North Hanover Township School District North Hanover Township, New Jersey

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1 SECTION INSTRUMENTATION AND CONTROL FOR HVAC PART 1 - GENERAL 1.1 SUMMARY A. Intent of this specification is to design, supply, install, commission and service a complete and operating Facility Management System (FMS), utilizing Direct Digital Controls as shown on the drawings and as described herein. This shall include HVAC control, utilities monitoring and control, alarm monitoring and control, and all trending, reporting and maintenance management functions related to normal building operations all as indicated on the drawings or elsewhere in this specification. B. The FMS Contractor shall furnish all labor, material, equipment, software or any other services not specifically referred to herein or on the plans, those are required to meet the functional intent of this specification, shall be provided without additional cost to the Owner. C. The intent of this specification is to expand the existing district wide Honeywell Enterprise Building Integrator (EBI) software package to accommodate controls required for and specified for this project. Provide all required new hardware and software upgrades to the latest edition for BACnet integration to the existing Honeywell EBI platform. Controls contractor shall provide a complete BACnet control system up to and including connectivity to the North Hanover district wide Honeywell building automation system/network. Provide all required software including point database expansion, point mapping and graphic programming to integrate new system into EBI platform shall be provided under this contract. Upgrade system as required to assure all front-end software is at the current version/revision. D. See Mechanical Drawings M600 Series "Sequence of Operations" for requirements that relate to this Section. 1.2 SUBMITTALS A. Product Data: For each control device indicated. B. Shop Drawings: Schematic flow diagrams. Power, signal, and control wiring diagrams. Details of control panel faces. Damper schedule. Valve schedule. DDC System Hardware: Wiring diagrams, schematic floor plans, and schematic control diagrams. Control System Software: Schematic diagrams, written descriptions, and points list. Contractor s own written description for each sequence of operations, to include the following: a. Sequences shall reference input/output and software parameters by name and description. b. The sequences of operations provided in the submittal by the BMS Contractor shall represent the detailed analysis needed to create actual programming code from the design documents. INSTRUMENTATION AND CONTROL FOR HVAC

2 c. Points shall be referenced by name, including all software points such as programmable setpoints, range limits, time delays, and so forth. d. The sequence of operations shall cover normal operation and operation under the various alarm conditions applicable to that system. e. Control Valve Schedules. This spreadsheet type schedule shall include a separate line for each valve and a column for each of the valve attributes, including: Code Number, Configuration, Fail Position, Pipe Size, Valve Size, Body Configuration, Close off Pressure, Capacity, Valve CV, Calculated CV, Design Pressure, Actual Pressure, and Actuator Type. f. Catalogued cut sheets of all equipment used. This includes, but is not limited to, the following: DDC panels, peripherals, sensors, actuators, dampers, control air system components, and so forth. g. Hardware data sheets for all operator workstations, DDC controllers, DDC panels, DDC panel mounted operator interface terminals, sensors, valves & actuators and other field devices. C. Software and firmware operational documentation. D. Field quality-control test reports. E. Operation and maintenance data. 1.3 QUALITY ASSURANCE A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use. B. The Building Management System contractor shall have a full service facility within 25 miles of the project that is staffed with engineers trained in Integrating Interoperable Systems and technicians fully capable of providing instructions and routine emergency maintenance service on all system components. C. The BAS system shall be designed and installed, commissioned and serviced by factory trained personnel. BMS contractor shall have an in-place support facility with technical staff, spare parts inventory and necessary test and diagnostic equipment. The BMS contractor shall provide full time, on site, experienced project manager for this work, responsible for direct supervision of the design, installation, start up and commissioning of the BMS. The Bidder shall be regularly engaged in the installation and maintenance of BMS systems and shall have a minimum of ten (10) years of demonstrated technical expertise and experience in the installation and maintenance of BMS systems similar in size and complexity to this project. D. The BMS contractor shall maintain a service organization consisting of factory trained service personnel and provide a list of ten (10) projects, similar in size and scope to this project, completed within the last five years. E. Materials and equipment shall be the catalogued products of manufacturers regularly engaged in production and installation of automatic temperature control systems and shall be manufacturer's latest standard design that complies with the specification requirements. 1.4 Definitions INSTRUMENTATION AND CONTROL FOR HVAC

3 B. Analog: A continuously variable system or value not having discrete levels. Typically exists within a defined range of limiting values. C. Binary: A two-state system where an ON condition is represented by one discrete signal level and an OFF condition is represented by a second discrete signal level. D. Building Management System (BMS): The total integrated system of fully operational and functional elements, including equipment, software, programming, and associated materials, to be provided by this Division BMS Contractor and to be interfaced to the associated work of other related trades. E. BMS Contractor: The single Contractor to provide the work of this Division. This Contractor shall be the primary manufacturer, installer, commissioner and ongoing service provider for the BMS work. F. Control Sequence: An BMS pre-programmed arrangement of software algorithms, logical computation, target values and limits as required to attain the defined operational control objectives. G. Direct Digital Control: The digital algorithms and pre-defined arrangements included in the BMS software to provide direct closed-loop control for the designated equipment and controlled variables. Inclusive of Proportional, Derivative and Integral control algorithms together with target values, limits, logical functions, arithmetic functions, constant values, timing considerations and the like. H. BMS Network: The total digital on-line real-time interconnected configuration of BMS digital processing units, workstations, panels, sub-panels, controllers, devices and associated elements individually known as network nodes. May exist as one or more fully interfaced and integrated sub-networks, LAN, WAN or the like. I. Node: A digitally programmable entity existing on the BMS network. J. BMS Integration: The complete functional and operational interconnection and interfacing of all BMS work elements and nodes in compliance with all applicable codes, standards and ordinances so as to provide a single coherent BMS as required by this Division. K. Provide: The term Provide and its derivatives when used in this Division shall mean to furnish, install in place, connect, calibrate, test, commission, warrant, document and supply the associated required services ready for operation. L. PC: IBM-compatible Personal Computer from a recognized major manufacturer M. Furnish: The term Furnish and its derivatives when used in this Division shall mean supply at the BMS Contractor s cost to the designated third party trade contractor for installation. BMS Contractor shall connect furnished items to the BMS, calibrate, test, commission, warrant and document. N. Wiring: The term Wiring and its derivatives when used in this Division shall mean provide the BMS wiring and terminations. O. Install: The term Install and its derivatives when used in this Division shall mean receive at the jobsite and mount. P. Protocol: The term protocol and its derivatives when used in this Division shall mean a defined set of rules and standards governing the on-line exchange of data between BMS network nodes. Q. Software: The term software and its derivatives when used in this Division shall mean all of programmed digital processor software, preprogrammed firmware and project specific digital process programming and database entries and definitions as generally understood in the BMS industry for real-time, on-line, integrated BMS configurations. R. The use of words in the singular in these Division documents shall not be considered as limiting when other indications in these documents denote that more than one such item is being referenced. S. Headings, paragraph numbers, titles, shading, bolding, underscores, clouds and other symbolic interpretation aids included in the Division documents are for general information only and are to assist in the reading and interpretation of these Documents. T. The following abbreviations and acronyms may be used in describing the work of this Division: ADC - Analog to Digital Converter AI - Analog Input INSTRUMENTATION AND CONTROL FOR HVAC

4 AN - Application Node ANSI - American National Standards Institute AO - Analog Output ASCII - American Standard Code for Information Interchange ASHRAE American Society of Heating, Refrigeration and Air Conditioning Engineers AWG - American Wire Gauge CPU - Central Processing Unit CRT - Cathode Ray Tube DAC - Digital to Analog Converter DDC - Direct Digital Control DI - Digital Input DO - Digital Output EEPROM - Electronically Erasable Programmable Read Only Memory EMI - Electromagnetic Interference FAS - Fire Alarm Detection and Annunciation System GUI - Graphical User Interface HOA - Hand-Off-Auto ID - Identification IEEE - Institute of Electrical and Electronics Engineers I/O - Input/Output LAN - Local Area Network LCD - Liquid Crystal Display LED - Light Emitting Diode MCC - Motor Control Center NC - Normally Closed NIC - Not In Contract NO - Normally Open OWS - Operator Workstation OAT - Outdoor Air Temperature PC - Personal Computer RAM - Random Access Memory RF - Radio Frequency RFI - Radio Frequency Interference RH - Relative Humidity ROM - Read Only Memory RTD - Resistance Temperature Device SPDT - Single Pole Double Throw SPST - Single Pole Single Throw XVGA - Extended Video Graphics Adapter TBA - To Be Advised TCP/IP - Transmission Control Protocol/Internet Protocol TTD - Thermistor Temperature Device UPS - Uninterruptible Power Supply VAC - Volts, Alternating Current VAV - Variable Air Volume VDC - Volts, Direct Current WAN - Wide Area Network 1.5 Project Narrative and Scope of Work INSTRUMENTATION AND CONTROL FOR HVAC

5 A. The ATC Contractor will provide new DDC Controls as indicated in this specification section. B. The entire Facility Management System (FMS) shall be comprised of a network of interoperable, standalone digital controllers communicating on an open protocol communication network to the existing Honeywell Enterprise Building Integrator host server within the North Hanover district. The FMS shall communicate to third party systems such as chillers, boilers, air handling systems, energy metering systems, other energy management systems, access control systems, fire-life safety systems and other building management related devices with open, interoperable communication capabilities. C. The basic controls system also includes all sensors, controllers, instruments, valves, actuators, devices, installation and service for a complete and functional controls system. All control devices (valves, dampers, actuators, etc.) are included under the contract unless specifically specified elsewhere in D. The Installed system shall provide secure password access to all features, functions and data within the overall FMS in a defined hierarchy. E. The Building Management System (BMS) shall be a complete system designed for use with the enterprise IT systems. This functionality shall extend into the equipment rooms. Devices residing on the automation network located in equipment rooms and similar shall be fully IT compatible devices that mount and communicate directly on the IT infrastructure in the facility. Contractor shall be responsible for coordination with the owner s IT staff to ensure that the BMS will perform in the owner s environment without disruption to any of the other activities taking place on that LAN. F. No wireless devices or controllers are acceptable for this project. G. The BMS work shall consist of the provision of all labor, materials, tools, equipment, software, software licenses, software configurations and database entries, interfaces, wiring, tubing, installation, labeling, engineering, calibration, documentation, samples, submittals, testing, commissioning, training services, permits and licenses, transportation, shipping, handling, administration, supervision, management, insurance, temporary protection, cleaning, cutting and patching, warranties, services, and items, even though these may not be specifically mentioned in these Division documents which are required for the complete, fully functional and commissioned BMS. H. Provide a complete, neat and workmanlike installation. Use only manufacturer employees who are skilled, experienced, trained, and familiar with the specific equipment, software, standards and configurations to be provided for this Project. I. The BMS as provided shall incorporate, at minimum, the following integrated features, functions and services: 1. Operator information, alarm management and control functions. 2. Enterprise-level information and control access. 3. Information management including monitoring, transmission, archiving, retrieval, and reporting functions. 4. Diagnostic monitoring and reporting of BMS functions. 5. Offsite monitoring and management access. 6. Energy management. 7. Standard applications for terminal HVAC systems. 1.7 INSTALLATION OF PRODUCTS FURNISHED BUT NOT INSTALLED UNDER THIS SECTION. A. Hydronic Piping The following Piping Accessories may be provided by the BMS Contractor as required by the plans and these specifications but shall be installed by the Hydronic Piping Contractor. 1. Control Valves. 2. Flow Switches. INSTRUMENTATION AND CONTROL FOR HVAC

6 3. Temperature Sensor Wells and Sockets. 4. Flowmeters. 5. Pressure Sensors B. Ductwork Accessories - The following Ductwork Accessories may be provided by the BMS Contractor as required by the plans and these specifications but shall be installed by the Sheetmetal or Mechanical Contractor. 1. Automatic Dampers. 1.8 RECORD DOCUMENTATION A. Operation and Maintenance Manuals 1. Three (3) copies of the Operation and Maintenance Manuals shall be provided to the Owner's Representative upon completion of the project. The entire Operation and Maintenance Manual shall be furnished on Compact Disc media, and include the following for the BMS provided: 1.9 WARRANTY A. Table of contents. B. As-built system record drawings. Computer Aided Drawings (CAD) record drawings shall represent the as-built condition of the system and incorporate all information supplied with the approved submittal. C. Manufacturers product data sheets or catalog pages for all products including software. D. System Operator s manuals. E. Archive copy of all site-specific databases and sequences. F. BMS network diagrams. G. Interfaces to all third-party products and work by other trades. The Operation and Maintenance Manual CD shall be self-contained, and include all necessary software required to access the product data sheets. A logically organized table of contents shall provide dynamic links to view and print all product data sheets. Viewer software shall provide the ability to display, zoom, and search all documents. A. Standard Material and Labor Warranty: Provide a one-year labor and material warranty on the BMS. 1. If within twelve (12) months from the date of acceptance of product, upon written notice from the owner, it is found to be defective in operation, workmanship or materials, it shall be replaced, repaired or adjusted at the option of the BMS Contractor at the cost of the BMS Contractor. 2. Maintain an adequate supply of materials within 25 miles of the Project site such that replacement of key parts and labor support, including programming. Warranty work shall be done during BMS Contractor s normal business hours. PART 2 - PRODUCTS 2.1 MANUFACTURERS INSTRUMENTATION AND CONTROL FOR HVAC

7 A. Manufacturers: Subject to compliance with requirements, provide products by one of the following manufacturers: 1. Base Bid: Honeywell Building Automation Controls by Honeywell New Jersey District Branch Honeywell BMS. Contact: Louis Speziale ( ) 2. Alternate Bid Only: Invensys Building Systems I/A Series by CM3 Building Solutions, Inc. (Alternate Bid Only as noted in Form of Proposal and contract documents and drawings) 3. Alternate Bid Only: Johnson Controls NAE Metasys System by Johnson Controls Branch Plymouth Meeting PA. (Alternate Bids as noted in Form of Proposal and contract documents and drawings) 4. Alternate Bid Only: Approved equal manufacturer (List Manufacturer Name and Product, provide documentation from Manufacturer that the product meets all specification requirements). 2.2 SYSTEM DESCRIPTION A. The entire Facility Management System (FMS) shall be comprised of a network of interoperable, standalone digital controllers communicating on an open protocol communication network to the existing Honeywell Enterprise Building Integrator host server within the North Hanover district. The FMS shall communicate to third party systems such as chillers, boilers, air handling systems, energy metering systems, and other building management related devices with open, interoperable communication capabilities. B. The basic controls system also includes all sensors, controllers, instruments, valves, actuators, devices, installation and service for a complete and functional controls system. All control devices (valves, dampers, actuators, etc.) are included under the contract unless specifically specified elsewhere in. C. The Installed system shall provide secure password access to all features, functions and data within the overall FMS in a defined hierarchy. D. UPS (uninterruptible power supply) shall be installed at the server. Size for 50% spare capacity with sufficient capacity to allow emergency power for a minimum of 10 minutes backup OPEN, INTEROPERABLE, INTEGRATED ARCHITECTURES a) The intent of this specification is to provide an Open System solution that utilizes industry standard communications protocols consisting of peer-to-peer networked, stand-alone, distributed controls in compliance with ANSI/ASHRAE Standard /2004 BACnet communication protocol in one open, interoperable system. Open System communication protocols shall be utilized Top-to-Bottom from front-end Graphical User Interface (GUI) to the field level distributed controllers. Proprietary communications, objects, or communication Tiers are not acceptable allowing highest level of interoperability between control devices and systems. b) The existing Honeywell Enterprise Building Integrator software shall employ object-oriented technology (OOT) for representation of all data and control devices within the system. In addition, adherence to industry standards including ANSI / ASHRAE Standard /2004 BACnet to assure interoperability between all system components is required. For all native BACnet device, the device supplier must provide a PICS document showing the installed device s compliance level, or BIBB s listing supported objects, properties, and services. All na- INSTRUMENTATION AND CONTROL FOR HVAC

8 2.2. NETWORKS tive BACnet Controllers should confirm to BIBB s profile for B-BC, B-ASC, B-AAC as applicable with the ability to support minimum data read and write functionality listed in the associated control drawings and points list.. Physical connection of BACnet devices shall be via Ethernet utilizing BACnet over IP without the need for additional hardware viz. routers and / or gateways. c) All network controllers supplied under this contract shall be true peer-to-peer communicating devices. Plant controllers requiring polling by a host to pass data shall not be acceptable. d) A hierarchical topology is required to assure reasonable system response times and to manage the flow and sharing of data without unduly burdening the customer s internal Intranet network. Systems employing a flat single tiered architecture shall not be acceptable. a) The Local Area Network (LAN) shall be either a 10 or 100 Megabits/sec Ethernet network supporting BACnet, Java, XML, HTTP, and CORBA IIOP for maximum flexibility for integration of building data with enterprise information systems and providing support for multiple Network Area Controllers (NACs), user workstations and, a local host computer system. b) Local area network minimum physical and media access requirements: 1. Ethernet; IEEE standard Cable; 10 Base-T, UTP-8 wire, category 5 3. Minimum throughput; 10 Mbps, with ability to increase to 100 Mbps 2.3. NETWORK CONTROLLER (NC) a) The Network Controller (NC) shall be a Native BACnet controller based on 32 bit technology to provide the interface between the LAN or WAN and the field control devices, and provide global supervisory control functions over the control devices connected to the NC. The NC shall conform to BACnet Building Controller (B-BC) profile and be provided with appropriate PIC statement defining BACnet services and objects supported. BACnet Data Sharing BIBBs supported shall include at a minimum: RP, RPM, WP, WPM, COV. Alarm and Event, Trending, and scheduling including SCHED-A BIBBs support shall also be supported in BACnet native communications. The NC shall physically connect to the LAN without the need for additional Router hardware. The NC shall support transmitting and receiving segmented messages as well as BACnet Broadcast Messages over IP. It should be possible to define any NC in an IP subnet as a BBMD device. The NC shall also support both Secure ( and non secure ( remote web server access using commonly used web browsers. It shall be capable of executing application control programs to provide: 1. Calendar functions 2. Scheduling 3. Trending and Trending Backfill 4. Alarm monitoring and routing 5. Time synchronization 6. Integration of BACnet devices and BACnet controller data 7. Integration of MODBUS devices and MODBUS controller data b) The Network Controller must provide the following hardware features as a minimum: INSTRUMENTATION AND CONTROL FOR HVAC

9 c) Integration 1. One Ethernet Port -10 / 100 Mbps RJ45 2. One RS-232 port 3. One RS 485 port 4. Three independent BACnet MS/TP Channel capable of supporting up to 90 Unitary controllers 5. A minimum of 24 On-board I/O, expandable up to 128 hardware points 6. Battery Backup using Gold Capacitor to avoid low battery alarms and subsequent replacement during service life of the controller. 7. Flash memory for long term data backup (If battery backup or flash memory is not supplied, the controller must contain a hard disk with at least 1 gigabyte storage capacity) 8. A Reset Button 9. The NC must be capable of operation over a temperature range of 0 to 50 C 10. The NC must be capable of withstanding storage temperatures of between 5 and 70 C 11. The NC must be capable of operation over a humidity range of 5 to 93% RH, noncondensing 1. Any or all the 3 independent MS/TP channels may be used to integrate MODBUS devices like Energy Meters etc. or BACnet devices and BACnet controller data. The FMS contractor shall include if any, license required for this interface within their scope. d) Event Alarm Notification and actions 1. The NC shall provide alarm recognition, storage; routing, management, and analysis to supplement distributed capabilities of equipment or application specific controllers. 2. Alarm generation shall be selectable for annunciation type and acknowledgement requirements including but limited to: a. To alarm b. Return to normal c. To fault 3. Provide for the creation of an unlimited number of alarm classes for the purpose of routing types and or classes of alarms based on priority 4. Provide timed (schedule) routing of alarms by class, object, group, or priority. 5. Provide alarm generation from binary object runtime and /or event counts for equipment maintenance. The user shall be able to reset runtime or event count values with appropriate password control. d) Control equipment and network failures shall be treated as alarms and annunciated. e) A log of alarms shall be maintained by the NC f) Provide a query feature to allow review of specific alarms by user defined parameters. INSTRUMENTATION AND CONTROL FOR HVAC

10 g) A separate log for system alerts (controller failures, network failures, etc.) shall be provided and available for review by the user. h) An Error Log to record invalid property changes or commands shall be provided and available for review by the user Native BACnet Application Specific Controller (B-ASC) 1. Controller shall be 32 bit microprocessor based BACnet Application Specific Controller in accordance with the ANSI/ASHRAE Standard Application Specific Controller shall be provided for Air Handling Units, Variable Air Volume (VAV) Terminals and other applications as shown on the drawings. The application control program shall be resident within the same enclosure as the input/output circuitry, which translates the sensor signals. The FMS Contractor must provide a PICS document showing the installed systems compliance level to the ANSI/ASHRAE Standard All Application Specific Controller shall be fully programmable as per application with the help of Windows based software programming tool. Controllers offering application selection only (non-programmable), require a 15% spare point capacity to be provided for all applications. All control sequences within or programmed into the B-ASC shall be stored in non-volatile memory, which is not dependent upon the presence of a battery, to be retained. 3. Stand-alone, Native BACnet, UL Listed Application Controllers shall be used to provide direct digital control of HVAC equipment. In addition to their standalone capabilities, they shall also provide the ability networked in a peer-to-peer, BACnet MS/TP field network to other controllers, or as part of a complete facilities management system which integrates multiple field networks. These controllers may be used to optimize the energy consumption by implementing various control strategies such as temperature setup/setback etc. 4. Standard features for all Application Specific Controllers shall include: a. 32 bit microprocessor based controllers b. Stand-alone or networked peer-to-peer capabilities as MS/TP, Masters to slave devices are not acceptable c. Should have on-board Real Time Clock d. Should support BACnet intrinsic alarm reporting e. Should support BACnet B-ASC profile and BTL f. BACnet MS/TP LAN with configurable baud rate from 9600 to 76.8k baud g. All Inputs to be Universal Inputs with 12 bit resolution- software selectable as analog or digital with standard and custom ranges. h. Pulse counting shall be available for any one of binary inputs up to 15Hz frequency i. All Outputs to be Universal Outputs with 8 bit resolution - software selectable for analog or digital with standard and custom ranges j. Maximum 90 objects INSTRUMENTATION AND CONTROL FOR HVAC

11 k. Standard P, PI, or PID BACnet Loop Objects. l. Minimum of 1 Loop Object for each output. m. In the particular case of Programmable VAV Controllers (VAV), the following shall apply in addition to the standard features listed above: a. Standard VAV control sequences are incorporated to provide pressure independent control of a single duct VAV unit b. Each VAV Controller shall be without actuator to provide flexibility to choose suitable modulating or floating actuator based on the application. For example VAV box controller used in the laboratory should use the modulating actuator and the VAV box controller used in office area should use the floating actuator. c. Each controller shall have an onboard flow-thru sensor for use with a single or multipoint differential pressure measuring station or pitot tube. Programmable controller to allow customizing of the standard sequences for temperature setback, overrides, proportional wet reheat and other user defined sequences to adapt to changing building conditions. The ability to only change operating parameters or substitute between configurable applications shall not be considered acceptable d. Should be easily programmable using Microsoft Windows based programming utility. e. The VAV controller shall communicate with the main network controller at a baud rate of not less than 38.4K baud. The VAV controller shall provide LED indication of communication and controller performance to the technician, without cover removal. n. In the particular case of Programmable Small Point Controllers (SPC), the following shall apply in addition to the standard features listed above: a. Standard FCU control sequences are incorporated to provide control of Fan Coil Unit b. Programmable control basic to allow customizing of the standard sequences for temperature setback, overrides, proportional wet reheat and other user defined sequences to adapt to changing building conditions. The ability to only change operating parameters or substitute between configurable applications shall not be considered acceptable c. Should be easily programmable using Microsoft Windows based programming utility. d. The SPC shall communicate with the main network controller at a baud rate of not less than 38.4K baud. The SPC shall provide LED indication of communication and controller performance to the technician, without cover removal Native BACnet Advanced Application Specific Controller (B-AAC) 1. Controller shall be 32 bit microprocessor based BACnet Advanced Application Controller in accordance with the ANSI/ASHRAE Standard The application control program shall be resident within the same enclosure as the input/output circuitry, which translates the sensor signals. The system supplier must provide a PICS document showing the installed systems compliance level to the ANSI/ASHRAE Standard INSTRUMENTATION AND CONTROL FOR HVAC

12 2. All Advanced Application Controller shall be fully programmable with the help of Windows based software programming tool and shall at all times maintain their BACnet compliance. Controllers offering application selection only (non-programmable), require a 15% spare point capacity to be provided for all applications. All control sequences within or programmed into the B-AAC shall be stored in non-volatile memory, which is not dependent upon the presence of a battery, to be retained. 3. Stand-alone, Native BACnet, UL Listed Application Controllers shall be used to provide direct digital control of HVAC equipment. In addition to their standalone capabilities, they shall also provide the ability networked in a peer-to-peer, BACnet MS/TP field network to other MS/TP controllers, and VAV/SPC zone controllers on the single MS/TP channel. These controllers may be used to optimize the energy consumption by implementing various control strategies such as temperature setup/setback etc. 4. Standard features for all Advanced Application Controllers shall include: a. 32 bit microprocessor based controllers b. Stand-alone or networked peer-to-peer capabilities on single MS/TP channel, Masters to slave devices are not acceptable c. Should have on-board Real Time Clock d. Should support BACnet intrinsic alarm reporting e. Should support calendar objects for scheduling f. Should comply to BACnet B-AAC device profile g. Flexibility to be used and connected to Network Controller to expand the I/O capacity of network controller h. BACnet MS/TP LAN with configurable baud rate from 9600 to 76.8k baud i. All Inputs to be Universal Inputs with 12 bit resolution- software selectable as analog or digital with standard and custom ranges. j. Pulse counting shall be available for any one of binary inputs up to 15Hz frequency k. Standard P, PI, or PID BACnet Loop Objects l. Minimum of one Loop Object for each output 2.6. PACKAGING AND ENVIRONMENT 1. Distributed unitary controller enclosures (panels) shall be locking type, metal cabinet, with common keying. The panels shall have a metal print pocket suitable for storing wiring, service and log information. Indoor panels shall be NEMA 1 enclosures with gaskets. Any panels in cooling tower or chemically treated areas shall be stainless steel (Fiberglass enclosures rated for outside applications are acceptable). VAV box controllers shall have a safety cover but no enclosure is required. INSTRUMENTATION AND CONTROL FOR HVAC

13 2. The panel, when required, must functionally operate over a temperature range of 0 to 50, and a humidity range of 0-93% non-condensing. 3. DDC panels shall come with a minimum of six pre-existing available knockouts for ease of wiring during installation. 4. The electrical requirements shall be identified and coordinated by the Controls Contractor. Any 230 VAC requirements are to be coordinated with controls/electrical Contractor. The controls/electrical Contractor shall provide 230 VAC power circuits to each panel. 230 VAC power should not be installed in the same panel as 24 VAC. However, if 230 VAC power must be installed in the same panel with 24 VAC power due to design and/or system constraints, the 230 VAC side of the panel shall be physically isolated from the 24VAC side and clearly labeled. Use panduits in each control panel to conceal all wiring. Fuse all transformers. 5. Control panels shall be clearly identified by labels (2 lettering). 6. Provide and install as-built wiring diagrams to indicate the control points on all equipment. Also provide laminated point lists in all control panels GRAPHICAL USER INTERFACE SOFTWARE Operating System: The GUI shall run on Microsoft Windows 7 Pro or Microsoft Windows 2011 Server. Server Computer The system server computer shall comprise of the following minimum hardware: Intel Xeon Quad Core Processor 24GB of RAM Graphics card capable of 1280x1024 pixel resolution and 65K colors 12 function-key keyboard Mouse pointing device 1 TB Hard disk drive with RAID 6 hot-swappable drives DVD ROM read/write drive TCP/IP adaptor UL Listed server computer platform shall be used when UL compliant system is required SERVER FUNCTIONS AND HARDWARE Operator Workstation The system shall be capable of supporting up to 80 simultaneous Operator Workstation connections using a TCP/IP Local Area Network (LAN). The Network connection must allow a limitless number of casual users access to the 80 connections on a first-come-first-served basis. The Operator Workstation shall comprise the following minimum hardware: Intel Core i7 Processor 16GB of RAM Graphics card capable of 1280x1024 pixel resolution and 65K colors A 1 TB Hard disk drive A 12 function-key keyboard A mouse pointing device INSTRUMENTATION AND CONTROL FOR HVAC

14 TCP/IP adaptor 2.9. SYSTEM PROGRAMMING 1. The Graphical User Interface software (GUI) shall provide the ability to perform system programming and graphic display engineering as part of a complete software package. Access to the programming functions and features of the GUI shall be through password access as assigned by the system administrator. 2. A library of control, application, and graphic objects shall be provided to enable the creation of all applications and user interface screens. Applications are to be created by selecting the desired control objects from the library, dragging or pasting them on the screen, and linking them together using a built in graphical connection tool. Completed applications may be stored in the library for future use. Graphical User Interface screens shall be created in the same fashion. E. AAC Room Sensor The AAC Sensor shall provide room temperature value and humidity to the controller. Each AAC shall support a minimum of two sensors. The AAC Sensor shall connect directly to the controller and shall not utilize any of the I/O points of the controller. The AAC Sensor shall provide a two-wire connection to the controller that is polarity and wire type insensitive. The AAC Sensor shall be provided in a modular configuration that allows for the rough in of all wiring without the presence of the electronics or esthetic covering. The AAC Sensor shall allow for the customization of the color on the esthetic covering as a standard offering. The AAC Sensor shall be supplied in the following manner: a. LCD display for showing (typically) the current temperature. b. Tenant override to allow timed override of unoccupied to occupied mode of operation. c. LED indication of override state d. Up/Down keys to allow adjustment of the current setpoint e. User interface with the AAC Sensor shall be provided as a configurable function, and shall offer password protection for access to network variable editing. f. ASHRAE 95 compliance (LCD display and sub-base functionality) g. The room sensor shall provide access to additional diagnostic data from a sensor-user keypad request. This Diagnostic mode is displayed on the LCD screens and includes separate displays for the controllers: 1) Subnet and Node Address 2) Errors 3) Alarms 4) Temperature Offset 2.2 SENSORS A. Electronic Temperature Sensors: Vibration and corrosion resistant; for wall, immersion, or duct mounting as required. Resistance Temperature Detectors: Platinum, thermistor, or Balco a. Accuracy: Plus or minus 0.2 percent at calibration point; thermistors shall have a maximum 5 year drift of no more than.225 F maximum error of no more than.36 F b. Wire: Twisted, shielded-pair cable INSTRUMENTATION AND CONTROL FOR HVAC

15 c. Insertion Elements in Ducts: Single point, 6 inches long; use where not affected by temperature stratification or where ducts are smaller than 4 sq. ft. d. Averaging Elements in Ducts: 60 inches, long, flexible for use where prone to temperature stratification or where ducts are larger than 4 sq. ft.; 264 inches long, flexible for use where prone to temperature stratification or where ducts are larger than 16 sq. ft; length as required. e. Insertion Elements for Liquids: Brass socket with minimum insertion length of 2-1/2 inches. f. Outside-Air Sensors: Watertight inlet fitting, shielded from direct sunlight. g. Room Security Sensors: Stainless steel cover plate with insulated back and security screws. Pressure Transmitters: Direct acting for gas, liquid, or steam service; range suitable for system; proportional output 4 to 20 ma. B. Equipment operation sensors as follows: Status Inputs for Pumps: Differential-pressure switch piped across pump with adjustable pressuredifferential range of 8 to 60 psig. Status Inputs for Electric Motors: Current-sensing relay with current transformers, adjustable and set to 175 percent of rated motor current. C. Electronic Valve/Damper Position Indication: Visual scale indicating percent of travel and 2- to 10-V dc, feedback signal. D. Water-Flow Switches: Pressure-flow switches of bellows actuated mercury or snap-acting type, with appropriate scale range and differential adjustment, with stainless steel or bronze paddle. For chilled water applications, provide vapor proof type. E. Carbon-Dioxide Sensor and Transmitter: Single detectors, using solid-state infrared sensors, suitable over a temperature range of 23 F to 130 F, calibrated for 0 to 2 percent, with continuous or averaged reading, 4 to 20 ma output, and wall mounted. 2.3 THERMOSTATS A. Combination Thermostat and Fan Switches: Line-voltage thermostat with two-, three-, or four-position, push-button or lever-operated fan switch. Label switches "FAN ON-OFF," "FAN HIGH-LOW-OFF," "FAN HIGH-MED-LOW-OFF." Provide unit for mounting on two-gang switch box. B. Low-Voltage, On-Off Thermostats: NEMA DC 3, 24-V, bimetal-operated, mercury-switch type, with adjustable or fixed anticipation heater. C. Remote-Bulb Thermostats: On-off or modulating type, liquid filled to compensate for changes in ambient temperature, with copper capillary and bulb, unless otherwise indicated. Bulbs in water lines with separate wells of same material as bulb. Bulbs in air ducts with flanges and shields. Averaging Elements: Copper tubing with either single- or multiple-unit elements, extended to cover full width of duct or unit, adequately supported. Scale settings and differential settings are clearly visible and adjustable from front of instrument. On-Off Thermostat: With precision snap switches, with electrical ratings required by application. Modulating Thermostats: Construct so complete potentiometer coil and wiper assembly is removable for inspection or replacement without disturbing calibration of instrument. INSTRUMENTATION AND CONTROL FOR HVAC

16 D. Room Thermostat Cover Construction: Set-Point Adjustment: Concealed or exposed Set-Point Indication: Concealed or exposed Thermometer: Optional Color: Neutral Orientation: Vertical or horizontal E. Room thermostat accessories include the following: Insulating Bases: For thermostats located on exterior walls. Thermostat Guards: For gymnatorium and multipurpose room and in tamper prone areas Adjusting Key: As required for calibration and cover screws. Set-Point Adjustment: 1/2-inch diameter, adjustment knob. Electric Low-Limit Duct Thermostat: Snap-acting, single-pole, single-throw, manual- or automatic-reset switch that trips if temperature sensed across any 12 inches of bulb length is equal to or below set point. Bulb Length: Minimum 20 feet Quantity: One thermostat for every 20 sq. ft. of coil surface. F. Electric High-Limit Duct Thermostat: Snap-acting, single-pole, single-throw, manual- or automatic-reset switch that trips if temperature sensed across any 12 inches of bulb length is equal to or above set point. Bulb Length: Minimum 20 feet. Quantity: One thermostat for every 20 sq. ft. of coil surface. 2.4 ACTUATORS A. Electric Motors: Size to operate with sufficient reserve power to provide smooth modulating action or two-position action under all environmental conditions (temperature, low power voltage fluctuations, tight seal damper design, maximum air and water flow forces). Permanent Split-Capacitor or Shaded-Pole Type: Gear trains completely oil immersed and sealed. Equip spring-return motors with integral spiral-spring mechanism in housings designed for easy removal for service or adjustment of limit switches, auxiliary switches, or feedback potentiometer. Nonspring-Return Motors for Valves Larger Than NPS 2-1/2 : Size for running torque of 150 in. x lbf and breakaway torque of 300 in. x lbf. Spring-Return Motors for Valves Larger Than NPS 2-1/2 : Size for running and breakaway torque of 150 in. x lbf. Nonspring-Return Motors for Dampers Larger Than 25 Sq. Ft.: Size for running torque of 150 in. x lbf and breakaway torque of 300 in. x lbf. Spring-Return Motors for Dampers Larger Than 25 Sq. Ft.: Size for running and breakaway torque of 150 in. x lbf. B. Electronic Damper and Valve Actuators: Direct-coupled type non hydraulic designed for minimum 100,000 full-stroke cycles at rated torque. The actuator shall have rating of not less than twice the thrust needed for actual operation of the damper or valve Coupling: V-bolt and V-shaped, toothed cradle. Overload Protection: Electronic overload or digital rotation-sensing circuitry. Fail-Safe Operation: Mechanical, spring-return mechanism. Provide external, manual gear release on non-spring-return actuators. Actuators shall have the ability to be tandem mounted. All spring-return actuators shall have a manual override. Complete manual override shall take no more than 10 turns. Power Requirements (Two-Position Spring Return): 24V ac or dc, Maximum 10VA. Power Requirements (Modulating): Maximum 15 VA at 24V ac. INSTRUMENTATION AND CONTROL FOR HVAC

17 Proportional Signal: 2- to 10-V dc or 4 to 20 ma, and 2- to 10-V dc position feedback signal. Temperature Rating: -22 F to 140ºF. Run Time: 200 seconds open, 40 seconds closed. All actuators shall have a 5 year warranty Valves: a. Size for torque required for valve close-off at maximum pump differential pressure (regardless of water loop system pressures). b. Valve and Actuators shall come from the factory fully assembled. c. Spring Return Manual Override shall come with a 10 Degree Valve Preload to assure tight close off. Dampers: a. Size for running torque calculated as follows: 1) Parallel-Blade Damper with Edge Seals: 7 inch-pounds/sq. ft. of damper. 2) Opposed-Blade Damper with Edge Seals: 5 inch-pounds/sq. ft. of damper. 3) Parallel-Blade Damper without Edge Seals: 4 inch-pounds/sq. ft. damper. 4) Opposed-Blade Damper without Edge Seals: 3 inch-pounds/sq. ft. of damper. 5) Dampers with 2 to 3 Inches wg. of Pressure Drop or Face Velocities of 1000 to 2500 FPM Multiply the minimum full-stroke cycles above by ) Dampers with 3 to 4 Inches wg. of Pressure Drop or Face Velocities of 2500 to 3000 FPM Multiply the minimum full-stroke cycles above by 2.0. b. Spring Return Manual Override actuators shall a factory set 5 Degree Damper Preload. 2.5 CONTROL VALVES A. Control Valves: Factory fabricated, of type, body material, and pressure class based on maximum pressure and temperature rating of piping system, unless otherwise indicated. B. Globe Valves NPS 2 and Smaller: Bronze body, bronze trim, rising stem, renewable composition disc, and screwed ends with backseating capacity repackable under pressure. Valves shall have allowable media temperature of 20 F to 281 F to assure that the valve packing will have a long life (valves will narrower allowable media temperatures have no reserve packing capability for long term watertight seal). C. Globe Valves NPS 2-1/2 and Larger: Iron body, bronze trim, rising stem, plug-type disc, flanged ends, and renewable seat and disc. D. Hydronic system globe valves shall have the following characteristics: Rating: Class 125 for service at 125 psig. and 250 F operating conditions. Internal Construction: Replaceable plugs and seats of stainless steel or brass. a. Single-Seated Valves: Cage trim provides seating and guiding surfaces for plug on top and bottom of guided plugs. b. Double-Seated Valves: Balanced plug; cage trim provides seating and guiding surfaces for plugs on top and bottom of guided plugs. Sizing: 3 psig. maximum pressure drop at design flow rate. Flow Characteristics: Two-way valves shall have equal percentage characteristics; three-way valves shall have linear characteristics. Operators shall close valves against pump shutoff head. E. Control Ball Valves 3 inches and smaller (2 inches for 3-way valves): Forged brass body (CuZn39Pb2), chrome plated brass ball and blowout proof stem and EPDM o-rings with minimum 600 psi rating. Valve shall contain glasss filled ball insert capable of providing equal percentage flow. Valves shall have allowable media temperature of 20 Deg F to 250 Deg F. Rating: Minimum 100 psi close off on 2 way valves and 70 psi on 3 way valves. Medium: Valves sahll be used with hot water or cold water with up to 50% glycol. INSTRUMENTATION AND CONTROL FOR HVAC

18 Sizing: a. Minimum 100 psi close off on 2 way valves and 70 psi on three way valves b. Maximum differential shall be 35 psi to ensure quiet operation. Flow Characteristics: 2 way vales shall have equal percentage characteristics. 3 way valves shall have an equal percentage characteristic through the control port and a linear characteristic through the bypass port. F. Butterfly Valves: 200 psig. maximum pressure differential, ASTM A 126 cast-iron or ASTM A 536 ductile-iron body and bonnet, extended neck, stainless-steel stem, field-replaceable EPDM or Buna N sleeve and stem seals. Body Style: Wafer, Lug, or Groove Disc Type: Nickel-plated ductile iron, Aluminum bronze, Elastomer-coated ductile iron, Epoxycoated ductile iron. Sizing: 1 psig. maximum pressure drop at design flow rate. G. Terminal Unit Control Valves: 360 psi forged yellow brass body, nickel plated brass ball, with optimizer insert for modulating applications, blow-out resistant stem, two or three-port as indicated, and threaded ends for chilled or hot water, up to 50% glycol solutions. Actuators shall be as noted above with 5 year warranty. Spring return is required for all Unit Ventilator heating valves and other terminal equipment that has an outside air source. All non-spring return valves must have manual override ability built in to the actuator. Rating: ANSI class IV, maximum static pressure of 250 psig., minimum fluid temperature of 20ºF and maximum of 250ºF operating conditions. Sizing: 4 psig. maximum pressure drop at design flow rate, to close against pump shutoff head. Flow Characteristics: Two-way and three-valves shall have equal percentage characteristics. 2.6 DAMPERS A. Dampers: AMCA-rated, parallel, opposed blade designs; inch minimum, galvanized-steel frames with holes for duct mounting; damper blades shall not be less than inch galvanized steel with maximum blade width of.8 inches. Blades shall be secured to 1/2-inch diameter, zinc-plated axles using zinc-plated hardware, with nylon blade bearings, blade-linkage hardware of zinc-plated steel and brass, ends sealed against spring-stainless-steel blade bearings, and thrust bearings at each end of every blade. Operating Temperature Range: -40 F to 200 F For standard applications, include optional closed-cell neoprene edging. For low-leakage applications, use parallel- or opposed-blade design with inflatable seal blade edging, or replaceable rubber seals, rated for leakage at less than 10 cfm per sq. ft. of damper area, at differential pressure of 4 inches wg. when the damper is being held by torque of 50 in. x lbf; when tested according to AMCA 500D. 2.7 CONTROL CABLE A. Electronic and Fiber-Optic Cable for Control Wiring: As specified in Division 26 Section "Control/Signal Transmission Media." B. Communication cable shall be category 5. INSTRUMENTATION AND CONTROL FOR HVAC