Attachment 3 - 230905 INSTRUMENTATION AND CONTROLS FOR HVAC OBO.pdf

JUBA ELECTRICAL UPGRADE DEVELOPMENT July 13, 2020

JUBA SOUTH SUDAN Issued for Bid

INSTRUMENTATION AND CONTROLS FOR

HVAC SECTION 230905 - 1

SECTION 230905 - INSTRUMENTATION AND CONTROLS FOR HVAC

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes Building Automation System (BAS) control equipment for HVAC systems and components, including control components for terminal heating and cooling units not supplied with factory-wired controls.

B. Related Sections include the following, but not limited to:

1. Section 223230 “Potable Water Treatment.”

2. Water Booster Pumps, and Water Softeners, and other water treatment are specified in

Division 22 sections.

3. Identification is specified in Division 23 Section on identification for HVAC system.

4. Hydronic and refrigerant piping are specified in Division 23 sections.

5. Computer Room Air Conditioning Unit and Water Leak Detection Systems are specified in Division 23.

6. Chillers, AHUs, VAVs and other mechanical equipment are specified in Division 23 sections.

7. Electrical cables and raceways/boxes are specified in Division 26 sections.

8. Section 260913 “Electric Power Monitoring”; apart from PLC-type controls and lighting controls, automated electrical power controls are not used.

9. Panelboards are specified in Division 26 Section on panelboards.

10. Motor control centers are specified in Division 26 Section on motor control centers.

11. Variable Frequency Drives are specified in Division 26.

12. Building lighting control system is specified in Division 26.

13. Network connections and signal/communications cable are specified in Division 27.

14. Section 283115 “Addressable Fire Alarm Systems.”

15. Section 333700 “Wastewater Treatment Plant.”

16. Section 335617 “Underground Fuel Storage Tanks and Distribution” for fuel monitoring.

1.2 SYSTEM DESCRIPTION

A. General: This Section includes Building Automation System (BAS) control equipment for

HVAC systems and components, including control components for terminal heating and cooling units not supplied with factory-wired controls. These control systems regulate building pressurization, temperature and humidity, CO2 concentrations, and ventilation rates in thermostatic zones. Additionally, control systems provide: Continuous monitoring of electric/fuel/water consumption at each building, AHU fan speeds, AHU entering and leaving air temperatures and filter pressure drops, hydronic water pressure drops as well as water flow rate, VAV and hydronic valve actual and minimum and maximum settings, equipment operations, automated starting/stopping for energy conservation and power failures. Energy consumption shall be monitored and reported to end-user computer for entire compound, each individual building (e.g., office building, utility building), each AHU, and each chiller on BAS.

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1. Digital (DDC) and/or electric/electronic controls are the OBO standard. In case of DDC network system failure, redundancy requirements shall permit local stand-alone operation of all HVAC systems. Controls installer shall provide sufficient space in control wire conduits and panels to allow 25 percent future increase in control points. Sequence of operation shall include the following modes of operation: normal/occupied, low-flow/unoccupied, lead/lag rotation, emergency operation and alarms.

2. HVAC equipment and controls shall automatically restart after power disruptions. BAS shall automatically restart control sequences without need for manual intervention. Each

VFD shall be delayed five seconds as each unit comes on line, and shall have slow ramp

up. If this requires the inclusion of UPS equipment, then it shall be provided, installed and tested as required by this section subcontractor.

B. Control system consists of sensors, indicators, actuators, final control elements, interface equipment, other apparatus, and accessories to control mechanical systems. Main or front-end personal computer (PC) and printers shall serve only non-Controlled Access Area (non-CAA) spaces and shall be located in common area within Facilities offices, but not in the Facilities

Manager’s office, and shall provide central control over all non-CAA HVAC equipment. Provide two portable laptop PCs complete with operating system licenses, graphics software and as-built

BAS programming: Forward selected subset of alarm printouts, as either indicated on construction documents or directed by COR, concurrently to printer station at Post 1 for after-hours supervision.

C. No wireless technology is permitted for BAS. All sensors, actuators and controllers shall be hardwired, and shall not be wireless. Diagnostic equipment shall not use wireless technology.

D. Control system shall collect data necessary to provide detailed reports for power consumption and energy review. Obtain power consumption data from electrical power monitoring system via mapping of selected Owner approved points available via third-party interface; see Division 26

Section “Electrical Power Monitoring.” Data for consumption (kW) usage (kWh), voltage (V) and power factor (pf) shall provide daily, monthly and annual consumption, highs, lows and averages. Reports shall provide data for fuel consumption (liters), natural gas (m3), outside ambient temperatures (deg C), relative humidity (percent), and water consumption (liters) for each building on compound, and for photovoltaic system provided power (kW) when system is required in contract. Provide reports for major individual feeders for buildings. Reports shall be provided on monthly basis via system software. Provide data in digital formats, capable of data mining. Maintain data in format which can provide required reports for minimum of two years

(current year plus two years).

E. Graphic Display: Display graphic with minimum 20 dynamic points with current data within 10 seconds.

1. Graphic Refresh: Update graphic with minimum 20 dynamic points with current data within 10 seconds.

2. Object Command: Reaction time of less than two seconds between operator command of a binary object and device reaction.

3. Object Scan: Transmit change of state and change of analog values to control units or workstation within six seconds.

4. Alarm Response Time: Annunciate alarm at workstation within 45 seconds. Multiple workstations shall receive alarms within five seconds of each other.

5. Program Execution Frequency: Run capability of applications as often as five seconds, but selected consistent with mechanical process under control.

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6. Performance: Programmable controllers shall execute DDC PID control loops, and scan and update process values and outputs at least once per second.

7. Reporting Accuracy and Stability of Control: Report values and maintains measured variables within tolerances identified in Part 2 of this Section.

1.3 SYSTEM PERFORMANCE

A. General: System design shall conform to OBO Mechanical Code (International Mechanical Code as amended by OBO).

B. Provide complete and functional DDC system in accordance with Construction Documents.

Points listed in “Points List Schedule” at end of this section are minimum requirements of this control system. It is responsibility of controls contractor to confirm detailed DDC points list, control sequences, and control system strategy write up that will achieve stable control performance together with thorough and complete system monitoring; these shall be agreed and approved by Engineer of Record and by COR with input from OBO/PDCS/DE/ME and project

Commissioning Agent.

1.4 SUBMITTALS

A. General:

1. Building automation system (BAS) submittals shall be complete in every respect, and shall be submitted as one complete package with a traceable number. Partial submittals will be rejected, and are not subject to review.

2. After the initial submittal, subsequent submittal versions shall each include a unique revision number. Updates in revised submittals shall be clouded with the revision number.

Revisions packages of each security zone shall also be complete for the respective zone.

3. First submittal shall be discussed in detail during Controls Integration Meeting specified in QUALITY ASSURANCE, with OBO comments on the submittal incorporated into the subsequent submittal.

B. Product Data: Include manufacturer's technical literature for each control device. Indicate dimensions, capacities, performance characteristics, electrical characteristics, finishes for materials, and installation and startup instructions for each type of product indicated. Include control valve and valve and damper actuators lists in Excel or other spreadsheet format to clearly identify tag number, model number, Cv, size, pressure rating, plenum rating, torque, voltage, etc.

C. Shop Drawings: Detail equipment assemblies and indicate dimensions, weights, loads, required clearances, method of field assembly, components, and location and size of each field connection.

Provide legend for all symbols used.

1. System Architecture Design Diagram

a. Riser diagram showing IP layer and all field bus layers.

b. Show each computer, printer, router, repeater, controller, and protocol translator that is connected to either the IP layer or any of the field busses.

c. Each component that is shown shall have name that is representative of how it will be identified in completed database and manufacturer’s name and model number.

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d. Physical relationship of one component to another component shall reflect proposed installation. For example, if AHU1 controller is closest controller to Building

Controller on field bus, then this device shall be shown as first device on riser diagram just below Building Controller.

e. This diagram shall not include power supplies, UPS, sensors or end devices.

2. Layout Design Drawing for each control panel:

a. Layout drawing shall be to scale with all devices shown in their proposed positions.

b. Identify all control devices by tag number.

c. Show all terminal strips and wire channels and fiber optic to copper cable converters.

d. Show all control transformers.

e. Show all 120 VAC receptacles and power supplies (including panel and breaker numbers) coordinated with Division 26.

f. Show all IP connection points.

3. Wiring Design Diagram for each control panel.

a. Control voltage wiring diagram shall clearly designate devices powered by each control transformer. If control devices use half wave power, diagram shall clearly show consistent grounding of appropriate power connection. Annotate all wire identification numbers on diagram.

b. Field Bus wiring diagram shall clearly show use of daisy chain wiring concept, order in which devices are connected to Field Bus, and location of end of segment termination devices. Annotate all wire identification numbers on diagram.

c. If shielded communication wiring is used, show grounding of shield.

d. Terminal strip wiring diagram shall identify all connections on both sides of terminal strip. Annotate wiring label numbers for all wiring leaving control panel on diagram.

e. Identify designated allowance for future 25 percent expansion capacity

f. Show floor plan routing and sizing for all conduit associated with each control panel, including wire-fill analysis for future expansion capacity.

g. Identify third-party interface wiring type, communications protocol and locations

4. Wiring Design Diagram for individual components (controllers, protocol translators, etc.):

Wiring diagram for each component shall identify all I/O, power, and communication wiring, and locations on terminal blocks to which wires are landed (e.g., Fan Status sensor is wired from terminals 5/6 on controller to terminals 17 and 18 on terminal strip).

5. Installation Design Detail for each I/O device.

a. Drawing of wiring details for each sensor and/or end device.

b. For devices with multiple quantities, standard detail may be submitted.

6. System Flow Design Diagram for each controlled system.

a. Two-dimensional cross-sectional diagram showing key components such as fans, coils, dampers, valves, and pumps.

b. Identify locations and names of all sensors and end devices associated with control system. Label panel name and terminal numbers where connections are landed.

7. Building Pressurization System

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a. System layout shall include: both indoor and outdoor sensor locations with mounting design; where fire-rated penetrations are required in walls or ceilings with reference to penetration details which describe material transitions as required; where plenum-rated tubing is required; locations of control panels; requirements for power provided under Division 26; zone pressure sensors shall not be located near mailroom exhaust, kitchen hood exhaust, AHU return ducts, medical lab exhaust hoods, or other sources of positive or negative pressure which will adversely affect the stability and accuracy of the sensor readings

D. Updated Points List: Provide updated, complete, and functional point list based on points listed in “Points List Schedule” at end of this Section, and consistent with requirements of Article on

SYSTEM PERFORMANCE.

E. DDC System Hardware Technical Data:

1. Complete bill of materials of equipment to be used indicating quantity, manufacturer, and model number.

2. Manufacturer’s description and technical data for each unique device of types identified in this subparagraph, including performance curves, product specification sheets, and installation instructions. When manufacturer’s data sheet refers to series of devices rather than specific model, data specifically applicable to project shall be highlighted or clearly indicated by other means. Include this data for operator workstation equipment, interface equipment, control units, transducers/transmitters, sensors, actuators, valves, relays/switches, control panels, and operator interface equipment.

F. Control System Software Information:

1. Include technical data for operating system software, operator interface, color graphics, and other third-party applications.

2. Submit all licensing information for all software installed on the servers, workstations and laptops.

G. Graphic Pages: Submit sample graphics page for each type of page described in Article on

GRAPHICS PAGES.

H. Instrumentation List for each controlled system.

1. List shall be in table format.

2. Include name, type of device, manufacturer, model number, and product data sheet number.

Description to include if device is intended for plenum rating, indoor or outdoor installation, as well as fail-safe position.

I. Sequence of Control: Provide sequence of control for each system or piece of equipment being controlled. Include the following as a minimum.

1. Process control sequence for each end device.

2. Supervisory logic sequence of control for each system.

3. Impact of each global application program on sequence of control (Example: Demand

Control).

4. List of all physical inputs and outputs associated with each sequence.

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5. Within sequence of control, annotate all application parameters that are to be user-adjustable from Operator’s Workstation (OW) with (adj) after name of parameter. This shall include information such as set points, reset schedule parameters, calibration offsets, timer settings, control loop parameters such as gain, integral time constant, sample rates, and differentials.

6. Within sequence of control, annotate all calculated values that are to be viewable at the

OWS with (rpt) after name.

7. All points subject to override from an operator workstation, including set point adjustments, start/stop, enable/disable, open/close.

8. List of all alarm points, description of alarm, and description of alarm criteria.

9. List of all variables for which historical trending will be applied, sample rates, and any criteria used to start and stop historical trending.

J. Training Manuals for each Training Course

1. Submit the following six weeks in advance of the scheduled training approved by site team and/or Contracting Officer:

a. List of training objectives.

b. Outline of the course with time allocations per topic.

c. Training presentation material (slides, word documents, etc.).

d. Copy of training reference material (product manuals to be used, etc.).

e. Description of measurement devices to measure training effectiveness (quizzes, programming exercises, course exam).

f. Instructor’s name and resume, with emphasis on experience in presenting training programs.

g. Plan for specified video training documentation (e.g. site security approval for camera on site, who will take video, who will edit video onto DVD, Table of

Contents of training to be recorded, and other requirements of Division 01 Section

“Demonstration and Training”), and sample attendees sign-in sheet for record purposes.

2. Submit the following within three weeks of training completion:

a. List of attendees.

b. Performance scores on assessment devices.

K. Startup Testing Plan: Submit start up testing plan for each unique system.

1. Purpose of startup test is to demonstrate “completeness” of physical tasks associated with installation, and physical performance of components.

2. For each task on startup test checklist, plan shall require technician to enter their initials and date test was completed, along with any recorded data such as voltages, offsets, or tuning parameters. Record any deviations from submitted installation plan.

3. Required elements of startup testing include:

a. Measurement of voltage sources, primary and secondary.

b. Verification of proper controller power wiring.

c. Verification of component inventory when compared to the submittals.

d. Verification of labeling on components and wiring. Each device is properly labeled, and matches the graphics display correctly

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e. Verification of connection integrity and quality (loose strands and tight connections).

f. Verification of bus topology, grounding of shields and installation of termination devices.

g. Verification of point checkout.

1) Each I/O device is landed in accordance with submittals, and functions in accordance with sequence of control.

2) Analog sensors are properly scaled and value is reported

3) Binary sensors have correct normal position, and state is correctly reported.

4) Analog outputs have correct normal position and move full stroke when so commanded.

5) Binary outputs have correct normal state and respond appropriately to energize/de-energize commands.

6) Control valves are confirmed not to be leaking when commanded to fully closed position under system operating pressure

h. Documentation of analog sensor calibration (measured value, reported value and calculated offset).

i. Documentation of Loop tuning (sample rate, gain and integral time constant).

4. Submit at least four weeks prior to any scheduled start-up tests.

L. Startup Testing Report.

1. Submit startup testing reports on per system basis.

2. Startup Testing Reports: Documented results of executed startup testing plans.

M. Performance Verification Testing Plan: Submit verification plan for each system.

1. Purpose of performance verification test is to ensure that system performs in accordance with sequence of control. For each end device that is controlled, there shall be series of step-by-step cause-and-effect tests to verify each aspect of sequence of control.

2. Define performance verification test for operator interaction with system. Include test elements which require verification of all operator interaction tasks, including but not limited to the following.

a. Login and user settings.

b. Graphics navigation.

c. Trend data collection and presentation.

d. Alarm handling, acknowledgement, and routing.

e. Time schedule editing.

f. Application parameter adjustment.

g. Override control from DDC panel or operators workstation. Dampers and valves shall have manual hand crank actuation along with electric actuation for manually positioning actuator.

h. Report execution.

i. Automatic backups.

j. Web Client access.

3. Submit at least four week prior to the scheduled execution of test.

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N. Record Documents: The following is list of post construction submittals that shall be updated to reflect any changes during construction and re-submitted as “As-Built”.

1. System architecture drawing including room numbers for the PC, printers, and each programmable controller.

2. Floor plans of each building showing VAV locations, room numbers, temperature sensor locations and VAV system address.

3. Layout drawing for each control panel.

4. Wiring diagram for each control panel.

5. Wiring diagram for individual components.

6. System flow diagram for each controlled system.

7. Instrumentation list for each controlled system.

8. Sequence of control for each system and piece of mechanical equipment.

9. List of alarms and routing (PC, printer, Post 1, etc).

10. Building Pressurization System floor plans

11. Soft copies of as-built programming shall be posted on ProjNET, and also submitted on

CDs. Refer to requirements of Article on DDC SOFTWARE AND FILES, and to Division

01 Section “Closeout Procedures.”

O. Operation and Maintenance Manuals: Operations and Maintenance Manuals shall consist of two parts, and comply with Division 01 Section “Operation and Maintenance Data.”

1. Part I: Information common to the entire system. This shall include, but not be limited to the following:

a. Product manuals for key software tasks.

1) Operating the system.

2) Administering the system.

3) Operator workstation.

4) Application programming.

5) Network servers and controllers.

6) Setting up the web server.

7) Report creation.

8) Graphics creation.

9) Re-installing graphics software and/or as-built programming from CD

b. System architecture diagram.

c. List of recommended maintenance tasks associated with system servers, operator workstations, data servers, web servers, and web clients.

1) Define task.

2) Recommend frequency for task.

3) Reference product manual that includes instructions on executing task.

d. Names, addresses, and telephone numbers of installing contractors and service representatives for equipment and control systems.

e. Licenses for equipment and systems.

f. Submit three separate copies for PCC systems.

2. Part II: Information common to systems in single building.

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a. System architecture diagram for components within building annotated with specific location information.

b. As-built drawing for each control panel.

c. As-built wiring design diagram for each control panel.

d. As-built wiring design diagram for all components.

e. Installation design details for each I/O device.

f. As-built system flow diagram for each system.

g. Sequence of control for each system.

h. Product data sheet for each component.

i. Installation data sheet for each component.

P. Compatibility Certification: Submit manufacturer’s certification that seats, gaskets and seals are compatible with design operating fluid(s).

Q. Expandability Certification: Subcontractor shall certify conformance with requirement for 25 percent future expansion panel and conduit fill ratio space in accordance with SUMMARY

Article in this Section.

1.5 OWNERSHIP OF PROPRIETARY MATERIAL

A. Government retains all rights to software and passwords used for this project.

B. Government will sign copy of manufacturer’s standard software and firmware licensing agreement as condition of this contract. Such license shall grant use of all programs and application software to Government as defined by manufacturer’s license agreement, but shall protect manufacturer’s rights to disclosure of Trade Secrets contained within such software.

C. Licensing agreement shall not preclude use of software by individuals under contract to

Government for commissioning, servicing, or altering system in future. Use of software by individuals under contract to Government will be restricted to use on Government’s computers, and only for purpose of commissioning, servicing, or altering installed system.

D. All project developed software, files and documentation shall become property of Government.

These include but are not limited to:

1. Server and Workstation software (including laptops)

2. Application Programming Tools

3. Configuration Tools

4. Addressing Tools

5. Application Files

6. Configuration Files

7. Graphic Files

8. Report Files

9. Graphic Symbol Libraries

10. All Documentation.

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1.6 QUALITY ASSURANCE

A. Installer Qualifications: Experienced installer who is authorized representative, certified installer, and/or approved installer of automatic control system manufacturer for both installation and maintenance of units required for this Project.

1. Controls Installer shall possess and maintain Secret facility clearance with Secret safeguarding capability.

B. Manufacturer Qualifications: Firm experienced in manufacturing automatic temperature-control systems similar to those indicated for this Project, and with record of successful in-service performance.

1. BAS system shall be manufactured in U.S., or shall have U.S. version of hardware/software provided for the project.

2. BAS manufacturer shall have U.S. training center that provides BAS operator, system programmer, and system installer training. This US based center shall provide Government ready access to facilitate personnel attendance and to enable Government oversight of training.

3. BAS manufacturer shall have U.S. parts supply base to accommodate shipment of components intended for use in restricted facility spaces.

C. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by testing agency acceptable to COR based upon input from PDCS/DE/DE/EE, and marked for intended use.

D. Comply with NFPA 90A, "Installation of Air Conditioning and Ventilation Systems."

E. Design and install control systems and components in accordance with ASHRAE/ANSI Standard

135 (BacNet) or Lonworks protocol.

F. Controls Integration Meeting: Prior to beginning field installation, meet with COR and project

Commissioning Agent on approval of controls hardware, software, strategies and procedures plan to develop a mutual understanding of details and system requirements. Ensure participation of

BAS controls team members, equipment manufacturers' authorized service representatives with who BAS controls system will interface (e.g., fuel oil, fire alarm, TAB), and other support personnel. Provide 14 days' advance notice of scheduled meeting time and location.

1. Agenda Items: Include the following at minimum:

a. Submittal distribution requirements.

b. Contract Documents examination report.

c. Controls calibration, point-to-point check, startup and commissioning plan.

d. Work schedule and Project site access requirements.

e. Coordination and cooperation of trades and subcontractors.

f. Coordination of documentation and communication flow.

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g. Interface with third party software (e.g., water treatment skid, wastewater treatment skid, fuel oil system panel, chillers, boilers, kitchen hood, VFDs, ATSs, TGS)

h. Review of first submittal package

i. Review of miscellaneous controls details and building pressurization

1.7 COORDINATION

A. General: Refer to “Related Sections” for systems requiring coordination with work of this

Section.

B. Coordinate location of temperature, pressure and humidity sensors, and other exposed control components with plans and room details before installation.

C. Coordinate supply of electrical circuits for control units and operator workstation.

D. Coordinate equipment with Division 26 Section on panelboards to achieve compatibility with starter coils and annunciation devices.

E. Coordinate equipment with Division 26 Section on motor-control centers to achieve compatibility with motor starters and annunciation devices.

F. Coordinate equipment with Division 26 Section on variable frequency motor controllers to achieve compatibility.

G. Coordinate equipment with Section 283115 "Addressable Fire Alarm Systems" to achieve compatibility with equipment that interfaces with that system.

H. If this contractor chooses to coordinate through the General Contractor to have

Telecommunications subcontractor provide BAS fiber communications network between buildings, terminate such BAS communications network fiber on completely separate blocks from campus communications blocks, such that no interconnectivity can exist between two separate systems. If OBO has hired an independent third-party commissioning firm to field implement provisions of Division 01 Section “Commissioning,” it is expected that this BAS controls subcontractor shall fully participate in the commissioning process.

1.8 EXTRA MATERIALS

A. Furnish extra materials described below that match products installed, and that are packaged with protective covering for storage and identified with labels describing contents.

B. Replacement Materials: Provide 10 percent extra replacement sensors, relays, control transformers, actuators, VAV controllers, unitary plant controllers, network controllers, distributed I/O blocks/controllers, network interface modules, and routers of each type/model/sizes used on the project. If 10 percent is less than one, provide one. If 10 percent is greater than ten, provide ten.

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PART 2 - PRODUCTS

2.1 AVAILABLE MANUFACTURERS AND INSTALLERS

A. Products: Subject to compliance with requirements, manufacturers and associated installers

(shown below as Manufacturer – Installer) whose work may be incorporated into the Work include, but are not limited to, the following:

1. Schneider Electric (BacNet) – Alabama Controls; Pelham, Alabama.

2. Delta (BacNet) – Temperature Control Services; Lebanon, Indiana.

3. Honeywell (LonWorks) – Southeastern Temperature Controls; Pelham, Alabama.

4. Johnson Controls (BacNet) – Federal Systems; Gaithersburg, Maryland.

5. Siemens (BacNet) – Siemens Government Systems; Reston, Virginia.

6. Trane (BacNet) – Trane Building Automation Systems; St. Paul, Minnesota.

2.2 CONTROL SYSTEM

A. Provide DDC system with distributed processing. If network LAN is corrupted, all controllers shall remain in operation using most recent data received over LAN.

B. Provide complete system of automatic temperature control of HVAC system, including all control accessories and devices necessary to accomplish desired results, whether specifically mentioned herein or not.

C. Control system shall be Direct Digital Control (DDC) system. DDC system shall maintain stable temperature control and all other conditions as indicated. End-to-end accuracy of system, including temperature sensor error, wiring error, A/D conversion and display shall be plus-or-minus 1°F.

D. DDC system shall consist of Operator’s Workstation (OW), multiple local area networks connecting components, Digital Controllers (DC) and Terminal Unit Controllers (TUC). All software control programs shall reside in local controller for each item of equipment. All alarms shall be sent to OW where they shall be processed according to priority and job requirements.

E. Communications between DCs and OW, and between DCs and TUCs, shall be through Local

Area Networks (LAN). Design LAN for high speed communication; actual rate shall not be less than 100 megabits for the LAN connecting DCs. LAN shall allow sharing of data such as outside air temperature and alarm reporting. LAN shall allow for uploading and downloading of software to or from DCs, from either OW or Portable Operator’s Terminal (POT). LAN may be multi-level network. LAN wiring shall be pair of shielded twisted 18 gauge wires or fiber optic cabling system. LAN shall include error detection for transmission with correction and retransmission capability.

F. Provide materials and installation labor necessary to connect to components factory supplied under other Sections, as part of equipment controlled.

G. Unless specified otherwise, provide fully modulating output devices operating valves and dampers.

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H. Where “packaged equipment” is provided with its own integral controls, connect to packaged equipment with appropriate devices to effect operation described in Contract Documents. Do not make connections/interconnections which result in package equipment manufacturer voiding their warranty. Intent of Construction Documents is to allow packaged systems, once activated, to operate under their own controls unless specifically indicated otherwise herein.

I. All setpoints shall be adjustable at OW by easily accessible on-screen dialog box, slider, or other approved man-machine interface. Provide password protection for changing setpoints at higher level than for basic OW read access.

J. Floating point control is acceptable for use at room level for VAV terminals, fan coil units, and similar equipment. All other analog devices shall be true analog using 0-10 VDC or 4-20 MA signals

K. Control system shall interface with the following systems identified in “Related Sections”:

1. Medical Equipment such as Laboratory Fume Hood.

2. Water Treatment, Water Booster Pumps, and Water Softeners.

3. Wastewater Treatment.

4. Computer Room Air Conditioning Unit and Water Leak Detection Systems.

5. Chillers, AHUs, VAVs and similar HVAC equipment.

6. Building Power Monitoring System.

7. Variable Frequency Drives.

8. Building lighting control system.

9. Fuel Monitoring and Management System.

2.3 DDC SOFTWARE AND FILES

A. Software:

1. Submit copy of all software installed on servers, workstations, and laptops.

2. Submit copy of all software used to execute the project, even if software was not installed on servers, workstations, and laptops.

3. All software revisions shall be as installed at time of system acceptance.

B. Firmware Files:

1. Submit copy of all firmware files downloaded to, or pre-installed on, any devices installed as part of this project.

2. This does not apply to firmware permanently burned on chip at factory which can only be replaced by replacing chip.

3. Submit copy of all application files created during execution of the project.

4. Submit copy of all graphic page files created during execution of the project.

C. Secondary Graphics Files: Submit copy of all secondary graphic files (e.g., bitmaps, jpegs) used in creation of graphic pages.

D. Application Software:

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1. I/O capability from operator station.

2. System security for each operator via software password and access levels (not less than three access levels).

3. Automatic system diagnostics; monitor system and report failures.

4. Database creation and support.

5. Automatic and manual database save and restore.

6. Dynamic color graphic displays for risers, floor plans, and other system level displays.

7. Custom graphics generation and graphics library of HVAC equipment and symbols.

8. Alarm processing, messages, and reactions.

9. Trend logs retrievable in spreadsheets and database programs.

10. Alarm and event processing.

11. Object and property status and control.

12. Automatic restart of field equipment on restoration of power.

13. Data collection, reports, and logs. Include standard reports for the following:

a. Current alarm summary.

b. Disabled objects.

c. Alarm lockout objects.

d. Logs.

e. Energy usage/operation times

14. Custom report development.

15. Utility reports.

16. Workstation application editors for controllers and schedules.

17. Maintenance management.

E. Custom Application Software:

1. English language oriented.

2. Full-screen character editor/programming environment.

3. Allow development of independently executing program modules with debugging/simulation capability.

4. Support conditional statements.

5. Support floating-point arithmetic with mathematic functions.

6. Contains predefined time variables.

2.4 DDC EQUIPMENT

A. Operator Workstation: PC-based microcomputer(s) with minimum configuration as follows:

1. IV Motherboard: With 8 integrated USB 2.0 ports, integrated Intel Pro 10/100 (Ethernet) with RJ45 connection, integrated audio, bios, and hardware monitoring.

2. Processor: Intel Pentium i5.

3. Random-Access Memory: 6.0 GB.

4. Graphics: Super Video Graphics Adapter (SVGA), minimum 1280 x 1024 pixels, 8.0 EDO video memory.

5. Monitor: 485 mm (19 inches), LCD color flat panel monitor.

6. Keyboard: QWERTY, 105 keys in ergonomic shape.

7. Hard-Disk Drive: Two 320GB in RAID 1 (duplexing) configuration.

8. CD-ROM/DVD Read/Write Drive.

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9. Mouse: Two-button with wheel, optical.

10. Uninterruptible Power Supply: Size for PC and printer to operate for minimum of ten minutes to allow generator power to be fully functional and stable.

11. Operating System: Microsoft Windows 7 64-bit Professional.

12. Programs: Microsoft Office Suite to include Word and Excel.

13. Application Software: As required to interface with digital controllers.

14. Printer (Report @ Operator Workstation): Color, ink-jet type as follows:

a. Print Head: Minimum of 4800 x 1200 dpi -optimized color resolution.

b. Paper Handling: Minimum of 100 sheets.

c. Print Speed: Minimum of 17 ppm in black and 12 ppm in color.

d. Provide USB and 10/100 Ethernet ports for connectivity with BAS and Power

Monitoring systems.

15. Complete graphics software package (Graphic User Interface)

B. Diagnostic Terminal Unit/Portable Operators Terminal: Provide two portable notebook-style, PC-based microcomputer terminal capable of accessing system data by connecting to system network with minimum configuration as follows:

1. System: With two or more integrated USB 2.0 ports, integrated Intel Pro 10/100 (Ethernet) with RJ45 connector, integrated audio, bios, and hardware monitoring.

2. Processor: Intel Pentium i5.

3. Random-Access Memory: 2.0 GB.

4. Graphics: Video adapter, minimum 1024 x 768 pixels, 64 -MB video memory.

5. Monitor: 430 mm (17 inches), LCD color.

6. Hard-Disk Drive: 250 GB.

7. CD-ROM/DVD Read/Write Drive: 48x24x48.

8. Pointing Device: Touch pad or other internal device and separate mouse.

9. Operating System: Microsoft Windows 7 64-bit Professional

10. Programs: Microsoft Office Suite, including Word and Excel.

11. Complete graphics software package (Graphic User Interface)

12. Application Software: As required to interface with digital controllers.

C. Critical Alarm Panel. Provide HMI panel for monitoring only of critical alarms from BAS.

Located at Post 1 when Post 1 is continually occupied. Locate at CAC for Lock and Leave Posts.

D. Digital Control Units: Modular, self-contained, stand-alone controller comprising processor board with programmable, nonvolatile, random-access memory; local operator access and display panel; integral interface equipment; and memory backup power source to maintain program for at least 48 hours. Provide digital controller at each air handling unit, each heating system and each cooling system as minimum.

1. Units perform the following: Monitor or control each I/O point; process information;

execute commands from other control units, devices, and operator workstations; and download from or upload to operator workstations. Operation of operator workstation shall only be necessary to reset digital controller’s clock, and to send alarm messages or data to operator at operator’s workstation.

2. Units shall be Ethernet capable at I/O level without need for any additional routers or gateways.

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3. Stand-alone mode control functions operate regardless of network status. Functions include the following:

a. Global communications.

b. Discrete/digital, analog, and pulse I/O.

c. Monitoring, controlling, or addressing data points.

d. Software applications, scheduling, and alarm processing.

e. Testing and developing control algorithms without disrupting field hardware and controlled environment.

4. Standard Application Programs:

a. Electric Control Programs: Demand limiting, duty cycling, automatic time scheduling, start/stop time optimization, night setback/setup, on-off control with differential sequencing, staggered start, antishort cycling, PID control, DDC with fine tuning, and trend logging.

b. HVAC Control Programs: Optimal run time, supply-air reset, and enthalpy switchover.

c. Chiller Control Programs: Control function of condenser-water reset, chilled-water reset, and equipment sequencing.

d. Programming Application Features: Include trend point; alarm processing and messaging; weekly, monthly, and annual scheduling; energy calculations; run-time totalization; and security access.

e. Provide tabular display of terminal unit information for each terminal unit.

f. Units of Measure: Inch-pound and SI (metric).

g. Identify all valve output signals as percent open to heat transfer coil

h. Identify all damper actuator output signals as percent open

5. Local operator interface provides for download from or upload to operator workstation or diagnostic terminal unit.

E. Local Control Units: Application specific, modular controller, comprising processor board with electronically programmable, nonvolatile, read-only memory; and backup power source.

1. Units monitor or control each I/O point, process information, and download from or upload to operator workstation or diagnostic terminal unit.

2. Stand-alone mode control functions operate regardless of network status. Functions include the following:

a. Global communications.

b. Discrete/digital, analog, and pulse I/O.

c. Monitoring, controlling, or addressing data points.

d. Self-diagnostics of internal components.

e. Proportional and proportional plus integral control loops.

3. Local operator interface provides for download from or upload to operator workstation or diagnostic terminal unit.

4. Reside on second level LAN, with at least one communication port.

HVAC SECTION 230905 - 17

5. Provide capability to have separate heating and cooling setpoints as much as 4.5 deg C apart with “no energy band” between two setpoints.

6. Provide transformer of sufficient capacity to power controller and actuators controlled by terminal unit controller. Provide manual primary side disconnect switch meeting NEC requirements.

F. I/O Interface: Hardwired inputs and outputs may tie into system through digital controllers.

Protect points so that shorting will cause no damage to controllers.

1. Binary Inputs: Allow monitoring of on-off signals without external power.

2. Pulse Accumulation Inputs: Accept up to 10 pulses per second.

3. Analog Inputs: Allow monitoring of low-voltage (0- to 10-V dc), current (4 to 20 mA), or resistance signals.

4. Binary Outputs: Provide on-off or pulsed low-voltage signal, selectable for normally open or normally closed operation with three-position (on-off-auto) override switches and status lights.

5. Analog Outputs: Provide modulating signal, either low voltage (0- to 10-V dc) or current

(4 to 20 mA) with status lights, two-position (auto-manual) switch, and manually adjustable potentiometer.

6. Floating Point or Tri-State Outputs: Provide two coordinated binary outputs for control of three-point, floating-type electronic actuators.

7. Universal I/Os: Provide software selectable binary or analog outputs.

G. Power Supplies: Transformers with Class 2 current-limiting type or overcurrent protection; limit connected loads to 80 percent of rated capacity. DC power supply shall match output current and voltage requirements and be full-wave rectifier type with the following:

1. Output ripple of 5.0 mV maximum peak to peak.

2. Combined 1 percent line and load regulation with 100-mic.sec. response time for 50 percent load changes.

3. Built-in overvoltage and overcurrent protection and be able to withstand 150 percent overload for at least 3 seconds without failure.

H. Power Line Filtering: Provide internal or external transient voltage and surge suppression for all workstations and for primary and programmable controllers at the following (excluding terminal unit controllers such as VAV controllers):

1. Minimum dielectric strength of 1000 V.

2. Maximum response time of 10 nanoseconds.

3. Minimum transverse-mode noise attenuation of 65 dB.

4. Minimum common-mode noise attenuation of 150 dB at 40 to 100 Hz.

2.5 GRAPHICS PAGES

A. Hierarchy:

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1. The organization of graphic pages shall be from global level down to very detailed level through series of links.

2. Linking shall allow operator to move down hierarchy, up hierarchy and laterally within hierarchy.

B. Hierarchy Outline:

1. Site Plan Page: Visual representation of site (map). One page or multiple linked pages, depending on size of site plan.

a. Link to individual building graphic pages.

b. Link to Utility Management page.

c. Display outdoor weather conditions.

2. Utility Management Page: Summary of data on utility consumption for site.

a. Link up to site plan.

b. Display:

1) Utility consumption data (electricity, gas, fuel oil, water).

2) Power Monitoring data, including

a) Demand

b) Voltages, currents, and power factors.

c) Demand control actions currently in effect.

c. Presentation of utility management data may require more than one graphic page to effectively report data from multiple meters.

3. Building Graphic Page: Typically picture of building. One page per building.

a. Link to floor plans within building.

b. Link to central plant graphics where plant serves entire building.

c. Link to delivery systems if delivery system serves entire building

d. Link up to site plan.

4. Building Pressurization Page: Schematic of building showing each pressure zone and displaying all pressure values.

a. Link up to Building Page

b. Link to floor plans within building.

c. Link to Delivery System page (AHU) for each floor or pressurization area.

5. Floor Plan Page: This will be two-dimensional plan of floor area. Minimum of one page per floor per building is required. Where floor plans are large, multiple linked pages are required. For each control zone, display value of controlled parameters. This will typically be lighting status, temperature, and relative humidity (if relative humidity is a controlled variable).

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a. Link up to Building page.

b. Link up to Site Plan page.

c. Link to any delivery system that serves floor plan area (air handling unit is typical).

d. Link to time schedules that affect systems that serve area.

e. Link to Terminal Unit Summary page such as VAVs or fan coil units.

f. Identify individual control zones.

g. Show location of terminal equipment serving each zone.

h. Show location of sensors installed in occupied space.

i. Show room numbers, where available.

6. Central Plant Page: Graphical representation of equipment that makes up plant (e.g., chillers, pumps, boilers). If plant is small, this graphic shall display values of process variables and commands to end devices. If plant is complex this graphic shall only contain links to equipment graphics. Provide page for each plant.

a. Link up to Building page.

b. Link up to Site Plan page.

c. Link to Central Plant Equipment Component page (e.g., chiller, pumps, tower).

d. Graphic representation of the equipment shall be 3-dimensional.

e. Display:

1) Process variables.

2) Commands to end devices.

3) Status of end devices.

4) Alarm points if this is only central plant graphic.

5) Plant status (enabled/disabled).

6) Demand control status.

f. Link to any time schedules that affect operation of plant.

g. Link to any pre-configured trend charts associated with performance of plant.

h. Link to Central Plant Configuration Page.

7. Central Plant Equipment Component: Graphical representation of element of equipment

(e.g., chiller, pumps, boiler, tower, or some combination of these). Provide page for each primary equipment item per plant.

a. Link up to Central Plant page.

b. Link up to Building page.

c. Link up to Site Plan page.

d. Graphic representation of the equipment shall be 3-dimensional.

e. Display:

1) Process variables.

2) Commands to end devices.

3) Status of end devices.

4) Alarm points.

5) Equipment status (enabled/disabled).

6) Demand control status.

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f. Link to any time schedules that affect operation of equipment component.

g. Link to any pre-configured trend charts associated with performance of equipment component.

h. Link to Central Plant Configuration Page.

8. Central Plant Configuration Page: On this page, operator is given access to configuration parameters for entire plant or for piece of equipment in plant. Typically, this page presents data in tabular format. Type of data on this page is not changed frequently, but operator may wish to view it frequently. Provide one page per plant for small plants, and one page per primary equipment item per plant for larger plants.

a. Set Points.

b. Tuning Parameters.

c. Calibration Parameters.

d. Timing Parameters.

e. Application parameters.

f. Reset Schedules.

g. Lead Lag Information.

h. Time Schedules.

i. Link up to Equipment or Central Plant page.

j. Link up to Building page.

9. Delivery System Page: Graphical representation of air or water delivery system (e.g., air handling unit, roof top air handling unit, computer room air conditioning unit). One page for each delivery system.

a. If Delivery System serves specific floor area, link up to Floor Area page.

b. Link up to Building page.

c. Link up to Site Plan page.

d. Link to Central Plant page if Delivery System is served by Central Plant.

e. If Delivery System supplies multiple terminal devices, link to Terminal Unit

Summary page.

f. Link to Delivery System Configuration page.

g. Graphical representation of equipment shall be 3-dimensional and represent true physical characteristics of installed system.

h. Display:

1) Process variables.

2) Commands to end devices.

3) Status of end devices.

4) Status of different modes (economizer on/off, mechanical cooling enabled/disabled, occupied/unoccupied).

5) Alarm points.

i. Link to any time schedules that affect system operation.

j. Link to any pre-configured trend charts for system.

10. Delivery System Configuration Page: On this page, operator is given access to configuration parameters for delivery system. Typically, this page presents data in tabular format. Type of data on this page is not changed frequently, but operator may wish to view it frequently. One page per delivery system is required.

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a. Display:

1) Set Points.

2) Tuning Parameters.

3) Calibration Parameters.

4) Timing Parameters.

5) Application parameters.

6) Reset Schedules.

7) Lead Lag Information

8) Time Schedules.

b…