Appendix A 100 percent Drawings Sealed.pdf

Project Name:

Issue Date: APRIL 27, 2021

Contract No.: TBD

Project No.: 549-20-700

Project Address: 1201 E. 9TH STREET

BONHAM, TEXAS 75418

100% ISSUE FOR BID

PROJECT

LOCATION

VICINITY MAP

U.S. DEPARTMENT OF

VETERAN AFFAIRS

SAM RAYBURN MEMORIAL VETERANS

CENTER

KP

TRUE

NORTH

KEY PLAN

SCALE: NTS

CENTRAL

ENERGY

PLANT (CEP)

EAST 9TH ST.

L Y N

N

S T

SAM

RAYBURN

MEMORIAL

G-001

COVER SHEET / SHEET INDEX

JL JM

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMP

321 4 5 6 7 8 9 10

REPLACE CHILLERS AT

ENERGY CENTER

BONHAM, TEXAS

Project Director

Revisions:

549-20-700

Approved: Project Director2340 E. TRIN ITY MILLS, STE. 220

CARROLLTON, TX 75006

972-233-2288

O'Brien Engineering, Inc.

Mr. Byron Rowland, COR Sam Rayburn Memorial Veterans Center Bonham, TX 75418

TEXAS P.E. NO. 92399

JAMES E. LYLES, JR.

INTERIM REVIEW AND ARE NOT

INTENDED FOR CONSTRUCTION,

BIDDING, OR PERMIT PURPOSES.

DATE: 12 APRIL 2021

THESE DOCUMENTS ARE FOR

www.obrieneng.com

TEXAS ENGINEERING FIRM F-3758

ISSUE FOR BIDCONSULTANT

Revisions: Date:

FULLY SPRINKLERED

04.27.2021

EXISTING PIPING

DOMESTIC COLD WATER

FD

PIPE SLOPE

ANCHOR

STRAINER

FLOOR DRAIN

THERMOMETER

THERMOWELL

MAKE-UP WATER

PRESSURE GAUGE & COCK

PRESSURE GAUGE

DOMESTIC HOT WATER

DOMESTIC HOT WATER RETURN

DIRECTION OF FLOW

PIPING LEGEND

(NOT ALL SYMBOLS ARE NECESSARILY USED)

CHILLED WATER RETURN

CHILLED WATER SUPPLY

HOT WATER HEATING RETURN

HOT WATER HEATING SUPPLY

CONDENSER WATER RETURN

CONDENSER WATER SUPPLY

MANUAL AIR VENT

SAFETY VALVE OR PRESSURE RELIEF

PRESSURE REGULATOR

CHR

CHS

HWR

HWS

REFRIGERANT LIQUID

REFRIGERANT SUCTION

LOW PRESSURE STEAM (15 PSIG & BELOW)

LOW PRESSURE STEAM CONDENSATE RETURN

RL

RS

LPS

CR

CWR

CWS

UNION

BALL VALVE

FLOW MEASURING DEVICE

PIPE FLANGE

FM

THREE-WAY CONTROL VALVE

COMBINATION BALANCE & STOP VALVE

CHECK VALVE

BUTTERFLY VALVE

GLOBE VALVE

GATE VALVE

SD

DUCT SMOKE DETECTOR

CFMTYPE

EXHAUST AIR DEVICE

A

DIFFUSER OR GRILLE DESIGNATION

CONDENSATE DRAIN

CD

M

FD

MOTORIZED CONTROL DAMPER

ITEM TO BE REMOVED

MECHANICAL LEGEND

DEMOLISH

T

RETURN AIR DEVICE

FIRE DAMPER

SUPPLY DIFFUSER

FLEXIBLE DUCTWORK

VOLUME DAMPER

F/SD

FIRE/SMOKE DAMPER

CONDENSATE RETURN UNIT CRU

ELBOW

DOWN DN

T

TEMPERATURE SENSOR MOUNTED ABOVE CEILING

ADJACENT TO RETURN OR EXHAUST GRILLE

TEMPERATURE SENSOR (MOUNT 48" ABOVE

FLOOR WHERE NOT SHOWN ABOVE CEILING)

CFM

S

SMOKE DETECTOR

POINT OF CONNECTION

TO EXISTING

INTAKE AIR FLOW

DISCHARGE AIR FLOW

RECTANGULAR ELBOW W/ TURNING VANES

DUCTWORK

EXISTING TO REMAIN

(NOT ALL SYMBOLS ARE NECESSARILY USED)

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

13.

COMPLETED INSTALLATIONS SHALL CONFORM TO ALL APPLICABLE FEDERAL CODES,

STATE AND LOCAL ORDINANCES AND THE SPECIFICATIONS. IF ANY CONFLICTS OCCUR, THE

MOST STRINGENT SHALL APPLY.

PIPING AND DUCT LAYOUT IS ONLY SCHEMATIC, EXACT LOCATION OF PIPES AND DUCTS

SHALL BE COORDINATED WITH BLDG. STRUCTURE, AND WORK OF OTHER CONTRACTORS

PRIOR TO START OF ANY CONSTRUCTION OR DEMOLITION.

EXISTING WORK SHOWN ON PLANS IS FROM PREVIOUS ENGINEERING DOCUMENTS AND

FIELD OBSERVATION. ACTUAL CONDITIONS MAY VARY, AND CONTRACTOR MUST FIELD

VERIFY EXISTING WORK. MAKE MINOR ADJUSTMENTS NECESSARY TO COMPLETE WORK. IF

EXISTING CONDITIONS PROHIBIT WORK, NOTIFY THE ARCHITECT FOR REDIRECTION AS

REQUIRED. CONTRACTOR SHALL FIELD VERIFY THAT THE EXISTING DUCTWORK IS

ADEQUATE FOR NO MORE THAN 0.30" W.C. OF STATIC PRESSURE PER 100 FEET FOR

MEDIUM PRESSURE DUCTWORK BASED ON THE CFM'S INDICATED ON THE PLANS AND THAT

THE EXISITNG DIFFUSER NECK SIZES MEET THE REQUIREMENTS AS INDICATED FOR NEW

DIFFUSERS. REPORT ANY DISCREPANCIES TO THE COR OR DESIGN ENGINEER FOR

RESOLUTION.

THE CONTRACTOR IS RESPONSIBLE FOR ALL WARRANTIES

ON THE EQUIPMENT INSTALLED.

ENSURE THE EXECUTION OF ALL WARRANTIES FOR EQUIPMENT AND INSTALLATION AS

PRESCRIBED BY THE OWNER.

ALL DUCTS AND PIPES ARE ABOVE CEILING AND TIGHT TO BOTTOM OF STRUCTURE UNLESS

OTHERWISE NOTED.

ELEVATIONS, WHERE SHOWN, ARE CENTER OF PIPE AND BOTTOM OF DUCT UNLESS

OTHERWISE NOTED.

COORDINATE SIZE AND LOCATION OF ALL RECESSES AND OPENINGS REQUIRED FOR HVAC

WORK.

LOCATE ALL TEMPERATURE, PRESSURE AND FLOW MEASURING DEVICES IN ACCESSIBLE

LOCATIONS WITH STRAIGHT SECTION OF PIPE OR DUCT UP — OR DOWNSTREAM AS

RECOMMENDED BY THE MANUFACTURER FOR ACCURACY.

LOCATE ALL MECHANICAL EQUIPMENT FOR UNOBSTRUCTED ACCESS TO UNIT ACCESS

PANELS, CONTROLS AND VALVING.

LOCATE TEMPERATURE AND PRESSURE GAUGES INSTALLED IN MECHANICAL ROOMS FOR

UNOBSTRUCTEO ACCESS TO VIEWING.

VERIFY CONDITION OF ALL EXISTING LIFE SAFETY DEVICES (FIRE DAMPERS, DUCT

DETECTORS, ETC.) WITHIN LIMITS OF CONSTRUCTION. REPAIR OR REPLACE IF FOUND TO

BE DAMAGED OR NON-FUNCTIONAL, NOTIFY COR AND REQUEST DIRECTION.

PROVIDE ALL DUCTWORK TRANSITIONS TO ACCOMMODATE ALL FIRE, FIRE / SMOKE

DAMPERS, & TERMINAL BOXES. REFER TO MANUFACTURER’S DATA FOR EQUIPMENT

CONNECTION SIZES.

MECHANICAL CONTRACTOR IS RESPONSIBLE FOR COORDINATING ALL EQUIPMENT AND

COMPONENTS REQUIRING THE ATTENTION OF OTHER CONTRACTORS. THIS INCLUDES BUT

IS NOT LIMITED TO ELECTRICAL REQUIREMENTS, CONDUIT FOR CONTROL WIRE, T-STAT,

FIRE ALARM DEVICES, FIRE SPRINKLERS NEAR EQUIPMENT, AND PLUMBING

CONDENSATE DRAINS.

PIPING

SUPPORT ALL STEEL PIPE AT INTERVALS OF NOT MORE THAN 10 ’-0", COPPER PIPE AT

INTERVALS OF NOT MORE THAN 8 ’-0”.

CONTROLS

INSTALL CONTROL DEVICES AS REQUIRED ON ALL UNITS. VERIFY ALL EQUIPMENT IS

FUNCTIONAL AND PROPER, COMPLETE WORKING CONDITION, AND PROPER BALANCE IS

ACHIEVED BEFORE COMPLETION. COORDINATE WITH OWNER ’S REPRESENTATIVE ON

EXISTING EQUIPMENT.

PROVIDE ALL CONTROLS AND CONTROLLERS, INCLUDING STARTERS AND CONTACTORS,

NECESSARY FOR A COMPLETE AND OPERATIONAL HVAC SYSTEM. INCLUDE ALL

ELECTRICAL WORK NECESSARY TO COMPLY WITH THIS REQUIREMENT. COORDINATE

POWER SOURCE CONNECTIONS PRIOR TO ORDERING EQUIPMENT OR BEGINNING WORK.

COORDINATE THE VOLTAGE AND PHASE OF EACH PIECE OF EQUIPMENT WITH ALL TRADES

BEFORE ORDERING.

PROVIDE ALL CONTROLS COMPATIBLE WITH EXISTING "SIEMENS" ENERGY MANAGEMENT

SYSTEM.

14.

1.

1.

2.

3.

4.

GENERAL MECHANICAL NOTES

1. DEMOLITION SHALL EXTEND TO POINTS OF CONNECTION WITH LIVE SERVICES, PANELBOARDS, OR OTHER APPLICABLE TERMINATION POINTS. DEMOLITION SHALL NOT PERMIT

ABANDONMENT OF ANY SYSTEM OR A COMPONENT OF ANY SYSTEM, UNLESS SPECIFICALLY NOTED AS "ABANDON" OR "TO REMAIN."

2. DEMOLITION OF SYSTEMS SHALL INCLUDE UNITS, SUPPORT SYSTEMS, SYSTEM ACCESSORIES, SYSTEM CONTROLS, \MRING AND CONDUIT FOR POWER AND CONTROLS, ASSOCIATED

PIPING, DUCTWORK, SUPPORTS, ETC. IN THEIR ENTIRETY, UNLESS SPECIFICALLY OTHERWISE NOTED.

3. ALL REMOVED EQUIPMENT SHALL BE MAINTAINED IN GOOD CONDITION. REMOVED EQUIPMENT NOT INDICATED FOR REUSE SHALL REMAIN THE PROPERTY OF THE OWNER. SHOULD

THE OWNER DECLINE POSSESSION OF ANY EQUIPMENT, SAID EQUIPMENT SHALL BECOME THE PROPERTY OF THE CONTRACTOR. THE CONTRACTOR SHALL DELIVER ALL REMOVED

EQUIPMENT TO THE OWNER.

4. THE CONTRACTOR SHALL BE REQUIRED TO REMOVE ALL CONTRACTOR PROPERTY FROM THE SITE. DEMOLITION AND/OR RELOCATION OF CONTROLS FOR UNITS TO REMAIN SHALL

INCLUDE, BUT NOT BE LIMITED TO:

CONTROL VALVES AND DAMPERS - PROVIDE NEW DDC ACTUATORS AS REQUIRED, ALL HVAC CONTROL PANELS.

5. NEW CONTROL SYSTEM SHOP DRAWINGS SHALL INCLUDE ALL EXISTING DEVICES, DAMPERS, CONTROL VALVES, ETC. REFER TO SPECIFICATIONS FOR ADDITIONAL REQUIREMENTS.

6. EXISTING INFORMATION SHOWN ON THE PLANS IS DERIVED FROM ORIGINAL DESIGN AND MODIFICATION PLANS FOR THE SITE MADE AVAILABLE TO THE ENGINEER. ADDITIONAL

UNDOCUMENTED MODIFICATIONS HAVE BEEN MADE AT THE SITE. CONTRACTOR SHALL FIELD VERIFY EXACT LOCATION, ROUTING, AND SIZES OF EXISTING DUCTWORK AND PIPING TO

REMAIN OR BE MODIFIED PRIOR TO BEGINNING ANY WORK. CONTRACTOR SHALL REPORT ANY MAJOR DISCREPANCIES TO THE COR FOR RECOMMENDED ACTION.

GENERAL MECHANICAL DEMOLITION NOTES

PUMP CHEMICAL SHOT FEEDER

C

M-001

MECHANICAL NOTES &

ABBREVIATIONS

MW JM

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMP

321 4 5 6 7 8 9 10

REPLACE CHILLERS AT

ENERGY CENTER

BONHAM, TEXAS

Project Director

Revisions:

549-20-700

Approved: Project Director2340 E. TRIN ITY MILLS, STE. 220

CARROLLTON, TX 75006

972-233-2288

O'Brien Engineering, Inc.

Mr. Byron Rowland, COR Sam Rayburn Memorial Veterans Center Bonham, TX 75418

TEXAS P.E. NO. 123765

MAHNAZ FEKRAZADAN

INTERIM REVIEW AND ARE NOT

INTENDED FOR CONSTRUCTION,

BIDDING, OR PERMIT PURPOSES.

DATE: 12 APRIL 2021

THESE DOCUMENTS ARE FOR

www.obrieneng.com

TEXAS ENGINEERING FIRM F-3758

ISSUE FOR BIDCONSULTANT

Revisions: Date:

L Y

N

S

T

L Y

L Y

V

E

T

E

R

A

B

L

V

D

E C

W

S

E C

W

S

E

C

W

S

E

C

W

S

E C

W

S

E

C

W

S

LEGEND

VA BUILDING NUMBER

CHILLED WATER PIPE

E

C

W

S

E C

W

S

E

C

W

S

E

C

W

S

E

C

W

S

E

C

W

S

MS100

JLMSCALE: 1"=75' MW

KEYED NOTES:

1. UNDERGROUND PIPING.

2. CHILLED WATER SUPPLY PIPING LOCATIONS SHOWN FOR

REFERENCE AND BASED OFF INFORMATION OBTAINED FROM THE VA

STAFF.

CHILLER PLANT SITE PLAN

SCALE: 1" = 75'

0 150'75' 225'

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMP

321 4 5 6 7 8 9 10

REPLACE CHILLERS AT

ENERGY CENTER

BONHAM, TEXAS

Project Director

Revisions:

549-20-700

Approved: Project Director2340 E. TRIN ITY MILLS, STE. 220

CARROLLTON, TX 75006

972-233-2288

O'Brien Engineering, Inc.

Mr. Byron Rowland, COR Sam Rayburn Memorial Veterans Center Bonham, TX 75418

TEXAS P.E. NO. 123765

MAHNAZ FEKRAZADAN

INTERIM REVIEW AND ARE NOT

INTENDED FOR CONSTRUCTION,

BIDDING, OR PERMIT PURPOSES.

DATE: 12 APRIL 2021

THESE DOCUMENTS ARE FOR

www.obrieneng.com

TEXAS ENGINEERING FIRM F-3758

ISSUE FOR BIDCONSULTANT

Revisions: Date:

FULLY SPRINKLERED

04.27.2021

NORTH

SCALE: 1" = 75'

CHILLER PLANT SITE PLAN

MECHANICAL EQUIPMENT ROOM

AB 20

(E) CH-1

CHP-1 CHP-2 CHP-3 CHP-4

(E) CH-3

12"12"

CWS

CHS

CWS

CWS

C H

S

CHR

CHR

CHR

CHR

CT-1

CT-3

CT-2

E Q

U A

L I Z

A T

I O

N

CWP-1 CWP-2 CWP-3 CWP-4

FCU-1

LLHX-1

75 HP

CWR

CONCRETE PAD

PUMP VFDs

CWS

(E) CH-2

12"

60 HP75 HP75 HP

2 2 2

3 3 3 3

CHR

2 2 2 2

FM

X

CHP PUMP ELEC

SWITCHES

C H

E

L E

C

S

W I T

C H

E S

10"

D N

C

24"X12"

X

12" 12" 10" 10"

M-101

MWMA

KEYED NOTES:

1. DEMOLISH EXISTING CHILLER (CH-3) AND ASSOCIATED

PIPING TO MAIN LINES AS SHOWN. CAP SUPPLY/RETURN

LINES WITH BLIND FLANGE. CONTRACTOR SHALL FIELD

VERIFY EXISTING CONTROL VALVES. IF THEY ARE IN GOOD

WORKING CONDITION, VALVES MAY BE REUSED..

2. DEMOLISH CHILLED WATER PUMP AND ALL ASSOCIATED

PIPING TO ISOLATION VALVES IN VERTICAL PIPE AS SHOWN.

THIS INCLUDES VIBRATION ISOLATION AND METAL BASE.

MECHANICAL CONTRACTOR SHALL FIELD VERIFY AS

REQUIRED.

3. CONCRETE PAD SHALL BE DEMOLISHED AND PREPARED

FOR NEW CONCRETE PAD.

4. EXIST. CHEMICAL FEEDWATER TANK SHALL BE

DEMOLISHED.

5. EXISTING EXHAUST DUCT UP TO THE ROOF CONNECTED TO

EXHAUST FAN TO REMAIN.

DEMOLITION MECHANICAL

FLOORPLAN

GENERAL NOTES:

1. REFER TO SHEET M-001 FOR GENERAL MECHANICAL

NOTES, LEGENDS AND ABBREVIATION.

2. REFER TO SHEET MS100 FOR LOCATION OF THIS BUILDING

(BLDG 23) AND FOR WORK IN OTHER BUILDINGS.

SCALE:

" = 1'-0"

0 2' 4' 12'8'

SCALE:

" = 1'-0"

DEMOLITION MECHANICAL FLOORPLAN

NORTH

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMP

321 4 5 6 7 8 9 10

REPLACE CHILLERS AT

ENERGY CENTER

BONHAM, TEXAS

Project Director

Revisions:

549-20-700

Approved: Project Director2340 E. TRIN ITY MILLS, STE. 220

CARROLLTON, TX 75006

972-233-2288

O'Brien Engineering, Inc.

Mr. Byron Rowland, COR Sam Rayburn Memorial Veterans Center Bonham, TX 75418

TEXAS P.E. NO. 123765

MAHNAZ FEKRAZADAN

INTERIM REVIEW AND ARE NOT

INTENDED FOR CONSTRUCTION,

BIDDING, OR PERMIT PURPOSES.

DATE: 12 APRIL 2021

THESE DOCUMENTS ARE FOR

www.obrieneng.com

TEXAS ENGINEERING FIRM F-3758

ISSUE FOR BIDCONSULTANT

Revisions: Date:

CHR

CH-3

(E) CH-1

CHP-1 CHP-2 CHP-3 CHP-4

CWS

CHS

C H

S

CHR

CHR

CT-1

CT-3

CT-2

E Q

U A

L I Z

A T

I O

N

CWP-1 CWP-2 CWP-3 CWP-4

FCU-1

LLHX-1

CWR

CONCRETE PAD

(E) CH-2

CWS

CWS

CHR

CHR

CWS

1 2 3 4 5

E

D

C

B

A

3 3 3

C

W R

12"

CWS

10" CHS

10"

CHR

M-102

JMMA

KEYED NOTES:

1. PROVIDE NEW 800-TON CHILLER AND ASSOCIATED PIPING

AND CONTROLS TO TIE INTO EXISTING SYSTEM. MECHANICAL

CONTRACTOR SHALL FIELD VERIFY AS REQUIRED. SEE

SHEET M-501 AND M-601 FOR SCHEDULE AND DETAILS.

2. PROVIDE NEW 75 HP CHILLED WATER PUMPS. SEE SHEET

M-501 AND M-601 FOR SCHEDULE AND DETAILS. CONNECT TO

EXISTING SYSTEM. REFER TO ELECTRICAL DRAWINGS FOR

DETAILS ON WIRING, CONTROLS AND VFD.

3. CONSTRUCT NEW CONCRETE EQUIPMENT PADS. PROVIDE

VIBRATION ISOLATORS FOR PUMPS. REFER TO DETAILS ON

SHEET M-501.

4. PROVIDE A NEW CHEMICAL SHOT FEEDER TREATMENT

SYSTEM FOR THE CHILLED WATER AT THE PUMP. NEW TANK

SHALL BE THE SAME SIZE OF EXISTING TANK. PROVIDE WITH

NECESSARY SHUT OFF VALVES, AND SYSTEM CONNECTIONS.

(MIN 125 PSIG WORKING PRESSURE.)

PROPOSED MECHANICAL

FLOORPLAN

SCALE:

" = 1'-0"

0 2' 4' 12'8'

NORTH

SCALE:

" = 1'-0"

PROPOSED MECHANICAL FLOORPLAN

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMP

321 4 5 6 7 8 9 10

REPLACE CHILLERS AT

ENERGY CENTER

BONHAM, TEXAS

Project Director

Revisions:

549-20-700

Approved: Project Director2340 E. TRIN ITY MILLS, STE. 220

CARROLLTON, TX 75006

972-233-2288

O'Brien Engineering, Inc.

Mr. Byron Rowland, COR Sam Rayburn Memorial Veterans Center Bonham, TX 75418

TEXAS P.E. NO. 123765

MAHNAZ FEKRAZADAN

INTERIM REVIEW AND ARE NOT

INTENDED FOR CONSTRUCTION,

BIDDING, OR PERMIT PURPOSES.

DATE: 12 APRIL 2021

THESE DOCUMENTS ARE FOR

www.obrieneng.com

TEXAS ENGINEERING FIRM F-3758

ISSUE FOR BIDCONSULTANT

Revisions: Date:

CONCRETE PAD

CH-3

10" CHILLED WATER RETURN

TO EVAPORATOR INLET

10" CHILLED WATER SUPPLY

FROM EVAPORATOR OUTLET

(E) EXHAUST

DUCT TO ROOF

12" CONDENSER WATER SUPPLY

TO CONDENSER INLET

(E) FLOOR

(E) 40"X24" SUPPLY

DUCTWORK

C

W R

C

W S

C

H R

C

H S

(E)18" CWR & CWS

(E)12" CHR

(E) 12" CHS

12" CONDENSER WATER RETURN

TO CONDENSER OUTLET

CONCRETE PAD

(E) FLOOR

10" CHS&CHR,

12" CWS & CWR

CHS

CHR

CWSCWR

CH-3

18"

FCU-1

EXHAUST FAN TO ROOF EXTERIOR WALL

EXISTING EXHAUST DUCT

EXISTING SUPPLY DUCT

12"

M-301

JMMA

KEYED NOTES:

1. CONTRACTOR SHALL FIELD VERIFY ALL PIPE AND EQUIPMENT

LOCATIONS PRIOR TO CONSTRUCTION.

CHILLER INSTALLATION SECTIONS

SCALE:

" = 1'-0"

0 1' 2' 6'4'

NORTH

SCALE:

" = 1'-0"

END VIEW - CHILLER (CH-3)

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMP

321 4 5 6 7 8 9 10

REPLACE CHILLERS AT

ENERGY CENTER

BONHAM, TEXAS

Project Director

Revisions:

549-20-700

Approved: Project Director2340 E. TRIN ITY MILLS, STE. 220

CARROLLTON, TX 75006

972-233-2288

O'Brien Engineering, Inc.

Mr. Byron Rowland, COR Sam Rayburn Memorial Veterans Center Bonham, TX 75418

TEXAS P.E. NO. 123765

MAHNAZ FEKRAZADAN

INTERIM REVIEW AND ARE NOT

INTENDED FOR CONSTRUCTION,

BIDDING, OR PERMIT PURPOSES.

DATE: 12 APRIL 2021

THESE DOCUMENTS ARE FOR

www.obrieneng.com

TEXAS ENGINEERING FIRM F-3758

ISSUE FOR BIDCONSULTANT

Revisions: Date:

FULLY SPRINKLERED

04.27.2021

SCALE:

" = 1'-0"

SIDE VIEW - CHILLER (CH-3)

NOTE: NOT ALL EXISTING PIPING

AND EQUIPMENT ARE

SHOWN IN THE DETAIL.

TRAPEZE HANGER FOR UP TO

453KG [1000 LB.] UNIFORM LOAD

ADJUSTABLE CLEVIS HANGER

TYPE 1 - SEE SPECIFICATIONS

ADJUSTABLE CLEVIS HANGER

TYPE 43 - SEE SPECIFICATIONS

PROVIDE INSULATION SHIELD

& INSERT FOR ALL PIPING

(200mm [8"] MIN.)

BAND

43mm [1-5/8"] 12 GAUGE

CHANNEL OR 50x50x6.4mm

[2"X2"X1/4"] ANGLE

15mm [1/2"] DIA.

HANGER RODS WITH

900mm [36"] MAX.

SPACING ON EACH

CHANNEL

WELD

SADDLE

INSULATION SHIELD

AT HANGER

PROVIDE HIGH COMPRESSIVE

STRENGTH INSULATION (9 PSF

MIN. DENSITY) UNDER INSULATION

SHIELD

INSULATION (VAPOR

BARRIER TYPE IS

REQUIRED FOR LOW

TEMPERATURE PIPE)

HANGER ROD

MAXIMUM PIPE/TUBING SUPPORT SPACING

NOTE: FOR TRAPEZE HANGER TAKE SPACING OF SMALLEST SIZE ON TRAPEZE.

NOM. SIZE

PIPE

TUBING

m m

M

A X mm

[IN]

mm

[FT]

mm

[FT]

THRU 20

[THRU 3/4]

[7]

[5]

[1]

[7]

[6]

[1-1/4]

[7]

[7]

[1-1/2]

[9]

[8]

[2]

[10]

[8]

[2-1/2]

[11]

[9]

[3]

[12]

[10]

[4]

[14]

[12]

[5]

[16]

[13]

[6]

[17]

[14]

[8]

[19]

[16]

[10]

[22]

[12]

[23]

[14]

[25]

[16]

[27]

[18]

[28]

[20]

[30]

[24]

[32]

N.T.S.

TYPICAL PIPE HANGERS

NOTES:

SEE SPECIFICATION SECTION "PUMPS" FOR Y STRAINER OPTION.

PRESSURE GAGE

PUMP

FLOOR

CONCRETE BASE

(SEE DETAIL)

1/2" [15mm]

MECHANICAL COUPLINGS (6"

[150mm] MIN. SPACING)

(TYPICAL)

SUCTION DIFFUSER WITH

BUILT-IN STRAINER

DRAIN

1" [25mm] MIN. DIA.

PIPE STAND

OPTIONAL STRAINER

CHECK VALVE

BUTTER OR BALL

SHUT OFF VALVE, TYP.

N.T.S.

DOUBLE SUCTION FLOOR-MOUNTED

PUMPS - CONNECTIONS WITH

MECHANICAL COUPLINGS

N.T.S.

VIBRATION ISOLATION BASES

N.T.S.

WATER COOLED CHILLER -

PIPING CONNECTIONS

TYPICAL STRUCTURAL

STEEL MEMBER FOR

EQUIPMENT

TYPE"B"

WELDED STEEL BASE

TYPE "1"

CONCRETE INERTIA BASE

NUMBER OF ISOLATION

UNITS AS REQUIRED

NUMBER OF ISOLATION

UNITS AS REQUIRED

TYPICAL STRUCTURAL

STEEL MEMBER FOR

EQUIPMENT

ALL WELDED

STEEL FRAMEWORK

SECTION A-A

STRUCTURAL

STEEL FRAME

SPRING

ISOLATOR

ANCHOR

BOLT

REINFORCING BARSSLEEVE

E

Q

U

I

P

M

E

D

R

I

V

E

N

A

A

E

Q

U

I

P

M

E

D

R

I

V

E

N

M

O

T

O

R

S

H

A

F

T

M

O

T

O

R

S

H

A

F

T

NOTE:

1. DRAIN ALL LOW POINTS OF SYSTEMS TO

NEAREST FLOOR DRAIN.

2. PROVIDE MARINE WATER BOXES FOR

BOTH CONDENSER AND EVAPORATOR.

3. COLLECT VENT PIPES FROM ALL

REFRIGERANT PRESSURE RELIEF

DEVICES AND EXTEND TO EXTERIOR OF

BUILDING IN ACCORDANCE WITH ASHRAE

STANDARD 15. HEADER SIZE TO EQUAL

OR EXCEED TOTAL AREA OF DEVICES

CONNECTED TO THE HEADER.

4. PROVIDE MODULATING BUTTERFLY

VALVES ON BOTH CHWR & CWR. VALVES

CONTROLLED BY ECC.

5. FOR PIPING 6" AND BELOW, MECHANICAL

COUPLINGS ARE OPTIONAL. ABOVE 6",

WELDED PIPE WITH FLANGES IS THE

ONLY APPROVED JOINING METHOD.

PIPE HANGERS

(TYP)

COND

WATER FLOW

MEASURING DEVICE

TO COOLING

TOWER

THERMOMETER

(TYP.)

VIBRATION

ISOLATION AS

SPECIFIED

6" [150mm] HIGH

CONCRETE PAD

(TYP.)

CWR

VENT PIPE

COND

EVAPEVAP

FLOW

SWITCH, TYP

PRESSURE

RELIEF DEVICE

CONDENSER END EVAPORATOR END

FROM COOLING

TOWER

BUTTERFLY CONTROL

VALVE, TYP.

FLOOR

DRAIN

FLOOR

DRAIN

FS

FS

MARINE

WATER

BOX TYP.

CWS

CHS

CHR

POINT OF CONNECTION

M-501

MECHANICAL DETAILS

MA MW

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMP

321 4 5 6 7 8 9 10

REPLACE CHILLERS AT

ENERGY CENTER

BONHAM, TEXAS

Project Director

Revisions:

549-20-700

Approved: Project Director2340 E. TRIN ITY MILLS, STE. 220

CARROLLTON, TX 75006

972-233-2288

O'Brien Engineering, Inc.

Mr. Byron Rowland, COR Sam Rayburn Memorial Veterans Center Bonham, TX 75418

TEXAS P.E. NO. 123765

MAHNAZ FEKRAZADAN

INTERIM REVIEW AND ARE NOT

INTENDED FOR CONSTRUCTION,

BIDDING, OR PERMIT PURPOSES.

DATE: 12 APRIL 2021

THESE DOCUMENTS ARE FOR

www.obrieneng.com

TEXAS ENGINEERING FIRM F-3758

ISSUE FOR BIDCONSULTANT

Revisions: Date:

M-601

MECHANICAL SCHEDULES

MA MW

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMP

321 4 5 6 7 8 9 10

REPLACE CHILLERS AT

ENERGY CENTER

BONHAM, TEXAS

Project Director

Revisions:

549-20-700

Approved: Project Director2340 E. TRIN ITY MILLS, STE. 220

CARROLLTON, TX 75006

972-233-2288

O'Brien Engineering, Inc.

Mr. Byron Rowland, COR Sam Rayburn Memorial Veterans Center Bonham, TX 75418

TEXAS P.E. NO. 123765

MAHNAZ FEKRAZADAN

INTERIM REVIEW AND ARE NOT

INTENDED FOR CONSTRUCTION,

BIDDING, OR PERMIT PURPOSES.

DATE: 12 APRIL 2021

THESE DOCUMENTS ARE FOR

www.obrieneng.com

TEXAS ENGINEERING FIRM F-3758

ISSUE FOR BIDCONSULTANT

Revisions: Date:

FULLY SPRINKLERED

04.27.2021

SCALE: NONE

MECHANICAL SCHEDULES

CH-1 CH-2 CH-3

CHR

CHS

CHR

AS-1

ET-1

EXPANSION TANK

CHP-1 CHP-2 CHP-3 CHP-4

CHS

CHR

SERVING VA BONHAM

BLDGS 1,2,3,24,29

WATER TREATMENT

TANKS

CHS

CHR

CHS

MOTORIZED CONTROL VALVE

CHR

CWP-1 CWP-2 CWP-3 CWP-4

LLHX-1

C H

S

CWS

CWS

C W

S

CWS

CWS

CWR CWR

CWR

CWR

C W

R

PROJECT AREA

(E) CT-1

10" 10" 10" 10" 10" 10" 10" 10"

12"16"16"16"

10"10"10"10"

400T

(E) CT-2

400T

(E) CT-3

400T

(E) CT-4

400T

1"

1"

16"

C W

S

12"

12"

8" 8" 8" 8" 8" 8" 8" 8"

C H

R

CHEMS

CHEMR

8"

8"

CWR

16"

16"

16" 12"

16"16"

8" 12" 12" 12"

8" 10" 10" 10"

10"

12"

12" 12"

8"

8" 8"

12"

12"

12"

12"12"12"12"

CWS

10"

14"

14"

CWS

12"

CHEMICAL

SHOT FEEDER

CHEMS

C H

E M

R

M-602

MECHANICAL DIAGRAMS

MA MW

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMP

321 4 5 6 7 8 9 10

REPLACE CHILLERS AT

ENERGY CENTER

BONHAM, TEXAS

Project Director

Revisions:

549-20-700

Approved: Project Director2340 E. TRIN ITY MILLS, STE. 220

CARROLLTON, TX 75006

972-233-2288

O'Brien Engineering, Inc.

Mr. Byron Rowland, COR Sam Rayburn Memorial Veterans Center Bonham, TX 75418

TEXAS P.E. NO. 123765

MAHNAZ FEKRAZADAN

INTERIM REVIEW AND ARE NOT

INTENDED FOR CONSTRUCTION,

BIDDING, OR PERMIT PURPOSES.

DATE: 12 APRIL 2021

THESE DOCUMENTS ARE FOR

www.obrieneng.com

TEXAS ENGINEERING FIRM F-3758

ISSUE FOR BIDCONSULTANT

Revisions: Date:

FULLY SPRINKLERED

04.27.2021

SCALE: NONE

CHILLED WATER FLOW DIAGRAM

ELECTRICAL ABBREVIATIONS

AASHTO AMERICAN ASSOCIATION OF STATE HIGHWAY AND

TRANSPORTATION OFFICIALS

A-AMP AMPERE

ABV ABBREVIATION

AC ABOVE COUNTER

AF AMP FUSE; AMP FRAME

AFF ABOVE FINISHED FLOOR

AFG ABOVE FINISHED GRADE

AG ABOVE GROUND

AL ALUMINUM

AIC AMPS INTERRUPTING CAPACITY (SYM RMS)

ANSI AMERICAN NATIONAL STANDARDS INSTITUTE

AS AMP SWITCH

AT AMP TRIP

ATS AUTOMATIC TRANSFER SWITCH

AWG AMERICAN WIRE GAGE

AUX AUXILIARY

BAS BUILDING AUTOMATION SYSTEM

BLDG BUILDING

C CONDUIT

CB CIRCUIT BREAKER

CKT CIRCUIT

CL CENTER LINE

CONC CONCENTRIC

CONT CONTINUOUS

COR CONTRACTING OFFICER'S REPRESENTATIVES

CPT CONTROL POWER TRANSFORMER

CT CURRENT TRANSFORMER

CU COPPER

DEMO DEMOLITION

DET DETAIL

DIM DIMENSION

DISC DISCONNECT

DWG DRAWING

E EAST

ECB ENCLOSED CIRCUIT BREAKER

ELEC ELECTRICAL OR ELECTRIC

ENCL ENCLOSURE

ENT ENTRANCE

EQUIP EQUIPMENT

EXC EXCAVATE

EXIST EXISTING

EXP EXPOSED

EXT EXTERIOR

FDN FOUNDATION

FHWA FEDERAL HIGHWAY ADMINISTRATION

FIG FIGURE

FIN FINISH

FLEX FLEXIBLE

FOUO FOR OFFICIAL USE ONLY

FUT FUTURE

GFCI GROUND FAULT CIRCUIT INTERRUPTER

GND OR GRD GROUND

G.O. GANG OPERATED

GOVT GOVERNMENT

GRC GALVANIZED RIGID STEEL CONDUIT

HID HOST INTERFACE DEVICE

IT INFORMATION TECHNOLOGY

J-BOX JUNCTION BOX

K KEY

KCMIL THOUSANDS OF CIRCULAR MILS

KV KILOVOLTS

KVA KILOVOLT AMPERES

KW KILOWATT

KWH KILOWATT HOURS

KVAR KILOVOLT AMPERES REACTIVE

LPR LICENSE PLATE READER

LTG LIGHTING

MASH MANUAL FOR ASSESSING SAFETY HARDWARE

MGB MAIN GROUND BAR

MH MANHOLE

MSS MAIN SWITCH STATION

MTS MANUAL TRANSFER SWITCH

N NORTH

NACE NATIONAL ASSOCIATION OF CORROSION

ENGINEERS

NEC NATIONAL ELECTRICAL CODE

NEMA NATIONAL ELECTRICAL MANUFACTURERS

ASSOCIATION

NIC NOT IN CONTRACT

NO NORMALLY OPEN, NUMBER

OD OUTSIDE DIAMETER

O.C.A. ON CENTER

PART PARTIAL HOMERUN

PCR PROXIMITY CARD READER

PIV PERSONAL IDENTITY VERIFICATION

PNL PANEL

PF POWER FACTOR

PFCS POWER FACTOR CORRECTION STATION

PH PHASE

POE+ POWER OVER ETHERNET PLUS

PSS PRIMARY SWITCH STATION

PVC POLYVINYL CHLORIDE

RECP RECEPTACLE

REF REFERENCE

REQD REQUIRED

RM ROOM

S SOUTH

SEC SECONDARY

SPEC SPECIFICATIONS

ST SWITCH STATION

SW SWITCH

SWGR SWITCHGEAR

SYM SYMMETRICAL

SYS SYSTEM

TEL TELEPHONE

TMGB TELECOMMUNICATIONS MAIN GROUNDING

BUSBAR

TP TAMPER PROOF

TXDOT TEXAS DEPARTMENT OF TRANSPORTATION

TYP TYPICAL

UG UNDERGROUND

UON UNLESS OTHERWISE NOTED

UP UTILITY POLE

UPS UNINTERRUPTIBLE POWER SUPPLY

URD UNDERGROUND RESIDENTIAL DISTRIBUTION

V VOLT

VA VOLT AMPERE

VT VOLTAGE TRANSFORMER

W WEST

WAP WIRELESS APPLICATION PROTOCOL

WP WEATHERPROOF

WPF WATER PROOF

XMFR TRANSFORMER

(NOT ALL ABBREVIATIONS REQUIRED FOR THIS PROJECT)

1. CONTRACTOR IS ENCOURAGED TO VISIT ALL AREAS OF WORK, INCLUDING WALKING THE SITE, MEASURING

EXISTING DIMENSIONS AND OBSERVING EXISTING CONDITIONS BEFORE BIDDING WORK, ORDERING

MATERIALS, AND/OR STARTING ANY CONSTRUCTION WORK.

2. UNLESS NOTED OTHERWISE, THE GOVERNMENT HAS FIRST RIGHT OF REFUSAL FOR ALL MATERIALS

REMOVED. IF GOVERNMENT REFUSES MATERIALS TO BE REMOVED, DISPOSE OF ALL WASTE MATERIAL IN

APPROVED MANNER AND LOCATION, COORDINATE MATERIALS FOR SALVAGE AND RECYCLING WITH COR. THE

CONTRACTOR SHALL USE ONLY DESIGNATED PATHWAYS AS ESTABLISHED TO REMOVE ITEMS AND

MATERIALS FROM THE PROJECT BUILDING AND SITE.

3. ALL BUILDING SYSTEMS SERVING OCCUPIED AREAS OF THE FACILITY SHALL REMAIN FULLY OPERATIONAL AT

ALL TIMES. CONTRACTOR SHALL PROTECT AND MAINTAIN ALL EXISTING BUILDING SYSTEMS INCLUDING ALL

SYSTEMS PASSING THROUGH AND ADJACENT TO AREAS REQUIRED; INCLUDING, BUT NOT LIMITED TO, WIRING, CONDUITS, PIPING, DUCTWORK, AND OTHER UTILITIES THAT SERVE OCCUPIED AREAS.

4. COORDINATE WITH COR AND COMPLY WITH THEIR REGULATIONS FOR NOISE AND VIBRATION.

5. PROVIDE SEALANT AROUND ALL ELECTRICAL OUTLETS, PLUMBING FIXTURES, PIPING, AND EQUIPMENT

ABUTTING OR PENETRATING A WALL OR PARTITION INCLUDING FIRESTOPPING AT FIRE RATED ASSEMBLES.

6. UNLESS OTHERWISE NOTED, ALL WIRES AND CABLES SHALL BE CONTINUOUS WITHOUT SPLICES OR TAPS IN

CONDUIT RUNS. ALL WIRING SHALL BE IN CONDUIT OR AS NOTED. ALL SPLICES SHALL BE MADE AT OUTLET

BOXES, PULL BOXES OR JUNCTION BOXES. AT ALL JOINTS, CONDUCTORS SHALL BE SPLICED OR JOINED AS

TO BE MECHANICALLY AND ELECTRICALLY SECURE.

7. IDENTIFICATION OF NEUTRAL, GROUNDING OF CIRCUITS, AND NUMBER OF WIRES IN CONDUIT SHALL COMPLY

IN ALL RESPECTS WITH THE REQUIREMENTS OF THE NEC.

8. ALL BOXES AND ENCLOSURES SHALL BE SET PLUMB, SQUARE AND SECURELY FASTENED. BOXES IN FINISHED

WALLS SHALL BE FLUSH WITH FINISH SURFACE. ALL PULL AND JUNCTION BOXES SHALL BE SIZED PER NEC

ARTICLE 314.

9. ALL ELECTRICAL WORK SHALL BE IN STRICT COMPLIANCE WITH THE CURRENT EDITION OF THE NEC AS

ADOPTED BY THE LOCAL JURISDICTION INCLUDING ANY LOCAL AMENDMENTS, ORDINANCES, AND

INTERPRETATIONS. ELECTRICAL WORK SHALL ALSO COMPLY WITH ANY APPLICABLE FEDERAL AND STATE

REGULATIONS.

10. COORDINATE INSTALLATION OF CONDUIT WITH OTHER TRADES AND EQUIPMENT SUPPLIERS AS REQUIRED

PRIOR TO ROUGH-IN.

11. WIRE SHALL NOT BE DRAWN INTO CONDUIT UNTIL ALL WORK WHICH COULD CAUSE INJURY TO THE

CONDUCTORS IS COMPLETE.

12. PROVIDE AND MAINTAIN ELECTRICAL SAFETY AND WORKING CLEARANCES IN FRONT OF AND AROUND ALL

ELECTRICAL PANELS AND DISTRIBUTION EQUIPMENT IN ACCORDANCE WITH NEC.

13. ELECTRICAL CONTRACTOR SHALL BE RESPONSIBLE FOR CUTTING AND CORE DRILLING ALL PENETRATIONS

THROUGH FLOORS, WALLS, ETC. STRUCTURAL ELEMENTS SHALL NOT BE PENETRATED UNLESS APPROVED

BY STRUCTURAL ENGINEER.

14. IT IS NOT INTENDED THAT THE PLANS INDICATE ALL CONDUIT ROUTES, PULL BOXES, ETC. ELECTRICAL

CONTRACTOR SHALL BE RESPONSIBLE FOR DETERMINING ACTUAL CONDUIT ROUTING, QUANTITY, AND

LOCATION OF PULL BOXES WITHIN ACCESSIBLE LOCATIONS. PROVIDE SCREW-COVER PULL BOXES IN

CONDUIT RUNS AS REQUIRED TO LIMIT NUMBER OF BENDS TO NO MORE THAN THREE (3) OR 270 DEGREES

TOTAL. SIZE PULL BOXES IN ACCORDANCE WITH NEC. DOCUMENT ON RECORD DRAWINGS THE SIZE AND

LOCATION OF PULL BOXES USED IN FEEDER CONDUIT RUNS. AN EXCEPTION IS TELECOMMUNICATIONS, WHICH LIMITS BENDS TO TWO AND MAXIMUM PULL DISTANCE OF 100'.

15. REFER TO SPECIFICATIONS FOR ADDITIONAL INFORMATION ABOUT QUALITY AND GENERAL INSTALLATION

REQUIREMENTS OF ELECTRICAL CONSTRUCTION MATERIALS, ITEMS, AND DEVICES.

16. CONDUIT RUNS SHOWN ARE FOR REFERENCE AND BIDDING PURPOSES. VERIFY EXISTING FIELD CONDITIONS

AND DETERMINE SHORTEST AND LEAST DISRUPTIVE ROUTE FOR CONDUIT RUNS. COORDINATE WITH OTHER

TRADES AND CONFIRM ROUTE SELECTION WITH COR PRIOR TO BID. ANY DEVIATIONS FROM DRAWINGS

SHALL BE SHOWN IN DETAIL ON AS-BUILT DRAWINGS BY CONTRACTOR.

17. FOR QUALITY ASSURANCE, ALL EQUIPMENT SHALL BE UL LISTED AND BEAR THE INSPECTION LABEL OF

UNDERWRITER LABORATORIES, INC. MATERIALS SHALL ALSO BE APPROVED AND CONFORM TO ANSI AND U.S.

STANDARDS. PERFORM WORK IN ACCORDANCE WITH THE NATIONAL ELECTRICAL CONTRACTOR

ASSOCIATION (NECA) "STANDARD OF INSTALLATION."

18. ELECTRICAL DRAWINGS ARE DIAGRAMMATIC. SIZE AND LOCATION OF EQUIPMENT AND WIRING ARE SHOWN

TO SCALE WHERE POSSIBLE, BUT MAY BE DISTORTED FOR CLARITY ON THE DRAWINGS. FINAL LOCATIONS OF

OUTLETS AND EQUIPMENT SHALL BE AS SHOWN IN ENLARGED DETAILS OR AS APPROVED BY THE COR.

19. THE PLANS DO NOT INDICATE ALL THE NECESSARY BENDS, OFFSETS, PULL BOXES AND OBSTRUCTIONS. IT

SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO INSTALL HIS WORK TO CONFORM TO THE

STRUCTURE, MAINTAIN HEADROOM, AND KEEP OPENINGS AND PASSAGEWAYS CLEAR.

20. GROUNDING OF THE ELECTRICAL SYSTEM SHALL BE BY MEANS OF AN INSULATED GROUNDING CONDUCTOR

INSTALLED WITH FEEDER CONDUCTORS IN ALL CONDUITS WHETHER OR NOT INDICATED ON DRAWINGS.

GROUNDING CONDUCTORS SHALL BE SIZED IN ACCORDANCE WITH NEC TABLE 250.122. PROVIDE GROUNDING

CONDUCTOR IN ALL TELEPHONE AND DATA SERVICE CONDUITS.

21. PROVIDE ALL CUTTING AND PATCHING REQUIRED FOR THE PROPER INSTALLATION OF THE NEW ELECTRICAL

WORK. ALL PATCHING SHALL BE OF THE SAME MATERIALS, WORKMANSHIP, AND FINISH AND SHALL

ACCURATELY MATCH ALL ADJACENT WORK. CONTRACTOR TO PATCH, AND REPAIR WALL AND CEILING

SURFACES TO A "LIKE NEW" FINISH. COORDINATE WITH COR.

22. CLEAN ALL AREAS OF WORK UPON COMPLETION, INCLUDING BUT NOT LIMITED TO: ALL EXISTING EQUIPMENT, PANELS, FIXTURES, LIGHTS, BOXES, WIRING, WINDOWS, BLINDS, AND REGISTERS. CONTRACTOR TO REPLACE

ANY CEILING TILES DAMAGED IN THE COURSE OF WORK.

23. VERIFY AND CORRECT ALL PANEL SCHEDULES OF PANELS THAT ARE BEING INSTALLED OR MODIFIED.

PROVIDE TYPED PANEL SCHEDULES. HAND WRITTEN PANEL SCHEDULES ARE NOT ALLOWED. INCLUDE FINAL

PANEL SCHEDULES AS PART OF AS-BUILT DRAWINGS.

24. ALL WIRING SHALL BE AT A MINIMUM #12 AWG.

25. COMPLETE EACH CONDUIT RUN BEFORE INSTALLING CONDUCTORS. REAM AND DEBUR CONDUIT ENDS TO

PROTECT CONDUCTOR INSULATION.

26. (PART) ANNOTATION INDICATES MULTIPLE CONNECTIONS TO THE SAME HOMERUN. CONNECT TO IDENTIFIED

CIRCUIT BEFORE ENTERING PANELBOARD.

GENERAL NOTES

E-001

ELECTRICAL GENERAL NOTES &

ABBREVIATIONS

TM JM

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMP

321 4 5 6 7 8 9 10

REPLACE CHILLERS AT

ENERGY CENTER

BONHAM, TEXAS

Project Director

Revisions:

549-20-700

Approved: Project Director2340 E. TRIN ITY MILLS, STE. 220

CARROLLTON, TX 75006

972-233-2288

O'Brien Engineering, Inc.

Mr. Byron Rowland, COR Sam Rayburn Memorial Veterans Center Bonham, TX 75418

TEXAS P.E. NO. 68486

TIMOTHY J. MUECK

INTERIM REVIEW AND ARE NOT

INTENDED FOR CONSTRUCTION,

BIDDING, OR PERMIT PURPOSES.

DATE: 12 APRIL 2021

THESE DOCUMENTS ARE FOR

www.obrieneng.com

TEXAS ENGINEERING FIRM F-3758

ISSUE FOR BIDCONSULTANT

Revisions: Date:

CHR

CHP-1 CHP-2 CHP-3 CHP-4

(E) CH-3

75 HP 60 HP75 HP75 HP

PANEL 1-LA

PUMP ELEC SWITCHES

CHILLER

ELEC.

SWITCHES

PUMP VFDs

E-101

JMTJM

KEYED NOTES:

1. DISCONNECT AND DEMOLISH EXISTING CHILLER (CH-3)

ELECTRICAL WIRING AND CONDUIT, VFDS, AND

ASSOCIATED ELECTRICAL EQUIPMENT. PREPARE FOR NEW

ELECTRICAL WIRING, CONDUIT, CONTROLS AND, VFDs.

2. DISCONNECT AND DEMOLISH EXISTING PUMP ELECTRICAL

WIRING AND CONDUIT, VFDS, AND ASSOCIATED

ELECTRICAL EQUIPMENT TO PUMP ELECTRICAL SWITCHES.

PREPARE FOR NEW ELECTRICAL WIRING, CONDUIT,

CONTROLS AND, VFDs.

3. EXISTING ELECTRICAL GEAR PRESENTLY SERVING

CHILLERS AND PUMPS. REMOVE CHP-4 CIRCUIT BREAKER.

WILL REPLACE WITH ONE FOR 75 HP MOTOR VFD.

DEMOLITION ELECTRICAL PLAN

SCALE:

" = 1'-0"

0 2' 4' 12'8'

SCALE:

" = 1'-0"

DEMOLITION ELECTRICAL PLAN

NORTH

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMP

321 4 5 6 7 8 9 10

REPLACE CHILLERS AT

ENERGY CENTER

BONHAM, TEXAS

Project Director

Revisions:

549-20-700

Approved: Project Director2340 E. TRIN ITY MILLS, STE. 220

CARROLLTON, TX 75006

972-233-2288

O'Brien Engineering, Inc.

Mr. Byron Rowland, COR Sam Rayburn Memorial Veterans Center Bonham, TX 75418

TEXAS P.E. NO. 68486

TIMOTHY J. MUECK

INTERIM REVIEW AND ARE NOT

INTENDED FOR CONSTRUCTION,

BIDDING, OR PERMIT PURPOSES.

DATE: 12 APRIL 2021

THESE DOCUMENTS ARE FOR

www.obrieneng.com

TEXAS ENGINEERING FIRM F-3758

ISSUE FOR BIDCONSULTANT

Revisions: Date:

FULLY SPRINKLERED

04.27.2021

GENERAL NOTES:

1. REFER TO SHEET E-001 FOR GENERAL ELECTRICAL NOTES

& ABBREVIATIONS FOR THIS PROJECT.

CHR

1 2 3 4 5

E

D

C

B

A

MECHANICAL EQUIPMENT ROOM

AB 20

CHR

CT-1

CT-3

CT-2

E Q

U A

L I Z

A T

I O

N

CWP-1 CWP-2 CWP-3 CWP-4

LLHX-1

(E) CH-2

2 222

PANEL 1-LA

CHP-1 CHP-2 CHP-3 CHP-4

PUMP VFDs

C H

E

L E

C

S

W I T

C H

E S

PUMP ELEC SWITCHES

CH-3

(E) CH-1

E-102

JMTM

ELECTRICAL POWER PLAN

SCALE:

" = 1'-0"

0 2' 4' 12'8'

NORTH

SCALE:

" = 1'-0"

ELECTRICAL POWER PLAN

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMP

321 4 5 6 7 8 9 10

REPLACE CHILLERS AT

ENERGY CENTER

BONHAM, TEXAS

Project Director

Revisions:

549-20-700

Approved: Project Director2340 E. TRIN ITY MILLS, STE. 220

CARROLLTON, TX 75006

972-233-2288

O'Brien Engineering, Inc.

Mr. Byron Rowland, COR Sam Rayburn Memorial Veterans Center Bonham, TX 75418

TEXAS P.E. NO. 68486

TIMOTHY J. MUECK

INTERIM REVIEW AND ARE NOT

INTENDED FOR CONSTRUCTION,

BIDDING, OR PERMIT PURPOSES.

DATE: 12 APRIL 2021

THESE DOCUMENTS ARE FOR

www.obrieneng.com

TEXAS ENGINEERING FIRM F-3758

ISSUE FOR BIDCONSULTANT

Revisions: Date:

FULLY SPRINKLERED

04.27.2021

KEYED NOTES:

1. CONTRACTOR SHALL INSTALL NEW WIRING WITH NEW

CHILLER. INSTALL WIRES, CONDUITS,SWITCHES, SENSORS,

INSTRUMENTATION, AND CIRCUIT BREAKERS FOR SYSTEM

FUNCTION.

2. CONTRACTOR SHALL INSTALL ALL NEW WIRING WITH NEW

75 HP PUMPS. INSTALL WIRES, CONDUITS, SWITCHES,

SENSORS, INSTRUMENTATION, AND CIRCUIT BREAKERS

FOR PUMP / MOTOR TO FUNCTION.

3. INSTALL NEW VFDs FOR CHILLER AND PUMPS.

4. EXISTING ELECTRICAL GEAR PRESENTLY SERVING

CHILLERS AND PUMPS. INSTALL 125 AMP/3 PHASE CIRCUIT

BREAKER FOR CHP-4.

GENERAL NOTES:

1. REFER TO SHEET E-001 FOR GENERAL ELECTRICAL NOTES

& ABBREVIATIONS FOR THIS PROJECT.

2. INSTALL IN ACCORDANCE WITH THE NATIONAL ELECTRICAL

CODE (NFPA 70).