SECTION COMMON MOTOR REQUIREMENTS FORHVAC EQUIPMENT

Transcription

1 SECTION COMMON MOTOR REQUIREMENTS FORHVAC EQUIPMENT PART I - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section includes general requirements for single-phase and polyphase, general-purpose, horizontal, small and medium, squirrel-cage induction motors for use on ac power systems up to 600 V and installed at equipment manufacturer's factory or shipped separately by equipment manufacturer for field installation. 1.3 COORDINATION A. Coordinate features of motors, installed units, and accessory devices to be compatible with the following: 1. Motor controllers. 2. Torque, speed, and horsepower requirements of the load. 3. Ratings and characteristics of supply circuit and required control sequence. 4. Ambient and environmental conditions of installation location. PART 2- PRODUCTS 2.1 GENERAL MOTOR REQUIREMENTS A. Comply with NEMA MG 1 unless otherwise indicated. B. Comply with IEEE 841 for severe-duty motors. 2.2 MOTOR CHARACTERISTICS A. Duty: Continuous duty at ambient temperature of 40 deg C and at altitude of 3300 feet (1 000 m) above sea level. B. Capacity and Torque Characteristics: Sufficient to start, accelerate, and operate connected loads at designated speeds, at installed altitude and environment, with indicated operating sequence, and without exceeding nameplate ratings or considering service factor. COMMON MOTOR REQUIREMENTS FOR HV AC EQUIPMENT Hl

2 2.3 POLYPHASE MOTORS A. Description: NEMA MG 1, Design B, medium induction motor. B. Efficiency: Energy efficient, as defined in NEMA MG 1. C. Service Factor: D. Multispeed Motors: Variable torque. 1. For motors with 2:1 speed ratio, consequent pole, single winding. 2. For motors with other than 2:1 speed ratio, separate winding for each speed. E. Multispeed Motors: Separate winding for each speed. F. Rotor: Random-wound, squirrel cage. G. Bearings: Regreasable, shielded, antifriction ball bearings suitable for radial and thrust loading. H. Temperature Rise: Match insulation rating. I. Insulation: Class F. J. Code Letter Designation: 1. Motors Smaller than 15 HP: Manufacturer's standard starting characteristic. K. Enclosure Material: Cast iron for motor frame sizes 324T and larger; rolled steel for motor frame sizes smaller than 324 T. PART 3- EXECUTION (Not Applicable) END OF SECTION COMMON MOTOR REQUIREMENTS FOR HV AC EQUIPMENT

3 SECTION TESTING, ADJUSTING, AND BALANCING FOR HV AC PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section Includes: 1. Balancing Air Systems: a. Constant-volume air systems. 1.3 DEFINITIONS A. B. c. D. E. AABC: Associated Air Balance Council. NEBB: National Environmental Balancing Bureau. TAB: Testing, adjusting, and balancing. TABB: Testing, Adjusting, and Balancing Bureau. TAB Specialist: An entity engaged to perform TAB Work. 1.4 INFORMATIONAL SUBMITTALS A. Qualification Data: Within 30 days of Contractor's Notice to Proceed, submit documentation that the TAB contractor and this Project's TAB team members meet the qualifications specified in "Quality Assurance" Article. B. Contract Documents Examination Report: Within 30 days of Contractor's Notice to Proceed, submit the Contract Documents review report as specified in Part 3. C. Strategies and Procedures Plan: Within 30 days of Contractor's Notice to Proceed, submit TAB strategies and step-by-step procedures as specified in "Preparation" Article. D. Certified TAB reports. E. Sample report forms. F. Instrument calibration reports, to include the following: TESTING, ADJUSTING, AND BALANCING FOR HVAC

4 I. Instrument type and make. 2. Serial number. 3. Application. 4. Dates of use. 5. Dates of calibration. I.5 QUALITY ASSURANCE A. TAB Contractor Qualifications: Engage a TAB entity certified by NEBB or TABB. I. TAB Field Supervisor: Employee of the TAB contractor and certified by NEBB or TABB. 2. TAB Technician: Employee of the TAB contractor and who is certified by NEBB or T ABB as a TAB technician. B. TAB Conference: Meet with Construction Manager on approval of the TAB strategies and procedures plan to develop a mutual understanding of the details. Require the participation of the TAB field supervisor and technicians. Provide seven days' advance notice of scheduled meeting time and location. I. Agenda Items: a. The Contract Documents examination report. b. The TAB plan. c. Coordination and cooperation of trades and subcontractors. d. Coordination of documentation and communication flow. C. Certify TAB field data reports and perform the following: I. Review field data reports to validate accuracy of data and to prepare certified TAB reports. 2. Certify that the TAB team complied with the approved TAB plan and the procedures specified and referenced in this Specification. D. Instrumentation Type, Quantity, Accuracy, and Calibration: As described in ASHRAE lli, Section 5, "Instrumentation." E. ASHRAE Compliance: Applicable requirements in ASHRAE 62.I, Section "Air Balancing." F. ASHRAE/IESNA Compliance: Applicable requirements in ASHRAE/IESNA 90.1, Section "System Balancing." I.6 PROJECT CONDITIONS A. Full Owner Occupancy: Owner will occupy the site and existing building during entire TAB period. Cooperate with Owner during TAB operations to minimize conflicts with Owner's operations. TESTING, ADJUSTING, AND BALANCING FOR HV AC HI

5 1.7 COORDINATION A. Notice: Provide seven days' advance notice for each test. Include scheduled test dates and times. B. Perform TAB after leakage and pressure tests on air distribution systems have been satisfactorily completed. PART 2- PRODUCTS (Not Applicable) PART 3- EXECUTION 3.1 EXAMINATION A. B. c. D. E. F. Examine the Contract Documents to become familiar with Project requirements and to discover conditions in systems' designs that may preclude proper TAB of systems and equipment. Examine systems for installed balancing devices, such as test ports, gage cocks, thermometer wells, flow-control devices, balancing valves and fittings, and manual volume dampers. Verify that locations of these balancing devices are accessible. Examine the approved submittals for HV AC systems and equipment. Examine design data including HVAC system descriptions, statements of design assumptions for environmental conditions and systems' output, and statements of philosophies and assumptions about HV AC system and equipment controls. Examine ceiling plenums and underfloor air plenums used for supply, return, or relief air to verify that they meet the leakage class of connected ducts as specified in Section "Metal Ducts" and Section "Nonmetal Ducts" and are properly separated from adjacent areas. Verify that penetrations in plenum walls are sealed and fire-stopped if required. Examine equipment performance data including fan and pump curves. 1. Relate performance data to Project conditions and requirements, including system effects that can create undesired or unpredicted conditions that cause reduced capacities in all or part of a system. 2. Calculate system-effect factors to reduce performance ratings ofhvac equipment when installed under conditions different from the conditions used to rate equipment performance. To calculate system effects for air systems, use tables and charts found in AMCA 201, "Fans and Systems," or in SMACNA's "HVAC Systems- Duct Design." Compare results with the design data and installed conditions. G. Examine system and equipment installations and verify that field quality-control testing, cleaning, and adjusting specified in individual Sections have been performed. H. Examine test reports specified in individual system and equipment Sections. I. Examine HV AC equipment and filters and verify that bearings are greased, belts are aligned and tight, and equipment with functioning controls is ready for operation. TESTING, ADJUSTING, AND BALANCING FOR HVAC

6 J. Examine terminal units, such as variable-air-volume boxes, and verify that they are accessible and their controls are connected and functioning. K. Examine strainers. VerifY that startup screens are replaced by permanent screens with indicated perforations. L. Examine three-way valves for proper installation for their intended function of diverting or mixing fluid flows. M. Examine heat-transfer coils for correct piping connections and for clean and straight fins. N. Examine system pumps to ensure absence of entrained air in the suction piping. 0. Examine operating safety interlocks and controls on HV AC equipment. P. Report deficiencies discovered before and during performance oft AB procedures. Observe and record system reactions to changes in conditions. Record default set points if different from indicated values. 3.2 PREPARATION A. Prepare at AB plan that includes strategies and step-by-step procedures. B. Complete system-readiness checks and prepare reports. Verify the following: I. Permanent electrical-power wiring is complete. 2. Automatic temperature-control systems are operational. 3. Equipment and duct access doors are securely closed. 4. Ceilings are installed in critical areas where air-pattern adjustments are required and access to balancing devices is provided. 5. Windows and doors can be closed so indicated conditions for system operations can be met. 3.3 GENERAL PROCEDURES FOR TESTING AND BALANCING A. Perform testing and balancing procedures on each system according to the procedures contained in SMACNA's "HVAC Systems -Testing, Adjusting, and Balancing" and in this Section. 1. Comply with requirements in ASHRAE 62.1, Section "Air Balancing." B. Cut insulation, ducts, pipes, and equipment cabinets for installation of test probes to the minimum extent necessary fort AB procedures. 1. After testing and balancing, patch probe holes in ducts with same material and thickness as used to construct ducts. 2. After testing and balancing, install test ports and duct access doors that comply with requirements in Section "Air Duct Accessories." 3. Install and join new insulation that matches removed materials. Restore insulation, coverings, vapor barrier, and finish according to Section "Duct Insulation," TESTING, ADJUSTING, AND BALANCING FOR HVAC

7 Section "HV AC Equipment Insulation," and Section "HVAC Piping Insulation." c. D. Mark equipment and balancing devices, including damper-control positions, valve position indicators, fan-speed-control levers, and similar controls and devices, with paint or other suitable, permanent identification material to show final settings. Take and report testing and balancing measurements in inch-pound (IP) units. 3.4 A. B. c. D. E. F. G. H. I. J. K. L. GENERAL PROCEDURES FOR BALANCING AIR SYSTEMS Prepare test reports for both fans and outlets. Obtain manufacturer's outlet factors and recommended testing procedures. Crosscheck the summation of required outlet volumes with required fan volumes. Prepare schematic diagrams of systems' "as-built" duct layouts. For variable-air-volume systems, develop a plan to simulate diversity. Determine the best locations in main and branch ducts for accurate duct-airflow measurements. Check airflow patterns from the outdoor-air louvers and dampers and the return- and exhaust-air dampers through the supply-fan discharge and mixing dampers. Locate start-stop and disconnect switches, electrical interlocks, and motor starters. Verify that motor starters are equipped with properly sized thermal protection. Check dampers for proper position to achieve desired airflow path. Check for airflow blockages. Check condensate drains for proper connections and functioning. Check for proper sealing of air-handling-unit components. Verify that air duct system is sealed as specified in Section "Metal Ducts." 3.5 A. PROCEDURES FOR CONSTANT-VOLUME AIR SYSTEMS Adjust fans to deliver total indicated airflows within the maximum allowable fan speed listed by fan manufacturer. 1. Measure total airflow. a. Where sufficient space in ducts is unavailable for Pitot-tube traverse measurements, measure airflow at terminal outlets and inlets and calculate the total airflow. 2. Measure fan static pressures as follows to determine actual static pressure: TESTING, ADJUSTING, AND BALANCING FOR HVAC Hl

8 a. Measure outlet static pressure as far downstream from the fan as practical and upstream from restrictions in ducts such as elbows and transitions. b. Measure static pressure directly at the fan outlet or through the flexible connection. c. Measure inlet static pressure of single-inlet fans in the inlet duct as near the fan as possible, upstream from the flexible connection, and downstream from duct restrictions. d. Measure inlet static pressure of double-inlet fans through the wall of the plenum that houses the fan. 3. Measure static pressure across each component that makes up an air-handling unit, rooftop unit, and other air-handling and -treating equipment. a. Report the cleanliness status of filters and the time static pressures are measured. 4. Measure static pressures entering and leaving other devices, such as sound traps, heatrecovery equipment, and air washers, under final balanced conditions. 5. Review Record Documents to determine variations in design static pressures versus actual static pressures. Calculate actual system-effect factors. Recommend adjustments to accommodate actual conditions. 6. Obtain approval from Engineer for adjustment of fan speed higher or lower than indicated speed. Comply with requirements in HVAC Sections for air-handling units for adjustment of fans, belts, and pulley sizes to achieve indicated air-handling-unit performance. 7. Do not make fan-speed adjustments that result in motor overload. Consult equipment manufacturers about fan-speed safety factors. Modulate dampers and measure fan-motor amperage to ensure that no overload will occur. Measure amperage in full-cooling, fullheating, economizer, and any other operating mode to determine the maximum required brake horsepower. B. Adjust volume dampers for main duct, submain ducts, and major branch ducts to indicated airflows within specified tolerances. 1. Measure airflow of submain and branch ducts. a. Where sufficient space in submain and branch ducts is unavailable for Pitot-tube traverse measurements, measure airflow at terminal outlets and inlets and calculate the total airflow for that zone. 2. Measure static pressure at a point downstream from the balancing damper, and adjust volume dampers until the proper static pressure is achieved. 3. Remeasure each submain and branch duct after all have been adjusted. Continue to adjust submain and branch ducts to indicated airflows within specified tolerances. C. Measure air outlets and inlets without making adjustments. 1. Measure terminal outlets using a direct-reading hood or outlet manufacturer's written instructions and calculating factors. D. Adjust air outlets and inlets for each space to indicated airflows within specified tolerances of indicated values. Make adjustments using branch volume dampers rather than extractors and the dampers at air terminals. TESTING, ADJUSTING, AND BALANCING FOR HV AC

9 1. Adjust each outlet in same room or space to within specified tolerances of indicated quantities without generating noise levels above the limitations prescribed by the Contract Documents. 2. Adjust patterns of adjustable outlets for proper distribution without drafts. 3.6 PROCEDURES FOR MOTORS A. Motors, 1/2 HP and Larger: Test at final balanced conditions and record the following data: 1. Manufacturer's name, model number, and serial number. 2. Motor horsepower rating. 3. Motor rpm. 4. Efficiency rating. 5. Nameplate and measured voltage, each phase. 6. Nameplate and measured amperage, each phase. 7. Starter thermal-protection-element rating. B. Motors Driven by Variable-Frequency Controllers: Test for proper operation at speeds varying from minimum to maximum. Test the manual bypass of the controller to prove proper operation. Record observations including name of controller manufacturer, model number, serial number, and nameplate data. 3.7 PROCEDURES FOR TESTING, ADJUSTING, AND BALANCING EXISTING SYSTEMS A. Perform a preconstruction inspection of existing equipment that is to remain and be reused. 1. Measure and record the operating speed, airflow, and static pressure of each fan. 2. Measure motor voltage and amperage. Compare the values to motor nameplate information. 3. Check bearings and other lubricated parts for proper lubrication. 4. Report on the operating condition of the equipment and the results of the measurements taken. Report deficiencies. B. Before performing testing and balancing of existing systems, inspect existing equipment that is to remain and be reused to verify that existing equipment has been cleaned and refurbished. Verify the following: 1. Fans are clean. 2. Bearings and other parts are properly lubricated. 3. Deficiencies noted in the preconstruction report are corrected. C. Perform testing and balancing of existing systems to the extent that existing systems are affected by the renovation work. 1. Compare the indicated airflow of the renovated work to the measured fan airflows, and determine the new fan speed and the face velocity of filters and coils. 2. Verify that the indicated airflows of the renovated work result in filter and coil face velocities and fan speeds that are within the acceptable limits defined by equipment manufacturer. TESTING, ADJUSTING, AND BALANCING FOR HVAC

10 3. If calculations increase or decrease the air flow rates and water flow rates by more than 5 percent, make equipment adjustments to achieve the calculated rates. If increase or decrease is 5 percent or less, equipment adjustments are not required. 4. Balance each air outlet. 3.8 TOLERANCES A. Set HVAC system's air flow rates and water flow rates within the following tolerances: 1. Supply, Return, and Exhaust Fans and Equipment with Fans: Plus or minus 10 percent. 2. Air Outlets and Inlets: Plus or minus 10 percent. 3.9 REPORTING A. B. Initial Construction-Phase Report: Based on examination of the Contract Documents as specified in "Examination" Article, prepare a report on the adequacy of design for systems' balancing devices. Recommend changes and additions to systems' balancing devices to facilitate proper performance measuring and balancing. Recommend changes and additions to HV AC systems and general construction to allow access for performance measuring and balancing devices. Status Reports: Prepare monthly progress reports to describe completed procedures, procedures in progress, and scheduled procedures. Include a list of deficiencies and problems found in systems being tested and balanced. Prepare a separate report for each system and each building floor for systems serving multiple floors FINAL REPORT A. General: Prepare a certified written report; tabulate and divide the report into separate sections for tested systems and balanced systems. 1. Include a certification sheet at the front of the report's binder, signed and sealed by the certified testing and balancing engineer. 2. Include a list of instruments used for procedures, along with proof of calibration. B. Final Report Contents: In addition to certified field-report data, include the following: 1. Fan curves. 2. Manufacturers' test data. 3. Field test reports prepared by system and equipment installers. 4. Other information relative to equipment performance; do not include Shop Drawings and product data. C. General Report Data: In addition to form titles and entries, include the following data: 1. Title page. 2. Name and address ofthe TAB contractor. 3. Project name. 4. Project location. TESTING, ADJUSTING, AND BALANCING FOR HVAC

11 5. Architect's name and address. 6. Engineer's name and address. 7. Contractor's name and address. 8. Report date. 9. Signature oft AB supervisor who certifies the report. 10. Table of Contents with the total number of pages defined for each section of the repmt. Number each page in the report. 11. Summary of contents including the following: a. Indicated versus final performance. b. Notable characteristics of systems. c. Description of system operation sequence if it varies from the Contract Documents. 12. Nomenclature sheets for each item of equipment. 13. Data for terminal units, including manufacturer's name, type, size, and fittings. 14. Notes to explain why certain final data in the body of reports vary from indicated values. 15. Test conditions for fans and pump performance forms including the following: a. Settings for outdoor-, return-, and exhaust-air dampers. b. Conditions of filters. c. Fan drive settings including settings and percentage of maximum pitch diameter. d. Settings for supply-air, static-pressure controller. e. Other system operating conditions that affect performance. D. Air-Handling-Unit Test Reports: For air-handling units with coils, include the following: 1. Unit Data: a. Unit identification. b. Location. c. Make and type. d. Model number and unit size. e. Manufacturer's serial number. f. Unit arrangement and class. g. Discharge arrangement. h. Sheave make, size in inches (mm), and bore. i. Center-to-center dimensions of sheave, and amount of adjustments in inches (mm). j. Number, make, and size ofbelts. k. Number, type, and size of filters. 2. Motor Data: a. Motor make, and frame type and size. b. Horsepower and rpm. c. Volts, phase, and hertz. d. Full-load amperage and service factor. e. Sheave make, size in inches (mm), and bore. f. Center-to-center dimensions of sheave, and amount of adjustments in inches (mm). 3. Test Data (Indicated and Actual Values): TESTING, ADJUSTING, AND BALANCING FOR HV AC

12 a. Total air flow rate in cfm (Lis). b. Total system static pressure in inches wg (Pa). c. Fan rpm. d. Discharge static pressure in inches wg (Pa). e. Filter static-pressure differential in inches wg (Pa). f. Cooling-coil static-pressure differential in inches wg (Pa). g. Heating-coil static-pressure differential in inches wg (Pa). h. Outdoor airflow in cfm (Lis). i. Return airflow in cfm (Lis). j. Outdoor-air damper position. k. Return-air damper position. E. Fan Test Reports: For supply, return, and exhaust fans, include the following: 1. Fan Data: a. System identification. b. Location. c. Make and type. d. Model number and size. e. Manufacturer's serial number. f. Arrangement and class. g. Sheave make, size in inches (mm), and bore. h. Center-to-center dimensions of sheave, and amount of adjustments in inches (mm). 2. Motor Data: a. Motor make, and frame type and size. b. Horsepower and rpm. c. Volts, phase, and hertz. d. Full-load amperage and service factor. e. Sheave make, size in inches (mm), and bore. f. Center-to-center dimensions of sheave, and amount of adjustments in inches (mm). g. Number, make, and size of belts. 3. Test Data (Indicated and Actual Values): a. Total airflow rate in cfm (Lis). b. Total system static pressure in inches wg (Pa). c. Fan rpm. d. Discharge static pressure in inches wg (Pa). e. Suction static pressure in inches wg (Pa). F. Round, Flat-Oval, and Rectangular Duct Traverse Reports: Include a diagram with a grid representing the duct cross-section and record the following: 1. Report Data: a. System and air-handling-unit number. b. Location and zone. c. Traverse air temperature in deg F ( deg C). TESTING, ADJUSTING, AND BALANCING FOR HVAC

13 d. Duct static pressure in inches wg (Pa). e. Duct size in inches (mm). f. Duct area in sq. ft. (sq. m). g. Indicated air flow rate in cfm (Lis). h. Indicated velocity in fpm (m/s). i. Actual air flow rate in cfm (Lis). j. Actual average velocity in fpm (m/s). k. Barometric pressure in psig (Pa). G. Air-Terminal-Device Reports: 1. Unit Data: a. System and air-handling unit identification. b. Location and zone. c. Apparatus used for test. d. Area served. e. Make. f. Number from system diagram. g. Type and model number. h. Size. i. Effective area in sq. ft. (sq. m). 2. Test Data (Indicated and Actual Values): a. Air flow rate in cfm (Lis). b. Air velocity in fpm (m/s). c. Preliminary air flow rate as needed in cfm (Lis). d. Preliminary velocity as needed in fpm (m/s). e. Final air flow rate in cfm (Lis). f. Final velocity in fpm (m/s). g. Space temperature in deg F ( deg C). H. Instrument Calibration Reports: 1. Report Data: a. Instrument type and make. b. Serial number. c. Application. d. Dates of use. e. Dates of calibration INSPECTIONS A. Initial Inspection: 1. After testing and balancing are complete, operate each system and randomly check measurements to verify that the system is operating according to the final test and balance readings documented in the final report. TESTING, ADJUSTING, AND BALANCING FOR HVAC

14 2. Check the following for each system: B. Final Inspection: a. Measure airflow of at least [ 10] <Insert number> percent of air outlets. b. Measure water flow of at least [5] <Insert number> percent of terminals. c. Measure room temperature at each thermostat/temperature sensor. Compare the reading to the set point. d. Verify that balancing devices are marked with final balance position. e. Note deviations from the Contract Documents in the final repmt. 1. After initial inspection is complete and documentation by random checks verifies that testing and balancing are complete and accurately documented in the final report, request that a final inspection be made by Construction Manager. 2. The TAB contractor's test and balance engineer shall conduct the inspection in the presence of Construction Manager. 3. Construction Manager shall randomly select measurements, documented in the final report, to be rechecked. Rechecking shall be limited to either 10 percent of the total measurements recorded or the extent of measurements that can be accomplished in a normal 8-hour business day. 4. If rechecks yield measurements that differ from the measurements documented in the final report by more than the tolerances allowed, the measurements shall be noted as "FAILED." 5. If the number of "FAILED" measurements is greater than 10 percent of the total measurements checked during the final inspection, the testing and balancing shall be considered incomplete and shall be rejected. C. TAB Work will be considered defective if it does not pass final inspections. If TAB Work fails, proceed as follows: 1. Recheck all measurements and make adjustments. Revise the final report and balancing device settings to include all changes; resubmit the final report and request a second final inspection. 2. If the second final inspection also fails, Owner may contract the services of another TAB contractor to complete TAB Work according to the Contract Documents and deduct the cost of the services from the original TAB contractor's final payment. D. Prepare test and inspection reports A. B. ADDITIONAL TESTS Within 90 days of completing TAB, perform additional TAB to verify that balanced conditions are being maintained throughout and to correct unusual conditions. Seasonal Periods: If initial TAB procedures were not performed during near-peak summer and winter conditions, perform additional TAB during near-peak summer and winter conditions. END OF SECTION TESTING, ADJUSTING, AND BALANCING FOR HVAC Hl

15 SECTION INSTRUMENTATION AND CONTROL FOR HVAC PART 1 - GENERAL 1.1 DESCRIPTION A. The facility currently has a Building Automation System. The scope of this project shall include the addition of the two dedicated outside air unis to the existing BAS system and the associated graphics, schedules and sequences for the units. The scope shall also include the addition of the economizer addition to all existing rooftop units. B. The scope of this project shall also include the modification of the existing graphical user interface to include pages that display the written sequence of operation for the dedicated outside air units as well as all the existing rooftop units. C. Direct Digital Control (DDC) technology shall be used to provide the functions necessary for control of mechanical systems and terminal devices on this project. D. The mechanical systems and terminal devices shall be provided with factory mounted DDC controls that will permit each system to operate in a stand-alone fashion. As such, in the event of a BAS network communication failure, or the loss of an individual controller, the other DDC controllers shall continue to independently operate and communicate to the BAS. E. The BAS Contractor shall provide all hardware and software necessary to implement the functions and sequence of operations specified. F. The BAS may re-use existing wiring but shall be fully responsible for integrity testing of the wiring and acceptance of such in an as-is condition. G. Graphic backgrounds shall be customized per requirements herein if BAS standard graphics does not meet with Owner acceptance. 1.2 ACTION SUBMITTALS A. Product Data: For each control device indicated. B. Shop Drawings: 1. Schematic flow diagrams. 2. Power, signal, and control wiring diagrams. 3. Details of control panel faces. 4. Damper schedule. 5. Valve schedule. 6. DDC System Hardware: Wiring diagrams, schematic floor plans, and schematic control diagrams. 7. Control System Software: Schematic diagrams, written descriptions, and points list INSTRUMENTATION AND CONTROL FOR HV AC Page 1 of 15

16 1.3 INFORMATIONAL SUBMITTALS A. Field quality-control test reports. 1.4 CLOSEOUT SUBMITTALS A. Operation and maintenance data. B. Software and firmware operational documentation. 1.5 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 BAS Contractor shall be the local office of a nationally recognized organization within a 70-mile radius of the job site. This office shall be staffed with a minimum of three (3) application engineers and three (3) service technicians all of whom are employees of the manufacturer and who have been trained by the manufacturer on the system proposed and bid. Bids by wholesalers, contractors and franchised dealers, or any firm whose principal business is not that of manufacturing and installing of Automatic Temperature Controls and Building Automation systems will not be acceptable. The manufacturer must be the installer and be employed by the manufacturer. The BAS Contractor shall have a ten year experience record in the design and installation of computerized building systems similar in scope and performance to that specified herein, and shall provide evidence of this history as condition of acceptance within 30 days after award of bid for review. C. BAS Contractor shall have a branch office within 50 miles. D. The building has an existing BAS, the existing BAS manufacturer is the only approved manufacturer. 1. Manufacturer a. Johnson Controls Metasys 1.6 SUBMITTALS A. Contractor shall provide shop drawings and manufacturers' standard specification data sheets on all hardware and software to be provided. No work may begin on any segment of this project until the Engineer and Owner have reviewed submittals for conformity with the plan and specifications. Six (6) copies are required. All shop drawings shall be provided to the Owner electronically as.dwg or.dxf file formats. B. Quantities of items submitted shall be reviewed by the Engineer and Owner. Such review shall not relieve the contractor from furnishing quantities required for completion INSTRUMENTATION AND CONTROL FORHVAC Page 2 of 15

17 C. Provide the Engineer and Owner, any additional information or data which is deemed necessary to determine compliance with these specifications or which is deemed valuable in documenting the system to be installed. D. Submit the following within 60 days of contract award: 1. A complete bill of materials of equipment to be used indicating quantity, manufacturer and model number. 2. Provide manufacturers cut sheets for major system components. When manufacturer's cut sheets apply to a product series rather than a specific product, the data specifically applicable to the project shall be highlighted or clearly indicated by other means. Each submitte~ piece of literature and drawings shall clearly reference the specification and/or drawing that the submittal is being submitted to cover. Include: a. Building Controllers b. Custom Application Controllers c. Application Specific Controllers d. Operator Interface Computer e. Auxiliary Control Devices f. Proposed control system riser diagram showing system configuration, device locations, addresses, and cabling. g. Detailed termination drawings showing all required field and factory terminations. Terminal numbers shall be clearly labeled. h. Points list showing all system objects and the proposed English language object names. i. Sequence of operations for each system under control. This sequence shall be specific for the use of the Control System being provided for this project. j. Provide a BACnet Product Implementation Conformance Statement (PICS) for each BACnet device type in the submittal. k. Color prints of proposed graphics with a list of points for display. E. Project Record Documents: Upon completion of installation submit three (3) copies of record (as-built) documents. The documents shall be submitted for approval prior to final completion and include: 1. Project Record Drawings - These shall be as-built versions of the submittal shop drawings. One set of electronic media including CAD.DWG or.dxf drawing files shall also be provided. 2. Testing and Commissioning Reports and Checklists. 3. Operating and Maintenance (0 & M) Manual - These shall be as built versions of the submittal product data. In addition to that required for the submittals, the 0 & M manual shall include: a. Names, address and 24-hour telephone numbers of Contractors installing equipment, and the control systems and service representative of each. b. Operators Manual with procedures of operating the control systems including logging on/off, alarm handling, producing point reports, trending data, overriding computer control, and changing set points and other variables. c. Programming Manual with a description of the programming language including syntax, statement descriptions including algorithms and calculations used, point database creation and modification, program creation and modification, and use of the editor INSTRUMENTATION AND CONTROL FOR HVAC Page 3 of 15

18 d. Engineering, Installation and Maintenance Manual(s) that explains how to design and install new points, panels, and other hardware; preventative maintenance and calibration procedures; how to debug hardware problems; and how to repair or replace hardware. e. A listing and documentation of all custom software created using the programming language including the point database. One set of magnetic media containing files of the software and database shall also be provided. f. One set of electronic media containing files of all color-graphic screens created for the project. g. A list of recommended spare parts with part numbers and supplier. h. Complete original issue documentation, installation, and maintenance information for all third party hardware provided including computer equipment and sensors. i. Complete original issue media for all software provided including operating systems, programming language, operator workstation software, and graphics software. j. Licenses, Guarantee, and Warrantee documents for all equipment and systems. k. Recommended preventive maintenance procedures for all system components including a schedule of tasks (inspection, cleaning, calibration, etc.) time between tasks, and task descriptions. F. Training Manuals: The Contractor shall provide a course outline and training manuals for all training classes at least six weeks prior to the first class. The Owner reserves the right to modify any or all of the training course outline and training materials. Review and approval by Owner and Engineer and shall be completed at least 3 weeks prior to first class WARRANTY A. Warrant all work as follows: 1. Labor & materials for control system specified shall be warranted free from defects for a period of twelve (12) months after final completion (all outstanding punch list items resolved) and acceptance by the Owner and verification of operation by TAB/Commissioning Agent. Control System failures during the warranty period shall be adjusted, repaired, or replaced at no charge or reduction in service to the Owner. The Contractor shall respond to the Owner's request for warranty service within 24 hours during customary business hours. 2. At the end of the final start-up/testing, if equipment and systems are operating satisfactorily to the Owner and Engineer, the Owner shall sign certificates certifying that the control system's operation has been tested and accepted in accordance with the terms of this specification. The date of Owner's acceptance shall be the start of warranty. 3. Operator workstation software, project specific software, graphics, database, and firmware updates shall be provided to the Owner at no charge during the warranty period. Written authorization by Owner must, however, be granted prior to the installation of such changes. 4. The system provider shall provide a web-accessible Users Network to give the Owner access to question/answer forum, graphics library, user tips, upgrades, and training schedules INSTRUMENTATION AND CONTROL FOR HV AC Page 4 of 15

19 1.8 OWNERSHIP OF PROPRIETARY MATERIAL A. All project developed hardware and software shall become the property of the Owner. These include but are not limited to: 1. Project graphic images 2. Record drawings 3. Project database 4. Job-specific application programming code 5. All documentation. PART 2: PRODUCTS 2.2 APPLICATION AND CONTROL SOFTWARE A. Furnish the following applications software for building and energy management. All software applications shall reside and run in the system controllers. Editing of applications shall occur at the operator workstation. B. System Security 1. User access shall be secured using individual security passwords and user names. 2. Passwords shall restrict the user to only the objects, applications, and system functions as assigned by the system manager. 3. User logon/logoff attempts shall be recorded. 4. The system shall protect itself from unauthorized use by automatically logging off following the last keystroke. The delay time shall be user definable. C. Scheduling. Provide the capability to schedule each object or group of objects in the system. Each of these schedules shall include the capability for start, stop, optimal start, optimal stop, and night economizer actions. Each schedule may consist of up to 1 0 events. When a group of objects are scheduled together, provide the capability to define advances and delays for each member. Each schedule shall consist of the following: 1. Weekly Schedule. Provide separate schedules for each day of the week. 2. Exception Schedules. Provide the ability for the operator to designate any day of the year as an exception schedule. This exception schedule shall override the standard schedule for that day. Exception schedules may be defined up to a year in advance. Once an exception schedule is executed it will be discarded and replaced by the standard schedule for that day of the week. 3. Holiday Schedules. Provide the capability for the operator to define up to 99 special or holiday schedules. These schedules may be placed on the scheduling calendar and will be repeated each year. The operator shall be able to define the length of each holiday period. 4. Optimal Start/Stop. The scheduling application outlined above shall support an optimal start/stop algorithm. This shall calculate the thermal characteristics of a zone and stm1 the equipment prior to occupancy to achieve the desired space temperature at the specified occupancy time. The algorithm shall calculate separate sets of heating and cooling rates for zones that have been unoccupied for less then and greater than 24 hours. Provide the ability to modify the start/stop algorithm based on outdoor air temperature INSTRUMENTATION AND CONTROL FOR HV AC Page 5 of 15

20 Provide an early start limit in minutes to prevent the system from starting before an operator determined time limit. D. Alarm Reporting. The operator shall be able to determine the action to be taken in the event of an alarm. Alarms shall be routed to the appropriate workstations based on time and other conditions. An alarm shall be able to start programs, be logged in the event log, printed, generate custom messages graphics. E. Remote Communications. The system shall have the ability to dial out in the event of an alarm. Receivers shall include PC Workstations, and alphanumeric pagers. The alarm message shall include the name of the calling location, the device that generated the alarm, and the alarm message itself. The operator shall be ably to remotely access and operate the system using dial up communications in the same format and method used on site under section 2.1 (Operator Interface). F. Maintenance Management. The system shall monitor equipment status and generate maintenance messages based upon user designated run time, starts, and/or calendar date limits. G. PID Control. A PID (proportional-integral-derivative) algorithm with direct or reverse action and anti-wind-up shall be supplied. The algorithm shall calculate a time-varying analog value used to position an output or stage a series of outputs. The controlled variable, set-point, and PID gains shall be user-selectable. The set-point shall optionally be chosen to be a reset schedule. H. Staggered Start. This application shall prevent all controlled equipment from simultaneously restarting after a power outage. The order in which equipment (or groups of equipment) is started; along with the time delay between starts shall be user-selectable. I. Anti-Short Cycling. All binary output points shall be protected from short cycling. This feature shall allow minimum on-time and off-time to be selected. 2.3 BUILDING CONTROLLERS A. General. Provide Building Controllers to provide the performance specified in section 1 of this division. Each of these panels shall meet the following requirements: 1. The Building Automation System shall be composed of one or more independent, standalone, microprocessor based Building Controllers to manage the global strategies described in System software section. 2. The Building Controller shall have sufficient memory to support its operating system, database, and programming requirements. 3. The Building Controller shall have the ability to communicate a minimum of 120 controllers. 4. The operating system of the Controller shall manage the input and output communications signals to allow distributed controllers to share real and virtual point information and allow central monitoring and alarms. 5. Controllers that perform scheduling shall have a real time clock. 6. Data shall be shared between networked Building Controllers. 7. The Building Controller shall continually check the status of its processor and memory circuits. If an abnormal operation is detected, the controller shall: INSTRUMENTATION AND CONTROL FOR HV AC Page 6 of 15

21 a. Assume a predetermined failure mode. b. Generate an alarm notification. 8. BACnet. The Building Controller shall use the Read (Initiate) and Write (Execute) Services as defined in these BIBBS: DS-RP-A,B DS-RPM-A,B DS-WP-A,B DS-WPM-B B. Communications. Each Building Controller shall reside on a BACnet inter-network using the ISO (Ethernet) ysical/data Link layer protocol. Each Building Controller shall also perform routing to a network of Custom Application and Application Specific Controllers. C. Environment. Controller hardware shall be suitable for the anticipated ambient conditions. Controller used in conditioned ambient shall be mounted in an enclosure, and shall be rated for operation at 0 C to 50 C 32 F to 120 F. D. Serviceability. Provide diagnostic LEDs for power, communications, and processor. All wiring connections shall be made to field removable, modular terminal strips or to a termination card connected by a ribbon cable. E. Memory. The Building Controller shall maintain all BIOS and programming information in the event of a power loss for at least 72 hours. F. Immunity to power and noise. Controller shall be able to operate at 90% to 110% of nominal voltage rating and shall perform an orderly shut-down below 80% nominal voltage 2.4 CUSTOM APPLICATION CONTROLLERS A. General. Provide Custom Application Controllers to provide the performance specified in section 1 of this division. Each of these panels shall meet the following requirements. 1. The Building Automation System shall be composed of one or more independent, standalone, microprocessor based Building Controllers to manage the local strategies described in System software section. 2. The Controller shall have sufficient memory to support its operating system, database, and programming requirements. 3. Controllers that perform scheduling shall have a real time clock. 4. The operating system of the Controller shall manage the input and output communications signals to allow distributed controllers to share real and virtual point information and allow central monitoring and alarms. 5. The Controller shall continually check the status of its processor and memory circuits. If an abnormal operation is detected, the controller shall: a. Assume a predetermined failure mode. b. Generate an alarm notification. B. Environment. Controller hardware shall be suitable for the anticipated ambient conditions INSTRUMENTATION AND CONTROL FOR HV AC Page 7 of 15

22 1. Controller used in conditioned ambient shall be mounted in NEMA 1 type enclosures, and shall be rated for operation at 0 C to 50 C 32 F to 120 F. 2. Controllers used outdoors and/or in wet ambient shall be mounted within NEMA 4 type waterproof enclosures, and shall be rated for operation at -40 C to 70 C -40 F to 158 F. C. Serviceability. Provide diagnostic LEDs for power, communications, and processor. All low voltage wiring connections shall be made such that the controller electronics can be removed and/or replaced without disconnection of field termination wiring. D. Memory. The Controller shall maintain all BIOS and programming information in the event of a power loss for at least 72 hours. E. Immunity to power and noise. Controller shall be able to operate at 90% to 110% of nominal voltage rating and shall perform an orderly shutdown below 80% nominal voltage. 2.5 APPLICATION SPECIFIC CONTROLLERS A. General. Application specific controllers (ASC) are microprocessor-based DDC controllers, which through hardware or firmware design are dedicated to control a specific piece of equipment. They are not fully user programmable, but are customized for operation within the confines of the equipment they are designed to serve. 1. Each ASC shall be capable of stand-alone operation and shall continue to provide control functions without being connected to the network. 2. Each ASC will contain sufficient I/0 capacity to control the target system. B. Environment. The hardware shall be suitable for the anticipated ambient conditions. 1. Controllers used outdoors and/or in wet ambient shall be mounted within NEMA 4 type waterproof enclosures, and shall be rated for operation at -40 C to 65 C -40 F to 150 F. 2. Controller used in conditioned ambient shall be mounted in NEMA 1 type rated enclosures. Controllers located where not to be disturbed by building activity (such as above ceiling grid), may be provided with plenum-rated enclosures and non-enclosed wiring connections for plenum cabling. All controllers shall be rated for operation at 0 C to50c32fto 120F. C. Serviceability. Provide diagnostic LEDs for power and communications. All wiring connections shall be clearly labeled and made to be field removable. D. Memory. The Application Specific Controller shall maintain all BIOS and programming information in the event of a power loss for at least 90 days. E. Immunity to Power and noise. Controller shall be able to operate at 90% to 110% of nominal voltage rating and shall perform an orderly shutdown below 80%. F. Transformer. Power supply for the ASC must be rated at minimum of 125% of ASC power consumption, and shall be fused or current limiting type INSTRUMENTATION AND CONTROL FOR HV AC Page 8 of 15

23 2.6 INPUT/OUTPUT INTERFACE A. Hard-wired inputs and outputs may tie into the system through System, Custom, or Application Specific Controllers. B. All input points and output points shall be protected such that shorting of the point to itself, another point, or ground will cause no damage to the controller. All input and output points shall be protected from voltage up to 24V of any duration, such that contact with this voltage will cause no damage to the controller. C. Binary inputs shall allow the monitoring of on/off signals from remote devices. The binary inputs shall provide a wetting current of at least 12 ma to be compatible with commonly available control devices. D. Pulse accumulation input points. This type of point shall conform to all the requirements of Binary Input points, and also accept up to 3 pulses per second for pulse accumulation, and shall be protected against effects of contact bounce and noise. E. Analog inputs shall allow the monitoring of low voltage (0-10 V de), current ( 4-20 ma), or resistance signals (thermistor, RTD). Analog inputs shall be compatible with, and field configurable to commonly available sensing devices. F. Binary outputs shall provide for on/off operation. Terminal unit and zone control applications may use 2 outputs for drive-open, drive-close (tri-state) modulating control. G. Analog outputs shall provide a modulating signal for the control of end devices. Outputs shall provide either a 0-10 V de or a 4-20 ma signal as required to provide proper control of the output device. 2.7 AUXILIARY CONTROL DEVICES A. Temperature Sensors 1. Temperature sensors shall be Resistance Temperature Device (RTD) or Thermistor. 2. Duct sensors shall be rigid or averaging as shown. Averaging sensors shall be a minimum of 1.5m [5 feet] in length. 3. Immersion sensors shall be provided with a separable stainless steel well. Pressure rating of well is to be consistent with the system pressure in which it is to be installed. 4. ALL Space sensors shall be equipped with override capability ONLY. 5. Provide matched temperature sensors for differential temperature measurement. Differential accuracy shall be within 0.1 C [0.2 F]. B. Humidity Sensors 1. Duct and room sensors shall have a sensing range of 20% to 80% with accuracy of ±5% R.H. 2. Duct sensors shall be provided with a sampling chamber. 3. Outdoor air humidity sensors shall have a sensing range of20% to 95% R.H. It shall be suitable for ambient conditions of -40 C to 75 C [-40 F to 170 F]. 4. Humidity sensor's drift shall not exceed 1% of full scale per year INSTRUMENTATION AND CONTROL FOR HVAC Page 9 of 15