Addendum 1

Fort Valley State University FVSUB-062023 Health and Physical Education Complex Boiler Replacement

NBP #22128

ADDENDUM NO. 1

A1 - 1

This Addendum forms part of the Contract Documents and modifies the original bidding documents dated June 14, 2023. Acknowledge receipt of this Addendum in the space provided on the Bid Form. Failure to do may subject the bidder to disqualification.

The contract documents are herein amended under the date of August 4, 2023 as follows:

AMENDMENTS TO THE SPECIFICATIONS

1. SECTION 01 4000 – QUALITY REQUIREMENTS

A. 1.4.L.: Add the following paragraphs to the Documents:

L. The following Contractors submitted Qualifications meeting the Specified Requirements and are approved to bid:

1. Greene and Associates

2. JM Clayton

3. T&D Mechanical

2. Replace SECTION 23 0923- DIRECT-DIGITAL CONTROL SYSTEM FOR HVAC in its entirety.

END OF ADDENDUM

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DIRECT-DIGITAL CONTROL SYSTEM FOR HVAC 23 0923 - 1

SECTION 23 0923 - DIRECT-DIGITAL CONTROL SYSTEM FOR HVAC

PART 1 GENERAL

1.1 SECTION INCLUDES

A. System description.

B. Controllers.

C. Power supplies and line filtering.

D. Controller software.

E. Software set-up and application programming.

F. Owner demonstration and training.

1.2 RELATED REQUIREMENTS

A. Section 23 0510 -General HVAC Requirements-Demonstration, Training and Instructions.

B. Section 23 0913 - INSTRUMENTATION AND CONTROL DEVICES FOR HVAC.

C. Section 23 0994 - HVAC Sequence of Operation.

D. Section 26 2717 - Equipment Wiring: Electrical characteristics and wiring connections.

1.3 REFERENCE STANDARDS

A. MIL-STD-810 - Environmental Engineering Considerations and Laboratory Tests; Revision G, 2014.

B. NFPA 70 - National Electrical Code; 2020 Edition, Including All Applicable Amendments and

Supplements.

1.4 SUMMARY

A. The campus building automation system (BAS) is a Tridium Niagara 4 supervisor with JACE

8000 panels as the Building Point of Connection (BPOC). New programmable controllers shall be individually licensed controllers (ILC). Communication from the JACE panel to the new controllers shall be BACnet MSTP.

1.5 SYSTEM DESCRIPTION

A. Automatic temperature control field monitoring and control system using field programmable micro-processor based units.

B. Base system on distributed system of fully intelligent, stand-alone controllers, operating in a multi-tasking, multi-user environment on token passing network, with central and remote hardware, software, and interconnecting wire and conduit. Provide Building Controllers (BC), Advanced Application Controllers (AAC), and Application Specific Controllers (ASC) as required to achieve specified sequences and performance.

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C. Include computer software and hardware, operator input/output devices, control units, local area networks (LAN), sensors, control devices, actuators.

D. Provide control systems consisting of thermostats, control valves, dampers and operators, indicating devices, interface equipment and other apparatus and accessories required to operate mechanical systems, and to perform functions specified.

E. The Contractor shall be responsible for all equipment, cables, installation, and programming to implement the required interface with the campus network.

F. Include installation and calibration, supervision, adjustments, and fine tuning necessary for complete and fully operational system.

1.6 SUBMITTALS

A. Refer to Section 23 0510 - General HVAC Requirements for submittal procedures.

B. Product Data: Provide data for each system component and software module.

C. Shop Drawings:

1. Table of Contents listing sheet titles and sheet numbers.

2. Each sheet shall have a title indicating the type of information included and the HVAC system controlled.

3. Provide drawing legend and list of abbreviations.

4. System architecture: Provide a drawing of the proposed system architecture showing configuration and locations of DDC controllers (existing and new), fan coil unit controllers, and hardware and wiring for connections to networks external to the building.

5. Provide floor plans in electronic and hard copy format locating all controls units (existing and new), existing workstations, existing servers, LAN interface devices, existing gateways, etc. Include all WAN and LAN communication wiring routing, power wiring, power originating sources, and low voltage power wiring. Indicate network number, and controller type for each control unit. Indicate media, protocol, baud rate, and type of each

LAN. All optical isolators, repeaters, end-of-line resistors, junctions, ground locations, etc.

shall be located on the floor plans. Wiring routing as-built conditions shall be maintained accurately throughout the construction period and the drawing shall be updated to accurately reflect accurate, actual installed conditions coordinated with the work of other trades.

6. DDC system data: Proposed system manufacturer's data sheets on DDC controllers, sensors, meters, relays, actuators, motors, fan coil unit controllers, protection devices, and other devices specified herein. Include data on system software packages to be installed and illustrations of proposed graphics displays.

7. Diagrams: Separate field wiring diagrams for each system, motor starting and interlock wiring, ladder diagrams, control wiring, interior electrical circuits of control instruments with terminal and control device designations, actuators and motors, color of wires, locations of instruments and remote elements, interfaces with communications equipment provided

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with equipment specified in other Sections, and normal positions of relays. Each diagram shall have terminals labeled as they will be marked on the installed equipment. Electrical wiring diagrams shall include diagrams with all wire numbers and terminal block numbers identified. Provide panel termination drawings on separate drawings. Ladder diagrams shall appear on system schematic. Clearly differentiate between portions of wiring, which is existing, factory-installed and portions to be field-installed.

8. The control submittal is to include schematic control drawings showing the configuration of the equipment, the location of all sensors, monitoring inputs, and controlled devices and any equipment that the control system monitors, enables or controls, even if the equipment is primarily controlled by packaged or integral controls.

D. With each schematic, provide a point summary table listing building number and abbreviation, system type, equipment type, full point name, point description, Ethernet backbone network number, network number, device ID, object ID (object type, instance number). Provide a full points list with the following included for each point:

1. Controlled system

2. Point abbreviation/acronym

3. Point description

4. Engineering unit to be displayed with the point

5. Control point or set-point (Yes / No)

6. Monitoring point (Yes / No)

7. Intermediate point (Yes / No)

8. Calculated point (Yes / No)

E. Proposed Graphics: Submittal shall include all proposed displays and proposed revisions to existing displays as required by the project documents and specifications.

F. Sequences of operation: Complete detailed sequences of operation, including a narrative of the system operation and interactions and interlocks with other systems written by the control vendor; notations indicating whether interlock or interaction is accomplished through software or hard-wired connections; detailed delineation of control between packaged controls and the

DDC system; and sequences of operation for packaged controlled equipment that interfaces with the DDC system describing what points the DDC system monitors only and what points are control points and are adjustable. Sequence shall include:

1. Equipment start-up sequences.

2. Warm-up mode sequences.

3. Normal operating mode sequences.

4. Detailed sequences for all control strategies, e.g., economizer control, optimum start/stop, capacity control, staging, optimization, etc.

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5. Temperature and pressure control: setbacks, setups, resets, etc.

6. Shutdown sequences.

7. Unoccupied mode sequences.

8. Sequences for all alarms and emergency shut downs.

9. Effects of power or equipment failure with all standby component functions.

10. Seasonal operational differences and recommendations.

11. Initial and recommended values for all adjustable settings, set-points and parameters that are typically set or adjusted by operating staff; and any other control settings or fixed values, delays, etc. that will be useful during testing and operating the equipment.

12. Schedules, if known.

13. All sequences shall be written in small statements, each with a number for reference. For a given system, numbers will not repeat for different sequence sections, unless the sections are numbered

G. BACnet Systems:

1. BACnet object description, object ID, and device ID, for each I/O point.

2. Documentation for any non-standard BACnet objects, properties, or enumerations used detailing their structure, data types, and any associated lists of enumerated values.

3. Submit PICS indicating the BACnet functionality and configuration of each controller.

H. Electronic Submittals: While all requirements for hard copy submittal apply, control submittals and O&M information shall also be provided in electronic format as follows:

1. Drawings and Diagrams: Schematic flow diagrams and system architecture diagrams shall be provided on electronic media as AutoCAD 2005 or later version drawing files. Other drawings and diagrams may be provided as either AutoCAD files or PDF files, as most appropriate.

2. Other submittals: All other submittals shall be provided in Adobe Portable Document

Format.

I. Manufacturers’ Instructions: Indicate manufacturer's installation instructions for all manufactured components.

J. Project Record Documents: Record actual locations of control components, including control units, thermostats, and sensors.

K. Operation and Maintenance Data:

1. Include interconnection wiring diagrams complete field installed systems with identified and numbered, system components and devices.

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2. Include keyboard illustrations and step-by-step procedures indexed for each operator function.

3. Include inspection period, cleaning methods, cleaning materials recommended, and calibration tolerances.

4. Provide maintenance instructions and spare parts lists for each type of control device, control unit, and accessory.

5. Provide BAS User's Guides (Operating Manuals) for each controller type and for all workstation hardware and software and workstation peripherals.

6. Provide BAS advanced Programming Manuals for each controller type and for all workstation software.

7. Include all submittals (product data, shop drawings, control logic documentation, hardware manuals, software manuals, installation guides or manuals, maintenance instructions and spare parts lists) in maintenance manual; in accordance with the requirements of Divisions

1 and 23.

8. Provide as-built network architecture drawings showing all BACnet nodes including a description field with specific controller identification, description and location information.

9. Record copies shall include individual floor plans with controller locations (existing and new) with all interconnecting wiring routing including space sensors, LAN wiring, power wiring, low voltage power wiring. Indicate device instance, MAC address and drawing reference number.

10. Provide record system architecture riser diagram showing the location of all controllers

(existing and new).

11. Complete original issue diskettes for all software provided, including operating systems, programming language, back up copy of programming code for the controllers in the project, operator workstation software and graphics software.

12. Licenses, guarantees, and warranty documents for all equipment and systems.

13. Maintain project record documents throughout the construction period and submit final documents at Material Completion.

L. Observation by the Design Professional: Provide an affidavit to the Design Professional stating the Controls Systems are performing in accordance with the contract documents prior to

Request for Material Completion.

M. Warranty: Submit manufacturer's warranty and ensure forms have been filled out in the Owner s name and registered with manufacturer.

N. Certificate: Provide Manufacturer's Certificate complying with the requirements of the General

Conditions.

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1.7 QUALITY ASSURANCE

A. Perform work in accordance with NFPA 70.

B. Personnel: Mechanics and electricians performing this work shall be regularly engaged in the installation of automatic temperature controls and be in the direct employ of the installing company and shall have a copy of the approved submittal data in immediate possession when performing work.

C. Products Requiring Electrical Connection: Listed and classified by Underwriters Laboratories

Inc., as suitable for the purpose specified and indicated.

1.8 WARRANTY

A. See Section 01 7800 - Closeout Submittals for additional warranty requirements.

B. All components, system software, and parts furnished and installed by the BAS contractor shall be guaranteed against defects in materials and workmanship for one year from date of Material

Completion. Project-specific software, database software, and firmware updates which resolve known software deficiencies as identified by the BAS Contractor shall be provided to the Owner at no charge during the warranty period. All corrective software modifications made during warranty period shall be updated on all user documentation and on user and manufacturer archived software disks.

C. At Material Completion, the BAS contractor shall upgrade all control software and firmware packages to the latest release available from the vendor.

D. Provide five year manufacturer's warranty for field programmable micro-processor based units.

1.9 PROTECTION OF SOFTWARE RIGHTS

A. The owner shall sign a copy of the manufacturer's standard software and firmware licensing agreement as a condition of this contract. Such license shall grant use of all programs and application software to owner as defined by the manufacturer’s license agreement, but shall protect manufacturer's rights to disclosure of trade secrets contained within such software. All project developed software and documentation shall become the property of the owner. These include, but are not limited to:

1. Project graphic images

2. Record drawings

3. Project network database

4. Project-specific application programming code

5. All documentation

B. The Contractor shall provide additional software licensing as follows:

1. Provide or upgrade all licensing for all software packages at all required workstations.

Building automation system licensing shall allow unlimited simultaneous users for access

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to all aspects of the system including system access, workstations, points, programming, database management, graphics etc. No restriction shall be placed on the licensing. All operator interfaces, programming environment, networking, database management and any other user software used by the Contractor to install the system or needed to operate the system to its full capabilities shall be licensed and provided to the Owner.

2. All software should be available on all Operator Workstations or servers provided, and on all Portable Operator Terminals. Hardware and software keys to provide all rights shall be installed on all workstations. At least 2 sets of CDs shall be provided with backup software for all software provided, so that the Owner may reinstall any software as necessary.

Include all licensing for workstation operating systems, and all required third-party software licenses.

3. Provide licensing and original software copies for each Operator Workstation or server.

PART 2 PRODUCTS

2.1 BACNET COMMUNICATION

A. Control products, communication media, connectors, repeaters, hubs, and routers shall comprise a BACnet internetwork. Controller and operator interface communication shall conform to the latest edition of ANSI/ASHRAE Standard 135, BACnet.

B. Each controller shall have a communication port for temporary connection to a laptop computer or other operator interface. Connection shall support memory downloads and other commissioning and troubleshooting operations.

C. Controllers with real-time clocks shall use the BACnet Time Synchronization service. The system shall automatically synchronize system clocks daily from an operator-designated controller via the internetwork. If applicable, system shall automatically adjust for daylight saving and standard time.

D. Web server or workstation and controllers shall communicate using BACnet protocol. Web server or workstation and control network backbone shall communicate using ISO 8802-3

(Ethernet) Data Link/Physical layer protocol and BACnet/IP addressing as specified in

ANSI/ASHRAE 135 BACnet Annex J.

E. The system shall use BACnet as the native communication protocol between distributed controllers communicating on the controller network (i.e., Field Bus) and must, as a minimum, support the following Objects and Application Services (Conformance Class 3):

1. Objects > Binary Input Services > Readproperty

2. Binary Output Writeproperty

3. Binary Value

4. Analog Input

5. Analog Output ReadMultipleProperty

6. Analog Value WriteMultiplePropery

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7. Calendar

8. Schedules

2.2 CONTROLLERS

A. Arrange Controllers and Unit I/O so that control unit functions continue if communications over network are lost.

2.3 BUILDING CONTROLLERS

A. Manufacturer: JACE 8000

B. General:

1. Manage global strategies by one or more, independent, standalone, microprocessor based controllers.

2. Provide sufficient memory to support controller's operating system, database, and programming requirements.

3. Share data between networked controllers.

4. Controller operating system manages input and output communication signals allowing distributed controllers to share real and virtual object information and allowing for central monitoring and alarms.

5. Utilize real-time clock for scheduling.

6. Continuously check processor status and memory circuits for abnormal operation.

7. Controller to assume predetermined failure mode and generate alarm notification upon detection of abnormal operation.

8. Communication with other network devices to be based on assigned protocol.

C. Communication:

1. Controller to reside on a BACnet network using ISO 8802-3 (ETHERNET) Data

Link/Physical layer protocol.

2. Perform routing when connected to a network of custom application and application specific controllers.

3. Provide service communication port for connection to a portable operator's terminal or hand held device with compatible protocol.

D. Anticipated Environmental Ambient Conditions:

1. Outdoors and/or in Wet Ambient Conditions:

a. Mount within waterproof enclosures.

b. Rated for operation at 40 to 150 degrees F.

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c. Conditioned Space:

1) Mount within dustproof enclosures.

2) Rated for operation at 32 to 120 degrees F.

E. Provisions for Serviceability:

1. Diagnostic LEDs for power, communication, and processor.

2. Make all wiring connections to field removable, modular terminal strips, or to a termination card connected by a ribbon cable.

F. Memory: In the event of a power loss, maintain all BIOS and programming information for a minimum of 72 hours.

G. Power and Noise Immunity:

1. Maintain operation at 90 to 110 percent of nominal voltage rating.

2. Perform orderly shutdown below 80 percent of nominal voltage.

3. Operation protected against electrical noise of 5 to 120 Hz and from keyed radios up to 5

W. at 3 feet.

2.4 APPLICATION SPECIFIC CONTROLLERS

A. General:

1. Not fully user programmable, microprocessor based controllers dedicated to control specific equipment.

2. Customized for operation within the confines of equipment served.

3. Communication with other network devices to be based on assigned protocol.

B. Communication:

1. Controller to reside on a BACnet network using MS/TP Data Link/Physical layer protocol.

2. Provide service communication port for connection to a portable operator's terminal or hand held device with compatible protocol.

C. Anticipated Environmental Ambient Conditions:

1. Outdoors and/or in Wet Ambient Conditions:

a. Mount within waterproof enclosures.

b. Rated for operation at 40 to 150 degrees F.

c. Conditioned Space:

1) Mount within dustproof enclosures.

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2) Rated for operation at 32 to 120 degrees F.

D. Provisions for Serviceability:

1. Diagnostic LEDs for power, communication, and processor.

2. Make all wiring connections to field removable, modular terminal strips, or to a termination card connected by a ribbon cable.

E. Memory: In the event of a power loss, maintain all BIOS and programming information for a minimum of 72 hours.

F. Power and Noise Immunity:

1. Maintain operation at 90 to 110 percent of nominal voltage rating.

2. Perform orderly shutdown below 80 percent of nominal voltage.

3. Operation protected against electrical noise of 5 to 120 Hz and from keyed radios up to 5

W at 3 feet.

2.5 INPUT/OUTPUT INTERFACE

A. Hardwired inputs and outputs tie into the DDC system through building, custom application, or application specific controllers.

B. All Input/Output Points:

1. Protect controller from damage resulting from any point short-circuiting or grounding and from voltage up to 24 volts of any duration.

2. Provide universal type for building and custom application controllers where input or output is software designated as either binary or analog type with appropriate properties.

C. Binary Inputs:

1. Allow monitoring of On/Off signals from remote devices.

2. Provide wetting current of 12 mA minimum, compatible with commonly available control devices and protected against the effects of contact bounce and noise.

3. Sense dry contact closure with power provided only by the controller.

D. Pulse Accumulation Input Objects: Conform to all requirements of binary input objects and accept up to 10 pulses per second.

E. Analog Inputs:

1. Allow for monitoring of low voltage 0 to 10 VDC, 4 to 20 mA current, or resistance signals

(thermistor, RTD).

2. Compatible with and field configurable to commonly available sensing devices.

F. Binary Outputs:

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1. Used for On/Off operation or a pulsed low-voltage signal for pulse width modulation control.

2. Outputs provided with three position (On/Off/Auto) override switches.

3. Status lights for building and custom application controllers to be selectable for normally open or normally closed operation.

G. Analog Outputs:

1. Monitoring signal provides a 0 to 10 VDC or a 4 to 20 mA output signal for end device control.

2. Provide status lights and two position (AUTO/MANUAL) switch for building and custom application controllers with manually adjustable potentiometer for manual override on building and custom application controllers.

3. Drift to not exceed 0.4 percent of range per year.

H. Tri State Outputs:

1. Coordinate two binary outputs to control three point, floating type, electronic actuators without feedback.

2. Limit the use of three point, floating devices to the following zone and terminal unit control applications:

a. VAV terminal units.

b. Duct mounted heating coils.

3. Control algorithms run the zone actuator to one end of its stroke once every 24 hours for verification of operator tracking.

I. System Object Capacity:

1. System size to be expandable to twice the number of input output objects required by providing additional controllers, including associated devices and wiring.

2. Hardware additions or software revisions for the installed operator interfaces are not to be required for future, system expansions.

2.6 POWER SUPPLIES AND LINE FILTERING

A. Power Supplies:

1. Provide UL listed control transformers with Class 2 current limiting type or over-current protection in both primary and secondary circuits for Class 2 service as required by the

NEC.

2. Limit connected loads to 80 percent of rated capacity.

3. Match DC power supply to current output and voltage requirements.

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4. Unit to be full wave rectifier type with output ripple of 5.0 mV maximum peak to peak.

5. Regulation to be 1 percent combined line and load with 100 microsecond response time for 50 percent load changes.

6. Provide over-voltage and over-current protection to withstand a 150 percent current overload for 3 seconds minimum without trip-out or failure.

7. Operational Ambient Conditions: 32 to 120 degrees F.

8. EM/RF meets FCC Class B and VDE 0871 for Class B and MIL-STD 810 for shock and vibration.

9. Line voltage units UL recognized and CSA approved.

B. Power Line Filtering:

1. Provide external or internal transient voltage and surge suppression component for all workstations and controllers.

2. Minimum surge protection attributes:

a. Dielectric strength of 1000 volts minimum.

b. Response time of 10 nanoseconds or less.

c. Transverse mode noise attenuation of 65 dB or greater.

d. Common mode noise attenuation of 150 dB or greater at 40 to 100 Hz.

2.7 LOCAL AREA NETWORK (LAN)

A. Provide communication between control units and operator station(s) over local area network

(LAN).

B. LAN Capacity: Not less than 60 stations or nodes.

C. Break in Communication Path: Alarm and automatically initiate LAN reconfiguration.

D. LAN Data Speed: Minimum 2500 Kb.

E. Communication Techniques: Allow interface into network by multiple operation stations and by auto-answer/auto-dial modems. Support communication over telephone lines utilizing modems.

F. Transmission Median: Fiber optic or single pair of solid 24 gauge twisted, shielded copper cable.

G. Network Support: Time for global point to be received by any station, shall be less than 3 seconds. Provide automatic reconfiguration if any station is added or lost. If transmission cable is cut, reconfigure two sections with no disruption to system's operation, without operator intervention.

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2.8 CONTROLLER SOFTWARE

A. Supervisory Software Manufacturer: Tridium Niagara 4

B. All applications reside and operate in the system controllers and editing of all applications occurs at the operator workstation.

C. System Security:

1. User access secured via user passwords and user names.

2. Passwords restrict user to the objects, applications, and system functions as assigned by the system manager.

3. User Log On/Log Off attempts are recorded.

4. Automatic Log Off occurs following the last keystroke after a user defined delay time.

D. Object or Object Group Scheduling:

1. Weekly Schedules Based on Separate, Daily Schedules:

a. Include start, stop, optimal stop, and night economizer.

b. 10 events maximum per schedule.

c. Start/stop times adjustable for each group object.

E. Provide standard application for equipment coordination and grouping based on function and location to be used for scheduling and other applications.

F. Alarms:

1. Binary object is set to alarm based on the operator specified state.

2. Analog object to have high/low alarm limits.

3. All alarming is capable of being automatically and manually disabled.

4. Alarm Reporting:

a. Operator determines action to be taken for alarm event.

b. Alarms to be routed to appropriate workstation.

c. Reporting Options:

G. Maintenance Management: System monitors equipment status and generates maintenance messages based upon user-designated run-time limits.

H. Sequencing: Application software based upon specified sequences of operation in Section 23

0993.

I. PID Control Characteristics:

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1. Direct or reverse action.

2. Anti-windup.

3. Calculated, time-varying, analog value, positions an output or stages a series of outputs.

4. User selectable controlled variable, set-point, and PED gains.

J. Staggered Start Application:

1. Prevents all controlled equipment from simultaneously restarting after power outage.

2. Order of equipment startup is user selectable.

K. Energy Calculations:

1. Accumulated instantaneous power or flow rates are converted to energy use data.

2. Algorithm calculates a rolling average and allows window of time to be user specified in minute intervals.

3. Algorithm calculates a fixed window average with a digital input signal from a utility meter defining the start of the window period that in turn synchronizes the fixed-window average with that used by the power company.

L. Anti-Short Cycling:

1. All binary output objects protected from short-cycling.

2. Allows minimum on-time and off-time to be selected.

M. On-Off Control with Differential:

1. Algorithm allows binary output to be cycled based on a controlled variable and set-point.

2. Algorithm to be direct-acting or reverse-acting incorporating an adjustable differential.

N. Run-Time Totalization:

1. Totalize run-times for all binary input objects.

2. Provides operator with capability to assign high run-time alarm.

2.9 HVAC CONTROL PROGRAMS

A. General:

1. Support Inch-pounds and SI (metric) units of measurement.

2. Identify each HVAC Control system.

B. Optimal Run Time:

1. Control start-up and shutdown times of HVAC equipment for both heating and cooling.

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2. Base on occupancy schedules, outside air temperature, seasonal requirements, and interior room mass temperature.

3. Start-up systems by using outside air temperature, room mass temperatures, and adaptive model prediction for how long building takes to warm up or cool down under different conditions.

4. Use outside air temperature to determine early shut down with ventilation override.

2.10 PROGRAMMING APPLICATION FEATURES

A. Trend Point:

1. Sample up to 6 points, real or computed, with each point capable of collecting samples at intervals specified in minutes, hours, days, or month.

2. Output trend logs as line graphs or bar graphs. Output graphic on terminal, with each point for line and bar graphs designated with a unique pattern, vertical scale either actual values or percent of range, and horizontal scale time base. Print trend logs up to 12 columns of one point/column.

B. Alarm Messages:

1. Allow definition of minimum of 50 messages, each having minimum length of 180 characters for each individual message.

2. Assign alarm messages to system messages including point's alarm condition, point's off-normal condition, totalized point's warning limit, hardware elements advisories.

3. Output assigned alarm with "message requiring acknowledgments".

4. Operator commands include define, modify, or delete; output summary listing current alarms and assignments; output summary defining assigned points.

C. Weekly Scheduling:

1. Automatically initiate equipment or system commands, based on preselected time schedule for points specified.

2. Provide program times for each day of week, per point, with one minute resolution.

3. Automatically generate alarm output for points not responding to command.

4. Provide for holidays, minimum of 100 consecutive holidays.

5. Output summary: Listing of programmed function points, associated program times, and respective day of week programmed points by software groups or time of day.

D. Interlocking:

1. Permit events to occur, based on changing condition of one or more associated master points.

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2. Binary contact, high/low limit of analog point or computed point shall be capable of being utilized as master. Same master may monitor or command multiple slaves.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify existing conditions before starting work.

B. Verify that conditioned power supply is available to the control units and to the operator work station.

C. Verify that field end devices, wiring, and pneumatic tubing is installed prior to installation proceeding.

3.2 PROGRAMING

A. Include operating system programming of software capability specified to provide:

1. Set-up of system I/O capability, operator access as defined by the User, database creation and support.

2. Graphic Display-Systems:

a. Update existing color graphics providing menu-generated flow charting of each building process using background graphics, standard and user defined symbols and dynamic variables.

b. Provide flow charting for each system indicating all available points.

c. Indicate setpoint condition status by changing color, flashing. Provide flow charting for each system indicating all available points.

3. Graphic Displays- Floor Plans:

a. Provide building floor plan graphics with thermographics or temperature readouts and a change in color during alarms.

b. Show actual locations of equipment, and thermostats on the graphics.

4. Equipment Runtime monitoring.

B. Include Load Control and HVAC programming of software to provide:

1. System and equipment operating to specified Sequence of Operation:

2. Start-stop Optimization.

3. Night set-up/set-back of temperature set-points as directed by User.

C. Include Application system programming of software capability specified to provide:

1. Trend logging:

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2. Logging, reporting and graphing of user defined system trends on disk file and printer as directed by user.

3. Organize data in each trend logs to facilitate documenting system operation in compliance with Sequence of Operation.

4. Alarms: Logging, reporting and printing of user defined system alarms on disk file and printer as directed by user.

5. Scheduling:

a. Program user defined system scheduling of occupied times as directed by user.

b. Implement optimized starting and stopping for building warm-up/cool-down before occupancy.

c. Program user defined system scheduling as directed by user.

3.3 INSTALLATION

A. Install control units and other hardware in position on permanent walls where accessible for inspection, maintenance and repair and not subject to excessive vibration.

B. Identification:

1. Nameplates: Identify all sensors mounted in mechanical rooms using device ID and number from control drawings with permanent label mounted adjacent to device.

Nameplates shall be engraved plastic laminate with uppercase black letters on a white field, 1/4 inch minimum height.

2. Mounting: Attach nameplates with epoxy cement or non-ferrous screws after final painting.

3. Conduit/Cable Markers:

4. Color coded, sunlight resistant cable ties.

5. Location: Install on all conduit and raceways exposed or above ceilings in a visible location at:

a. Connections to junction, pull boxes, or manholes. Label box cover with nominal system voltage, circuit number and panel identification legibly written with permanent marker.

b. Connections to equipment.

c. Each side of a wall, roof or floor penetration.

d. Along straight runs at 50 feet intervals.

e. At changes of direction.

f. Parallel Conduits: Group markers on each conduit in-line with the adjacent marker.

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6. Color: Baby Blue.

7. Color code cable with both ends identified with manufactured alpha-numeric self-adhesive vinyl tags, 3 mils thick, minimum, keyed to termination points.

C. Electrical wiring:

1. No splices between control panels are permitted.

2. All terminations of field wiring shall be to terminal strips.

3. Power wiring to control units shown on drawings is provided under Division 26. Provide conduit and conductors and power supplies and transformers to extend power to all supplemental control units.

4. Analog input and output cable shall be shielded with panel connection grounded to comply with Part 15, Sub-part J of FCC Rules and Regulations.

5. All Wiring materials and methods shall comply with Division 26 except:

a. Minimum wire size shall be 18 AWG(copper).

b. Conduit for concealed low voltage wiring above accessible ceilings may be omitted and plenum rated cable substituted.

D. Provide conduit and electrical wiring in accordance with Section 26 2717. Electrical material and installation shall be in accordance with appropriate requirements of Division 26.

3.4 MANUFACTURER'S FIELD SERVICES

A. Start and commission systems. Allow sufficient time for start-up and commissioning prior to placing control systems in permanent operation.

B. Provide start-up certificate in the format prescribed by the General Conditions.

3.5 DEMONSTRATION, TRAINING AND INSTRUCTIONS

A. Refer to Section 23 051023 0510- Demonstration, Training and Instructions for additional requirements.

B. Demonstrate a complete and operating system to the Owner.

END OF SECTION