Attach 10 Direct Digital Control (DDC) System for HVAC.pdf

NIST BOULDER B42 - Cooling Tower Capacity Upgrade

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DIRECT DIGITAL CONTROL (DDC) SYSTEM FOR HVAC

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Comply with the Maximo-Metasys Asset Naming Standard.

1.2 ACTION SUBMITTALS

A. Delegated-Design Submittal: For DDC system products and installation indicated as being delegated.

a. Include cover drawing with Project name, location.

b. Include a drawing index sheet listing each drawing number and title that matches information in each title block.

c. The control sequences shall be completed by the control’s contractor.

d. The controls contractor shall provide completed control sequence of operations to be reviewed by the COR.

e. Control drawings.

f. Contractor shall provide the required 120 Volt power for all panels unless noted otherwise on plans. Contractor shall coordinate source of power with COR.

1.3 CLOSEOUT SUBMITTALS

A. Operation and Maintenance Data: For DDC system to include in emergency, operation and maintenance manuals.

1. In addition to items specified in Section 017823 "Operation and Maintenance Data," include the following:

a. Project Record Drawings of as-built versions of submittal Shop Drawings provided in electronic PDF format.

b. Testing and commissioning reports and checklists of completed final versions of reports, checklists, and trend logs.

c. As-built versions of submittal Product Data.

d. Maximo-Metasys Asset Naming Standard

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1.4 WARRANTY

A. Manufacturer's Warranty: Manufacturer and Installer agree to repair or replace products that fail in materials or workmanship within specified warranty period.

1. Failures shall be adjusted, repaired, or replaced at no additional cost or reduction in service to Owner.

2. Include updates or upgrades to software and firmware if necessary, to resolve deficiencies.

a. Install updates only after receiving Owner's written authorization.

3. Warranty service shall occur during normal business hours and commence within 16 hours of Owner's warranty service request.

4. Warranty Period: One year(s) from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 DDC SYSTEM MANUFACTURERS

A. Johnson Controls

2.2 DDC SYSTEM DESCRIPTION

A. Microprocessor-based monitoring and control including analog/digital conversion and program logic. A control loop or subsystem in which digital and analog information is received and processed by a microprocessor, and digital control signals are generated based on control algorithms and transmitted to field devices to achieve a set of predefined conditions.

B. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

2.3 PERFORMANCE REQUIREMENTS

A. Surface-Burning Characteristics: Products installed in ducts, equipment, and return-air paths shall comply with ASTM E 84; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.

1. Flame-Spread Index: 25 or less.

2. Smoke-Developed Index: 50 or less.

http://www.specagent.com/LookUp/?ulid=9646&mf=04&src=wd

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2.4 ENCLOSURES

A. General Enclosure Requirements:

1. House each controller and associated control accessories in an enclosure. Enclosure shall serve as central tie-in point for control devices such as switches, transmitters, transducers, power supplies and transformers.

2. Include enclosure door with key locking mechanism. Key locks alike for all enclosures and include one pair of keys per enclosure.

B. Environmental Requirements:

1. Evaluate temperature and humidity requirements of each product to be installed within each enclosure.

2. Calculate enclosure internal operating temperature considering heat dissipation of all products installed within enclosure and ambient effects (solar, conduction and wind) on enclosure.

3. Where required by application, include temperature-controlled electrical heat to maintain inside of enclosure above minimum operating temperature of product with most stringent requirement.

4. Where required by application, include temperature-controlled ventilation fans with filtered louver(s) to maintain inside of enclosure below maximum operating temperature of product with most stringent requirement.

5. Include temperature-controlled cooling within the enclosure for applications where ventilation fans cannot maintain inside temperature of enclosure below maximum operating temperature of product with most stringent requirement.

6. Where required by application, include humidity-controlled electric dehumidifier or cooling to maintain inside of enclosure below maximum relative humidity of product with most stringent requirement and to prevent surface condensation within enclosure.

C. Wall Mounted NEMA 250, Types 4:

1. Enclosure shall be NRTL listed according to UL 508A.

2. Seam and joints are continuously welded and ground smooth.

3. Where recessed enclosures are indicated, include enclosures with face flange for flush mounting.

4. Externally formed body flange around perimeter of enclosure face for continuous perimeter seamless gasket door seal.

5. Finish enclosure with polyester powder coating that is electrostatically applied and then baked to bond to substrate.

6. Corner-formed door, full size of enclosure face, supported using multiple concealed hinges with easily removable hinge pins.

7. Removable internal panel with a white polyester powder coating that is electrostatically applied and then baked to bond to substrate.

8. Internal panel mounting studs with hardware, grounding hardware, and sealing washers.

9. Grounding stud on enclosure body.

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10. Thermoplastic pocket on inside of door for record Drawings and Product Data.

2.5 MAXIMO-METASYS ASSET NAMING STANDARD

1. Comply with the attached Maximo-Metasys Asset Naming Standard.

2.6 IDENTIFICATION

A. Control Equipment, Instruments, and Control Devices:

1. Self-adhesive label, Laminated acrylic or melamine plastic sign bearing unique identification.

a. Include instruments with unique identification identified by equipment being controlled or monitored, followed by point identification.

2. Letter size shall be as follows:

a. Operator Workstations: Minimum of 0.5 inch high.

b. Servers: Minimum of 0.5 inch high.

c. Printers: Minimum of 0.5 inch high.

d. DDC Controllers: Minimum of 0.5 inch high.

e. Gateways: Minimum of 0.5 inch high.

f. Repeaters: Minimum of 0.5 inch high.

g. Enclosures: Minimum of 0.5 inch high.

h. Electrical Power Devices: Minimum of 0.25 inch high.

i. UPS units: Minimum of 0.5 inch high.

j. Accessories: Minimum of 0.25 inch high.

k. Instruments: Minimum of 0.25 inch high.

l. Control Damper and Valve Actuators: Minimum of 0.25 inch high.

3. Legend shall consist of white lettering on black background.

4. Laminated acrylic or melamine plastic sign shall be engraved phenolic consisting of three layers of rigid laminate. Top and bottom layers are color-coded black with contrasting white center exposed by engraving through outer layer and shall be fastened with drive pins.

5. Instruments, control devices and actuators with Project-specific identification tags having unique identification numbers following requirements indicated and provided by original manufacturer do not require additional identification.

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PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates and conditions for compliance with requirements for installation tolerances and other conditions affecting performance of the Work.

1. Verify compatibility with and suitability of substrates.

B. Examine roughing-in for products to verify actual locations of connections before installation.

1. Examine roughing-in for instruments installed in piping to verify actual locations of connections before installation.

2. Examine roughing-in for instruments installed in duct systems to verify actual locations of connections before installation.

C. Examine walls, floors, roofs, and ceilings for suitable conditions where product will be installed.

D. Prepare written report, endorsed by Installer, listing conditions detrimental to performance of the Work.

E. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 GENERAL INSTALLATION REQUIREMENTS

A. Contractor shall provide the required 120 Volt power for all panels unless noted otherwise on plans.

B. Install products to satisfy more stringent of all requirements indicated.

C. Install products level, plumb, parallel, and perpendicular with building construction.

D. Support products, tubing, piping wiring and raceways.

E. If codes and referenced standards are more stringent than requirements indicated, comply with requirements in codes and referenced standards.

F. Fabricate openings and install sleeves in ceilings, floors, roof, and walls required by installation of products. Before proceeding with drilling, punching, and cutting, check for concealed work to avoid damage. Patch, flash, grout, seal, and refinish openings to match adjacent condition.

G. If product locations are not indicated, install products in locations that are accessible and that will permit service and maintenance from floor, equipment platforms, or catwalks without removal of permanently installed furniture and equipment.

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3.3 ELECTRIC POWER CONNECTIONS

A. Connect electrical power to DDC system products requiring electrical power connections.

B. Design of electrical power to products not indicated with electric power is delegated to DDC system provider and installing trade. Work shall comply with NFPA 70 and other requirements indicated.

3.4 IDENTIFICATION

A. Identify system components, wiring, cabling, and terminals.

B. Install self-adhesive labels or melamine plastic signs with unique identification on face for each of the following:

1. DDC controller.

2. Enclosure.

3. Electrical power device.

4. Accessory.

C. Install unique instrument identification on face of each instrument connected to a DDC controller.

D. Warning Labels and Signs:

1. Shall be permanently attached to equipment that can be automatically started by DDC control system.

2. Shall be located in highly visible location near power service entry points.

3.5 NETWORK NAMING AND NUMBERING

A. Coordinate with Owner and provide unique naming and addressing for networks and devices.

3.6 PIPING AND TUBING INSTALLATION

A. Conduit Installation:

1. Comply with” IDENTIFICATION FOR ELECTRICAL SYSTEMS" for control-voltage conductors.

3.7 ADJUSTING

A. Occupancy Adjustments: When requested within 12 months from date of Substantial Completion, provide on-site assistance in adjusting system to suit actual occupied conditions.

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3.8 DEMONSTRATION

A. Engage a factory-authorized service representative with complete knowledge of Project-specific system installed to train Owner's maintenance personnel to adjust, operate, and maintain DDC system.

3.9 MAXIMO-METASYS ASSET NAMING STANDARD

It is essential to follow the naming standard put in place by FMD-B when entering asset data into Maxi-mo for preventative maintenance. Assets can be identified, and data can be retrieved quickly by looking at the name of the asset.

FMD-B Maximo standard labeling convention components for FMD-B owned equipment consist of – Building/Wing (if applicable)/Reference Designator/next number in sequence

Example_1 – 01-W3-AHU-001 Example_2 - 02-AHU-035

For Non-owned equipment that FMD-B is still servicing will have the following convention – P/Building/Wing/Reference Designator/Next number in sequence

Example_1 – P-01-W3-AHU-001 Example_2 - P-02-AHU-035

Please contact your Maximo Administrator to confirm the next number in sequence, or if you are in-stalling an asset that will be tracked in Maximo that doesn’t have a Refence Designator assigned.

It is essential for the assets in Maximo and Metasys to match for ease of preventive maintenance, re-pairs and responding to Metasys alarms.

FMD-B Metasys Engine standard labeling convention consist of – 194-M/Building/Wing (if applicable)/Device type/Maximo unit number (if applicable)/engine number (engine number assigned by Metasys system administrator)

Example_1: 194-M_01-W1-NAE_100 Example_2: 194-M_81-NCE-CRMA1_100

FMD-B Metasys BAC-net device standard labeling convention consist of – 194-M/Building/Wing (if applicable)/Device type/Maximo unit number (if applicable)/Device number (device number assigned by Metasys system administrator)

Example_1: 194-M_01-W1-Phenoix-BAC_100 Example_2: 194-M_81-Semions-AHU9_100

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FMD-B Metasys object standard labeling convention consist of – Building/Wing (if applicable)/Reference Designator/Maximo unit number (if applicable)/ Reference Point

Example_1- 01-W3-AHU-001.DA-T Example_2- 02-AHU-035.DA-T Example_3-

Contact NIST Metasys Administrator to confirm the naming of Metasys control points.

END OF SECTION

3.9 MAXIMO-METASYS ASSET NAMING STANDARD