230900_hvac_instrumentation_controls.pdf

CHICOPEE ARMORY REHABILITATION MMD PROJECT NO. 985101

CHICOPEE, MASSACHUSETTS ISSUED FOR BID - 05/20/11

00000 HVAC INSTRUMENTATION AND CONTROLS 230900 - 1

SECTION 230900

HVAC INSTRUMENTATION AND CONTROLS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

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

Conditions and Division 1 Specification Sections, apply to this Section.

B. The requirements of Section 230100, “Basic Mechanical Requirements” apply to work defined by this Section.

C. The requirements of Section 230500, “Basic Mechanical Materials and Methods” apply to work defined by the Section.

1.2 SUMMARY

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

B. Related Sections include the following:

1. Division 28, Section 281600 "Intrusion Detection" for building intrusion detection system.

2. Division 27, Section 275313 "Clock and Program Control" for building clock control system.

3. Division 26, Section 260943 "Lighting Controls" for building lighting control system.

4. Division 28, Section 283111 "Fire Alarm" for fire and smoke detectors mounted in

HVAC systems and equipment.

5. Division 23, Section 230993 "Sequence of Operation - Educational" for requirements that relate to this Section.

6. Division 26, Section 260913 "Electrical Power Monitoring and Control."

1.3 DEFINITIONS

A. DDC: Direct-digital controls.

B. I/O: Input/output.

C. LAN: Local area network.

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

E. MS/TP: Master-slave/token-passing.

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F. PC: Personal computer.

G. PICS: Protocol Implementation Conformance Statement.

H. PID: Proportional plus integral plus derivative.

I. RTD: Resistance temperature detector.

1.4 SYSTEM DESCRIPTION

A. Control system consists of sensors, indicators, actuators, final control elements, interface equipment, other apparatus, and accessories to control mechanical systems.

B. Control system consists of sensors, indicators, actuators, final control elements, interface equipment, other apparatus, accessories, and software connected to distributed controllers operating in multiuser, multitasking environment on token-passing network and programmed to control mechanical systems.

C. Control system includes the following:

1. Building intrusion detection system specified in Division 28, Section 281600 "Intrusion

Detection."

2. Building clock control system specified in Division 27, Section 275313 "Clock and

Program Control."

3. Building lighting control system specified in Division 26, Section 260923 "Lighting

Controls."

4. Fire alarm system specified in Division 28, Section 283111 "Fire Alarm."

1.5 SEQUENCE OF OPERATION

1.6 GRAPHICS

A. A standard, dynamic, fully programmed, color graphic package shall allow operator capability of constructing floor plan drawings, mechanical equipment piping diagrams, mechanical systems drawings at will, while system is on line. Graphics to be dynamic, displaying current point data information.

1.7 SUBMITTALS

A. Product Data: Include manufacturer's technical literature for each control device. Indicate dimensions, capacities, performance characteristics, electrical characteristics, finishes for materials, and installation and startup instructions for each type of product indicated.

1. Each control device labeled with setting or adjustable range of control.

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

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1. Schematic flow diagrams showing fans, pumps, coils, dampers, valves, and control devices.

2. Wiring Diagrams: Power, signal, and control wiring. Differentiate between manufacturer-installed and field-installed wiring.

3. Details of control panel faces, including controls, instruments, and labeling.

4. Written description of sequence of operation.

5. Schedule of dampers including size, leakage, and flow characteristics.

6. Schedule of valves including leakage and flow characteristics.

7. Trunk cable schematic showing programmable control unit locations and trunk data conductors.

8. Listing of connected data points, including connected control unit and input device.

9. System graphics indicating monitored systems, data (connected and calculated) point addresses, and operator notations.

10. System configuration showing peripheral devices, batteries, power supplies, diagrams, modems, and interconnections.

C. ASHRAE BACnet Statement: PICS for each DDC system component (panel, zone controller, field devices, and operator workstation) proposed.

D. Samples: For each color required, of each type of thermostat cover.

E. Software and Firmware Operational Documentation: Include the following:

1. Software operating and upgrade manuals.

2. Program Software Backup: On a magnetic media or compact disc, complete with data files.

3. Device address list.

4. Printout of software application and graphic screens.

5. Software license required by and installed for DDC workstations and control systems.

F. Software Upgrade Kit: For Owner to use in modifying software to suit future power system revisions or monitoring and control revisions.

G. Field Test Reports: Indicate and interpret test results for compliance with performance requirements.

H. Maintenance Data: For systems to include in maintenance manuals specified in Division 1.

Include the following:

1. Maintenance instructions and lists of spare parts for each type of control device and compressed-air station.

2. Interconnection wiring diagrams with identified and numbered system components and devices.

3. Keyboard illustrations and step-by-step procedures indexed for each operator function.

4. Inspection period, cleaning methods, cleaning materials recommended, and calibration tolerances.

5. Calibration records and list of set points.

I. Qualification Data: For firms and persons specified in "Quality Assurance" Article.

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J. Project Record Documents: Record actual locations of control components, including control units, thermostats, and sensors. Revise Shop Drawings to reflect actual installation and operating sequences.

1.8 QUALITY ASSURANCE

A. Installer Qualifications: Must have a minimum of 5 years experience in the installation of direct digital control systems. Installer must be either of direct employ by the controls manufacturer or be authorized via contractual relationship with the controls manufacturer. Installers purchasing through distributors are not approved. The installer must have the in-house capability to engineer, program, project manage, start-up and commission as well as service and maintenance of direct digital control systems.

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

C. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

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

E. Comply with ASHRAE 135 for DDC system control components.

F. Protocols and Communication: All controls system components shall be capable of communicating to achieve the sequences and derive the appropriate information to meet the intent of these documents and drawings. The control system shall be coordinated with all system components, major pieces of equipment and plant controllers to provide a seamless and operational system. This shall include the appropriate conversion products to ensure that systems operating with different operating protocols communicate and transfer information freely, correctly and completely.

1.9 DELIVERY, STORAGE, AND HANDLING

A. Factory-Mounted Components: Where control devices specified in this Section are indicated to be factory mounted on equipment, arrange for shipping of control devices to unit manufacturer.

1.10 COORDINATION

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

B. Coordinate equipment with Division 28 Section "Intrusion Detection" to achieve compatibility with equipment that interfaces with that system.

C. Coordinate equipment with Division 26 Section "Clock Control" to achieve compatibility with equipment that interfaces with that system.

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D. Coordinate equipment with Division 26 Section "Lighting Controls" to achieve compatibility with equipment that interfaces with that system.

E. Coordinate equipment with Division 28 Section "Fire Alarm" to achieve compatibility with equipment that interfaces with that system.

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

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

H. Coordinate equipment with Division 26 Section "Motor-Control Centers" to achieve compatibility with motor starters and annunciation devices.

I. Coordinate size and location of concrete bases. Cast anchor-bolt inserts into bases. Concrete, reinforcement, and formwork requirements are specified in Division 3 Section "Cast-in-Place

Concrete."

1.11 EXTRA MATERIALS

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

B. Replacement Materials: One replacement diaphragm or relay mechanism for each unique

[valve motor] [controller] [thermostat] [positioning relay].

C. Maintenance Materials: [One] <Insert number required> thermostat adjusting key[s].

D. Maintenance Materials: One pneumatic thermostat test kit.

1.12 EXCLUSIONS

A. Mercury containing products and materials are not permitted to be used for any of the controls functions indicated herein.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

B. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. Control Systems Components:

a. Air Monitor Corp.

http://www.specagent.com/LookUp/?ulid=3262&mf=04&src=wd

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b. Atkomatic Valve Company, Inc.

c. BEC Controls Corp.

d. Belimo Aircontrols (USA), Inc.

e. CEA Instruments Inc.

f. Channel Products Inc.

g. Condyne Technology, Inc.

h. Delta Controls Inc.

i. DGH Systems, LLC

j. Diversified Electronics, Inc.

k. Ebtron, Inc.

l. Energyline Systems; Industrial Products Group.

m. Enerstat Corp.

n. Erie Controls.

o. Functional Devices Inc.

p. Gems Sensors.

q. General Eastern Instruments, Inc.

r. Greystone Energy Systems Inc.

s. Hayward Industrial Products, Inc.

t. Heat-Timer Corporation.

u. Honeywell International Inc.; Home & Building Control.

v. HyCal Sensing Products.

w. ICM Corp.

x. Intec Controls Corp.

y. Johnson Controls, Inc.; Controls Group.

z. KMC Controls/Kreuter Manufacturing Company.

aa. Landis & Staefa, Inc.

bb. Leslie Controls, Inc.

cc. Magnatrol Valve Corporation.

dd. MAMAC Systems, Inc.

ee. Paragon Electric Co., Inc.

ff. Parker Hannifin Corp.; Skinner Valve Division.

gg. RAM Electronics Corp.

hh. RDF Corporation.

ii. Sauter Controls Corporation.

jj. Sensidyne, Inc.

kk. Siemens Building Technologies, Inc.

ll. Sherwood Products, Inc.

mm. Spence Engineering Company, Inc.

nn. SSAC Inc.

oo. TCS/Basys Controls.

pp. Texas Instruments, Inc.; Commercial Sensors & Controls.

qq. Thunder Scientific Corporation.

rr. Time Mark Corporation.

ss. Tour & Andersson Control, Inc.

tt. TSI Inc.; Environmental Measurements & Controls Div.

uu. Uni-Line North America; Robertshaw Division.

vv. Vaisala, Inc.

ww. Valvcon Corporation.

xx. Vent Products Co., Inc.

2. Electric, Electronic, and DDC Systems:

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a. Alerton Inc.

b. Andover Controls Corporation.

c. Automated Logic Corporation.

d. Auto-Matrix, Inc.; Auto-Flow Division.

e. CSI Control Systems International, Inc.

f. Danfoss Automatic Controls.

g. Delta Controls Inc.

h. EDA Controls Corp.

i. Electronic Systems USA, Inc.

j. G C Controls, Inc.

k. Honeywell International Inc.; Home & Building Control.

l. Impact Energy Controls Corp.

m. Johnson Controls, Inc.; Controls Group.

n. KMC Controls/Kreuter Manufacturing Company.

o. Landis & Staefa, Inc.

p. Luwa Bahnson Inc.

q. McQuay International.

r. Neles-Jamesbury.

s. Pneuline Controls.

t. Scientific-Atlanta, Inc.; Control Systems Div.

u. Siebe Environmental Controls; Barber-Coleman/Robertshaw Products.

v. Solidyne Corp.

w. TCS/Basys Controls.

x. Teletrol Systems Incorporated.

y. Trane; Worldwide Applied Systems Group

z. Triangle MicroSystems, Inc.

aa. Uni-Line North America; Robertshaw Division.

2.2 DDC EQUIPMENT

A. Operator Station: Microcomputer station with printer.

B. Updated 9/29/2009 MJC/SRL

C. Workstation: IBM-compatible microcomputer with minimum configuration as follows:

1. Processor: Intel Core2 Duo 2.0 GHz

2. Random-Access Memory: 4.0GB.

3. Graphics: Discrete graphics adapter, minimum 1280 x 1024 pixels 128MB onboard

RAM.

4. Monitor: 19” LCD Display, minimum 8ms response.

5. Keyboard: QWERTY, 105 keys.

6. Floppy-Disk Drives: 1.44 MB.

7. Hard-Disk Drive: 160 GB, 7200 RPM (RAID 1 preferred if supported by the disk controller. Requires 2 physical disk drives.)

8. Removable Media: 8x DVD-R/W±

9. Mouse: Three button optical with scroll wheel.

10. Modem: Autodial, internal, minimum 56 kBaud.

11. Tape Backup: Internal DAT-160 Tape drive and backup software to support automatic backup. (Optional external USB disk storage with minimum RAID 1)

12. Network Interface Card: 1 Gigabit network interface. (RJ-45) http://www.specagent.com/LookUp/?uid=123456811845&mf=04&src=wd http://www.specagent.com/LookUp/?uid=123456811847&mf=04&src=wd http://www.specagent.com/LookUp/?uid=123456811848&mf=04&src=wd http://www.specagent.com/LookUp/?uid=123456811850&mf=04&src=wd http://www.specagent.com/LookUp/?uid=123456811851&mf=04&src=wd http://www.specagent.com/LookUp/?uid=123456811852&mf=04&src=wd http://www.specagent.com/LookUp/?uid=123456824776&mf=04&src=wd http://www.specagent.com/LookUp/?uid=123456811855&mf=04&src=wd http://www.specagent.com/LookUp/?uid=123456824779&mf=04&src=wd http://www.specagent.com/LookUp/?uid=123456811857&mf=04&src=wd http://www.specagent.com/LookUp/?uid=123456811859&mf=04&src=wd http://www.specagent.com/LookUp/?uid=123456824786&mf=04&src=wd http://www.specagent.com/LookUp/?uid=123456811863&mf=04&src=wd http://www.specagent.com/LookUp/?uid=123456811866&mf=04&src=wd http://www.specagent.com/LookUp/?uid=123456811868&mf=04&src=wd http://www.specagent.com/LookUp/?uid=123456824792&mf=04&src=wd http://www.specagent.com/LookUp/?uid=123456811871&mf=04&src=wd

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13. Operating System: Windows XP Professional SP3 (Microsoft Windows 7 32-bit Business

(64-bit optional) is preferred if supported by the controls manufacturer)

14. BACnet Conformance: Workstation shall support BACnet device and have minimum capabilities defined in PICS for the following areas:

a. Network.

b. Functional groups.

c. Standard application services supported.

d. Standard objects supported.

15. UPS/Battery back-up/Line Conditioner: Provide UPS suitably sized for ½ hour of computer and monitor operation, minimum.

D. Printer: Color Laser Printer

1. 600x600 minimum DPI

2. 250-sheet paper tray

3. 20,000 pages per month duty cycle.

4. 20 ppm B&W, 16 ppm color.

E. Modify hardware in paragraph and subparagraphs below as required for current technology.

F. Application Software: Include the following:

1. Input/output capability from operator station.

2. Operator system access levels via software password.

3. Database creation and support.

4. Dynamic color graphic displays.

5. Alarm processing.

6. Event processing.

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

8. Data collection.

9. Graphic development on workstation.

10. Maintenance management.

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

1. Units monitor or control each input/output point; process information; execute commands from other control units, devices, and operator stations; and download from or upload to operator station.

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

a. Global communications.

b. Discrete/digital, analog, and pulse input/output.

c. Monitoring, controlling, or addressing data points.

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

3. Local operator interface provides for download from or upload to mobile operator station.

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4. BACnet Conformance: Reside on BACnet LAN in Ethernet IEEE 802.3, Class 3, minimum, with routers between LAN and other panels, with at least one communication port, and have minimum capabilities defined in PICS for the following areas:

a. Network.

b. Functional groups.

c. Standard application services supported.

d. Standard objects supported.

H. Local Control Units: Modular, comprising processor board with electronically programmable, nonvolatile, read-only memory; and backup power source.

1. Units monitor or control each input/output point; process information; and download from or upload to operator station.

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

a. Global communications.

b. Discrete/digital, analog, and pulse input/output.

c. Monitoring, controlling, or addressing data points.

3. Local operator interface provides for download from or upload to mobile operator station.

4. BACnet Conformance: Reside on BACnet LAN using MS/TP, Class 2, minimum, with at least one communication port, and have minimum capabilities defined in PICS for the following areas:

a. Network.

b. Functional groups.

c. Standard application services supported.

d. Standard objects supported.

I. LANs: Capacity for a minimum of 10 workstations connected to multiuser, multitasking environment with concurrent capability to access DDC network or control units.

1. Media: Ethernet, peer-to-peer CMA/CD, operating at 10 MBps.

2. Media: ARCNET (attached resources computer network), peer to peer, operating at 2.5

MBps.

3. Media: MS/TP, EIA 485, operating at [9.6] [19.2] [38.4] [76.8] kBps.

J. Software: Update to latest version of software at Project completion. Software shall include:

1. All operating system discs

2. Recovery disc

3. Complete system backup disc

4. All program discs

K. Include and implement the following capabilities from the control units:

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

2. Load Control Programs: Demand limiting, duty cycling, automatic time scheduling, start/stop time optimization, night setback/setup, DDC with fine tuning, and trend logging.

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

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

5. Programming Application Features: Include trend point, alarm messages, weekly scheduling, and interlocking.

L. DDC SYSTEM GATEWAY

1. Provide a gateway, if needed, to establish communications between the DDC System

Building Automation Controls and ____________.

2.3 CONTROL PANELS

A. Central (Master) Control Panels: Fully enclosed, steel-rack-type cabinet with locking doors or locking removable backs. Match finish of panels and provide multicolor graphic displays, schematically showing system being controlled.

B. Local Control Panels: Unitized cabinet with suitable brackets for wall or floor mounting, located adjacent to each system under automatic control. Provide common keying for all panels.

1. Fabricate panels of 0.06-inch- (1.5-mm-) thick, furniture-quality steel, or extruded-aluminum alloy, totally enclosed, with hinged doors and keyed lock and with manufacturer's standard shop-painted finish.

2. Panel-Mounted Equipment: Temperature and humidity controllers, relays, and automatic switches; except safety devices. Mount devices with adjustments accessible through front of panel.

3. Door-Mounted Equipment: Flush-mount (on hinged door) manual switches, including damper-positioning switches, changeover switches, thermometers, and gages.

4. Graphics: Color-coded graphic, laminated-plastic displays on doors, schematically showing system being controlled, with protective, clear plastic sheet bonded to entire door.

C. Alarm Panels: Indicating light for each alarm point, single horn, acknowledge switch, and test switch, mounted in hinged-cover enclosure.

1. Alarm Condition: Indicating light flashes and horn sounds.

2. Acknowledge Switch: Horn is silent and indicating light is steady.

3. Second Alarm: Horn sounds and indicating light is steady.

4. Alarm Condition Cleared: System is reset and indicating light is extinguished.

5. Contacts in alarm panel allow remote monitoring by independent alarm company.

2.4 ANALOG CONTROLLERS

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

B. Electric, Outdoor-Reset Controllers: Remote-bulb or bimetal rod-and-tube type, proportioning action with adjustable throttling range, adjustable set point, scale range minus 10 to plus 70 deg F (minus 23 to plus 21 deg C), and single- or double-pole contacts.

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

1. Single controllers can be integral with control motor if provided with accessible control readjustment potentiometer.

D. Fan-Speed Controllers: Solid-state model providing field-adjustable proportional control of motor speed from maximum to minimum of 55 percent and on-off action below minimum fan speed. Controller shall briefly apply full voltage, when motor is started, to rapidly bring motor up to minimum speed. Equip with filtered circuit to eliminate radio interference.

E. Receiver Controllers: Single- or multiple-input models with control-point adjustment, direct or reverse acting with mechanical set-point adjustment with locking device, proportional band adjustment, authority adjustment, and proportional control mode.

1. Remote-control-point adjustment shall be plus or minus 20 percent of sensor span, input signal of 3 to 13 psig (21 to 90 kPa).

2. Proportional band shall extend from 2 to 20 percent for 5 psig (34 kPa).

3. Authority shall be 20 to 200 percent.

4. Air-supply pressure of 18 psig (124 kPa), input signal of 3 to 15 psig (21 to 103 kPa), and output signal 0 to supply pressure.

5. Gages: [1-1/2 inches (38 mm)] [2-1/2 inches (64 mm)] [3-1/2 inches (89 mm)] in diameter, 2.5 percent wide-scale accuracy, and range to match transmitter input or output pressure.

2.5 TIME CLOCKS

A. Seven-day, programming-switch timer with synchronous-timing motor and seven-day dial;

continuously charged, nickel-cadmium-battery-driven, eight-hour, power-failure carryover;

multiple-switch trippers; minimum of two and maximum of eight signals per day with two normally open and two normally closed output contacts.

B. Solid-state, programmable time control with 4 separate programs; 24-hour battery carryover;

individual on-off-auto switches for each program; 365-day calendar with 20 programmable holidays; choice of fail-safe operation for each program; and system fault alarm.

C. Solid-state, programmable time control with [4] [8] <Insert number> separate programs each with up to 100 on-off operations; 1-second resolution; lithium battery backup; keyboard interface and manual override; individual on-off-auto switches for each program; 365-day calendar with 20 programmable holidays; choice of fail-safe operation for each program; system fault alarm; and communications package allowing networking of time controls and programming from PC.

2.6 SENSORS

A. Electronic Sensors: Vibration and corrosion resistant; for wall, immersion, or duct mounting as required.

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1. Thermistor temperature sensors as follows:

a. Accuracy: Plus or minus [0.5 deg F (0.3 deg C)] [0.36 deg F (0.2 deg C)] at calibration point.

b. Wire: Twisted, shielded-pair cable.

c. Insertion Elements in Ducts: Single point, [8 inches (20 cm)] [18 inches (46 cm)] long; use where not affected by temperature stratification or where ducts are smaller than 9 sq. ft. (1 sq. m).

d. Averaging Elements in Ducts: [36 inches (91 cm) long, flexible] [72 inches (183

cm) long, flexible] [18 inches (46 cm) long, rigid]; use where prone to temperature stratification or where ducts are larger than 9 sq. ft. (1 sq. m); length as required.

e. Insertion Elements for Liquids: Brass socket with minimum insertion length of 2-

1/2 inches (64 mm).

f. Room Sensors: Match room thermostats, locking cover.

g. Outside-Air Sensors: Watertight inlet fitting, shielded from direct sunlight.

h. Room Security Sensors: Stainless-steel cover plate with insulated back and security screws.

2. Resistance Temperature Detectors: Platinum.

a. Accuracy: Plus or minus 0.2 percent at calibration point.

b. Wire: Twisted, shielded-pair cable.

c. Insertion Elements in Ducts: Single point, [8 inches (20 cm)] [18 inches (46 cm)] long; use where not affected by temperature stratification or where ducts are smaller than 9 sq. ft. (1 sq. m).

d. Averaging Elements in Ducts: [36 inches (91 cm) long, flexible] [72 inches (183

cm) long, flexible] [18 inches (46 cm) long, rigid]; use where prone to temperature stratification or where ducts are larger than 9 sq. ft. (1 sq. m); length as required.

e. Insertion Elements for Liquids: Brass socket with minimum insertion length of 2-

1/2 inches (64 mm).

f. Room Sensors: Match room thermostats, locking cover.

g. Outside-Air Sensors: Watertight inlet fitting, shielded from direct sunlight.

h. Room Security Sensors: Stainless-steel cover plate with insulated back and security screws.

3. Humidity Sensors: Bulk polymer sensor element.

a. Accuracy: [5] [2] percent full range with linear output.

b. Room Sensors: With locking cover matching room thermostats, span of 25 to 90 percent relative humidity.

c. Duct and Outside-Air Sensors: With element guard and mounting plate, range of 0 to 100 percent relative humidity.

4. Static-Pressure Transmitter: Nondirectional sensor with suitable range for expected input, and temperature compensated.

a. Accuracy: 2 percent of full scale with repeatability of 0.5 percent.

b. Output: 4 to 20 mA.

c. Building Static-Pressure Range: 0 to 0.25 inch wg (0 to 62 Pa).

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d. Duct Static-Pressure Range: 0 to 5 inches wg (0 to 1243 Pa).

5. Pressure Transmitters: Direct acting for gas, liquid, or steam service; range suitable for system; proportional output 4 to 20 mA.

B. Equipment operation sensors as follows:

1. Status Inputs for Fans: Differential-pressure switch with adjustable range of 0 to 5 inches wg (0 to 1243 Pa).

2. Status Inputs for Pumps: Differential-pressure switch piped across pump with adjustable pressure-differential range of 8 to 60 psig (55 to 414 kPa).

3. Status Inputs for Electric Motors: Current-sensing relay with current transformers, adjustable and set to 175 percent of rated motor current.

C. Electronic Valve/Damper Position Indication: Visual scale indicating percent of travel and 2- to

10-V dc, feedback signal.

D. Water-Flow Switches: Pressure-flow switches of bellows-actuated mercury or snap-acting type, with appropriate scale range and differential adjustment, with stainless-steel or bronze paddle.

For chilled-water applications, provide vaporproof type.

E. Carbon-Monoxide Detectors: Single or multichannel, dual-level detectors, using solid-state sensors with 3-year minimum life, maximum 15-minute sensor replacement, suitable over a temperature range of 23 to 130 deg F (minus 5 to plus 55 deg C), calibrated for 50 and 100 ppm, with maximum 120-second response time to 100-ppm carbon monoxide.

F. Carbon-Dioxide Sensor and Transmitter: Single detectors, using solid-state infrared sensors, suitable over a temperature range of 23 to 130 deg F (minus 5 to plus 55 deg C), calibrated for 0 to 2 percent, with continuous or averaged reading, 4 to 20 mA output, and wall mounted.

G. Oxygen Sensor and Transmitter: Single detectors, using solid-state zircon cell sensing, suitable over a temperature range of minus 32 to plus 1100 deg F (0 to 593 deg C), calibrated for 0 to 5 percent, with continuous or averaged reading, 4 to 20 mA output, and wall mounted.

H. Refrigerant Detectors: Dual-level detectors, using solid-state sensors, with alarm preset for 300 ppm, alarm indicator light, alarm silence light and button, alarm test light and button, and trouble light. Provide auxiliary relay preset for 150 ppm.

I. Occupancy Sensor: Passive infrared, with time delay, daylight sensor lockout, sensitivity control, and 180-degree field of view with vertical sensing adjustment, for flush mounting.

2.7 THERMOSTATS

A. Combination Thermostat and Fan Switches: Line-voltage thermostat with two-, three-, or four-position, push-button or lever-operated fan switch.

1. Label switches ["FAN ON-OFF"] ["FAN HIGH-LOW-OFF"] ["FAN HIGH-MED-

LOW-OFF"]. Mount on single electric switch box.

B. Electric solid-state, microcomputer-based room thermostat with remote sensor.

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1. Automatic switching from heating to cooling.

2. Preferential rate control to minimize overshoot and deviation from set point.

3. Set up for four separate temperatures per day.

4. Instant override of set point for continuous or timed period from 1 hour to 31 days.

5. Short-cycle protection.

6. Programming based on [weekdays, Saturdays and Sundays] [every day of week].

7. Selection features include deg F or deg C display, 12- or 24-hour clock, keyboard disable, remote sensor, fan on-auto.

8. Battery replacement without program loss.

9. Thermostat display features include the following:

a. Time of day.

b. Actual room temperature.

c. Programmed temperature.

d. Programmed time.

e. Duration of timed override.

f. Day of week.

g. System mode indications include "heating," "off," "fan auto," and "fan on."

C. Low-Voltage, On-Off Thermostats: NEMA DC 3, 24-V, bimetal-operated, mercury-switch type, with adjustable or fixed anticipation heater, concealed set-point adjustment, 55 to 85 deg F

(13 to 30 deg C) set-point range, and 2 deg F (1 deg C) maximum differential.

D. Line-Voltage, On-Off Thermostats: Bimetal-actuated, open contact or bellows-actuated, enclosed, snap-switch or equivalent solid-state type, with heat anticipator; listed for electrical rating; with concealed set-point adjustment, 55 to 85 deg F (13 to 30 deg C) set-point range.

1. Equip thermostats, which control electric heating loads directly, with off position on dial wired to break ungrounded conductors.

2. Selector Switch: Integral, manual on-off-auto.

3. Dead Band: Maximum 2 deg F (1 deg C).

E. Remote-Bulb Thermostats: On-off or modulating type, liquid filled to compensate for changes in ambient temperature, with copper capillary and bulb, unless otherwise indicated.

1. Bulbs in water lines with separate wells of same material as bulb.

2. Bulbs in air ducts with flanges and shields.

3. Averaging Elements: Copper tubing with either single- or multiple-unit elements, extended to cover full width of duct or unit, adequately supported.

4. Scale settings and differential settings are clearly visible and adjustable from front of instrument.

5. On-Off Thermostat: With precision snap switches, with electrical ratings required by application.

6. Modulating Thermostats: Construct so complete potentiometer coil and wiper assembly is removable for inspection or replacement without disturbing calibration of instrument.

F. Fire-Protection Thermostats: UL listed with fixed or adjustable settings to operate at not less than 75 deg F (24 deg C) above normal maximum operating temperature, with the following:

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1. Reset: [Manual] [Automatic with control circuit arranged to require manual reset at central control panel, with pilot light and reset switch on panel labeled to indicate operation].

G. Room Thermostat Cover Construction: Manufacturer's standard locking covers.

1. Set-Point Adjustment: [Concealed] [Exposed].

2. Set-Point Indication: [Concealed] [Keyed] [Exposed].

3. Thermometer: [Concealed] [Exposed] [Red-reading glass] [Spiral bimetal].

4. Color: <Insert color from manufacturer's standard colors>.

5. Orientation: [Vertical] [Horizontal].

H. Room thermostat accessories include the following:

1. Insulating Bases: For thermostats located on exterior walls.

2. Thermostat Guards: [Locking; heavy-duty, transparent plastic; mounted on separate base] [Metal wire, tamperproof] [Locking, solid metal, ventilated].

3. Adjusting Key: As required for calibration and cover screws.

4. Aspirating Boxes: For flush-mounted aspirating thermostats.

5. Set-Point Adjustment: 1/2-inch- (13-mm-) diameter, adjustment knob.

I. Immersion Thermostat: Remote-bulb or bimetal rod-and-tube type, proportioning action with adjustable throttling range and adjustable set point.

J. Airstream Thermostats: Two-pipe, fully proportional, single-temperature type, with adjustable set point in middle of range and adjustable throttling range, plug-in test fitting or permanent pressure gage, remote bulb, bimetal rod and tube, or averaging element.

K. Electric Low-Limit Duct Thermostat: Snap-acting, single-pole, single-throw, manual- or automatic-reset switch that trips if temperature sensed across any 12 inches (300 mm) of bulb length is equal to or below set point.

1. Bulb Length: Minimum 20 feet (6 m).

2. Quantity: One thermostat for every 20 sq. ft. (2 sq. m) of coil surface.

L. Electric High-Limit Duct Thermostat: Snap-acting, single-pole, single-throw, manual- or automatic-reset switch that trips if temperature sensed across any 12 inches (300 mm) of bulb length is equal to or above set point.

1. Bulb Length: Minimum 20 feet (6 m).

2. Quantity: One thermostat for every 20 sq. ft. (2 sq. m) of coil surface.

M. Heating/Cooling Valve-Top Thermostats: Proportional acting for proportional flow, molded-rubber diaphragm, remote-bulb liquid-filled element, direct and reverse acting at minimum shutoff pressure of 25 psig (172 kPa), and cast housing with position indicator and adjusting knob.

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2.8 HUMIDISTATS

A. Duct-Mounted Humidistats: Electric insertion, 2-position type with adjustable 2 percent throttling range, 20 to 80 percent operating range, single- or double-pole contacts.

B. Pneumatic Room Humidistats: Wall-mounting, proportioning type with adjustable throttling range, [20 to 90] [55 to 95] [25 to 65] percent operating range, and cover matching room thermostat cover.

2.9 ACTUATORS

A. Electric Motors: Size to operate with sufficient reserve power to provide smooth modulating action or two-position action.

1. Comply with requirements in Division 23 Section "Motors."

2. Permanent Split-Capacitor or Shaded-Pole Type: Equip spring-return motors with integral spiral-spring mechanism in housings designed for easy removal for service or adjustment of limit switches, auxiliary switches, or feedback potentiometer.

3. Nonspring-Return Motors for Valves Larger Than NPS 2-1/2 (DN 65): Size for running torque of 150 in. x lbf (16.9 N x m) and breakaway torque of 300 in. x lbf (33.9 N x m).

4. Spring-Return Motors for Valves Larger Than NPS 2-1/2 (DN 65): Size for running and breakaway torque of 150 in. x lbf (16.9 N x m).

5. Nonspring-Return Motors for Dampers Larger Than 25 Sq. Ft. (2.3 sq. m): Size for running torque of 150 in. x lbf (16.9 N x m) and breakaway torque of 300 in. x lbf

(33.9 N x m).

6. Spring-Return Motors for Dampers Larger Than 25 Sq. Ft. (2.3 sq. m): Size for running and breakaway torque of 150 in. x lbf (16.9 N x m).

B. Electronic [Damper] [Large-Valve] Actuators: Direct-coupled type designed for minimum

60,000 full-stroke cycles at rated torque.

1. Valves: Size for torque required for valve close-off at maximum pump differential pressure.

2. Dampers: Size for running torque calculated as follows as a minimum, however review actual damper product information for the project and provide manufacturer recommended torque requirements if they exceed these general guidelines. The highest torque requirement shall prevail.

a. Parallel-Blade Damper with Edge Seals: 7 inch-pounds/sq. ft. (86.8 kg-cm/sq. m) of damper.

b. Opposed-Blade Damper with Edge Seals: 5 inch-pounds/sq. ft. (62 kg-cm/sq. m) of damper.

c. Parallel-Blade Damper without Edge Seals: 4 inch-pounds/sq. ft (49.6 kg-cm/sq.

m) of damper.

d. Opposed-Blade Damper without Edge Seals: 3 inch-pounds/sq. ft. (37.2 kg-cm/sq.

m) of damper.

e. Dampers with 2 to 3 Inches wg (500 to 750 Pa) of Pressure Drop or Face

Velocities of 1000 to 2500 FPM (5 to 13 m/s): Multiply the minimum full-stroke cycles above by 1.5.

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f. Dampers with 3 to 4 Inches wg (750 to 1000 Pa) of Pressure Drop or Face

Velocities of 2500 to 3000 FPM (13 to 15 m/s): Multiply the minimum full-stroke cycles above by 2.0.

3. Coupling: V-bolt and V-shaped, toothed cradle.

4. Overload Protection: Electronic overload or digital rotation-sensing circuitry.

5. Fail-Safe Operation: Mechanical, spring-return mechanism. Provide external, manual gear release on non-spring-return actuators.

6. Power Requirements (Two-Position Spring Return): [24] [120] [230]-V ac.

7. Power Requirements (Modulating): Maximum 10 VA at 24-V ac or 8 W at 24-V dc.

8. Proportional Signal: 2- to 10-V dc or 4 to 20 mA, and 2- to 10-V dc position feedback signal.

9. Temperature Rating: [Minus 22 to plus 122 deg F (minus 30 to plus 50 deg C)] [40 to

104 deg F (4 to 40 deg C)].

10. Temperature Rating (Smoke Dampers): Minus 22 to plus 250 deg F (minus 30 to plus

121 deg C).

11. Run Time: [12 seconds open, 5 seconds closed] [30 seconds] [60 seconds] [120 seconds].

2.10 CONTROL VALVES

A. Control Valves: Factory fabricated, of type, body material, and pressure class based on maximum pressure and temperature rating of piping system, unless otherwise indicated.

B. Globe Valves NPS 2 (DN 50) and Smaller: Bronze body, bronze trim, rising stem, renewable composition disc, and screwed ends with backseating capacity repackable under pressure.

C. Globe Valves NPS 2-1/2 (DN 65) and Larger: Iron body, bronze trim, rising stem, plug-type disc, flanged ends, and renewable seat and disc.

D. Hydronic system globe valves shall have the following characteristics:

1. Rating: Class 125 for service at 125 psig (862 kPa) and 250 deg F (121 deg C) operating conditions.

2. Internal Construction: Replaceable plugs and seats of stainless steel or brass.

a. Single-Seated Valves: Cage trim provides seating and guiding surfaces for plug on top and bottom of guided plugs.

b. Double-Seated Valves: Balanced plug; cage trim provides seating and guiding surfaces for plugs on top and bottom of guided plugs.

3. Sizing: 3-psig (21-kPa) maximum pressure drop at design flow rate.

4. Flow Characteristics: Two-way valves shall have equal percentage characteristics; three-way valves shall have linear characteristics. Operators shall close valves against pump shutoff head.

5. Close-Off (Differential) Pressure Rating: Combination of actuator and trim shall provide minimum close-off pressure rating of 150 percent of total system (pump) head for two-way valves and 100 percent of pressure differential across valve or 100 percent of total system (pump) head.

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E. Steam system globe valves shall have the following characteristics:

1. Rating: Class 125 for service at 125 psig (862 kPa) and 250 deg F (121 deg C) operating conditions.

2. Internal Construction: Replaceable plugs and seats of stainless steel.

a. Single-Seated Valves: Cage trim provides seating and guiding surfaces for plug on top and bottom of guided plugs.

b. Double-Seated Valves: Balanced plug; cage trim provides seating and guiding surfaces for plugs on top and bottom of guided plugs.

3. Sizing: 10-psig (69-kPa) inlet pressure and 5-psig (35-kPa) pressure drop.

4. Sizing: Pressure drop across steam valve at a maximum flow of 80 percent of inlet pressure for low-pressure systems and 42 percent for high-pressure systems.

5. Flow Characteristics: Modified linear characteristics.

6. Close-Off (Differential) Pressure Rating: Combination of actuator and trim shall provide minimum close-off pressure rating of 150 percent of operating (inlet) pressure.

F. Butterfly Valves: 200-psig (1380-kPa), 150-psig (1035-kPa) maximum pressure differential, ASTM A 126 cast-iron or ASTM A 536 ductile-iron body and bonnet, extended neck, stainless-steel stem, field-replaceable EPDM or Buna N sleeve and stem seals.

1. Body Style: [Wafer] [Lug] [Grooved].

2. Disc Type: [Nickel-plated ductile iron] [Aluminum bronze] [Elastomer-coated ductile iron] [Epoxy-coated ductile iron].

3. Sizing: 1-psig (7-kPa) maximum pressure drop at design flow rate.

G. Terminal Unit Control Valves: Bronze body, bronze trim, two- or three-port as indicated, replaceable plugs and seats, union and threaded ends.

1. Rating: Class 125 for service at 125 psig (862 kPa) and 250 deg F (121 deg C) operating conditions.

2. Sizing: 3-psig (21-kPa) maximum pressure drop at design flow rate, to close against pump shutoff head.

3. Flow Characteristics: Two-way valves shall have equal percentage characteristics; three-way valves shall have linear characteristics.

2.11 DAMPERS

A. Dampers: AMCA-rated, parallel or opposed-blade design; 0.1084-inch (2.8-mm) minimum, galvanized-steel frames with holes for duct mounting; damper blades shall not be less than

0.0635-inch (1.6-mm) galvanized steel with maximum blade width of 8 inches (203 mm).

Parallel blade design dampers shall be suitable for two position damper operation. All modulating dampers shall be opposed blade design.

1. Blades shall be secured to 1/2-inch- (13-mm-) diameter, zinc-plated axles using zinc-plated hardware, with nylon blade bearings, blade-linkage hardware of zinc-plated steel and brass, ends sealed against spring-stainless-steel blade bearings, and thrust bearings at each end of every blade.

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2. Operating Temperature Range: From minus 40 to plus 200 deg F (minus 40 to plus 93 deg C).

3. Edge Seals, Standard Pressure Applications: Closed-cell neoprene.

4. For low-leakage applications, use parallel- or opposed-blade design with inflatable seal blade edging, or replaceable rubber seals, rated for leakage at less than 10 cfm per sq. ft.

(51 L/s per sq. m) of damper area, at differential pressure of 4 inches wg (995 Pa) when damper is being held by torque of 50 in. x lbf (5.6 N x m); when tested according to

AMCA 500D.

2.12 ADDED 10/5/09 RMW

2.13 AIR FLOW MONITORING SENSORS AND TRANSMITTERS

A. Basis of Design : Ebtron Gold Series GTx116-P.

B. Materials of Construction: Gold anodized 6061 aluminum. For corrosive environments use 316 stainless steel.

C. Provide solid state electronic air measurement system (EAMS). Contractor is responsible for mounting EAMS in strict accordance with manufacturer’s recommendations. EAMS station shall be capable of functioning accurately between –20 degrees F and +160 degrees F at velocities up to 1500 FPM and humidity ranges of 0 to 99%, and have the ability to transmit a 4 to 20 mA signal representative of velocity. The measurement system shall be factory calibrated with a total accuracy of +/- 3% of actual flow down to 10% of normal flow. Total EAMS accuracy shall include and depend upon: temperature, compensation, humidity, repeatability, turbulence and placement. If required, field assembly and field calibration of airflow measuring station shall be the responsibility of the installing contractor. System shall require a single 24 volt fused power connection to the transmitter. The transmitter shall accommodate up to 4 sensors.

D. The transmitter shall be microprocessor based and capable of processing up to 16 independent sensing points per location. All connectors and interconnects shall have gold plated contacts.

Display shall have a 16 character alphanumeric LCD display for airflow, temperature, and system diagnostics. The transmitter shall be configured to communicate with BAS system and allow the BAS to display airflow, temperature, and system alarms on an operator work station.

E. Sensors shall be duct mounted, with hermetically sealed thermistor temperature sensors.

Allowable flow velocity range to be 0 to 3000 feet per minute. Mounting brackets shall be 304 stainless steel.

2.14 CLEANROOM PARTICLE MONITORING SYSTEM

A. Manufacturers:

1. Hach Ultra

2. Particle Measuring Systems, Inc

B. Laser particle sensor shall size particles in four channels with thresholds of 0.3 and 5.0 microns with sampling rate of 1.0 CFM. Sensors shall operate with laser diodes.

00000 HVAC INSTRUMENTATION AND CONTROLS 230900 - 20

C. Instruments shall be designed for continuous monitoring of a clean room environment. Sensors shall be constructed of a non-shedding material suitable for a clean room environment.

D. Sensors shall have built-in status indicators to display power, laser, and flow activity on each unit for easy viewing. Sensors shall be powered by 24VAC. Sensors shall have a built-in

Ethernet connection (or 4-20mA output) that allows particulate information to be sent to the facility BMS for real-time analysis and control of the recirculation air handler speed.

E. Calibration materials used shall be traceable to NIST or ASTM F-328 and ASTM F-649.

F. Provide all wiring, tubing, calibration, and testing for a complete and functioning system.

Manufacturer shall test all systems for proper operation.

*********COORDINATE CONTROLS WIRING WITH DIVISION 16*********

2.15 CONTROL CABLE

A. Electronic and Fiber-Optic Cable for Control Wiring: As specified in Division 16.

2.16 FLUID FLOW METER

A. General: Provide flow meter at each chiller as required to provide GPM readout to the chilled water optimization system.

B. Flow Meter: Flow meter shall be analog output type, 4-20 mA current output; dual turbine flow meter having an accuracy of 2% of actual reading from 0.4 to 20 Ft/s; 24 4V DC @ 50 mA supply voltage; pressure drop less than 1 psi. Wetted metal parts shall be bright tin plated brass.

C. Manufacturer: Onicon Model F-1210.

2.17 BALL-IN-TUBE THROUGH WALL PRESSURE INDICATION/ALARM DEVICE

A. Provide a ball-in-tube pressure indication device as indicated on the construction drawings.

Device shall be negative or positive pressure as indicated on the drawings.

B. Provide a wall label that describes proper operation to the staff.

C. Provide photoeye module to sense the presence of the ball. Photoeye shall connect to a controller module to send an alarm signal to the BMS when space differential pressure is less than specified. Controller shall provide a time delay to eliminate false alarms due to transient conditions such as doors opening.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify that conditioned power supply is available to control units and operator workstation.

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B. Verify that duct-, pipe-, and equipment-mounted devices and wiring and pneumatic piping are installed before proceeding with installation.

3.2 BUILDING FIRE ALARM INTERFACING

A. General: Provide all controls for interfacing the building HVAC systems to the building fire alarm system. The building fire alarm system and smoke detectors are specified in Division 26.

B. The fire-alarm system, as described in Division 16, will send a signal to the DDC system to identify when each designated area is in alarm.

3.3 Upon receipt of the fire alarm signal, the DDC system serving that fire zone shall continue to operate. It shall be automatically shut down only when activated by the smoke detector located in the air handling unit. Both the supply fan and its related return fan shall be shut down by the same sensor.

3.4 INSTALLATION

A. Install equipment level and plumb.

B. Install software in control units and operator workstation. Implement all features of programs to specified requirements and as appropriate to sequence of operation.

C. Connect and configure equipment and software to achieve sequence of operation specified.

D. Verify location of thermostats, humidistats, and other exposed control sensors with plans and room details before installation. Locate equipment at centerline height of 44 inches (1118 mm) above the finished floor.

1. Install averaging elements in ducts and plenums in crossing or zigzag pattern.

E. Install guards on thermostats in the following locations:

1. Entrances.

2.