Attachment 2 to addendum 3_specs.pdf

9/01/2026 REV 3 INSTRUMENTATION AND CONTROL SYSTEMS

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SECTION 230900 – INSTRUMENTATION AND CONTROL SYSTEMS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 01 specification sections, apply to this section.

Division 23, Section 230500, "Common Work Results for HVAC" is directly related to work included in this section. Other sections are indirectly related and shall be reviewed.

1.2 SUMMARY

A complete Energy Management and Control System (EMCS) shall be provided to control and to monitor building systems as outlined in the descriptions of operation, drawings, and this specification. The EMCS shall employ direct digital control (DDC).

1. Provide all software, hardware and cabling necessary for communication between operator stations, controllers, sensors, actuators, and other devices.

2. Moore Air Base has an existing facility-wide Niagara system for monitoring only (no control) of several individual equipment points in this building. Maintain this feature and reconnect points to new equipment. Provide new sensor at point where old sensor is demolished if it is not reusable. Drawings indicate existing points to maintain.

a. Provide all miscellaneous software, wiring, parts, and labor required in establishing a complete and working system that is an interoperable network capable of communicating with the existing Niagara system.

3. Controls contractor shall be responsible for connecting all BACnet compatible equipment to the EMCS network. The connection may be via the contractor’s specific network or ethernet. The controls contractor is not required to add BACnet translation devices for equipment that does not include a BACnet option by its manufacturer.

1.3 GENERAL DESCRIPTION AND RESPONSIBILITIES OF THE CONTROLS

CONTRACTOR

The Controls Contractor shall provide on-site functional performance testing time following completion of their point to point confirmation, completion of programming, and completion of graphics screens. Controls contractor will execute functional performance tests to be provided by the Commissioning Authority and Engineer of Record. These functional performance tests are in addition to those required by the Controls Contractor to provide a complete functional system to the Owner.

Meetings will be held during the Commissioning phase of the project in which the Controls

Contractor is required to participate to coordinate with other trades and the Commissioning

Authority the effort required to properly Commission the building. The controls contractor shall participate in these Commissioning meetings.

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Controls are design build by the controls contractor. Detailed sequence of operation based on the description of operation on the plans shall be developed and submitted along with controls system plan drawings, control system diagrams, and control system component cut sheets to the engineer of record for review and approval. No change orders will be approved for graphics modifications requested by the Owner or Engineer of Record. Once approved, the Controls Contractor shall submit copies of graphics screen shots at least four (4) weeks before the beginning of functional performance testing for approval by the engineer of record. Controls Contractor must have all systems operational, all programming completed, and all point to point checkouts completed and submitted prior to the scheduled start of functional performance testing.

The description of operation on the plans provides general operational principles for the systems in this building and is intended to communicate the general intent for the performance of the different building mechanical systems. It does not include or address all detailed timing delays, relays, systems interlocks, equipment control diagrams, system interactions, etc. which must be developed by the Controls Contractor during detailed controls system design and programming.

Controls Contractor shall create the detailed sequence of operation and include this written sequence on the controls drawings. All points in the DDC system must be alarmable on the graphics. All setpoints must be user adjustable from the graphics without requiring programming changes.

Alarm programming is to be included as part of the DDC services for controls as is functional performance testing of all control systems.

Controls contractor shall include as part of the base bid an allowance that will permit changes to the written interface codes and graphics of the control programming as dictated by the Engineer or Record, Owner or Commissioning Authority. This allowance shall be eight (8) hours to cover for changes to the code and programming of the Controls system interface due to modifications to the Description of operation or parts of it by the Engineer of Record. These modifications can occur during the commissioning phase of the project or while executing functional performance testing. The Engineer of Record reserves the right to deviate from the original description of operation and to rewrite the description of operation or parts of it as to capture the complete requirements of the Owner and to provide a fully functional system. It is the Controls Contractor responsibility to provide the Owner, Commissioning Authority, and Engineer of Record a complete set of Controls Drawings, Sequence of Operation, Programming and Codes of all systems, at the end of the Commissioning Phase.

1.4 APPROVED MANUFACTURERS

Manufacturer:

1. Alerton by Honeywell

2. Delta Controls

3. Johnson Controls

4. Tridium by Honeywell

5. Automated Logic

Provide an HVAC control system with distributed processing units, input/output units, firmware, and standard operating software.

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1. Design, component selection, installation, custom programming, documentation, testing, training, and warranty service shall be the direct responsibility of the manufacturer or their local representative.

2. New equipment and software shall be selected for compatibility with systems that are presently installed at the site.

3. Control system may not use third-party storage systems. Cloud service offerings must have

FedRAMP certification.

1.5 DEFINITIONS

DDC: Direct digital control.

I/O: Input/output.

LonWorks: A control network technology platform for designing and implementing interoperable control devices and networks.

MS/TP: Master slave/token passing.

PC: Personal computer.

PID: Proportional plus integral plus derivative.

RTD: Resistance temperature detector.

1.6 SYSTEM PERFORMANCE

Comply with the following performance requirements:

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

2. Graphic Refresh: Update graphic with minimum 20 dynamic points with current data within eight seconds.

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

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

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

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

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

8. Reporting Accuracy and Stability of Control: Report values and maintain measured variables within tolerances as follows:

a. Water Temperature: Plus or minus one-degree F.

b. Water Flow: Plus or minus five percent of full scale.

c. Water Pressure: Plus or minus two percent of full scale.

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d. Space Temperature: Plus or minus one-degree F.

e. Ducted Air Temperature: Plus or minus one-degree F.

f. Outside Air Temperature: Plus or minus two-degrees F.

g. Dew Point Temperature: Plus or minus three-degrees F.

h. Temperature Differential: Plus or minus 0.25-degrees F.

i. Relative Humidity: Plus or minus five percent.

j. Airflow (Pressurized Spaces): Plus or minus three percent of full scale.

k. Airflow (Measuring Stations): Plus or minus five percent of full scale.

l. Airflow (Terminal): Plus or minus 10 percent of full scale.

m. Air Pressure (Space): Plus or minus 0.01-inch wg.

n. Air Pressure (Ducts): Plus or minus 0.1-inch wg.

o. Carbon Monoxide: Plus or minus five percent of reading.

p. Carbon Dioxide: Plus or minus 50 ppm.

q. Electrical: Plus or minus five percent of reading.

1.7 SUBMITTALS

Provide a complete set of reproducible control drawings using computer aided design and drafting

(CADD) technology. Include the following information:

1. Show general physical arrangement of component devices installed in the panels. Indicate applicable detailed drawing reference.

2. Provide a typical schematic drawing of each control circuit.

3. Identify equipment and devices by the reference designations shown on the drawings and by unique point identification used in system software. Provide material list with or on each drawing.

4. Supply block diagrams and schematics showing riser diagrams, the layout of equipment, communication cabling, and wire type.

5. Provide system diagrams showing the general mechanical system layout with all sensors/devices of each mechanical system.

6. Supply floor plan drawings showing the location of all controlled equipment and devices used for sensing and control.

7. Provide a schematic drawing of each control circuit, complete with individual wire identifications. Typical drawings are acceptable.

8. Provide LAN truck riser diagram showing cable routing and location of all repeaters.

Provide descriptions of operation detailing all control strategies, including initial setpoints and referencing all points by the point name used in the BAS programming. These descriptions of operation shall also be provided in the record drawings.

Provide a complete list of equipment to be furnished, which includes a manufacturer’s catalog sheet for each item on the material list.

1. DDC System Hardware: Bill of materials of equipment indicating quantity, manufacturer, and model number. Include technical data for operator workstation equipment, interface equipment, control units, transducers/transmitters, sensors, actuators, valves, relays/switches, control panels, and operator interface equipment.

2. Control System Software: Include technical data for operating system software, operator interface, color graphics, and other third-party applications.

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3. Controlled Systems: Instrumentation list with element name, type of device, manufacturer, model number, and product data. Include written description of description of Operation including schematic diagram.

4. Provide a damper schedule with one line per damper. Provide for each damper: The project

TAG, the size, the model of the damper, the type and model of the actuator, and whether the damper fails open, closed, or in place.

5. Provide a valve schedule with one line per valve. Provide for each valve: The project TAG, the size, the model of the valve, the pressure rating, the model and type of the actuator, the valve Cv, and whether the valve fails open, closed, or in place.

Provide a detailed test plan describing the specific procedures used to complete and document the

“Owner-witnessed Testing” described in the Final Acceptance requirement.

1. Test plans shall include a complete schedule for tracking each phase of the testing, e.g.

zone testing by floor, fan testing by system, chiller interface testing, heating system testing, etc.

2. The vendor is required to supplement the planned work effort to meet the progress dates given in the schedule.

3. Provide printout of programming code.

4. Show initial setpoints.

5. Provide all documentation necessary to interpret programming related submittals.

As part of the submittal process, the vendors shall meet with representatives of the Owner’s engineering and operations divisions, giving them a thorough briefing on the BAS programming design. This briefing shall describe in detail the methods the control programmer has used to meet the requirements of the description of operations.

Submit the point-to-point (PTP) and description-of-operation verification test plans at least 30 days prior to the scheduled beginning of testing. PTP testing shall be part of the construction schedule.

1.8 QUALITY ASSURANCE

All materials and equipment used shall be new, standard components, regularly manufactured and not custom-designed or fabricated specifically for this project.

All components and software shall have been previously tested and proven in regular use.

Minimum in-use requirements are 24 months for hardware and 12 months for major software

(whole number revision) releases.

Modularity. The HVAC control system shall possess a modular architecture, permitting expansion through the addition of more distributed processing units, input/output units, sensors, actuators, and operator stations.

Installer Qualifications: Automatic control system manufacturer's authorized representative who is trained and approved for installation of system components required for this Project.

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.

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Comply with ASHRAE 135 for DDC system components.

System Software: Update to latest version of software at Project completion.

Approval - Vendor shall submit and receive approval for all submittals including materials, floor plan, schematics, and programming prior to installation.

1.9 COORDINATION

Coordinate location of thermostats, carbon dioxide sensors, and other exposed control sensors with plans and room details before installation.

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

Coordinate equipment with Division 26 to achieve compatibility of communication interfaces.

Coordinate equipment with Division 26, Section 260913, "Panelboards" to achieve compatibility with starter coils and annunciation devices.

1.10 FINAL ACCEPTANCE REQUIREMENTS

Provide corrected documentation to show changes made to correct deficiencies discovered during commissioning tests. Reassemble manuals and drawing packages to reflect corrected documentation records.

Drawings and software:

1. Submit shop drawings reflecting final “as-built” condition.

a. Provide record drawings on AutoCAD 2024 or newer. Deliver two copies of data on two CDs without compression

b. Provide 3 copies of reproducible record drawings.

c. These record drawings shall accurately depict the final as-built conditions and shall be on Architectural/Mechanical backgrounds provided by the A/E.

d. These drawings shall include accurate depiction of location of sensors and controlled equipment (motor starters, valves, chillers, dampers, AHUs, etc.)

e. Insert one copy of applicable shop drawings, panel layout drawing, and points list at each enclosure’s documentation holder.

f. Furnish one original set of application software on CDs. Disks shall bear the manufacturer’s label. Field copies are not acceptable. Application software includes operating system, controls application generation, graphic support, maintenance support and all other utilities provided in support of the installed system.

Operation and Maintenance (O&M) Manuals: Provide two paper copies of material required and five copies on CDs in MS Word format. Describe operation, maintenance and servicing requirements of the HVAC control system and associated equipment. Provide the following information in separate sections, each with an index.

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1. Technical literature for all equipment, including catalog sheets, calibration, adjustments and operation instructions, and installation instructions

2. Hardware and software manuals, including information supplied by the original product developer, on the application programs and on the computers and controllers provided by vendor

3. System description and complete description of operation

4. Reduced size (11” x 17”) copies of record drawings

5. Input/Output (I/O) summary forms for the system, listing all connected analog and binary input and output functions and the number and types of points. Indicate spare input/output capacity

6. Completed point-to-point checkout plan used in Owner-witnessed testing, and the completed data sheets showing the results of the point-to-point testing.

Owner-Witnessed Testing

1. All parts of the testing described in this section are to be performed as point-to-point tests and control description verification. The Owner may choose to have this testing witnessed by a member of the Owner’s staff, by an independent commissioning agent, by a member of the A/E team, or otherwise.

a. One copy of the preliminary as-built documents shall be provided to support this testing.

b. After receipt of all system documentation by the Owner, notify Owner 10 working days before testing begins.

c. Testing shall be performed by the manufacturer or its local representative. The procedure for the test must provide a format for documenting the results, comments, vendor repair activity, vendor’s initials, and retest witnessing. Provide data sheets with one line for each physical point on the system, and columns to record the results, dates, and initials of witnesses for both pretests and witness tests.

d. The Contractor shall perform point-to-point pretests before the witnessed tests and shall fill out data sheets during pretests to demonstrate successful performance prior to witnessed tests.

Installation verification tests:

1. Verify operation, location, and identification of power sources, including circuit breakers and control power transformers.

2. Start/stop points: Issue start and stop commands from an operator station. Verify that controlled equipment responds appropriately and that the start/stop status is accurately reflected at the operator station.

3. Analog points: Analog inputs and outputs shall be verified at both extremes of their ranges and at the midpoint. Verify tight shutoff and full opening of dampers and valves.

4. Binary points: Verify that both commanded conditions (on/off, open/closed, etc.) are accurately reflected at the operator station.

5. Test fan and pump failure alarms by turning off the motor at the HOA switch and observing the run-state indication at the operator station.

6. Temperature points: Verify calibration of sensors by comparing displayed temperature values with the reading of an independent measuring device located in the same flow. Test liquid temperature sensors as installed in piping thermowells to verify effectiveness of heat conducting compound.

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7. Pressure points: Verify calibration of sensors by comparing displayed pressure with the reading of an independent measuring device located in the same flow stream. Retain the services of the balancer as required to confirm readings.

8. Control valves: Verify tight shutoff by comparing water or air temperatures entering and leaving the heat transfer device.

9. Operator response and sequencing: Demonstrate that descripted or modulated valves and dampers position accurately in response to posit multiple operators to provide simultaneous modulation of parallel dampers or valve assemblies.

10. Control signal stability, general: Demonstrate that control loops are tuned so that the output does not change until the controlled system has had time to respond to the last output signal.

11. Control signal stability, response to step input: Demonstrate that control loops are tuned so that they are stable without excessive hunting following a step input of not less than 20% of the operating/reset range of the controlled variable.

12. Control signal stability, floating point devices: Verify that minimum pulse output duration is no less than the value required to assure repositioning of the controlled device.

13. Demonstrate the capability of the controls system to execute the complete description of

Operation as given in the mechanical design documents.

14. Verify tight shut-off of all actuated control valves (for three-way valves, demonstrate capacity for 100% by-pass of coil).

Operator station tests:

1. Override test: Verify manual override capability for start/stop and modulated point types.

2. Control logic:

a. Exercise all control logic packages.

b. Check response to upset, change in setpoint.

3. Supervisory function:

a. Verify content of time clock schedules.

b. Verify alarm’s reporting capabilities.

4. Failure modes:

a. Verify all stand-alone operation by disconnecting communication lines between stand-alone control units and verifying continued operation.

b. Disconnect and reconnect controller power to confirm proper recovery from power failure (sample).

Other software tests:

1. Trend logging

2. Report generation

3. Remote access

4. Test the ability of the control system to automatically restart all the connected systems following a power restoration and fire alarm recovery.

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1.11 SERVICE AND GUARANTEE

The complete control system shall be warranted to be free of defects in manufacturing, workmanship, and materials for one year. Temperature sensor accuracy shall be warranted for three years. Software and documentation shall be revised to reflect system changes required to meet warranty obligations.

During the warranty period, provide emergency service telephone number where a qualified service technician, familiar with the installed system, may be reached and will respond within 12 hours.

1. This technician shall have the capability of remote communication with the control system for troubleshooting and program alterations.

2. The vendor shall pay all costs to provide communications for remote access.

3. A fully equipped, qualified repair technician shall be at the job site within four hours of a request for emergency service.

All replacement parts must be available on site within 48 hours during the term of the warranty.

Provide free of charge during the warranty period four DDC software sequence modifications (up to 24 hours engineering time) as instructed by the Owner. Modification shall be in software only.

1.12 POST-INSTALLATION TRAINING AND MATERIALS

The manufacturer and control contractor shall train operating personnel (FOMs) in the operation and maintenance of the system as follows:

1. The controls subcontractor shall provide the Owner's system operators complete training for proper control of the system under all modes of operation. These modes shall include but not be limited to summer/winter, energy management and alarm event description. The training shall be conducted during normal working hours, Monday through Friday at the job site. Training shall consist of both classroom and hands-on training. Provide a minimum of 16 hours of on-site training for a total of three people. This training shall be divided into at least 3 separate sessions on different days within a 6 month period of time as scheduled with the Owner. Provide each trainee with a copy of the description of operations and the graphics during each training session. Training will be refined based on the successful bidder and may address the following subjects:

a. Sensor/actuator operation.

b. System architecture and basic theory of operation.

c. Operator level (password level 1) interface to system for password access, alarm handling, point addressing, manual commands and statistical data acquisition.

d. Program level (password level two) operation for command control and definition of energy management parameters.

e. Configuration level (password level three) for all database entry and modification.

f. Review of description of operations.

g. System troubleshooting.

h. Emergency service support.

i. Fire alarm interface.

j. System restart after power failure.

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k. Replacement procedures of each system component.

l. Calibration and initialization procedures.

m. Regeneration procedures on all installed programming at operator’s control stations.

2. Provide one each of the following:

a. Complete reference materials (manuals) that would be used by a factory trained master technician

b. Test instruments, and software manufactured or modified by the manufacturer for use in the installation, troubleshooting, and repairs of installed devices. Include unique portable test terminal, test boxes, circuit card extenders, calibration modules, etc.

3. The Owner will be allowed to video tape any or all the training sessions.

1.13 SYSTEM COMMISSIONING

Provide assistance, staff, and materials to support the commissioning activities.

1. This includes all testing apparatus in use by the BAS contractor to test and calibrate or verify calibration of the control system.

2. Assistance includes but is not limited to reviewing test procedures and providing software enhancements to accommodate testing methods.

Provide staff and materials to support the point-to-point testing, also referred to as Owner-witnessed Testing and described under Final Acceptance Requirements.

Operate the control system for any commissioning tests specified in other specification sections.

1.14 DESCRIPTION OF OPERATION

See drawings M-601, M-602, M-603. Zone plan on sheet M-100.

PART 2 - PRODUCTS

2.1 GENERAL

Provide as required for a complete and operating building automation system, all software, hardware, input/output devices, wiring and control power not shown in electrical bid documents, actuated dampers, actuated valves, actuators, operation and maintenance training, special maintenance tools and aids, supervision of labor, and warranty.

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The system shall be built only of standard components kept in stock by the supplier.

1. All replacement parts shall be available on site within 48 hours.

2. The components shall not require customizing other than setting jumpers and switches, or adding firmware or software modules, or on-site software programming to do required functions.

System display should meet the following requirements:

1. The system is to be fully menu-driven.

2. All system titles, prompts, and instructions are to be in the English language.

3. All entries to be in natural units, i.e., a setpoint value shall be entered in its actual control unit of value, such as 74º F.

4. The primary means of information display and system management shall be by graphic display. Use the same style of display as is currently used throughout the facility.

5. Each display will contain comment sections to indicate area served (if area-specific) and contain a graphical presentation for all other interlocked systems.

2.2 BASIC SYSTEM FEATURES

Zone-by-zone control of space temperature, usage scheduling, and equipment failure reporting

(A zone is the area served by one HVAC terminal unit, fan coil, heat pump, air terminal, etc.)

For all controllers and other devices that do not automatically and immediately resume normal operation after loss of power and then restoration of power, provide Werner Electric Stabiline

UPS (Uninterruptable Power Supply) model SW1500 (or approved equal having five year battery life and battery hot swappable capability) for all cabinets having a mounting area over 120 square inches and containing controllers. These cabinets shall be provided with a fused duplex receptacle to be used a source for UPS power. Cabinet shall draw power from the UPS. Provide shelf for

UPS.

Tamper-proof room wall mounted sensors installed with Allen, Bristol, or similar hardware with local temperature setpoint adjustment (limited range). The maximum allowed temperature range shall be set from an operator’s station. Program the local control ranges as follows:

1. Standard thermostats - 70°F to 75°F

2. Mechanical and electrical rooms - 50°F to 85°F

Space temperature control in specifically identified locations will use return/exhaust duct mounted sensors and setpoint will be adjusted with computer interface.

Individually assignable priority password security system to prevent unauthorized use. Provide at least four levels including the following: Information only, change of setpoint & ON/OFF, programmer, and a fourth master level for assigning appropriate local access.

Equipment monitoring and alarm function including information for diagnosing equipment problems.

1. All system points shall be programmed to report alarm conditions by fully expanded point names that are tailored and specific to this project.

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2. Assign alarm limits at 10% above highest expected level and at 10% below lowest expected level (subject to control description design) or as requested by Owner.

3. Interlock all alarm points to system status to lock out alarms when the system is not operational by schedule or operator command.

Auto-restart, without operator intervention, the operator stations and all controlled equipment to the control state that would be in effect if the power failure or fire alarm event had not occurred.

Start/stop outputs shall continue to command the affected device while motor power is unavailable and allow for equipment restart, as previously commanded or scheduled, upon restoration of motor power.

Equipment run-time totalization of motor driven equipment.

Interactive displays of all input and output points: As a minimum, each of 200 screens on the monitor shall be able to display 25 interactive points and custom text.

Operator shall be able to, through keyboard interface, disable any control logic for any output or setpoint, temporarily substitute the value for any input/output, and introduce a different value or state for all inputs, outputs and setpoints.

Individual controllers shall be programmed with nonvolatile stand-alone control logic necessary to maintain appropriate HVAC equipment operation. While in temporary stand-alone mode, energy efficiency can be sacrificed to maintain temperature control and operational conditions that will not damage equipment or compromise health and safety.

Controllers shall, upon loss of valid programming, be capable of requesting and receiving a programming download of all required program code from the system management server.

Owner personnel shall be able to create and modify control software in any facility computer utilizing menu-driven programming. Owner personnel shall be able to store the programming on a removable computer disk and preprogram a nonvolatile, transportable memory storage device, which can be used for replacement of the programming in system controllers.

2.3 SYSTEM ARCHITECTURE

The BAS shall consist of a network of controllers providing full stand-alone operation of the building. The controllers shall contain the necessary programming to accomplish the description of operations for building control.

Controllers shall normally execute the control strategy to use peer-to-peer communication capabilities. Upon loss of communication, the stand-alone control unit shall be able to execute its own stand-alone programming. This distribution of control authority is mandated so that the lost communications capability shall not cause a complete loss of control for affected systems.

Operator station shall not be necessary to sustain building operation.

The Contractor shall provide all communication media, connectors, repeaters, hubs, and routers necessary for the internetwork.

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All controllers shall have a communication port for connections with the operator interfaces using the BACnet Data Link/Physical layer protocol.

Communication services over the internetwork shall result in operator interface and value passing that is transparent to the internetwork architecture as follows:

1. Connection of an operator interface device to any one controller on the internetwork will allow the operator to interface with all other controllers as if that interface were directly connected to the other controllers. Data, status information, reports, system software, custom programs, etc., for all controllers shall be available for viewing and editing from any one controller on the internetwork.

2. All database values (e.g., objects, software variables, custom program variables) of any one controller shall be readable by any other controller on the internetwork. This value passing shall be automatically performed by a controller when a reference to an object name not located in that controller is entered into the controller's database. An operator/installer shall not be required to set up any communication services to perform internetwork value passing.

Dedicated Controllers: All sensing points and controlled outputs associated with a sub-system or piece of equipment shall be wired to and processed within one controller. A sub-system is defined as a group of equipment items that are directly controlled together, such as the components associated with an air handler. A “reset” signal may come from another subsystem controller.

When supply terminal units are to be tracked by an exhaust terminal unit, all supply and exhaust monitoring and control points shall be processed by the same controller.

2.4 GRAPHICS

General: Provide complete graphics for all systems. Graphic completeness, appearance and quality shall be the best available from the approved manufacturer. All system shall be diagrammed in the graphics with measured values indicated at the appropriate location on the diagrammatic graphic. Setpoint, on-off-auto and similar adjustable shall be at the appropriate location on the diagrammatic graphic.

Graphic display requirements:

1. Provide a Microsoft Windows-based software package for the preparation of system graphics.

2. Include with this software a library of HVAC symbols such as fans, pumps, chillers, etc.

3. This section establishes standards for graphic displays as follows:

a. All operator stations shall be programmed to display dynamic color graphic representations of the mechanical systems and floor areas for which this system has control.

b. Systems to be displayed include the air handlers (including all monitored and controlled components), air terminal units, fans, chillers and towers, heat converters and exchangers, pumping systems and similar mechanical devices.

c. Show the mechanical equipment components on a single graphic. Example: Chilled and condenser water pumps, cooling towers, chillers, differential pressure control valves, etc.

d. Displays shall automatically update with current real time data.

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e. Room floor plan displays are required and shall indicate the approximate positions of controlled mechanical system elements.

f. All displays shall show real time data to include temperatures, actuator positions, and motor run status.

g. All system input, output and setpoint points shall be displayed on an appropriate graphic.

2.5 DDC EQUIPMENT

OPERATOR STATIONS

1. Local Access: Operator interface with the installed EMCS equipment and the entire campus BAS shall be performed with portable computers and desktop computers using site licensed software.

2. WEB Access: It shall be possible to interface with the EMCS via the internet web browser.

a. Operators shall be able to access information through user interfaces at the application controller and the plant controller levels, as well as at the master display.

b. System shall be an open, interoperable system supporting LonWorks®, BACnet® and/or other protocols.

3. Operator interface with the EMCS includes the ability to operate and program all campus

EMCS equipment. The ability to look, adjust/override and program will be controlled using access levels.

4. Overall management of the EMCS, storage of programs, data, trends, access control, graphics.

5. Application Software:

a. I/O capability from operator station.

b. System security for each operator via software password and access levels.

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

d. Database creation and support.

e. Automatic and manual database save and restore.

f. Dynamic color graphic displays with up to 10 screen displays at once.

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

h. Alarm processing, messages, and reactions.

i. Trend logs retrievable in spreadsheets and database programs.

j. Alarm and event processing.

k. Object and property status and control.

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

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

1) Current values of all objects.

2) Current alarm summary.

3) Disabled objects.

4) Alarm lockout objects.

5) Logs.

n. Custom report development.

o. Utility and weather reports.

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p. Workstation application editors for controllers and schedules.

q. Maintenance management.

6. Custom Application Software:

a. English language oriented.

b. Full-screen character editor/programming environment.

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

d. Support conditional statements.

e. Support floating-point arithmetic with mathematic functions.

f. Contains predefined time variables.

Control Units: Modular, comprising processor board with programmable, nonvolatile, random-access memory; local operator access and display panel; integral interface equipment; and backup power source.

1. Units monitor or control each I/O point; process information; execute commands from other control units, devices, and operator stations; 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. Software applications, scheduling, and alarm processing.

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

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

Local Control Units: Modular, 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.

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

I/O Interface: Hardwired inputs and outputs may tie into system through controllers. Protect points so that shorting will cause no damage to controllers.

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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.

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

(four to 20 Ma).

6. 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.

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 one 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 three seconds without failure.

Power Line Filtering: Internal or external transient voltage and surge suppression for workstations or controllers with the following:

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.

2.6 UNITARY CONTROLLERS

Each controller shall operate as part of the control system and as an independent unit when not in communication with other controllers or an operator station. Global controllers shall be able to share Global information on a peer-to-peer basis without relying on an operator station.

It shall be possible to define control strategies at each controller from any operator station. Each controller shall be able to interface directly with an operator station.

Each controller shall include its own microprocessor, power supply, and, if necessary, battery with automatic charger. Upon loss of system power, the controller memory shall be maintained for a minimum of 72 hours with no external source of power. Upon restoration of system power, the control unit shall resume full operation without operator intervention.

Provide control programming logic at each controller for proportional and/or proportional plus integral control capabilities as necessary to assure complete and stable control of each controlled variable.

Each controller shall maintain and perform its own stand-alone control strategy upon communications failure. The controller stand-alone control program shall be adequate to maintain

APHIS MAB Building 6403 Renovation 230900 - 17 the basic control function and provide protection from inappropriate equipment operation. The controller shall retain its programming during a power failure and resume operation without program reloading from another device.

The controllers shall be powered by 24 VAC.

Each controller shall be isolated (optically or by other means) from communication trunk and have fuse or overload protection.

The controller point monitoring and control capabilities shall include but not be limited to the following as required to accomplish specified sequence of operation:

1. Binary inputs (contact closures)

2. Analog inputs (use only resistive, 0-10 volt, and 4-20 ma. inputs; provide A/D conversion of 10 bits, minimum)

3. Binary output (start/stop or latching and momentary contacts)

4. Floating point control

5. Analog outputs (must include 4-20 ma. @ 10 VDC minimum, 0 -10 VDC; provide A/D conversion of 12 bits, minimum).

6. ASHRAE 135 Compliance: Communicate using read (execute and initiate) and write

(execute and initiate) property services defined in ASHRAE 135. Reside on network using

MS/TP datalink/physical layer protocol and have service communication port for connection to diagnostic terminal unit.

2.7 ALARM PROGRAM

For each alarm input, provide the following assignable alarm responses:

1. Display English language point description in addition to system point identification.

2. Print out alarm description and operator-created alarm message.

3. Require acknowledgment by operator and print occurrence if directed by Owner.

2.8 LOGS

Trend log: As a minimum, provide capacity for 50 trend logs. Provide for review of data on monitor and printer. Each trend log shall have assignable start/stop times/dates.

Current alarm log: Display all points currently in alarm. Operator activity log: Record operator activity by operator account identification and work performed during a minimum of the last 10 log-in sessions or last 20 commands.

2.9 ANALOG CONTROLLERS

Step Controllers: 6- or 10-stage type, with heavy-duty switching rated to handle loads and operated by electric motor.

Electric, Outdoor-Reset Controllers: Remote-bulb or bimetal rod-and-tube type, proportioning action with adjustable throttling range, adjustable set point, scale range minus 10 to plus 70-degree F, and single- or double-pole contacts.

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Electronic Controllers: Wheatstone-bridge-amplifier type, in steel enclosure with provision for remote-resistance readjustment. Identify adjustments on controllers, including proportional band and authority.

Fan-Speed Controllers: Solid-state model providing field-adjustable proportional control of motor speed from maximum to minimum of 55 percent and on-off action below minimum fan speed. Controller shall briefly apply full voltage, when motor is started, to rapidly bring motor up to minimum speed. Equip with filtered circuit to eliminate radio interference. Remote-control-point adjustment shall be plus or minus 20 percent of sensor span, input signal of 3 to 13 psig.

2.10 FAILURE MODE

Upon failure of any global controller, the operator station shall display off-line occurrence for each affected point and provide communication verification to each controller for each I/O channel.

In the event of communication failure, controller shall continue to operate equipment using appropriate backup values for missing global information. If sensor information is necessary for proper stand-alone function, then that sensor shall be attached directly to the appropriate controller. Provide failure mode programming to accomplish safe operation of equipment in case of communications failure on local trunk.

Upon return of primary power after a power failure of up to 72 hours, the system shall automatically return to completely normal operation with no action required from operating personnel.

Unless otherwise indicated in the design documents, provide the following failure modes, (that is, the position that the controlled device attains under failure due to loss of power, loss of air pressure, or loss of communications) for valves and dampers:

1. All Fan cooling water valves shall fail closed.

2. All central cooling water differential pressure control valves shall fail closed.

3. All fan exhaust air and outside air dampers shall fail closed.

4. All fan recirculation dampers shall fail open.

5. Zone-level air valves and terminal unit dampers may fail in place.

2.11 ENERGY REDUCTION AND SPECIAL OPERATION SOFTWARE

The system shall be designed to control energy-consuming loads. Provide engineering, consulting, and programming to develop and set up the following energy reduction software:

1. Time schedules: Software should provide at least 16-time schedules. Each schedule is to be an 8-day type, capable of six entries minimum per day. Time program shall provide

ON/OFF commands and reset SETPOINT capabilities.

2. Holiday time programs: Provide a holiday time schedule capability.

3. Optimal start/stop: Provide the ability to optimize start/stop times to attain and maintain temperature setpoint only during occupied times. The system shall be self tuning, with compensation for weekends and holidays.

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4. Setpoint reset: Provide a means of automatically resetting heating water, chilled water and ventilation air temperatures, volumes, and pressures.

5. Provide a program to automatically restart all DDC controlled equipment upon the resumption of power or return from fire alarm condition. Equipment shall be restarted according to a prearranged, prioritized, and staggered restart schedule.

6. For loads that have been turned off at the Motor Control Center, either by positioning of the HOA switch or the line disconnect; provide a restart strategy that automatically restarts load upon the reset of switches to their normal on-line positions.

7. Provide capability to adjust the setpoints of main mechanical systems from an operator station using simple ‘point and click’ command windows.

2.12 ELECTRONIC SENSORS

Temperature sensors:

1. Sensors shall be completely precalibrated with no electrical adjustments or calibration required for standard installation conditions.

2. The temperature displayed at an operator station shall be accurate to within 1º F. This accuracy shall be warranted (parts and labor) for a minimum of three years.

3. Wall-mounted sensors shall be tamperproof. Wall mounted sensors for zone controls shall provide jack for operations laptop connection. That connection shall allow communication with system for monitoring and adjusting at least the zone-level equipment serving that zone. Wall sensors shall include temperature readout and shall provide basic control description diagnostic and reset features and local setpoint adjust and after-hours override

4. Freeze protection sensors shall be non-averaging.

5. Thermowells shall be bronze, brass, or stainless steel with 1-inch NPT threads.

6. Install piping temperature sensors adjacent to temperature gauge or test port.

a. Use heat-conducting compound in thermowells.

b. Strap-on fluid temperature sensors will not be allowed.

7. Mount outside air sensors inside the outside air intake as to avoid solar influence and directly sense the average temperature of the air entering the air handling unit(s).

Air velocity transmitter: Shall provide air velocity information independent of the effects of static pressure. Transmitter shall operate at rated accuracy from 0º F to 120° F. The minimum accuracy of displayed value at an operator station shall be 95% through the range of 20% to 100% of sensed airflow, with a drift rate no greater than one percent per year. The proportional output shall be 4 to 20 ma.

Differential and static pressure transmitter: Transmitter shall operate from 50% of minimum to

150% of maximum anticipated pressure. The maximum error of displayed value at…