SOW_-_Appendix_B.pdf

B1252 Boiler Replacement - Appendix B, References

The latest editions of the following codes, standards, and specifications are the minimum requirements for the mechanical systems work:

• UFC 3-401-01, Mechanical Engineering

• UFC 3-410-01, Heating, Ventilating, and Air-Conditioning Systems

• UFC 3-420-01, Plumbing Systems

• UFC 3-450-01, Noise and Vibration Control

• UFC 4-010-01, DoD Minimum Antiterrorism Standards for Buildings

• International Mechanical Code (IMC)

• International Plumbing Code (IPC)

• American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE)

• National Environmental Balancing Bureau (NEBB)

• National Fire Protection Association (NFPA)

• Energy.gov, reference to requirement to purchase specific thermal efficiency boilers o https://www.energy.gov/eere/femp/purchasing-energy-efficient-commercial-boilers

• FAFB Base Design Standards, Division 23 (included in this appendix, see next page)

FA462019QA203

SOW Appendix A

FAIRCHILD AIR FORCE BASE DESIGN STANDARDS 22 August 2016

DIVISION 23 – HEATING, VENTILATING, AND AIR CONDITIONING (HVAC) PAGE 1 OF 1

DIVISION 23 – HEATING, VENTILATING,

AND AIR CONDITIONING (HVAC)

BASE DESIGN STANDARDS

FAIRCHILD AIR FORCE BASE

WASHINGTON

DIVISION 23 – HEATING, VENTILATING, AND AIR-CONDITIONING (HVAC) DATA SHEET

SECTION 230000 – GENERAL REQUIREMENTS PAGE 1 OF 4

DIVISION 23 – HEATING, VENTILATING, AND AIR CONDITIONING

SECTION 230000 – GENERAL REQUIREMENTS

DATA SHEET

SECTION 230000 – GENERAL REQUIREMENTS

A. SECTIONAL INFORMATION

1. When developing specifications for this section, use the Fairchild Base Design Standards sectional information developed by the 92d Civil Engineer Squadron Engineering Flight.

Mechanical fire protection features for air handling, heating, ventilation, and exhaust systems must comply with the requirements of NFPA 90A, except as modified by UFC 3-600-01.

B. ENERGY MANAGEMENT AND CONTROL SYSTEM

1. Provide mechanical systems with electronic direct digital control (DDC) by interfacing with the existing Fairchild AFB central Energy Management and Control System (EMCS). See Section 230900.

C. LOAD PROFILE

1. Designs shall include a 24-hour heat/cooling load profile for the facility together with a profile of energy consumption requirements. Energy consumption requirements shall include annual energy and annual energy per square foot for space heating, space cooling, domestic hot water, and process loads.

D. LIFE CYCLE COST ANALYSIS

1. For new construction and major renovation where a large portion of HVAC equipment is being replaced, equipment shall be analyzed for life cycle cost effectiveness, as applicable but not limited to the following: ground source heat pumps, water source heat pumps on a hydronic loop, hydronic boilers, variable speed drives on pumps and fans, demand based ventilation, infrared radiant heat, evaporative heat with and without heat exchange, dedicated outdoor air systems, and heat recovery units.

E. NATURAL GAS

1. Natural gas is supplied by Avista Utilities and DESC under firm and interruptible rate schedules.

The on-base distribution system operates at 55 psig. The system is a combination of steel and polyethylene lines buried at a depth of approximately 30 inches. It is recommended that any connections to the steel lines be investigated to check for corrosion prior to final design or any construction. Future major additions to the system shall be sized and planned to provide a natural gas grid system for the base.

F. METERS

1. Provide meters for water, irrigation (as applicable), natural gas, and power and insure compatibility and connection with the base EMCS. See Sections 230900, 262713.10 30,

331233.00 30, and 335113.00 30.

G. HEATING SYSTEMS

1. Heat Sources: Fairchild AFB currently uses a combination of gas fired steam boilers, hot water boilers, unit heaters, and radiant heat located in each facility. All new facility and heating system renovation projects shall evaluate natural gas fired hydronic boilers, gas-fired infrared radiant heaters, ground source heat pumps, and/or water source heat pumps on a hydronic loop (as appropriate) based on lowest life cycle cost analysis. Gas fired stand-alone, or gas fired

SECTION 230000 – GENERAL REQUIREMENTS PAGE 2 OF 4

instantaneous and/or solar domestic hot water is preferred over electric. Where boilers are used, maximize the burner turndown ratio as allowed by minimum life cycle cost.

2. Boiler Piping: Heating hot water set points shall be capable of being reset based on outside air temperature.

3. Gas-fired infrared radiant heaters shall have ten (10) foot tube lengths with couplings to allow for ease of replacement. The first ten foot section attached at the burner shall be made of stainless steel.

H. COOLING SYSTEMS

1. Air-cooled chillers, and air-cooled condensing units shall be considered (as a minimum and as appropriate) on the basis of lowest life cycle cost analysis.

2. For chillers that utilize a flow switch for proving chill water flow, do not employ Variable Frequency Drives (VFD) on the chill water pumps. If a designer would like to propose another control method, which may include VFDs, then that method must be detailed in the chillers sequence of operation portion of the design documents for Fairchild AFB’s evaluation and approval.

3. All new equipment shall employ HFC refrigerants - Class II ODS refrigerants are not acceptable.

I. MECHANICAL SYSTEM SITING AND ROOM LAYOUT

1. All mechanical equipment shall be sited within the mechanical room or on-grade outside the facility - rooftop installations are not acceptable. When located outside, pad-mounted heat exchangers and compressors shall be screened in accordance with the Fairchild AFB Architectural Compatibility Plan and Division 32, Section 320000, Paragraph D. Equipment located outside shall have an enclosure with at least one 120V, 20 amp duplex electrical outlet mounted on/near the equipment.

2. Mechanical rooms shall be designed to provide maintenance personnel the space necessary to service the installed equipment and perform major system overhauls efficiently. Maintenance platforms shall be provided as necessary.

3. A source of clean water shall be available in the mechanical room. A connection, hose bib fitting with cap and lanyard, to the domestic water line is preferred.

4. Free space shall be provided to allow easy removal of fan shafts from air handling units, tube bundles from steam converters, changing of air filters, and other large items without removal of another system component.

5. For hydronic systems, removal of a component of equipment shall not require the removal of other equipment items or more than two fittings.

6. Do not mount electrical disconnects, VFDs, or similar devices where they will impede access to equipment. This includes mounting devices directly to the equipment when that location will impede access.

7. VFDs shall be installed at eye level in mechanical rooms. If distance to the mechanical room, available space in the mechanical room, or building type/design prevent the specified installation then the contractor must walk/talk a government representative through the proposed installation locations, and receive that representative’s approval prior to installation.

8. All mechanical equipment (not floor mounted) shall be accessible by stairs, platforms, or catwalks with a staging area to allow for maintenance, repair, and replacement of the largest component.

In instances were access via stairs, platforms, or catwalks is not reasonably achievable, then access via a lift will need to be maintained; this includes talking into account the placement of the equipment in relation to other existing systems (e.g. fire suppression, lighting, etc.). Unless specifically stated in the SOW, it will be the expectation of Fairchild AFB that the use of stairs, platforms, or catwalks is reasonably achievable and desired.

9. Pumps shall be less than 4 feet off the ground and accessible for maintenance/replacement.

SECTION 230000 – GENERAL REQUIREMENTS PAGE 3 OF 4

10. Floor slab for mechanical rooms shall have minimum slope of 1% and be provided with appropriate floor drainage connected to the sanitary sewer system. Provide housekeeping pads for pumps, boilers and floor mounted electrical equipment. Pads for other mechanical room equipment will be evaluated on a case by case basis.

11. All thermometers and other gauges shall be mounted to provide unobstructed view of dial face.

12. Condensate overflows and pressure reliefs shall be piped to within two (2) inches of floor drains and directed to allow any flows to dispose properly without creating excess liquid ponding.

13. Glycol system overflows and pressure reliefs shall be piped back to the glycol feed tank. If the new design or existing system does not include a glycol feed tank then overflows and pressure reliefs shall be piped to a suitable container that is accessible for empting its contents.

14. A copy of the mechanical and HVAC schematics shall be provided in booklet form and placed in the mechanical room.

15. All conduit and/or piping shall be fed to equipment from overhead.

16. The ventilation for HVAC systems serving conference rooms, training rooms and other spaces with variable occupancy shall be controlled using dual technology occupancy sensors.

J. DISTRIBUTION SYSTEM

1. Do not specify grooved pipe and fittings for heating and cooling systems.

2. Provide full port ball valves for isolation. All hydronic piping lines leaving the mechanical room, as well as any main line branches, shall have isolation valves installed – isolation valves shall be located in the mechanical room where possible.

3. Propylene glycol (40 percent) is preferred over nitrates for heating and cooling systems.

4. Diaphragm type expansion tanks are preferred over the bladder or compression type expansion tanks.

5. Spiro-vent air/dirt separators with flanged cleanout are preferred.

6. Bell and Gossett pumps are preferred.

7. Provide reheat coils on all VAVs. Do not specify fan-powered VAVs. Reheat coils shall have a minimum of 2 rows.

8. Provide sealed bearings for all fractional horsepower motors.

9. Compare systems using variable flow through coils at constant temperature via variable speed drives to systems with variable temperature at constant flow. Specify the system with the lowest life cycle cost. If flow control valves are used to balance a variable flow system, specify manual balancing valves.

10. Do not specify equipment that requires special software to operate, maintain, or troubleshoot. Do not install equipment that requires a separate connection to the Fairchild network

11. Boilers and chillers shall be monitored and enabled by EMCS but shall be controlled by the individual equipment package controls. Equipment alarm inputs to the EMCS controller and supply temperature resets from the EMCS system controller will be utilized to the greatest extent possible.

12. Special consideration shall be given to ease of service of distributed equipment. Filters and other routine service items shall be located in the most accessible locations. Mezzanine floor access is preferred over locations above ceilings, and locations above ceilings in hallways are preferred over locations inside individual or group office areas. At least 4 feet of free space shall be adjacent to any side of equipment that requires access for maintenance.

SECTION 230000 – GENERAL REQUIREMENTS PAGE 4 OF 4

13. For air handlers with bearings that require greasing, grease fittings shall be extended with copper tube back to the access panel/door if the fittings are not within an arm’s length of the access panel/door.

14. For VAV systems, a three way valve at the end of each loop and two way valves for the other VAV boxes are preferred over a three way valve at each VAV box.

15. For glycol filled systems that employ a glycol makeup tank, do not include a connection to makeup water and do not include a bypass feeder.

16. For hydronic systems a filtration system shall be employed – located upstream of the system’s pumps unless otherwise dictated by the filtration system manufacture.

K. REFRIGERANTS

1. The Contractor shall reclaim refrigerants and return them to the government.

L. TESTING

1. Provide for testing, adjusting, and balancing of air and water systems. The work shall be performed by an independent testing and balancing agency other than the mechanical contractor.

The testing and balancing agency shall be a subcontractor directly to the general contractor.

2. Provide for commissioning/acceptance testing of all building systems. Commissioning/ acceptance testing shall be done by an independent, certified testing agency subcontracted directly to the general contractor. The testing agency shall have a minimum of five years of experience conducting acceptance procedure testing of mechanical systems or in the commissioning of buildings.

M. OPERATIONS AND MAINTENANCE MANUALS

1. Operations and maintenance manuals shall be furnished for all mechanical systems (as part of the overall O&M manual requirement.)

N. TRAINING

1. Training and instruction will include adjustment, operation, and maintenance, including pertinent safety requirements of the equipment and systems specified. Orient the training specifically to the system installed. For EMCS, a minimum of 4 hours of on-site training for up to 12 HVAC/Controls personnel is required. In addition, a minimum of 8 hours training for EMCS operators and controls technicians will be provided. Instructors shall be thoroughly familiar with the subject matter they are to teach. Training manuals shall be provided which describe in detail the data included in each training program. The manuals shall also include an agenda and defined objectives for each lesson. At a minimum, the training manuals shall include a mechanical systems diagram and control system schematic. Training and manuals shall be provided no later than 10 days prior to the scheduled training. Training presentations will be mandatory. Unplanned, impromptu sessions do not constitute an acceptable training program.

END OF SECTION 230000

SECTION 230900 – INSTRUMENTATION AND CONTROL FOR HVAC EMCS PAGE 1 OF 4

DIVISION 23 – HEATING, VENTILATING, AND AIR CONDITIONING

SECTION 230900 – INSTRUMENTATION AND CONTROL FOR HVAC

ENERGY MANAGEMENT AND CONTROL SYSTEM (EMCS)

DATA SHEET

SECTION 230900 – INSTRUMENTATION AND CONTROL FOR HVAC

A. ENERGY MANAGEMENT AND CONTROL SYSTEM (EMCS)

1. General

a. Sequences of operations guidance shall be provided and are required on all systems.

b. All installations shall communicate with the central EMCS office and be stand-alone operable for all programmed functions in the case of communications loss with the central computer.

Override control of functions shall be possible from the central EMCS computer center.

Communications shall therefore include alarm reporting, override control when necessary, and the capability of gathering trending summaries on system points.

c. EMCS shall use native BACnet architecture as referenced by the latest version of ANSI/ASHRAE Standard 135. The communication between application controllers shall be BACnet MS/TP.

d. Provide EMCS control of all systems on the basis of distributed controls using intelligent direct digital controllers (DDC). The existing approved EMCS is the Alerton System.

e. The contractor shall return all removed/demolished electronic HVAC controls to the government.

f. All fans, including exhaust fans, shall be integrated into the single point EMCS shelter-in-place shutdown switch located in the main fire department control room. When the switch is activated, all fans affecting occupied areas shall be shutdown. This includes fan powered VAV boxes. Essentially, if it has a fan and moves air, then it shall shutdown when the shelter-in-place switch is activated

2. Facility Environmental System Control

a. Facility environmental system control shall be accomplished via the EMCS installation programming and hardware. Do not specify a traditional pneumatic control system installation with an additional requirement for EMCS interface. Controls shall be electronic;

sequences shall be executed by the EMCS DDC equipment using electric motor operated actuators. Pneumatic actuators may be specified based upon application requirements or economic justification with 92 Civil Engineer Squadron Engineering Flight approval.

3. Set points

a. Specifications shall require that all set points and similar control parameters be capable of being changed or altered from the EMCS central computer to facilitate troubleshooting. Do not install set point values in permanent memory that require a site visit by maintenance personnel for alteration.

4. Graphics

a. All graphics will display real time readings. Web based access using Internet Explorer from any computer located on the Fairchild CE VLAN is required.

b. Provide a graphic that shows the floor plan of the building. The floor plan graphic will be the home page for each building and will display the temperature and set point for each control zone. There will be a link to the appropriate equipment page from each temperature/set point display on the floor plan. There will also be a link to all other mechanical equipment graphics

SECTION 230900 – INSTRUMENTATION AND CONTROL FOR HVAC EMCS PAGE 2 OF 4

from the home page. There will be a link from all graphics back to the home page. The home page will have a link to the EMCS home page. The outside air temperature will be displayed on the building home page.

c. VAV graphics will have a link to the AHU that supplies air to the VAV. Provide a VAV status page that displays all VAV temperatures, set points, flow set points, flow, discharge air temperature, and re-heat valve position. Each VAV page will link to the VAV status page.

The VAV status page will also have links to each VAV page.

d. Provide graphics that shows a quickview of selected equipment for the entire EMCS system.

Provide a separate graphic for AHU status, hot water pumps status, hot water supply temps, chilled water pumps status, chilled water supply temps, domestic hot water pumps status, domestic hot water temps, freeze stats status, flood alarm sensors status, Honeywell owned boiler alarms status, Honeywell owned boilers steam pressure and Fairchild owned boiler alarms status. Animators can be used but are not required. A simple status indication is acceptable. The quickview status pages shall be linked to the EMCS home page and there shall be links between all of the quickview status pages.

e. All mechanical equipment graphics will show an accurate representation of the equipment and will have real time readings of all hardware points and set points. Equipment actuators will show the position in a 0-100% format and may also show the actual analog output value.

The actuator spring range and normal default position will also be annotated. EMCS operators shall have the ability to change set points and schedules and over-ride all hardware points from the graphical interface.

f. All point trends will be accessible through links on the page that is displaying that value.

5. Required Specifications

a. The following specifications for EMCS equipment shall be employed for all designs.

b. All new controls shall be the Alerton system. The existing Fairchild AFB Energy Management Control System is used to monitor, schedule, alarm (routed to all workstations and via paging system), program, and trouble-shoot over 120 buildings. An existing server-client network supports technicians in the field for this work.

c. Communications over the Fairchild AFB metropolitan area network using a T1 connection at

1.5 Mbps up to and including 100 Mbps shall be required. Twisted-Pair 10Base-T cabling systems shall be supported. Field access to area controllers and application specific controllers using existing laptops shall be required; to include full access to the entire installed programming.

d. The Network Communications Module that provides Ethernet connectivity for the Global Level Controller must be a dedicated device, specifically manufactured for that purpose. A category 5 rated Ethernet compatible network cable shall be run from the installed building networking equipment to the EMCS DDC Global Controller. The cable shall be terminated and plugged into the equipment at both ends. Materials and installation provided by Division 27.

e. Existing Server-Client-Paging System: The EMCS shall fully and seamlessly support the existing EMCS System Server and Operator Workstation software that is residing on the Fairchild Server-Client-paging Network. EMCS Systems requiring additional operator’s terminals, gateways, or routers shall not be acceptable.

f. The EMCS shall be able to send automated alpha-numeric alarm pages from a single paging unit located in the telephone switch room next to the EMCS office in building 2451. The system shall have the ability to send a single alarm message to multiple pagers using the Fairchild paging system and/or email paging protocols.

g. System I/O Points: The EMCS operators shall be able to read/write to all points and programming in the area and applications specific equipment remotely from the system

SECTION 230900 – INSTRUMENTATION AND CONTROL FOR HVAC EMCS PAGE 3 OF 4

server in the EMCS office. The EMCS operators shall have the ability to access, modify all program/point parameters, and install the modified programs in the controllers.

6. Field Hardware

a. Outside Air Temperature (OAT) sensors – OAT sensors shall be installed with a sun shade.

Mount the sensor in the shade on the north wall of the building, approximately 10 feet above the ground level. These sensors are to be sensing actual outside air, not air inside the entrance of a section of ductwork.

b. Current Transducers (CT) – All status inputs on motors shall be through adjustable CTs. Do not install Differential Pressure sensors for status inputs. CTs on belt driven fans shall have the ability to recognize a broken belt as an off condition.

c. Variable Frequency Drives (VFD) – Install VFDs with BACnet interface cards in lieu of mechanical vanes. The interface cards will communicate on the MS/TP communication trunk at a minimum of 38.4 kbs. Fairchild prefers ABB variable frequency drives.

d. Meters – Meters are required at for all utility system renovations exceeding $200K, new MILCON, major renovation, Energy Conservation Investment Program projects, and Energy Saving Performance Contract projects. EMCS controls contractor shall provide meters to insure compatibility. Totalizing capability shall reside at the meter for electric meters or at the metering controller for gas and water meters so that consumption is tracked even if connectivity to EMCS is lost. Electric meters will have a BACnet communication interface and will be installed as a BACnet controller on the MS/TP loop. Fairchild prefers Veris power meters with a BACnet interface board.

e. Freezestats are required on air handling units with heating coils and outside air sources.

Freezestats shall be hard wired to shutdown fan motors and have alarm inputs to EMCS.

f. Emergency air distribution shutoff buttons are required in all facilities to shut down the air distribution and exhaust systems throughout the building and close all dampers leading to the outside. The button(s) shall be wired as an input to an EMCS DDC controller. The EMCS system will shut down all fans (air handlers, exhaust, heaters, VAV fans, etc.) affecting occupied areas when the push button(s) are activated. The button(s) will be push-pull type with a cover and labeled. The buttons shall be mounted in a common area accessible to all personnel. A single button is acceptable to shut down all equipment. Multiple buttons can be used if needed due to the layout of the building.

g. Provide a status input from the building fire alarm panel. HVAC equipment supplying air to occupied areas will be shut down when the fire alarm panel is in alarm.

h. Air quality sensors are preferred for ventilation control in vehicle bays.

i. VAV Wall Sensors – Wall sensors shall have occupant set point control ability for possible future use. Zone temperature set points will be set in software. Wall sensors will have an override button to place the system in occupied mode.

j. VAV’s will have discharge air sensors installed.

k. System actuators will be 2-10 VDC analog. This includes VAV dampers and reheat valves.

Floating point actuators will not be used.

l. Variable flow systems shall have flow measurement of total actual flow through the system, corresponding to temperature measurement so as to facilitate energy balances as a diagnostic tool. For example, VAV systems shall have flow measurement at the air handling unit discharge and corresponding to discharge temperature measured, as well as at the VAV boxes; and hydronic systems with variable speed drives shall have flow measurement corresponding to system supply or system return temperature measurements.

m. Boilers shall operate on their own manufacturer installed controls. Boilers shall have the ability to receive a remote enable command and analog input signal to reset the boiler controller hot water set point from the building EMCS DDC controller. Boilers shall have an

SECTION 230900 – INSTRUMENTATION AND CONTROL FOR HVAC EMCS PAGE 4 OF 4

alarm point that is sent to the DDC controller. These signals shall be hard wired to the DDC controller.

n. Chillers shall operate on their own manufacturer installed controls. Chillers shall have the ability to receive a remote enable command and analog input signal to reset the chiller controller chilled water set point from the building EMCS DDC controller. Chillers shall have an alarm point that is sent to the DDC controller. These signals shall be hard wired to the DDC controller.

7. Submittals

a. Coordinate with Fairchild AFB 92 Civil Engineer Squadron Engineering Flight (CENM) Mechanical Engineering section during design process.

b. As-built and Operations and Maintenance (O&M) Manual information must be available to the EMCS shop through the Contracting Officer at final acceptance. This stage is crucial to the orderly opening of a new facility.

8. O&M Manual Minimum Content Requirements for EMCS

a. Flow charts of control sequences shall be provided as a part of the O&M submittal. Each point shall be indexed to show association with the control sequences.

b. As-built drawings shall show controller location, terminal numbers in the EMCS controller, and any equipment such as motor starters, air- conditioning compressors, etc.

c. Catalog cuts included in the O&M Manual shall be marked with indicating arrows to show the specific installed item.

d. Service and calibration information for all installed equipment.

e. A detailed contents and format instruction for O&M Manuals is available on request.

f. Commissioning report to include verification that all inputs and outputs operate and read accurately on a laptop at the building controller.

g. Provide valve and actuator schedules with operating ranges and default positions.

h. Provide two (2) 11” X 17” hardcopies and one (1) electronic copy of the control drawings.

One hardcopy for the building control cabinet and one hard and one electronic copy for the EMCS Operators. All hard copies shall be in 8-1/2” x 11” 3-ring binders.

9. Installation

a. Place all equipment in service accessible area such as a locked cabinet in mechanical room.

Coordinate placement of cabinets with other crafts requirements.

b. Remotely located equipment must be readily accessible.

c. Provide for at least 25% spare point connections in controllers located in Mechanical Rooms.

d. Vendor must provide exchange and repair service for all components.

e. Install latest version of system software on the EMCS computer(s).

10. Commissioning

a. The contractor shall field verify that all physical points are working properly and that the software routines are operating the controlled equipment according to design. Provide documentation showing that all hardware points have been tested. Testing shall include starting and stopping all binary output points, verify correct change of state of all binary input points, modulating the full range of all analog output points and calibrating all analog input points.

END OF DATA SECTION 230900

DIVISION 23 – HEATING, VENTILATING, AND AIR-CONDITIONING (HVAC) FAIRCHILD SPECIFICATION

SECTION 230900 – INSTRUMENTATION AND CONTROL FOR HVAC EMCS PAGE 1 OF 32

DIVISION 23 – HEATING, VENTILATING, AND AIR CONDITIONING

SECTION 230900 – INSTRUMENTATION AND CONTROL FOR HVAC

ENERGY MANAGEMENT AND CONTROL SYSTEM (EMCS)

FAIRCHILD SPECIFICATION

NOTE: When developing specifications for this section, use this specification developed by the 92d Civil Engineer Squadron Engineering Flight and edit for the specific project.

Brackets are used in the text to indicate designer choices or locations where text must be supplied by the designer.

SECTION 230900 – INSTRUMENTATION AND CONTROL FOR HVAC

PART 1 GENERAL

1.01 WORK INCLUDED

A. Furnish a totally native BACnet-based system based on a distributed control system in accordance with this specification. The operator’s workstation, all building controllers, application controllers, and all input/output devices shall communicate using the protocols and network standards as defined by the latest version of ANSI/ASHRAE Standard 135, BACnet. In other words, all workstations and controllers, including unitary controllers, shall be native BACnet devices. No gateways shall be used for communication to controllers installed under this section. Gateways may be used for communication to existing systems or to systems installed under other sections.

B. Provide all necessary BACnet-compliant hardware and software to meet the system’s functional specifications

C. Prepare individual hardware layouts, interconnection drawings, and software configuration from project design data.

D. Implement the detailed design for all analog and binary objects, system databases, graphic displays, logs, and management reports based on control descriptions, logic drawings, configuration data, and bid documents.

E. Design, provide, and install all equipment cabinets, panels, data communication network cables needed, and all associated hardware.

F. Provide and install all interconnecting cables between supplied cabinets, application controllers, and input/output devices.

G. Provide complete manufacturer’s specifications for all items that are supplied. Include vendor name of every item supplied.

H. Provide supervisory specialists and technicians at the job site to assist in all phases of system installation, startup, and commissioning.

I. Provide a comprehensive operator and technician training program as described herein.

J. Provide as-built documentation, operator’s terminal software, diagrams, and all other associated project operational documentation (such as technical manuals) on approved media, the sum total of which accurately represents the final system.

K. Provide new sensors, dampers, valves, and install only new electronic actuators. No used components shall be used as any part or piece of installed system. [This paragraph can be revised to re-use existing Sensors/Valves/Actuators in this paragraph. You may want to specify where to look on the attached point list for the description of new or re-used devices.]

SECTION 230900 – INSTRUMENTATION AND CONTROL FOR HVAC EMCS PAGE 2 OF 32

1.02 SYSTEM DESCRIPTION

A. Distributed logic control system complete with all software and hardware functions shall be provided and installed. System shall be completely based on the latest version of ANSI/ASHRAE Standard 135, BACnet. This system is to control all mechanical equipment, including all unitary equipment such as VAV boxes, heat pumps, fan-coils, AC units, etc. and all air handlers, boilers, chillers, and any other listed equipment using native BACnet-compliant components. Non-BACnet-compliant or proprietary equipment or systems (including gateways) shall not be acceptable and are specifically prohibited. [Add irrigation, lighting control, any other monitoring in this paragraph if desired in project to make sure it is included in project bids and delivered by contractors. Also make sure that provision and installation of these additional control products are coordinated in the other mechanical and electrical sections.]

B. Operator’s workstation software shall use the latest applicable version of Windows as the computer operating system. The Energy Management and Control System (EMCS) application program shall be written to communicate specifically utilizing BACnet protocols.

Software functions delivered on this project shall include password protection, scheduling (including optimum start), alarming, logging of historical data, full graphics including animation, after-hours billing program, demand limiting, full suite of field engineering tools including graphical programming and applications. Systems using operating systems other than that described above are strictly prohibited. All software required to program application specific controllers and all field level devices and controllers will be left with the Government.

All software passwords required to program and make future changes to the system will also become the property of the Government. All software required to make any program changes anywhere in the system along with scheduling, and trending applications will be left with the Government. All software passwords required to program and make future changes to schedules, trends and related program changes will also become the property of the Government. All software required for all field engineering tools including graphical programming and applications will be left with the Government. All software passwords required to program and make future changes to field engineering tools including graphical programming and applications will be left with the Government.

C. Building controllers shall include complete energy management software, including scheduling building control strategies with optimum start and logging routines. All energy management software and firmware shall be resident in field hardware and shall not be dependent on the operator’s terminal. Operator’s terminal software is to be used for access to field-based energy management functions only. Provide zone-by-zone direct digital logic control of space temperature, scheduling, runtime accumulation, equipment alarm reporting, and override timers for after-hours usage. All application controllers for every terminal unit (VAV, HP, UV, etc.) air handler, all central plant equipment, and any other piece of controlled equipment shall be fully programmable. Application controllers shall be mounted next to controlled equipment and communicate with building controller via BACnet LAN.

D. Room sensors with digital readouts preferred in occupied areas. Room sensors shall be provided with digital readouts that allow the user to view room temperature, view outside air temperature, adjust the room set point within preset limits and set desired override time.

Initial set point shall be pre-determined by FAFB. Provide enable/disable check box on screen with field adjustment initially disabled. Include all necessary wiring and firmware such that room sensor includes field service mode. Field service mode shall allow technician to balance VAV zones and access any parameter in zone controller without additional laptop or handheld computer. [If digital readout is not desired replace with the following: Room sensors shall be architecturally pleasing, sense temperature, allow tenant to override system and adjust temperature set point.]

1.03 APPROVED MANUFACTURERS

A. The base bid shall be the BACtalk system from Alerton.

SECTION 230900 – INSTRUMENTATION AND CONTROL FOR HVAC EMCS PAGE 3 OF 32

1.04 QUALITY ASSURANCE

A. [The bidder shall be regularly engaged in the design, installation and maintenance of BAS systems and shall have demonstrated technical expertise and experience in the design, installation and maintenance of BAS systems similar in size and complexity to this project. Bidders shall provide a list of at least 3 projects, similar in size and scope to this project completed within the past 3 years.]

B. The BAS system shall be designed and installed, commissioned and serviced by factory trained personnel. Manufacturer shall have an in-place support facility within 2 hours response time of the site with technical staff, spare parts inventory and necessary test and diagnostic equipment. The control contractor shall provide an experienced project manager for this work, responsible for direct supervision of the design, installation, start up and commissioning of the BAS system. All control drawings, submittal package, graphics, and programming shall be accomplished by local technicians and project managers, so that all changes will be accurately reflected, and that any modifications may be made expeditiously in the field.

C. Materials and equipment shall be the catalogued products of manufacturers regularly engaged in production and installation of automatic temperature control systems and shall be manufacturer's latest standard design that complies with the specification requirements.

D. All BAS peer-to-peer network controllers, central system controllers and local user displays shall be UL Listed under Standard UL 916, category PAZX. All electronic equipment shall conform to the requirements of FCC Regulation, Part 15, Governing Radio Frequency Electromagnetic Interference and be so labeled.

E. Control system shall be engineered, programmed and supported completely by the representative’s local office that must be within 100 miles of project site.

1.05 REFERENCE STANDARDS

A. The latest edition of the following standards and codes in effect and amended as of supplier's proposal date, and any applicable subsections thereof, shall govern design and selection of equipment and material supplied:

1. American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE).

2. ANSI/ASHRAE Standard 135-2001, BACnet.

3. Uniform Building Code (UBC), including local amendments.

4. UL 916 Underwriters Laboratories Standard for Energy Management Equipment. Canada and the US.

5. National Electrical Code (NEC).

6. FCC Part 15, Subpart J, Class A

7. EMC Directive 89/336/EEC (European CE Mark)

8. UL-864 UUKL listing for Smoke Controls for any equipment used in smoke control sequences

B. City, county, state, and federal regulations and codes in effect as of contract date.

C. Except as otherwise indicated the system supplier shall secure and pay for all permits, inspections, and certifications required for his work and arrange for necessary approvals by the governing authorities.

1.06 SUBMITTALS

A. Drawings

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1. The system supplier shall submit engineered drawings, control sequence, and bill of materials for approval.

2. Drawings shall be submitted in the following standard sizes: 11” x 17” (ANSI B).

3. Three complete sets (copies) of submittal drawings shall be provided.

4. All drawings shall be provided on a CD-ROM in an editable format of Visio or AutoCAD.

B. System Documentation

1. Include the following in submittal package:

a. System configuration diagrams in simplified block format.

b. All input/output object listings and an alarm point summary listing.

c. Electrical drawings that show all system internal and external connection points, terminal block layouts, and terminal identification.

d. Complete bill of materials, valve schedule and damper schedule.

e. Manufacturer's instructions and drawings for installation, maintenance, and operation of all purchased items.

f. Overall system operation and maintenance instructions—including preventive maintenance and troubleshooting instructions.

g. For all system elements—operator’s workstation(s), building controller(s), application controllers, routers, and repeaters,—provide BACnet Protocol Implementation Conformance Statements (PICS) as per ANSI/ASHRAE Standard 135-2001.

h. Provide complete description and documentation of any proprietary (non-BACnet) services and/or objects used in the system.

i. A list of all functions available and a sample of function block programming that shall be part of delivered system.

C. Project Management

1. The vendor shall provide a detailed project design and installation schedule with time markings and details for hardware items and software development phases. Schedule shall show all the target dates for transmission of project information and documents and shall indicate timing and dates for system installation, debugging, and commissioning.

D. BACnet Device Object Naming Conventions [Optional]

1. The BAS manufacturer’s representative shall submit a BACnet Device Object Naming Convention Plan (DONCP) to the Government and consulting engineer during the submittal process. The plan must be approved by the Government and consulting engineer prior to implementation. It is the responsibility of the BAS contractor to coordinate the DONCP with the Government and consulting engineer.

2. The DONCP shall be designed to eliminate any confusion between individual points in a facility/campus wide EMCS system. It will also be designed to allow for future expansion and consistency. Each device on a BACnet internetwork (including other manufacturer’s devices) must have a unique device instance. This is a major consideration when adding to an existing system or interconnecting networks. Thorough and accessible site documentation is critical.

3. A consistent object (point) naming convention shall be used to facilitate familiarity and operational ease across an eventual large campus or inventory of facilities. The following section is designed as recommendations only. It is the responsibility of the BAS contractor to coordinate the DONCP with the Government and consulting engineer.

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4. BACnet requires that all devices have a Device object name that is unique throughout the entire internetwork. To comply with this requirement all BACnet devices shall be configured with a Device Object Name that is based on the naming conventions described in this section. This includes all physical devices as well as any logical BACnet devices that are represented by gateways. The vendor shall coordinate with the Government staff to ensure that the correct names are used. Device Object Name properties shall support strings of at least 50 characters in length.

1.07 WARRANTY

A. Warranty shall cover all costs for parts, labor, associated travel, and expenses for a period of one year from completion of system acceptance.

B. Hardware and software personnel supporting this warranty agreement shall provide on-site or off-site service in a timely manner after failure notification to the vendor. The maximum acceptable response time to provide this service at the site shall be 24 hours Monday through Friday, 48 hours on Saturday and Sunday.

C. This warranty shall apply equally to both hardware and software.

1.08 RELATED WORK IN OTHER SECTIONS [Use this section to spell out those other areas of the specification that the control system contractor needs to review. This should include all contractual items and all areas that will interface with the control systems like lighting, irrigation, chillers, fire alarm, etc.]

A. Refer to Division 0 and Division 1 for related contractual requirements.

B. Refer to Section 230000 for General Mechanical Provisions.

C. Refer to Section 260000 for General Electrical Provisions.

PART 2 PRODUCTS

2.01 OPERATOR’S WORKSTATION

A. General structure of workstation interaction shall be a standard client/server relationship.

Server shall be used to archive data and store system database. Clients shall access server for all archived data. Each client shall include flexibility to access graphics from server or local drive. Server shall support a minimum of 50 clients simultaneously. (Server and operator’s workstation is existing.)

B. BACnet Conformance

1. Operator’s workstation shall as a minimum support Point-to-Point (PTP) and Ethernet BACnet LAN types. It shall communicate directly via these BACnet LANs as a native BACnet device. Operator’s terminal shall comply with the requirements of a BACnet conformance class 3 device and support all BACnet services necessary to provide the following BACnet functional groups:

a. Clock Functional Group

b. Event Response Functional Group

c. Time Master Functional Group

d. Device Communications

2. Please refer to section 22.2, BACnet Functional Groups, in the BACnet standard for a complete list of the services that must be directly supported to provide each of the functional groups listed above. All proprietary services, if used in the system, shall be thoroughly documented and provided as part of the submittal data. All necessary tools shall be supplied for working with proprietary information.

3. Standard BACnet object types accessed by the workstation shall include as a minimum:

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Calendar, Device, Event Enrollment, File, Notification Class, Program and Schedule object types. All proprietary object types, if used in the system, shall be thoroughly documented and provided as part of the submittal data. All necessary tools shall be supplied for working with proprietary information.

4. The Operator Workstation shall comply with Annex J of the BACnet specification for IP connections. This device shall use Ethernet to connect to the IP internetwork, while using the same Ethernet LAN for non-IP communications to other BACnet devices on the LAN.

Must support interoperability on wide area networks (WANs), metropolitan area networks (MANs), and campus area networks (CANs). Workstation shall support Foreign Device Registration to allow temporary workstation connection to IP network.

C. Displays

1. Operator’s workstation shall display all data associated with project as called out on drawings and/or object type list supplied. Graphic files shall be created using digital, full color photographs of system installation, AutoCAD or Visio drawing files of field installation drawings and wiring diagrams from as-built drawings. Operator’s workstation shall display all data using three-dimensional graphic representations of all mechanical equipment. System shall be capable of displaying graphic file, text, and dynamic object data together on each display and shall include animation. Information shall be labeled with descriptors and shall be shown with the appropriate engineering units. All information on any display shall be dynamically updated without any action by the user.

Workstation shall allow user to change all field-resident EMCS functions associated with the project, such as set points, weekly schedules, exception schedules, etc. from any screen no matter if that screen shows all text or a complete graphic display. This shall be done without any reference to object addresses or other numeric/mnemonic indications.

2. All displays and programming shall be generated and customized by the local EMCS supplier and installer. Systems requiring factory development of graphics or programming of DDC logic are specifically prohibited.

3. Binary objects shall be displayed as “ACTIVE/INACTIVE/NULL”. Text shall be justified left, right or center as selected by the user. Also, allow binary objects to be displayed as individual change-of-state graphic objects on the display screen such that they overlay the system graphic. Each binary object displayed in this manner shall be assigned up to three graphic files for display when the point is ON, OFF or in alarm. For binary outputs, toggle the object’s commanded status when the graphic item is selected with the system mouse. Similarly, allow the workstation operator to toggle the binary object’s status by selecting with the mouse a graphic of a switch or light, for example, which then displays a different graphic (such as an “ON” switch or lighted lamp). Additionally, allow binary objects to be displayed as an animated graphic. Animated graphic objects shall be displayed as a sequence of multiple graphics to simulate motion. For example: when a pump is in the OFF condition, display a stationary graphic of the pump. When the operator selects the pump graphic with the mouse, the represented object’s status is toggled and the graphic of the pump’s impeller rotates in a time-based animation. The operator shall be able to click on an animated graphical object or switch it from the OFF position to ON, or ON to OFF. Allow operator to change graphic file assignment and also create new and original graphics online. System shall be supplied with a library of standard graphics, which may be used unaltered or modified by the operator. Systems that do not allow customization or creation of new graphic objects by the operator (or with third-party software) shall not be allowed.

4. Analog objects shall be displayed with operator modifiable units. Analog input objects may also be displayed as individual graphic items on the display screen as an overlay to the system graphic. Each analog input object may be assigned a minimum of five graphic files, each with high/low limits for automatic selection and display of these graphics. As an example, a graphic representation of a thermometer would rise and fall in response to either the room temperature or its deviation from the controlling set point.

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Analog output objects, when selected with the mouse, shall be displayed as a prompted dialog (text only) box. Selection for display type shall be individual for each object. Analog object values may be changed by selecting either the “increase” or “decrease” arrow in the analog object spinner box without using the keypad.