operator shall be able to upload controller database and compare to current database diagram. Diagram shall be automatically updated to include all parameter changes since last update.

Conditional Statements: Operator shall be able to program conditional logic using compound Boolean (AND, OR, and NOT) and relational (EQUAL, LESS THAN, GREATER THAN, NOT EQUAL) comparisons.

Mathematical Functions: Language shall support floating-point addition, subtraction, multiplication, division, and square root operations, as well as absolute value calculation and programmatic selection of minimum and maximum values from a list of values. Both direct and reverse acting PID loops shall be supported. Software shall have PID Loop tuning tool built-in as standard.

Once a function has been created it shall be re-used and dynamically linked to any page on the controller programming tool.

After completion, all programming databases and software shall reside on facilities workstation PC for troubleshooting and editing.

** NOTE TO SPECIFIER ** This section references IQ3xcite and IQ3xact Web-enabled controllers.

2.7

BUILDING CONTROLLERS

General: Provide Building Controllers (BC) as required to achieve sequence of operation. Provide one BC for each piece of mechanical equipment such as air handler, rooftop or central plant application. Controller shall be capable of adequately covering all IO points listed in points list plus 25% expansion capability. Using more than one BC to carry out an equipment application is not acceptable.

Stand-Alone Operation: Each BC on the BAS system shall be of true stand-alone operation. All schedules, data logs, time-clock, alarms graphics and program application shall reside in the controller. BCs that require global or master controllers or devices are not acceptable. Each BC shall be able to broadcast data from one to another or globally throughout the system in a true peer-to-peer way, any data value within the controller to any other controller, specified group of controllers, or globally around the system. Controllers shall build LAN and Internetwork communications across data networks and routers and report communications loss to Operator Interface.

Hardware Design: BCs shall be modular in design and be mounted on standard DIN Rail for ease of replacement and expansion. Every input or output shall have 2-part connectors provided to facilitate commissioning and replacement. BCs shall have a minimum of 16 IO points and be capable of expanding to a total of 128 input-output points through a series of plug in input-output modules. Input-output modules shall be connected to the BC by a CAN network bus and have the capability of being mounted up to 33 feet from controller. Each BC shall provide a serial service communication port for connection to a Portable Operator's Terminal or connection to a local controller display panel.

Hardware: Controllers shall be powered by 24VAC or DC and shall be protected by a self-resetting solid state circuit breaker and bus communications shall be protected by a multiuse. Controllers shall be rated to operate at plus or minus 15%. Each BC shall have LED status indication of network, bus, power and controller failure.

Environment: Controller hardware shall be suitable for anticipated ambient conditions and mounted in plenum or inside specified equipment. Controllers shall have the following specifications as a minimum:

UL916 Listed: Enclosed Energy Management Equipment.

Temperature: rated at 32 degree F to 120 degree F (0 degrees C to 49 degrees C).

Humidity: 0 to 90% RH non-condensing.

Memory: BC shall have flash memory that is non-volatile to power cycles. Application program and controller parameters shall be stored in flash in case of a power outage. Controllers using batteries to store program or parameters are not acceptable. A minimum of 16MB of SDRAM and 8MB of Flash memory shall be employed at each controller.

Network Communication: Each BC shall have a minimum of one 10BaseT Ethernet port as its primary network communications connection and communicate directly on the buildings TCP/IP data network without the need for master control panels. Each BC shall have an on-board Web server that will allow local or remote system control, monitoring and configuration via a standard Web browser.

BACnet Communication: Each BC shall be native BACnet and integrate seamlessly with a BACnet system, communicating on a BACnet IP LAN at up to 10Mbps.

** NOTE TO SPECIFIER ** This section references IQView4 Touchscreen Display. Coordinate with owner for requirements.

Touch Screen Display: Provide a touchscreen display which provides an interface to the building controller by way of its local supervisor port. The display shall provide access to modules, graphs, and timezones. Display shall be at a minimum 4" LCD touch screen color display, and housed with the electronics in a single unit suitable for rear panel mount applications. The display shall provide a 'Home' screen and the unit shall be programmable with a number of favorite screens.

Real Time Clock: Each BC shall have a Real Time Clock. In case of a power outage the time-clock shall be maintained for 6 days by a capacitor. Any BC shall have the ability to act as the system time-master. System timemaster will automatically adjust to Daylight Savings Times.

Sequencing: BC shall execute all program sequences independent of program size once per second. Controller shall execute all program and mathematical functions and PID Loops.

Scheduling: BC controllers shall provide the following schedule options as a minimum. All schedule, exception or holiday changes shall be configurable from the Web browser interface or the Operator Interfaces.

Weekly. Provide separate schedules for each day of the week. Each schedule shall be able to include up to 50 occupied periods (50 start-stop pairs). Days shall have the ability of being copied and pasted from the Web browser.

Exception. Operator shall be able to designate an exception schedule for each of the next 365 days in advance. After an exception schedule has executed, system shall discard and replace exception schedule with standard schedule for that day of the week. Exceptions shall have up to 16 priority levels. Should exceptions overlap, exception with highest priority level shall take precedence over others with lower priorities. Exceptions shall be added, edited or adjusted from the Web browser.

Holiday. Web operator shall be able to define holiday exception schedules of varying length on a scheduling calendar that repeats each year.

Controller shall support multiple shifted scheduling, enabling start-stop of equipment up to 6 hours before-after normal schedule start-stop. Shifted scheduling shall also support Optimized start-stop.

Optimized start-stop. One optstart-stop function shall be assigned to any schedule within the controller. Optstart functions shall be self-learning and shall have operator adjustable start-stop limits.

Data Logs: Each BC shall be able to log any data within a controller at one second, 1 minute, 5 minute, 10 minute, 15 minute, 20 minute, 30 minute, 1 hour, 6 hour or 24 hour intervals. 1000 points of data shall be held in data log until last value is overwritten. Multiple data logs with differing intervals shall have the capability of being attached to any data point. Any data log shall be viewed from the browser or Operator Interfaces. Data logs shall be viewed in graphical or text format by the operator.

Alarms: BCs shall generate alarms configured by the programming tool. Alarms shall be sent to the operator interface workstation. In event that operator workstation is off-line for any reason, alarms shall be sent to the system Display Panel, via email or cell phone text message directly from the controller across the data network to any internal or external email or cell phone email address. Alarms shall have the capability of being sent to different locations depending on schedule status or operator defined alarm group. An internal alarm log shall record the last 50 alarms generated by controller. Alarm log shall be viewed from the browser or Operator Interfaces.

Graphics: Each BC shall be capable of containing graphics pages of the connected mechanical equipment as well as the application program. Dynamic data points shall be shown on graphical backdrops representing all hardware and software points within the controller. Graphics pages shall contain links to other graphics pages within the controller, other building controllers on the BAS system, any intranet or Internet Website and any valid email address. Controller shall have the ability to add any user defined text to any graphics page. Graphics pages shall be accessible from any standard Web browser on the intranet or Internet.

Security: Each BC shall have username and password security with the ability to have a unique username and password for up to 500 users. In addition, each user shall have a level of access from 0 to 100 to the controller ranging from read only access through to full configuration rights to the controller. Access to the controller shall be read only until a valid username and password is entered via any standard Web browser. All users and levels of access shall be configurable by the operator. Each user shall have a default graphics page assigned and loaded when valid username and password is entered.

Controller Input-Outputs: All controller inputs and outputs may be overridden on-off or by any analog value of the operator's choice via a standard Web browser. In addition an override timer may be initiated to switch all inputs-outputs to automatic operation after user has logged out.

Controller inputs shall all be Universal Inputs and be selectable by moving a jumper for the required input type. Controller shall support thermistor, 0-10vdc voltage and 0-20 or 4-20mA current inputs with 12-bit resolution. All digital inputs shall be volt free contacts capable of pulse counting up to 30 pulses per second. When input is selected for digital, LED shall indicate when contact is closed. All sensor scaling and curves shall be software configurable.

Controller shall have analog or Form C relay outputs. Analog outputs shall be modulating 0-10Vdc and current limited to 20mA as required to properly control output devices. All analog outputs shall have modulating LED's to indicate output voltage. Analog outputs shall have 11-bit resolution as a minimum. Form-C relay outputs shall have common, normally-open and normally-closed contacts. All relay outputs shall have LED's to indicate relay status.

Protection. All input and outputs shall have over-voltage protection built-in to protect main board from failure.

PID Loops: Loops shall have the capability to be sequenced once per second and switched between occupied and unoccupied setpoints. In addition, a manual override and level may be initiated and implemented in logic. PID Loops shall support drift-limit alarm and controlled input alarms. Should controlled input fail or alarm, one of the following actions shall be initiated:

Maintain output at level when sensor failed and return to normal operation on alarm clear.

Automatically go to pre-defined controlled input value and return to normal operation on alarm clear.

Automatically go to pre-defined loop output level and return to normal operation on alarm clear.

Automatically go to pre-defined loop output level and stay there until a alarm clears and a manual override is initiated by operator.

Runtime Totalization: Controller shall provide an algorithm that can totalize runtime for each digital input or output and calculate the number of starts. Operator shall be able to enable runtime alarm based on exceeded adjustable runtime limit via the Web browser interface.

Staggered Start: Controller shall stagger controlled equipment restart after power outage. Operator shall be able to adjust equipment restart order and time delay between equipment restarts via the Web browser interface.

Web Browser: In addition, the Web browser interface shall support the following functions on the building controller other than outlined above:

Configuration and editing of any function or programming module stored within the controller.

Operator override of any function module or software point within the controller in addition to the physical input-outputs.

Support of navigation through logic flow diagram to support commissioning via the browser.

Display lists of each type of function or programming module within the controller in numerical order and highlight any current alarm points in flashing red format.

Operation will be mouse driven point and click between views, graphics and modules. Values shall be changed by drop-down menus or by clicking and typing in open fields.

** NOTE TO SPECIFIER ** This section references IQeco31, IQeco35, IQeco38, IQeco39, IQecoVAV P, and IQecoVAV P A BACnet controllers.

2.8

BACnet UNITARY CONTROLLERS

Provide fully programmable BACnet VAV controllers with or without an on-board actuator. Both shall include a built-in airflow sensor and a pressure transducer. BACnet VAV controllers shall have a pre-loaded strategy and also shall be fully programmable.

Provide fully programmable BACnet unitary controllers with universal I/O for terminal equipment control of RTU�s, HP, FCU, UV, and others.

Network Communication. As a BACnet controller, the unitary controllers shall integrate seamlessly with the building control system, communicating at up to 76.8Kbps on a BACnet MS/TP LAN.

Hardware Design. BACnet VAV controller actuator shall be left or right mountable with ability to set actuator to clockwise or counter-clockwise rotation. BACnet unitary controllers shall be DIN-rail mounted and have software-configurable inputs and outputs allowing for compatibility with a wide range of HVAC and other control and monitoring applications.

Room display temperature sensor with three digit display used to monitor and control set points, fan speed and occupancy.

** NOTE TO SPECIFIER ** This section reference the TR-TOUCHVIEW and TR-TOUCHVIEW-W.

2.9

BACNET TOUCHSCREEN THERMOSTAT

Communicating sensor-controller with built-in humidity sensor and optional integrated wireless receiver.

Factory-loaded applications to include:

Air-to-air heat pump, compressor, 1 stage auxiliary heating, analog economizer-float economizer.

Water source heat pump, compressor, 1 stage auxiliary heating, analog economizer-float economizer.

Air-to-air heat pump, compressor, 2 stage auxiliary heating, analog economizer.

Water source heat pump, compressor, 2 stage auxiliary heating, analog economizer.

A/C 1 compressor, 1 stage heat, analog economizer-float economizer.

A/C 2 compressor, 2 stage heat, analog economizer.

4 pipe fan-coil, float heating, float cooling, analog economizer.

4 pipe fan-coil, 2-position heating and cooling valves, 3-speed fan (continuous fan, fan speed is user selectable or may be configured to change the speed based on HTG/CLG demand).

4 pipe fan-coil, 2-position heating and cooling valves, 3-speed fan (fan-cycles w/heating and cooling, speed based on HTG/CLG demand).

10.

4 pipe fan-coil, 2-position heating and cooling valves, 3-speed fan (fan-cycles with heating and cooling (reconfigured inputs, speed based on HTG/CLG demand).

11.

Air-to-air heat pump, 1 stage auxiliary heating, analog economizer, dehumidification 3- speed fan. Continuous fan and fan speed is user selectable or may be configured to change the speed based on HTG/CLG demand.

24 VAC power.

For wireless function, system shall communicate over 433.92 MHz signal between controller and sensor.

2.10

AUXILARY CONTROL DEVICES

Low-Voltage Space Thermostats and Aquastats: Low-voltage space thermostats shall be 24 V, bimetal-operated, snap-action switch type, with adjustable anticipation heater, concealed setpoint adjustment, 40�F-90�F setpoint range, 2�F maximum differential, and vented ABS plastic cover.

Line-Voltage Space Thermostats and Aquastats: Line-voltage space thermostats shall be bimetal-actuated, open-contact type or bellows-actuated, enclosed, snap-switch type or equivalent solid-state type, with heat anticipator, UL listing for electrical rating, concealed setpoint adjustment, 55�F-85�F setpoint range, 2�F maximum differential, and vented ABS plastic cover.

Low-Limit Freezestats: Low-limit airstream thermostats shall be of vapor pressure type. Element shall be at least 20 ft long. Element shall sense temperature in each 1 ft section and shall respond to lowest sensed temperature. Low-limit freezestat shall be manual reset.

** NOTE TO SPECIFIER ** Section references RD room display sensor. Coordinate with owner for option 5 or 6.

Temperature Sensors: Temperature sensors shall be thermistor or 4-20mA dependent on application.

Duct Supply Air Sensors. Terminal unit supply duct sensors shall be 6 inches (152 mm) long thermistor. AHU supply duct sensors shall be 16 inches (406 mm) long thermistors of type 10KII.

Mixed air sensors shall be averaging sensors shall be a minimum of 5 feet (1524 mm) in length per 10 sf (0.92 sq. m) of duct cross-section. Sensors shall generate a 4 to 20mA signal.

Immersion Sensors. Provide immersion sensors with a separable stainless steel or brass well. Well pressure rating shall be consistent with system pressure it will be immersed in. Well shall withstand pipe design flow velocities. Immersion sensors shall be thermistor of type 10KII.

Outside Air Sensors shall be mounted on north facing wall and be a 10K type II thermistor. Sensor shall be mounted in a water-proof enclosure.

Space Sensors. Space sensors shall be wall mounted thermistors and shall have setpoint adjustment and override button options. See plans for required types and locations. Space sensors shall be 10KII type thermistors and shall have guards fitted on locations shown on plans.

Digital Readout Space Sensors. Space sensors shall be wall mounted thermistors and shall have a digital readout of temperature, setpoint and occupancy status. Adjustments shall include setpoint and occupancy. See plans for required types and locations. Space sensors shall be 10KII type thermistors and shall have guards fitted on locations shown on plans.

Humidity Sensors:

Duct and room sensors shall have a sensing range of 20%-80%.

Duct sensors shall have a sampling chamber.

Outdoor air humidity sensors shall have a sensing range of 20%-95% RH and shall be suitable for ambient conditions of 40 degree F to 170 degree F (4 degrees C to 77 degrees C).

Humidity sensors shall not drift more than 1% of full scale annually.

Humidity sensors shall have a 2% rated accuracy.

Flow Switches: Flow-proving switches shall be paddle (water service only) or differential pressure type (air or water service) as shown. Switches shall be UL listed, SPDT snap-acting, and pilot duty rated (125 VA minimum).

Paddle switches shall have adjustable sensitivity and NEMA 1 enclosure unless otherwise specified.

Differential pressure switches shall have scale range and differential suitable for intended application and NEMA 1 enclosure unless otherwise specified.

Relays:

Control Relays: Control relays shall be plug-in type, UL listed, and shall have dust cover and LED "energized" indicator. Contact rating, configuration, and coil voltage shall be suitable for application.

Time Delay Relays: Time delay relays shall be solid-state plug-in type, UL listed, and shall have adjustable time delay. Delay shall be adjustable �100% from setpoint shown. Contact rating, configuration, and coil voltage shall be suitable for application. Provide NEMA 1 enclosure for relays not installed in local control panel.

Relay-in-Box: Shall be UL listed and have a compact NEMA 1 housing with 1/2 or 3/4 inches (13 mm or 19 mm) NPT nipples. Relays shall have LED "energized" indication. Wires shall be color-coded. Contact rating, configuration, and coil voltage shall be suitable for application.

Current Transmitters:

AC current transmitters shall be self-powered, combination split-core current transformer type with built-in rectifier and high-gain servo amplifier with 4 to 20 mA two-wire output. Full-scale unit ranges shall be 10 A, 20 A, 50 A, 100 A, 150 A, and 200 A, with internal zero and span adjustment. Unit accuracy shall be �1% full-scale at 500 ohm maximum burden.

Transmitter shall meet or exceed ANSI/ISA S50.1 requirements and shall be UL/CSA recognized.

Unit shall be split-core type for clamp-on installation on existing wiring.

Current Transformers:

AC current transformers shall be UL recognized and shall be completely encased (except for terminals) in approved plastic material.

Transformers shall be available in various current ratios and shall be selected for �1% accuracy at 5 A full-scale output.

Use fixed-core transformers for new wiring installation and split-core transformers for existing wiring installation.

Voltage Transformers:

AC voltage transformers shall be UL recognized, 600 VAC rated, and shall have built-in overload trip protection.

Transformers shall be suitable for ambient temperatures of 40 degree F to 130 degree F (4 degrees C to 54 degrees C) and shall provide �0.5% accuracy at 24 Vac and 5 VA load.

Windings (except for terminals) shall be completely enclosed with metal or plastic.

Current Switches:

Current-operated switches shall be self-powered, solid-state with adjustable trip current. Select switches to match application current and DDC system output requirements. Any current switches used on VSDs shall be specialized for VSD application. Current switches shall be Veris Hawkeye or equivalent.

Pressure Transducers:

Transducers shall have linear output signal and field-adjustable zero and span.

Continuous operating conditions of positive or negative pressure 50% greater than calibrated span shall not damage transducer sensing elements.

Water pressure transducer diaphragm shall be stainless steel with minimum proof pressure of 150 psi (1,034 kPa). Transducer shall have 4 to 20 mA output, suitable mounting provisions, and block and bleed valves.

Water differential pressure transducer diaphragm shall be stainless steel with minimum proof pressure of 150 psi (1,034 kPa). Over-range limit (differential pressure) and maximum static pressure shall be 300 psi (2,068 kPa). Transducer shall have 4-20 mA output, suitable mounting provisions, and 5-valve manifold.

Differential Pressure Switches. Differential pressure switches (air or water service) shall be UL listed, SPDT snap-acting, pilot duty rated (125 VA minimum) and shall have scale range and differential suitable for intended application and NEMA 1 enclosure unless otherwise specified.

Local Control Panels:

Indoor control panels shall be fully enclosed NEMA 1 construction with hinged door key-lock latch and removable sub-panels. A common key shall open each control panel and sub-panel.

Prewire internal and face-mounted device connections with color-coded stranded conductors tie-wrapped or neatly installed in plastic troughs. Field connection terminals shall be UL listed for 600 V service, individually identified per control and interlock drawings, with adequate clearance for field wiring.

Each Building Control panel shall have one 110Vac power outlet for connecting laptops or Portable Operators Terminal.

2.11

ELECTRONIC ACTUATORS AND VALVES

Quality Assurance for Actuators and Valves:

UL Listed Standard 873 and C.S.A. Class 4813 02 certified.

NEMA 2 rated enclosures for inside mounting, provide with weather shield for outside mounting.

Five-year manufacturer's warranty. Two-year unconditional and three-year product defect from date of installation.

Execution Details for Actuators and Valves:

Furnish a Freeze-stat and install "Hard Wire" interlock to disconnect the mechanical spring return actuator power circuit for fail-safe operation. Use of the control signal to drive the actuators closed is not acceptable.

Each DDC analog output point shall have an actuator feedback signal, independent of control signal, wired and terminated in the control panel for true position information and troubleshooting. Or the actuator feedback signal may be wired to the DDC as an analog input for true actuator position status.

VAV box damper actuation shall be floating type or analog (2 to 10VDC, 4 to 20mA).

Booster-heat valve actuation shall be floating type or analog (2 to 10vdc, 4 to 20ma).

Primary valve control shall be analog (2 to 10VDC, 4 to 20mA).

Actuators for damper and control valves 0.5 to 6 inches (13 mm to 152 mm) shall be electric unless otherwise specified, provide actuators as follows:

UL Listed Standard 873 and Canadian Standards association Class 481302 shall certify actuators.

NEMA 2 rated actuator enclosures for inside mounting. Use additional weather shield to protect actuator when mounted outside.

Five-year manufacturer's warranty. Two-year unconditional and Three year product defect from date of installation.

Mechanical spring shall be provided when specified. Capacitors or other non-mechanical forms of fail-safe are not acceptable.

Position indicator device shall be installed and made visible to the exposed side of the actuator. For damper short shaft mounting, a separate indicator shall be provided to the exposed side of the actuator.

Overload Protection: Actuators shall provide protection against actuator burnout by using an internal current limiting circuit or digital motor rotation sensing circuit. Circuit shall insure that actuators cannot burn out due to stalled damper or mechanical and electrical paralleling. End switches to deactivate the actuator at the end of rotation are acceptable only for butterfly valve actuators.

A Pushbutton gearbox release shall be provided for all non-spring actuators.

Modulating actuators shall be 24VAC and consume 10VA power or less.

Conduit connectors are required when specified and when code requires it.

Damper Actuators:

Outside air and exhaust air damper actuators shall be mechanical spring return. capacitors or other non-mechanical forms of fail-safe are not acceptable. The actuator mounting arrangement and spring return feature shall permit normally open or normally closed positions of the damper as required.

Economizer actuators shall utilize analog control 2-10VDC, floating control is not acceptable.

Electric damper actuators (including VAV box actuators) shall be direct shaft-mounted and use a V-bolt and toothed V-clamp causing a cold weld effect for positive gripping. Single bolt or set-screw type fasteners are not acceptable.

One electronic actuator shall be direct shaft-mounted per damper section. No connecting rods or jackshafts shall be needed. Small outside air and return air economizer dampers may be mechanically linked together if one actuator has sufficient torque to drive both and damper drive shafts are both horizontal installed.

Multi-section dampers with electric actuators shall be arranged so that each damper section operates individually. One electronic actuator shall be direct shaft-mounted per damper section. (See below execution section for more installation details.)

Valve Actuators: 0.5 to 6 inches (13 mm to 152 mm).

Mechanical spring shall be provided on all actuators for pre-heat coil and actuators for AHU heating or cooling coil when units are mounted outside. See plans for fail-safe flow function: Normal Open or Normal Closed. Capacitors or other non-mechanical forms of fail-safe are not acceptable.

All zone service actuators shall be non-spring return unless otherwise specified.

The valve actuator shall be capable of providing the minimum torque required for proper valve close-off for the required application.

All control valves actuators shall have an attached 3-foot (1 m) cable for easy installation to a junction box.

Override handle and gearbox release shall be provided for all non-spring return valve actuators.

** NOTE TO SPECIFIER ** Pick either BAS or sheet metal contractor. Delete contactor type not required.

Control Dampers:

The BAS contractor shall furnish and size all automatic control dampers unless provided with packaged equipment. The sheet metal contractor shall install all dampers unless provided with packaged equipment.

The sheet metal contractor shall furnish and size all automatic control dampers unless provided with packaged equipment. The sheet metal contractor shall install all dampers unless provided with packaged equipment.

All dampers used for modulating service shall be opposed blade type and arranged for normally open or normally closed operation as required. The damper is to be sized so that, when wide open, the pressure drop is a sufficient amount of its close-off pressure drop for effective throttling.

All dampers used for two-position or open-close control shall be parallel blade type arranged for normally open or closed operation as required.

Damper linkage hardware shall be constructed of aluminum or corrosion-resistant zinc and nickel-plated steel and furnished as follows:

Bearing support bracket and drive blade pin extension shall be provided for each damper section. Sheet metal contractor shall install bearing support bracket and drive blade pin extension. Sheet metal contractor shall provide permanent indication of blade position by scratching or marking the visible end of the drive blade pin extension.

Drive pin may be round only if V-bolt and toothed V-clamp is used to cause a cold weld effect for positive gripping. For single bolt or set-screw type actuator fasteners, round damper pin shafts shall be milled with at least one side flat to avoid slippage.

Damper manufacturer shall supply alignment plates for all multi-section dampers.

Control Valves: 0.5 to 6 inches (13 mm to 152 mm).

The BAS contractor shall furnish all specified motorized control valves and actuators. BAS contractor shall furnish all control wiring to actuators. The plumbing contractor shall install all valves. Equal percentage control characteristic shall be provided for all water coil control valves. Linear valve characteristic is acceptable for 3-way valves that are 2.5 inches (64 mm) and above.

Characterized control valves shall be used for hydronic heating or cooling applications and small to medium AHU water-coil applications to 100 gpm (379 lpm). Actuators are non-spring return for terminal unit coil control unless otherwise noted. If the coil is exposed to the outside air stream, see plans for spring return requirement.

Leakage is aero percent, close-off is 200 psi (1379 kPa), maximum differential is 30 psi (206 kPa); rangeablity is 500:1.

Valves 0.5 to 2 inches (13 mm to 51 mm) shall be nickel-plated forged brass body, NPT screw type connections.

Valves 0.5 to 1.25 inches (13 mm to 32 mm) shall be rated for ANSI Class 600 working pressure. Valves 1.5 and 2 inches (38 mm and 51 mm) shall be rated for ANSI Class 400 working pressure.

The operating temperature range shall be 0 to 250 degrees F (-18 degrees C to 121 degrees C).

Stainless steel ball and stem shall be furnished on all modulating valves.

Seats shall be fiberglass reinforced Teflon.

Two-way and three-way valves shall have an equal percentage control port. Full stem rotation is required for maximum flow to insure stable BTU control of the coil.

Three-way valve shall be applicable for both mixing and diverting.

The characterizing disc is made of TEFZEL and shall be keyed and held secure by a retaining ring.

The valves shall have a blow-out proof stem design.

The stem packing shall consist of 2 lubricated O-rings designed for on-off or modulating service and require no maintenance.

The valves shall have an ISO type, 4-bolt flange for mounting actuator in any orientation parallel or perpendicular to the pipe.

A non-metallic thermal isolation adapter shall separate valve flange from actuator.

One fastening screw shall secure the direct coupling of the thermal isolation adapter between the actuator and the valve. This will prevent all lateral or rotational forces from affecting the stem and its packing O-rings.

Globe valves 0.5 to 2 inches (13 mm to 51 mm) shall be used for steam control or water flow applications.

Valves shall be bronze body, NPT screw type, and shall be rated for ANSI Class 250 working pressure.

Valves 0.5 inches (13 mm) (DN15) through 2 inches (51 mm) (DN50) with spring return actuators shall close off against 50 psi (345 kPa) pressure differential with Class III leakage (0.1%).

The operating temperature range shall be 20 to 280 degrees F (-7 degrees C to 138 degrees C).

Spring loaded TFE packing shall protect against leakage at the stem.

Two-way valves shall have an equal percentage control port.

Three-way valves shall have a linear control and bypass port.

Mixing and diverting valves shall be installed specific to the valve design.

Globe Valve 2.5 to 6 inches (64 mm to 152 mm):

Valves 2.5 inches (64 mm) (DN65) through 6 inches (152 mm) (DN50) shall be iron body, 125 lb (57 kg) flanged with Class III (0.1%) close-off leakage at 50 psi (354 kPa) differential.

Valves with spring return actuators shall close off against 50 psi (354 kPa) pressure differential with Class III leakage (0.1%).

Flow type for two-way valves shall be equal percentage. Flow type for three-way valves shall be linear.

Mixing and diverting valves shall be installed specific to the valve design.

Butterfly Valves:

Butterfly valves shall be sized for modulating service at 60 to 70 degree stem rotation. Isolation valves shall be line-size. Design velocity shall be less than 12 feet (3.7 m) per second when used with standard EPDM seats.

Body is cast iron.

Disc is aluminum bronze standard.

Seat is EPDM standard.

Body Pressure is 200 psi (1379 kPa), -30 to 275 degrees F.

Flange is ANSI 125/250.

Media Temperature Range is -22 to 240 degree F (-28 degrees C to 116 degree C).

Maximum Differential Pressure is 200 psi (1379 kPa) for 2 to 6 inches (51 mm to 152 mm) size.

Butterfly Valve Industrial Actuators:

Actuators shall be approved under Canadian Standards Association or other Nationally Recognized Testing Laboratory to UL standards. CSA Class 4813 02 or equal. Enclosure shall be NEMA 4 (weatherproof) enclosure and will have an industrial quality coating.

Actuator shall have a motor rated for continuous duty. The motor shall be fractional horsepower; permanent split capacitor type designed to operate on a 120VAC, 1pH, 60Hz supply. Two adjustable cam-actuated end travel limit switches shall be provided to control direction of travel. A self-resetting thermal switch shall be imbedded in the motor for overload protection.

Reduction gearing shall be designed to withstand the actual motor stall torque. Gears shall be hardened alloy steel, permanently lubricated. A self-locking gear assembly or a brake shall be supplied.

Actuator shall have a 6 feet (1.8 m) wiring harness provided for ease in field wiring (above 1500 in-lbs (169 Nm)). Two adjustable SPDT cam-actuated auxiliary switches, rated at 250VAC shall be provided for indication of open and closed position. Actuator shall have heater and thermostat to minimize condensation within the actuator housing.

Actuator shall be equipped with a hand wheel for manual override to permit operation of the valve in the event of electrical power failure or system malfunction. Hand wheel shall be permanently attached to the actuator and when in manual operation electrical power to the actuator will be permanently interrupted. The hand wheel will not rotate while the actuator is electrically driven.

The actuator shall be analog, floating, or two position as called out in the control sequence of operation. All Analog valves shall be positive positioning, and respond to a 2 to 10VDC, 4 to 20mA, or adjustable signal as required. Analog actuators shall have a digital control card allowing any voltage input for control and any DC voltage feedback signal for position indication.

Performance Verification Test:

Control loops shall cause productive actuation with each movement of the actuator and actuators shall modulate at a rate that is stable and responsive. Actuator movement shall not occur before the effects of previous movement have affected the sensor.

Actuator shall have capability of signaling a trouble alarm when the actuator Stop-Go Ratio exceeds 30%.

Actuator mounting for damper and valve arrangements shall comply to the following:

Damper actuators: Shall not be installed in the air stream

A weather shield shall be used if actuators are located outside. For damper actuators, use clear plastic enclosure.

Damper or valve actuator ambient temperature shall not exceed 122 degrees F (50 degrees C) through any combination of medium temperature or surrounding air. Appropriate air gaps, thermal isolation washers or spacers, standoff legs, or insulation shall be provided as necessary.

Actuator cords or conduit shall incorporate a drip leg if condensation is possible. Water shall not be allowed to contact actuator or internal parts. Location of conduits in temperatures dropping below dew point shall be avoided to prevent water from condensing in conduit and running into actuator.

Damper mounting arrangements shall comply to the following:

The ventilation subcontractor shall furnish and install damper channel supports and sheet metal collars.

No jack shafting of damper sections shall be allowed.

Multi-section dampers shall be arranged so that each damper section operates individually. One electronic actuator shall be direct shaft mounted per section.

Size damper sections based on actuator manufacturer's specific recommendations for face velocity, differential pressure and damper type. In general:

Damper section shall not exceed 24 sf with face velocity >1500 fpm (2.2 sq. m with face velocity >457 mpm).

Damper section shall not exceed 18 sf with face velocity > 2500 fpm (1.7 sq. m with face velocity >762 mpm).

Damper section shall not exceed 13 sf with face velocity > 3000 fpm (1.2 sq. m with face velocity >914 mpm).

Multiple section dampers of two or more shall be arranged to allow actuators to be direct shaft mounted on the outside of the duct.

Multiple section dampers of three or more sections wide shall be arranged with a 3-sided vertical channel (8 inches wide by 6 inches deep (203 mm by 152 mm)) within the duct or fan housing and between adjacent damper sections. Vertical channel shall be anchored at the top and bottom to the fan housing or building structure for support. The sides of each damper frame shall be connected to the channels. Holes in the channel shall allow damper drive blade shafts to pass through channel for direct shaft-mounting of actuators. Open side of channel shall be faced downstream of the airflow, except for exhaust air dampers.

Multiple section dampers to be mounted flush within a wall or housing opening shall receive either vertical channel supports as described above or sheet metal standout collars. Sheet metal collars (12-inch (305 mm) minimum) shall bring each damper section out of the wall to allow direct shaft-mounting of the actuator on the side of the collar.

Valve Sizing for Water Coil:

On/Off control valves shall be line size.

Modulating control valve body size may be reduced, at most, two pipe sizes from the line size or not less than half the pipe size. The BAS contractor shall size all water coil control valves for the application as follows:

Booster-heat valves shall be sized not to exceed 4 to 9 psi (28 to 62 kPa) differential pressure. Size valve for 50% valve authority. Valve design pressure drop is equal to the sum of coil drop plus the balance valve drop.

Primary valves shall be sized not to exceed 5 to 15 psi (34 to 103 kPa) differential pressure. Size valve for 50% valve authority. Valve design pressure drop is equal to the sum of coil drop plus the balance valve drop.

Butterfly valves shall be sized for modulating service at 60 to 70 degree rotation. Design velocity shall be 12 feet per second (3.7 mps) or less when used with standard EPDM seats.

Valve mounting arrangements shall comply to the following:

Unions shall be provided on all ports of two-way and three-way valves.

Install three-way equal percentage characterized control valves in a mixing configuration with the "A" port piped to the coil.

Install 2.5 inches (64 mm) and above, three-way globe valves, as manufactured for mixing or diverting service to the coil.

2.12

WIRING RACEWAYS AND POWER SUPPLIES

General. Provide copper wiring, plenum cable, and raceways as specified in applicable sections of Division 16.

Insulated wire shall use copper conductors and shall be UL listed for 200 degree F (93 degrees C) minimum service and be plenum rated.

Power Supplies. Control transformers shall be UL listed. Furnish Class 2 current-limiting type or furnish over-current protection in primary and secondary circuits for Class 2 service in accordance with NEC requirements. Limit connected loads to 80% of rated capacity.

DC power supply output shall match output current and voltage requirements. Unit shall be full-wave rectifier type with output ripple of 5.0 mV maximum peak-to-peak. Regulation shall be 1.0% line and load combined, with 100-microsecond response time for 50% load changes. Unit shall have built-in over-voltage and over-current protection and shall be able to withstand 150% current overload for at least three seconds without trip-out or failure.

Wiring Standards and Identification. Control wiring shall conform to the following standards and color codes:

Ethernet Communication: Orange / CAT5E.

Twisted Pair Communication: Blue Jacket / 22-2.

Two Wire Sensors: Purple strip / 20-2/SH.

Wall Sensors: Purple Jacket / 22-6.

Digital Output: Green Stripe / 18/2.

Interface Device: Orange Stripe / 18/4.

ASC Power: Red Stripe / 16/2.

Comb Digital Input/Output: Orange Stripe / 18/4.

PART 3

EXECUTION

3.1

EXAMINATION

Thoroughly examine project plans for control device and equipment locations. Report discrepancies, conflicts, or omissions to Architect or Engineer for resolution before starting rough-in work.

Inspect site to verify that equipment can be installed as shown. Report discrepancies, conflicts, or omissions to Engineer for resolution before starting rough-in work.

3.2

INSTALLATION

Install control units and other hardware on permanent walls where not subject to excessive vibration.

Install controller software and implement features of programs to specified requirements and appropriate to sequence of operation.

A 120volt alternating current, dedicated power circuit to each programmable control panel shall be provided by Division 16.

Mechanical Rooms and exposed locations to be in full conduit.

Conduit sleeves in fire rated walls to be caulked with firestop and have bushings on both ends. All conduit stubs and knockouts to have bushings.

Plenum rated cable shall be used above drop ceilings and cable paths ran parallel to building structure or structural steel. Plenum cable to be supported at regular intervals by tie-wrap and anchor or tie wrap and bridal ring combinations at no more than 3 foot intervals.

3.3

FIELD SERVICES

Start and commission systems. Allow adequate time for start-up and commissioning prior to placing control systems in permanent operation. Allow time in this contract to work with commissioning agent if required.

3.4

COORDINATION

Site:

Assist in coordinating space conditions to accommodate the work of each trade where work will be installed near or will interfere with work of other trades.

Coordinate and schedule work with other work in the same area and with work dependent upon other work to facilitate mutual progress.

Test and Balance:

Provide Test and Balance Contractor a single set of necessary tools to interface to control system for testing and balancing.

Train Test and Balance Contractor to use control system interface tools.

Test and Balance Contractor shall return tools undamaged and in working condition at completion of testing and balancing.

3.5

GENERAL WORKMANSHIP

Install equipment, piping, and wiring or raceway horizontally, vertically, and parallel to walls wherever possible.

Provide sufficient slack and flexible connections to allow for piping and equipment vibration isolation.

Install equipment in readily accessible locations as defined by National Electrical Code (NEC) Chapter 1 Article 100 Part A.

Verify wiring integrity to ensure continuity and freedom from shorts and ground faults.

Equipment, installation, and wiring shall comply with industry specifications and standards and local codes for performance, reliability, and compatibility.

3.6

INSTALLATION OF SENSORS

Install sensors according to manufacturer's recommendations.

Mount sensors rigidly and adequately for operating environment.

Install room temperature sensors in the following ways:

On block walls mount on 2 x 4 inches (51 mm by 102 mm) box in wall with 1/2 inch (3 mm) conduit stubbed out above plenum ceilings.

On existing hollow walls mount on 2 x 4 inches (51 mm by 102 mm) box in wall with bushing knockout. If thermostats are to be mounted without box, use anchors. Screws without anchors are not acceptable.

On existing filled walls use surface wire mold or conduit depending on location. Co-ordinate with owner on acceptable method.

Use averaging sensors in mixing plenums and hot and cold decks. Install averaging sensors in a serpentine manner vertically across duct. Support each bend with a capillary clip.

Install mixing plenum low-limit sensors in a serpentine manner horizontally across duct. Support each bend with a capillary clip. Provide 1 feet (305 mm) of sensing element for each 3 sf (0.28 sq. m) of coil area.

Install pipe-mounted temperature sensors in wells. Install liquid temperature sensors with heat-conducting fluid in thermal wells.

Install outdoor air temperature sensors on north wall at designated location with sun shield.

Differential Air Static Pressure.

Supply Duct Static Pressure. Pipe high-pressure tap to duct using a pitot tube. Make pressure tap connections according to manufacturer's recommendations.

Return Duct Static Pressure. Pipe low-pressure tap to duct using a pitot tube. Make pressure tap connections according to manufacturer's recommendations.

Building Static Pressure. Pipe pressure sensor's low-pressure port to the static pressure port located on the outside of the building through a high-volume accumulator. Pipe high-pressure port to a location behind a thermostat cover.

Pressure transducers, except those controlling VAV boxes, shall be located in a vibration-free location accessible for service without use of ladders or special equipment.

Mount gauge tees adjacent to air and water differential pressure taps. Install shut-off valves before tee for water gauges.

Smoke detectors, freezestats, high-pressure cut-offs, and other safety switches shall be hard-wired to de-energize equipment as described in the sequence of operation. Switches shall require manual reset. Freezestats may be automatic reset if specified by building owner.

3.7

ACTUATORS

General. Mount actuators and adapters according to manufacturer's recommendations.

Electric and Electronic Damper Actuators: Mount actuators directly on damper shaft or jackshaft unless shown as a linkage installation. Link actuators according to manufacturer's recommendations.

For low-leakage dampers with seals, mount actuator with a minimum 5� travel available for damper seal tightening.

To compress seals when spring-return actuators are used on normally closed dampers, power actuator to approximately 5 degree open position, manually close the damper, then tighten linkage.

Check operation of damper-actuator combination to confirm that actuator modulates damper smoothly throughout stroke to both open and closed positions.

Provide necessary mounting hardware and linkages for actuator installation.

Valve Actuators. Connect actuators to valves with adapters approved by actuator manufacturer.

3.8

IDENTIFICATION OF HARDWARE AND WIRING

Label wiring and cabling, including that within factory-fabricated panels, with control system address or termination number at each end within 2 inches (51 mm) of termination.

Label pneumatic tubing at each end within 2 inches (51 mm) of termination with a descriptive identifier.

Permanently label or code each point of field terminal strips to show instrument or item served.

Label control panels with minimum 1 inch (25 mm) letters on laminated plastic nameplates.

3.9

SYSTEM CHECKOUT AND TESTING

Startup testing. Complete startup testing to verify operational control system before notifying owner of system demonstration.

Calibrate and prepare for service each instrument, control, and accessory equipment.

Verify that control wiring is properly connected and free of shorts and ground faults. Verify that terminations are tight.

Enable control systems and verify each input device's calibration. Calibrate each device according to manufacturer's recommendations.

Verify that binary output devices such as relays, solenoid valves, two-position actuators and control valves, and magnetic starters, operate properly and that normal positions are correct.

Verify that analog output devices such as actuators are functional, that start and span are correct, and that direction and normal positions are correct. Check control valves and automatic dampers to ensure proper action and closure. Make necessary adjustments to valve stem and damper blade travel.

Verify that system operates according to sequences of operation. Simulate and observe each operational mode by overriding and varying inputs and schedules. Tune PID loops and each control routine that requires tuning.

Alarms and Interlocks.

Check each alarm with an appropriate signal at a value that will trip the alarm.

Trip interlocks using field contacts to check logic and to ensure that actuators fail in the proper direction.

Test interlock actions by simulating alarm conditions to check initiating value of variable and interlock action.

3.10

TRAINING

Provide training for a designated staff of Owner's representatives. Training shall be provided through on-site computer-based training, classroom training, or a combination of training methods.

Training shall enable students to accomplish the following objectives.

Proficiently operate system.

Understand control system architecture and configuration.

Understand job layout and location of control components.

Understand DDC system components.

Understand system operation, including DDC system control and optimizing routines.

Log on and off system.

Access graphics, point reports, and logs.

Adjust and change system setpoints, time schedules, and holiday schedules.

Recognize common HVAC system malfunctions by observing system graphics, trend graphs, and other system tools.

10.

Understand system drawings and Operation and Maintenance manual.

11.

Access data from DDC controllers.

12.

Create, delete, and modify alarms, including configuring alarm reactions.

13.

Create, delete, and modify point trend logs (graphs) and multi-point trend graphs.

14.

Add new users and understand password security procedures.

15.

Provide online (Web-based) operator training for front end software.

16.

Provide optional Networking 101 course.

Provide course outline and materials. Provide one copy of training material per student.

Instructors shall be factory-trained and experienced in presenting this material.

Perform classroom training using documentation, PowerPoint presentations and software used on installed systems.

** NOTE TO SPECIFIER ** Coordinate with owner for training requirements.

Provide a total of 16 hours training as part of this contract.

END OF SECTION