230900_Instrumentation_and_Controls.pdf

A&E 15021.00 MAMMOTH HOT SPRINGS HOTEL REHABILITATION – PHASE 1

MAMMOTH HOT SPRINGS

YELLOWSTONE NATIONAL PARK, WYOMING

INSTRUMENTATION AND CONTROLS FOR HVAC 230900 - 1

SECTION 23 0900 - INSTRUMENTATION AND CONTROL FOR HVAC

PART 1 - GENERAL

1.1 GENERAL

A. The Building Management System (BMS) shall use an open architecture and fully support a multi-vendor environment. To accomplish this effectively, the BMS shall support open communication protocol standards and integrate a wide variety of third-party devices and applications. The system shall be designed for use on the Internet, or intranets using off the shelf, industry standard technology compatible with other owner provided networks.

B. The Building Management System shall consist of the following:

1. Standalone Network Automation Engine(s)

2. Field Equipment Controller(s)

3. Input/Output Module(s)

4. Local Display Device(s)

5. Distributed User Interface(s)

6. Network processing, data storage and communications equipment

7. Other components required for a complete and working BMS

C. The system shall be modular in nature, and shall permit expansion of both capacity and functionality through the addition of sensors, actuators, controllers and operator devices, while re-using existing controls equipment.

D. System architectural design shall eliminate dependence upon any single device for alarm reporting and control execution.

1. The failure of any single component or network connection shall not interrupt the execution of control strategies at other operational devices.

2. The System shall maintain all settings and overrides through a system reboot.

E. System architectural design shall eliminate dependence upon any single device for alarm reporting and control execution.

1. The System shall comply with the following International Code Council (ICC) Codes:

a. Building Officials and code Administrators International (BOMA) model code

b. International Conference of Building Officials (ICBO) model code

c. Southern Building Code Congress International (SBCCI) regulations

F. Acceptable Manufacturers

1. Johnson Controls, Inc., Metasys

a. All equipment shall be tied into existing Johnson Controls Metasys ADX server located in Mammoth.

1.2 BMS ARCHITECTURE

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A. Automation Network

1. The automation network shall be based on a PC industry standard of Ethernet TCP/IP. Where used, LAN controller cards shall be standard “off the shelf” products available through normal PC vendor channels.

2. The BMS shall network multiple user interface clients, automation engines, system controllers and application-specific controllers. Provide application and data server(s) as required for systems operation.

3. All BMS devices on the automation network shall be capable of operating at a communication speed of 100 Mbps, with full peer-to-peer network communication.

4. Network Automation Engines (NAE) shall reside on the automation network.

5. The automation network will be compatible with other enterprise-wide networks. Where indicated, the automation network shall be connected to the enterprise network and share resources with it by way of standard networking devices and practices.

B. Control Network

1. Network Automation Engines (NAE) shall provide supervisory control over the control network and shall support all three (3) of the following communication protocols:

a. BACnet Standard MS/TP Bus Protocol ASHRAE SSPC-135, Clause 9

b. The NAE shall be BACnet Testing Labs (BTL) certified and carry the BTL Label.

c. The NAE shall be tested and certified as a BACnet Building Controller (B-BC).

d. The Johnson Controls N2 Field Bus.

2. Control networks shall provide either “Peer-to-Peer,” Master-Slave, or Supervised Token Passing communications, and shall operate at a minimum communication speed of 9600 baud.

3. DDC Controllers shall reside on the control network.

4. Control network communication protocol shall be BACnet Standard MS/TP Bus Protocol ASHRAE

SSPC-135.

5. A BACnet Protocol Implementation Conformance Statement (PICS) shall be provided for each controller device (master or slave) that will communicate on the BACnet MS/TP Bus.

6. The PICS shall be submitted 10 days prior to bidding.

C. Integration

1. Hardwired

a. Analog and digital signal values shall be passed from one system to another via hardwired connections.

b. There will be one separate physical point on each system for each point to be integrated between the systems.

2. Direct Protocol (Integrator Panel)

a. The BMS system shall include appropriate hardware equipment and software to allow bi-directional data communications between the BMS system and 3rd party manufacturers’ control panels. The BMS shall receive, react to, and return information from multiple building systems, including but not limited to the chillers, boilers, variable frequency drives, power monitoring system, and medical gas.

b. All data required by the application shall be mapped into the Automation Engine’s database, and shall be transparent to the operator.

c. Point inputs and outputs from the third-party controllers shall have real-time interoperability with BMS software features such as: Control Software, Energy Management, Custom Process Programming, Alarm Management, Historical Data and Trend Analysis, Totalization, and Local Area Network Communications.

3. BACnet Protocol Integration - BACnet

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a. The neutral protocol used between systems will be BACnet over Ethernet and comply with the ASHRAE BACnet standard 135-2008.

b. A complete Protocol Implementation Conformance Statement (PICS) shall be provided for all BACnet system devices.

c. The ability to command, share point object data, change of state (COS) data and schedules between the host and BACnet systems shall be provided.

1.3 USER INTERFACE

A. Dedicated Web Based User Interface

1. Where indicated on plans the BMS Contractor shall provide and install a personal computer for command entry, information management, network alarm management, and database management functions. All real-time control functions, including scheduling, history collection and alarming, shall be resident in the BMS Network Automation Engines to facilitate greater fault tolerance and reliability.

2. Dedicated User Interface Architecture – The architecture of the computer shall be implemented to conform to industry standards, so that it can accommodate applications provided by the BMS Contractor and by other third party applications suppliers, including but not limited to Microsoft Office Applications. Specifically it must be implemented to conform to the following interface standards.

a. Microsoft Internet Explorer for user interface functions

b. Microsoft Office Professional for creation, modification and maintenance of reports, sequences other necessary building management functions

c. Microsoft Outlook or other e-mail program for supplemental alarm functionality and communication of system events, and reports

d. Required network operating system for exchange of data and network functions such as printing of reports, trends and specific system summaries

3. PC Hardware – The personal computer(s) shall be configured as follows:

a. Memory – 1 GB (512 MB Minimum)

b. CPU– Pentium 4 processor. 2.8 GHz Clock Speed (2.0 GHz minimum)

c. Hard Drive – 80 GB free hard drive space (40GB minimum)

d. Hard drive backup system – CD/RW, DVD/RW or network backup software provided by IT department

e. Ports – (2) Serial and (1) parallel, (2) USB ports

f. Keyboard – 101 Keyboard and 2 Button Mouse

g. CRT configuration – 1-2 CRTs as follows:

1) Each Display – 17” Flat Panel Monitor 1280 x 1024 resolution minimum

2) 16 bit or higher color resolution

3) Display card with multiple monitor support

h. LAN communications – Ethernet communications board; 3Comm or equal

4. Operating System Software

a. Windows XP Professional or Windows 7 (64 bit)

b. Where user interface is not provided via browser, provide complete operator workstation software package, including any hardware or software keys. Include the original installation disks and licenses for all included software, device drivers, and peripherals.

c. Provide software registration cards to the Owner for all included software.

B. Distributed Web Based User Interface

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1. All features and functions of the dedicated user interface previously defined in this document shall be available on any computer connected directly or via a wide area or virtual private network (WAN/VPN) to the automation network and conforming to the following specifications.

2. The software shall run on the Microsoft Internet Explorer (6.0 or higher) browser supporting the following functions:

a. Configuration

b. Commissioning

c. Data Archiving

d. Monitoring

e. Commanding

f. System Diagnostics

3. Minimum hardware requirements:

a. 1GB RAM

b. 2.0 GHz Clock Speed Pentium 4 Microprocessor

c. 100 GB Hard Drive.

d. 1 Keyboard with 83 keys (minimum).

e. SVGA 1024x768 resolution display with 64K colors and 16 bit color depth

f. Mouse or other pointing device

C. Site Management User Interface Application Components

1. Operator Interface

a. An integrated browser based client application shall be used as the user operator interface program.

b. The System shall employ an event-driven rather than a device polling methodology to dynamically capture and present new data to the user.

c. All Inputs, Outputs, Set points, and all other parameters as defined within Part 3, shown on the design drawings, or required as part of the system software, shall be displayed for operator viewing and modification from the operator interface software.

d. The user interface software shall provide help menus and instructions for each operation and/or application.

e. The system shall support customization of the UI configuration and a home page display for each operator.

f. The system shall support user preferences in the following screen presentations:

1) Alarm

2) Trend

3) Display

4) Applications

g. All controller software operating parameters shall be displayed for the operator to view/modify from the user interface. These include: set points, alarm limits, time delays, PID tuning constants, run-times, point statistics, schedules, and so forth.

h. The Operator Interface shall incorporate comprehensive support for functions including, but not necessarily limited to, the following:

1) User access for selective information retrieval and control command execution

2) Monitoring and reporting

3) Alarm, non-normal, and return to normal condition annunciation

4) Selective operator override and other control actions

5) Information archiving, manipulation, formatting, display and reporting

6) BMS internal performance supervision and diagnostics

7) On-line access to user HELP menus

8) On-line access to current BMS as-built records and documentation

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9) Means for the controlled re-programming, re-configuration of BMS operation and for the manipulation of BMS database information in compliance with the prevailing codes, approvals and regulations for individual BMS applications

i. The system shall support a list of application programs configured by the users that are called up by the following means:

1) The Tools Menu

2) Hyperlinks within the graphics displays

3) Key sequences

j. The operation of the control system shall be independent of the user interface, which shall be used for operator communications only. Systems that rely on an operator workstation to provide supervisory control over controller execution of the sequences of operations or system communications shall not be acceptable.

2. Navigation Trees

a. The system will have the capability to display multiple navigation trees that will aid the operator in navigating throughout all systems and points connected. At minimum provide a tree that identifies all systems on the networks.

b. Provide the ability for the operator to add custom trees. The operator will be able to define any logical grouping of systems or points and arrange them on the tree in any order. It shall be possible to nest groups within other groups. Provide at minimum 5 levels of nesting.

c. The navigation trees shall be “dock able” to other displays in the user interface such as graphics. This means that the trees will appear as part of the display, but can be detached and then minimized to the Windows task bar. A simple keystroke will reattach the navigation to the primary display of the user interface.

3. Alarms

a. Alarms shall be routed directly from Network Automation Engines to PCs and servers. It shall be possible for specific alarms from specific points to be routed to specific PCs and servers. The alarm management portion of the user interface shall, at the minimum, provide the following functions:

1) Log date and time of alarm occurrence.

2) Generate a “Pop-Up” window, with audible alarm, informing a user that an alarm has been received.

3) Allow a user, with the appropriate security level, to acknowledge, temporarily silence, or discard an alarm.

4) Provide an audit trail on hard drive for alarms by recording user acknowledgment, deletion, or disabling of an alarm. The audit trail shall include the name of the user, the alarm, the action taken on the alarm, and a time/date stamp.

5) Provide the ability to direct alarms to an e-mail address or alphanumeric pager. This must be provided in addition to the pop up window described above. Systems that use e-mail and pagers as the exclusive means of annunciating alarms are not acceptable.

6) Configuration of which NAE offline alarms are seen by each user

7) Any attribute of any object in the system may be designated to report an alarm.

8) The BMS shall annunciate diagnostic alarms indicating system failures and non-normal operating conditions.

9) The BMS shall allow a minimum of 4 categories of alarm sounds customizable through user defined wav.files.

10) The BMS shall annunciate application alarms at minimum, as required by Part 3.

4. Reports and Summaries

a. Reports and Summaries shall be generated and directed to the user interface displays, with subsequent assignment to printers, or disk. As a minimum, the system shall provide the following reports:

1) All points in the BMS

2) All points in each BMS application

3) All points in a specific controller

4) All points in a user-defined group of points

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5) All points currently in alarm

6) All points locked out

7) All user defined and adjustable variables, schedules, interlocks and the like.

b. Summaries and Reports shall be accessible via standard UI functions and not dependent upon custom programming or user defined HTML pages.

c. Selection of a single menu item, tool bar item, or tool bar button shall print any displayed report or summary on the system printer for use as a building management and diagnostics tool.

d. Provide the capability to view, command and modify large quantities of similar data in tailored summaries created online without the use of a secondary application like a spreadsheet.

Summary definition shall allow up to seven user defined columns describing attributes to be displayed including custom column labels. Up to 100 rows per summary shall be supported. Summary viewing shall be available over the network using a standard Web browser.

5. Schedules

a. A graphical display for time-of-day scheduling and override scheduling of building operations shall be provided. At a minimum, the following functions shall be provided:

1) Weekly schedules

2) Exception Schedules

3) Monthly calendars

b. Weekly schedules shall be provided for each group of equipment with a specific time use schedule.

c. It shall be possible to define one or more exception schedules for each schedule including references to calendars

d. Monthly calendars shall be provided that allow for simplified scheduling of holidays and special days for a minimum of five years in advance. Holidays and special days shall be user-selected with the pointing device or keyboard, and shall automatically reschedule equipment operation as previously defined on the exception schedules.

e. Changes to schedules made from the User Interface shall directly modify the Network Automation Engine schedule database.

f. Schedules and Calendars shall comply with ASHRAE SP135/2008 BACnet Standard.

g. The Calendar object supports an option to add a reference to another Calendar Object that is designated to be the master for the facility. Any Supervisory and BAC calendars can be configured to reference a single master Global Calendar. Changes to the master global calendar are automatically synced with all calendars that are referenced.

h. Selection of a single menu item or tool bar button shall print any displayed schedule on the system printer for use as a building management and diagnostics tool.

i. Software shall be provided to configure and implement optimal start and stop programming based on existing indoor and outdoor environmental conditions as well as equipment operating history

j. The system Solar Clock shall support the scheduling and energy management functions. The Solar Clock will calculate the sunrise, sunset, and sun angle values for a specified latitude and longitude. A time offset can also be specified. An example would be to use the Solar Clock object as a master to an interlock to turn lights on 30 minutes after sunset and off 30 minutes before sunrise.

6. Security/Passwords

a. Multiple-level password access protection shall be provided to allow the user/manager to user interface control, display, and database manipulation capabilities deemed appropriate for each user, based on an assigned password.

b. Each user shall have the following: a user name (accept 24 characters minimum), a password (accept 12 characters minimum), and access levels.

c. The system shall allow each user to change his or her password at will.

d. When entering or editing passwords, the system shall not echo the actual characters for display on the monitor.

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e. A minimum of six levels of access shall be supported individually or in any combination as follows:

1) Level 1 = View Data

2) Level 2 = Command

3) Level 3 = Operator Overrides

4) Level 4 = Database Modification

5) Level 5 = Database Configuration

6) Level 6 = All privileges, including Password Add/Modify

f. A minimum of 100 unique passwords shall be supported.

g. Operators shall be able to perform only those commands available for their respective passwords. Display of menu selections shall be limited to only those items defined for the access level of the password used to log-on.

h. Operators shall be further limited to only access, command, and modify those buildings, systems, and subsystems for which they have responsibility. Provide a minimum of 100 categories of systems to which individual operators may be assigned.

i. The system shall automatically generate a report of log-on/log-off and system activity for each user. Any action that results in a change in the operation or configuration of the control system shall be recorded, including: modification of point values, schedules or history collection parameters, and all changes to the alarm management system, including the acknowledgment and deletion of alarms.

j. The system shall have the ability to provide a Department of Defense (DoD) specific warning banner for applicable sites that warns the user they are accessing a restricted site.

k. After successful login to the Site Management Portal (SMP) the last time and date that user name was previously logged in is shown on the screen.

l. Each login attempt is recorded in the system Audit Log with the option to record the IP address of the PC that made the login.

7. Screen Manager

a. The system will allow a customized image on the login screen (i.e. organization name, logo).

b. User View navigations can be displayed as either a set of tabs or a drop down list.

c. Allows user preference for assigning of a background color for when an object is Out of Service which will enable the operator to quickly distinguish points that have been commanded to this state.

d. The User Interface shall be provided with screen management capabilities that allow the user to activate, close, and simultaneously manipulate a minimum of 4 active display windows plus a network or user defined navigation tree.

8. Dynamic Color Graphics

a. The graphics application program shall be supplied as an integral part of the User Interface.

Browser or Workstation applications that rely only upon HTML pages shall not be acceptable.

b. The graphics applications shall include a create/edit function and a runtime function. The system architecture shall support an unlimited number of graphics documents (graphic definition files) to be generated and executed. The graphics shall be able to display and provide animation based on real-time data that is acquired, derived, or entered.

c. Graphics runtime functions – A maximum of 16 graphic applications shall be able to execute at any one time on a user interface or workstation with 4 visible to the user. Each graphic application shall be capable of the following functions:

1) All graphics shall be fully scalable

2) The graphics shall support a maintained aspect ratio.

3) Multiple fonts shall be supported.

4) Unique background shall be assignable on a per graphic basis.

5) The color of all animations and values on displays shall indicate the status of the object attribute.

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6) Graphics that represent buildings or systems shall allow natural links and transitions between related detailed tabular views of data that complement the graphic.

d. Operation from graphics – It shall be possible to change values (set points) and states in system controlled equipment directly from the graphic.

e. Floor Plan graphics – The user interface shall provide graphic applications that summarize conditions on a floor. Floor plan graphics shall indicate thermal comfort using dynamic colors to represent zone temperature deviations from zone set point(s). Floor plan graphics shall display overall metrics for each zone in the floor.

f. Aliasing – Many graphic displays representing part of a building and various building components are exact duplicates, with the exception that the various variables are bound to different field values. Consequently, it shall be possible to bind the value of a graphic display to aliases, as opposed to the physical field tags.

g. Graphic editing tool – A graphic editing tool shall be provided that allows for the creation and editing of graphic files. The graphic editor shall be capable of performing/defining all animations, and defining all runtime binding.

1) The graphic editing tool shall provide a library of standard HVAC equipment, floor plan, lighting, security and network symbols.

2) The graphic editing tool shall provide for the creation and positioning of library symbols by dragging from tool bars or drop-downs and positioning where required.

3) The graphics editing tool shall permit the importing of AutoCAD drawings for use in the system.

4) The graphic editing tool shall be able to add additional content to any graphic by importing images in the SVG, PNG or JPG file formats.

9. Historical trending and data collection

a. Each Automation Engine shall store trend and point history data for all analog and digital inputs and outputs, as follows:

1) Any point, physical or calculated, may be designated for trending. Two methods of collection shall be allowed:

a) Defined time interval

b) Upon a change of value

2) Each Automation Engine shall have the capability to store multiple samples for each physical point and software variable based upon available memory, including an individual sample time/date stamp. Points may be assigned to multiple history trends with different collection parameters.

b. Trend and change of value data shall be stored within the engine and uploaded to a dedicated trend database or exported in a selectable data format via a provided data export utility. Uploads to a dedicated database shall occur based upon one of the following:

user-defined interval, manual command, or when the trend buffers are full. Exports shall be as requested by the user or on a time scheduled basis.

c. The system shall provide a configurable data storage subsystem for the collection of historical data. Data can be stored in SQL database format.

10. Trend data viewing and analysis

a. Provide a trend viewing utility that shall have access to all database points.

b. It shall be possible to retrieve any historical database point for use in displays and reports by specifying the point name and associated trend name.

c. The trend viewing utility shall have the capability to define trend study displays to include multiple trends

d. Displays shall be able to be single or stacked graphs with on-line selectable display characteristics, such as ranging, color, and plot style.

e. Display magnitude and units shall both be selectable by the operator at any time without reconfiguring the processing or collection of data. This is a zoom capability.

f. Display magnitude shall automatically be scaled to show full graphic resolution of the data being displayed.

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g. The Display shall support the user’s ability to change colors, sample sizes, and types of markers.

11. Database Management

a. Where a separate SQL database is utilized for information storage the System shall provide a Database Manager that separates the database monitoring and managing functions by supporting two separate windows.

b. Database secure access shall be accomplished using standard SQL authentication including the ability to access data for use outside of the Building Automation application.

c. The database managing function shall include summarized information on trend, alarm, event, and audit for the following database management actions:

1) Backup

2) Purge

3) Restore

d. The Database Manager shall support four tabs:

1) Statistics – shall display Database Server information and Trend, Alarm (Event), and

Audit information on the Metasys Databases.

2) Maintenance – shall provide an easy method of purging records from the Metasys

Server trend, alarm (event), and audit databases by supporting separate screens for creating a backup prior to purging, selecting the database, and allowing for the retention of a selected number of day’s data.

3) Backup – Shall provide the means to create a database backup file and select a storage location.

4) Restore – shall provide a restricted means of restoring a database by requiring the user to log into an Expert Mode in order to view the Restore screen.

e. The Status Bar shall appear at the bottom of all Metasys Database Manager Tabs and shall provide information on the current database activity. The following icons shall be provided:

1) Ready

2) Purging Record from a database

3) Action Failed

4) Refreshing Statistics

5) Restoring database

6) Shrinking a database

7) Backing up a database

8) Resetting internet information Services

9) Starting the Metasys Device Manager

10) Shutting down the Metasys Device Manager

11) Action successful

f. The Database Manager monitoring functions shall be accessed through the Monitoring Settings window and shall continuously read database information once the user has logged in.

g. The System shall provide user notification via taskbar icons and e-mail messages when a database value has exceeded a warning or alarm limit.

h. The Monitoring Settings window shall have the following sections:

1) General – Shall allow the user to set and review scan intervals and start times.

2) Email – Shall allow the user to create and review e-mail and phone text messages to be delivered when a Warning or Alarm is generated.

3) Warning – shall allow the user to define the Warning limit parameters, set the Reminder

Frequency, and link the e-mail message.

4) Alarm – shall allow the user to define the Alarm limit parameters, set the Reminder

Frequency, and link the e-mail message.

5) Database login – Shall protect the system from unauthorized database manipulation by creating a Read Access and a Write Access for each of the Trend, Alarm (Event) and Audit databases as well as an Expert Mode required to restore a database.

i. The Monitoring Settings Taskbar shall provide the following informational icons:

1) Normal – Indicates by color and size that all databases are within their limits.

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2) Warning - Indicates by color and size that one or more databases have exceeded their Warning limit.

3) Alarm - Indicates by color and size that one or more databases have exceeded their Alarm limit.

j. The System shall provide user notification via Taskbar icons and e-mail messages when a database value has exceeded a warning or alarm limit.

PART 2 - PRODUCTS

2.1 VALVE AND DAMPER ACTUATORS

A. General Requirements

1. Damper and valve actuators shall be electronic and/or pneumatic, as specified in the System Description section.

2. The manufacturer shall be ISO 9001 certified.

B. Electronic Damper Actuators

1. Spring Return Actuators:

a. Manufactured, brand labeled or distributed by Johnson Controls, Inc. or approved equivalent.

b. Regulatory Agency Listing: cULus ,CSA C22.2 No. 24-93, and CE marked

c. Direct-Coupled Design: Requires no crank arm or linkage for mounting to a shaft.

d. Coupling: toothed V-bolt clamp and nuts with toothed cradle.

e. Reversible Mounting: Provides either clockwise or counterclockwise operation.

f. Power Failure Operation: Mechanical spring return system drives load to the home position.

Other forms of internal energy storage for power failure operation are not acceptable.

g. Motor Technology:

1) Modulating Types: Microprocessor-controlled Brushless DC motor

2) On/Off Types: DC brush motor.

h. Overload Protection: Electronic stall detection protects from overload at all angles of rotation without the use of end switches.

i. Enclosure Ratings:

1) NEMA type 2 / IP54 mounted in any orientation.

j. Double-Insulated construction: Eliminate the need for electrical ground wires.

k. Wiring: Integral cables with colored and numbered conductors.

l. Sized for torque required to seal damper at load conditions

m. Parallel Operation: Actuators shall be available that are capable of being mechanically or electrically paralleled.

n. Proportional actuators shall be user configurable without the use of external computer software or programming tools. Calibration, input signal range selection, and control logic reversal shall be selectable with an external mode selection switch.

o. Operating Temperature Range:

1) 70 lb·in. Torque and Below: -40°F to 140°F

2) 71 lb·in. Torque and above: -40°F to 131°F

p. Power Requirements:

1) Modulating Types:

a) 27 lb·in. Torque and Below: 5VA maximum

b) 70 lb·in. to 19 lb·in.Torque: 8VA maximum

c) 89 lb·in. to 71 lb·in.Torque: 10VA maximum

d) 90 lb·in. to 177 lb·in.Torque: 16VA maximum

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2) 2-Position Types:

a) 27 lb·in. Torque and Below: 5VA maximum

b) 70 lb·in. to 19 lb·in.Torque: 7VA maximum

c) 71 lb·in. to 177 lb·in.Torque: 25VA maximum

2. Non-Spring Return Actuators:

a. Manufactured, brand labeled or distributed by Johnson Controls, Inc. or approved equivalent.

b. Regulatory Agency: UL Listed ,CSA Certified, and CE marked

c. Direct-Coupled Design: Requires no crank arm or linkage for mounting to a shaft.

d. Coupling:

1) Above 80 lb.·in.: toothed V-bolt clamp and nuts with toothed cradled

2) 80 lb.·in.and below: single cup-point set screw and toothed cradle.

e. Overload Protection: Electronic stall detection or magnetic slip clutch protects from overload at all angles of rotation without the use of end switches.

f. Minimum Enclosure Ratings:

1) Types with covered wiring terminals: NEMA type 2 / IP42 mounted in any orientation.

2) Types without covered wiring terminals: NEMA type 1 / IP30 or IP40.

3) Types with integrated cables: NEMA 2 / IP42 mounted in any orientation.

g. Sized for torque required to seal damper at load conditions

h. Parallel Operation: Actuators shall be available that are capable of being mechanically or electrically paralleled.

i. Proportional actuators shall be user configurable without the use of external computer software or programming tools.

j. Operating Temperature Range: -4°F to 122°F except for VAV and similar indoor applications in which case 32°F to 122°F is acceptable.

k. Power Requirements: 24 V with models available for both 24 VAC and 24 VDC operation, maximum

1) Above 80 lb.·in.: 7.5 VA at 24 VAC

2) 80 lb.·in.and below: 3.5 VA at 24VAC

l. The manufacturer shall provide 5-year limited warranty from the date of sale covering defects in material or workmanship.

2.2 SENSORS AND TRANSMITTERS

A. General Requirements

1. Installation, testing, and calibration of all sensors, transmitters, and other input devices shall be provided to meet the system requirements.

B. Temperature Sensors

1. General Requirements:

a. Sensors and transmitters shall be provided, as outlined in the input/output summary and sequence of operations.

b. The temperature sensor shall be of the resistance type, and shall be either two-wire 1000 ohm nickel RTD, or two-wire 1000 ohm platinum RTD.

c. The following point types (and the accuracy of each) are required, and their associated accuracy values include errors associated with the sensor, lead wire, and A to D conversion:

Point Type Accuracy

Chilled Water + .5°F.

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Point Type Accuracy

Room Temp + .5°F.

Duct Temperature + .5°F.

All Others + .75°F.

2. Room Temperature Sensors

a. Room sensors shall be constructed for either surface or wall box mounting.

b. Room sensors shall have the following options when specified:

1) Setpoint warmer/cooler dial or reset slide switch providing a +3 degree (adjustable) range.

2) Individual heating/cooling setpoint slide switches.

3) A momentary override request push button for activation of after-hours operation.

4) Analog thermometer.

3. Room Temperature Sensors with Integral Display

a. Room sensors shall be constructed for either surface or wall box mounting.

b. Room sensors shall have an integral LCD display and four button keypad with the following capabilities:

1) Display room air temperatures.

2) Display and adjust room comfort setpoint.

3) Display and adjust fan operation status.

4) Timed override request push button with LED status for activation of after-hours operation.

5) Display controller mode.

6) Password selectable adjustment of setpoint and override modes.

4. Thermo wells

a. Thermowell manufacturer shall have models available in stainless steel, brass body, and copper bulb.

b. When thermo wells are required, the sensor and well shall be supplied as a complete assembly, including wellhead and sensor.

c. Thermo wells shall be pressure rated and constructed in accordance with the system working pressure.

d. Thermo wells and sensors shall be mounted in a direct mount (no adapter) offering faster installation or 1/2” NFT saddle and allow easy access to the sensor for repair or replacement.

e. Thermo wells constructed of 316 stainless steel shall comply with Canadian Registration Number (CRN) pressure vessel rating.

5. Outside Air Sensors

a. Outside air sensors shall be designed to withstand the environmental conditions to which they will be exposed. They shall also be provided with a solar shield.

b. Sensors exposed to wind velocity pressures shall be shielded by a perforated plate that surrounds the sensor element.

c. Temperature transmitters shall be of NEMA 3R (IP54) or NEMA 4 (IP65) construction and rated for ambient temperatures.

d. The outdoor sensor can be easily mounted on a roof, pole or side of a building utilizing its already assembled mounting bracket.

e. Outside Relative Humidity sensors 0-100% full range of accurate measurement. Operating temperature -4 to 140F (-20 to 60C).

f. Outside temperature sensors operating temperature range is -40 to 140F, +/- .55F (+/- .3C).

6. Duct Mount Sensors

a. Duct mount sensors shall mount in an electrical box through a hole in the duct, and be positioned so as to be easily accessible for repair or replacement.

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b. Duct sensors shall be insertion type and constructed as a complete assembly, including lock nut and mounting plate.

c. For outdoor air duct applications, a weatherproof mounting box with weatherproof cover and gasket shall be used.

7. Averaging Sensors

a. For ductwork greater in any dimension that 48 inches and/or where air temperature stratification exists, an averaging sensor with multiple sensing points shall be used.

b. For plenum applications, such as mixed air temperature measurements, a continuous averaging sensor or a string of sensors mounted across the plenum shall be used to account for stratification and/or air turbulence. The averaging string shall have a minimum of 4 sensing points per 12-foot long segment.

c. Capillary supports at the sides of the duct shall be provided to support the sensing string.

8. Acceptable Manufacturers: Johnson Controls, Minco.

C. Humidity Sensors

1. The sensor shall be a solid-state type, relative humidity sensor of the Thin Film Capacitance or Bulk Polymer Design. The sensor element shall resist service contamination.

2. The humidity transmitter shall be equipped with non-interactive span and zero adjustments, a 2-wire isolated loop powered, 4-20 mA, 0-100% linear proportional output.

3. The humidity transmitter shall meet the following overall accuracy, including lead loss and Analog to Digital conversion. 3% between 20% and 80% RH @ 77 Deg F unless specified elsewhere.

4. Outside air relative humidity sensors shall be installed with a rain proof, perforated cover. The transmitter shall be installed in a NEMA 3R (IP54) or NEMA 4 (IP65) enclosure with sealtite fittings.

5. A single point humidity calibrator shall be provided, if required, for field calibration. Transmitters shall be shipped factory pre-calibrated.

6. Duct type sensing probes shall be constructed of 304 stainless steel, and shall be equipped with a neoprene grommet, bushings, and a mounting bracket.

7. Acceptable Manufacturers: Johnson Controls and Vaisala.

D. CO2 Sensors

1. Where shown on the drawings, C02 sensors shall have the following features:

a. Jumper selectable: 0-20mA, 4-20mA & 0-10VDC output

b. Liquid Crystal Display

2. The C02 sensors shall have the ability to monitor and output the following variables as required by the systems sequence of operations:

a. Zone carbon-dioxide

3. The C02 shall transmit the information back to the controller via jumper selectable 0-20mA, 4-20mA & 0-10VDC output signals.

a. The C02 sensors shall provide a maximum output current of 25mA; Maximum output voltage of 12.5V.

b. The C02 sensors shall be FCC compliant to CFR47 Part 15 subpart B Class A.

4. The C02 Sensors shall be available with

a. CO2 response time (0-63%) of 1 minute

b. Less than 0.083% of full scale/F˚ temperature dependence of CO2 output

c. Long term CO2 stability ±5% of full scale for 5 years

d. CO2 measurement accuracy of ±(40ppm + 2.0% of reading)

e. CO2 non-linearity of less than 1.0% of full scale

5. The C02 Sensors may include the following items :

a. Relay output module

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b. Liquid Crystal Display module

c. Analog temperature module with linear 0-10VDC output for 32-122F

E. Differential Pressure Transmitters

1. General Air and Water Pressure Transmitter Requirements:

a. Pressure transmitters shall be constructed to withstand 100% pressure over-range without damage, and to hold calibrated accuracy when subject to a momentary 40% over-range input.

b. Pressure transmitters shall transmit a 0 to 5 VDC, 0 to 10 VDC, or 4 to 20 mA output signal.

c. Differential pressure transmitters used for flow measurement shall be sized to the flow sensing device, and shall be supplied with Tee fittings and shut-off valves in the high and low sensing pick-up lines to allow the balancing Contractor and Owner permanent, easy-to-use connection.

d. A minimum of a NEMA 1 housing shall be provided for the transmitter. Transmitters shall be located in accessible local control panels wherever possible.

2. Low Differential Water Pressure Applications (0” - 20” w.c.)

a. The differential pressure transmitter shall be of industrial quality and transmit a linear, 4 to 20 mA output in response to variation of flow meter differential pressure or water pressure sensing points.

b. The differential pressure transmitter shall have non-interactive zero and span adjustments that are adjustable from the outside cover and meet the following performance specifications:

1) .01-20” w.c. input differential pressure range.

2) 4-20 mA output.

3) Maintain accuracy up to 20 to 1 ratio turndown.

4) Reference Accuracy: +0.2% of full span.

c. Acceptable Manufacturers: Setra and Mamac.

3. Medium to High Differential Water Pressure Applications (Over 21” w.c.)

a. The differential pressure transmitter shall meet the low pressure transmitter specifications with the following exceptions:

1) Differential pressure range 10” w.c. to 300 PSI.

2) Reference Accuracy: +1% of full span (includes non-linearity, hysteresis, and repeatability).

b. Standalone pressure transmitters shall be mounted in a bypass valve assembly panel. The panel shall be constructed to NEMA 1 standards. The transmitter shall be installed in the panel with high and low connections piped and valved. Air bleed units, bypass valves, and compression fittings shall be provided.

c. Acceptable Manufacturers: Setra and Mamac.

4. Building Differential Air Pressure Applications (-1” to +1” w.c.)

a. The differential pressure transmitter shall be of industrial quality and transmit a linear, 4 to 20 mA output in response to variation of differential pressure or air pressure sensing points.

b. The differential pressure transmitter shall have non-interactive zero and span adjustments that are adjustable from the outside cover and meet the following performance specifications:

1) -1.00 to +1.00 w.c. input differential pressure ranges. (Select range appropriate for system application)

2) 4-20 mA output.

3) Maintain accuracy up to 20 to 1 ratio turndown.

4) Reference Accuracy: +0.2% of full span.

c. Acceptable Manufacturers: Setra and Mamac.

5. Low Differential Air Pressure Applications (0” to 2.5” w.c.)

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a. The differential pressure transmitter shall be of industrial quality and transmit a linear, 4 to 20 mA output in response to variation of differential pressure or air pressure sensing points.

b. The differential pressure transmitter shall have non-interactive zero and span adjustments that are adjustable from the outside cover and meet the following performance specifications:

1) (0.00 - 1.00” to 5.00”) w.c. input differential pressure ranges. (Select range appropriate for system application.)

2) 4-20 mA, 0-5 VDC, 0-10 VDC, output.

3) Maintain accuracy up to 20 to 1 ratio turndown.

4) Reference Accuracy: +0.25%, or 0.5% of full span.

c. Acceptable Manufacturers: Setra, Mamac and Ruskin.

6. Medium Differential Air Pressure Applications (5” to 21” w.c.)

a. The pressure transmitter shall be similar to the Low Air Pressure Transmitter, except that the performance specifications are not as severe. Differential pressure transmitters shall be provided that meet the following performance requirements:

1) Zero & span: (c/o F.S./Deg. F): .04% including linearity, hysteresis and repeatability.

2) Accuracy: 1% F.S. (best straight line) Static Pressure Effect: 0.5% F.S. (to 100 PSIG.

3) Thermal Effects: <+.033 F.S./Deg. F. over 40°F. to 100°F. (calibrated at 70°F.).

b. Standalone pressure transmitters shall be mounted in a bypass valve assembly panel. The panel shall be constructed to NEMA 1 standards. The transmitter shall be installed in the panel with high and low connections piped and valved. Air bleed units, bypass valves, and compression fittings shall be provided.

c. Acceptable manufacturers: Setra, Mamac and Ruskin.

F. Smoke Detectors

1. Ionization type air duct detectors shall be furnished as specified elsewhere in Division 16 for installation under Division 15. All wiring for air duct detectors shall be provided under Division 16, Fire Alarm System.

G. Status and Safety Switches

1. General Requirements

a. Switches shall be provided to monitor equipment status, safety conditions, and generate alarms at the BMS when a failure or abnormal condition occurs. Safety switches shall be provided with two sets of contacts and shall be interlock wired to shut down respective equipment.

2. Current Sensing Switches

a. The current sensing switch shall be self-powered with solid-state circuitry and a dry contact output. It shall consist of a current transformer, a solid state current sensing circuit, adjustable trip point, solid state switch, SPDT relay, and an LED indicating the on or off status. A conductor of the load shall be passed through the window of the device. It shall accept over-current up to twice its trip point range.

b. Current sensing switches shall be used for run status for fans, pumps, and other miscellaneous motor loads.

c. Current sensing switches shall be calibrated to show a positive run status only when the motor is operating under load. A motor running with a broken belt or coupling shall indicate a negative run status.

d. Acceptable manufacturers: Johnson Controls

3. Air Filter Status Switches

a. Differential pressure switches used to monitor air filter status shall be of the automatic reset type with SPDT contacts rated for 2 amps at 120VAC.

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b. A complete installation kit shall be provided, including: static pressure tops, tubing, fittings, and air filters.

c. Provide appropriate scale range and differential adjustment for intended service.

d. Acceptable manufacturers: Johnson Controls, Cleveland Controls

4. Air Flow Switches

a. Differential pressure flow switches shall be bellows actuated mercury switches or snap acting micro-switches with appropriate scale range and differential adjustment for intended service.

b. Acceptable manufacturers: Johnson Controls, Cleveland Controls

5. Air Pressure Safety Switches

a. Air pressure safety switches shall be of the manual reset type with SPDT contacts rated for 2 amps at 120VAC.

b. Pressure range shall be adjustable with appropriate scale range and differential adjustment for intended service.

c. Acceptable manufacturers: Johnson Controls, Cleveland Controls

6. Water Flow Switches

a. Water flow switches shall be equal to the Johnson Controls P74.

7. Low Temperature Limit Switches

a. The low temperature limit switch shall be of the manual reset type with Double Pole/Single Throw snap acting contacts rated for 16 amps at 120VAC.

b. The sensing element shall be a minimum of 15 feet in length and shall react to the coldest 18-inch section. Element shall be mounted horizontally across duct in accordance with manufacturers recommended installation procedures.

c. For large duct areas where the sensing element does not provide full coverage of the air stream, additional switches shall be provided as required to provide full protection of the air stream.

d. The low temperature limit switch shall be equal to Johnson Controls A70.

H. Control Relays

1. Control Pilot Relays

a. Control pilot relays shall be of a modular plug-in design with retaining springs or clips.

b. Mounting Bases shall be snap-mount.

c. DPDT, 3PDT, or 4PDT relays shall be provided, as appropriate for application.

d. Contacts shall be rated for 10 amps at 120VAC.

e. Relays shall have an integral indicator light and check button.

f. Acceptable manufacturers: Johnson Controls, Lectro

2. Lighting Control Relays

a. Lighting control relays shall be latching with integral status contacts.

b. Contacts shall be rated for 20 amps at 277 VAC.

c. The coil shall be a split low-voltage coil that moves the line voltage contact armature to the ON or OFF latched position.

d. Lighting control relays shall be controlled by:

1) Pulsed Tri-state Output – Preferred method.

2) Pulsed Paired Binary Outputs.

3) A Binary Input to the Facility Management System shall monitor integral status contacts on the lighting control relay. Relay status contacts shall be of the “dry-contact” type.

e. The relay shall be designed so that power outages do not result in a change-of-state, and so that multiple same state commands will simply maintain the commanded state. Example:

Multiple OFF command pulses shall simply keep the contacts in the OFF position.

I. Electronic Signal Isolation Transducers

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1. A signal isolation transducer shall be provided whenever an analog output signal from the BMS is to be connected to an external control system as an input (such as a chiller control panel), or is to receive as an input signal from a remote system.

2. The signal isolation transducer shall provide ground plane isolation between systems.

3. Signals shall provide optical isolation between systems.

4. Acceptable manufacturers: Advanced Control Technologies

J.…