Addendum_002.pdf

ADDENDUM NO. 002

PROJECT: USDA-ARS DESIGN THE BUILDING AUTOMATION CONTROLS FOR BUILDING 24,

CROPPING SYSTEMS RESEARCH LABORATORY (CSRL)

Lubbock, Texas

ARCHITECT: McCall & Associates-AIA-Architects

8610 N. New Braunfels Ave., Suite 201 San Antonio, Texas 78217

(210) 824-8400 (Phone)

(210) 824-8484 (Fax)

DATE: August 3, 2018

This addendum shall be included in and considered part of the drawings and specifications for the above referenced project. Wherein provisions for the following drawings and specifications contained in the addendum differ from the provisions of the original drawings and specifications, the provisions of the addendum shall govern and take precedence.

This addendum is being issued to all contractors to whom documents have been issued. This addendum shall become a part of the Proposal/Bidding Documents, and in turn, shall become a part of the Contract Documents at the time a Contract for Construction is awarded to the successful bidder.

Care has been taken to make reference to all items being revised, added, deleted, or clarified; however, any item called for in this Addendum, but not cross-referenced to every possible item shall be construed to apply to any drawings, specifications, or schedules related or referenced to the item stated in the addendum.

It is recommended that each correction, addition, deletion or clarification herein stated or shown be made to the corresponding portion of the drawings or specifications to which it applies. Bidders are cautioned to verify that subcontractors affected by this addendum have knowledge of this addendum and incorporate same into their Bid.

MECHANICAL SPECIFICATION REVISIONS

1. SECTION 233602 – LABORATORY AIRFLOW VALVES:

a. Paragraph 2.1, A, Acceptable Manufacturers: Add No. 3 to read as follows – “Phoenix Airflow Control Valves.”

b. Paragraph 2.3, K, 4: Delete paragraph in its entirety.

c. Paragraph 2.3, K, 5: Delete paragraph in its entirety.

2. SECTION 233602.01 – LABORATORY AIRFLOW VALVES

(VENTURI TYPE):

a. Add Specification Section for use of Venturi Type airflow valves on the project.

ADDENDUM NO. 001

USDA-ARS DESIGN THE BUILDING AUTOMATION CONTROLS FOR BUILDING 24, CROPPING SYSTEMS

RESEARCH LABORATORY (CSRL)

Lubbock, Texas August 3, 2018

3. GENERAL PROJECT INFORMATION:

a. Airflow valves utilized on the project shall comply with either Specification Section 233602 or

233602.01 and no penalty shall be enforced for using Accutrol, Phoenix, or other approved manufacturer’s Airflow Valves.

END OF ADDEMDUM NO. 002

Attachments: Addendum No. 002 MEP Seal and Description Page.

New Specification Section 233602.01 – Laboratory Airflow Valves (Venturi Type).

cc: file:#375-109 H:\Documents\375-109 Upgrade BAC-Bldg 24-Lubbock, TX\Bidding\Addendum 001.doc

USDA/ARS – Design the Building Automation Controls for Building 24 Cropping Systems Research Laboratory (CSRL), Lubbock, TX August, 2018

LABORATORY AIRFLOW VALVES 233602 - 1

SECTION 233602.01

LABORATORY AIRFLOW VALVES - (VENTURI TYPE)

PART 1 - GENERAL

1.01 SUMMARY.

Laboratory Airflow Valves and associated fume hood control components shall be furnished under this section. The Laboratory Airflow Valves shall be integrated with the Building Management System (BMS) or Building Automation System (BAS).

REFERENCES.

A. Abbreviations and Acronyms

2. ATC – Advanced Temperature Control

3. BMS – Building Management System

4. BAS – Building Automation System

5. UBC – Usage Based Controls

6. VAV – Variable Air Volume

7. TTW – Through The Wall (sensor)

B. Reference Standards

1. Air Conditioning and Refrigeration Institute

ARI 880 Performance Rating of Air Terminals

2. American Society of Heating, Refrigeration, and Air Conditioning Engineers / American

National Standards Institute ASHRAE/ANSI Standard 130, Methods for Testing Air Terminal Units

3. American National Standards Institute / American Society of Heating, Refrigeration, and Air Conditioning Engineers ANSI/ASHRAE 135-2012: BACnet® - A Data Communication Protocol for Building Automation Systems (including Standard and all published Addenda)

1.02 SUBMITTALS

A. General: Submit listed Submittals in accordance with Conditions of the General Contract and

Division 1 Submittal Procedures Section. Submittals shall contain, at a minimum, the following information:

1. Product Data Sheets

2. Equipment Schedule Sheets containing Room#, Tag#, Min/Max flows, Catalog# and other configuration data as required.

3. Installation Instructions

4. Project-specific Wiring Diagrams

1.03 CLOSEOUT SUBMITTALS

A. Operation and maintenance manuals, including as-built wiring diagrams and component lists, shall be provided as closeout submittals.

1.04 QUALITY ASSURANCE

A. Certifications

1. The laboratory airflow system provider shall be an entity that designs, develops, manufactures and sells products and services to control the environment and airflow of critical spaces using a Quality Management System registered to ISO 9001:2008.

USD/ARS - Design the Building Automation Controls for Building 24 Cropping Systems Research Laboratory (CRSL), Lubbock, TX

LABORATORY AIRFLOW VAVLES

(VENTURI TYPE) 233602.1 - 2

2. The Venturi valves shall be calibrated on NVLAP accredited air stations.

1.05 DELIVERY, STORAGE, AND HANDLING

A. Storage and Handling Requirements

1. Prior to installation, the Laboratory Airflow Valves shall be stored in dry conditions within an environment complying with product specifications as shown on product data sheets within the submittals.

2. The products shall be handled and transported in a manner consistent trade practices for control systems and instruments.

1.06 WARRANTY

The Warranty shall commence upon the date of shipment and extend for a period of 60 months for all airflow control devices.

PART 2 - PRODUCTS

2.01 LABORATORY AIRFLOW VALVES

Laboratory Airflow Valves shall be furnished and installed to control the exhaust airflow out of laboratory rooms. The Laboratory Airflow Valves shall be integrated with the Building Management System (BMS). The exhaust flow rate of a laboratory fume hood shall be controlled precisely to maintain a constant average face velocity into the fume hood. The laboratory control system shall vary the amount of general exhaust from the room to achieve negative laboratory pressurization in relation to adjacent spaces (positive or negative), utilizing corresponding supply airflow rates for the lab from the BMS.

COMPONENTS

A. Laboratory Airflow Valves - GENERAL

1. The airflow control device shall be a Phoenix Controls Accel II pressure independent venturi valve.

2. The valve assembly manufacturer’s Quality Management System shall be registered to ISO 9001:2008.

3. Airflow control device shall be OSHPD tested and certified per 2013 CBC, 2012, IBC, ASCE 7-10, and ICC-ES-AC-156.

4. All Components of the valve, its controllers, and wiring shall be ROHS compliant.

5. The airflow control device shall be mechanically pressure independent over its specified differential static pressure operating range of 0.3 inches water column. An integral pressure independent assembly shall respond and maintain specific airflow within one second of a change in duct static pressure irrespective of the magnitude of pressure and/or flow change (within product specifications) or quantity of airflow controllers on a manifolded system.

6. The airflow control device shall maintain accuracy within ±5% of signal to set point over an airflow turndown range of no less than:

a. 7 to 1 (low pressure all valve sizes)

b. 11 to 1 (low pressure excluding 14” valve)

7. No minimum entrance or exit duct diameters shall be required to ensure accuracy and/or pressure independence.

8. No rotational/axial orientation requirements shall be required to ensure accuracy and/or pressure independence.

9. No airflow sensors, static pressure transducers, vortex airflow measuring devices, or differential pressure transducers are required.

LABORATORY AIRFLOW VAVLES

(VENTURI TYPE) 233602.1 - 3

10. The airflow control device shall maintain pressure independence regardless of loss of power.

“Electronically pressure independent” devices will not be acceptable.

11. Airflow control device shall be able to achieve its maximum turndown ratio at its stated minimum operating differential pressure. I.E. if minimum operating pressure is 0.3” wc dp, a 10” air valve must be able to achieve its minimum of 50cfm and its maximum of 500 cfm at stated 0.3” wc dp. Devices that require duct static pressure to be increased to achieve maximum flow shall not be acceptable.

12. The airflow control device shall be constructed of one of the following types:

a. Class A—The airflow control device for non-corrosive airstreams, such as supply and general exhaust, shall be constructed of 16-gauge aluminum. The device's shaft and internal “S” link shall be made of 316 stainless steel. The shaft support brackets shall be made of galvaneal (non shutoff valves) or 316 stainless steel (shutoff valves). The pivot arm shall be made of aluminum (for non shutoff valves) and 303/304 stainless (for shut off valves). The pressure independent springs shall be a spring-grade stainless steel. All shaft bearing surfaces shall be made of a PP (polypropylene) or PPS (polyphenylene sulfide) composite. Sound attenuating devices used in conjunction with general exhaust or supply airflow control devices shall be constructed using 24 gauge galvanized steel or other suitable material used in standard duct construction. No sound absorptive materials of any kind shall be used.

b. Class B—The airflow control device for corrosive airstreams, such as fume hoods and biosafety cabinets, shall have a baked-on, corrosion-resistant phenolic coating. The device's shaft shall be made of 316 stainless steel with a Teflon coating. The shaft support brackets shall be made of 316 stainless steel. The pivot arm and internal “S” link shall be made of 316 or 303 stainless steel. The pressure independent springs shall be a spring-grade stainless steel. The internal nuts, bolts and rivets shall be stainless steel. All shaft bearing surfaces shall be made of PP (polypropylene) or PPS (polyphenylene sulfide) composite.

13. Actuation

a. For high speed electrically actuated VAV operation, a CE certified, UL Listed, IP56 rated for dust and water, electronic actuator shall be factory mounted to the valve. Loss of main power shall cause the valve to position itself in an appropriate failsafe state. Options for these failsafe states include: normally open-maximum position, normally closed-minimum position and fail-to-last position. This position shall be maintained constantly without external influence, regardless of external conditions on the valve (within product specifications).

In fail safe conditions the Airflow Control Device must remain pressure independent and in control of airflow at its failed position. I.E. if a device fails in position at 500 cfm, the airflow control device must remain pressure independent regardless of having power/controller operating and will deliver the 500cfm at that given control point regardless of duct pressure.

Airflow control devices with single or dual blades that fail in position or fail open will not be acceptable as the airflow delivered cannot be guaranteed due to device not being mechanically pressure independent.

b. During normal operation, the high speed actuated airflow control device shall initiate valve movement and achieve the commanded airflow value with no more than 5% overshoot or undershoot within 1 second or less.

LABORATORY AIRFLOW VAVLES

(VENTURI TYPE) 233602.1 - 4

14. The controller for the airflow control devices shall be microprocessor based and operate using peer-to-peer control architecture. The room-level airflow control devices shall function as a standalone network.

15. NVLAP Accreditation (Lab Code 200992-0)

a. Each airflow control device shall be factory characterized on air stations NVLAP Accredited

(a program administered by NIST) to ISO/IEC 17025:2005 standards.

b. Each airflow control device shall be factory characterized to the job specific airflows as detailed on the plans and specifications using NVLAP Accredited air stations. Electronic airflow control devices shall be further characterized and their accuracy verified to ±5% of signal at a minimum of 48 different airflows across the full operating range of the device.

c. Each airflow control device shall be marked with device-specific factory characterization data. At a minimum, it should include the room number, tag number, serial number, model number, eight-point characterization information (for electronic devices), date of manufacture and quality control inspection numbers. All information shall be stored by the manufacturer for use with as-built documentation. Characterization data shall be stored indefinitely by the manufacturer and backed up off site for catastrophic event recovery.

B. EXHAUST AIRFLOW DEVICE CONTROLLER

1. The airflow control device shall be a microprocessor-based design and shall use closed loop control to linearly regulate airflow based on a digital control signal. The device shall generate a digital feedback signal that represents its airflow.

2. During normal operation the airflow control device shall initiate valve movement and achieve the commanded airflow value with no more than 5% overshoot or undershoot within:

a. 1 second or less with high speed actuation.

b. The airflow control device shall store its control algorithms in non-volatile, re-writeable memory. The device shall be able to stand-alone or to be networked with other room-level digital airflow control devices using an industry standard protocol.

3. Room-level control functions shall be embedded in and carried out by the airflow device controller using distributed control architecture. Critical control functions shall be implemented locally; no separate room-level controller shall be required.

4. The airflow control device shall use industry standard 24 VAC power.

5. The airflow control device shall have provisions to connect a Phoenix Controls Workbench

(WKB100) commissioning tool and every node on the network shall be accessible from any point in the system.

6. The airflow control device shall have built-in integral input/output connections that address fume hood control, emergency control, and non-network sensors switches and control devices.

At a minimum, the airflow controller shall have:

a. Three universal inputs capable of accepting 0 to 10 VAC, 4 to 20 mA, 0 to 65 K ohms, or

Type 2 or Type 3 10 K ohm @ 25 degree C thermistor temperature sensors.

b. One digital input capable of accepting a dry contact or logic level signal input.

c. Two analog outputs capable of developing either a 0 to 10 VAC @ 1 mA (10Kohm min) or

4 to 20 mA (500 ohm max) linear control signal.

d. One Form C (SPDT) relay output capable of driving up to 1 A @ 24 VAC/VAC.

C. FUME HOOD DISPLAY

1. The display screen shall be a Phoenix Controls Sentry 3.2” (diagonal) color LCD resistive touch screen (240 x 320 RGB).

2. The touch screen shall support input configurations for fume hood operational parameters done at the touch panel and at a minimum including:

a. Sash Dimensions

LABORATORY AIRFLOW VAVLES

(VENTURI TYPE) 233602.1 - 5

b. Hood ID

c. Hood Certification Reminder

d. Hood Occupancy Status

e. Stopwatch/Timer

f. Message Display

3. Hood configuration for the following properties shall be viewable and editable from the touch display:

a. Sash Dimensions

b. Hood ID

c. Hood Certification Reminder

d. Hood Occupancy Status

e. Stopwatch/Timer

f. Message Display

4. Two mechanical membrane buttons shall be provided at the front panel of the display to enable users to quickly activate emergency exhaust mode and mute without having to remove protective gloves.

5. A USB port shall be provided to support firmware and software upgrades and shall be covered to protect against moisture or corrosion.

6. A timer feature shall be provided to enable users to set specific durations for experiments and provide visual and audible alarms when the set time is expired.

7. POWER

The device shall be powered by 24 VAC + 15% at 10VA, 50/60 Hz.

8. CONFIGURATION

a. Configuration shall be performed from the touch display. The device shall display fume hood performance data based on control logics embedded inside the valve controller.

9. INFORMATION DISPLAY

a. The device shall have the ability to indicate when the fume hood face velocity is within the normal operating range as well as energy saving, hood certification, hood ID, timer, and hood occupancy status.

b. The device shall have the ability to display system errors caused by the airflow valve or sash travel.

c. The device shall have the ability to indicate to users when the hood is due for recertification by stating on the LCD display “Hood Cert. due MM/DD/YYYY”.

10. EMERGENCY (PURGE) EXHAUST

a. The display shall have a mechanical membrane button on the lower portion that when pressed will initiate an emergency (purge) exhaust mode in the attached fume hood valve(s).

b. The emergency (purge) exhaust mode, when initiated, will send the attached fume hood exhaust valve(s) to either the maximum flow of the valve or another predefined flow (as configured in the fume hood valve).

11. ALARMS

a. The device shall have the ability to show alarms on the main screen using visual and audible alerts.

LABORATORY AIRFLOW VAVLES

(VENTURI TYPE) 233602.1 - 6

b. The device shall have an Alarm Muting option, which silences the audible alarm for an adjustable time period when the mute button is pushed. If another alarm is generated during the mute period, the new alarm shall override the mute delay and the alarm shall sound again.

c. The device shall have the ability to customize audible alarms levels and customize mute duration.

d. Users shall have the ability to change the volume of the alarm tone to low, medium, or high.

e. The device shall have the ability to show Diversity alarm.

1) Diversity alarm shall be generated by the valve or from the BMS system.

2) No audible tone for diversity alarm shall be generated at the fume hood display.

12. ENERGY CONSERVATION

a. The device shall have the ability to enable fume hood hibernation mode.

1) When activated, with the sash fully closed and no chemicals present in the hood, the exhaust flow through the fume hood goes to the minimum allowed by the exhaust valve (or shut-off where available).

2) The mode shall be initiated by a sequence including entering the menu and a password on the touch display, an external momentary switch input to the fume hood controller, or a network command via BMS or BAS.

3) When activated, the LCD display shall show “Hood in Hibernation,” and the exhaust valve shall move to its minimum position or shutoff position.

13. SECURITY

End users shall have the ability to enable a PIN pass code to prevent unauthorized changes to sash heights, air flow settings and other editable parameters.

2.03 ACCEPTABLE MANUFACTURERS

A. Acceptable Manufacturers Phoenix Controls Corporation

2.04 PERFORMANCE/DESIGN CRITERIA

A. The system shall employ individual average face velocity controllers that directly measure the area of the fume hood sash opening and proportionally control the hood’s exhaust airflow to maintain a constant face velocity over a minimum range of 20% to 100% of sash travel. The corresponding minimum hood exhaust flow turndown ratio shall be 5 to 1. Use of Sidewall Sensors or Through The Wall (TTW) sensors to control the face velocity are unacceptable.

B. The hood exhaust airflow control device shall respond to the fume hood sash opening by achieving 90% of its commanded value within one second of the sash reaching 90% of its final position (with no more than 5% overshoot/undershoot) of required airflow. Rate of sash movement shall be from one to one and one-half feet per second.

C. The hood exhaust airflow control device shall be switched automatically between in-use and standby levels based on the operator’s presence immediately in front of the hood. A presence and motion sensor shall activate the switching. The airflow control device shall achieve the required in-use commanded value in less than one second from the moment of detection with no more than a 5% overshoot or undershoot.

D. The Laboratory Airflow Valves shall maintain specific airflow (±5% of signal within one second of a change in duct static pressure) regardless of the magnitude of the pressure change, airflow change or quantity of airflow control devices on the manifold (within 0.3" to 3.0" wc).

Volumetric offset control shall be used to maintain room pressurization. The system shall maintain proper room pressurization polarity (negative or positive) regardless of any change in room/system conditions, such as the raising and lowering of any or all fume hood sashes or rapid changes in duct static pressure.

LABORATORY AIRFLOW VAVLES

(VENTURI TYPE) 233602.1 - 7

2.05 OPERATION SEQUENCES

A. Volumetric Offset Pressurization Control The Laboratory Airflow Valve network shall monitor room supply flow rates from the BMS, fume hood exhaust flow rates , and adjust exhaust airflow rates to maintain a volumetric offset (either positive or negative). Offset shall be maintained regardless of any change in flow or static pressure (within specified range for low pressure valves). This offset shall be field adjustable and represents the volume of air, which will enter (or exit) the room from the corridor or adjacent spaces.

The pressurization control algorithm shall sum the flow values of all supply and exhaust airflow devices and command appropriate controlled devices to new set points to maintain the desired offset.

The pressurization control algorithm shall consider both networked devices, as well as:

Volumetric offset shall be the only acceptable means of controlling room pressurization. Systems that rely on differential pressure as a means of control shall provide documentation to demonstrate that space pressurization can be maintained if fume hood sashes are changed at the same time a door to the space is opened.

B. Fume Hood Control Airflow devices intended to control the face velocity of a fume hood shall have the ability to interface directly with the fume hood monitoring device. The airflow control device shall:

1. Accept command inputs to regulate the flow accordingly and make this command value available to the BMS.

2. Accept a sash position signal and make this value available to the BMS.

3. Provide a flow feedback signal to the fume hood monitor, which may be used for calculating face velocity or to confirm the airflow device has achieved the proper flow rate and make this value available to the BMS.

4. Provide alarm signals to the fume hood monitor in the event the airflow device is unable to achieve the proper flow rate, there is a loss of static pressure indicating improper fan operation, or there is a loss of power to the airflow control device, in order to provide a local alarm indication.

The fume hood airflow control device shall respond to changes in sash position and user presence within one second without hunting, in order to provide a constant 100-feet-per-minute face velocity when the fume hood is in use.

2.06 INTERFACE TO BUILDING MANAGEMENT SYSTEMS

A. The Laboratory Airflow Valve network shall have the capability of digitally interfacing with the BMS.

B. All room-level points shall be available to the BMS for monitoring or trending as shown in the following section F, Table 1. Integration Points.

1. The Laboratory Airflow Valve Integration device shall be a Phoenix Controls Integrator

(PCI8000) or equivalent. The device shall be a standalone piece of hardware with embedded Niagara 3.8.213 or Niagara and will be used for commissioning and configuration of venturi valves and ancillary components such as Fume Hood Displays, and Input Output (I/O) modules when connected to a Phoenix Controls Workbench, Room Manager, or Supervisor.

2. After the Room Level Interface is commissioned it shall provide a web based user interface for device, network, and platform diagnostics as well as a Test and Balance web application for zone balance and airflow validation. Room Level interface will also provide a means of

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(VENTURI TYPE) 233602.1 - 8

integrating on an open BACnet network via IP, Ethernet, or MS/TP to be field selectable at time of commissioning.

3. Room Level Integrator shall be able to integrate to BAS shall be through BACnet/IP, BACnet/Ethernet, BACnet MS/TP, or LON through on board communication adapters and shall be field configurable/upgradable.

C. Integration Points

As a minimum, the device shall provide these typical integration points (list not all inclusive).

Table 1. Typical Integration Points (not all inclusive)

Point Name Description Data Type Read/Write

Alarm Points (available on any digital valve controller)

JAM_ALARM The valve is unable to reach the commanded set point

Binary Read Only

FLOW_ALARM The pressure switch detected low static pressure

Binary Read Only

Flow Points (available on any digital valve controller)

EFF_VLV_FLOW_CMD Valve flow set point Analog Read Only

VLV_FLOW_FDBK Valve flow feedback Analog Read Only

Points Associated with a Hood Valve Controller

BROKEN_SASH_CABLE Alarm indicating sash sensor cable or bar is broken

Binary Read Only

SASH_HEIGHT_ALARM Alarm indicating sash input signal exceeds maximum sash height set point

Binary Read Only

HOOD_OVERRIDE Alarm indicating emergency override function on the fume hood monitor is active

Binary Read Only

EFF_VLV_FLOW_CMD Valve flow set point Analog Read Only

VLV_FLOW_FDBK Valve flow feedback Analog Read Only

SASH_OPEN_PERCENT Calculated Sash Opening (0-100%) Analog Read Only

FACE_VELOCITY Calculated face velocity Analog Read Only

FACE_VELOCITY_SETPT Calculated face velocity set point Analog Read Only

USER_STATUS Zone Presence Sensor status- Hood Occupied (normal) or Unoccupied (setback) mode

Binary Read Only

Points Associated with Emergency Mode Control

EFF_EMER_MODE Present emergency mode status (none, 1, 2, 3, or 4 active)

Multi-State Read Only

EMER_MODE_CMD Commanded emergency mode state (1, 2, 3, or 4)

Multi-State Read/Write

Points Associated with Zone Balance

OFFSET_SETPT Zone offset set point Analog Read/Write

OFFSET Calculated zone offset Analog Read Only

TOTAL_ZONE_SUPPLY Total of all networked and non-networked supply devices

Analog Read Only

TOTAL_ZONE_EXHAUST Total of all networked and non-networked exhaust devices

Analog Read Only

TOTAL_CNST_EXH_FLOW

(where applicable)

Entered value of constant volume exhaust devices

Analog Read Only

TOTAL_CNST_SUP_FLOW

(where applicable)

Entered value of constant volume supply devices

Analog Read Only

TOTAL_ADDL_EXH_FLOW

(where applicable)

Total of all hard-wired (non-networked) exhaust devices

Analog Read Only

TOTAL_ADDL_SUP_FLOW

(where applicable)

Total of all hard-wired (non-networked) supply devices

Analog Read Only

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Point Name Description Data Type Read/Write

Points Associated with Air Change Rate

AI_ACH_ZONE Air Change Rate Feedback AI Read

AO_ACH_OCC Occupied Air Change Rate Command AO Read/Write

AO_ACH_STANDBY Stand-by Air Change Rate Command AO Read/Write

AO_ACH_UNOCC Unoccupied Air Change Rate Command AO Read/Write

G. The Laboratory Airflow Valve integration shall support distributed network architecture from room level BACnet MS/TP segment or LON FTT-10 bus to a dedicated BACnet MS/TP segment, building BACnet/Ethernet, or BACnet/IP building backbone using single or multiple IP addresses. Backbone communication protocol must be field selectable/upgradable.

H. Communication between devices in a room or zone will operate independent of building level communications maintaining integrity of the airflow.

PART 3 - EXECUTION

3.01 INSTALLATION

A. The Laboratory Airflow Valve supplier shall coordinate with the Mechanical Contractor and BMS/BAS contractor to insure all components are installed, powered and connected for a fully functional system.

B. Mechanical Contractor shall install laboratory airflow valves per manufacturer recommendations.

C. Install all equipment provided under this section and associated control wiring in compliance with

Section 230900 - Instrumentation and Controls for HVAC.

3.02 SYSTEM START UP

A. System start-up shall be provided by a factory-authorized representative of the Laboratory Airflow

Valve manufacturer. Start-up shall include calibrating the fume hood monitor and any combination sash sensing equipment, as required. Start-up shall also provide electronic verification of airflow (fume hood exhaust, supply, make-up, general exhaust or return), system programming and integration to BMS (when applicable).

The balancing contractor shall be responsible for final verification and reporting of all airflows. Hood certification is not provided under this section.

3.03 CLOSEOUT ACTIVITIES

A. Training

1. The Laboratory Airflow Valve supplier shall provide owner training. The training will provide an overview of the job specific airflow control components, verification of initial fume hood monitor calibration, general procedures for verifying airflows of air valves and general troubleshooting procedures.

2. Operation and maintenance manuals, including as-built wiring diagrams and component lists, shall be provided for each training attendee.

END OF SECTION 23 09 95.00