SOW Attachment (1) Contract Drawings.pdf

PDF 3 MB Posted Sep 3, 2021

Attached to: NSWCPD BLDG 4 AHU 3 Repairs (21-N E-084)
Solicitation number: N6449821Q0257
Issued by: Department of the Navy Naval Sea Systems Command

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Other files

File	Type	Posted
Amendment 0002.pdf	PDF	Sep 22, 2021
Amendment 0001.pdf	PDF	Sep 20, 2021
Brand Name Justification - Bldg 4 AHU-3 Repairs_FINAL - Redacted.pdf	PDF	Sep 3, 2021
SOW Attachment (2) NSWCPD Entry Screening Assessment.pdf	PDF	Sep 3, 2021
SOW Attachment (6) Mobile Construction Equipment Checklist.pdf	PDF	Sep 3, 2021
SOW Attachment (7) Contractor Production Report Form.doc	DOC document	Sep 3, 2021
Attachment (9) Past Performance Questionnaire_FINALIZED VERSION.doc	DOC document	Sep 3, 2021
SOW Attachment (3) Requirements for Contractor Lift Operations.pdf	PDF	Sep 3, 2021
SOW Attachment (4) Activity Hazard Analysis Form.docx	DOCX document	Sep 3, 2021
SOW Attachment (5) Contract Progress Report.pdf	PDF	Sep 3, 2021
N6449821Q0257 finalized 20210903.pdf	PDF	Sep 3, 2021
Attachment (8) Construction Cost Breakdown.xlsx	XLSX spreadsheet	Sep 3, 2021

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NAVAL SURFACE WARFARE CENTER

PHILADELPHIA DIVISION

PHILADELPHIA NAVY YARD ANNEX

PHILADELPHIA, PENNSYLVANIA

BUILDING 4

AIR HANDLING UNIT (AHU) 3 REPAIRS

VICINITY PLAN LOCATION PLAN

G-001

N .T

SECURITY BADGING OFFICE

CONTRACT ADMINISTRATION AND

OVERSIGHT OFFICES

PROJECT SITE

15 4 3 2

5 14 3 2

PROJECT NORTH

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REVISION TABLE

SYM DESCRIPTION DATE APPR

PREFINAL DRAWING 7/22/21

A C

H M

MEP-001

N .T

N O

MECHANICAL ABBREVIATIONS GENERAL MECHANICAL NOTES

1. GENERAL NOTES ARE DISCIPLINE SPECIFIC, AND APPLY TO EVERY DRAWING IN THAT DISCIPLINE. GENERAL SHEET NOTES APPLY TO WORK

SHOWN ON A DRAWING. SHEET KEY NOTES NOTES APPLY TO INDIVIDUAL SITUATIONS AND EQUIPMENT.

2. WORK MUST BE PERFORMED IN ACCORDANCE WITH FEDERAL, STATE AND LOCAL CODES AND STANDARDS ENFORCED BY THE LOCAL

REGULATING AUTHORITIES.

3. COMPLETELY EXAMINE THE SITE AND OBSERVE THE CONDITIONS UNDER WHICH THE WORK WILL BE INSTALLED. NO ALLOWANCES WILL BE MADE FOR ERRORS OR OMISSIONS RESULTING FROM THE CONTRACTOR'S FAILURE TO COMPLETELY EXAMINE THE SITE.

4. INSTALL NEW WORK SUCH THAT CLEARANCES ARE PROVIDED AS REQUIRED BY THE MANUFACTURER TO ALLOW FULL ACCESSIBILITY FOR

OPERATION AND ROUTINE MAINTENANCE OF COMPONENTS.

5. CONTRACTOR SHALL COMPLETELY RESEAL ALL NEW OPENINGS AND PENETRATIONS IN THE AIR HANDLING UNIT ENCLOSURE AT THE COMPLETION

OF WORK IN ACCORDANCE WITH ASHRAE STANDARDS.

6. COMPLY WITH SMACNA "HVAC DUCT CONSTRUCTION AND STANDARDS" AND OTHER APPLICABLE STANDARDS INCLUDED IN THE SPECIFICATIONS

FOR THE CONSTRUCTION AND SUPPORT OF DUCT ACCESS DOORS, UNLESS OTHERWISE NOTED.

7. MAKE PROPER CONNECTION TO FIXTURES AND EQUIPMENT. DRAWINGS ARE SCHEMATIC AND BRANCH MAINS, ELBOWS,AND CONNECTIONS ARE

NOT ALL SHOWN.

8. COORDINATE INSTALLATION OF PIPING AND EQUIPMENT WITH MECHANICAL AND ELECTRICAL DISCIPLINES, AS WELL AS OTHER PLUMBING WORK.

9. DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED.

10. INSTALL VALVES SUCH THAT THEY ARE ACCESSIBLE.

11. DETAILS WITHOUT SPECIFIC REFERENCES TO A LOCATION MUST BE APPLIED TO THE GENERAL INSTALLATION OF MECHANICAL WORK.

12. BAS DDC TERMINATIONS WILL BE PROVIDED BY THE GOVERNMENT AT THE DDC CABINET. PROVIDE FOUR (4) FEET OF EXCESS CABLE AT THE

CABINET FOR GOVERNMENT TERMINATIONS.

13. PNEUMATIC ACTUATOR CONTROLS OPERATE BETWEEN 3-15 PSI.

14. INSTALL ALL MATERIAL AND EQUIPMENT IN ACCORDANCE WITH THE MANUFACTURER'S WRITTEN INSTRUCTIONS. PROVIDE ALL MATERIAL NOT FURNISHED BY THE MANUFACTURER BUT NECESSARY FOR A COMPLETE INSTALLATION AT NO ADDITIONAL COST TO THE GOVERNMENT.

15. ALL WORK SHALL CONFORM THE SAFETY REQUIREMENTS DEFINED IN THE UNITED STATES ARMY CORP OF ENGINEERS EM 385-1-1 HEALTH AND

SAFETY REQUIREMENTS MANUAL.

16. NO WORK MAY BEGIN ON A SYSTEM UNTIL ALL PRE-WORK SUBMITTALS ARE APPROVED AND MATERIAL IS ONSITE..

17. CONTRACTOR SHALL SEQUENCE WORK SUCH THAT DOWNTIME ON THE AHU IS MINIMIZED.

18. AHU IS WINTERIZED BETWEEN 15 OCTOBER AND 15 APRIL OF EACH CALENDAR YEAR. FINAL ACCEPTANCE OF CHILLED WATER COILS CANNOT

OCCUR DURING THIS PERIOD.

19. PROVIDE NEW INSULATION ON ALL NEW PIPING, VALVES, AND FITTINGS OR WHERE INSULATION IS REMOVED TO SUPPORT ADJACENT WORK.

20. CONTRACTOR SHALL SCHEDULE AND SEQUENCE WORK SUCH THAT THE DURATION THE UNIT IS INOPERABLE IS MINIMIZED TO THE MAXIMUM

EXTENT PRACTICAL.

MECHANICAL SYMBOLS

15 4 3 2

5 14 3 2

PROJECT NORTH

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REVISION TABLE

SYM DESCRIPTION DATE APPR

PREFINAL DRAWING 7/22/21

UNION

3-WAY CONTROL VALVE

THERMOMETER

THERMAL WELL

PRESSURE GAUGE

WITH SHUT-OFF COCK

AIR VENT WITH PLUG

DRAIN VALVE WITH

HOSE COUPLING

MOTORM

AFF ABOVE FINISHED FLOOR

AHU AIR HANDLING UNIT

ASHRAE AMERICAN SOCIETY OF HEATING, REFRIGERATING

AND AIR-CONDITIONING ENGINEERS

BAS BUILDING AUTOMATION SYSTEM

BTU BRITISH THERMAL UNIT

CFM CUBIC FEET PER MINUTE

CHWS CHILLED WATER SUPPLY

D.B. DRY BULB

DDC DIRECT DIGITAL CONTROLLER

EX EXISTING

°F DEGREES FAHRENHEIT

FPM FEET PER MINUTE

FT FOOT OR FEET

GPM GALLONS PER MINUTE

HOA HAND/OFF/AUTO SWITCH OR INDICATOR

HP HORSEPOWER

MBH THOUSAND BTUS PER HOUR

MEP MECHANICAL-ELECTRICAL-PLUMBING

PSI POUNDS PER SQUARE INCH

RF RETURN FAN

RPM REVOLUTIONS PER MINUTE

SF SUPPLY FAN

SYS SYSTEM

VFD VARIABLE FREQUENCY DRIVE

W.B. WET BULB

WG WATER GAUGE

MEP-101

N .T

N O

GENERAL MECHANICAL NOTES

1. PHOTOGRAPHS OF SELECT EXISTING CONDITIONS ARE PROVIDED ON DRAWING MEP-901.

2. EQUIPMENT AND PIPING SHOWN ON THIS SHEET IS SHOWN TO CONVEY GENERAL LAYOUT OF THE SPACE RELATIVE TO OTHER MAJOR HVAC EQUIPMENT. DRAWING IS NOT PROVIDED TO CONVEY ACTUAL DIMENSIONS NOR IS IT PROVIDED AS A COMPREHENSIVE LAYOUT OF FEATURES

AND OBSTRUCTIONS IN THE VICINITY OF THE WORK SITE.

3. DUCTWORK NOT SHOWN FOR CLARITY.

4. SUPPLY AND RETURN PIPING FOR CHILLED WATER AND GLYCOL LOOPS ARE SIMPLIFIED ON THIS DRAWING AND DO NOT SHOW ALL BRANCH LINES, FITTINGS, VALVES, GAUGES, AND COMPONENTS. REFER TO DRAWING MEP-501 FOR MORE DETAILS ON PIPING CONFIGURATION.

5. TURN OVER EXISTING FAN MOTORS AND PNEUMATIC VALVE ACTUATORS TO GOVERNMENT.

15 4 3 2

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REVISION TABLE

SYM DESCRIPTION DATE APPR

PREFINAL DRAWING 7/22/21

SCALE: 1/4" = 1'-0"A4 FOURTH FLOOR PLAN

AHU-2AHU-3

AHU-7

AHU-6

ILL

RF-3

AHU-1 AHU-2AH

U-

AHU-7

AHU-4 CT-2CT-1

AHU-6

ILL

RF-3

KEY PLAN

SF-3

AHU-3 DDC

5 6

1. AIR HANDLING UNIT (AHU) 3 BRANCH SUPPLY AND RETURN PIPING CONTINUES TO MAINS FOR CHILLED WATER AND HOT GLYCOL LOOPS. PIPING IS INSULATED WITH A JACKETED 1-INCH THICK FIBERGLASS INSULATION.

2. PROVIDE A NEW 3-INCH THREE-WAY MIXING VALVE WITH PNEUMATIC ACTUATOR FOR CHILLED WATER LOOP FEED TO AHU-3.

VALVE COEFFICIENT OF VOLUME SHALL BE 75 +/- 5 PERCENT. PROVIDE ACTUATORS WITH ALL NECESSARY PNEUMATIC TUBING, CONDUIT, AND CONTROL WIRING BACK TO THE AHU-3 DDC CABINET. PROVIDE 4-FEET OF EXCESS LENGTH OF CONTROL WIRING AT THE CONTROL CABINET. GOVERNMENT TO TERMINATE WIRING IN DDC CABINET. ADDITIONALLY, PROVIDE 3-INCH FULL PORT BALL-TYPE ISOLATION VALVE, 0-100 PSI PRESSURE GAUGE, AND 0-120°F THERMOMETER ON BOTH THE SUPPLY AND RETURN PIPING. PROVIDE PRESSURE GAUGES WITH NEW BALL VALVES. FULLY REPLACE AND SEAL ALL

INSULATION REMOVED TO SUPPORT THIS WORK.

3. PROVIDE A NEW 1-1/4 INCH THREE-WAY MIXING VALVE WITH PNEUMATIC ACTUATOR FOR GLYCOL LOOP FEED TO AHU-3.

VALVE COEFFICIENT OF VOLUME SHALL BE 95 +/- 5 PERCENT. PROVIDE ACTUATORS WITH ALL NECESSARY PNEUMATIC TUBING, CONDUIT, AND CONTROL WIRING BACK TO THE AHU-3 DDC CABINET. PROVIDE 4-FEET OF EXCESS LENGTH OF CONTROL WIRING AT THE CONTROL CABINET. GOVERNMENT TO TERMINATE WIRING IN DDC CABINET. ADDITIONALLY, PROVIDE 1-1/2 INCH FULL PORT BALL-TYPE ISOLATION VALVE, 0-100 PSI PRESSURE GAUGE, AND 0-120°F THERMOMETER ON BOTH THE SUPPLY AND RETURN PIPING. PROVIDE PRESSURE GAUGES WITH NEW BALL VALVES. FULLY REPLACE AND SEAL

ALL INSULATION REMOVED TO SUPPORT THIS WORK.

4. REMOVE EXISTING DISCONNECT SWITCH AND UNISTRUT MOUNT ENTIRELY. REPLACE WITH A VARIABLE FREQUENCY DRIVE WITH INTEGRATED DISCONNECT SWITCH AND THREE-CONTACTOR BYPASS. PROVIDE A NEW UNI-STRUT MOUNT WITHIN FIVE

(5) FEET OF THE EXISTING DISCONNECT FOR THE VARIABLE FREQUENCY DRIVE TO MAINTAIN REQUIRED CLEARANCES. REFER TO DRAWING MEP-501 FOR MOUNT DETAILS AND COORDINATE EXACT LOCATION WITH GOVERNMENT. PROVIDE RIGID METALLIC CONDUIT, FITTINGS, FASTENERS, JUNCTION BOX, AND CONDUCTORS AS REQUIRED TO RELOCATE POWER FEED.

CONTRACTOR MAY RE-USE UNISTRUT COMPONENTS PROVIDED COMPONENTS ARE NOT DAMAGED AND ARE NOT CORRODED.

5. REMOVE EXISTING FAN MOTOR AND REPLACE WITH VFD RATED MOTOR. SEE DRAWING MEP-501 FOR DETAILS ON THE MOTOR SCHEDULE. PROVIDE MOTOR WITH NEW SET OF SHEAVES SIZED TO MATCH THE EXISTING SHEAVES AND PROVIDE WITH TWO SETS OF DRIVE BELTS (ONE SPARE SET). REPLACE BOTH BEARINGS ON 2-1/2 INCH FAN SHAFT COUPLED TO EACH MOTOR.

6. REMOVE EXISTING VORTEX DAMPERS FROM SUPPLY FAN INTAKES. REMOVE PNEUMATIC CONTROLS BACK TO SOURCE AND

CAP ANY OPEN PORTS. TURN OVER PNEUMATIC ACTUATORS TO GOVERNMENT.

7. PROVIDE NEW CHILLED WATER AND HOT GLYCOL COILS WITH PRESSURE RELIEF FREEZE PROTECTION. PROVIDE

PREFABRICATED ACCESS DOORS TO SERVICE RELIEF VALVES.

8. CLEAN FAN BLOWER WHEEL AND BALANCE FAN. TYPICAL FOR SUPPLY AND RETURN FAN.

9. EXISTING BAS DDC CABINET.

NEW WORK KEY NOTES:

W R

MEP-102

1 4"

'-0

O N

15 4 3 2

5 14 3 2

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REVISION TABLE

SYM DESCRIPTION DATE APPR

PREFINAL DRAWING 7/22/21

SCALE: 1/4" = 1'-0"A1 AHU-3 PHOTOGRAPH KEY PLAN

AHU-2AH

U-

AHU-7

AHU-6

ILL

RF-3

C5C2

B5B2

MEP-901

MEP-901MEP-901

MEP-901

MEP-901MEP-901

MEP-901

3/4" DRAIN W/GATE VALVE

& HOSE COUPLING (EX)

3/4" DRAIN W/GATE VALVE

GLYCOL PIPING (EX)

CHWS & HOT

BALL VALVE

PRESSURE GAGE

W/ BALL VALVE

HOT GLYCOL OR

COOLING COILS

REDUCER (EX)

CHWR & HOT GLYCOL

PIPING (EX)

3-WAY CONTROL VALVE

CALIBRATED

BALANCING VALVE (EX)

UNION (EX)

THERMOMETER WITH

SEPARABLE SOCKET

AIR VENT - 3/4" GATE

VALVE WITH CAP (EX)

W/ PNEUMATIC ACTUATOR

MEP-501

N .T

GENERAL SHEET NOTES

1. CONTRACTOR SHALL PROVIDE ALL PIPING, FITTINGS, AND MODIFICATIONS OF EXISTING PIPING AND FITTINGS AS NECESSARY TO FACILITATE

INSTALLATION OF NEW WORK.

2. INSULATE ALL NEW PIPING WITH 1-INCH THICK FIBERGLASS INSULATION WITH VAPOR RETARDANT JACKET. SEAL AGAINST ADJACENT INSULATION TO MAINTAIN A CONTINUOUS VAPOR BARRIER. WHERE INSULATION IS REMOVED FROM EXISTING PIPING TO REMAIN, PROVIDE NEW

INSULATION SYSTEM. DO NOT RE-USE INSULATION.

3. DETAILS PROVIDED ON THIS SHEET ARE DIAGRAMMATIC ONLY. THE DETAILS ARE NOT TO SCALE, DO NOT REFLECT THE ACTUAL GEOMETRIC CONFIGURATION OF THE PIPING SYSTEM, AND DO NOT DEPICT ALL ADJACENT OBSTRUCTIONS. CONTRACTOR SHALL OBTAIN AND/OR VERIFY ALL

DIMENSIONS AND COMPONENTS.

15 4 3 2

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REVISION TABLE

SYM DESCRIPTION DATE APPR

PREFINAL DRAWING 7/22/21

SCALE: N.T.S.A5 AIR HANDLING UNIT COIL & PIPING

CFM THRU

COIL

FACE VEL.

(FPM)

AIR

FRICTION IN.

WG.

AIR ENT.

TEMP (°F)

AIR LEAVING

TEMP (°F)

TOTAL

SENSIBLE

HEAT RATIO

TOTAL LOAD

(MBH) MIN. ROWS FINS PER

FOOT

WATER

FLOW (GPM)

WATER P.D.

(FT. H20)UNIT ENT. WATER

TEMP (°F)

D.B. W.B. D.B. W.B.

CHILLED

WATER

COIL

PREHEAT

COIL

22,575 456 0.27 80.0 67.0 57.3 55.0 0.76 657.8 4 86 109.5 9.8 44

26,930 456 0.06 58.5 77.8 - 501.2 - - 27.3 0.4 180

COIL HEAT EXCHANGER SCHEDULE

TOTAL AIR

FLOWRATE

(CFM)

OUTSIDE AIR

FLOWRATE

(CFM)

EXT. STATIC

PRESSURE

IN. WG.

TOTAL STATIC

PRESSURE IN.

WG.

FAN

SPEED

(RPM)

MINIMUM

HP VOLTSUNIT

SUPPLY

FAN

RETURN

FAN

30,700 5250

26,930 -

EXISTING FAN SCHEDULE

BREAKER CONTROL

TRANSFORMER AGA STAT

CONTACTOR

FUSE

HOLDER

CONTACTOR

TRANSFORMER

CURRENT

TRANSFORMER

HOA/LIGHT

1. REMOVE COMPONENT. RECONNECT AND/OR SPLICE WIRING AS NECESSARY TO PROVIDE POWER TO SUPPLY

FAN MOTOR. CONTRACTOR MAY REUTILIZE EXISTING WIRING.

2. REMOVE COMPONENT AND WIRING BACK TO SOURCE.

3. EXISTING COMPONENT TO-REMAIN.

KEYED NOTES:

SCALE:A2 AHU-3 MOTOR CONTROL CENTER - SUPPLY FAN

3 2

NOTES:

1. SLOPE DRAIN PAN AND COILS SUFFICIENTLY SUCH THAT REFRIGERANT AND CONDENSATE DRAIN TO DRAIN PIPE AND COIL DRAIN VALVE, RESPECTIVELY.

2. DRAIN AND ISOLATE SYSTEM AS REQUIRED TO SUPPORT WORK. REFILL SYSTEM AT COMPLETION OF WORK.

OUTLET

VELOCITY

(FPM)

PHASE

0.8 1.6 1806 1010 20 480 3

- 0.8 0.8 1699 502 10 480 3

1. PROVIDE THERMAL EXCHANGE COILS. TYPICAL FOR GLYCOL AND CHILLED WATER SYSTEMS. EACH SYSTEM CONSIST OF TWO THERMAL EXCHANGE COILS STACKED VERTICALLY. CHILLED WATER COILS ARE INSTALLED IN PARALLEL WITH ONE ANOTHER; HOT GLYCOL COILS ARE INSTALLED IN PARALLEL WITH ONE ANOTHER. EACH COIL ASSEMBLY (TWO TOTAL FOR EACH SYSTEM - CHILLED WATER AND GLYCOL SYSTEMS) IS APPROXIMATELY 112-INCHES WIDE BY 72-INCHES HIGH. PROVIDE COILS WITH PLUGGED VALVE AIR VENTS.

2. PROVIDE NEW THREE-WAY CONTROL VALVE WITH PNEUMATIC ACTUATOR. TYPICAL FOR GLYCOL AND CHILLED WATER LOOPS.

3. PROVIDE NEW 0-120°F THERMOMETER AND 0-100 PSI PRESSURE GAUGE. TYPICAL FOR GLYCOL AND CHILLED WATER LOOPS.

4. PROVIDE FULL PORT BALL VALVE. VALVE IS 1-1/2 INCH ON GLYCOL SYSTEM AND 3-INCH ON CHILLED WATER SYS.

5. PROVIDE FREEZE PROTECTION PRESSURE RELIEF VALVES ON CHILLED WATER COILS. PROVIDE ACCESS TO VALVES. ACCESS OPENING

SHALL PROVIDE SUFFICIENT CLEARANCE FOR INSPECTION AND MAINTENANCE OF FREEZE PROTECTION VALVES AND SHALL BE IN ACCORDANCE WITH MANUFACTURER RECOMMENDED CLEARANCES. OPENING SHALL BE FACTORY FABRICATED ACCESS DOORS THAT UTILIZE QUARTER TURN FASTENERS OR CAM LOCKS AND SHALL BE GASKETED AND/OR SEALED FOR AN AIRTIGHT SEAL (NOT SHOWN AS

RELIEF VALVES ARE TYPICALLY ON SIDE OPPOSITE OF COIL MANIFOLD).

KEYED NOTES:

COMMUNICATION

CABLING TO DDC

CABINET

POWER CONDUCTORS

FROM EXISTING DISCONNECT

TO BE REMOVED

POWER CONDUCTORS

TO SUPPLY OR RETURN FAN

MOTOR

SCALE:A4 VFD UNITSTRUT MOUNTING DETAIL

NOTES:

1. MOUNT NEW VFD ON A UNISTRUT MOUNTING RACK. RACK SHALL INCLUDE CROSS BRACING,

HARDWARE, FASTENERS, AND A BASE PLATE ANCHORED INTO THE EXISTING CONCRETE SLAB.

MOUNT VFD AT A HEIGHT SUCH THAT PROGRAMMING INTERFACE IS APPROXIMATELY 48-INCHES AFF.

2. CONDUIT RUN SHALL UTILIZE RIGID METALLIC CONDUIT AND FITTINGS. FINAL CONNECTION TO

MOTOR SHALL USE FLEXIBLE CONDUIT.

3. COORDINATE EXACT SITING OF MOUNTING RACK WITH GOVERNMENT.

4. BRACE TOP OF RACK TO AN EXISTING ADJACENT STRUCTURE.

5. PROVIDE ELECTRICAL METALLIC CONDUIT FOR DDC CABLE FOR VERTICAL RUN FROM VFD TO ROOF

MECHANICAL SYSTEM SUPPORTS ABOVE. CONTRACTOR MAY TRANSITION TO CABLE WITHOUT

CONDUIT UPON REACHING SUPER STRUCTURE ABOVE PROVIDED CABLING IS SUPPORTED EVERY 5

FEET ON CENTER USING J-HOOKS OR EQUIVALENT CABLE SUPPORT SYSTEM.

6. CONTRACTOR MAY UTILIZE EXISTING MATERIALS FROM EXISTING ELECTRICAL DISCONNECT SWITCH UNISTRUT MOUNT PROVIDED MATERIAL AND HARDWARE IS NOT DAMAGED AND IS NOT CORRODED.

1,5

UNISTRUT

MOUNT

VFD WITH INTEGRATED

DISCONNECT

BASE PLATE WITH

ANCHORED FASTENERS

SUPPLY

FAN MOTOR

RETURN

FAN MOTOR

25 460

1760 28.8 CONTINUOUS 284T 1.15 YES

230/460 1745 25.2/12.6 CONTINUOUS 215TC 1.15 YES

UNIT MOTOR HP VOLTAGE MOTOR RPM AMPERAGE DUTY

RATING FRAME SIZE VFD RATED?SERVICE

FACTOR

FAN MOTOR SCHEDULE

PERFORM VIBRATION ANALYSIS ON NEW MOTORS FOLLOWING INSTALLATION. PERFORM ANALYSIS AT THREE SEPARATE VFD FREQUENCY SETPOINTS. PERFORM ANALYSIS AT 0° ON CASING, 90° ON CASING, AND IN-LINE WITH MOTOR SHAFT. REPORT RESULTS IN INCH-SEC AT THE PEAK VIBRATION FREQUENCY. CORRECT MOTOR INSTALLATION WHEN VIBRATION VELOCITY (PEAK) EXCEEDS 0.15

INCH-SEC.

FIN HEIGHT

(INCHES)

FIN LENGTH

(INCHES)

NUMBER OF

COILS

36 112 2

NOTE: DIMENSIONS PROVIDED ARE APPROXIMATE. CONTRACTOR SHALL VERIFY ALL DIMENSIONS PRIOR TO SELECTING COILS.

NOTES

1. FANS TO REMAIN.

2. REMOVE DUST AND DEBRIS FROM FAN BLADES AND CLEAN BLADES WITH A

CLEANING PRODUCT FORMULATED WITH ANTIMICROBIAL AGENTS.

3. BALANCE FANS SUBSEQUENT TO CLEANING.

NOTES

N .T

N S

15 4 3 2

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REVISION TABLE

SYM DESCRIPTION DATE APPR

PREFINAL DRAWING 7/22/21

C5 AHU-3 PHOTOGRAPH 1 C4 AHU-3 PHOTOGRAPH 2 C3 AHU-3 PHOTOGRAPH 3 C2 AHU-3 PHOTOGRAPH 4

B2 AHU-3 PHOTOGRAPH 8B3 AHU-3 PHOTOGRAPH 7B4 AHU-3 PHOTOGRAPH 6B5 AHU-3 PHOTOGRAPH 5

1. AIR HANDLING UNIT (AHU) 3.

2. ACCESS HATCH TO SUPPLY FAN AND DOWNSTREAM SIDE OF THE HEATING AND COOLING COIL. OPENING IS APPROXIMATELY 20-INCHES HIGH BY

24-INCHES WIDE.

3. SUPPLY AND RETURN PIPING FOR CHILLED AND HOT WATER SYSTEM. PIPING IS PROVIDED WITH A 1-INCH INSULATING JACKET. PHOTOGRAPH SHOWS PORTIONS OF THE MONITORING EQUIPMENT INCLUDING, BUT NOT LIMITED TO, PRESSURE GAUGES AND THERMOMETERS.

4. ACCESS PANEL TO FILTER COMPARTMENT AND UPSTREAM SIDE OF HEATING AND COOLING COIL. NOTE THAT THE COILS ARE OBSTRUCTED BY DAMPER

VANES ON THE UPSTREAM FACE.

5. SUPPLY AIR FAN MOTOR, ELECTRICAL DISCONNECT, AND BELT DRIVE ASSEMBLY. DRIVE ASSEMBLY CONSISTS OF A SAFETY GUARD, PULLEY BELT, TWO SHEAVES, AND ASSOCIATED SHAFTS WITH BEARINGS. NOTE THAT POWER IS TO RELOCATE TO NORTH FACE OF AHU (PICTURE LEFT).

6. RETURN AIR SHEAVE AND DRIVE BELTS (TWO) WITH SAFETY GUARD REMOVED.

7. RETURN AIR FAN HOUSING, MOTOR, AND DRIVE ASSEMBLY. DRIVE ASSEMBLY CONSISTS OF A SAFETY GUARD, PULLEY BELT, TWO SHEAVES, AND

ASSOCIATED SHAFTS WITH BEARINGS.

8. GLYCOL LOOP THREE-WAY MIXING VALVE WITH PNEUMATIC ACTUATOR. CHILLED WATER LOOP MIXING VALVE NOT PICTURED.

9. STACKED THERMAL EXCHANGE COILS. DIMENSIONS OF COMBINED COIL ASSEMBLY ARE APPROXIMATELY 72-INCHES HIGH BY 112-INCHES WIDE.

TYPICAL FOR BOTH HOT GLYCOL AND CHILLED WATER COILS.

10. DRAIN PAN AND HOSING.TYPICAL FOR EACH COIL.

11. VORTEX DAMPERS ON SUPPLY FAN WITH PNEUMATIC CONTROLS.

12. THERMAL EXCHANGE COIL MANIFOLD. TYPICAL FOR EACH COIL.

PHOTOGRAPH KEY NOTES:

8 7

ALL PHOTOGRAPHS ARE APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED.

A3 AHU-3 PHOTOGRAPH 11A4 AHU-3 PHOTOGRAPH 10A5 AHU-3 PHOTOGRAPH 9

File details come from the government source that posted it. Updated Sep 3, 2021.