SECTION CONTROLS AND INSTRUMENTATION PART 1 - GENERAL 1.01 RELATED DOCUMENTS

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1 SECTION CONTROLS AND INSTRUMENTATION PART 1 - GENERAL 1.01 RELATED DOCUMENTS A. Drawings and general provisions of Contract including General and Supplementary Conditions, Division 1 Specification Sections, Mechanical General Requirements Section 15050, and Electrical General Provisions apply to work of this Section WORK INCLUDED A. Provide a Building Control System (BCS) incorporating Direct Digital Control (DDC), energy management, and equipment monitoring and control, consisting of the following elements: 1. Microcomputer based Plant Control Processors (PCPs) interfacing directly with sensors, actuators and environmental delivery systems (i.e., HVAC units, chillers, lighting systems, etc.). 2. Electric controls, and mechanical devices for all items indicated on drawings and described hereinafter, including valves, HVAC units, lighting, etc. 3. Microcomputer based Terminal Equipment Controllers (TECs) interfacing with sensors, actuators, and terminal equipment control devices. 4. Digital input to dry contact to fire alarm control panel. 5. Control low voltage wiring. B. Submittals, data entry, electrical installation, programming, start up, test and validation, instruction of Owner's representative on maintenance and operation, as-built documentation, and system warranty WORK BY OTHERS A. Access doors and setting in place of valves, flow meters, water pressure and differential taps, flow switches, thermal wells, air flow stations,current transformers, dampers, combination fire/smoke dampers and smoke detectors.

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3 1.04 QUALITY ASSURANCE A. The Contractor shall have a local office within 100-miles of the job-site, staffed with trained engineers capable of providing instruction and maintenance service on system components. A 5-year experience record in the design and installation of building systems similar in performance to this Project or as required by the Owner. Be prepared to provide evidence of this history as condition of acceptance and approval prior to bidding. B. Bids by Wholesalers, Contractors, Franchised Dealers, or any firm whose principal business is not that of manufacturing and installing automatic temperature control systems will not be acceptable. C. The system shall be installed by competent mechanics, regularly employed by the BCS manufacturer, with full responsibility for proper operation of the BCS, including debugging and calibration of each component in the system. D. All system components are to be designed and built to be fault tolerant SUBMITTALS 1. Provide satisfactory operation without damage at 110% above, and 85% below rated voltage, and at +3 hertz variation in line frequency. 2. Provide static, transient, and short circuit protection on all inputs and outputs. Communication lines shall be protected against incorrect wiring, static transients, and induced magnetic interference. Bus connected devices shall be a.c. coupled or equivalent, so that any single device failure will not disrupt or halt bus communication. A. Submit in accordance with Division 1 and the following instructions: B. Mark each submittal to clearly indicate the intended use for each product, material, or procedure. Mark each item submitted for identification with the applicable page and paragraph number of the Specification and/or the detail and sheet number of the Contract Drawings. C. Provide data sheets and shop drawings, each in bound form with index and descriptions. Provide data sheets with dividers and tabs referenced to the index/and submittal control log number.

4 D. Provide a 2-part submittal consisting of: 1. First Part: a. Manufacturer's data sheets describing control valves, thermostats temperature sensors, mechanical installation materials, and electrical installation materials submittal within 30-days following award of Contract. Indicate on each page of each data sheet which piece of equipment or material is intended for use on this Project. Highlight, in yellow, xerographic reproduction; red marks or arrow stamps are unacceptable. 2. Second Part: a. System drawings in ISA format indicating airflow for air handling systems and flow diagrams for wet systems. Show instrument locations, mechanical and electrical equipment. b. Control panel layouts drawn to scale clearly indicating device locations, terminal blocks, plastic wire ducts, plastic tubing ducts, usable spare space, name tags, and their legends. Provide a Bill of Material with complete model numbers and descriptions. c. Elementary electrical schematic wiring drawings for motor control of chillers, cooling towers, pumps, fan coil and air handling units, hot water circulators, outdoor lighting, other fan and devices as indicated on the drawings. d. Point-to-point wiring diagram in block format showing actual device terminations. e. Detailed sequence of operation for each control system. f. Drawing minimum character height is 1/8" prior to halfsize reduction. g. Complete data sheets on each control component. Include terminations, power requirements, installation instructions, dimensions, and operating descriptions. Tag these sheets to match tag items in drawing Bill of Material.

5 h. Clearly indicate on each page of each data sheet which piece of equipment or material is to be provided under this Contract. Supplier markings shall be highlighted in yellow; red marks or arrow stamps are unacceptable. i. Contractor/supplier letters will not be considered or acted on in lieu of manufacturer's printed information and/or instructions. E. Where control circuits are involved with packages mechanical or electrical equipment, indicate actual terminal connections at the control panel for each piece of equipment on control shop drawings. Reproduce packaged equipment supplier furnished schematic diagrams on control shop drawings to integrate system controls with equipment controls. Verify data included is for the exact model furnished on this Project. (Some examples of package equipment are chillers, rooftop HVAC units, and evaporative coolers.) F. List analog values of all control devices. Show engineering units. G. Indicate the following on each shop drawing: 1. Original drawing date. 2. Show any change made after the original date within a "cloud" or "balloon" with a delta symbol. The delta symbol shall also appear in the revision block adjacent to the revision date, and contain the same number corresponding to its revision. H. Provide submittals meeting project criteria within 90 working days following award of Contract. Do not provide any personnel at the job-site prior to all submittals being reviewed by the architect. I. Provide color coordinated temperature sensor cover for each space. Submit physical sample or color chart for each different colored cover for review by the Architect. Submit a list of spaces where used. J. Call deviations of the Drawings or submittal data, from the express intent of this Document, to the attention of the Owner in writing. Explain reasons for such deviations in full, and address, coordinate, and assume any additional costs for such deviations without additional cost to Owner.

6 K. In checking Drawings and submittal date, the reviewer makes every effort to detect errors and omissions. Failure of the reviewer to detect errors or omissions during the review if Drawings and submittal data shall not relieve the vendor of his responsibility to comply with the Contract Documents FINAL PROJECT SUBMITTALS A. Upon completion of Project, prior to acceptance of the system by Owner, submit the following supplemental items: 1. Detailed report of check-out and calibration of the entire automatic control system. List control set points, tuning constants, and calibrating ranges on shop drawings. 2. Provide a shop drawing submittal prior to final acceptance, showing all revisions incorporated during the Project. Provide Final Recorded Documents in accordance with Division 1 with all delta symbols, clouds, and reference to same removed. 3. Provide two (2) sets of reduced (11" x 17") blackline shop and schematic drawings to the owner. In the event system changes occur during the warranty period, revise original record document drawings to reflect the changes and submit to owner. prices. 4. Provide a complete spare parts list with part numbers and current 5. Provide a 1-year service agreement quotation for consideration by Owner. Indicate rates for labor and materials. If accepted, the agreement becomes effective upon the expiration date of contract warranty. 6. Provide manufacturer's installation and calibration instructions for each piece of equipment. 7. Provide four (4) copies of operation and maintenance manuals. a. Operators Manual shall be provided with graphic explanations of keyboard use for all operator functions specified under Operation Training. b. Computerized printouts of all PCP data file construction, including all point processing assignments, terminal relationships, scales and offsets, command and alarm limits, program flow charts, etc.

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8 1.07 SCOPE OF WORK 8. Prior to acceptance of the BCS System, provide the Owner with a "Letter of Certification" insuring that the total system is installed in a manner meeting all governing fire codes. A. Provide a complete operating system consisting of: 1. Control of the following equipment: a. Gas Furnace/DX Units The Contractor shall furnish and install all necessary hardware and all operating and applications software necessary to perform the control sequences of operation as called for in this specification. All software required shall be turned over to the Owner ready for use including all operating parameters, set points, and schedules. 2. Operator Instruction. 3. Control system wiring between control panels and equipment or devices to be controlled. 4. On site work station and software. 5. Electrical work installation practices and devices in accordance with Division SINGLE-SOURCE RESPONSIBILITY A. Provide a fully integrated system. B. Provide hardware, sensors and controls, wiring, piping, engineering, installation, supervision, labor, calibration, and commissioning for a complete and fully operational system TRAINING A. Provide competent instructors to instruct designated personnel in adjustment, operation, and maintenance, including safety requirements, of equipment and system specified.

9 B. All training shall be by the BCS Contractor and shall utilize specified manuals and as-built documentation. C. Operator training shall include two (2) eight-hour sessions encompassing: 1.10 WORK PROGRESS -- Sequence of Operation review -- Selection of all displays and reports -- Use of Portable Operators Terminals -- Troubleshooting of sensors (determining bad sensors). -- Password assignment and modification One training session shall be conducted at project completion, and the other shall be conducted forty-five days after project completion. A. Submit a monthly progress report to the Owner's representative. Relate progress reports to a Project manpower loading analysis, starting dates the work is planned for completion, and the number of calendar days actual job progress varies from the original plan. Coordinate format with Project schedule format ACCEPTANCE PROCEDURE A. Test and adjust all equipment to perform as specified and give satisfactory operation. Coordinate the testing of components installed under this Division with the testing requirements of Section WARRANTY A. Warranty components, parts, and assemblies against defects in material and workmanship for a period of 1-year after written acceptance by Owner. Warranty commences at time of acceptance. Partial acceptance of any system will not be provided. B. Provide for complete service of the control system. Make two (2) complete inspections of 8-hours duration. Submit written reports to the Owner. C. Do not reference warranty on Drawings or equipment manuals provided by BCS Contractor.

10 PARTS 2 AND 3 - PRODUCTS AND EXECUTION 2.01 ACCEPTABLE MANUFACTURERS A. Andover Controls by ATT Integrated Technologies. B. Control Engineering, Inc. C. Direct Digital Control D. Staefa 2.02 SYSTEM REQUIREMENTS A. Control Systems: Consist of temperature sensors, thermostats, relative humidity sensor, photocell, control valves, operators, indicating devices, interface equipment, and related apparatus to operate the mechanical systems. B. Basic Design: Provide basic control circuit design to allow safe system shutdown upon control device failure, interruption of electrical, or its reduction below safe operating levels. Energize control devices and circuits to operate systems, and de-energize control devices and circuits to stop system operation, unless otherwise indicated on the drawings. C. Components: Provide materials, coordination, and field work to connect and interface BCS components supplied by others as a part of an "equipment package." D. System Capability: Proportional and integral unless specified to the contrary. E. System Type: The interpretation of terminology used in Project Drawings and Specifications shall be in accordance with the latest edition of the ASHRAE Guide and ISA Standards. F. Powerline Protection Devices: Provide to insure protection against transients, electrical noise interference, voltage swings, and distorted sine wave power on all sensitive control devices provided under this Contract. G. Materials and Equipment: Provide standard products of a reputable manufacturer regularly engaged in the production of same. Where more than 1 unit of an item is required, all shall be provided by the same manufacturer. Permanently affix manufacturer's nameplate indicating model number, serial number, and performance data to equipment

11 furnished under this Contract. Use manufacturer's latest model. H. Protection: Deliver material and equipment to site in manufacturer's original, unopened, and labeled containers. Provide protective measures to allow on-site storage exposed to the weather, without damage to the equipment. I. Codes and Standards: 1. Materials, equipment design, supports and testing shall comply with local, county, state and national codes. 2. Comply with the applicable Standards/Codes of AMCA, ANSI, ARI, ASHRAE, ASME, ASTM, EIA, FCC, FM, NBS, NEMA, NFPA, OSHA, SAMA, UBC, UMC, UFC, AND UL, as adopted by the authority having jurisdiction. 3. The complete BCS installation shall be in strict accordance to the national and local electrical codes and the electrical section of these specifications. All devices designed for or used in line voltage applications shall be UL Listed. a. All microprocessor based devices shall be UL 916 listed. b. All electrical environmental control and monitoring devices shall be UL 429 and/or UL 873 Listed. 4. All electronic equipment shall conform to the requirements of FCC regulation Class B Part 15, Section 15 governing radio frequency electromagnetic interference and be so labeled. J. Diagrams: Predicated upon Project magnitude, Construction Documents may include flow diagrams and point lists as a part of the working Drawings. Flow diagrams and point lists are not for the purpose of giving physical dimension, locations or quantities, but rather to make clear the interconnections by systems, of the various units of the process. If an item is shown on either the flow diagrams, drawings, point list, or in the specification, but not on all, it will be assumed that the contractor has included such item in his estimate of the cost of the work, and that he shall provide same COORDINATION A. Provide coordination to assure that the BCS system, as installed, is totally compatible with devices provided by others. Provide additional devices, where required, to assure complete compatibility at no additional cost to the Owner.

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13 2.04 OPERATION BY OWNER A. Owner may require operation of part of the system prior to final acceptance. Operation is not to be construed as acceptance of work SYSTEMS OPERATION A. Provide indications and alarms as shown on the Drawings. B. Power Outage, Power Restoration: Upon loss of normal power, restart equipment and devices in accordance with the emergency power restart schedule or normal power restart schedule as applies CONTROL DEVICES A. System Requirements: 1. Programmable thermostats. 2. Provide all wiring, materials and methods. 3. Provide items manufacturers listed. Do not substitute. 4. Review other Specification Sections to avoid duplication of instrumentation and work scope. B. Wiring Methods: 1. Install no more than two (2) wires under a single screw or pressure terminal. 2. Provide same physical conductor with the same tag identification throughout the circuit. wire. system. 3. Tag panel terminal strip with the same number as the attached 4. Provide shop drawings to reflect this method and numbering 5. Provide 5% spare wires in all conduit runs, but not less than one (1) spare wire.

14 6. All line voltage wiring, all wiring exposed, and all wiring in equipment rooms shall be installed in conduit in accordance to the electrical specifications. 7. All electronic wiring shall be #18 AWG minimum THHN and shielded if required. 8. All wiring in the central control room shall be concealed in an approved manner. 9. Where the space above the ceiling is a supply or return air plenum, the wiring shall be plenum rated. Teflon wiring can be run without conduit above suspended ceilings. C. Power Wiring 1. All BCS equipment power shall be the responsibility of the Division 16 Electrical Contractor. 2. It is the responsibility of the Contractor to coordinate with the Division 16 Electrical Contractor on the final locations to which BAS equipment power is wired. 3. The power shall be obtained from dedicated circuits on the nearest available 120V panel and clearly labeled. Power for any BAS equipment that is controlling equipment that operates under emergency power shall be obtained from emergency power panels. 4. All power wiring for the BCS equipment shall be done with a dedicated earth ground by means of wire media only, originating at the power service source earth ground. This applies to all Level 1 and Level 2 controllers along with workstations and the file server. D. Programmable Electric Thermostats 1. Electric thermostats shall be line voltage or low voltage type suitable for the application. Low voltage type heating thermostats shall have adjustable heat anticipation.

15 PART 3 - EXECUTION 3.01 GENERAL A. The Control System shall be designed, installed, and commissioned in a turnkey fully implemented, and operational manner; including all labor not noted in Work by Others paragraph of PART I of this section of these specifications, and not noted in other sections of these specifications DATA POINT REQUIREMENTS A. Provide fully implemented application and custom software and controls necessary to accomplish the control sequences as specified. B. Computer input and output points shall be provided where specified, shown, or required to accomplish the requirements of the Sequence of Operation. C. Unless otherwise specified or approved prior to bidding, the primary analog input and the analog output of each DDC loop shall be resident in a single panel containing the DDC algorithm, and shall function independent of any peer or communication links. Secondary (reset type) analog inputs may be received from the peer network, but approved default values and/or procedures shall be substituted in the DDC algorithm for this secondary input, if network communications fail, or if the secondary input becomes erroneous or invalid INSTALLATION A. All wiring shall be properly supported and run in a neat and workmanlike manner. B. The BCS Contractor shall be responsible for all electrical installation required for a fully functional control system. All wiring shall be in accordance to all local and national codes. C. The BCS Contractor shall enter all computer programs and data files into the related computers, including all control programs, initial approved parameters and settings, and English descriptors. D. The BCS Contractor shall maintain diskette copies of all data file and application software for reload use in the event of a system crash or memory failure. One (1) copy shall be delivered to the Owner during training session, and one (1) copy shall be archived in the BCS Contractor's local software vault.

16 3.04 VALIDATION A. The BCS Contractor shall completely check out, calibrate, and test all connected hardware and software to insure that the system performs in accordance with the approved specifications and sequences of operations submitted. B. Witnessed validation demonstration shall consist of: -- Display and demonstrate each type of data entry to show site specific customizing capability. Demonstrate parameter changes. -- Execute digital and analog commands. -- Demonstrate DDC loop precision and stability via trend logs of inputs and outputs. -- Demonstrate EMS performance via trend logs and command trace SEQUENCE OF OPERATIONS A. Start/Stop a. Operators Manual shall be provided with graphic explanations of keyboard use for all operator functions specified under Operator Training. b. Computerized printouts of all PCP data file construction including all point processing assignments, terminal relationships, scales and offsets, command and alarm limits, program flowcharts, etc. Provide software to start and stop equipment based upon the time of day and day of the week. Each equipment start/stop shall be coordinated to prevent multiple concurrent equipment start-ups either during routine scheduled control or upon BCS start-up subsequent to an electrical power outage.

17 Where space temperature sensors with override switches have been specified, the program shall respond to an occupant's "off-hour" use of the override by re-activating scheduled occupied temperature control of the associated HVAC system and required ancillary systems (i.e., chillers, pumps, etc.). The re-activation shall be sustained for a operator definable time period (initially 1 hour). Occupant use of the override during normally scheduled (or reactivated) time periods shall be ignored by the program. C. Temperature Override (Night Setback) Temperature override control shall be provided to enable or activate HVAC operation during non-scheduled hours of each system specified. The program shall permit an operator to define either or both a heating and cooling setpoint for each override control specified, a minimum on time limit for override operation, a minimum off time limit following an override operation and the ability to enable/disable space temperature information for override control from specific spaces of system with multiple space temperature points. D. Economizer System Operation Outdoor dry bulb temperature and relative humidity shall be monitored. When the operator selects economizer system operation, the chiller shall stop. Motorized valves shall position to direct CHW and CW flows through the respective load and source sides of the plate and frame heat exchanger (HX-1). The CW pump shall start and the cooling tower fans shall cycle to maintain 45 F condenser water temperature. The chilled water pump shall circulate CHW on the load side of the heat exchange. E. Hydronic Economizer Control The hydronic economizer shall be used whenever chilled water can be produced at the currently required chilled water supply temperature. The economizer control algorithm shall determine if the economizer can produce the current required chilled water temperature based on current drybulb and relative humidity conditions and economizer performance data. If the economizer cannot produce the required chilled water temperature, it shall remain off. Once the economizer is on, it shall remain on until such time that it cannot produce the chilled water temperature required.

18 To start the economizer, the program shall first shutdown any operating chiller(s) associated chilled and condenser water pumps and close the chiller's condenser water isolation valve(s). The cooling tower control program shall then be overridden. The cooling tower fans shall not be controlled to maintain a condenser temperature at an operator defined amount less the current CHWS setpoint (initial 10 F less) as determined by the chilled water supply during economizer operation shall be 40 F (initially). Then the condenser water isolation valves shall be positioned for economizer operation and the condenser pump(s) assigned to hydronic economizer operation shall be started. The program shall then start the assigned chilled water pump(s) and open the hydronic economizer's CHW isolation valve. To turn off the economizer, the program shall shutdown the chilled water pump, cooling tower and condenser pump. The condenser water isolation valves shall then be repositioned for non-economizer operation and the cooling tower control parameters shall be returned to their normal operating states. If chiller(s) are subsequently required, they can then be started as specified within the chiller system control program. F. Mechanical Room Exhaust Fan The time clock function shall activate this fan. The refrigerant detection system shall override the schedule and start the fan in the event a high refrigerant level is detected. Provide start/stop switch control of all exhaust fans. G. Furnace Coil Units/DX Units Units shall be started/stopped from BCS air handling system programmed schedule. When room temperature drops below heating night setback or cooling set up temperature, the units shall be cycled to maintain temperature. Setpoints shall be adjustable from workstations, but not locally. Space temperatures shall be monitored by a wall mounted temperature sensor provided by controls contractor. The exhaust fans unit shall be interlocked where indicated on drawings.

19 DX Cooling Coil Unit Control HVAC unit and DX fan coil/condensing units shall be started/stopped from BCS system programmed schedule. Wall mounted temperature sensors (provided by controls contractor) shall cause units to operate in cooling mode and heating mode (for AC-1 only) based on required space temperatures of 75 F and 70 F respectively. When space temperature drops below heating night setback (for AC-1 only) or cooling set up temperature, the unit heating system shall be cycled to maintain the space temperature. Setpoints shall be adjustable from workstations, but not locally. Units shall be interlocked with exhaust fans. H. General and Restroom Exhaust Fans These will not controlled by the BCS unless noted below. Provide all wiring and controls interfacing required for fully operational split system cooling components integrating with gas furnace controls. **END OF SECTION**