ATTACHMENT I - SOW Replace HVAC Controls Bldgs 54 and 55 Tifton GA.pdf

United States Department of Agriculture Agricultural Research Service

Statement of Work

Replace HVAC Controls, Bldgs 54 and 55 2381 Rainwater Road

Tifton, GA 31793 Asset IDs: 660200B054, 660200B055

Prepared by:

Lee Willis 17 May 2021

Reviewed by:

Timothy Strickland 17 May 2021

Contents Location Map

Statement of Work:

Site Visit

Safety

Base Bid:

Contractor Responsibility

Material Submittals

Demolition Procedure:

Damage to Property

Inspection and Acceptance

Project Schedule

Work Hours

Project Contacts

Appendix:

Location Map

Site Address: 2381 Rainwater Road, Tifton, Georgia 31793

Statement of Work:

Contractor shall provide all materials, labor, and equipment to remove and replace the HVAC controls system installed in USDA Buildings 54 and 55 (Pesticide Lab) located at 2381 Rainwater Road, Tifton, GA 31793. Existing mechanical and control plans from the previous HVAC upgrade project are attached in appendix for reference.

Contractor must be registered in System for Award Management, (SAM), prior to submitting a bid.

Registration can be obtained through: https://www.beta.sam.gov

Site Visit:

Bidders are encouraged to visit the site and be escorted by a government representative to confirm locations, dimensions, and conditions of the project before a bid is submitted. The site visit shall be for the purpose of observing firsthand any conditions relevant to the completion of this project. No consideration will be given to claims based on lack of knowledge of existing conditions, except where contract documents make definite provisions for adjustment in cost or extension due to existing conditions not readily foreseeable.

Safety:

https://www.beta.sam.gov/

The contractor will submit a Site Safety Specific Plan/Accident Prevention Plan in industry recognizable format to the Contracting Officer (CO) within 7 days of contract award. The Plan shall include phone numbers and maps to the local doctor’s office and nearest hospital.

All employees of the general contractor or subcontractors shall have the 10-hour OSHA certified Construction Safety course and/or other relevant competency training. Supervisors shall have completed the 30-hour OSHA training.

Base Bid:

Provide all equipment, labor, and materials necessary (including dumpster/container if applicable) to:

• Provide components to support existing HVAC system which includes but is not limited to:

o Air Cooled Chiller (CH-1) - (Quantity of 1):

Provide Bacnet controller that includes Stop/Start control and status for alarming and interface to the chiller’s Bacnet module, if available.

Provide supply and return temp immersion sensors. The existing sensor shall be re-used.

Re-use bypass or isolation valve and differential pressure sensor, if installed.

Provide low voltage control wiring and open Bacnet communication trunk.

Provide programming and graphics.

Existing raceways and conduit from inside building to the chiller will be re-used.

o Air Handling Unit (AHU-1) - (Quantity of 1):

Provide Bacnet controller with I/O module and control panel that includes Stop/Start control and status for alarming.

Provide new 2.5” 3-way control valve assembly with NEMA 4 cover for outdoor installation.

Provide supply air (SA), mixed air, filter differential, and return air (RA) sensors.

Provide outside air (OA) and RA actuators for existing dampers. Dampers and linkage are existing.

Existing air flow monitoring station (AFMS) is to be re-used.

Provide NEMA 1 control panel installed indoors; re-use existing 120VAC to panel.

Provide low voltage control wiring and open Bacnet comm trunk.

Existing raceways and conduit from inside building to the AHU will be re-used.

o Electric Duct Heaters (EH-1, EH-2, EH-3) – (Quantity of 3):

• Provide DDC controller/actuator, supply air sensor and room sensor for each unit.

Re-use wall rough-ins.

• Provide control for SCR heat.

• Provide low voltage control wiring and open Bacnet communication trunk.

• Provide programming and graphics.

o Air Terminal Units (ATU-1, ATU-2, ATU-3, ATU-4, ATU-5) - (Quantity of 5):

Provide DDC controller and actuator, supply air sensor and room sensor for each unit. Re-use wall rough-ins.

Provide control for 3-stage heat.

Provide low voltage control wiring and open Bacnet communication trunk.

o Phoenix Air Supply/Exhaust Valves (AV-1 thru AV-12) - (Quantity of 12):

Integrate to the existing Phoenix Lab Main Controller.

Existing lab valves and sensors will remain.

Provide equipment graphics for each valve.

If any lab valves or components are found to be defective, contractor shall generate a deficiency list for USDA to modify contractor for replacement.

o Exhaust Fans (EF-1, EF-2, EF-3, EF-4, EF-5) - (Quantity of 5):

Provide Start/Stop and fan status for each fan.

EF-2 thru EF-5 are equipped with VFD. Contractor shall interface to each VFD for Start/Stop control and status.

Provide low voltage control wiring and open Bacnet communication trunk.

• Additionally:

o Contractor shall provide full color graphics package accessible via web browser for each piece of equipment. All new equipment programming and graphics shall reside on this platform.

o Contractor shall utilize USDA’s existing server or virtual machine to host the Web GUI supervisor software.

o Contractor shall provide start-up and testing of system.

o All low voltage control wiring above lay-in ceilings and inside sheetrock walls shall be installed as plenum cable not in conduit. All control wiring and communication wiring in mechanical rooms shall be installed in conduit.

o Contractor shall provide complete engineered submittals and as-built documentation.

o Contractor shall provide one (1) year warranty for all work and products from date of substantial completion.

o Provide up to 8 hours of onsite training to government personnel.

o Contractor shall provide quote as a turn-key project.

Contractor Responsibility:

1. Contractor shall verify all dimensions and site conditions prior to beginning work.

2. Contractor shall perform the work as listed in the above outlined Base Bid.

3. Contractor shall keep work area clean daily and take measures to control debris while work is being performed.

4. Contractor is required to manage the project and consult with the Government prior to beginning all work phases and to work in a manner that minimizes the impact of the work on Government operations, research, and functions.

5. Contractor must always have a Site Supervisor on the job while working on this project.

6. Contractor will provide their own restroom facility and dumpster.

7. Contractor will remove all demolished material and debris from the worksite and dispose off-site.

8. The Contractor shall confine all operations on Government premises to areas authorized or approved by the CO or Contracting Officer Representative (COR).

9. Employees of general contractor and subcontractors shall comply with ARS security management program, obtain permission from the CO/COR, be identified by project and employer by wearing contractor issued identification badges (if required) at all times on ARS property, and restricted from unauthorized access.

10. Work shall be accomplished in accordance with all local, state and federal codes and regulations.

Material Submittals:

The Contractor shall supply all materials necessary to successfully complete the project and deliver a functioning system as required. Submittals on all material incorporated into the work, including shop drawings and specifications, used on this project shall be submitted electronically to the CO and COR for review and approval prior to purchasing materials.

Demolition Procedure:

1. The contractor shall always be responsible for protecting their work and ensuring the safety of their crew and ARS employees. Upon completion of the project, the contractor shall remove from the premises all accumulated materials and rubbish caused by the project. Premises shall be left in a clean, orderly, and acceptable condition.

2. All items demolished shall become property of the Contractor and be removed by Contractor from ARS property.

3. Recyclable materials shall be recycled, and the savings shall be included in the contractor’s quote, therefore passed on to the government.

4. Contractor shall be responsible for providing disposal records where applicable.

Damage to Property:

Any damage to the Government buildings, utilities, etc. caused as the result of the contractor’s activities shall be repaired or replaced to the satisfaction of the Government at Contractor’s expense.

Inspection and Acceptance:

A government representative shall inspect and approve the work performed on this project. The Contractor shall schedule final inspection a minimum of two (2) days in advance with the COR.

Project Schedule:

The completion of this project shall not exceed 90 days from date of Notice to Proceed. A request for time extension must be submitted to the CO in writing. Each request must include specific and detailed reasons in support of the schedule alteration.

Work Hours:

Contractor’s working hours shall be scheduled to coincide with the working hours of the Tifton location which are 8 a.m. to 4:30 p.m. Should it be necessary to work hours other than the regular working hours, the contractor shall arrange for access to the area with the CO and COR two (2) days prior to the need.

Project Contacts:

Administrative Officer (AO):

TBA

Research Leader (RL):

Contracting Officer Representative (COR):

Engineering Project Manager (EPM):

Contracting Officer:

TBD

Appendix:

Mechanical and Controls Plans, Bldg 54-55

VENTURI BALANCINGr-

C

'fl==:f.i

= = 1i;:== =

,M001 'NOT TO

MECHANICAL SPECIFICATIONS

1. FUME HOOD EXHAUST DUCTS SHALL BE FABRICATED FROM TYPE

304 STAINLESS STEEL ANO JOINTS SHALL BE WELDED LIQUID

TIGHT.

2. SUPPLY, RETURN, ANO GENERAL EXHAUST DUCTWORK SHALL BE

FABRICATED FROM G90 GALVANIZED SHEET STEEL.

3. ALL DUCT SHALL BE SEALED WITH A MASTIC SUITABLE FOR THE

PRESSURE CLASSIFICATION IN ACCORDANCE WITH SMACNA "HVAC

DUCT CONSTRUCTION STANDARDS".

MECHANICAL LEGEND

181 SUPPLY AIR DUCT

IZI ----- RETURN AIR DUCT OR EXHAUST DUCT

DUCT TRANSITION

-----X,.DIFFUSER TYPE/ Y=THROW

XY

z

1. REFER TO ELECTRICAL PLANS FOR POWER CONNECTIONS.

2. ALL UNITS SHALL BE DOUBLE WALL CONSTRUCTION.

3. FAN STATIC PRESSURE SHALL BE SELECTED WITH A MIO-LIFE FILTER PRESSURE DROP (0.75 INWG).

4. ALL SUPPLY ANO RETURN AIR DUCTS LOCATED WITHIN THE

BUILDING'S THERMAL ENVELOPE SHALL BE INSULATED WITH 2"

THICK, 0.75 PCF DENSITY, BLANKET TYPE FIBERGLASS INSULATION

WITH VAPOR BARRIER ANO MINIMUM R-VALUE OF 6.7.

5. ALL SUPPLY ANO RETURN AIR DUCTS LOCATED OUTSIDE THE

• .I. '

Z=AIRFLOW, CFM

MD MANUAL DAMPER

TURNING VANES

1. REFER TO ELECTRICAL PLANS FOR POWER CONNECTIONS.

1. CEILING DIFFUSERS SHALL BE ALUMINUM LOUVERED FACE TYPE WITH WIHITE FINISH.

PROVIDE THROW AS INDICATED ON DRAWING.

2. EGGCRATE GRILLES SHALL BE ALL ALUMINUM CONSTRUCTION WITH ½" SQUARE

EGGCRATE LOUVERS, 1" DEEP, WITH WHITE FINISH

BUILDING'S THERMAL ENVELOPE SHALL BE INSULATED WITH 2"

THICK, 1.5 PCF DENSITY, BLANKET TYPE FIBERGLASS INSULATION

WITH VAPOR BARRIER ANO MINIMUM R-VALUE OF 8.0.

6. ALL DUCTWORK EXPOSED OUTSIDE SHALL BE INSULATED WITH

RIGID INSULATION (MIN R-VALUE OF 8.0) ANO COMPLETELY

COATED WITH WEATHERPROOF MASTIC COATING SUITABLE FOR

METAL DUCTWORK AND THERMAL INSULATION. THE COATING SHALL

HAVE A WHITE COLOR WITH SERVICE TEMPERATURE RANGE OF

-20• TO 180"F, NONFLAMMABLE WHEN WET, MAXIMUM FLAME

SPREAD RATING OF 15, SMOKE DEVELOPED RATING OF ZERO.

7. ALL CHILLED WATER PIPING SHALL BE INSULATED WITH 1.5 INCH

THICK CELLULAR GLASS INSULATION. CHILLED WATER STORAGE

TANK ANO EXPANSION TANK SHALL BE INSULATED WITH 2 INCH

THICK CELLULAR GLASS INSULATION. JACKETING FOR OUTDOOR

APPLICATIONS SHALL BE .016 INCH ALUMINUM. INSULATION ON

VALVES, ELBOWS ANO FITTINGS SHALL BE PRE-FORMED CELLULAR

GLASS.

8. ALL CHILLED WATER PIPING, TANKS ANO ACCESSORIES SHALL BE

COVERED WITH HEAT TRACE TAPE FOR FREEZE PROTECTION.

FREEZE PROTECTION TAPE SHALL BE PROVIDED FOR ALL ABOVE

GROUND WATER PIPING OUTSIDE THE BUILDING AND SELECTED TO

MATCH PIPE SIZE, INSULATION THICKNESS, ANO O DEGREE F

AMBIENT TEMPERATURE IN ACCORDANCE WITH THE

MANUFACTURER'S INSTRUCTIONS. TAPE SHALL MAINTAIN 40

DEGREES F MINIMUM WATER TEMPERATURE AND SHALL BE SELF

REGULATING TYPE.

rrr, FLEXIBLE DUCT CONNECTION

THERMOSTAT/TEMPERATURE SENSOR

[fil DUCT SMOKE DETECTOR

AHU AIR HANDLING UNIT

ATU AIR TERMINAL UNIT

CH CHILLER

p PUMP vso W,RIABLE SPEED DRIVE

EH ELECTRIC HEATER

EF EXHAUST FAN

SF SUPPLY FAN

AFMS AIR FLOW MEASURING STATION

2. MAXIMUM STATIC PRESSURE DROP SHALL BE RATED AT MAXIMUM CFM FOR THE AIR VALVE ANO COIL

9. AIRFLOW MEASURING STATION SHALL BE A RUSKIN EAMS

ELECTRONIC AIR MEASURING STATION OR APPROVE EQUAL

AMFS DIA DIAMETER

3. ELECTRIC HEATERS SHALL INCLUDE BOTH A MANUAL ANO AUTOMATIC RESET SAFETY CUTOUT SWITCH. PROVIDE AN AIRFLOW SWITCH

AND A BUILT-IN POWER DISCONNECT SWITCH INTERLOCKED WITH THE ACCESS DOOR. PROVIDE BUILT-IN CONTROL VOLTAGE

TRANSFORMER.

LABORATORY AIRFLOW CONTROL VALVES

AIRFLOW

EXT.

FAN SCHEDULE

MAXIMUM

MAX.

SHALL HAVE A 3% ACCURACY BETWEEN 100 FPM ANO 2000 FPM

ANO SHALL HAVE A DAMPER WITH ACTUATOR TO MAINTAIN THE

DESIRED RETURN AIR FLOW RATE.

OA OUTSIDE AIR

UG UNDERGROUND

W/ WITH

AFF ABOVE FINISH FLOOR

SERVICE

HOOD EXHAUST

LAB 13

GENERAL EXHAUST

LAB 14

HOOD EXHAUST

REMARKS

PHONIX CONTROLS

ACCELL II

PHONIX CONTROLS

ACCELL II

PHONIX CONTROLS

ITEM

EF-1

EF-2 & 3

EF-4 & 5

CFM

2,470

1,250

STATIC

IN. WG

0.3

4.0

4.0

TYPE

ROOF MOUNTED CENTRIFUGAL

DIRECT DRIVE

FIBERGLASS BACKWARD

CURVED CENTRIFUGAL

FIBERGLASS BACKWARD

CURVED CENTRIFUGAL

SONE

RATING

5.0

MOTOR

HP

1/30

1.5

DISCONNECT SWITCH

SOLID STATE SPEED CONTROL

HARTZELL MODEL 41

ARRANGEMENT 10, VERTICAL DISCHARGE

HARTZELL MODEL 41

ARRANGEMENT 10, VERTICAL DISCHARGE

WATER COIL

AIR

VENT

PRESSURE/TEMPERATIJRE

TEST PLUG (lYP)

IL • 3-WAY MODULATING

11 '1 1-.-'1.'\--, CONTROL VALVE

I

VALVE (TYP)

_j w

HOOD EXHAUST

LAB 13

GENERAL EXHAUST

PHONIX CONTROLS

ACCELL II

PHONIX CONTROLS

1. REFER TO ELECTRICAL PLANS FOR POWER CONNECTIONS.

2. EF-2, 3, 4, & 5 SHALL BE CONTROLLED BY A VFO.

UNION (lYP) 1 r:::

LAB 13

HOOD EXHAUST

LAB 14

SUPPLY AIR

LAB 13

SUPPLY AIR

LAB 14

SUPPLY AIR

LAB 15

GENERAL EXHAUST

ACCELL II

PHONIX CONTROLS

ACCELL II

PHONIX CONTROLS

ACCELL II

PHONIX CONTROLS

ACCELL II

PHONIX CONTROLS

PHONIX CONTROLS

1. REFER TO ELECTRICAL PLANS FOR POWER CONNECTIONS. 2. PROVIDE CHILLER WITH FACTORY MOUNTED GFI CONVENIENCE OUTLET, SINGLE 3HP PUMP, STRAINER W/BLOWDOWN VALVE. EXPANSION

Y-STRAINER WITH HOSE END

DRAIN VALVE ANO CAP

SHUTOFF VALVE

(lYP)

LAB 15

HOOD EXHAUST

LAB 15

HOOD EXHAUST

ACCELL II

PHONIX CONTROLS

ACCELL II

PHONIX CONTROLS

TANK, PRESSURE GAUGES, DRAIN & VENT PLUGS, FLOW SWITCH, ANO BALANCING VALVE.

3. PROVED CHILLER WITH FACTORY INSTALLED MINIMUM LOAD CONTROL THAT ALLOWS UNIT TO OPERATE DOWN TO A MINIMUM OF 15%

CAPACITY.

I 1 'AHU CHILLED WATER COIL PIPING DETAIL

MOO 1 NOT TO SCALE

I

<C

LAB 15 ACCELL II MANUAL DAMPER

W/2" STANDOFF SUPPLY DUCT RETURN DUCT "' 1. REFER TO ELECTRICAL PLANS FOR POWER CONNECTIONS.

ELECTRIC DUCT HEATER SCHEDULE

DUCT WRAP (TYP)

HANGER ROOS OR

STRAPS UP TO

STRUCTURE

ROUND METAL

r-.¢::u.. ,p.::,;;::s:::::s- r

NYLON CLAMP - ._.,,.-1 )

(TYP) --

I

DUCT WRAP (TYP) ---':t====

REVISJON , DATE

AIRFLOW AIR P.O. DUCT CAPACITY AIR AIR AIR TERMINAL UNIT SUPPLY DUCT DUCT WRAP (TYP)

> ---- PREINSULATED

FLEX. DUCT

NYLON CLAMP (TYP) _// I

PREINSULATEO------------------►1/

' ) FLEX. DUCT

ROUND METAL DUCT

SAME SIZE AS ATU

CONNECTION (MINIMUM

OF 2 DIAMETERS LONG)

ROUND METAL BRANCH DUCT

SAME SIZE AS ATU CONNECTION

UNLESS NOTED OTHERWISE

'> '> -------- SQUARE TO

ROUND TRANSITION

--t

IJ "

fu- &'" / _Ji J.I _J,\_ = J

LAY-IN DIFFUSER

RETURN ------------------ n

AIR BOX

PAINT INTERIOR

FLAT BLACK

LAY-IN EGGCRATE

i

JOB NO.

20081071

DATE

11/19/08

DESIGN

TAM

1. DUCT HEATERS SHALL BE THE OPEN COIL TYPE. THE FRAME SHALL BE THE INSERT TYPE ANO THE FRAME ANO CONTROL BOX SHALL BE CONSTRUCTED OF ALUMINIZEO STEEL. THE CONTROL BOX SHALL BE OUST TIGHT CONSTRUCTION WITH A HINGED ACCESS DOOR. HEATERS SHALL BE UL LISTED FOR ZERO CLEARANCE TO COMBUSTIBLE MATERIALS. THE ELEMENTS SHALL BE CONSTRUCTED OF 80% NICKEL, 20% CHROMIUM COILED RESISTANCE WIRE. CONTROLS SHALL INCLUDE AUTOMATIC RESET ANO MANUAL RESET DISC TYPE THERMAL CUTOUTS.

NOTE:

1. COORDINATE THE LOCATION OF ALL ATU'S TO ENSURE THAT PROPER CLEARANCES ARE MAINTAINED.

GRILLE

NOTE: INSTALL NYLON CLAMPS ON INNER FLEX DUCT LINER AND OUTER JACKET.

REVIEW

RTS

PROVIDE A PRESSURE DIFFERENTIAL SWITCH IN THE HEATER TO PREVENT OPERATION WITH INADEQUATE AIR FLOW. M001

2. REFER TO ELECTRICAL PLANS FOR POWER CONNECTIONS. r 2 '',SINGLE DUCT ATU INSTALLATION DETAIL 001 NOT TO SCALE t-3-',-T-YtPI-C-A-L -D-I-F-FU-S-E-R-/-GR-IL-LE--I-NS-T-A-L-LA-T-IO-N--D-E-TA-I-L iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii--iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiimiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiil

DUC

OUTDOOR R HANDLING UNIT SCHEDULE

CFM

EXTERNAL COOLING CAPACITY

STATIC 1------,---- ----,-----,--E-N_T_E_R_IN_G_A_IR---r---LEA_V_IN_G_A,-IR-...,...,..---C-H-IL-L-ED_W_A_T_E_R --------

PRESS. MAX. F.V. COIL P.D. TOTAL SENS.

ELECTRIC

HEATER

kW

MAX.

MOTOR

HP

FILTER

THICKNESS/

EFFICIENCY

TOTAL O.A.

IN. WG FPM IN. WG MBH MBH DB °F WB °F DB ·F WB ·F GPM IN °F OUT °F P.D. FT.

AHU-1

3.5

0.5

241 91.9

77.9

55.6

55.0

16 40

4"/

MERV 7

SCR HEATER CONTOL

AIR TERMINAL UNIT SCHEDULE

PRIMARY

MAX./MIN.

HEATING

MAXIMUM

S.P. DROP

IN. WG

HEATING CAPACITY

REMARKS CAPACITY

KW

ENTERING

AIR °F

LEAVING

AIR °F

HEATING

STAGES

ATU-1

1200/480

6.0

SINGLE DUCT

MAX. N.C.=30

ATU-2

350/140

2.0

ATU-3

320/135

ATU-4

220/110

1.5

55 98

ATU-5

320/140

AIR DISTRIBUTION SCHEDULE

DESIGNATION

DESCRIPTION

A 6"x6" NECK CEILING DIFFUSER, 2'x2' LAY-IN PANEL

B 9"x9" NECK CEILING DIFFUSER, 2'x2' LAY-IN PANEL

C 12"x12" NECK CEILING DIFFUSER, 2'x2' LAY-IN PANEL

0 15"x15" NECK CEILING DIFFUSER, 2'x2' LAY-IN PANEL

E 1'x2' EGGCRATE CEILING GRILLE, LAY-IN FRAME

G 1'x1' EGGCRATE CEILING GRILLE, FLANGED FRAME

H 12"x12" NECK CEILING DIFFUSER, FLANGED FRAME

AIR-COOLED CHILLER SCHEDULE

CAPACITY

TONS

MAX.

COMP.

KW

CHILLED WATER

COND.

AIR °F

GPM IN .F OUT •F P.D. FT.

CH-1

38 83

56 44

95 YORK MODEL YCAL0043EE28 W/

HYDRONIC KIT

MAX

AIRFLOW

CFM

MIN

AV-1

AV-2

AV-3

AV-4

AV-5

AV-6

AV-7

AV-8 550

AV-9

AV-10

AV-11

AV-12

ITEM CFM IN. WG SIZE kW IN °F OUT °F REMARKS

EH-1

0.2 16"9)

11.0

SCR CONTROL

EH-2

0.2

12"9>

5.0

EH-3

0.2

18"x1O"

8.0

HOOD H-6

HOOD H-J

SPACE

-l_L-= 8-J n f3

I.I..-

=-s

I SPACE I SPACE I SPACE >

j

I 0

T

T 7 I z

AHU RETURN

EH SPACE SEQUENCE OF CONTROLS

AIR MONITORING

STATION

f----7---1---8--7

AV

----------- I : C HWS

: I I I I

E f--

- J f+l I

. ------ --. I I

PHOENIX J

CONTROLLER

[!] rp I I I I

I I M I

VARIABLE AIR VOLUME AHU:

WHEN THE AHU IS IN THE OCCUPIED MODE, THE SUPPLY FAN WILL OPERATE

CONTINUOUSLY, THE OUTSIDE AIR AND RETURN AIR DAMPERS WILL MODULATE TO

PROVIDE A FIXED OUTSIDE AIR CFM, AND THE VARIABLE FREQUENCY DRIVE WILL

MODULATE TO MAINTAIN A DUCT STATIC PRESSURE OF +2.0 ·we. THE AHU Will BE SHUT DOWN AND ALARMED DUE TO THE FOLLOWING SAFETIES: SMOKE DETECTOR. FREEZESTAT, FAN MOTOR FAILURE, VSD FAILURE, AND STATIC PRESSURE HIGH LIMIT.

CHILLED WATER SYSTEM:

THE CHILLED WATER SYSTEM SHALL BE ENABLED BY THE EMCS. THE CHILLER AND

PUMP SHALL RUN WHENEVER THERE IS A CALL FOR COOLING FROM THE AHU. THE

CHILLER INTEGRAL CONTROL PANEL SHALL CONTROL THE CHILLER OPERATION TO

MAINTAIN A CONSTANT 44 DEGREES F LEAVING WATER TEMPERATURE. IF THE PUMP

FAILS, AN ALARM Will BE GENERATED AND THE CHILLER WILL SHUT DOWN. CHILLER ALARMS WILL BE MONITORED BY THE EMCS.

r-r -T---,,-,- I I I CHWR I ---I I I M I

THE EMCS WILL REMOTELY MONITOR AND ADJUST THE SYSTEM STATIC PRESSURE

SETPOINT. THE EMCS WILL REMOTELY MONITOR AND ADJUST THE VSD ANO FAN MOTOR. THE EMCS WILL PROVIDE A START/STOP SIGNAL TO THE VSD.

GENERAL EXHAUST FANS:

I tn771 I I I I l I I L--T-

WHENEVER THE AHU IS "ON", THE CHILLED WATER VALVE AND THE ELECTRIC HEATER

EXHAUST FAN EF-1 SHALL RUN CONTINUOUSLY DURING OCCUPIED HOURS AND SHALL

BE OFF DURING UNOCCUPIED HOURS.

OUTSIDE

AIR

FILTER

MIXING

BOX

I I [I] I [I] [I] _..+----, ' I

[e]

AHU

SUPPLY

WILL MODULATE TO MAINTAIN THE SPECIFIED COOLING COIL DISCHARGE AIR

TEMPERATURE. THE CHILLED WATER VALVE WILL BE CLOSED IF THE AHU IS "OFF".

THE WATER VALVE ACTUATORS WILL BE ELECTRONIC. THE EMCS WILL PROVIDE

REMOTE MONITORING, ALARM AND SETPOINT ADJUSTMENT FOR THE COIL DISCHARGE

AIR TEMPERATURES. REMOTE MONITORING AND ALARMS SHALL BE PROVIDED FOR

MIXED AIR LOW LIMIT, WATER VALVE POSITION, OUTSIDE AIR CFM, AND FILTER

PRESSURE DROP.

THE EMCS SHALL MODULATE THE RETURN AIR FLOW TO MAINTAIN POSITIVE PRESSURE

LAB EXHAUST FANS (EF-2, EF-3, EF-4 & EF-5)

THE LAB EXHAUST FANS SHALL BE VARIABLE VOLUME CONTROLLED BY STATIC

PRESSURE CONTROLLERS LOCATED IN EACH EXHAUST DUCTWORK SYSTEM. STATIC

PRESSURE SENSORS SHALL BE SUITABLE FOR USE IN CORROSIVE AIR STREAMS. THE

STATIC PRESSURE SENSORS ANO CONTROLLERS WILL BE SET TO MAINTAIN A NEGATIVE

-2.0 INWC. PRESSURE. AS THE PRESSURE IN THE DUCT SYSTEM RISES INDICATED BY

AN EXHAUST AIR VALVE OPENING THE CONTROLLER WILL SPEED UP THE VFD TO

PREHEAT

COIL

COOLING

COIL

LJ------- ------------------

IN THE BUILDING AND NEGATIVE PRESSURE IN THE LABS. THE REQUIRED RETURN AIR

FLOW RATE Will BE CALCULATED BY SUMMING THE AIRFLOWS FOR ATU-1, 2, 3, 4, AND 5 AND SUBTRACT 900 CFM FROM THAT VALUE. THIS CALCULATED VALUE WILL

BE THE REQUIRED RETURN AIR FLOW RATE. THE EMCS WILL COMPARE THE

CALCULATED RETURN AIR FLOW RATE TO THE ACTUAL RETURN AIR FLOW RATE

MEASURED BY THE RETURN AIR FLOW MEASURING STATION ANO WILL MODULATE THE

RETURN AND OUTSIDE AIR DAMPERS IN MAINTAIN THE REQUIRED RETURN AIR FLOW

MAINTAIN THE -2.0 INWC. AS THE EXHAUST VALVES CLOSE OFF AND THE PRESSURE

GOES MORE NEGATIVE IN THE DUCT SYSTEM, THE CONTROLLER WILL SLOW DOWN THE

VFO TO MAINTAIN -2.0 INWC. IN THE EVENT THE PRESSURE APPROACHES 0.00 INWC.

INDICATING A FAN FAILURE OR A FAN BEING TURNED OFF, THE CONTROLLER SHALL

START THE BACK-UP EXHAUST FAN.

1 VARIABLE AIR VOLUME AHU FLOW DIAGRAM RATE.

CHILLER CH-I

T ---7 F ---

I I I I I

M002 NOT TO SCALE

AHU-1

CONTROLS LEGEND

[!] TEMPERATURE SENSOR

[e] PRESSURE SENSOR

[El FLOW SWITCH

[ID CURRENT SWITCH

[g] ELECTRIC HEAT CONTROLLER

SMOKE DETECTOR (DIV. 16000)

AIR TERMINAL UNITS:

WHEN THE SPACE TEMPERATURE IS ABOVE THE COOLING SETPOINT, THE ELECTRIC

HEAT WILL BE OFF AND THE AIR VALVE WILL MODULATE TO MAINTAIN SPACE

TEMPERATURE. WHEN THE SPACE TEMPERATURE IS AT OR BELOW THE COOLING

SETPOINT, THE AIR VALVE WILL REMAIN AT THE MINIMUM SCHEDULED AIRFLOW. WHEN

THE SPACE TEMPERATURE FALLS BELOW THE HEATING SETPOINT, THE ATU ELECTRIC

HEAT WILL STAGE TO MAINTAIN SPACE TEMPERATURE. THE AIR VALVE ACTUATOR AND

ELECTRIC HEAT ACTUATOR WILL BE ANALOG ELECTRONIC. THE DOC CONTROLLER WILL

HAVE AN ON-BOARD DIFFERENTIAL PRESSURE TRANSDUCER FOR MONITORING AIR

FLOW RATE.

I t

E;J--·m@ E;J--,IDQ z I r Mil-4b---J

- ---7-------------B ------------ L l0 MOTORIZED ACTUATOR

I I p=J FLOW METERING STATION

I I I I I I I I I I I-

T - - - ---l I

: CHILLED WATER

MAKEUP WATER _ cX TRIPLE DUTY VALVE

I I I I I I I

<C mt-

1 PUMP P-1

AIR SCOOP

CONTROL VALVE r JI

_JI

I I --l---------- -----T ------------ 7 (/)

INSTALL AIR SCOOP IN CHILLED WATER

RETURN PIPE AS HIGH AS POSSIBLE

'---- --------, ------- $P, EXHAUST AIR :

I cwW>< a<:(::

I -z (..'.)

2 CHILLED WATER SYSTEM FLOW DIAGRAM

M002 NOT TO SCALE

EXPANSION

TANK

1---------- 1----------

LAB 14

A'L=2. r-·

L-------

LAB 15

AV-10 r - .

AY-12 -------

AY-11

I 0..-.. <C <( I I- ..J I a.. <(

_J

I n. ..J 0 a::: I- I L- .... , I I I L- ..., I I I w

I t- <C z z

I I I I

PRESSURE/TEMPERATURE

I

TEST PLUG (TYPICAL) I

I I

I I I I I I

I I I I I I I I I I I I I I ! I ccn t- 0 t- _J

(!) 0 0- D... <C <(

I

PHOENIX

CONTROLLER

----rp

HOOD H-1

HOOD H-2

PHOENIX

CONTROLLER

----rp 1

PHOENIX

CONTROLLER

----rp

HOOD H-4

J_

HOOD H-5

I OD: 0w

I <CO

I I :I: (!)

I

--L· ---------------------- --------------+------------------ I I I I I I I I I I I I I I

I <C I I LI tH .E.t1::.1 I I I I I C

CHECK VALVE (TYP)

SHUTOFF VALVE (TYP)

I ='--,-1

II

AV-7

L _

I I L - E ......,_...,I .El:i=.2.

I I

1 AV-8

L _

I L------ Ell I El::6i =L..., I

I I AV-9

L _

I :e:,n I I I

I REVJSION DATE

FLEXIBLE PIPE (TYP)

FAN 1 t-t- - - - - - -'- - - - - - - - - - - -- - - - - - - - - - - - - - - - - - ..l-- - - - - - - - - - - - - - - - -

SUPPLY AIR

I I

II

1- lI- - - - --' '-- - - - -,l, I I I

CONCRETE PAD

FLOW SWITCH

--------, -------------------------- r:::::l :

M I i.::::.r

J

JOB NO.

20081071

DATE 11 19 08

TRIPLE DUTY VALVE ---1- :i------iI'r : 11

;l ---------------,;;:::;;-;;;;;-;,;; ------------------------------------------------------------------------------------- 5·J

RETURN AIR

DESIGN

TAM

NOTE:

PIPING LOCATED OUTSIDE SHALL BE WRAPPED WITH

HEAT TRACE TAPE, INSULATION AND METAL JACKETS.

AIR MONITORING

STATION

REVIEW

RTS

4 AIR-COOLED CHlLLER PIPING DETAIL

M002 NOT TO SCALE

3 OA EA CONTROL SCHEMATIC

M002 NOT TO SCALE M002

EXHAUST AIR

AT

I

I

I

I

I