Attachment D.8 Drawings 8 of 10 (6 Pages).pdf

TS

TS

KEY NOTES:

GENERAL NOTES:

T S

T S

TS

TS

TS T

S

T S

TS

FFGG

M.C

M.B

REFER TO DETAIL

2/1356-PP106 FOR

VALVE LOCATION.

30 REFER TO DETAIL

1/1356-PP107 FOR

VALVE LOCATION.

5" CW

8" CW

8" CW

8" CW

8" CW

DRAIN

1 1/2" CW

BW.B

BW.C

BW.A

CONNECTION

TO PREVIOUS

PHASE.

8" CW

TO BE

REPLACED

IN NEXT

PHASE

5" CW UP

5" CW UP

4" HW UP

2" RHW UP

3" CW

5" CW

5" CW

2 1/2" HW

2" RHW

M.C

M.A

M.B

8" CW

4" HW

2 1/2" RHW

2 1/2" CW

1 1/2" HW

3/4" RHW

NOTE THAT THESE KEY NOTES ARE SPECIFIC TO THIS DRAWING (DO

NOT REFER TO MASTER KEY NOTES ON SHEET 1356-PP003). NOT ALL

KEY NOTES ARE UTILIZED AND MAY HAVE GAPS OF MISSING NOTE

NUMBERS TO KEEP GROUPS OF TEN NOTES AVAILABLE PER PHASE.

SHUT-OFF VALVE BW.C AND VALVE #M.B TO ISOLATE SECTION OF

PIPING INDICATED FOR REMOVAL. REFER TO GENERAL NOTES FOR

PROVISIONS TO BE TAKEN TO VERIFY ANY EXISTING VALVE LEAKAGE.

ONCE ISOLATED, REMOVE SECTION OF 8" GALVANIZED PIPING LOOP.

CUT INTO SECTIONS SMALL ENOUGH TO TRANSPORT TO LOADING

DOCK AREA FOR REMOVAL. INCLUDE DEMOLITION OF EXISTING

SUPPORTS MOUNTED TO PIPING RACKS, NEW PIPING WILL BE

SUPPORTED ONTO EXISTING RACK STRUCTURE BUT SHOULD BE

PROVIDED WITH NEW PIPE CLAMPS.

NOT USED THROUGH KEY NOTE

INSTALL NEW SECTION OF 8" SCHEDULE 10 STAINLESS STEEL PIPING TO

REPLACE PREVIOUSLY REMOVED. INSTALL IN EXACT SAME LOCATION

AS REMOVED SECTION OF PIPING. PROVIDE NEW SUPPORT CLAMPS

ON EXISTING PIPING RACK AS REQUIRED.

PROVIDE TEMPORARY END CAPS AT EITHER SIDE OF NEW PIPING

SECTION. FIRST PERFORM A PRESSURE TEST ON PIPING SECTION PER

SPECIFICATION REQUIREMENTS, AND THEN STERILIZE PIPING USING

CHLORINE SOLUTION FOR AT LEASE 24 HOURS PRIOR TO FLUSHING.

INCLUDE DRAIN/FILL VALVES ON EITHER END TO ACCOMPLISH.

INSULATE ENTIRE LENGTH OF PIPING PER SPECIFICATION

REQUIREMENTS. INCLUDE CONTINUOUS PVC COVERING THROUGHOUT

AND PREPARE ENDS FOR EXTENSION TO NEXT SUB-PHASE PIPING

WHICH WILL INCLUDE INSULATING ALL VALVE BODIES.

NOT USED THROUGH KEY NOTE

SHUT-OFF VALVE #BW.C AND VALVE #BP.B (BOTH FURTHER OUT TO

NEXT ADJACENT RISER VALVES OUTSIDE THE EXTENTS OF THIS PHASE

DRAWING) TO ISOLATE THIS RISER M FOR VALVE REPLACEMENT.

REFER TO GENERAL NOTES FOR PROVISIONS TO BE TAKEN TO VERIFY

ANY EXISTING VALVE LEAKAGE AND AREAS THAT WILL BE AFFECTED BY

THIS MAJOR WATER OUTAGE.

ONCE RISER IS ISOLATED, REPLACE THE TWO(2) 8" VALVES ON EITHER

SIDE OF COLD WATER RISER TAKE-OFF VALVE WITH NEW STAINLESS 8"

TRIPLE OFFSET BUTTERFLY VALVES AND ALSO REPLACE THE THIRD

EXISTING 5" TAKE OFF VALVE WITH THE SAME MODEL VALVE AS MAIN

LOOP. INCLUDE A 1.5" STAINLESS STEEL BALL VALVE FOR DRAINING

RISER IN SECTION OF PIPING BETWEEN THESE THREE VALVES (ALSO

UTILIZE THIS OUTAGE TO CHANGE THAT SECTION OF PIPING WITH SCH

40 STAINLESS STEEL - NO STERILIZING REQUIRED TO SHORTEN

OUTAGE DURATION, BUT STILL THOROUGHLY FLUSH).

DURING OUTAGE, INSTALL THERMOWELLS ON BOTH HOT AND COLD

WATER MAINS TO ACCEPT AN INSERTION TYPE TEMPERATURE SENSOR

TO BE INTEGRATED INTO BUILDING AUTOMATION SYSTEM FOR

INFORMATION MONITORING AND TRENDING.

INSTALL STRAP ON TEMPERATURE SENSORS INDICATE ON

RECIRCULATION PIPING. REPAIR ANY DAMAGED OR REMOVED

INSULATION ON COMPLETION.

ONCE VALVE INSTALLATION IS COMPLETED, INSULATE ALL AFFECTED

PIPING AND NEW VALVE BODIES COMPLETELY. COVER EVERYTHING

WITH PVC JACKET COVERS AND SEAL AS REQUIRED. INSULATION CAN

OCCUR DURING NORMAL HOURS AFTER OUTAGE COMPLETION, BUT

SHOULD NOT BE DELAYED FOR ANY MORE THAN 3 BUSINESS DAYS.

PHASE 6.1 (DEMO - REFER TO DETAIL 1 AND 10-19 SERIES KEY NOTES):

THE EXISTING GALVANIZED 8" COLD WATER PIPING MAIN TO BE REMOVED

BETWEEN INTERIOR VALVES OF RISERS INDICATED IN KEY NOTES. REFER

TO WORK SEQUENCE DESCRIBED IN 'ISOLATION OF MAIN PIPING LOOP

SECTIONS' BELOW TO EITHER CONFIRM EXISTING VALVES DO NOT LEAK, OR

FOLLOW GUIDELINE PROVISIONS TO BE TAKEN IF THEY ARE FOUND

DEFECTIVE. NO OUTAGES WILL BE REQUIRED DURING THIS SUB-PHASE

WITH MAIN LOOP CONTINUALLY SERVING BOTH SIDES.

PHASE 6.2 (BUILD-BACK - REFER TO DETAIL 2 AND 20-29 SERIES KEY NOTES):

INSTALL NEW PIPING IN SAME LOCATION AS REMOVED SECTION OF 8" COLD

WATER MAIN. MAY REUTILIZE EXISTING PIPING RACK FOR PIPING

SUPPORTS. REFER TO KEY NOTES FOR ADDITIONAL INFORMATION RELATED

TO INSTALLATION.

PHASE 6.3 (RISER VALVE REPLACEMENT - 30+ SERIES KEY NOTES):

AREA SHOWN IN EXPANDED 1/4" = 1'-0" PLAN VIEW SHALL HAVE BOTH 8"

ISOLATION VALVES REPLACED WITH NEW TRIPLE OFFSET BUTTERFLY

VALVES. PLAN FOR OUTAGE OF RISER M AND REPLACE EXISTING 5" TAKE-

OFF VALVE AT SAME TIME. INCLUDE 1.5" DRAIN VALVE AT INTERSECTION

BETWEEN THREE(3) REPLACED VALVES. THIS SUB-PHASE WILL CAUSE A

LARGE DOMESTIC WATER OUTAGE FOR AREAS OF FACILITY THAT MAY BE

CRITICAL, CONTRACTOR SHALL REFER TO 'ALLOWANCE FOR TEMP

FIXTURES OR WATER SERVICES' BELOW FOR ACCOMMODATIONS NEEDED

FOR THOSE AREAS. OUTAGE WILL AFFECT THE FOLLOWING DEPARTMENTS

AND SHOULD BE CAREFULLY COORDINATED WITH VA FACILITIES;

• BASEMENT LEVEL: MECHANICAL ROOM BQ, SAFETY DIRECTOR'S

OFFICE, ENGINEERING, EDUCATION, PHARMACY, INPATIENT, MEDICAL

MEDIA, MAS, SPD, ACS (SPECIALTY) - WARFARIN, NUCLEAR MEDICINE -

PET SUITE

• FIRST FLOOR: ACS - URGENT CARE AND PRIMARY CARE, EDUCATION,

NUTRITION/FOOD SERVICE, VETERANS ASSISTANCE SERVICE

ORGANIZATIONS, RADIOLOGY, PHARMACY OUTPATIENT

• SECOND FLOOR: MECHANICAL ROOM 2B; ACS (SPECIALTY) - EYE,

UROLOGY; VOLUNTARY SERVICE; MEDICAL RESEARCH - BRAIN SCIENCE;

VETERANS ASSISTANCE/SERVICE ORGANIZATIONS; ON-CALL; SURGERY -

OR, AMBULATORY; PATHOLOGY; IRM SERVICE; SURGERY - EXAM.

• THIRD FLOOR: MECHANICAL ROOM 3B, ACS (SPECIALTY) - GI CLINIC,

PRIMARY CARE MED OFFICES, EDUCATION, REHABILITATION MEDICAL

SERVICE, MEDICAL RESEARCH, CHRONIC DISEASE CLINIC

• FOURTH FLOOR: DIRECTOR'S SUITE, EDUCATION, MEDICAL RESEARCH,

ISOLATION OF MAIN PIPING LOOP SECTIONS:

PERFORM THE FOLLOWING PROCEDURE STEPS TO PROPERLY ISOLATE

EACH SECTION OF PIPING LOOP AS DESCRIBED IN PHASING SEQUENCES,

1) SHUT-OFF ISOLATION VALVES ON INTERIOR SIDE OF LOOP BEING

MODIFIED OR REMOVED TO MAINTAIN SERVICES TO ALL RISERS.

2) REMOVE SECTION OF PIPING, OR TAP TEMPORARY DRAIN CONNECTION

TO VERIFY VALVES ARE HOLDING FOR A MINIMUM PERIOD OF 24 HOURS.

3) IF NO VALVE LEAKAGE, OR MINIMAL AMOUNT, IS WITNESSED THAN

PROCEED TO PIPING MODIFICATION AND/OR DEMOLITION SCOPE OF WORK

IDENTIFIED.

4) IF MODERATE OR SIGNIFICANT VALVE LEAKAGE IS WITNESSED THAN

PROVIDE 1.5" VALVE TAP WITH THREADED CONNECTION TO HOSE TO

NEAREST MECHANICAL ROOM DRAIN DISCHARGE LOCATION. THIS

TEMPORARY DRAIN CONNECTION AND HOSE SHALL BE REMOVED ONCE

NEW RISER VALVE REPLACEMENTS ARE COMPLETED.

---CONTRACTOR WILL BE RESPONSIBLE TO KEEP ON SITE AT LEAST FOUR(4)

SETS OF 1.5" VALVES WITH THREADED CONNECTIONS AND TWO(2) 250' LONG

HOSES OF 1.5" DIAMETER IN SIZE.

CONTRACTOR ALLOWANCE FOR TEMP FIXTURES OR WATER SERVICES:

ASSUME THAT DURING THE COURSE OF THE 8 PHASE DOMESTIC WATER

LOOP REPLACEMENT THAT SPECIFIC AREAS WILL REQUIRE TEMPORARY

SINKS AND/OR EXTENSION OF TEMPORARY WATER SERVICES TO THEIR

DEPARTMENT. CONTRACTORS SHALL INCLUDE THE FOLLOWING

ALLOWANCES WITHIN THEIR BASE BID TO ACCOMMODATE THOSE

REQUESTS WHEN THEY ARISE DURING OUTAGE COORDINATION WITH VA

FACILITIES.

• INCLUDE UP TO TWELVE(12) TEMPORARY SINK FIXTURES TIED INTO AN

ADJACENT RISER SERVICE. EACH SINK WILL REQUIRE UP TO 50' OF

COPPER PIPE FOR WATER CONNECTIONS, OTHERWISE HOSE WILL BE

UTILIZED IF DISTANCE EXCEEDS THAT SPECIFIED AMOUNT OF PIPING.

• INCLUDE FOUR(4) TEMPORARY BACK-UP WATER CONNECTIONS FOR

COLD WATER SERVICE TO AN ENTIRE DEPARTMENT. TEMPORARY COLD

WATER MAIN SHALL BE ASSUMED AT 2" SIZE AND EXTEND A MAXIMUM OF

250' TO CONNECT INTO AN ADJACENT RISER SERVICE.

• NOTE THAT THE ABOVE IS FOR ENTIRE PROJECT, NOT PER PHASE.

ZAABBCCDDEEFFGG

STACKED

STACKED

STACKED

STACKED

BW.C

BW.B

BW.A

M.B

M.A'

M.C

ZAABBCCDDEEFFGG

RISER M

STACKED

STACKED

20 202122

2221 22

1356-PP106.1

BW.C

BW.A

BW.B

M.C

M.B

1356-PP106.1

1356-PP106.1

REFER TO PHASE 7.1 FOR

DEMO OF OLD PIPING.

8" CW

C W

C W

4" HW

8" CW

2 1/2" CHW

4" PC

10" HPS

8" CHWS

8" CHWR

FF

2 1/2" RHW

4" HW

8" CW

3/4" CW

2 1/2" PC

3" HWR

2 1/2" HWS

5" MPS2" MPC

4" CHWR

4" CHWS

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

CONSTRUCTION

DOCUMENTS SUBMISSION

FULLY SPRINKLERED

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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANT

321 4 5 6 7 8 9 10

TRUE NORTH

PLAN NORTH

A

C R e v it P ro je c ts

\V A

B u ild in g

P h a s e

M e c h a n ic a l ja s o n g o tt w a lt

.r v t

/3 /2

:4

:0

A M

BASEMENT INTERSTITIAL - PHASE

6 - DOMESTIC WATER PLAN

PREVENT LEGIONELLA,

PHASE III

MINNEAPOLIS

618-14-118

11/30/2022 JG TM / JG618-14-118

1356-PP106.1

1/4" = 1'-0"

ENLARGED - PHASE 6.3

NO SCALE

PHASE 6 - ISOMETRIC VIEW

1/16" = 1'-0"

PHASE 6.1 - DEMO

1/16" = 1'-0"

PHASE 6.2 - NEW

NO SCALE

PHASE 6 ELEVATION - NORTH TUNNEL

NO SCALE

PHASE 6 ELEVATION - WEST INTERSTITIAL

41360DATE REG. NO.

I HEREBY CERTIFY THAT THIS PLAN,

SPECIFICATION OR REPORT WAS PREPARED BY ME

OR UNDER MY DIRECT SUPERVISION AND THAT I

AM A DULY LICENSED PROFESSIONAL ENGINEER

UNDER THE LAWS OF THE STATE OF MINNESOTA.

JASON GOTTWALT, P.E.

11/30/2022

Revisions: Date:

T

STS

TS

TS

T S

T S

T S

KEY NOTES:GENERAL NOTES:

EEFF

RISER M

5" CW

5" CW

2" RHW

2 1/2" HW

8" CW

8" CW

5" CW UP

5" CW UP

2" RHW UP

4" HW UP

3" CW

EEFF

8" CW

8" CW

5" CW

5" CW

2" RHW

2 1/2" HW

5" CW UP

5" CW UP

2" RHW UP

4" HW UP

3" CW

EE

4" HW UP & DN

5" CW UP & DN

5" CW UP & DN

2" RHW DN

1 1/2" RHW UP

3" CW

EE

4" HW UP & DN

5" CW UP & DN

5" CW UP & DN

2" RHW DN

1 1/2" RHW UP

3" CW

EE

1 1/2" RHW DN

1 1/4" RHW UP

4" HW DN

3" HW UP

5" CW DN

4" CW UP

5" CW DN

4" CW UP

4" CW

EE

1 1/4" RHW UP

1 1/2" RHW DN

3" HW UP

4" HW DN

5" CW DN

4" CW UP

5" CW DN

4" CW UP

4" CW

EE

1 1/4" RHW DN

3/4" RHW UP

2 1/2" HW UP

3" HW DN

4" CW UP & DN

4" CW UP & DN

3 1/2" CW

EE

1 1/4" RHW DN

3/4" RHW UP

3" HW DN

2 1/2" HW UP

4" CW UP & DN

4" CW UP & DN

3 1/2" CW

EE

3/4" RHW DN

2 1/2" HW DN

4" CW DN

4" CW DN

2 1/2" CW

2" CW

EE

4" CW DN

4" CW DN 2 1/2" HW DN

3/4" RHW DN

2" CW

2 1/2" CW

1 BEFORE OUTAGE: ROUTE NEW RISER "M" PIPING PARALLEL TO

EXISTING PIPING TO LEVEL ABOVE. NOTE THAT THERE IS AN

EXISTING ABANDONED 5" COPPER PIPE IN PLACE THAT WILL NEED TO

BE DEMOLISHED AND RECYCLED. CONTRACTOR MAY USE THIS

ROUTING FOR NEW STAINLESS STEEL COLD WATER MAIN UP TO BASE

OF RISER.

DURING OUTAGE: REMOVE AND REPLACE MAIN PIPING BETWEEN

VALVES M.B AND M.C. MAKE FINAL CONNECTION TO NEW RISER "M"

PIPING. ABANDON EXISTING COLD WATER RISER PIPING TO BE

DEMOLISHED AFTER ALL RISER "M" FINAL CONNECTIONS ARE MADE

AND OUTAGE IS COMPLETE. CONTRACTOR TO VERIFY PIPE SIZING

AND OUTAGE AREAS PRIOR TO CONSTRUCTION.

AFTER OUTAGE: REFER TO ASSOCIATED LEVEL DEMOLITION VIEW

AND KEY NOTE 2.

AFTER OUTAGE: REMOVE ABANDONED COLD WATER RISER PIPING.

DEADLEG OR ABANDONED PIPING SHALL NOT REMAIN.

MAIN PIPING DEMOLITION INDICATED IS TO OCCUR IN THE NEXT

PHASE. REFER TO 1/1356-PP107.1.

BEFORE OUTAGE: ROUTE NEW RISER "M" PIPING PARALLEL TO

EXISTING PIPING TO LEVEL ABOVE. EXTEND NEW TAKEOFFS TO

EXISTING BRANCH TAKEOFFS AND PREPARE FOR NEW CONNECTION.

DURING OUTAGE: DISCONNECT EXISTING BRANCH TAKEOFFS AND

REMOVE TAKEOFF PIPING. MAKE TAKEOFF FINAL CONNECTIONS.

ABANDON EXISTING COLD WATER RISER PIPING TO BE DEMOLISHED

AFTER ALL RISER "M" FINAL CONNECTIONS ARE MADE AND OUTAGE IS

COMPLETE. CONTRACTOR TO VERIFY PIPE SIZING AND OUTAGE

AREAS PRIOR TO CONSTRUCTION.

AFTER OUTAGE: REFER TO ASSOCIATED LEVEL DEMOLITION VIEW

AND KEY NOTE 2.

A.

B.

C.

D.

E.

F.

THE OUTLINE OF 'MEANS-AND-METHODS' NOTES BELOW FOR VERTICAL

COLD WATER RISER REPLACEMENTS INDICATED WITHIN THESE

DRAWINGS IS NOT INTENDED TO BE ALL-INCLUSIVE OF EFFORT

REQUIRED BY CONTRACTOR. NOR ARE THESE NOTES AND/OR

SUGGESTIONS MEANT TO LIMIT CONTRACTORS FROM DEVELOPING

THEIR OWN APPROACH THAT MAY BE CONSIDERED MORE COST

EFFECTIVE OR SAFE. THESE NOTES ARE MAINLY MEANT TO QUALIFY

EXISTING CONDITIONS AND DEFINE MINIMUM LEVEL OF PLANNING

REQUIRED BY VA FOR EACH OF THESE TIME SENSITIVE OUTAGES.

NO MAJOR WATER OUTAGE SHALL LAST MORE THAN 12 HOURS IN

DURATION. PLUMBING CONTRACTOR TO DETERMINE ADEQUATE

NUMBER OF PLUMBER CREWS REQUIRED TO PERFORM MULTIPLE

TASKS SIMULTANEOUSLY DURING OUTAGES. ALL OUTAGES SHALL BE

ASSUMED TO BE PERFORMED DURING WEEKEND OR NIGHT OVERTIME

HOURS WHEN BIDDING THIS PROJECT.

VERTICAL RISER REPLACEMENT (TYPE 1 - WITHIN MECHANICAL ROOM)

• FOR RISERS WITHIN MECHANICAL ROOMS, CONTRACTOR SHALL

CORE DRILL HOLES THROUGH FLOOR ADJACENT TO EXISTING

PLUMBING RISER FOR NEW INSTALLATION. EXISTING FLOOR

PENETRATIONS AND/OR SLEEVE SHALL BE PATCHED FLUSH TO

EXISTING FLOOR AS REQUIRE UPON DEMOLITION OF THOSE RISERS.

• EXISTINGT TAKE-OFF VALVES MAY REQUIRE RELOCATION FOR

CONNECTION INTO NEW RISER. VERIFY ADEQUATE ACCESS TO ALL

TAKE-OFF VALVES AND PROVIDE WITH NEW LAMINATE SIGNAGE.

ANY VALVES FOUND AT INACCESSIBLE LOCATIONS SHALL BE

RELOCATED BY CONTRACTOR.

• REFER TO CLIN 3001 FOR REPLACEMENT OF ALL ICRCUIT SETTER

VALVES WITHIN ENTIRE BUILDING. PLUMBING CONTRACTOR MAY

OPT TO HAVE DEDICATED CREWS ASSIGNED TO THIS TASK DURING

RISER OUTAGE TO LIMIT NUMBER OF SECONDARY OUTAGES

REQUIRED. HOWEVER, IF ENOUGH PLUMBERS ARE AVAILABLE TO

ACHIEVE THIS DURING LIMITED OUTAGE TIMEFRAME, THAN REFER

TO GENERAL NOTES ON DRAWING PP002 FOR 'LARGE OUTAGES' TO

PERFORM PRIOR TO THE MAJOR RISER OUTAGE.

VERTICAL RISER REPLACEMENT (TYPE 2 - WITHIN ENCLOSED SHAFT)

• IN GENERAL, MAJOR RATED SHAFTS SHOWN IN THESE DRAWINGS

HAVE EXISTING FULL SIZED ACCESS DOOR FROM BASE OF SHAFT

ON FIRST FLOOR LEVEL. HOWEVER, THAT IS TYPICALLY THE ONLY

ACCESS INTO THESE SHAFTS THAT ARE FULLY OPEN (NO

INTERMEDIATE FLOOR STRUCTURES) UP THROUGH PENTHOUSE

LEVEL WHERE RATED WALLS ARE BUILT-UP WITH LID (TYPICALLY

12'+) WITHIN ENCLOSED PENTHOUSE LEVEL.

• IN ORDER TO GAIN ACCESS TO TOP OF SHAFT, CONTRACTOR WILL

BE REQUIRED TO FURNSIH AND INSTALL FIRE RATED DOOR

ASSEMBLIES FROM PENTHOUSE LEVEL. THESE DOORS MAY BE

USED IN CONJUCTION OF RIGGING FOR BOSUN CHAIRS FROM TOP

OF SHAFT IF CONTRACTOR DEEMS THAT AS SAFE AFTER REVIEW

WITH THEIR INTERNAL SAFETY OFFICIAL.

• IN ADDITION TO ACCESS ON TOP LEVEL OF SHAFT, CONTRACTOR

WILL HAVE OPPORTUNITIES TO INSTALL 24"X24" OR 48"X24" FIRE

RATED ACCESS PANELS ON ANY OTHER LEVEL REQUIRED (BUT

ONLY FROM INTERSTITIAL SPACE, INSTALLATION OF ACCESS

PANELS FROM PATIENT CARE AREAS WILL NOT BE PERMITTED).

• CONTRACTOR WILL BE REQUIRED TO PROVIDE THEIR OWN

SCAFFOLDING REQUIRED AT EACH LEVEL TO INSTALL NEW COLD

WATER RISERS ADJACENT TO EXISTING PRIOR TO SIOWTCHOVER

OUTAGE. SCAFFOLDS SHOULD BE STRATEGICALLY PLACE TO

ALLOW ACCESS FOR RECONNECTION TO FLOOR TAKE-OFF PIPING

INSIDE OF EACH SHAFT.

• EXISTING CONDITION PDF SKETCHES ARE PROVIDED ON DRAWINGS

WHERE WORK INSIDE CONFINED AREAS OF RATED SHAFTS IS

REQUIRED. THESE SKETCHES ARE FOR CONTRACTOR REFERENCE

ONLY AND MAY NOT FULLY INDICATE ALL SERVICES WITHIN SHAFT

ENCLOSURES. CONTRACTOR WILL BE REQUIRED TO FIELD VERIFY

ACTUAL SITE CONDITIONS OF EACH SHAFT WHILE DEVELOPING

ACCESS AND SAFETY PLANNING.

NOTE THAT SOME AREAS HAVE EXISTING COPPER MAINS INTENDED TO

REPLACE GALVANIZED RISERS. HOWEVER THESE MAINS WERE

INSTALLED UP TO 15-25 YEARS AGO AND THEIR INTEGRITY IS

QUESTIONABLE. CONTRACTOR MAY UTILIZE THE EXISTING ROUTE, AND

CORRESPONDING SUPPORT HANGERS, BUT MUST FULLY REMOVE ALL

ABANDONED/UNUSED COPPER PIPING MAINS. ONCE OFF SITE THE

CONTRACTOR MAY TAKE OWNERSHIP OF PIPING FOR RECYLCING OR

REPURPOSING, BUT IT SHALL NOT BE UTILIZED WITHIN THIS PROJECT.

NO EXISTING PIPING WILL BE ALLOWED TO BE LEFT ABANDONED. SOME

AREAS HAVE RESTRICITVE ACCESS DUE TO SURROUNDING PIPES

AND/OR STRUCTURE AND MAY REQUIRE TEMPORARY REMOVAL OF

PIPING OR DUCTWORK TO GAIN ACCESS FOR DEMOLITION.

CONTRACTOR TO ASSUME SOME LEVEL OF DISCONNECT/RECONNECT

OF EXISTING SERVICES TO GAIN ACCCESS FOR COMPLETE DEMOLITION

OF EXISTING PIPING, OR INSTALLATION OF NEW PIPE IN CONGESTED

AREAS. REFER TO DRAWING NOTES FOR ADDITIONAL INFORMATION.

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

CONSTRUCTION

DOCUMENTS SUBMISSION

FULLY SPRINKLERED

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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANT

321 4 5 6 7 8 9 10

TRUE NORTH

PLAN NORTH

A

C R e v it P ro je c ts

\V A

B u ild in g

P h a s e

M e c h a n ic a l ja s o n g o tt w a lt

.r v t

/3 /2

:4

:0

A M

ALL LEVELS - PHASE 6 -

ENLARGED RISER "M" COLD

WATER REPLACEMENT PLANS

PREVENT LEGIONELLA,

PHASE III

MINNEAPOLIS

618-14-118

11/30/2022 JG TM / JG618-14-118

1356-PP106.2

1/8" = 1'-0"

BASEMENT - RISER M REPLACEMENT DEMO

1/8" = 1'-0"

BASEMENT - RISER M REPLACEMENT NEW

1/8" = 1'-0"

FIRST LEVEL - RISER M REPLACEMENT DEMO

1/8" = 1'-0"

FIRST LEVEL - RISER M REPLACEMENT NEW

1/8" = 1'-0"

SECOND LEVEL - RISER M REPLACEMENT DEMO

1/8" = 1'-0"

SECOND LEVEL - RISER M REPLACEMENT NEW

1/8" = 1'-0"

THIRD LEVEL - RISER M REPLACEMENT DEMO

1/8" = 1'-0"

THIRD LEVEL - RISER M REPLACEMENT NEW

1/8" = 1'-0"

FOURTH LEVEL - RISER M REPLACEMENT DEMO

1/8" = 1'-0"

FOURTH LEVEL - RISER M REPLACEMENT NEW

41360DATE REG. NO.

I HEREBY CERTIFY THAT THIS PLAN,

SPECIFICATION OR REPORT WAS PREPARED BY ME

OR UNDER MY DIRECT SUPERVISION AND THAT I

AM A DULY LICENSED PROFESSIONAL ENGINEER

UNDER THE LAWS OF THE STATE OF MINNESOTA.

JASON GOTTWALT, P.E.

TS

TS

TS

TS

KEY NOTES:GENERAL NOTES:

TS

TS

TS

TS

TS

TS

TS

TS

TS

TS

FF

7.B

7.C

REFER TO DETAIL

1/1356-PP108.1 FOR

VALVE LOCATION.

REFER TO DETAIL

2/1356-PP107 FOR

VALVE LOCATION.

4" CW

1356-PP107.1

BP.A

BP.C

BP.B

7.A

4" CW

C W

H W

H W

3/4"

8" CW

2" HW

/2

/2

M.A

M.C

M.B

CONNECTION

TO PREVIOUS

PHASE.

TO BE

DEMOLISHED

IN NEXT

PHASE

8" CW

7.C

7.A

7.B

4" CW

BP.B

BP.C

BP.A

8" CW

3.C

3.B 3.A

NOTE THAT THESE KEY NOTES ARE SPECIFIC TO THIS DRAWING (DO

NOT REFER TO MASTER KEY NOTES ON SHEET 1356-PP003). NOT ALL

KEY NOTES ARE UTILIZED AND MAY HAVE GAPS OF MISSING NOTE

NUMBERS TO KEEP GROUPS OF TEN NOTES AVAILABLE PER PHASE.

SHUT-OFF VALVE M.C AND VALVE 3.B TO ISOLATE SECTION OF PIPING

INDICATED FOR REMOVAL. REFER TO GENERAL NOTES FOR

PROVISIONS TO BE TAKEN TO VERIFY ANY EXISTING VALVE LEAKAGE.

ONCE ISOLATED, REMOVE SECTION OF 8" GALVANZED PIPING LOOP.

CUT INTO SECTIONS SMALL ENOUGH TO TRANSPORT TO LOADING

DOCK AREA FOR REMOVAL. INCLUDE DEMOLITION OF EXISTING

SUPPORTS MOUNTED TO PIPING RACKS, NEW PIPING WILL BE

SUPPORTED ONTO EXISTING RACK STRUCTURE BUT SHOULD BE

PROVIDED WITH NEW PIPE CLAMPS.

NOT USED THROUGH KEY NOTE

INSTALL NEW SECTION OF 8" SCHEDULE 10 STAINLESS STEEL PIPING TO

REPLACE PREVIOUSLY REMOVED. INSTALL IN EXACT SAME LOCATION

AS REMOVED SECTION OF PIPING. NOTE THAT THIS SECTION IS

ROUTED THROUGH INTERSTITIAL AND/OR ABOVE SHOPS AREAS.

PROVIDE TEMPORARY END CAPS AT EITHER SIDE OF NEW PIPING

SECTION. FIRST PERFORM A PRESSURE TEST ON PIPING SECTION PER

SPECIFICATION REQUIREMENTS, AND THEN STERILIZE PIPING USING

CHLORINE SOLUTION FOR AT LEASE 24 HOURS PRIOR TO FLUSHING.

INCLUDE DRAIN/FILL VALVES ON EITHER END TO ACCOMPLISH.

INSULATE ENTIRE LENGTH OF PIPING PER SPECIFICATION

REQUIREMENTS. INCLUDE CONTINUOUS PVC COVERING THROUGHOUT

AND PREPARE ENDS FOR EXTENSION TO NEXT SUB-PHASE PIPING

WHICH WILL INCLUDE INSULATING ALL VALVE BODIES.

NOT USED THROUGH KEY NOTE

SHUT-OFF VALVE 3.C AND VALVE 7.B TO ISOLATE SECTION OF PIPING

INDICATED FOR REMOVAL. REFER TO GENERAL NOTES FOR

PROVISIONS TO BE TAKEN TO VERIFY ANY EXISTING VALVE LEAKAGE.

ONCE ISOLATED, REMOVE SECTION OF 8" GALVANZED PIPING LOOP.

CUT INTO SECTIONS SMALL ENOUGH TO TRANSPORT TO LOADING

DOCK AREA FOR REMOVAL. INCLUDE DEMOLITION OF EXISTING

SUPPORTS MOUNTED TO PIPING RACKS, NEW PIPING WILL BE

SUPPORTED ONTO EXISTING RACK STRUCTURE BUT SHOULD BE

PROVIDED WITH NEW PIPE CLAMPS.

NOT USED THROUGH KEY NOTE

INSTALL NEW SECTION OF 8" SCHEDULE 10 STAINLESS STEEL PIPING TO

REPLACE PREVIOUSLY REMOVED. INSTALL IN EXACT SAME LOCATION

AS REMOVED SECTION OF PIPING. NOTE THAT THIS SECTION IS

ROUTED THROUGH INTERSTITIAL AND/OR ABOVE SHOPS AREAS.

PROVIDE TEMPORARY END CAPS AT EITHER SIDE OF NEW PIPING

SECTION. FIRST PERFORM A PRESSURE TEST ON PIPING SECTION PER

SPECIFICATION REQUIREMENTS, AND THEN STERILIZE PIPING USING

CHLORINE SOLUTION FOR AT LEASE 24 HOURS PRIOR TO FLUSHING.

INCLUDE DRAIN/FILL VALVES ON EITHER END TO ACCOMPLISH.

INSULATE ENTIRE LENGTH OF PIPING PER SPECIFICATION

REQUIREMENTS. INCLUDE CONTINUOUS PVC COVERING THROUGHOUT

AND PREPARE ENDS FOR EXTENSION TO NEXT SUB-PHASE PIPING

WHICH WILL INCLUDE INSULATING ALL VALVE BODIES.

NOT USED THROUGH KEY NOTE

SHUT-OFF VALVE M.C AND VALVE J.B (BOTH FURTHER OUT TO NEXT

ADJACENT RISER VALVES OUTSIDE THE EXTENTS OF THIS PHASE

DRAWING) TO ISOLATE SHAFT 7 FOR VALVE REPLACEMENT. REFER TO

GENERAL NOTES FOR PROVISIONS TO BE TAKEN TO VERIFY ANY

EXISTING VALVE LEAKAGE AND AREAS THAT WILL BE AFFECTED BY

THIS MAJOR WATER OUTAGE.

ONCE RISER IS ISOLATED, REPLACE THE TWO(2) 8" VALVES ON EITHER

SIDE OF COLD WATER RISER TAK-OFF VALVE WITH NEW STAINLESS 8"

TRIPLE OFFSET BUTTERFLY VALVES AND ALSO REPLACE THE THIRD

EXISTING 4" TAKE OFF VALVE WITH THE SAME MODEL VALVE AS MAIN

LOOP. INCLUDE A 1.5" STAINLESS STEEL BALL VALVE FOR DRAINING

RISER IN SECTION OF PIPING BETWEEN THESE THREE VALVES (ALSO

UTILIZE THIS OUTAGE TO CHANGE THAT SECTION OF PIPING WITH SCH

40 STAINLESS STEEL - NO STERILIZING REQUIRED TO SHORTEN

OUTAGE DURATION, BUT STILL THOROUGHLY FLUSH).

ONCE RISER IS ISOLATED, REPLACE THE TWO(2) 8" VALVES ON EITHER

SIDE OF COLD WATER RISER TAK-OFF VALVE WITH NEW STAINLESS 8"

TRIPLE OFFSET BUTTERFLY VALVES AND ALSO REPLACE THE THIRD

EXISTING 6" TAKE OFF VALVE WITH THE SAME MODEL VALVE AS MAIN

LOOP. INCLUDE A 1.5" STAINLESS STEEL BALL VALVE FOR DRAINING

RISER IN SECTION OF PIPING BETWEEN THESE THREE VALVES (ALSO

UTILIZE THIS OUTAGE TO CHANGE THAT SECTION OF PIPING WITH SCH

40 STAINLESS STEEL - NO STERILIZING REQUIRED TO SHORTEN

OUTAGE DURATION, BUT STILL THOROUGHLY FLUSH).

DURING OUTAGE, INSTALL THERMOWELLS ON BOTH HOT AND COLD

WATER MAINS TO ACCEPT AN INSERTION TYPE TEMPERATURE SENSOR

TO BE INTEGRATED INTO BUILDING AUTOMATION SYSTEM FOR

INFORMATION MONITORING AND TRENDING.

INSTALL STRAP ON TEMPERATURE SENSORS INDICATE ON

RECIRCULATION PIPING. REPAIR ANY DAMAGED OR REMOVED

INSULATION ON COMPLETION.

ONCE VALVE INSTALLATION IS COMPLETED, INSULATE ALL AFFECT

PIPING AND NEW VALVE BODIES COMPLETELY. COVER EVERYTHING

WITH PVC JACKET COVERS AND SEAL AS REQUIRED. INSULATION CAN

OCCUR DURING NORMAL HOURS AFTER OUTAGE COMPLETION, BUT

SHOULD NOT BE DELAYED FOR ANY MORE THAN 3 BUSINESS DAYS.

PHASE 7.1 (DEMO - REFER TO DETAIL 1 AND 10-19 SERIES KEY NOTES):

THE EXISTING GALVANIZED 8" COLD WATER PIPING MAIN TO BE REMOVED

BETWEEN INTERIOR VALVES OF RISERS INDICATED IN KEY NOTES. REFER

TO WORK SEQUENCE DESCRIBED IN 'ISOLATION OF MAIN PIPING LOOP

SECTIONS' BELOW TO EITHER CONFIRM EXISTING VALVES DO NOT LEAK, OR

FOLLOW GUIDELINE PROVISIONS TO BE TAKEN IF THEY ARE FOUND

DEFECTIVE. NO OUTAGES WILL BE REQUIRED DURING THIS SUB-PHASE

WITH MAIN LOOP CONTINUALLY SERVING BOTH SIDES.

PHASE 7.2 (BUILD-BACK - REFER TO DETAIL 2 AND 20-29 SERIES KEY NOTES):

INSTALL NEW PIPING IN SAME LOCATION AS REMOVED SECTION OF 8" COLD

WATER MAIN. MAY REUTILIZE EXISTING PIPING RACK FOR PIPING

SUPPORTS. REFER TO KEY NOTES FOR ADDITIONAL INFORMATION RELATED

TO INSTALLATION.

PHASE 7.3 (DEMO - REFER TO DETAIL 3 AND 30-39 SERIES KEY NOTES):

THE EXISTING GALVANIZED 8" COLD WATER PIPING MAIN TO BE REMOVED

BETWEEN INTERIOR VALVES OF RISERS INDICATED IN KEY NOTES. REFER

TO WORK SEQUENCE DESCRIBED IN 'ISOLATION OF MAIN PIPING LOOP

SECTIONS' BELOW TO EITHER CONFIRM EXISTING VALVES DO NOT LEAK, OR

FOLLOW GUIDELINE PROVISIONS TO BE TAKEN IF THEY ARE FOUND

DEFECTIVE. NO OUTAGES WILL BE REQUIRED DURING THIS SUB-PHASE

WITH MAIN LOOP CONTINUALLY SERVING BOTH SIDES.

PHASE 7.4 (BUILD-BACK - REFER TO DETAIL 4 AND 40-49 SERIES KEY NOTES):

INSTALL NEW PIPING IN SAME LOCATION AS REMOVED SECTION OF 8" COLD

WATER MAIN. MAY REUTILIZE EXISTING PIPING RACK FOR PIPING

SUPPORTS. REFER TO KEY NOTES FOR ADDITIONAL INFORMATION RELATED

TO INSTALLATION.

PHASE 7.5 (RISER VALVE REPLACEMENT - 50+ SERIES KEY NOTES):

AREA SHOWN IN EXPANDED 1/4" = 1'-0" PLAN VIEW SHALL HAVE BOTH 8"

ISOLATION VALVES REPLACED WITH NEW TRIPLE OFFSET BUTTERFLY

VALVES. PLAN FOR OUTAGE OF SHAFT 7 AND AREA SERVED BY VALVE BP.A

AND REPLACE EXISTING 4" AND 6" TAKE-OFF VALVES AT SAME TIME.

INCLUDE 1.5" DRAIN VALVE AT INTERSECTION BETWEEN THREE(3)

REPLACED VALVES. THIS SUB-PHASE WILL CAUSE A LARGE DOMESTIC

WATER OUTAGE FOR AREAS OF FACILITY THAT MAY BE CRITICAL,

CONTRACTOR SHALL REFER TO 'ALLOWANCE FOR TEMP FIXTURES OR

WATER SERVICES' BELOW FOR ACCOMODATIONS NEEDED FOR THOSE

AREAS. OUTAGE WILL AFFECT THE FOLLOWING DEPARTMENTS AND

SHOULD BE CAREFULLY COORDINATED WITH VA FACILITIES;

• BASEMENT LEVEL: MECHANICAL ROOM MP, AMMS - WAREHOUSE,

AMMS - WAREHOUSE ADMIN, LAUNDRY, PHARMACY INPATIENT, SPD,

• FIRST FLOOR: RADIOLOGY, MECHANICAL SPACE M1, EDUCATION MENTAL

HEALTH CLINIC, PSYCHIATRIC ADMINISTRATION.

• SECOND FLOOR: SURGERY - WAITING, SURGERY - EXAM, SURGERY -

RECOVERY

• THIRD FLOOR: CARDIOLOGY - EKG, REHABILITATION MEDICAL SERVICE,

CHRONIC DISEASE CLINIC, MEDICAL RESEARCH - OFFICES

• FOURTH FLOOR: HUMAN RESOURCES, MAS, MEDICAL RESEARCH,

CANTEEN, EDUCATION

ISOLATION OF MAIN PIPING LOOP SECTIONS:

PERFORM THE FOLLOWING PROCEDURE STEPS TO PROPERLY ISOLATE

EACH SECTION OF PIPING LOOP AS DESCRIBED IN PHASING SEQUENCES,

1) SHUT-OFF ISOLATION VALVES ON INTERIOR SIDE OF LOOP BEING

MODIFIED OR REMOVED TO MAINTAIN SERVICES TO ALL RISERS.

2) REMOVE SECTION OF PIPING, OR TAP TEMPORARY DRAIN CONNECTION

TO VERIFY VALVES ARE HOLDING FOR A MINIMUM PERIOD OF 24 HOURS.

3) IF NO VALVE LEAKAGE, OR MINIMAL AMOUNT, IS WITNESSED THAN

PROCEED TO PIPING MODIFICATION AND/OR DEMOLITION SCOPE OF WORK

IDENTIFIED.

4) IF MODERATE OR SIGNIFICANT VALVE LEAKAGE IS WITNESSED THAN

PROVIDE 1.5" VALVE TAP WITH THREADED CONNECTION TO HOSE TO

NEAREST MECHANICAL ROOM DRAIN DISCHARGE LOCATION. THIS

TEMPORARY DRAIN CONNECTION AND HOSE SHALL BE REMOVED ONCE

NEW RISER VALVE REPLACEMENTS ARE COMPLETED.

---CONTRACTOR WILL BE RESPONSIBLE TO KEEP ON SITE AT LEAST FOUR(4)

SETS OF 1.5" VALVES WITH THREADED CONNECTIONS AND TWO(2) 250' LONG

HOSES OF 1.5" DIAMETER IN SIZE.

CONTRACTOR ALLOWANCE FOR TEMP FIXTURES OR WATER SERVICES:

ASSUME THAT DURING THE COURSE OF THE 8 PHASE DOMESTIC WATER

LOOP REPLACEMENT THAT SPECIFIC AREAS WILL REQUIRE TEMPORARY

SINKS AND/OR EXTENSION OF TEMPORARY WATER SERVICES TO THEIR

DEPARTMENT. CONTRACTORS SHALL INCLUDE THE FOLLOWING

ALLOWANCES WITHIN THEIR BASE BID TO ACCOMODATE THOSE REQUESTS

WHEN THEY ARISE DURING OUTAGE COORDINATION WITH VA FACILITIES.

• INCLUDE UP TO TWELVE(12) TEMPORARY SINK FIXTURES TIED INTO AN

ADJACENT RISER SERVICE. EACH SINK WILL REQUIRE UP TO 50' OF

COPPER PIPE FOR WATER CONNECTIONS, OTHERWISE HOSE WILL BE

UTILIZED IF DISTANCE EXCEEDS THAT SPECIFIED AMOUNT OF PIPING.

• INCLUDE FOUR(4) TEMPORARY BACK-UP WATER CONNECTIONS FOR

COLD WATER SERVICE TO AN ENTIRE DEPARTMENT. TEMPORARY COLD

WATER MAIN SHALL BE ASSUMED AT 2" SIZE AND EXTEND A MAXIMUM OF

250' TO CONNECT INTO AN ADJACENT RISER SERVICE.

• NOTE THAT THE ABOVE IS FOR ENTIRE PROJECT, NOT PER PHASE.

EEFFGGHH

HH'

M.B

M.C

1356-PP107.1

3.B

3.C

FFGGHH

HH'

1356-PP107.1

3.B

3.C

FF

8" CW

2 1/2" RHW

4" HW

FF

6" CW

8" CW8" CW

4" CW

4" HW

2" HW

2 1/2"

3" CHWS

3" CHWR

4" HWR

1 1/2" HWR

2 1/2" HWS

3/4" MPC

3/4" MPS

3/4" MPC

2" CHWR

FFGGHH

HH'

BP.B

BP.A

BP.C

7.B

7.A

7.C

1356-PP107.1

3.B

3.C

FFGGHH

HH'

41 42

7.B

7.C

1356-PP107.1

3.B

3.C

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

CONSTRUCTION

DOCUMENTS SUBMISSION

FULLY SPRINKLERED

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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANT

321 4 5 6 7 8 9 10

TRUE NORTH

PLAN NORTH

A

C

C R e v it P ro je c ts

\V A

B u ild in g

P h a s e

M e c h a n ic a l ja s o n g o tt w a lt

.r v t

/3 /2

:4

:0

A M

BASEMENT INTERSTITIAL - PHASE

7 - DOMESTIC WATER PLAN

PREVENT LEGIONELLA,

PHASE III

MINNEAPOLIS

618-14-118

11/30/2022 JG TM / JG618-14-118

1356-PP107.1

1/4" = 1'-0"

ENLARGED - PHASE 7.5

NO SCALE

PHASE 7 - ISOMETRIC VIEW

1/16" = 1'-0"

PHASE 7.1 - DEMO

1/16" = 1'-0"

PHASE 7.2 - NEW

NO SCALE

PHASE 7 ELEVATION - WEST INTERSTITIAL 1

NO SCALE

PHASE 7 ELEVATION - WEST INTERSTITIAL 2

1/16" = 1'-0"

PHASE 7.3 - DEMO

1/16" = 1'-0"

PHASE 7.4 - NEW

SHAFT 3 RISER

VALVE ASSEMBLY

INSTALLED AS

PART OF PHASE 5.

41360DATE REG. NO.

I HEREBY CERTIFY THAT THIS PLAN,

SPECIFICATION OR REPORT WAS PREPARED BY ME

OR UNDER MY DIRECT SUPERVISION AND THAT I

AM A DULY LICENSED PROFESSIONAL ENGINEER

UNDER THE LAWS OF THE STATE OF MINNESOTA.

JASON GOTTWALT, P.E.

TST

S T

S

TS

TS

TS

TS

TS

KEY NOTES:GENERAL NOTES:ZAABBCCDDEEFF

1356-PP107.1

SHAFT 7

8" CW

8" CW

4" CW

/4

C

W

4" CW

3" HW

1 1/4" RHW

C W

1" CW

1" CW

1" CW

1 1/2" CW

2" CW

1 1/4" CW

1/2" CW

4" CW

4" CW

2 1/2" CW

1" CW

4" CW

3" HW

1" RHW

4" CW UP

4" CW UP

3" HW UP

1" RHW UP

ZAABBCCDDEEFF

SHAFT 7

4" CW

/4

C

W

1/2" CW 2" CW

/4

C

W

1" CW

1" CW

1" CW

C W

4" CW

3" HW

1 1/4" RHW

4" CW

/2

C W

1" CW

4" CW

4" CW

3" HW

1" RHW

H W

/4

R

H W

/2

C W

4" CW UP

4" CW UP

3" HW UP

1" RHW UP

/2

C W

1 BEFORE OUTAGE: ROUTE NEW SHAFT 7 PIPING PARALLEL TO

EXISTING PIPING TO LEVEL ABOVE.

DURING OUTAGE: REMOVE AND REPLACE MAIN PIPING BETWEEN

VALVES 7.B AND 7.C. MAKE FINAL CONNECTION TO NEW SHAFT 7

PIPING. ABANDON EXISTING COLD WATER RISER PIPING TO BE

DEMOLISHED AFTER ALL SHAFT 7 FINAL CONNECTIONS ARE MADE

AND OUTAGE IS COMPLETE. CONTRACTOR TO VERIFY PIPE SIZING

AND OUTAGE AREAS PRIOR TO CONSTRUCTION.

AFTER OUTAGE: REFER TO ASSOCIATED LEVEL DEMOLITION VIEW

AND KEY NOTE 2.

AFTER OUTAGE: REMOVE THE EXISTING COLD WATER RISER PIPING.

DEADLEG OR ABANDONED PIPING SHALL NOT REMAIN.

BASEMENT AREA SERVED BY THIS COLD WATER MAIN BEING

RELOCATED IS STERILE PROCESSING THAT OPERATES 24/7 AND NOT

TOLERANT OF OUTAGES EXTENDING MORE THAN A FEW HOURS.

CONTRACTOR SHALL HAVE NEW PIPING MAIN IN PLACE AND

SIMULTANEOUSLY CONNECTED TO CENTRAL SYSTEM PRIOR TO

SWITCHING EACH POINT OF CONNECTION. ESSENTIALLY THIS

MEANS THAT WEEKEND OUTAGE OF THIS AREA WOULD NOT BE

ACCEPTABLE, INSTALL ISOLATION VALVES AT EACH TAKE-OFF FOR

INDIVIDUAL OUTAGES AT EACH POINT OF CONNECTION.

PRIOR TO 'MINI-OUTAGES' DESCRIBED IN KEY NOTE #3 ABOVE.

INSTALL NEW 4" STAINLESS STEEL COLD WATER MAIN ALONG

APPROXIMATE ROUTE INDICATED WHICH EXTENDS TO OUTSKIRT

AREA OF HEAVILY CONGESTED INTERSTITIAL SPACE SERVING

STERILE PROCESSING BELOW. NOTE THAT ACCESSIBILITY TO THIS

ROUTE WILL STILL BE 'CHALLENGING'. ALSO NOTE THAT UNLIKE

OTHER AREAS, OUTAGES CAUSED BY DISCONNECTION AND

RECONNECTION OF HEAVILY CONGESTED DUCTWORK AND/OR

MEDICAL GAS PIPING MAY NOT BE ALLOWED DUE TO OUTAGE

RESTRICTIONS FOR CRITICAL SPACES BELOW. FIELD VERIFY SITE

CONDITIONS PRIOR TO BID.

REFER TO DRAWING 1356-PP107.3 FOR CONTINUATION AND

REPLACEMENT OF EXISTING RISER PIPING PARALLEL TO EXISTING.

A.

B.

C.

D.

E.

F.

THE OUTLINE OF 'MEANS-AND-METHODS' NOTES BELOW FOR VERTICAL

COLD WATER RISER REPLACEMENTS INDICATED WITHIN THESE

DRAWINGS IS NOT INTENDED TO BE ALL-INCLUSIVE OF EFFORT

REQUIRED BY CONTRACTOR. NOR ARE THESE NOTES AND/OR

SUGGESTIONS MEANT TO LIMIT CONTRACTORS FROM DEVELOPING

THEIR OWN APPROACH THAT MAY BE CONSIDERED MORE COST

EFFECTIVE OR SAFE. THESE NOTES ARE MAINLY MEANT TO QUALIFY

EXISTING CONDITIONS AND DEFINE MINIMUM LEVEL OF PLANNING

REQUIRED BY VA FOR EACH OF THESE TIME SENSITIVE OUTAGES.

NO MAJOR WATER OUTAGE SHALL LAST MORE THAN 12 HOURS IN

DURATION. PLUMBING CONTRACTOR TO DETERMINE ADEQUATE

NUMBER OF PLUMBER CREWS REQUIRED TO PERFORM MULTIPLE

TASKS SIMULTANEOUSLY DURING OUTAGES. ALL OUTAGES SHALL BE

ASSUMED TO BE PERFORMED DURING WEEKEND OR NIGHT OVERTIME

HOURS WHEN BIDDING THIS PROJECT.

VERTICAL RISER REPLACEMENT (TYPE 1 - WITHIN MECHANICAL ROOM)

• FOR RISERS WITHIN MECHANICAL ROOMS, CONTRACTOR SHALL

CORE DRILL HOLES THROUGH FLOOR ADJACENT TO EXISTING

PLUMBING RISER FOR NEW INSTALLATION. EXISTING FLOOR

PENETRATIONS AND/OR SLEEVE SHALL BE PATCHED FLUSH TO

EXISTING FLOOR AS REQUIRE UPON DEMOLITION OF THOSE RISERS.

• EXISTINGT TAKE-OFF VALVES MAY REQUIRE RELOCATION FOR

CONNECTION INTO NEW RISER. VERIFY ADEQUATE ACCESS TO ALL

TAKE-OFF VALVES AND PROVIDE WITH NEW LAMINATE SIGNAGE.

ANY VALVES FOUND AT INACCESSIBLE LOCATIONS SHALL BE

RELOCATED BY CONTRACTOR.

• REFER TO CLIN 3001 FOR REPLACEMENT OF ALL ICRCUIT SETTER

VALVES WITHIN ENTIRE BUILDING. PLUMBING CONTRACTOR MAY

OPT TO HAVE DEDICATED CREWS ASSIGNED TO THIS TASK DURING

RISER OUTAGE TO LIMIT NUMBER OF SECONDARY OUTAGES

REQUIRED. HOWEVER, IF ENOUGH PLUMBERS ARE AVAILABLE TO

ACHIEVE THIS DURING LIMITED OUTAGE TIMEFRAME, THAN REFER

TO GENERAL NOTES ON DRAWING PP002 FOR 'LARGE OUTAGES' TO

PERFORM PRIOR TO THE MAJOR RISER OUTAGE.

VERTICAL RISER REPLACEMENT (TYPE 2 - WITHIN ENCLOSED SHAFT)

• IN GENERAL, MAJOR RATED SHAFTS SHOWN IN THESE DRAWINGS

HAVE EXISTING FULL SIZED ACCESS DOOR FROM BASE OF SHAFT

ON FIRST FLOOR LEVEL. HOWEVER, THAT IS TYPICALLY THE ONLY

ACCESS INTO THESE SHAFTS THAT ARE FULLY OPEN (NO

INTERMEDIATE FLOOR STRUCTURES) UP THROUGH PENTHOUSE

LEVEL WHERE RATED WALLS ARE BUILT-UP WITH LID (TYPICALLY

12'+) WITHIN ENCLOSED PENTHOUSE LEVEL.

• IN ORDER TO GAIN ACCESS TO TOP OF SHAFT, CONTRACTOR WILL

BE REQUIRED TO FURNSIH AND INSTALL FIRE RATED DOOR

ASSEMBLIES FROM PENTHOUSE LEVEL. THESE DOORS MAY BE

USED IN CONJUCTION OF RIGGING FOR BOSUN CHAIRS FROM TOP

OF SHAFT IF CONTRACTOR DEEMS THAT AS SAFE AFTER REVIEW

WITH THEIR INTERNAL SAFETY OFFICIAL.

• IN ADDITION TO ACCESS ON TOP LEVEL OF SHAFT, CONTRACTOR

WILL HAVE OPPORTUNITIES TO INSTALL 24"X24" OR 48"X24" FIRE

RATED ACCESS PANELS ON ANY OTHER LEVEL REQUIRED (BUT

ONLY FROM INTERSTITIAL SPACE, INSTALLATION OF ACCESS

PANELS FROM PATIENT CARE AREAS WILL NOT BE PERMITTED).

• CONTRACTOR WILL BE REQUIRED TO PROVIDE THEIR OWN

SCAFFOLDING REQUIRED AT EACH LEVEL TO INSTALL NEW COLD

WATER RISERS ADJACENT TO EXISTING PRIOR TO SIOWTCHOVER

OUTAGE. SCAFFOLDS SHOULD BE STRATEGICALLY PLACE TO

ALLOW ACCESS FOR RECONNECTION TO FLOOR TAKE-OFF PIPING

INSIDE OF EACH SHAFT.

• EXISTING CONDITION PDF SKETCHES ARE PROVIDED ON DRAWINGS

WHERE WORK INSIDE CONFINED AREAS OF RATED SHAFTS IS

REQUIRED. THESE SKETCHES ARE FOR CONTRACTOR REFERENCE

ONLY AND MAY NOT FULLY INDICATE ALL SERVICES WITHIN SHAFT

ENCLOSURES. CONTRACTOR WILL BE REQUIRED TO FIELD VERIFY

ACTUAL SITE CONDITIONS OF EACH SHAFT WHILE DEVELOPING

ACCESS AND SAFETY PLANNING.

NOTE THAT SOME AREAS HAVE EXISTING COPPER MAINS INTENDED TO

REPLACE GALVANIZED RISERS. HOWEVER THESE MAINS WERE

INSTALLED UP TO 15-25 YEARS AGO AND THEIR INTEGRITY IS

QUESTIONABLE. CONTRACTOR MAY UTILIZE THE EXISTING ROUTE, AND

CORRESPONDING SUPPORT HANGERS, BUT MUST FULLY REMOVE ALL

ABANDONED/UNUSED COPPER PIPING MAINS. ONCE OFF SITE THE

CONTRACTOR MAY TAKE OWNERSHIP OF PIPING FOR RECYLCING OR

REPURPOSING, BUT IT SHALL NOT BE UTILIZED WITHIN THIS PROJECT.

NO EXISTING PIPING WILL BE ALLOWED TO BE LEFT ABANDONED. SOME

AREAS HAVE RESTRICITVE ACCESS DUE TO SURROUNDING PIPES

AND/OR STRUCTURE AND MAY REQUIRE TEMPORARY REMOVAL OF

PIPING OR DUCTWORK TO GAIN ACCESS FOR DEMOLITION.

CONTRACTOR TO ASSUME SOME LEVEL OF DISCONNECT/RECONNECT

OF EXISTING SERVICES TO GAIN ACCCESS FOR COMPLETE DEMOLITION

OF EXISTING PIPING, OR INSTALLATION OF NEW PIPE IN CONGESTED

AREAS. REFER TO DRAWING NOTES FOR ADDITIONAL INFORMATION.

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

CONSTRUCTION

DOCUMENTS SUBMISSION

FULLY SPRINKLERED

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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANT

321 4 5 6 7 8 9 10

TRUE NORTH

PLAN NORTH

C

C R e v it P ro je c ts

\V A

B u ild in g

P h a s e

M e c h a n ic a l ja s o n g o tt w a lt

.r v t

/3 /2

:4

:1

A M

BASEMENT - PHASE 7 - ENLARGED

SHAFT 7 COLD WATER

REPLACEMENT PLANS

PREVENT LEGIONELLA,

PHASE III

MINNEAPOLIS

618-14-118

11/30/2022 JG TM / JG618-14-118

1356-PP107.2

1/8" = 1'-0"

BASEMENT - SHAFT 7 REPLACEMENT NEW

1/8" = 1'-0"

BASEMENT - SHAFT 7 REPLACEMENT DEMO

NO SCALE

SHAFT 7 - BASEMENT DETAIL

41360DATE REG. NO.

I HEREBY CERTIFY THAT THIS PLAN,

SPECIFICATION OR REPORT WAS PREPARED BY ME

OR UNDER MY DIRECT SUPERVISION AND THAT I

AM A DULY LICENSED PROFESSIONAL ENGINEER

UNDER THE LAWS OF THE STATE OF MINNESOTA.

JASON GOTTWALT, P.E.

KEY NOTES:GENERAL NOTES:

Z

4" CW UP & DN

4" CW UP & DN

3" HW DN

2 1/2" HW UP

1" RHW DN

3/4" RHW UP

Z

4" CW UP & DN

4" CW UP & DN

3" HW DN

2 1/2" HW UP

1" RHW DN

3/4" RHW UP

3" CW

Z

4" CW UP & DN

4" CW UP & DN

2 1/2" HW UP & DN

3/4" RHW UP & DN

Z

4" CW UP & DN

4" CW UP & DN

2 1/2" HW UP & DN

3/4" RHW UP & DN

3" CW

Z

4" CW DN

3" CW UP

4" CW DN

3" CW UP

2 1/2" HW DN

2" HW UP

3/4" RHW UP & DN

Z

4" CW DN

3" CW UP

4" CW DN

3" CW UP

2 1/2" HW DN

2" HW DN

3/4" RHW UP & DN

Z

3" CW DN

3" CW DN

2" HW DN

1/2" RHW DN

Z

3" CW DN

3" CW DN

2" HW DN

1/2" RHW DN

1 BEFORE OUTAGE: ROUTE NEW SHAFT 7 PIPING PARALLEL TO

EXISTING PIPING TO LEVEL ABOVE. EXTEND NEW TAKEOFFS TO

EXISTING BRANCH TAKEOFFS AND PREPARE FOR NEW CONNECTION.

DURING OUTAGE: DISCONNECT EXISTING BRANCH TAKEOFFS AND

REMOVE TAKEOFF PIPING. MAKE TAKEOFF FINAL CONNECTIONS.

ABANDON EXISTING COLD WATER RISER PIPING TO BE DEMOLISHED

AFTER ALL SHAFT 7 FINAL CONNECTIONS ARE MADE AND OUTAGE IS

COMPLETE. CONTRACTOR TO VERIFY PIPE SIZING AND OUTAGE

AREAS PRIOR TO CONSTRUCTION.

AFTER OUTAGE: REFER TO ASSOCIATED LEVEL DEMOLITION VIEW

AND KEY NOTE 2.

AFTER OUTAGE: REMOVE ABANDONED COLD WATER RISER PIPING.

DEADLEG OR ABANDONED PIPING SHALL NOT REMAIN.

A.

B.

C.

D.

E.

F.

THE OUTLINE OF 'MEANS-AND-METHODS' NOTES BELOW FOR VERTICAL

COLD WATER RISER REPLACEMENTS INDICATED WITHIN THESE

DRAWINGS IS NOT INTENDED TO BE ALL-INCLUSIVE OF EFFORT

REQUIRED BY CONTRACTOR. NOR ARE THESE NOTES AND/OR

SUGGESTIONS MEANT TO LIMIT CONTRACTORS FROM DEVELOPING

THEIR OWN APPROACH THAT MAY BE CONSIDERED MORE COST

EFFECTIVE OR SAFE. THESE NOTES ARE MAINLY MEANT TO QUALIFY

EXISTING CONDITIONS AND DEFINE MINIMUM LEVEL OF PLANNING

REQUIRED BY VA FOR EACH OF THESE TIME SENSITIVE OUTAGES.

NO MAJOR WATER OUTAGE SHALL LAST MORE THAN 12 HOURS IN

DURATION. PLUMBING CONTRACTOR TO DETERMINE ADEQUATE

NUMBER OF PLUMBER CREWS REQUIRED TO PERFORM MULTIPLE

TASKS SIMULTANEOUSLY DURING OUTAGES. ALL OUTAGES SHALL BE

ASSUMED TO BE PERFORMED DURING WEEKEND OR NIGHT OVERTIME

HOURS WHEN BIDDING THIS PROJECT.

VERTICAL RISER REPLACEMENT (TYPE 1 - WITHIN MECHANICAL ROOM)

• FOR RISERS WITHIN MECHANICAL ROOMS, CONTRACTOR SHALL

CORE DRILL HOLES THROUGH FLOOR ADJACENT TO EXISTING

PLUMBING RISER FOR NEW INSTALLATION. EXISTING FLOOR

PENETRATIONS AND/OR SLEEVE SHALL BE PATCHED FLUSH TO

EXISTING FLOOR AS REQUIRE UPON DEMOLITION OF THOSE RISERS.

• EXISTINGT TAKE-OFF VALVES MAY REQUIRE RELOCATION FOR

CONNECTION INTO NEW RISER. VERIFY ADEQUATE ACCESS TO ALL

TAKE-OFF VALVES AND PROVIDE WITH NEW LAMINATE SIGNAGE.

ANY VALVES FOUND AT INACCESSIBLE LOCATIONS SHALL BE

RELOCATED BY CONTRACTOR.

• REFER TO CLIN 3001 FOR REPLACEMENT OF ALL ICRCUIT SETTER

VALVES WITHIN ENTIRE BUILDING. PLUMBING CONTRACTOR MAY

OPT TO HAVE DEDICATED CREWS ASSIGNED TO THIS TASK DURING

RISER OUTAGE TO LIMIT NUMBER OF SECONDARY OUTAGES

REQUIRED. HOWEVER, IF ENOUGH PLUMBERS ARE AVAILABLE TO

ACHIEVE THIS DURING LIMITED OUTAGE TIMEFRAME, THAN REFER

TO GENERAL NOTES ON DRAWING PP002 FOR 'LARGE OUTAGES' TO

PERFORM PRIOR TO THE MAJOR RISER OUTAGE.

VERTICAL RISER REPLACEMENT (TYPE 2 - WITHIN ENCLOSED SHAFT)

• IN GENERAL, MAJOR RATED SHAFTS SHOWN IN THESE DRAWINGS

HAVE EXISTING FULL SIZED ACCESS DOOR FROM BASE OF SHAFT

ON FIRST FLOOR LEVEL. HOWEVER, THAT IS TYPICALLY THE ONLY

ACCESS INTO THESE SHAFTS THAT ARE FULLY OPEN (NO

INTERMEDIATE FLOOR STRUCTURES) UP THROUGH PENTHOUSE

LEVEL WHERE RATED WALLS ARE BUILT-UP WITH LID (TYPICALLY

12'+) WITHIN ENCLOSED PENTHOUSE LEVEL.

• IN ORDER TO GAIN ACCESS TO TOP OF SHAFT, CONTRACTOR WILL

BE REQUIRED TO FURNSIH AND INSTALL FIRE RATED DOOR

ASSEMBLIES FROM PENTHOUSE LEVEL. THESE DOORS MAY BE

USED IN CONJUCTION OF RIGGING FOR BOSUN CHAIRS FROM TOP

OF SHAFT IF CONTRACTOR DEEMS THAT AS SAFE AFTER REVIEW

WITH THEIR INTERNAL SAFETY OFFICIAL.

• IN ADDITION TO ACCESS ON TOP LEVEL OF SHAFT, CONTRACTOR

WILL HAVE OPPORTUNITIES TO INSTALL 24"X24" OR 48"X24" FIRE

RATED ACCESS PANELS ON ANY OTHER LEVEL REQUIRED (BUT

ONLY FROM INTERSTITIAL SPACE, INSTALLATION OF ACCESS

PANELS FROM PATIENT CARE AREAS WILL NOT BE PERMITTED).

• CONTRACTOR WILL BE REQUIRED TO PROVIDE THEIR OWN

SCAFFOLDING REQUIRED AT EACH LEVEL TO INSTALL NEW COLD

WATER RISERS ADJACENT TO EXISTING PRIOR TO SIOWTCHOVER

OUTAGE. SCAFFOLDS SHOULD BE STRATEGICALLY PLACE TO

ALLOW ACCESS FOR RECONNECTION TO FLOOR TAKE-OFF PIPING

INSIDE OF EACH SHAFT.

• EXISTING CONDITION PDF SKETCHES ARE PROVIDED ON DRAWINGS

WHERE WORK INSIDE CONFINED AREAS OF RATED SHAFTS IS

REQUIRED. THESE SKETCHES ARE FOR CONTRACTOR REFERENCE

ONLY AND MAY NOT FULLY INDICATE ALL SERVICES WITHIN SHAFT

ENCLOSURES. CONTRACTOR WILL BE REQUIRED TO FIELD VERIFY

ACTUAL SITE CONDITIONS OF EACH SHAFT WHILE DEVELOPING

ACCESS AND SAFETY PLANNING.

NOTE THAT SOME AREAS HAVE EXISTING COPPER MAINS INTENDED TO

REPLACE GALVANIZED RISERS. HOWEVER THESE MAINS WERE

INSTALLED UP TO 15-25 YEARS AGO AND THEIR INTEGRITY IS

QUESTIONABLE. CONTRACTOR MAY UTILIZE THE EXISTING ROUTE, AND

CORRESPONDING SUPPORT HANGERS, BUT MUST FULLY REMOVE ALL

ABANDONED/UNUSED COPPER PIPING MAINS. ONCE OFF SITE THE

CONTRACTOR MAY TAKE OWNERSHIP OF PIPING FOR RECYLCING OR

REPURPOSING, BUT IT SHALL NOT BE UTILIZED WITHIN THIS PROJECT.

NO EXISTING PIPING WILL BE ALLOWED TO BE LEFT ABANDONED. SOME

AREAS HAVE RESTRICITVE ACCESS DUE TO SURROUNDING PIPES

AND/OR STRUCTURE AND MAY REQUIRE TEMPORARY REMOVAL OF

PIPING OR DUCTWORK TO GAIN ACCESS FOR DEMOLITION.

CONTRACTOR TO ASSUME SOME LEVEL OF DISCONNECT/RECONNECT

OF EXISTING SERVICES TO GAIN ACCCESS FOR COMPLETE DEMOLITION

OF EXISTING PIPING, OR INSTALLATION OF NEW PIPE IN CONGESTED

AREAS. REFER TO DRAWING NOTES FOR ADDITIONAL INFORMATION.

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

CONSTRUCTION

DOCUMENTS SUBMISSION

FULLY SPRINKLERED

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

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANT

321 4 5 6 7 8 9 10

TRUE NORTH

PLAN NORTH

C

C R e v it P ro je c ts

\V A

B u ild in g

P h a s e

M e c h a n ic a l ja s o n g o tt w a lt

.r v t

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:4

:0

A M

LEVELS 1-4 - PHASE 7 - ENLARGED

SHAFT 7 COLD WATER

REPLACEMENT PLANS

PREVENT LEGIONELLA,

PHASE III

MINNEAPOLIS

618-14-118

11/30/2022 JG TM / JG618-14-118

1356-PP107.3

1/8" = 1'-0"

FIRST LEVEL - SHAFT 7 REPLACEMENT DEMO

1/8" = 1'-0"

FIRST LEVEL - SHAFT 7 REPLACEMENT NEW

1/8" = 1'-0"

SECOND LEVEL - SHAFT 7 REPLACEMENT DEMO

1/8" = 1'-0"

SECOND LEVEL - SHAFT 7 REPLACEMENT NEW

1/8" = 1'-0"

THIRD LEVEL - SHAFT 7 REPLACEMENT DEMO

1/8" = 1'-0"

THIRD LEVEL - SHAFT 7 REPLACEMENT NEW

1/8" = 1'-0"

FOURTH LEVEL - SHAFT 7 REPLACEMENT DEMO

1/8" = 1'-0"

FOURTH LEVEL - SHAFT 7 REPLACEMENT NEW

NO SCALE

SHAFT 7 - FIRST LEVEL DETAIL (FOR REFERENCE ONLY)

NO SCALE

SHAFT 7 - SECOND LEVEL DETAIL (FOR REFERENCE ONLY)

NO SCALE

SHAFT 7 - THIRD LEVEL DETAIL (FOR REFERENCE ONLY)

NO SCALE

SHAFT 7 - FOURTH LEVEL DETAIL (FOR REFERENCE ONLY)

41360DATE REG. NO.

I HEREBY CERTIFY THAT THIS PLAN,

SPECIFICATION OR REPORT WAS PREPARED BY ME

OR UNDER MY DIRECT SUPERVISION AND THAT I

AM A DULY LICENSED PROFESSIONAL ENGINEER

UNDER THE LAWS OF THE STATE OF MINNESOTA.

JASON GOTTWALT, P.E.

KEY NOTES: GENERAL NOTES:

X Y Z

3 3

1ISOLATE EXISTING PRESSURE REDUCING STATION SERVING THIS

MECHANICAL ROOM AND OTHER AREAS IN SOUTHWEST QUADRANT

OF BUILDING. FULLY REMOVE EXSITNG TAKE-OFF TEE AND WELD IN

NEW SECTION OF STRAIGHT PIPING TO REPLACE. COORDINATE

OUTAGE DURING PREMIUM HOURS WITHIN MILD WEATHER SEASON

TO MINIMIZE DISRUPTION TO FACILITY. REPAIR ANY REMOVED OR

DAMAGED PIPING INSULATION ON COMPLETION.

REMOVE EIXSTING 30 PSI STEAM PIPING TO WATER HEATERS

SCHEDULED FOR DEMOLITION. INCLUDE REMOVAL OF ALL

ASSOCIATED END OF MAIN STEAM TRAPS AND PIPING COMPONENTS.

REMOVE ALL SUPPORT HANGERS AS REQUIRED AND RESECURE ANY

IMPACTED PIPING ANCHORS THAT MAY HAVE BEEN IMPACTED BY

DEMOLITION.

REMOVE EXISTING INSTANTANEOUS WATER HEATER ALONG WITH ALL

PIPING COMPONENTS, CONTROL SENSORS, AND WIRING. REMOVE

ANY INTEGRATION INTO BUILDING AUTOMATION TO BE REPLACED BY

NEW WATER HEATER INSTALLATION.

REMOVE EXISTING CONDENSATE RETURN PIPINGN UNDERNEATH

SERVICE PLATFORM ALONG WITH ALL SUPPORTS AND INSULATION.

PATCH ALL PIPING PENETRATIONS THROUGH ELEVATED PLATFORM

SERVING AS MEZZANINE FLOOR. WELD STEEL PATCHES AND/OR

GRATING AS REQUIRED AND PAINT ALL AFFECTED AREA TO RESIST

ANY CORROSION ON COMPLETION.

NOTE NOT USED THROUGH

CONTRACTOR TO ISOLATE HIGH PRESSURE STEAM MAIN AT HEADER

TAKE-OFF VALVE. NOTE THAT THIS STEAM RISER WILL AFFECT ENTIRE

QUADRANT OF BUILDING AND SHOULD BE SCHEDULED A MINIMUM OF

2-WEEKS IN ADVANCE WHILE ON PREMIUM OVERTIME DURING MILD

WEATHER TO AVOID RISK TO HOSPITAL OEPRATIONS.

DURING OUTAGE TAP INTO HIGH PRESSURE MAIN AT APPROXIMATE

LOCATION INDICATED AND INSTALL ISOLATION VALVE DETAIL IN KEY

NOTE #12 BELOW. FIELD VERIFY ACTUAL CONDITIONS FOR OFFSET

FROM MAIN REQUIRED TO AVOID EXISTING PIPING SERVICES AND

SUPPORT HANGERS IN THIS CONGESTED AREA.

PROVIDE 4" TRIPLE OFFSET BUTTERFLY VALVE WITH FLANGED

CONNECTIONS AND SPOOL PIECES FOR BYPASS ASSEMBLY. INSTALL

A 1.5" BYPASS AROUND VALVE WITH PISTON VALVE FOR EQUALIZING

LINE PRESSURE PRIOR TO CLOSING HIGH PRESSURE SERVICE.

ROUTE 3/4" HIGH PRESSURE CONDENSATE FROM REDUCING STATION

INLET DRIP LEG TO DISCHARGE INOT EXISTING FLASH TANK.

REFER TO PRESSURE REDUCING STATION DETAIL 7/PP500 FOR ALL

COMPONENTS REQUIRED IN THIS PREMANUFACTURED SKID

ASSEMBLY (CONTRACTOR WILL NOT BE ALLOWED TO FIELD

FABRICATE ON SITE). NOTE THAT HEIGHT OF ASSEMBLY SHALL BE

LIMITED TO FIT UNDERNEATH HPS HEADER. FIELD VERIFY ALL

DIMENSIONS WITH FACOTRY PRIOR TO SHOP DRAWING SUBMITTAL.

ROUTE 3/4" LOW PRESURE CONDENSATE FROM 15 PSI OUTLET DRIOP

LEG TO DISCHARGE DIRECTLY INTO CONDENSATE PUMP.

ROUTE 3" CONDENSATE FROM NEW WATER HEATER ASSEMBLY

ALONG FLOOR (DO NOT LIFT SO THAT GRAVITY DRAINAGE CAN BE

APPLIED WHEN NEEDED). CONNECT DIRECTLY INTO EXISTING

CONDENSATE PUMP WHERE INDICATED.

PROVIDE HEAVY DUTY 18" TALL GUARD RAILS AROUND PERIMETER OF

WATER HEATERS, MANUFACTURERED BY HANDLE-IT, INC.

POSTION WATER HEATERS FAR ENOUGH FROM OBSTRUCTIONS TO

ALLOW FOR FULL REMOVAL OF HEATING TUBE BUNDLES.

A.

B.

C.

D.

E.

MECHANICAL CONTRACTOR SHALL REFER TO THE VA MASTER

SPECIFICATION MANUAL ALONG WITH ANY APPLICABLE STANDARDS

WITHIN THE 2019 HVAC DESIGN GUIDE. ALL REQUIREMENTS OF THOSE

MANUALS SHALL BE MAINTAINED IN ADDITION TO ALL NOTES AND

DESCRIPTIONS INDICATED WITHIN THESE DRAWINGS. ANY CONFLICTS

BETWEEN THOSE DOCUMENTS SHOULD BE BROUGHT TO THE

ATTENTION OF THE ENGINEER FOR INTERPRETATION.

MECHANICAL CONTRACTOR WILL BE RESPONSIBLE TO REVIEW ALL

POTENTIAL OUTAGES RESULTING FROM TIE-INS SHOWN ON THESE

DRAWINGS TO DETERMINE APPROXIMATE AMOUNT OF OVERTIME

REQUIRED TO PERFORM ALL MECHANICAL WORK INDICATED. PROVIDE

THE VA COTR A MINIMUM OF 14 DAYS ADVANCE NOTICE OF ANY

OUTAGE FOR COORDINATION OF SCHEDULES WITH AFFECTED

DEPARTMENTS.

COORDINATE ALL NEW PIPE ROUTING WITH ALL OTHER TRADES TO

INSURE ADEQUATE CLEARANCES FOR PLUMBING, ELECTRICAL

CONDUIT, STRUCTURAL SUPPORTS, PIPING, ETC. ANY UNAVOIDABLE

CONFLICTS SHALL BE BROUGHT TO THE ATTENTION OF THE

ARCHITECT/ENGINEER OF RECORD. PROVIDE ALL OFFSETS AND

TRANSITIONS AS REQUIRED FOR A CLEAN INSTALLATION.

SUPPORT ALL PIPING DIRECTLY TO STRUCTURE. DO NOT SUPPORT ANY

PIPE FROM DUCTWORK, CONDUIT, OR OTHER PIPING ENCOUNTERED.

WHERE MECHANICAL SYSTEMS TO REMAIN ARE DAMAGED, OR

DISTURBED, DURING THE COURSE OF CONSTRUCTION THE

CONTRACTOR WILL BE RESPONSIBLE TO REMOVE DAMAGED PORTIONS

AND INSTALL NEW PRODUCTS OF EQUAL QUALITY AND FUNCTIONALITY.

ALL EXISTING PIPING THROUGH NEW FIRE RATED WALLS SHALL BE

ADEQUATELY FIRE SEALED AS REQUIRED. PIPING PENETRATIONS

THROUGH INTERSTITIAL FLOOR SHALL BE DRILLED, OR CUT, BY THE

CONTRACTOR AND FIRE SEALED AS REQUIRED.

X Y Z AA BB

8" 15# STM

/4

" 1 R

3/4" HPR

/4

" 1 R

4" HPS

3" 15#R

3/4" HPR

1" 15#R

NOTE THAT DOUBLE LINE REPRESENTS STRUCTURAL

MEZZANINE LEVEL WITH SOME PIPING ABOIVE AND BELOW

Project Number

Building Number

Drawing Number

Project Title

Location

Issue DateCheckedDrawn

Drawing Title

Approved:

VA FORM 08 -6231

A

CONSTRUCTION

DOCUMENTS SUBMISSION

FULLY SPRINKLERED

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

2 145678910

Phase

ARCHITECT/ENGINEER OF RECORDSTAMP CONSULTANT

3 2 145678910

TRUE NORTH

PLAN NORTH

E

C :\R e v it P ro je c ts

\V A

B u ild in g

- P h a s e

- M e c h a n ic a l 2 ja s o n g o ttw a lt5

.rv t

/3 /2

:2

:1

A M

BASEMENT INTERSTITIAL - PHASE

8 - HYDRONIC DEMOLITION PIPING

PLAN

PREVENT LEGIONELLA,

PHASE III

MINNEAPOLIS

618-14-118

11/30/2022JGJG 618-14-118

1356-MP108.1

1/4" = 1'-0"

ENLARGED DEMOLITION MECHANICAL PLAN - PHASE 8.4

1/4" = 1'-0"

ENLARGED MECHANICAL PLAN - PHASE 8.4

41360 DATEREG. NO.

I HEREBY CERTIFY THAT THIS PLAN,

SPECIFICATION OR REPORT WAS PREPARED BY ME

OR UNDER MY DIRECT SUPERVISION AND THAT I

AM A DULY LICENSED PROFESSIONAL ENGINEER

UNDER THE LAWS OF THE STATE OF MINNESOTA.

JASON GOTTWALT, P.E.

Revisions:Date: