S02 - Exhibit 3. VMU CageWash Baseline Report.pdf

DATE:

PROJECT:

ADDRESS:

Chicago, IL. 60612

ARCHITECT:

ENGINEER:

HVAC

CONTRACTOR

NEBB

TAB FIRM:

ADDRESS:

NA

NA

TL SERVICES, INC.

1101 1st SW

Ruskin, FL 33570

9/4/2024

CERTIFIED TEST, ADJUST, AND BALANCE REPORT

STAMP

Jesse Brown Animal Research Labs, Veterinary Medical Unit Cage Wash System

7th Floor Building 11, Taylor

820 S Damen Ave.

NA

TAB 1-91

NATIONAL ENVIRONMENTAL BALANCING BUREAU

Corporate Office

1101 1st SW ∙ Ruskin, FL 33570 ∙ (813)641-2730

September 4, 2024

TAB REPORT SUMMARY

7th Floor Animal Labs, Taylor (Building 11)

The data was taken to show how the system is operating at this point. Of course, the system load is not installed (the Bottle Washer and Cage Wash), so we should see an unencumbered system. At this point, the Bottle Washer connection is essentially a 3” tube (or hose). It is pulling 57 CFM. The Cage Wash flex is a 5” hose. The Cage Wash flex draws 780 CFM. The fan system is pulling 3.31 inwg at the fan. The total CFM inside the Cage Wash room is 837 CFM. We measured the air flow at the fan and determined it to be 869.2 CFM. The conclusion from this information is that the ductwork between the Cage Wash room and the exhaust fan on the roof has no major leaks or restriction losses. Total loss is 32 CFM.

The Fan running at 3.31 inwg, is concerning. Our opinion is that the 3” and 5” hoses are contributing to the high static value. To make the system run, it was sped up to its limit. The motor amp draw averages around 2 amps for the three phases. The Full Load Amp motor design is 2.1 amps. There is no more room on the motor.

In our opinion, the solution is to increase the sizes of the intake lines at the Bottle and Cage Wash machines. The square connection on the Bottle Wash machine is equivalent to a 5” line. The suggestion is to remake the connection at 5” instead of 3”.

This should reduce the static requirement on the fan and should bring down the overall amp draw of the motor. We also suggest that the Cage Wash intake be increased to at least 6” if not an 8” line. Upon these changes it should allow the fan speed to be reduced and still attain the current air flow draw. If the machines require more air than the old machines, this may also work in the system’s favor.

Jesse Brown VA Hospital TL Services, Inc.

P a g e | 2

A suggestion made on the walk through is that the current duct connection box, which is connected to the duct via a flange, be removed and a new connection box made and bring the line connections below the hard ceiling. This will make it much easier to work on in the future. We concur with this idea. There will still need to be a short piece of flex duct to make the final connection. This is to reduce vibration and noise.

John Sides, Jr. P.E. CEM QCP NEBB_CP TL Services, Inc

AIR APPARATUS

TEST REPORT

PROJECT Jesse Brown Exhaust Baseline TAB SERVICE VMU

LOCATION Taylor Building Roof SYSTEM/UNIT

UNIT DATA MOTOR DATA

Make/Model No. Make/Frame

Serial Number H.P./RPM (W)

Discharge Volts/Phase/Hertz

F.L. Amps/S.F.

Sheave Diam/Bore

Sheave Diam/Bore Sheave L Distance

No. Belts/make/size Sheave Oper. Diam.

TEST DATA DESIGN ACTUAL TEST DATA DESIGN ACTUAL

Fan RPM NA 1802 Suction S.P. 3.31

Motor Volts 460 467/466/466 Bottle Wash CFM 57.00

Motor Amps 2 1.93/2.02/2.00 Cart Wash CFM 780.00 Motor RPM 1725 1770 Total Space Exhaust CFM 837.00

Duct Traverse At Fan 869.20

REMARKS:

TEST DATE 9/4/2024 Sides/Bradley

5"

5" / 1"

11"

1 / 1760

460 / 3 / 60

2.1 / 1.15

Note 1

Note 1

Vertical

Cart Wash Exhaust Fan

STAMP

3" / 3/4"

1/Note 2/Note 2

TECHINCAN:

Note 1: There were no visible markings on the fan unit.

Note 2: Unable to stop unit to get belt data. No visible markings on the belt.

Fan sheave is sized to make the fan run faster. System currently is almost at full load amps. There isn't enough room to speed up the fan any more.

Marathon / 1451

RECTANGULAR DUCT

TRAVERSE REPORT

PROJECT SYSTEM/UNIT

LOCATION/ZONE SERVICE

Room

S.P. AIR TEMP F ( C ) SCFM (sl/s) SCFM (sl/s) SIZE 16''X16'' AREA SQFT 1.78 FPM (ms) CFM FPM (ms) CFM

Distance Position 1 2 3 4 5 6 7 8 9 10 11 12 13 From Bottom

2 1 972 621 692 386

6 2 460 570 519 319

10 3 430 514 360 310

14 4 416 547 399 298

2 6 10 14

2278 2252 1970 1313 0 0 0 0 0 0 0 0 0

REMARKS: STAMP

1) Total CFM = Avg Velocity

TECHNICIAN:

Jesse Brown Exhaust Baseline TAB Cart Wash Exhaust Fan

Taylor Building Roof VMU

ACTUALDESIGN

7,813.00

Distance From # of Readings

Sum of All Readings

Duct Edge

TEST DATE: 9/4/2024 SIDES/BRADLEY

CFM

SUB-TOTALS

869 488.31

VMU_CageWash_ExhaustFan_T&B_TRAVERSE

CERTIFICATION

PROJECT:

ADDRESS:

THE DATA PRESENTED IN THIS REPORT IS AN EXACT RECORD OF SYSTEM

PERFORMANCE AND WAS OBTAINED IN ACCORDANCE WITH NEBB STANDARD

PROCEDURES. ANY VARIANCES FROM DESIGN QUANTITIES WHICH EXCEED NEBB

TOLLERENCES ARE NOTED THROUGHOUT THIS REPORT.

THE AIR DISTRIBUTION SYSTEMS HAVE BEEN TESTED & BALANCED AND FINAL

ADJUSTMENTS HAVE BEEN MADE IN ACCORDANCE WITH NEBB "PROCEDURAL

STANDARDS FOR TESTING-ADJUSTING-BALANCE OF ENVIRONMENTAL SYSTEMS"

AND THE PROJECT SPECIFICATIONS.

NEBB CONTRACTOR:

REG. NO. 2932 CERTIFIED BY: DATE:

THE HYDRONIC DISTRIBUTION SYSTEMS HAVE BEEN TESTED & BALANCED AND FINAL

ADJUSTMENTS HAVE BEEN MADE IN ACCORDANCE WITH NEBB "PROCEDURAL

STANDARDS FOR TESTING-ADJUSTING-BALANCE OF ENVIRONMENTAL SYSTEMS"

AND THE PROJECT SPECIFICATIONS.

NEBB CONTRACTOR:

REG. NO. 2932 CERTIFIED BY: DATE:

SUBMITTED AND CERTIFIED BY:

NEBB CONTRACTOR:

TAB SUPERVISOR:

REG. NO. 2932 DATE:

TL SERVICES, INC.

JOHN SIDES JR. 9/4/2024

Jesse Brown Exhaust Baseline TAB for VMU Cage Wash syste

Chicago, IL. 60612

820 S Damen Ave.

STAMP

TL SERVICES, INC.

9/4/2024

JOHN SIDES JR.

TL SERVICES, INC.

JOHN SIDES JR. 9/4/2024

TAB 2-83

National Environmental Balancing Bureau

Report Not Valid Unless Stamped with Nebb Certification Seal

Table of Abbreviations Date: 9/4/2024

PROJECT:

L/S Liters Per Second kW Kilowatt GPM Gallons Per Minute W Watt Min Minimum MBH Thousand British Thermal Min Alt for Minute Units Per Hour Max Maximum BTU British Thermal Units CFM Cubic Feet Per Minute CAL Calibration PSI Pounds Per Square Inch PSF Pounds Per Square Foot Pa Pascales In Inch Ft Foot M Meter VFD/VSD Variable Frequency (Speed) Drive No. Number N/A / NA Not Applicible RPM Revolutions Per Minute S.P. Static Pressure H.P. Horse Power A Amps V Volts Damp / Dmp Damper OSA Outside Air RA Return Air RTN Return SA Supply Air MA Mixed Air VAV Variable Air Volume CORR Correction (Factor) Zn Zone S.F. Service Factor Ent Entering Lvg Leaving Temp Temperature Press Pressure Dischg Discharge Cond Condenser ChW Chilled Water Htr Heater L.P. Low Pressure H.P. High Pressure

Jesse Brown Exhaust Baseline TAB

INSTRUMENT

CALIBRATION

PROJECT: REPORT

INSTRUMENT/SERIAL NO. APPLICATION DATES OF USE DATE CALIBRAITED

REMARKS:

NEBB CONTRACTOR:

TAB SUPERVISOR:

REG. NO. 2932 DATE STAMP

8/27/2024 - 9/4/2024

8/27/2024 - 9/4/2024

8/27/2024 - 9/4/2024

Air Press / Air Velocity./ Temp. /

Humidity

Volts/Amps

Jesse Browm Quarterly TAB

JOHN SIDES JR.

TL SERVICES, INC.

9/4/2024

Nova Strobe

Velocicalc 9565P2130007

Fluke Clamp-on Multimeter

Rotation Speed

TAB 2-83

National Environmental Balancing Bureau

Report Not Valid Unless Stamped with

Nebb Certification Seal

9d-Fluke 324 ClampMeter Cal sheet