Attachment 1 - Basis for Design.pdf

Prepared By:

CFR Engineering Consultants, Inc.

20251 Century Blvd, Suite 120

Germantown, MD 20874

(877) 871-4229

NIST Building 101 – REPLACE HVAC EQUIPMENT MEZZANINE A

National Institutes of Standards and Technology

Basis of Design

100% Submission

CFR Project Number: 20078

June 10th, 2022

National Institute of Standards and Technology – Building 101 Replace HVAC Equipment Mezzanine A 2

CFR Engineering June 10th, 2022

BASIS OF DESIGN REPORT

Table of Contents

Executive Summary…………………………………………………………………………………………………………………….3

Mechanical Basis of Design…………………………..…………………………………………………………………………….4

Applicable Codes, Guidelines and Standards………………………………………………………………….4

Scope of Work……………………………………………………………………………………………………………….4

Hvac Load Calculation Methodology………………………………………………………………………………5

System Description…………………………………………………………………………………………………………6

Electrical Systems Basis of Design……………………………………………………………………………………………….7

Applicable Codes, Guidelines and Standards………………………………………………………………….7

Scope of Work………………………………….…………………………………………………………………………….7

System Description…………………………………………………………………………………………………………8

Appendices

A.1 Government Scope of Work

A.2 Equipment

National Institute of Standards and Technology – Building 101 Replace HVAC Equipment Mezzanine A 3

Executive Summary

This Basis of Design (BOD) narrative and associated contract documents describe and define the mechanical, and electrical engineering (M-E) systems proposed for the project. The purpose of these documents is to clarify the design basis and intent of the project at this level of completion. The general scope of work is to provide mechanical and electrical engineering design services for the renovation of the mechanical ductwork, piping, equipment and controls located inside the mezzanine A mechanical room. The air conditioning equipment and exhaust fans will be replaced in-kind. Engineering design will be provided for the new equipment and associated piping, ductwork, electrical, fire alarm and controls work.

Each BOD will further describe the design basis as follows:

• Codes and Applicable Guidelines

• Calculation Methodology

• System Descriptions

National Institute of Standards and Technology – Building 101 Replace HVAC Equipment Mezzanine A 4

Mechanical Basis of Design

Applicable Codes, Guidelines and Standards

• International Building Code - 2021

• International Mechanical Code - 2021

• NFPA 70 (2020) - National Electric Code

• NFPA 90A (2018) - Standard for the Installation of Air conditioning and Ventilating Systems.

• NFPA 101 (2018) - Life Safety Code

• ASHRAE Standard 62 - Ventilation for Acceptable Indoor Air Quality

Scope of Work

Six (6) air conditioning units – located in the A Wing Mezzanine Mechanical Room of building 101 – serve the heating, cooling and ventilation requirements for the building and will be replaced in-kind with new units. There are also nine (9) return/exhaust fans located in this mechanical room that will be replaced in-kind.

Louvers cover the entire west wall of the mechanical room and will all be replaced in-kind as well.

• Remove existing air conditioning units and exhaust fans

• Remove chilled water and steam piping back to shut-off valves

• Provide new air conditioning units and exhaust fans

• Provide new humidifier and clean steam generator for ACU-A-3

• Provide new chilled water and steam piping, specialties and valves.

• Provide new blank off panels and insect screens on existing intake louvers.

• Provide new VFDs

• Provide new controls upgrades

National Institute of Standards and Technology – Building 101 Replace HVAC Equipment Mezzanine A 5

Hvac Load Calculation Methodology

Outdoor Design Conditions

Summer:

• Dry-Bulb Temperature = refer to psychrometric analysis (Appendix)

• Wet-Bulb Temperature = refer to psychrometric analysis (Appendix)

Winter:

• Dry-Bulb Temperature = refer to psychrometric analysis (Appendix)

• Wet-Bulb Temperature = refer to psychrometric analysis (Appendix)

Ventilation Rates: The minimum ventilation (outdoor air) rates based on ASHRAE 62.1-2019

Refer to mechanical equipment schedules for more information regarding the mechanical ventilation information.

National Institute of Standards and Technology – Building 101 Replace HVAC Equipment Mezzanine A 6

System Description

Supply Air Systems:

• The six (6) air conditioning units being replaced are all constant volume single zone mixed-air units. They are capable of providing 100% outside air as well. Below is a list of each ACU and the area of the building they serve.

o ACU-A-1 – First Floor and Basement o ACU-A-2 – First Floor Lobby and corridor o ACU-A-3 – Floors 1 through 11 perimeter induction units o ACU-A-4 – Floors 1 through 11 perimeter induction units o ACU-A-5 – Floors 1 through 11 perimeter induction units o ACU-A-6 – Floors 1 through 11 perimeter induction units o Refer to mechanical ventilation schedules, located on mechanical drawings, for additional information on rooms served by each unit.

• The ACUs are provided with the followings o An intake louver, capable of 100% outside airflow, with minimum OA damper and maximum OA damper.

o Mixing box for return and outside air with motorized dampers o Merv 8 prefilter and Merv 13 primary filter o Steam heating coils (preheat position), provided in multiple banks o Chilled water-cooling coils, provided in multiple banks o Steam humidifier for ACU-3, steam dispersion short absorption tubes o Refer to Appendix for psychrometric analysis, which uses outside air temperatures based on the original ACU designs.

o One (1) centrifugal plenum supply fan per ACU o One (1) centrifugal SWSI housed return/exhaust fan, external to the ACU o One (1) Variable Frequency Drive per ACU o Ventilation calculations and airflows are listed on the mechanical equipment schedules.

o Since there is no scope of work for the downstream hvac system and terminal equipment, the external static pressure (ESP) is provided to match the existing

ACUs’ pressures. The total static pressure for each ACU will be provided to accommodate both the ESP and internal static pressures (ISP) for each ACU.

Exhaust Air System:

• The nine (9) return/exhaust fans being replaced are also constant volume units. Below is a list of each fan and what they serve.

o E-A-1 – serves ACU-A-1 o E-A-2 – serves ACU-A-2 o E-A-3 – serves ACU-A-3 o E-A-4 – serves ACU-A-4 o E-A-5 – serves ACU-A-5 o E-A-6 – serves ACU-A-6 o E-A-7 – serves A wing basement and first floor toilets o E-A-8 – serves A wing mechanical equipment room A150

National Institute of Standards and Technology – Building 101 Replace HVAC Equipment Mezzanine A 7 o E-A-13 – serves A wing sub-basement

• Each return fan is a centrifugal housed single width single inlet, belt driven (except for E-A-7)

• Each fan is provided with an inertia pad and vibration isolators mounted on an existing to remain concrete housekeeping pad.

• Each fan is provided with a Variable Frequency Drive.

National Institute of Standards and Technology – Building 101 Replace HVAC Equipment Mezzanine A 8

Electrical Systems Basis of Design

Applicable Codes, Guidelines, and Standards

• NIST NIST Design Guidelines

• IEEE Institute of Electrical and Electronics Engineers

• NEMA National Electrical Manufacturers Association

• UL Underwriters Laboratories

• NFPA 72 (2022), 101 (2021), 110 (2022)

• NEC Latest Adopted National Electrical Code (NFPA 70 - 2020)

• ADA Americans with Disabilities Act Accessibility Guidelines

ELECTRICAL SERVICE LOAD CALCULATIONS

Load Density Chart

Design Voltages Chart

Standard Voltages

Voltage Phase Wire Description

480/277V 3 4

Preferred voltage for tools, lighting, and HVAC equipment.

208/120V 3 4

Service voltage and receptacle utilization voltage

Estimated Electrical Utility Loads

NAME

INDV.

LOAD (A)

QTY LOAD (A) VA

ACU-1 28 1 28 23268

ACU-2 38 1 38 31578

ACU-3 66 1 66 54846

ACU-4 54 1 54 44874

ACU-5 79 1 79 65649

ACU-6 44 1 44 36564

HVAC TOTAL 309 6 309 256779 VA

256.779KVA

National Institute of Standards and Technology – Building 101 Replace HVAC Equipment Mezzanine A 9

System Descriptions

Electric Power Distribution and Area Service

Power Systems

• Power to all the ACU fans, supply and exhaust, is provided from existing motor control centers MCC-A1 and MCC-A2, located in the Mezzanine “A” mechanical room. Both MCC-

A1 and MCC-A2 are rated 600A, 480V, 3-Phase (3Φ), 3-wire and are fed from Switchgear

101-A1. The partial One Line diagram is shown on drawing E-600.

o Some of the loads, mostly the exhaust fans, for this project, will remain at the current level. For these units, the extent of the work is to replace the motor controllers and disconnects with a single circuit breaker to feed the new VFDs.

o Five of the six supply fans for these units will increase in size. For these units, the extent of the work is to replace the motor controllers and disconnects with a single circuit breaker to feed the new VFDs. The multi-branch circuits will also be replaced to accommodate the increases in motors’ size. The details are shown on the project documents.

• The new ACUs and fans will be controlled by VFDs.

• Adjustments to the motor control centers MCC-A1 and MCC-A2, will be made to accommodate the new VFDs. The existing motor starters and disconnect units will be replaced with new modules and circuit breakers (CBs), which will feed the new VFDs. There is an increase in connected loads for each motor control center; roughly, 20HP for MCC-A1 and 10HP for MCC-A2.

• Load calculations are provided on drawing E-601, to evaluate the spare capacity in each motor control center; the existing load data is the basis for the calculations.

• Details of modifications and connections to VFDs are described on the project documents.

Lighting Systems

System Description

• Lighting in the Mezzanine A mechanical room is existing, no modifications are expected.

Fire Alarm System

System Description

• The existing fire stats are being replaced with duct smoke detectors.

• Duct smoke detectors will be provided in the return sections of ACUs larger than 2,000cfm.

• The duct smoke detectors will send a supervisory signal to the fire alarm control panel.

• The DDC will shut down the alarmed unit and the fire department will be notified.

• Details of modifications and connections to the fire alarm system are described on the project documents.

30 40 50 60 70 80 90 100 110 115

DRY BULB TEMPERATURE - °F

10 15 20 25

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Bt u p er lb . o f d ry air an d a ss oc iat ed m ois tur e

ENTHALPY - Btu per lb. of dry air and associated moisture

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. o f d ry air an d a ss oc iat ed m ois tur e

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0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

0.50

0.55

0.60

0.65

0.70

0.75

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

1.20

1.25

1.30

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°F

Chart by: HANDS DOWN SOFTWARE, www.handsdownsoftware.com

STANDARD AIR

1.00 0.95 0.90 0.85

0.80

0.75

0.70

0.65

0.60

0.55

0.50

0.45

0.40

0.35

0.300.250.20 SENSIBLE HEAT RATIO = Qs / Qt

SE

N

SI

BL

E H

EA

T

R

AT

IO

Q s

/ Q t

10% RELATIVE HUMIDITY

20%

30%

40%

50%

60%

70% 80%

WET BULB TEMPERATURE - °F

12.6

12.8

13.0

13.2

13.4

13.6

13.8

14.0

14.2

14.4

14.6 14.8

15.0

HC

BAROMETRIC PRESSURE: 29.921 in. HG

Chart by: HANDS DOWN SOFTWARE, www.handsdownsoftware.com kcapodice Text Box

ACU 1 THRU 6 HEATING COIL

STATE POINT & PROCESS REPORT English

Report Date: Thursday, May 13, 2021 Project Information:

Altitude: 0 (Feet) Barometric Pressure: 29.921 (in.Hg) Atmospheric Pressure: 14.696 (psia)

1. OA

STATE POINT DATA

Air Flow (Standard)

(cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

15,795 0.000 -3.354 0.0 0.0 11.584 0.000 -148.0000 0.0863 0.0000 0.000

2. HC

STATE POINT DATA

Air Flow

(Standard) (cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

15,795 40.000 25.669 0.0 0.0 12.592 9.600 -148.0000 0.0794 0.0000 0.000

Process: Sensible Heating

Start Point Name Total

Heating (tons)

Total Energy (Btu/hr)

Sensible Energy (Btu/hr)

Latent Energy (Btu/hr)

Moisture Difference

(lb/hr)

Sensible Heat Ratio

Enthalpy/ Humidity Ratio (Btu/lb / lb/lb)

OA 65.4 785,374 785,374 0 0.0 1.000 N/A

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ACU-A-1

Project Information:

Altitude: 0 (Feet) Barometric Pressure: 29.921 (in.Hg) Atmospheric Pressure: 14.696 (psia)

1. OA

STATE POINT DATA

Air Flow (Standard)

(cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

19,490 0.000 -3.354 0.0 0.0 11.584 0.000 -148.0000 0.0863 0.0000 0.000

2. HC

STATE POINT DATA

Air Flow

(Standard) (cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

19,490 40.000 25.669 0.0 0.0 12.592 9.600 -148.0000 0.0794 0.0000 0.000

Process: Sensible Heating

Start Point Name Total

Heating (tons)

Total Energy (Btu/hr)

Sensible Energy (Btu/hr)

Latent Energy (Btu/hr)

Moisture Difference

(lb/hr)

Sensible Heat Ratio

Enthalpy/ Humidity Ratio (Btu/lb / lb/lb)

OA 80.8 969,100 969,100 0 0.0 1.000 N/A

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ACU-A-2

Project Information:

Altitude: 0 (Feet) Barometric Pressure: 29.921 (in.Hg) Atmospheric Pressure: 14.696 (psia)

1. OA

STATE POINT DATA

Air Flow (Standard)

(cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

28,030 0.000 -3.354 0.0 0.0 11.584 0.000 -148.0000 0.0863 0.0000 0.000

2. HC

STATE POINT DATA

Air Flow

(Standard) (cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

28,030 40.000 25.669 0.0 0.0 12.592 9.600 -148.0000 0.0794 0.0000 0.000

Process: Sensible Heating

Start Point Name Total

Heating (tons)

Total Energy (Btu/hr)

Sensible Energy (Btu/hr)

Latent Energy (Btu/hr)

Moisture Difference

(lb/hr)

Sensible Heat Ratio

Enthalpy/ Humidity Ratio (Btu/lb / lb/lb)

OA 116.1 1,393,734 1,393,734 0 0.0 1.000 N/A

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ACU-A-3

Project Information:

Altitude: 0 (Feet) Barometric Pressure: 29.921 (in.Hg) Atmospheric Pressure: 14.696 (psia)

1. OA

STATE POINT DATA

Air Flow (Standard)

(cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

25,600 0.000 -3.354 0.0 0.0 11.584 0.000 -148.0000 0.0863 0.0000 0.000

2. HC

STATE POINT DATA

Air Flow

(Standard) (cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

25,600 40.000 25.669 0.0 0.0 12.592 9.600 -148.0000 0.0794 0.0000 0.000

Process: Sensible Heating

Start Point Name Total

Heating (tons)

Total Energy (Btu/hr)

Sensible Energy (Btu/hr)

Latent Energy (Btu/hr)

Moisture Difference

(lb/hr)

Sensible Heat Ratio

Enthalpy/ Humidity Ratio (Btu/lb / lb/lb)

OA 106.1 1,272,908 1,272,908 0 0.0 1.000 N/A

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ACU-A-4

Project Information:

Altitude: 0 (Feet) Barometric Pressure: 29.921 (in.Hg) Atmospheric Pressure: 14.696 (psia)

1. OA

STATE POINT DATA

Air Flow (Standard)

(cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

29,880 0.000 -3.354 0.0 0.0 11.584 0.000 -148.0000 0.0863 0.0000 0.000

2. HC

STATE POINT DATA

Air Flow

(Standard) (cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

29,880 40.000 25.669 0.0 0.0 12.592 9.600 -148.0000 0.0794 0.0000 0.000

Process: Sensible Heating

Start Point Name Total

Heating (tons)

Total Energy (Btu/hr)

Sensible Energy (Btu/hr)

Latent Energy (Btu/hr)

Moisture Difference

(lb/hr)

Sensible Heat Ratio

Enthalpy/ Humidity Ratio (Btu/lb / lb/lb)

OA 123.8 1,485,722 1,485,722 0 0.0 1.000 N/A

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ACU-A-5

Project Information:

Altitude: 0 (Feet) Barometric Pressure: 29.921 (in.Hg) Atmospheric Pressure: 14.696 (psia)

1. OA

STATE POINT DATA

Air Flow (Standard)

(cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

22,770 0.000 -3.354 0.0 0.0 11.584 0.000 -148.0000 0.0863 0.0000 0.000

2. HC

STATE POINT DATA

Air Flow

(Standard) (cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

22,770 40.000 25.669 0.0 0.0 12.592 9.600 -148.0000 0.0794 0.0000 0.000

Process: Sensible Heating

Start Point Name Total

Heating (tons)

Total Energy (Btu/hr)

Sensible Energy (Btu/hr)

Latent Energy (Btu/hr)

Moisture Difference

(lb/hr)

Sensible Heat Ratio

Enthalpy/ Humidity Ratio (Btu/lb / lb/lb)

OA 94.3 1,132,192 1,132,192 0 0.0 1.000 N/A

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ACU-A-6

10 15 20 25

EN

TH

AL

PY

Bt u p er lb . o f d ry air an d a ss oc iat ed m ois tur e

ENTHALPY - Btu per lb. of dry air and associated moisture

EN

TH

AL

PY

- B tu pe r lb

. o f d ry air an d a ss oc iat ed m ois tur e

WET

BU

LB

TE

MPE

RA

TU

RE

F

HU

MI

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R

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(o r S pe cif ic

Hu mi dit y)

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0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

0.50

0.55

0.60

0.65

0.70

0.75

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

1.20

1.25

1.30

VA

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°F

Chart by: HANDS DOWN SOFTWARE, www.handsdownsoftware.com

STANDARD AIR

1.00 0.95 0.90 0.85

0.80

0.75

0.70

0.65

0.60

0.55

0.50

0.45

0.40

0.35

0.300.250.20 SENSIBLE HEAT RATIO = Qs / Qt

SE

N

SI

BL

E H

EA

T

R

AT

IO

Q s

/ Q t

10% RELATIVE HUMIDITY

20%

30%

40%

50%

60%

70% 80%

WET BULB TEMPERATURE - °F

12.6

12.8

13.0

13.2

13.4

13.6

13.8

14.0

14.2

14.4

14.6 14.8

15.0

MA

CC

BAROMETRIC PRESSURE: 29.921 in. HG

Chart by: HANDS DOWN SOFTWARE, www.handsdownsoftware.com kcapodice

ACU 1 THRU 6 COOLING COIL

Report Date: Friday, May 21, 2021 Project Information:

Altitude: 0 (Feet) Barometric Pressure: 29.921 (in.Hg) Atmospheric Pressure: 14.696 (psia)

1. MA

STATE POINT DATA

Air Flow (Standard)

(cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

15,795 83.000 67.800 46.0 77.9 13.920 32.131 60.0903 0.0726 0.5236 5.593

2. CC

STATE POINT DATA

Air Flow

(Standard) (cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

15,795 50.000 49.000 93.4 50.0 12.992 19.743 48.1713 0.0775 0.3387 3.852

Process: Cooling Coil

Start Point Name

Total Cooling (tons)

Total Energy (Btu/hr)

Sensible Energy (Btu/hr)

Latent Energy (Btu/hr)

Dehumidification

(lb/hr)

Sensible Heat Ratio

Enthalpy/ Humidity Ratio (Btu/lb / lb/lb)

OA -70.3 -843,372 -546,342 -297,030 -270.6 0.648 3,117

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ACU-A-1

Project Information:

Altitude: 0 (Feet) Barometric Pressure: 29.921 (in.Hg) Atmospheric Pressure: 14.696 (psia)

1. MA

STATE POINT DATA

Air Flow (Standard)

(cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

19,490 82.200 65.400 40.7 67.0 13.865 30.234 55.9838 0.0728 0.4518 4.833

2. CC

STATE POINT DATA

Air Flow

(Standard) (cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

19,490 50.000 49.000 93.4 50.0 12.992 19.743 48.1713 0.0775 0.3387 3.852

(tons)

Total Energy (Btu/hr)

Sensible Energy (Btu/hr)

Latent Energy (Btu/hr)

Dehumidification

(lb/hr)

Sensible Heat Ratio

Enthalpy/ Humidity Ratio (Btu/lb / lb/lb)

EAT -73.7 -884,802 -660,392 -224,410 -204.5 0.746 4,327

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ACU-A-2

Project Information:

Altitude: 0 (Feet) Barometric Pressure: 29.921 (in.Hg) Atmospheric Pressure: 14.696 (psia)

1. MA

STATE POINT DATA

Air Flow (Standard)

(cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

28,030 82.200 67.000 45.5 75.0 13.891 31.491 59.0716 0.0728 0.5049 5.401

2. CC

STATE POINT DATA

Air Flow

(Standard) (cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

28,030 50.000 49.000 93.4 50.0 12.992 19.743 48.1713 0.0775 0.3387 3.852

(tons)

Total Energy (Btu/hr)

Sensible Energy (Btu/hr)

Latent Energy (Btu/hr)

Dehumidification

(lb/hr)

Sensible Heat Ratio

Enthalpy/ Humidity Ratio (Btu/lb / lb/lb)

OA -118.5 -1,422,415 -948,042 -474,373 -432.2 0.667 3,291

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Project Information:

Altitude: 0 (Feet) Barometric Pressure: 29.921 (in.Hg) Atmospheric Pressure: 14.696 (psia)

1. MA

STATE POINT DATA

Air Flow (Standard)

(cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

25,600 82.200 67.000 45.5 75.0 13.891 31.491 59.0716 0.0728 0.5049 5.401

2. CC

STATE POINT DATA

Air Flow

(Standard) (cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

25,600 50.000 49.000 93.4 50.0 12.992 19.743 48.1713 0.0775 0.3387 3.852

(tons)

Total Energy (Btu/hr)

Sensible Energy (Btu/hr)

Latent Energy (Btu/hr)

Dehumidification

(lb/hr)

Sensible Heat Ratio

Enthalpy/ Humidity Ratio (Btu/lb / lb/lb)

OA -108.3 -1,299,102 -865,853 -433,249 -394.8 0.667 3,291

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ACU-A-4

Project Information:

Altitude: 0 (Feet) Barometric Pressure: 29.921 (in.Hg) Atmospheric Pressure: 14.696 (psia)

1. MA

STATE POINT DATA

Air Flow (Standard)

(cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

29,880 82.200 67.000 45.5 75.0 13.891 31.491 59.0716 0.0728 0.5049 5.401

2. CC

STATE POINT DATA

Air Flow

(Standard) (cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

29,880 50.000 49.000 93.4 50.0 12.992 19.743 48.1713 0.0775 0.3387 3.852

(tons)

Total Energy (Btu/hr)

Sensible Energy (Btu/hr)

Latent Energy (Btu/hr)

Dehumidification

(lb/hr)

Sensible Heat Ratio

Enthalpy/ Humidity Ratio (Btu/lb / lb/lb)

OA -126.4 -1,516,295 -1,010,613 -505,682 -460.8 0.667 3,291

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ACU-A-5

Project Information:

Altitude: 0 (Feet) Barometric Pressure: 29.921 (in.Hg) Atmospheric Pressure: 14.696 (psia)

1. MA

STATE POINT DATA

Air Flow (Standard)

(cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

22,770 82.200 67.000 45.5 75.0 13.891 31.491 59.0716 0.0728 0.5049 5.401

2. CC

STATE POINT DATA

Air Flow

(Standard) (cfm)

Dry Bulb (°F)

Wet Bulb (°F)

Relative Humidity

Humidity Ratio (gr/lb)

Specific Volume (cu.ft./lb)

Enthalpy

(Btu/lb)

Dew Point (°F)

Density

(lb/cu.ft.)

Vapor Pressure (in.Hg)

Absolute Humidity (gr/cu.ft.)

22,770 50.000 49.000 93.4 50.0 12.992 19.743 48.1713 0.0775 0.3387 3.852

(tons)

Total Energy (Btu/hr)

Sensible Energy (Btu/hr)

Latent Energy (Btu/hr)

Dehumidification

(lb/hr)

Sensible Heat Ratio

Enthalpy/ Humidity Ratio (Btu/lb / lb/lb)

OA -96.3 -1,155,490 -770,136 -385,354 -351.1 0.667 3,291

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ACU-A-6

10 15 20 25

E N

T H

A

LP

Y

B tu p er lb . o f d ry a ir an d as so ci at ed m oi st ur e

ENTHALPY - Btu per lb. of dry air and associated moisture

E N

TH

A

LP

Y

B tu p er lb

. o f d ry a ir an d as so ci at ed m oi st ur e W

E T

B U

LB

T

EM

P

ER

AT

U R

E

F

H U

M

ID

IT

Y

R A

T

IO

or

S pe ci fic

H um id ity

G

R A

IN

S

O F

M O

IS

T

U R

E P

E R

P O

U N

D O

F D

R Y

A

IR

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

0.50

0.55

0.60

0.65

0.70

0.75

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

1.20

1.25

1.30

V A

P O

R P

R E

S S

U R

E

IN

C

H E

S O

F M

E R

C U

R Y

D E

W P

O

IN

T T

E M

P E

R A

T U

R E

F

Chart by: HANDS DOWN SOFTWARE, www.handsdownsoftware.com

STANDARD AIR

1.00

0.95

0.90

0.85

0.80

0.75

0.70

0.65

0.60

0.55

0.50

0.45

0.40

0.35

0.300.250.20

SENSIBLE HEAT RATIO = Qs / Qt

S E

N S

IB

L

E H

E A

T R

A T

IO

Q s

Q t

10% RELATIVE HUMIDITY

20%

30%

40%

50%

WET BULB TEMPERATURE - °F

12.6

12.8

13.0

13.2

13.4

13.6

13.8

14.0

14.2

14.4

14.6

14.8

15.0

RA

MA PHC

H RHC

BAROMETRIC PRESSURE: 29.921 in. HG

Chart by: HANDS DOWN SOFTWARE, www.handsdownsoftware.com kcapodice Text Box

Humidification

Report Date: Friday, May 13, 2022 Project Information:

Altitude: 0 (Feet) Barometric Pressure: 29.921 (in.Hg) Atmospheric Pressure: 14.696 (psia)

1. OA

STATE POINT DATA

Air Flow

(Standard)

(cfm)

Dry

Bulb

(°F)

Wet

Bulb

(°F)

Relative

Humidity

Humidity

Ratio

(gr/lb)

Specific

Volume

(cu.ft./lb)

Enthalpy

(Btu/lb)

Dew

Point

(°F)

Density

(lb/cu.ft.)

Vapor

Pressure

(in.Hg)

Absolute

Humidity

(gr/cu.ft.)

6,970 11.000 8.000 43.4 4.2 11.873 3.279 -5.1510 0.0843 0.0287 0.353

2. RA

STATE POINT DATA

Air Flow

(Standard)

(cfm)

Dry

Bulb

(°F)

Wet

Bulb

(°F)

Relative

Humidity

Humidity

Ratio

(gr/lb)

Specific

Volume

(cu.ft./lb)

Enthalpy

(Btu/lb)

Dew

Point

(°F)

Density

(lb/cu.ft.)

Vapor

Pressure

(in.Hg)

Absolute

Humidity

(gr/cu.ft.)

21,060 70.000 59.719 55.0 60.3 13.533 26.200 53.1135 0.0745 0.4069 4.453

3. MA

STATE POINT DATA

Air Flow

(Standard)

(cfm)

Dry

Bulb

(°F)

Wet

Bulb

(°F)

Relative

Humidity

Humidity

Ratio

(gr/lb)

Specific

Volume

(cu.ft./lb)

Enthalpy

(Btu/lb)

Dew

Point

(°F)

Density

(lb/cu.ft.)

Vapor

Pressure

(in.Hg)

Absolute

Humidity

(gr/cu.ft.)

28,030 55.329 50.330 71.1 46.3 13.116 20.462 46.1419 0.0767 0.3137 3.531

Process: Air Mixing

State Point No. 1 Name

Air Flow

Standard

(cfm)

Dry

Bulb

(°F)

Humidity

Ratio

(gr/lb)

State Point No. 2 Name

Air Flow

Standard

(cfm)

Dry

Bulb

(°F)

Humidity

Ratio

(gr/lb)

OA 6,970 11.0 4.2 RA 21,060 70.0 60.3

4. PHC

STATE POINT DATA

Air Flow

(Standard)

(cfm)

Dry

Bulb

(°F)

Wet

Bulb

(°F)

Relative

Humidity

Humidity

Ratio

(gr/lb)

Specific

Volume

(cu.ft./lb)

Enthalpy

(Btu/lb)

Dew

Point

(°F)

Density

(lb/cu.ft.)

Vapor

Pressure

(in.Hg)

Absolute

Humidity

(gr/cu.ft.)

28,030 65.000 54.419 50.4 46.3 13.363 22.811 46.1419 0.0753 0.3137 3.466

Process: Sensible Heating

Start Point Name

Total

Heating

(tons)

Total

Energy

(Btu/hr)

Sensible

Energy

(Btu/hr)

Latent

Energy

(Btu/hr)

Moisture

Difference

(lb/hr)

Sensible

Heat Ratio

Enthalpy/

Humidity Ratio

(Btu/lb / lb/lb)

MA 25.1 301,253 301,253 0 0.0 1.000 N/A

5. H

STATE POINT DATA

Air Flow

(Standard)

(cfm)

Dry

Bulb

(°F)

Wet

Bulb

(°F)

Relative

Humidity

Humidity

Ratio

(gr/lb)

Specific

Volume

(cu.ft./lb)

Enthalpy

(Btu/lb)

Dew

Point

(°F)

Density

(lb/cu.ft.)

Vapor

Pressure

(in.Hg)

Absolute

Humidity

(gr/cu.ft.)

28,030 65.000 57.993 66.0 60.9 13.407 25.075 53.3812 0.0752 0.4109 4.539

Process: Humidification and Heating

Start Point Name

Total

Energy

(Btu/hr)

Sensible

Energy

(Btu/hr)

Latent

Energy

(Btu/hr)

Humidi-fication

(lb/hr)

Humidi-fication

(gal/hr)

Enthalpy/

Humidity Ratio

(Btu/lb / lb/lb)

Sensible Energy

Per Humidification

(Btu/lb)

PHC 284,980 -1 284,981 261.5 31.33 1,090 0.0

6. RHC

STATE POINT DATA

Air Flow

(Standard)

(cfm)

Dry

Bulb

(°F)

Wet

Bulb

(°F)

Relative

Humidity

Humidity

Ratio

(gr/lb)

Specific

Volume

(cu.ft./lb)

Enthalpy

(Btu/lb)

Dew

Point

(°F)

Density

(lb/cu.ft.)

Vapor

Pressure

(in.Hg)

Absolute

Humidity

(gr/cu.ft.)

28,030 70.000 59.857 55.5 60.9 13.534 26.295 53.3812 0.0745 0.4109 4.497

Process: Sensible Heating

Start Point Name

Total

Heating

(tons)

Total

Energy

(Btu/hr)

Sensible

Energy

(Btu/hr)

Latent

Energy

(Btu/hr)

Moisture

Difference

(lb/hr)

Sensible

Heat Ratio

Enthalpy/

Humidity Ratio

(Btu/lb / lb/lb)

H 12.7 152,954 152,954 0 0.0 1.000 N/A

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Humidification

Kevin

ACU-A-1

15 psi inlet 946 btu/lb

912 MBH

962 lb/hr

Kevin Text Box

ACU-A-2

15 psi inlet 946 btu/lb

1119 MBH

1180 lb/hr

Kevin Text Box

ACU-A-3

15 psi inlet 946 btu/lb

1649 MBH

1739 lb/hr

Kevin Text Box

ACU-A-4

15 psi inlet 946 btu/lb

1509 MBH

1592 lb/hr

Kevin Text Box

ACU-A-5

15 psi inlet 946 btu/lb

1690 MBH

1782 lb/hr

Kevin Text Box

ACU-A-6

15 psi inlet 946 btu/lb

1361 MBH

1435 lb/hr

High Purity Water Vendor Provided Narrative Government Scope of Work

Appendix – A.1

AE STATEMENT OF WORK

Replace/Refurbish HVAC Equipment, Mezzanine A, Building 101 at NIST Gaithersburg, MD

May 15, 2020

Background: Building 101 Is Multi story Admin building built in the 1960. Air handling units and Fans located inside the Mezzanine A Mechanical room are in operations for 60 years and failing. Following is general description of Air Handling Unit (AHU or ACU) AND Exhaust Fan (E).

• ACU-A-1 serves first floor offices, Basement Misc., areas and telephone room.

• ACU-A-2 serves corridor and main lobby.

• ACU-A-3 serves 101 perimeter induction units.

• ACU-A-4 serves 101 perimeter induction units.

• ACU-A-5 serves 101 perimeter induction units.

• ACU-A-6 serves perimeter induction units.

• E-A-1 serves ACU-A-1

• E-A-2 serves ACU-A-2

• E-A-3 serves ACU-A-3

• E-A-4 serves ACU-A-4

• E-A-5 serves ACU-A-5

• E-A-6 serves ACU-A-6

• E-A-7 serves A wing basement and first floor toilets.

• E-A-8 serves wing A mechanical equipment room 4 (A150).

• E-A-13 serves wing A sub-basement.

This design scope is to replace/refurbish Fans and preserve the ACUs shell and replace all the internal components and update DDC system to interconnect with the facility DDC system.

Period of Performance: 370 Days

Design to Construction Estimate: $2,500,000

Requirements:

1. AE shall provide Part “A” Architect Engineering design services in accordance with 48 CFR 836.606-73 (a).

The total cost of the architect or engineer services contracted for must not exceed 6 percent of the estimated cost of the construction project plus any fees for related services and activities such as those shown in paragraph (c) of 48 CFR 836.606-73

a. Design services shall include the following

1. Prepare and furnish construction drawings, specifications, calculations and two independent estimates.

2. Design HVAC replacement for current cooling and Heating requirement for non-insulated wall and occupant loading of 170 sq.ft/Person/floor. All HVAC equipment shall be air balanced to calculated air flows.

3. Design the replacement of the air handlers. The existing AHU shell shall remain. All other components shall be new.

4. Design the replacement to include providing new units if not existing, fans, coils, humidifiers, and filters.

5. Design shall include a new stainless-steel drain pan.

6. AE shall prepare a detail phasing plan for each ACU and Exhaust

Fan for the construction work.

7. Only one unit shall be refurbish/replaced at a time. Provide temporary heating and cooling to the facility for unit being replaced. Layout temporary ductwork in the phasing plan to assure NIST that there is space for temporary cooling and heating.

8. Design the replacement of the motor starters and disconnect switches. A new VFD will be designed however programmed for constant volume.

9. Design the replacement of the fan motor with a new VFD duty motor with new adjustable bases.

10. Design the primary and Back up clean steam generators for humidity control that can serve more than one AHU.

11. Design the replacement of all chilled water (supply and return) valves

12. Design the replacement of all steam and hot water (supply and return) valves.

13. Design shall include that all new control valves shall have Belimo actuators

14. Design the removal of the existing pneumatic control system within the AHU. The AE shall design an interface with the existing pneumatic thermostats in the spaces as they will remain. Provide specific notes on the drawings noting the interface for the pneumatic lines to remain.

15. Design for the replacement of the exterior fresh air intake and Exhaust Louvers.

16. Design for the replacement of the outside air, Mixed air, Exhaust air and return air dampers to include new actuators.

17. The existing units have a DDC network. Update Direct Digital Control (DDC) system for the AHUs and fans. Bldg. 101 has an existing Alerton DDC system. The updated DDC for AHUs and

Enrique Pencil

Fans will be interconnected via existing network to the existing Alerton system.

18. Design a new freezestat for each AHU.

19. Design for the reconnection of the site alarm monitoring device for the freezestat.

20. Design for the removal of the existing firestat(s) within the AHU.

21. Design a new Simplex Grinnell 4-Wire Smoke Duct Sensor

Mapnet/IDNET with 24VDC relay to shut down the AHU per IMC.

Included in the design is to reconnect the fan shutdown function via programmed fire alarm switch via the new smoke duct sensor.

22. Incorporate into the specifications NIST provided hazard material report for asbestos containing material. In addition, incorporate NIST provided asbestos abatement specification. AE is not responsible for the specification or test results.

23. Design shall include structural engineering services to include evaluation of the rooftop for temporary equipment and/or rigging equipment into and out of the building.

24. Design shall ensure that any exterior modifications to building are consistent with the historical features of the Building 101.

2. AE shall provide Part “B” Architect Engineering design services in accordance with 48

CFR 836.606-73 (c).

The 6 percent fee limitation does not apply to the following architect or engineer services:

(1) Investigative services including but not limited to:

(i) Determination of program requirements, including schematic or preliminary plans and estimates;

(ii) Determination of feasibility of proposed project;

(iii) Preparation of measured drawings of existing facility;

(iv) Subsurface investigation;

(v) Structural, electrical, and mechanical investigation of existing facility;

and

(vi) Surveys: topographic, boundary, utilities, etc.

(2) Special consultant services that are not normally available in organizations of architects or engineers and that are not specifically applied to the actual preparation of working drawings or specifications of the project for which the service are required.

(3) Other:

(i) Reproduction of approved designs through models, color renderings, photographs, or other presentation media;

(ii) Travel and per diem allowances other than those required for the development and review of working drawings and specifications;

(iii) Supervision or inspection of construction, review of shop drawings or samples, and other services performed during the construction phase; and

(iv) All other services that are not an integral part of the production and delivery of plans, designs, and specifications.

(4) The cost of reproducing drawings and specifications for bidding and their distribution to prospective bidders and plan file rooms.

a. Non-Design (Part B) services shall be as follows:

Task #1 - AE shall attend a project kick off meeting as scheduled by the contracting specialist.

Task #2 AE shall review, copy, and evaluate existing as-built drawings exist in hard copy or electronic format.

Task #3 AE shall schedule and review with NIST personnel on the specific features for this requirement. Meetings shall be separate for the following. Each meeting is expected to occur on the same day.

a. DDC personnel and HVAC – one meeting

b. Site alarm and AHJ – one meeting

c. Building 101 Building Manager

Task #4 AE shall investigate the existing AHU configuration to include

a. Valves

b. Motor and Motor base

c. Actuators

d. Coils

e. Filters

f. Drain Pans

g. Fan

h. Outside air dampers and Louvers

i. Exhaust air dampers and louvers

j. Mixed and Return air dampers

k. Drain points

Task #5 AE shall investigate and document the existing electrical power

a. Motor

b. Disconnect Switch

c. Overcurrent protection

d. Wiring and conduit

e. Attic layout to ensure space exists for new electrical equipment being designed

Task #6 AE shall investigate and document the existing pneumatic system

a. Existing pneumatic air lines within the Mechanical room that enter and leave AHUs.

b. Identify a physical location where the existing pneumatic to DDC interface could be installed.

Task #7 AE shall investigate and document the existing fire alarm system

a. Existing fire alarm panel location in the building.

b. Existing fire alarm MAPNET/IDNET point list and capacity to add more points

c. Existing fire alarm conduit layout

d. Existing fire stat

e. Existing freeze stat

f. Existing fire alarm monitor modules

g. Space and duct configurations to add a new smoke duct detector

h. Existing loading on the existing fire alarm panel

Task #8 AE shall investigate and document the existing DDC network connection/hardware for AHUs and Fans.

a. Existing DDC panel/interconnection point within Bldg 101

b. Existing bldg. layout for new conduit and wiring from the

DDC panel/interconnection point to AHUs and Fans.

c. Existing DDC nomenclature and unique system requirements

Task #9 Specify device plan for Testing and Commissioning of HVAC Equipment.

Task #10 Develop two independent construction cost estimates. Estimators must visit NIST at least once. Submit estimates @ 65%, 95% and 100%.

Task #11 AE shall review each deliverable, arrange for copying, and delivery each deliverable specified in the statement of work.

Task #12 AE shall review and respond to Government review comments for each deliverable specified in the statement of work.

Task #13 AE Shall include the following additional meetings beyond those

AE Determines Are Important to Learn Requirements.

Kick off meeting to start the project within 7 days of task order award.

The board review meeting to present 65% submission.

The board review meeting to present 95% submission.

Task #14 AE shall provide a health and safety plan checklist.

b. Non-Design (Post Construction Award Services (PCAS) services shall be as follows:

Task #1 Attend bi-weekly construction progress meetings.

Task #2 Review and approval of shop drawings, material samples and manufacturer certifications.

Task #3 Consultation (In-office) to the Government during the course of construction.

Task #4 Consultation (At Construction Site) to the Government during the course of construction.

Task #5 Provide response to RFI with contract documents and estimates.

Task #6 Punch list of the incomplete or deficient work items.

Task #7 Field inspection reports with construction progress pictures.

Task #8 Participate in commissioning HVAC Equipment.

Task #9 Prepare asbuilt (Record) drawings in AUTOCAD and PDF format and submit to government.

Task #10 Prepare and submit form NIST-383, NIST WORK PERMIT.

NOTE TO NIST CORS – DO NOT DELETE “NIST WORK

PERMIT” PASSAGES BELOW

1. AE shall prepare and submit NIST WORK PERMIT (form NIST-383) in accordance with NIST suborder S 7401.01 FIRE PROTECTION & LIFE SAFETY FOR DESIGN AND CONSTRUCTION, Part 3: APPLICABILITY. This suborder is available online at:

https://oshe.nist.gov/apps/docs/programs/Documents/NIST%20S%207401- 01_Fire%20Protection%20Life%20Safety%20for%20Design%20and%20Construction%20 _093017.docx

If this suborder is applicable to the design, submittals will be required per Part 6:

REQUIREMENTS Section f: A/E Design and Construction Submittals, in adherence with codes and regulations as called out in Part 4: REFERENCES and directives as called out in Part 5: APPLICABLE NIST DIRECTIVES.

Deliverables:

A. AE shall provide a NIST WORK PERMIT within 14 days of task order award in accordance with Section 3 above.

a. NIST will review the fire protection and life safety submittals per submittal schedule called out in NIST suborder S 7401.01 FIRE PROTECTION & LIFE SAFETY

FOR DESIGN AND CONSTRUCTION.

B. AE shall provide a health and safety checklist within 14 days of task order award.

a. NIST will review the checklist within 21 days which allots time for AE revisions/resubmissions.

C. AE shall provide a 65% design submittal within 150 calendar days of receipt of

Government comments.

a. AE shall submit 7 half size sets, and 2 full size sets.

b. AE shall submit on CD, one PDF set and one complete AUTOCAD set of Drawings for review.

https://oshe.nist.gov/apps/docs/programs/Documents/NIST%20S%207401-01_Fire%20Protection%20Life%20Safety%20for%20Design%20and%20Construction%20_093017.docx https://oshe.nist.gov/apps/docs/programs/Documents/NIST%20S%207401-01_Fire%20Protection%20Life%20Safety%20for%20Design%20and%20Construction%20_093017.docx https://oshe.nist.gov/apps/docs/programs/Documents/NIST%20S%207401-01_Fire%20Protection%20Life%20Safety%20for%20Design%20and%20Construction%20_093017.docx

c. AE shall submit on CD, one PDF set and one complete WORD set of Specifications for review.

d. AE shall submit on CD, one PDF set of reports, calculations and cuts.

AE shall submit two independent estimates to the COR.

D. Government will review and comment on the 65% submittal within 21 calendar days receipt of the basis of design.

E. AE shall provide a 95% design submittal within 120 calendar days of receipt of

Government comments.

a. AE shall submit 7 half size sets, and 2 full size sets.

b. AE shall submit on CD, one PDF set and one complete AUTOCAD set of Drawings for review.

c. AE shall submit on CD, one PDF set and one complete WORD set of Specifications for review.

d. AE shall submit on CD, one PDF set of reports, calculations and cuts.

e. AE shall submit two independent estimates to the COR.

F. Government will review and comment on the 95% submittal within 21 calendar days receipt of the basis of design.

G. AE shall provide a 100% design submittal (with specifications) within 21 Calendar days of receipt of Government comments.

a. AE shall submit 7 half size sets, 2 full size sets, and 1 Mylar Set

b. AE shall submit one PDF set and one complete AUTOCAD set for review.

c. AE shall submit one PDF set and one complete WORD set of Specifications for review.

d. AE shall submit on CD, one PDF set of reports, calculations and cuts.

e. AE shall submit two independent estimates from two independent firms to the

COR. In the event, there is a 10% price discrepancy between the two estimates;

the AE shall prepare a report identifying the discrepancy and remedies to resolve the discrepancy.

f. AE shall determine the period of performance for the contractor to construct the facility once a notice to proceed has been issued by the contracting officer.

Total – 370 Days

CAD

1. Drawings shall be prepared in accordance with United States Army Corps of Engineers A/E/C CAD Standard Release 9.0 or higher https://cadbimcenter.erdc.dren.mil/default.aspx?p=a&t=1&i=2

2. Drawings shall be prepared in AUTODESK AUTOCAD version 2018 or higher

Invoicing: Refer to Base contract for specific invoicing instructions

1. Contractor shall invoice the government based on AE provided schedule of values.

Schedule of values shall be associated with the deliverables identified in paragraph 3 – “Deliverables”.

END OF STATEMENT OF WORK

https://cadbimcenter.erdc.dren.mil/default.aspx?p=a&t=1&i=2

High Purity Water Vendor Provided Narrative Equipment

Appendix – A.2

PRODUCT OVERVIEW

ACH580-01/-31

The ACH580 drive sets new standards in both simplicity and reliability, and ensures smooth, energy-efficient operation of your HVAC systems in normal and mission-critical situations.

ACH580-01, wall-mounted base drives The ACH580-01 wall-mounted drives are available from 1 to 100 HP at 208/240 V, 1 to 350 HP at 480 V, and 2 to 250 HP at 575 V. The ACH580-01 drives are available in UL (NEMA) Type 1 and 12 configurations.

In standard installations, the drive is mounted directly onto a wall and uses the provided conduit box. Conduit openings are provided for bottom conduit entry & exit. For mounting in a customer-supplied cabinet, the conduit box may be removed. The drive has a 100 kA SCCR rating when paired with appropriately sized upstream fuses.

ACH580-31, ultra low harmonic wall-mounted base drives The ACH580-31 wall-mounted drives are available from 5 to 400 HP at 480 V. The ACH580-31 are available in UL (NEMA) Type 1 and 12 configurations. In standard installations, the drive is mounted directly onto a wall and uses the provided conduit box. Conduit openings are provided for bottom conduit entry and exit. For mounting in a customer-supplied cabinet, the conduit plate may be removed.

Features for HVAC The ACH580 comes standard with an intuitive control panel used to configure, control, and monitor the drive. An optional Bluetooth control panel allows the drive to be configured via the control panel or the DriveTune app.

A robust HVAC firmware package provides drive, motor, and application protection features. Examples of drive protection features include undervoltage, overvoltage, overcurrent, and ground fault protection. The ACH580 also has a variety of motor protection features including overload and stall protections.

Application specific features, such as accepting four separate start interlocks (safeties), along with broken belt detection, are also included. The drive includes BACnet MS/TP, Modbus RTU, and Johnson N2 as standard.

Additional protocols, such as BACnet/IP and LonWorks , are available with optional fieldbus adapters.

Technical specifications

Product compliance (complete list on following page)

ACH580-01/-31 CE, UL, cUL, and EAC

Supply connection

Input voltage (U1) ACH580-xx-xxxA-2 ACH580-xx-xxxA-4 ACH580-xx-xxxA-6 Input voltage tolerance Phase

208/240V 480V 600V +10% / -15% 3-phase (1-phase, 240 V)

Frequency 48 to 63 Hz Line Limitations Max ±3% of nominal phase to phase input voltage Power Factor (cos φ) at nominal load

ACH580-01

ACH580-31

0.98 1.0

Efficiency at rated power

ACH580-01

ACH580-31

98.0% 96.5%

Power Loss Approximately 2% of rated power

Motor connection

Supported motor control Scalar and vector

Supported motor types Asynchronous motor, permanent magnet motor (vector), SynRM (vector)

Voltage 3-phase, from 0 to supply voltage

Frequency 0 to 500 Hz

Short Term Overload Capacity Variable Torque 110% for 1 min/10min

Peak Overload Capacity Variable Torque

1.35 for 2 second (2 sec / 10 min)

Switching Frequency 2, 4, 8 or 12 kHz Automatic fold back in case of overload

Acceleration/Deceleration Time 0 to 1800 s

Short Circuit Current Rating (SCCR) 100 ka with fusing

Inputs and outputs (drive)

2 analog inputs Selection of Current/Voltage input mode is user programmable.

Voltage reference 0 (2) to 10 V, Rin > 200 kΩ

Current reference 0 (4) to 20 mA, Rin = 100 Ω

Potentiometer reference value 10 V ±1% max. 20 mA

2 analog outputs AO1 is user programmable for current or voltage.

AO2 current

Voltage reference 0 to 10 V, Rload: > 100 kΩ

Current reference 0 to 20 mA, Rload: < 500 Ω

Applicable potentiometer 1 kΩ to 10 kΩ

Internal auxiliary voltage 24 V DC ±10%, max. 250 mA

Accuracy +/- 1% full scale range at 25°C (77°F)

Output updating time 2 ms

6 digital inputs

12 to 24 V DC, 10 to 24 V AC, Connectivity of PTC sensors supported by a single digital input.

PNP or NPN connection (5 DIs with NPN connection).

Programmable

Input Updating Time 2 ms

3 relay outputs

Maximum switching voltage

250 V AC/30 V DC.

Maximum continuous current 2 A rms.

Programmable, Form C

Adjustable filters on analog inputs and outputs

All control inputs isolated from ground and power

Operation

Air temperature

0 to -15 °C (32 to 5 °F).

-15 to +50 °C (5 to 122 °F):

No frost allowed.

Output derated above +40 °C (104 °F)

Installation site altitude 0 to 4000 m (13123 ft) above sea level Output derated above 1000 m (3281 ft)

Relative humidity

5 to 95% No condensation allowed Maximum relative humidity is 60% in the presence of corrosive gasses

Atmospheric pressure 70 to 106 kPa (10.2 to 15.4 PSI)

0.7 to 1.05 atmospheres

Vibration Risk category IV Certified (IBC 2018)

Environmental protections

Chemical Gasses Class 3C2

Solid Particles Class 3S2 No conductive dust allowed

Pollution degree (IEC/EN 61800-5-1) Pollution degree 2

Product compliance

Standards and directives Low Voltage Directive 2006/95/EC EMC Directive 2004/108/EC 60721-3-3: 2002 60721-3-1:1997 Quality assurance system ISO 9001 and Environmental system ISO 14001 CE, UL, cUL, and EAC approvals Galvanic isolation according to PELV RoHS2 (Restriction of Hazardous Substances)

EN 61800-5-1: 2007; IEC/EN 61000-3-12;

EN61800-3: 2017 + A1: 2012 Category C2 (1st environment restricted distribution);

Safe torque off (EN 61800-5-2) BACnet Testing Laboratory (BTL) Seismic (IBC, OSHPD) Plenum (ACH580-01 only)

EMC (according to EN61800-3) ACH580-01 and ACH580-31 class C2 (1st environment restricted distribution)

Storage (in Protective Shipping Package)

Air Temperature -40 to +70 °C (-40 to +158 °F)

Relative Humidity

Less than 95% No condensation allowed Maximum relative humidity is 60% in the presence of corrosive gasses

Chemical Gasses Class 1C2

Solid Particles Class 1S2 Contact ABB regarding Class 1S3

Atmospheric pressure 70 to 106 kPa

0.7 to 1.05 atmospheres

Vibration (ISTA) R1…R4 R5…R9

In accordance with ISTA 1A In accordance with ISTA 3E

Transportation (in Protective Shipping Package)

Air Temperature -40° to 70°C (-40° to 158°F)

Relative Humidity

Less than 95% No condensation allowed Maximum relative humidity is 60% in the presence of corrosive gasses

Atmospheric Pressure 60 to 106 kPa (8.7 to 15.4 PSI)

0.6 to 1.05 atmospheres

Free Fall

R1: 76 cm (30 in) R2: 61 cm (24 in) R3: 46 cm (18 in) R4: 31 cm (12 in) R5: 25 cm (10 in)

Chemical Gasses Class 2C2

Solid…