Attachment 5 - Cleanroom Rebalance 35 Report.pdf

Burdette, Koehler, Murphy and Associates, Inc.

6300 Blair Hill Lane, Suite 400 | Baltimore, MD 21209 | 410.323.0600 | bkma.com

National Institute of Standard and Technology Gaithersburg, MD, Building 215

Cleanroom Re-Balance

(35% Submission)

December 6, 2019

BKM No. 19146.01

NIST – Rebalance Airflow in the Building 215 Cleanroom 35% Submission

December 6, 2019 Page No. ii

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Mechanical/Electrical Engineers

Table of Contents

Overview………………………………………………… Existing Conditions……………………………………… Conditions Analysis & Recommendations…………………………………… 4-5 Other Recommendations ……………………………………… Appendix One – Drawings .................................................................................Tab 1 Appendix Two – Existing Photos........................................................................Tab 2 Appendix Three – AECOM Report ......................................................................Tab 3

December 6, 2019 Page No. 1

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Overview

The scope of this narrative was to document and evaluate the existing conditions air systems of the AML Building 215 at the National Institute of Standards and Technology (NIST) facility in Gaithersburg, Maryland. A 2018 report by AECOM, attached in Appendix Three, documented some of the air system airflows and deficiencies. After the existing conditions have been evaluated, recommendations are to be provided to correct existing deficiencies, replace system components and rebalance the cleanroom airflows to meet the current installed equipment’s requirements. The area of discussion encompasses a majority of the existing Building AML 215 building. BKM was retained to perform a documentation of the existing conditions, analyze of the building airflow system and provide recommendations to correct the previously identified and evaluated deficiencies. This report includes recommendations as well as documentation for the following components of the air systems for Building 215:

Removal and Replacement of the HEPA filters.

Repair or Replacement of all variable air volume (VAV) terminal units.

Replacement of all airflow measuring stations (AFM) Replacement of all magnehelic gauges Repair ductwork where required.

Correct pathways for return air.

Testing of air handling units (AHU) and exhaust fans.

Calibration and verification of AFMs.

Rebalance of the existing cleanroom Correction of airflows for lobby and exhaust systems.

This narrative describes the existing conditions of these items and provides general recommendations that will then be utilized as part of construction documents to allow for corrections to be implemented. Also, included in this narrative are a list of additional recommendations to allow for additional monitoring, preventative maintenance and energy savings opportunities.

The existing systems will continue to be analyzed to determine the existing airflows and changes from the original balancing and installed construction. As the existing systems are being identified, input from the facilities and research staff will be required to provide information for the current unknowns of the tools requiring exhaust. As part of this analysis it is assumed that all tools are currently connected to the appropriate exhaust system, which include; acid exhaust, solvent exhaust, hydride exhaust, gas cabinet exhaust, vacuum pump exhaust and general exhaust. Additional input from the NIST office of facilities and property management will be needed to determine if all air change rates and airflows should be re-balanced to the original design or if locations where airflows have been reduced are acceptable to maintain the cleanroom specifications. Upon receipt of the original balancing report or commissioning report, BKM can provide additional recommendations to assist in the final requirements for air change rates of the cleanroom and cleanroom support spaces.

Included in appendices of this narrative are documents to supplement the remediations for the existing building deficiencies and to begin to develop construction documents that will be used by a contractor to modify and rebalance the Building 215 air systems. Additionally, Appendix Two includes photos of existing conditions and installed equipment. Lastly, Appendix Three includes the 2018 AECOM report which describes the investigation of the deficiencies as well as a testing report of the current airflow measurements.

December 6, 2019 Page No. 2

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Existing Conditions

The Advanced Measurement Lab (AML) complex was constructed and completed in 2005, and consists of five buildings. Building 215 is the cleanroom facility within the AML complex and houses 1,800 square meters of cleanroom, including 750 square meters of Class 100 space. The cleanroom operates with a constant volume airflow with approximately 120 air changes for the Class 1000 spaces and 300 air changes per hour for the Class 100 areas.

The cleanroom maintains pressure through the operation of two make-up air units (AHU-103, AHU-104) ducting make-up air to recirculating air handling units intended to provide pressurization for the cleanroom. The lab recirculating air handling units provide the air change rates to the cleanroom by a ducted supply to a plenum of supply high-efficiency particulate air devices. The return air then migrates through a perforated raised floor to the adjacent service galley and back to the plenum return of the recirculating air handling unit. Within the cleanroom there are three exhaust systems that exhaust various tools within the Class 100 space. The three cleanroom exhaust systems (acid, solvent & hydride) each have thirteen branch ducts with airflow monitoring stations and motor operated dampers which modulate to control the pressure within the corresponding system.

BKM is in the process of completing an investigation of the building HVAC systems to identify existing systems and their deficiencies as identified in the “preliminary survey report”. As part of this investigation and building survey, subsequent construction documents will be produced to identify and correct the following known building deficiencies:

HEPA filters: The existing HEPA filters are original to the building, and are experiencing increased pressure drops, which requires the associated recirculating AHU fans to operate at an increased fan speed and energy usage.

VAV terminals: The existing VAV terminals associated with non-classified areas AHU-105, AHU-106 & AHU- 107 have all had issues with reporting airflow to the building automation system (BAS) as indicated in the AECOM report.

Replace AFMs: The existing Ebtron airflow measuring stations are reporting inaccurate measurements. In several locations the AFMs are not reporting to the local readout.

Replace magnehelic gauges: The existing magnehelic gauges installed on EF-102 through EF-105 have incorrect operating ranges for the operating range of these fans. Magnehelic gauges installed within the cleanroom utilize incorrect operating ranges.

Repair ductwork as needed: Undersized and modified ductwork has been identified on the exhaust system as new tools have been added to the exhaust systems. The lack of volume dampers within the existing exhaust system has also prevented the exhaust systems to be properly balanced upon the installation of a new tool in the cleanroom space.

Return Air Pathways: Several locations were identified by the AECOM report as locations with limited return pathways. The lack of return air pathways has led to issues with space pressurization in the areas surrounding the Class 1000 space.

Testing of AHUs / EFs: Testing of the existing exhaust system and air handling systems was completed by AECOM to compare measured conditions with the original balancing reports and current BAS reported data. It was noted that several of the recirculating systems are currently operating at lower fan speeds than their original operation. The recirculating air handling units that are operating at reduced flow rates supply air to the Class 1000 corridors or the gowning areas of the cleanroom space. It is appears based on the original design of the fans these units are capable of providing these spaces with approximately 120 air changes per hour, but have been reduced to approximately 75 air changes per hour. This may be due an energy conservation measure, in conjunction with the reduced air change rate meeting the requirements of the users and space classification. This reduction of airflow still needs to be confirmed with NIST and the cleanroom specifications.

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Calibration & Verification of AFMs: As previously stated under the “replace AFM” section, the existing airflow measuring stations are not reporting accurate measurements and are believed to be faulty or dirty.

Rebalance of Cleanroom: The existing cleanroom has not been completely rebalanced in the past ten years to accommodate additional tools, which require exhaust, as they have been installed. This has pushed some of the exhaust systems beyond design capacity. Refer to Appendix One for drawings identifying the existing ductwork locations and schematics. As the investigation and analysis is completed these documents will be updated to identify all ductwork associated with the cleanroom systems and its design and previously measured airflows, which will be rebalanced under the conditions analysis.

Correct airflow in lobby and other exhaust systems: The existing Building 215 air systems have not been fully rebalanced since changes have been made to several air systems. Due to changes within the hydride, solvent and acid exhaust systems the building’s overall pressurization and system balance has shifted from the original design. Additional review of these systems will be required to identify systems that have reached or exceeded their original design capacity. Refer to Appendix One for drawings identifying the existing ductwork locations and schematics. As the investigation and analysis is completed these documents will be updated to identify all ductwork associated with the lobby and exhaust systems and its design and previously measured airflows, which will be rebalanced under the conditions analysis.

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Conditions Analysis & Recommendations

For the basis of this narrative a portion of the cleanroom has been analyzed and reviewed, this area includes Room A102, A102-1 & A103-1 as well as the basement and penthouse. These documents can be found within Appendix One and will be further developed as approach and airflows are confirmed.

HEPA filters: New HEPA terminal filters will be installed within the Class 100 and 1000 spaces to replace the existing original filters. The AHU HEPA filters in the recirculating and make-up air units are replaced under a normal preventative maintenance schedule and will be completed under regularly scheduled maintenance.

The replacement of the filter will allow the associated recirculating AHU fans to operate at a reduced fan speed and reduce the overall fan energy usage. The quantity and locations of the existing HEPA devices are indicated in Appendix One, Drawing 215-M102.

VAV terminals: It is currently unknown if the issue with the existing VAV terminals associated with AHU-105, AHU-106 & AHU-107 is due to faulty control terminals, or if there is a control issue between the VAV terminal and the building automation system (BAS) as indicated in the AECOM report. This item will require testing from a testing and balancing contractor in conjunction with the BAS operators to determine if the report issues are due to faulty controls or a communication error. If it is found that the existing Nailor VAV terminals controllers have begun to fail, it is recommended that these controllers are replaced or if funding is available the terminal units are replaced in kind. Equipment plans will continue to be developed to indicate air terminal units to be tested and schedules to indicate final balancing airflow values.

Replace AFMs: The existing Ebtron airflow measuring stations may be reaching the end of their useful life of operation. The manufacturer has confirmed that the installed devices do not require calibration. The AECOM discrepancies are currently being reviewed by the manufacturer. It is recommended by the manufacturer that an installed probe is removed to identify if any substance build-up has accumulated on the sensors, that may be affecting the accuracy of these devices. It has also been recommended that sensor readouts are verified for correct settings based on their initial factory settings including their installed ductwork sizes. The installed Ebtron devices perform the airflow calculation through a process called thermal dispersion, rather than pitot tube measurement that would require regular calibration. The existing sensors could be removed, cleaned and verified for operation and accuracy or completely replaced as their expected life ranges from 10-15 years. It should be noted that the sensors are not expected to have their accuracy drift, but rather a failure of the sensor which will report a failure to the local readout. If it is deemed that the existing sensors have reached the end of their useful life the existing Ebtron devices and readouts will be replaced with new airflow measuring stations and local readout stations, which BKM ultimately recommends at this time due to the age of the current installation. As part of this replacement it is recommended that the existing thirteen branch dampers on the solvent, acid and hydride systems will be replaced with new pressure independent air valve, such as Accu-valve or Phoenix exhaust air terminals. The new exhaust valves will allow each branch ducts to operate off of pressure in the ductwork and modulate the damper to maintain flow if a tool is removed or shuts off due to intermittent use. The airflow measuring stations are indicated on the airflow schematic and will be located on a part plan view typical of Drawing 215-M201. This documentation will be duplicated for each set of recirculating air handling units.

Replace magnehelic gauges: The existing magnehelic gauges installed on EF-102 through EF-105 and the cleanrooms should be replaced. The exhaust gauges will be installed with an appropriate operating range for each fan. The replacement magnehelic gauges installed within the cleanroom will utilize a -0.25” wc to +0.25” wc tolerance to indicate if the Class 100 space drops to a neutral or negative pressurization. It is recommended that all gauges are tied to the BAS for trending, monitoring and alert purposes. Refer to the Appendix One drawings for locations.

Repair ductwork as needed: The installed exhaust ductwork is currently be analyzed to identify any locations of undersized ductwork that would require modification. The analysis of the exhaust systems may require some

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Mechanical/Electrical Engineers input from the NIST OFM staff and researchers to establish correct flowrates from equipment that has not been balanced or may not have a set airflow requirement. It is recommended that each tool be installed with a volume damper, including replacing existing failing dampers, to create a uniform system that can be rebalanced as required when new equipment is installed within a lab. A recommended procedure for adding a tool to the exhaust system will be outlined to isolate the rebalance of the cleanroom air systems to the branch ductwork affected by a system modification. This procedure would be dependent on the scale of the modifications to the air systems. Recommendations for typical repair of failing joints or connections will be made as they are identified to ensure the safety of cleanroom operators and staff.

Return Air Pathways: Due to a large quantity of air that is collected along Corridor CO-D-1 a wind tunnel effect is created in this area. A new above ceiling return air transfer will be installed to allow air to migrate back to AHU-113 & AHU-115 freely without entering Room D107. This will relieve air transfer across the door, allowing it to open and close freely. Room D107 is designated as a chemical change-out room. This space is recommended to be exhaust rather than allowing air to recirculate back to other adjacent spaces. The existing supply air within Room D107 supplies 120 air changes per hour, so ductwork modifications will be required to exhaust the air within Room D107 to the outdoors rather than allowing it to migrate to the return of AHU-113.

These modifications can be found in Appendix One.

Testing of AHUs / EFs: Further recommendations will be made as analysis of the existing exhaust systems and laboratory tool requirements. It is expected that several spot check locations will be completed to determine if an existing sensor or sensors are accurate or there is a reporting issue with the BAS. Equipment plans will continue to be developed to indicate equipment to be tested and schedules to indicate final balancing airflow values.

Calibration & Verification of AFMs: As previously stated under the “replace AFM” section a testing balancing contractor will first verify that the existing Ebtron airflow stations are not accurately reading the airflow and will be replaced in kind as required. It is recommended that initial testing and investigation be completed prior to replacement to ensure that a newly installed device maintains its expected tolerance and longevity.

Rebalance of Cleanroom: After the completion of full analysis of the cleanroom supply, return and exhaust systems along with any associated ductwork changes to accommodate current lab tool installations, the Building 215 air systems will be rebalanced to a provided airflow schematic to be provided as part of the final construction documents. The equipment to be included in this rebalance is as listed: AHU-101A through 101T, AHU-102A through 102D, AHU-103, AHU-104, AHU-108A, AHU-108B, AHU-109, AHU-110A, AHU- 110B, AHU-111A through 111D, AHU-112, AHU-113, AHU-114, AHU-115, EF-101A, EF-101B, EF-102A, EF-

102B, EF-105A, EF-105B & EF-114.

Correct airflow in lobby and other exhaust systems: After the completion of full analysis of the Building 215 supply, return and exhaust systems along with any associated ductwork changes to accommodate as-built conditions, the Building 215 air systems will be rebalanced to a provided airflow schematic to be provided as part of the final construction documents. The equipment to be included in this rebalance is as listed: AHU- 105, AHU-106, AHU-107, AHU-123, EF-103, EF-104, EF-106, EF-108, EF-109, EF-112, EF-122, EF-123, RF-105 & RF-107.

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Other Recommendations

As a part of the review of the building system BKM believes there are additional modifications that could be considered for the improvement of the existing cleanroom and adjacent spaces operation.

Ensure a consist preventative maintenance schedule is in place to replace the HEPA and carbon filters located in the recirculating and make-up air units.

Install differential pressure sensors across a select number of cleanroom terminal HEPA filters to alert the BAS due to an increase in pressure drop across the filter, indicating the filters are loaded and requiring changing. This will allow for filter loading and fan energy to be monitored and trended.

Install differential pressure sensors at the Class 100 doors to alert the BAS that a space has dropped below a specified pressure differential to prevent any potential transfer of dirt or dust that may damage the on-going research.

It was noted that during the field investigation survey, that the cleanroom doors between the Class 1000 and viewing corridor are not gasketed. If these doors and other openings were sealed, it would ensure additional pressurization within the cleanroom, which would allow for an overall reduction in make-up air required. As 100% make-up air requires heating and cooling, a reduction in the usage of make-up air would provide a significant energy savings for the cleanroom operation.

It is strongly recommended that commissioning services are provided after all modifications and re-balancing activities have been completed to verify that the air systems are indeed operating as the construction documents indicate.

Engaging Environments Enhancing Value Engineering Life Spaces

Appendix One – Drawings

Appendix Two – Existing Photos

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Typical Airflow Measuring Station Readouts, Penthouse

Typical Airflow Measuring Station in Exhaust Ductwork, Penthouse

Duct Static Pressure Sensor, Penthouse Exhaust Branch Motor Operated Damper, Penthouse

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Perforated Raised Flooring, Cleanroom

HEPA Filter Device, Cleanroom

Variable Air Volume Terminal with Hot Water Reheat, Visitor Corridor

Magnehelic Gauge, Cleanroom Corridor

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Cabinet Exhaust Branch Damper, Basement

Hydride Exhaust and Supply Ductwork, Distribution Level

Gas Exhaust Cabinet, Basement

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Tool Exhaust Connection, Service Corridor Tool Exhaust Damper, Service Corridor

Tool Exhaust Connection, Service Corridor Tool Exhaust Connection, Service Corridor

December 6, 2019 Page No. 5

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Unsealed Exhaust Duct Connection, Service Corridor

Cleanroom Recirculating Unit Return Plenum, Distribution Level

Appendix Three – AECOM Report

Building 215 Rebalance Project

CLIN 1 Report

Drafted by:

Johnny Murray, CxA

Submitted to:

National Institute of Standards and Technology c/o Robert Hellmuth

100 Bureau Drive Gaithersburg, MD 20899 http://www.apsicm.com/

Table of Contents

I.

II.

III.

CLIN 1 Overview 003

Known HVAC Issues 003

Discovered HVAC Issues 004

IV. Test Results Report

A.

B.

C.

D.

E.

F.

G.

H.

AHU and Exhaust Fan Operating Points 008

EBTRON Air Flow Monitor Verification Results 010

AHU 105, 106, and 107 VAV Test Results Summary 015

TAB Report 018

AHU and Clean Room Magnehelic Gauge Calibration Summary 255

HEPA Filter Pressure Drop Sample Test Summary 261

AHU Installed Filter Summary 263

Room Air Pressure Relationship Summary 265

III. FLOOR PLAN Appendix 269

NIST Rebalance Bldg 215

CLIN 1 Test and Balance Project Report Date of Activity: February 2018 to present. Report # CLIN 1

Document Examination Site Observation X To: Robert Hellmuth cc:

Project: Rebalance NIST Building 215 Subject: CLIN 1 TAB Report Ref. Doc: Original TAB Report, Original Site Plans, and updated Site Plans.

Summary:

CLIN 1 TAB Introductory Overview

The NIST Bldg. 215 CLIN 1 TAB effort by AECOM includes a complete readout of existing HVAC systems as-found with few system setpoint adjustments under normal operating conditions. The only system setpoint adjustments that were made involved the modulation of the VAV boxes to their maximum airflow setpoints through BAS airflow setpoint overrides.

The VAV boxes associated with AHUs 105, 106, and 107 have modulating airflow setpoints (in most cases) which respond to associated space conditions under normal operation. This VAV equipment is located outside of the Clean Room envelope. The CLIN 1 TAB effort was for testing all AHUs and Exhaust Fans listed in the Statement of Work include all Bldg. 215 AHUs, Exhaust Fans (with a few exceptions), calibration verification of room and AHU and EF Magnehelic gauges and calibration verification of the EBTRON airflow monitoring stations (AFM), as well as, a summary of actual as-found pressurization relationships of most of the Bldg. 215 rooms to their adjacent rooms. The following is the report of our findings with commentary.

HVAC System Issues

1. Wind tunnel effect along corridor CO-D-1

• Cause: Limited return air pathway for AHU 115 and AHU 113 due to lack of above ceiling transfer openings. The return air for these units moves through the corridor into adjacent corridor CO-A1-1.

• Initial Recommendation: Add ceiling transfer grilles to Area CO-D-1. Install an above-ceiling transfer opening between CO-D-1 and D107 (Chem.

Change-out).

Date of Activity: February 2018 to present. Report # CLIN 1

2. D107 (Chem. Change-out): The doors to CO-D-1 and D108 are do not close automatically due to inward air pressure.

• Cause: Limited return air pathway AHU 113 due to lack of above ceiling transfer openings. The path of least resistance for return air of this unit is through the two sets of doors serving D107.

• Initial Recommendation: Add ceiling transfer grilles to Area CO-D-1. Install an above-ceiling transfer opening between CO-D-1 and D107 (Chem.

Change-out).

• Further Recommendation: D107 (Chem. Change-out) should be an exhaust only room. Seal all return air grilles to AHU 113 in this room. Further calculations for exhaust capacity and air changes for D107 will have to be developed. The exhaust duct from EF101 serving D107 is a 250 mm (10”) duct which may have to be enlarged to a 300 MM (14”) duct to provide enough exhaust air to meet D107 exhaust air quantity and air exchange rates for the room.

3. Chemical fumes are noted when the Fume Hood in A105 is utilized.

• Cause: The Fume Hood is deficient on airflow.

• Initial Recommendation: Limit usage of the hood to a minimum, if at all, until the following: Increase exhaust airflow setpoint for Solvent Damper # 12.

Retest and Balance system. Setpoint increase calculation has not yet been developed.

• Further Recommendation: Re-duct the fume hood in A105 to be served by an individual 400 mm tap off of the exhaust runout. Currently, the hood is served by an exhaust duct tap that also has 2 runouts serving tools that have critical airflows which alarm when not within a BAS monitored range.

Other HVAC System CLIN 1 Discovered Issues

1. AHU-115 serving D105 Gowning: Room D105 (Class 1000) is positively pressurized to both the adjacent CO-D-1 corridor and the Class 100 Room B101.

• Cause: The supply air returns to the unit through two transfer grilles in D105 one of which is often blocked by gowns hung near the transfer grille.

Further, since the AHU 115 return is not specifically ducted to D105, more air is being returned to the AHU than is being transferred back through the grilles causing excessive air pressure in D105 which overcomes the air pressure in B101 Class 100 area.

2. AHU-107: The BAS reports that the relief air damper position is 0.0% (closed).

Actual conditions show the damper is open approx. 30%. The relief/return plenum is under positive pressure i.e. air is being relieved (exhausted) from the plenum (building) where the BAS is not calling for this action.

• Initial Recommendation: Investigate and correct damper operation.The operation of the relief dampers does correspond to BAS Commands.

• The supply air EBTRON AFM and return air EBTRON AFM report radically different values to the BAS than what was tested. The Monitors need to be investigated, then repaired or replaced.

3. AHU-105:

• The BAS reports that the relief air damper position is 0.0% (closed). Actual conditions show the damper is open 100%. The relief/return plenum is under negative pressure i.e. outside air is being introduced into the plenum (and building) where the BAS is not calling for this action. Initial Recommendation: Investigate and correct damper operation.

• AHU-105: The Supply and Return Air AFM Local Ebtron Display are blank (not reporting). Highly inaccurate airflow values are being reported by the BAS. Initial Recommendation: Replace or repair and recommission these EBTRON AFMs.

4. The HEPA filter diffusers pressure drops were tested on the clean room AHU systems that could be operated with fan speeds at or near design airflow or originally tested conditions. The filters were tested by manufacturer recommended methods. See Table below for further information.

• Initial Recommendation: Based on the manufacturers recommendations concerning pressure drop testing across the filter diffusers (indicating loading), age of the filters (16 yrs. old) and current test findings, planning for changing of the filters in the near future should be implemented.

5. AHU-6 VAV system serving the SubFab: The Sum total airflow of the VAVs served by AHU-106 are either reporting airflow rates that deviate far beyond the actual tested airflows. AECOM recommends that each of these VAVs be diagnosed for deficiencies via point to point checkout to determine the deviation cause. Several of these VAVs are not responding to BAS damper commands.

6. General Notes on AHU 105, 106, and 107 VAV boxes.

• The majority of VAV boxes tested on these systems exhibited control issues mainly concerning the reporting of airflow volumes within an expected range. The BAS setpoints, VAV inlet sizes, controller hose connections, and original airflow correction factors were all found to be correct. A few airflow volume setpoints were found to be altered, but within a reasonable range.

• The VAV summary included below has highlighted airflow values which indicate a problem with reporting accurate (within range) airflows by the BAS. AECOM could not determine whether it is a BAS problem or a VAV controller problem.

7. EF 105 Hydride Exhaust:

• The original scheduled airflow quantity is 1715 L/s. The fan total was tested at 2390 L/s. The fan is mostly being used as a general exhaust above the ceiling in the return air plenum for the Clean Rooms and in the SubFab with the exception of serving the Furnaces in B106 and several VMBs in B106-1 and the SubFab. Initial recommendation: Cap the runouts that are not connected to a specific tool and reset the BAS (EBTRON) setpoint to 0 L/s. This will reduce power consumption and wear on the fans, as well as, improve positive pressurization to the Clean Room envelope.

• The ducts from EF 105 serving B106-1 and B106 should be separately monitored and controlled by an EBTRON AFM dedicated to the respective ducts. Currently, one monitor is measuring 2 ducts of differing sizes.

8. EF 102 Solvent Exhaust: The original HVAC design for this system includes four

(4) open ended 300 mm (12”) ducts installed at deck level high in return air plenum for the Clean Rooms. These open ended ducts are not specifically exhausting Solvent fumes and in effect are holes in the duct being used as general exhaust. Initial Recommendations: Cap off these ducts. This will reduce power consumption and wear on the fans, as well as, improve positive pressurization to the Clean Room envelope.

9. General Note on EFs 102 through 105:

• The Magnehelics gauges installed for fan total static at the fans are under-ranged for the operation range of these EFs. The gauges are either pegged at their high limit or failed. The gauges need to be replaced with 0-1500 Pa ranged gauges.

10. AHU 102 A, B, C, and D: The fans for these AHU are operating at a reduced speed (by command) compared to the original TAB report. Initial Recommendation: Increase the commanded speed of the AHU back to at least the original TAB Report speed. The B101, B102, B103, and B104 Clean Room sector’s pressurization relationship to the surrounding Class 1000 B-side corridor will be at a higher level with increased speed. Currently this sector is < 0.15” positive to the Class 1000 B-side corridor.

11. General Note on AHU Fan Speeds:

• With the exception of the VAV AHUs, AHUs 112,113, and 115, and AHU-111, the AHU systems should be verified to be operating at their original TAB Report VFD speeds. AECOM noted cases where the drives were operating at a lower speed the BAS command. A few cases were noted that the drive speed command from the BAS was lower than originally tested e.g. AHU 102 A, B, C, and D.

12. See the following table summaries for further information concerning original as-balanced setpoints for supply and exhaust systems, tested airflow values as compared to BAS reported values (EBTRON and VAV boxes), as well as, Magnehelic Gauge calibration validation, and TAB Report forms (filled-out) to date.

By:

Johnny Murray, AECOM 07-3-2018

Signature Date

PROJECT

SUMMARY:

ORIGINAL CURRENT ORIGINAL CURRENT

101 A 9805 9877 9650 51 51.3

101 B 10545 10544 9744 49.8 51.3

101 C 12950 12740 10078 60 60

101 D 12950 12873 11833 60 60

101 E 9805 9830 8710 60 45.5

101 F 10915 10846 8864 49.2 45.5

101 G 11470 11586 10690 51 51.4

101 H 9250 9363 9074 51 51.4

101 I 12395 12466 6090 57 28.7

101 J 12950 12855 6344 57 28.7

101 K 10915 10856 10425 49.8 51.1

101 L 9805 9930 10246 49.8 51.1

101 M 10360 10445 8108 49.8 39.6

101 N 11100 11023 8647 49.8 39.6

101 O 12950 12813 11058 60 54.8

101 P 12210 11805 10588 60 54.8

101 Q 12580 12513 12295 57.6 60 (Byp)

101 R 12950 12835 12289 57.6 60 (Byp)

101 S 12950 12669 7245 60 37

101 T 11470 11487 6509 60 37

102 A 7770 7591 3806 60 33.9

102 B 7770 7591 3806 60 33.9

102 C 7770 7591 3806 60 33.9

102 D 7770 7592 3806 60 33.9

103 15199 15184 14806 51 50.8

104 13589 13672 14403 45 48.9

105 11565 11527 8147 58 36

106 14155 14494 16614 58 60 (Byp)

107 4190 4190 3521 55 37.5

108 A 9620 9501 8712 60 60

108 B 9620 9501 8713 60 60

REMARKS:

AHU and EF TEST

SUMMARY

NIST- REBALANCE AIRFLOWS IN BUILDING 215 SYSTEMS Bldg. 215 AHUs

AHU DESIGN, ORIGINAL TAB VS CURRENT OPERATING POINTS TEST APPARATUS Micromanometer

NOTES

98%

AHU # Design L/s Test Total L/s Operating Speed

Hz

% CHANGE FROM

Orig TAB

1)

1)

1)

1)

78%

78%

98%

96%

1)

1)

86%

90%

1)

50%

50%

1)

1)

57%

57%

1) The AHU is operating at a notably different speed than reported in the Original TAB report.

92%

Johnny Murray

92%

79%

92%

96%

103%

98%

92%

89%

82%

92%

97%

49%

49%

TEST DATE: READINGS BY

50%

50%

1)

105%

71%

115%

84%

1)

1)

1)

SUMMARY

ORIGINAL CURRENT ORIGINAL CURRENT

109 18500 18479 18878 57.5 59.1

110 A 14880 14648 16707 54 60

110 B 14880 14886 16239 54 60

111 A 15700 15687 5398 60 24.1

111 B 15700 15686 5397 60 24.1

111 C 15700 15676 5146 60 22.7

111 D 15700 15676 5145 60 22.7

112 8170 7121 5579 60 47.9

113 9305 9511 7330 60 42.2

114 9990 10034 9485 57 60

115 10800 9622 6960 60 47.4

SF 123 470 491 272 no VFD no VFD

EXHAUST FANS

EF 101A 7110 4976 59

EF 101B 7110 4975 52.2

EF 102A 7060 4632 56.3

EF 102B 7060 4631 52.2

EF 103 3750 2158 60

EF 104 6000 5145 60

EF105A 1715 1195 60

EF105B 1715 1195 60

EF 106 3700 2300 no VFD no VFD

EF 108 370 335 no VFD no VFD

EF 109 2320 2156 no VFD no VFD

EF 112 400 0 no VFD no VFD

EF 114 1760 1392 no VFD no VFD

EF 122 440 483 no VFD no VFD

EF 123 470 465 no VFD no VFD

REMARKS:

AHU and EF TEST

SUMMARY

NIST- REBALANCE AIRFLOWS IN BUILDING 215 SYSTEMS Bldg. 215 AHUs

AHU DESIGN, ORIGINAL TAB VS CURRENT OPERATING POINTS TEST APPARATUS Micromanometer

N/A

2)

2)

% Dev from Design

66%

66%

70% 2) 3) 70% 2) 3)

AHU # Design L/s Test Total L/s Operating Speed

Hz

% CHANGE FROM

Orig TAB

13788

11249

62%

91%

70% 2) 70% 2)

N/A

58%

86%

79%

110%

99%

NOTES

1)

1)

102%

114%

109%

34%

34%

33%

33%

78%

77%

1) The AHU is operating at a notably different speed than reported in the Original TAB report.

2) Both fans in operation. 3) Paired Fan is not operating at the same speed as reported by the VFD.

TEST DATE: READINGS BY Johnny Murray

95%

72%

55%

1)

N/A

N/A

N/A

N/A

N/A

1)

1)

1)

1)

1)

1)

0%

93%

STPT SUMMATION

ORIGINAL CURRENT

1 OED 2470 2232 5.77 2250

2 OED 2560 2250 5.72 2230

3 OED 2470 2470 6.35 2476

4 OED 2560 2085 1.77 690

5 OED 2470 1300 3.40 1326 2)

6 OED 1080 100 0.55 110

7 OED 4135 6700 12.20 7930 1)

8 OED N/G 300 5.00 300

17745 17437 17312

NOTES: 1) The damper is 100% open and not controlling to setpoint. 2) The EBTRON is >than 10% out of calibration indicating a need for investigation or repair.

TEST DATE: 2/14/18 READINGS BY Johnny Murray

Total 14086

AHU 110 A, B, AHU 108 B 1000 x 650 0.65 10.19 6624

AHU-112 MA 300 x 200 0.06 4.43 266

AHU 101 Q, R 600 x 650 0.39 1.9 741

AHU 111 A, B 450 x 450 0.20 0.44 88

AHU 101 I, J 600 x 650 0.39 5.62 2192

AHU 101 O, P, AHU 102D 600 x 650 0.39 1.49 581

AHU 101 A, B 600 x 650 0.39 4.98 1942

AHU 101 G, H, AHU 102B 600 x 650 0.39 4.92 1919

AHU EBTRON TEST SUMMARY

NIST- REBALANCE AIRFLOWS IN BUILDING 215 SYSTEM/UNIT Makeup Supply Air / AHU-103

OUTLET MANUFACTURER N/A TEST APPARATUS Micromanometer / Pitot

BAS

FLOW

REPORT

NOTES

NO. TYPE SIZE AREA

AIRFLOW L/s

Setpoint VELOCITY M/s AIRFLOW L/s

UNIT SERVED

OUTLET MEASURED Calculated

EBTRON

REPORT

ORIGINAL CURRENT

1 OED 2560 2470 6.20 2418

2 OED 2470 2090 5.40 2106

3 OED 2560 2085 5.30 2067

4 OED 2470 2500 6.45 2515

5 OED 1095 1400 3.50 1470 2)

6 OED 550 500 2.60 520

7 OED 4200 4000 6.40 4160

8 OED N/G 290 2.70 270

15905 15335 15526

AHU 104 MECH RM TOTAL TRAVERSE 6.10 13664

NOTES:

2/14/18

Note 1)

TEST DATE: READINGS BY Johnny Murray

1) AHU 113 has 2 Ebtrons installed on its MAU duct. FIO 2) The EBTRON is >than 10% out of calibration indicating a need investigation or repair.

TOTAL

2800 x 800 2.24 5.3 11872

AHU-113 (NOTE 1) 500 x 200 0.10 2.44 244

TOTAL 14403

AHU 111 C, D 450 x 450 0.20 2.93 586

AHU 101 S, T, AHU 109 1000 x 650 0.65 5.28 3432

AHU 101 M, N 600 x 650 0.39 6.89 2687

AHU 114 , AHU 108A 600 x 700 0.42 2.2 924

AHU 101 E, F 600 x 650 0.39 5.7 2223

AHU 101 K, L, AHU 102C 600 x 650 0.39 5.77 2250

AHU 101 C, D, AHU 102A 600 x 650 0.39 5.9 2301

UNIT SERVED

OUTLET MEASURED MEASURED

EBTRON

REPORT Notes

NO. TYPE SIZE AREA

AHU EBTRON TEST SUMMARY

NIST- REBALANCE AIRFLOWS IN BUILDING 215 SYSTEM/UNIT Makeup Supply Air / AHU-104

OUTLET MANUFACTURER N/A TEST APPARATUS Pitot Tube/ Micromanometer Traverse

BAS

REPORT AIRFLOW L/s VELOCITY M/s AIRFLOW L/s

DUCT 4.40 2151 1)

DUCT 5.71 2667 1)

DUCT no report 20000 1)

DUCT no report 20000 1)

DUCT 9.10 280 1)

NOTES:

TEST DATE:

Note 1) NOTES: 1) The damper is 100% open and not controlling to setpoint. 2) The EBTRON is >than 10% out of calibration indicating a need for investigation or repair.

READINGS BY Johnny Murray2/14/18

AHU 108 B 200 0.031 95 3.08

AHU 105 Return Air 960 x 960 0.92 7117 7.42

AHU 105 Supply Air 1120 0.99 8147 8.27

AHU 107 Supply Air 720 mm round 0.41 3520 8.65

AHU 107 Return Air 1300 x 450 0.585 5400 9.23

UNIT SERVED

OUTLET MEASURED MEASURED EBTRON

REPORT

M/s

NOTES

NO. TYPE SIZE

AHU EBTRON TEST SUMMARY

NIST- REBALANCE AIRFLOWS IN BUILDING 215 SYSTEM/UNIT Makeup Supply Air / AHU-107

OUTLET MANUFACTURER N/A TEST APPARATUS Pitot Tube/ Micromanometer Traverse

ORIGINAL

AREA BAS

REPORT AIRFLOW L/s AIRFLOW L/s VELOCITY M/s

ACID # 1 A101-1 220 0.33 199 232 0.60 0.70 Note 60

ACID # 2 B101-1 948 0.33 647 696 1.95 2.10 100 1748

ACID # 3 A102-1 1250 0.33 611 686 1.84 2.07 100 1735

ACID # 4 B102-1 2540 0.33 1516 1589 4.57 4.79 100 1744

ACID # 5 A103-1 1560 0.33 1387 1559 4.18 4.70 49.9 535

ACID # 6 B103-1 1160 0.33 939 1161 2.83 3.50 48 393

ACID # 7 A104-1 400 0.33 445 411 1.34 1.24 45 170

ACID # 8 B104-1 300 0.33 328 285 0.99 0.86 38 383

ACID # 9 A105-1 1520 0.33 1155 1260 3.48 3.80 100 1082

ACID # 10 B105-1 800 0.33 780 766 2.35 2.31 42.2 330

ACID # 11 A106-1 190 0.33 275 215 0.83 0.65 25.4 574

ACID # 12 B106-1 1800 0.33 1343 1095 4.07 3.32 100 1577

ACID # 13 A107 1100 0.33 889 1181 2.68 3.56 34.2 327

SUM TOTAL 13788 10514 11136

TRAVERSE TOTAL 9951 11457 1800

NOTES:

NIST- REBALANCE AIRFLOWS IN BUILDING 215 SYSTEM/UNIT EXHAUST RISER DISTRIBUTION / EF-101 ACID

CONTROL DAMPER PNEUMATICALLY CONTROLLED DAM TEST APPARATUS DIGITAL MANOMETER

NOTESRISER AND DAMPER

NAME

SERVICE

CHASE

SERVED

SETPOINT RISER SIZE AREA TEST

L/s

BAS

RPT L/s

TEST

M/s

EBTRON

M/s

BAS

DMPR

STATIC

PRESSURE

AT AFMS (Pa)

650 mm Note 1)

650 mm Note 1)

650 mm

650 mm

650 mm

650 mm

650 mm

650 mm

650 mm

650 mm

650 mm

650 mm

650 mm

EF 101 DAMPER EBTRON

TEST SUMMARY

1) The damper #1 is not controlling to setpoint.

TEST DATE: 2/13/2018 READINGS BY Johnny Murray

SOLVENT # 1 A101-1 90 0.33 0 112 0.29 0.34 20.4 1500

SOLVENT # 2 B101-1 797 0.33 1025 929 3.09 2.80 69.6 1570

SOLVENT # 3 A102-1 900 0.33 826 935 2.49 2.82 31.9 44

SOLVENT # 4 B102-1 930 0.33 753 895 2.27 2.70 30.8 225

SOLVENT # 5 A103-1 1290 0.33 906 1101 2.73 3.32 43.4 120

SOLVENT # 6 B103-1 1367 0.33 1171 1393 3.53 4.20 43.2 427

SOLVENT # 7 A104-1 1020 0.33 703 875 2.12 2.64 47.2 693

SOLVENT # 8 B104-1 1575 0.33 1380 1546 4.16 4.66 36.8 258

SOLVENT # 9 A105-1 880 0.33 717 912 2.16 2.75 43.5 105

SOLVENT # 10 B105-1 1550 0.33 1543 1462 4.65 4.43 40 414

SOLVENT # 11 A106-1 0 0.33 73 13 0.22 0.04 20 9

SOLVENT # 12 B106-1 150 0.33 375 182 1.13 0.55 33.3 1136

SOLVENT # 13 A107 700 0.33 693 528 2.09 1.60 91.4 1486

SUM TOTAL 11249 10165 10883

TRAVERSE TOTAL 9263

BAS

REPORT

11294

BAS FLOW

SETPT 7852

FANS' SPEED 90%/ 54 Hz

NOTES:

NIST- REBALANCE AIRFLOWS IN BUILDING 215 SYSTEM/UNIT EXH RISER DISTRIBUTION / EF-102 SOLVENT

CONTROL DAMPER PNEUMATICALLY CONTROLLED DAM TEST APPARATUS DIGITAL MANOMETER

NOTESRISER AND DAMPER

NAME

SERVICE

CHASE

SERVED

BAS

SETPOINT RISER SIZE AREA TEST

L/S

BAS

RPT L/S

TEST

M/S

EBTRON

M/S

BAS

DMPR

STATIC

PRESSURE

AT AFMS (Pa)

650 1

EF 102 DAMPER EBTRON

TEST SUMMARY

1) This damper is not controlling to setpoint.

TEST DATE: 2/12/2018 READINGS BY Johnny Murray

46 D30RW 1.4 0.18 511

47 D30RW 1.25 0.37 871

48 D30RW 1.55 0.035 225

49 D30RW 1.5 0.19 525

50 D30RW 1.52 0.04 241

51 D30RW 2.96 0.06 351

18 D30RW 1.45 85 cone 152

19 D30RW 1.45 0/ 240 cone 41

44 D30RW 1.45 0.24 365

45 D30RW 1.5 0.24 365

43 D30RW 1.59 0.14 605

42 D30RW 1.54 0.21 194

41 D30RW 1.69 0.11 319

36 D30RW 1.45 cone 65

37 D30RW 1.3 cone 104

38 D30RW 1.8 0.23 430

39 D30RW 1.18 cone 392

49 D30RW 1.5 0.13 471

35 D30RW 1.55 0.09 392

34 D30RW 1.49 0.03 169

33 D30RW 1.51 0.07 255

32 D30RW 1.48 0.12 330

31 D30RW 1.59 0.025 155

30 D30RW 1.66 0.011 118

29 D30RW 1.52 0.023 146

28 D30RW 1.58 Cone 134

40 D30RW 0 cone 197

Notes:

TEST DATE:

VAV TERMINAL TEST

SUMMARY

NIST- REBALANCE AIRFLOWS IN BUILDING 215

VAV MANUFACTURER NAILOR TEST APPARATUS Manometer + Flowhood

VAV ADDRESS MODEL Current Calib Factor

INLET SIZE

SCHED/ BAS

VAV

STPT MINIMUM

L/s

DESIGN / CURRENT DESIGN / CURRENT

STPT MAXIMUM

L/s

BAS

Flow Report Vel Pressure/ Tested L/s

FINAL

AREA SERVED

VAVs / AHU-105SYSTEM/UNIT

350 570 Note 3) 570 295 Note 1) C0-C-1

400 850 Note 3) 850 158 C0-C-1

350 250 500/375 382 C106

350 570 Note 3) 570 327 C0-C-1

175/130 170 63 C106

125/130 140/240 67 C107-1

350 250 500 / 375 390 C106

400 740 Note 3) 740 170 C0-C-1

350 250 500 / 375 319 C103

350 250 500 / 375 341 C103

400 965 / 350 970 / 450 454 C0-C-1

200 125 250 56 C0-C-2

200 /250 175 350 305 C0-C-2

175 / 120 0 / 200 115 / 300 117 C102-1

175 / 180 85 / 205 170 / 310 107 C101

200 280 Note 3) 280 182 LO-A-1

300 210 / 480 420 / 520 447 CO-C-1

200 / 350 145 / 570 Note 3) 290 / 570 330 CO-C-1

300 245 / 450 490 450 CO-B-1

300 240 / 260 480 / 490 269 CO-B-1

300 245 / 415 490 426 CO-B-1

300 245 490 344 CO-B-1

300 245 490 234 CO-B-1

300 245 / 275 490 291 CO-B-1

300 245 490 132 CO-B-1

200 / 300 125 250 125 CO-E-1

Note 2)

200 145 3277 0 CO-C-1

TOTAL 6486

1) Highlighted Values indicate BAS reported airflow values versus tested airflow values which deviate beyond the range of calibration adjustment by flow calibration factors. 2) Total traverse = 8102 L / s 3) This terminal box is set up as a CAV (Constant Air Volume)

4/10/2018 Johnny MurrayREADINGS BY

ADDRESS

68 D30RW 1.72

67 D30RW 1.4

65 D30RW 1.45

66 D30RW 1.25

63 D30RW 1.5

61 D30RW 1.95

60 D30RW 1.5

59 D30RW 1.5

58 D30RW 1.67 55 0

57 D30RW 1.68

09 D3001 1.4

10 D30RW 1.9

13 D30RW

56 D30RW 1.8

55 D30RW 1.1

54 D30RW 1.4

11 D30RW 1.15

12 D30RW 1.18

15 D30RW 1.4

14 D30RW 1.2

08 D30RW 1.35

07 D30RW 1.4

03 D30RW 1.93

02 D3001 1.35

01 D30RW 1.27

04 D30RW 1.39

05 D30RW 1.47

06 D30RW 1.44

62 D30RW 1.42

64 D30RW 0.04

TOTAL

NOTE:

TEST DATE:

A001

400 930 / 350 930 / 750 15 A001 400 930 / 350 930 / 720 130 1085

1) There is an open outlet on this system that has no VAV controlling it in Data Room C008

READINGS BY

400 500 Note 3) 500 488 A005-2

2) Highlighted Values indicate BAS reported airflow values versus tested airflow values which deviate beyond the range of calibration adjustment by flow calibration factors. 3) This terminal box is set up as a CAV (Constant Air Volume)

13571

Johnny Murray02-27 thru 29-18

A001

400 920 / 350 920 / 750 453

A001

300 440 Note 3) 440 27 E002

A001

400 760 / 350 760 / 750 394

400 920 / 350 920 / 750 120

E005-1

A008

200 355 Note 3) 355 16 A006

250 350 Note 3) 350 34 D004

400 930 / 260 930 / 300 81

125 / 120 17 / 140 35 / 200 137

300 91 C0-A1-0

125 / 120 80 80 / 100 7 C009

250 320 Note 3) 320 21 CO-H-0

300 300 Note 3)

125 / 120 60 / 70 60 / 100 14 C010

400 965 Note 3) 965 319 C011885

350 610 / 350 610 64 C012

125 / 120 80 Note 3) 80 49 C01335

250 320 Note 3) 320 0 C008 note 1)

200 280 Note 3) 280 31 D005-1 0

400 700 / 400 700 381 D004

300 460 / 350 460 153 C0002-2299

250 340 Note 3) 340 CO-C-0

175 190 16 D001

300 470 221 C001

190 Note 3)

470 / 350

300 400 Note 3) 400 393 D002

200 305 / 200 305 / 23 B006254

175 / 180 180 Note 3) 180 24 E001 Note 2)

400 760 / 450 760 / 730 93 CO-B1-0

400 930 / 350 930 / 750 236 A001

125 / 100 17 / 35 / 0 E002

SERVING

VAV TERMINAL TEST

SUMMARY

SYSTEM/UNIT VAVs / AHU-106

VAV MANUFACTURER NAILOR TEST APPARATUS Manometer + Flowhood

MODEL Current k Factor

INLET SIZE

Sched / BAS

VAV DESIGN/ CURRENT

NIST- REBALANCE AIRFLOWS IN BUILDING 215

Tested L/s

FINALDESIGN / CURRENT

MINIMUM L/s MAXIMUM L/s

BAS

Flow Report

16 D30RW 1.29

17 D30RW 1.8

21 D30RW 1.4 205

22 D30RW 1.35

23 D30RW 1.42

24 D30RW 1.38

25 D30RW 1.4

26 D30RW 1.31

27 D30RW 1.41

20 D30RW 1.4

53 D30RW 1.27

52 D30RW 1.62

NOTES:

TEST DATE:

1) Highlighted Values indicate BAS reported airflow values versus tested airflow values which deviate beyond the range of calibration adjustment by flow calibration factors.

READINGS BY Johnny Murray

TOTAL 4150 3395 2945

200 unknown / 145 290 224 271 LO-B-2

250 250 290 259 282 C0-C-2

180 100 205 205 130 CO-A-1

200 125 250 149 105 CO-E-1

300 205 410 328 306 CO-A-1

300 205 410 389 259 CO-A-1

300 212 425 404 350 CO-A-1

CO-A-1

300 205 410 362 311 CO-A-1

300 410 404 350 CO-A-1

300 205 / 260 410 48 125 Note 1)

250 175 / 195 350 350 320 CO-C-1 N

200 145 290 273 261 CO-C-1 N

VAV ADDRESS MODEL Current Calib Factor INLET SIZE MINIMUM L/s MAXIMUM L/s

VAV DESIGN / CURRENT DESIGN/ CURRENT BAS FINAL

SERVING

Flow Report Tested L/s

VAV TERMINAL TEST

SUMMARY

NIST- REBALANCE AIRFLOWS IN BUILDING 215 SYSTEM/UNIT VAVs / AHU-107

VAV MANUFACTURER NAILOR TEST APPARATUS Flowhood/RVA/manometer

LOCATION DATE

AHU 101-A

3/9/2018

TEST DATE READINGS BY4/10/2018 Johnny Murray

VFD Hertz

NIST BUILDING 215 REBALANCE

MER 215

TEST DATA

UNIT INFORMATION

Buffalo

Arr./Class

Supply Fan Discharge

Make/Type Fan Sheave

Filters - Type

Filters - No./Size See Filter Summary Sheet

See Filter Summary Sheet

Make

Type/Size

Model No.

Serial Number

APF 441

Direct Drive

Fan Sheave Diam/Bore Direct Drive

No. Belt/size

Direct DriveMotor/Fan Sheave c to c

Direct Drive

MOTOR INFORMATION

UNIT

Motor Sheave Oper. Diam

G.E.

14.92 (20)

460 /3/

27.1 / 1.15

Direct Drive

Direct Drive

Make/Frame

KW (H.P.)

Volts/Phase/Hertz

F.L. Amps/S.F.

CFLA

BHP

Make/Type Motor Sheave

Motor Sheave Diam/Bore

Direct Drive

DESIGN

-28

DESIGN ACTUALTEST DATA

-115

Unit Suction S.PACTUAL

Motor RPM

Fan Suction S.P

622 (2.5") 468

External Static S.P

Total L/s

Return Air L/s Fan/Unit Discharge S.P

Motor Amps - Average

Total Fan Static S.P

AIR APPARATUS TEST

REPORT

Outside Air L/s

Fan RPM

51.4

Motor Volts

PROJECT SYSTEM

Unit Suct Fan Suct Discharge AHU-101A (Pascals)

-28

C Filter

C

-115 Fan 353

STATIC PROFILE

NIST Building 215 Rebalance AHU-101A

4/10/2018Bldg 215 MER

1 HFD

2 HFD

3 HFD

4 HFD

5 HFD

6 HFD

7 HFD

8 HFD

9 HFD

10 HFD

11 HFD

12 HFD

13 HFD

14 HFD

15 HFD

16 HFD

17 HFD

18 HFD

19 HFD

20 HFD

21 HFD

22 HFD

23 HFD

24 HFD

25 HFD

26 HFD

27 HFD

28 HFD

29 HFD

30 HFD

REMARKS:

TEST DATE:

The AHU is operating at 51.3 hz as reported by the VFD

03/09/18 READINGS BY Johnny Murray

TOTAL 9805 9650 9650

105%

B 101 1200 x 300 185 182 0.64 182 99%

B 101 1200 x 600 370 388 0.68 388

102%

B 101 1200 x 600 370 371 0.65 371 100%

B 101 1200 x 600 370 376 0.66 376

100%

B 101 1200 x 600 370 371 0.65 371 100%

B 101 1200 x 300 185 185 0.65 185

106%

B 101 1200 x 300 185 197 0.69 197 106%

B 101 1200 x 600 370 393 0.69 393

103%

B 101 1200 x 600 370 382 0.67 382 103%

B 101 1200 x 600 370 382 0.67 382

106%

B 101 1200 x 600 370 371 0.65 371 100%

B 101 1200 x 300 185 197 0.69 197

100%

B 101 1200 x 600 370 359 0.63 359 97%

B 101 1200 x 600 370 371 0.65 371

85%

B 101 1200 x 600 370 353 0.62 353 96%

B 101 1200 x 600 370 314 0.55 314

103%

B 101 1200 x 600 370 325 0.57 325 88%

B 101 1200 x 300 185 191 0.67 191

94%

B 101 1200 x 600 370 388 0.68 388 105%

B 101 1200 x 600 370 348 0.61 348

103%

B 101 1200 x 600 370 393 0.69 393 106%

B 101 1200 x 600 370 382 0.67 382

94%

B 101 1200 x 600 370 371 0.65 371 100%

B 101 1200 x 300 185 174 0.61 174

85%

B 101 1200 x 600 370 353 0.62 353 96%

B 101 1200 x 600 370 314 0.55 314

92%

B 101 1200 x 600 370 314 0.55 314 85%

B 101 1200 x 600 370 342 0.60 342

100%

B 101 1200 x 600 370 382 0.67 382 103%

B 101 1200 x 300 185 185 0.65 185

AIR OUTLET

TEST REPORT

NIST- REBALANCE AIRFLOWS IN BUILDING 215 SYSTEM/UNIT Supply Air / AHU-101 A

OUTLET MANUFACTURER Camfil-Farr TEST APPARATUS Velgrid / Flowhood/ Micromanometer

PERCENT OF

DESIGN

NO. TYPE SIZE AIRFLOW L/s AIRFLOW L/s M/s AIRFLOW L/s

AREA SERVED

OUTLET DESIGN PRELIMINARY VELOCITY FINAL

PROJECT AHU 101-B

See Filter Summary Sheet

See Filter Summary Sheet

Bldg. 215 PENTHOUSE MER

VFD Hertz

Direct Drive

MOTOR INFORMATION

-17

DESIGN ACTUAL

Direct DriveMotor/Fan Sheave c to c

Motor Amps - Average

Total Fan Static S.P

Out. Air Damp. Position

TEST DATE READINGS BY4/10/2018 Johnny Murray

NIST BUILDING 215 REBALANCE

TEST DATA

UNIT INFORMATION

Buffalo

Arr./Class

Supply Fan Discharge

Make/Type Fan Sheave

Filters - Type

Filters - No./Size

Make

Type/Size

Model No.

Serial Number

APF 441

Direct Drive

Fan Sheave Diam/Bore Direct Drive

No. Belt/size

UNIT

Motor Sheave Oper. Diam

G.E.

14.92 (20)

460 /3/

27.1 / 1.15

3/9/2018

Direct Drive

Direct Drive

Make/Frame

KW (H.P.)

Volts/Phase/Hertz

F.L. Amps/S.F.

CFLA

BHP

Make/Type Motor Sheave

Motor Sheave Diam/Bore

Direct Drive

TEST DATA

-116

Unit Suction S.PACTUALDESIGN

10730

Motor RPM

Fan Suction S.P

External Static S.P

Total L/S (CFM)

Return Air L/S Fan/Unit Discharge S.P

AIR APPARATUS TEST

REPORT

Outside Air L/S

Fan RPM

51.4

Unit Suct Fan Suct Discharge AHU-101B (Pascals)

STATIC PROFILE

NIST Building 215 Rebalance AHU-101B Bldg 215 MER 4/10/2018

-17

C Filter

C

-116 Fan 313

2 HFD

3 HFD

4 HFD

5 HFD

6 HFD

7 HFD

8 HFD

9 HFD

10 HFD

11 HFD

12 HFD

13 HFD

14 HFD

15 HFD

16 HFD

17 HFD

18 HFD

19 HFD

20 HFD

21 HFD

22 HFD

23 HFD

24 HFD

25 HFD

2…