Attachment D.9 Drawings 9 of 10 (6 Pages).pdf

KEY NOTES: GENERAL NOTES:

TS

TST

S T

S

T S

T S

TS

T S

TS

T

S

TS

TS

TS

TS

T S

TS

TS

T S

TS

TS

TS

T S

T S

TS

TS

TS

TS

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 #10.C AND VALVE #11.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 7.C AND VALVE G.B (BOTH FURTHER OUT TO NEXT

ADJACENT RISER VALVES OUTSIDE THE EXTENTS OF THIS PHASE

DRAWING) TO ISOLATE RISER J AND RISER 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

10 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 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

10 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 TAKE-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

10 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.

REROUTING 8" COLD WATER MAIN TO WEST AS INDICATED WILL TRAVEL

THROUGH SOME HEAVILY CONGESTED SPACES. HOWEVER, THIS WILL

BE NECESSARY TO GET OVER TO THE OPEN WAREHOUSE AREA

WHERE ROUTING OF NEW PIPING MAIN WILL BE MUCH EASIER.

AT THIS POINT PIPING LEAVES THE INTERSTITIAL SPACE AND INTO AN

OPEN WAREHOUSE AREA. SCISSOR LIFTS WILL BE REQUIRED FOR

WORKING IN AREA OF HIGH STRUCTURE, AND ALL WORK EFFORT IN

THIS AREA SHALL BE DURING OVERTIME TO AVOID INTERFERENCE

WITH WAREHOUSE STAFF AND FUNCTION.

NOTE THAT NEW STAINLESS STEEL COLD WATER MAIN ROUTED

ACROSS CORRIDOR SHALL BE HIGH ABOVE ALL OTHER SERVICES.

CONTRACTOR TO REVIEW ACCESSIBILITY TO THIS AREA TO CONFIRM

SITE CONDITIONS PRIOR TO BID.

PHASE 8.1 (PREINSTALLATION) - DETAIL 1 AND 10-19 SERIES KEY NOTES):

APPROACH WITHIN THIS PHASE WILL BE SLIGHTLY DIFFERENT THAN

PREVIOUS PHASES 1-3 IN THAT THE NEW STAINLESS STEEL PIPING MAINS

WILL BE PREINSTALLED AND TESTED PRIOR TO DEMOLITION OF EXISTING

MAINS. REFER TO DETAIL 1 ON THIS DRAWING FOR LOCATION OF NEW

SECTION OF PIPING LOOP ON OPPOSITE NORTH WALL WITHIN AVAILABLE

SPACE OF EXISTING PIPING RACK ON THAT SIDE.

PHASE 8.2.1 (RISER J 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 J 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: AMMS - WAREHOUSE, SPD.

• FIRST FLOOR: MECHANICAL ROOM 1J, MENTAL HEALTH CLINIC,

PSYCHIATRIC ADMINISTRATION, EDUCATION, SUBSTANCE ABUSE CLINIC.

• SECOND FLOOR: MECHANICAL ROOM 2J, ON-CALL, PRIMARY CARE

CLINIC, SICU, SURGERY-RECOVERY SURGERY-WAITING

• THIRD FLOOR: MECHANICAL ROOM 3J, CARDIOLOGY -

CATH/OFFICES/CARIOLOGY HOLDING/ECHO/EP LAB, PRIMARY CARE -

MEDICAL OFFICES, MEDICAL RESEARCH.

• FOURTH FLOOR: MECHANICAL ROOM 4J, POLYTRAUMA INPATIENT UNIT,

MEDICAL RESEARCH, CENTRAL STAFF LOCKERS, VOL SVC AMERICAN

LEGION

PHASE 8.2.2 (RISER K 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 K 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;

• FIRST FLOOR: MECHANICAL ROOM 1K, BEHAVIORAL MED BEDS,

REHABILITATION MEDICAL SERVICE, CENTRAL STAFF LOCKERS,

PSYCHIATRIC ADMINISTRATION, SOCIAL WORK, EDUCATION

• SECOND FLOOR: MECHANICAL ROOM 2K, INPATIENT SURGICAL BEDS, 23

HOUR OBSERVATION BEDS, CENTRAL STAFF LOCKERS, SURGERY-

STAFF, IMAGING STORAGE

• THIRD FLOOR: MECHANICAL ROOM 3K, INPATIENT MEDICAL BEDS,

CENTRAL STAFF LOCKER, CARDIOLOGY-STAFF, ON-CALL.

• FOURTH FLOOR: MECHANICAL ROOM 4K, ACS (PRIMARY) - POLYTRAUMA

OUTPATIENT / ADMIN, OUT LEASED SPACE - AFGE, CLINICAL SERVICES

ADMINISTRATION, NURSING SERVICE ADMIN, MEDICAL RESEARCH.

PHASE 8.2.3 (SHAFT 6 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 SHAFT 6 AND REPLACE EXISTING 4" 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: CENTRAL STAFF LOCKERS, ENGINEERING, NUTRITION /

FOOD SERVICE, AMMS - WAREHOUSE

• FIRST FLOOR: NUTRITION / FOOD SERVICE, MENTAL HEALTH REHAB,

SPECIALTY CARE SCHOOL OF ANESTHESIA, PROVIDERS LOUNGE,

FITNESS CENTER, RECREATIONAL THERAPY

• SECOND FLOOR: SURGERY - STAFF, EDUCATION, PSYCHOLOGY, SOCIAL

WORK, VETERANS ASSISTANCE / SERVICE ORGANIZATIONS, CHAPLAIN

SERVICE, EDUCATION.

• THIRD FLOOR: ACS (PRIMARY) - RESPIRATORY THERAPY, MICU BEDS,

CARDIOLOGY - CATH LAB, ON-CALL

• FOURTH FLOOR: MCCR - BUSINESS OFFICE, FISCAL, VOLUNTARY

SERVICE, ENVIRONMENTAL MANAGEMENT.

PHASE 8.3 (DEMO):

REFER TO DRAWING PP108.2 DRAWINGS FOR DESCRIPTIVE NOTES AND

DETAILS OF THIS PHASE THAT IS DEFINED ON THAT DRAWING.

PHASE 8.4 (WATER HEATER INSTALLATION / FINAL CONNECTIONS):

REFER TO DRAWING PP108.3 DRAWINGS FOR DESCRIPTIVE NOTES AND

DETAILS OF THIS PHASE THAT IS DEFINED ON THAT DRAWING.

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.

WXYZAABBCCDDEEFFGGHHJJ

HH'

SHAFT 7

RISER J

BM-123F

STAIR

1356-PP108.1

1356-PP108.3

2 1356-PP108.1

7.C

7.B

J.B'

J.C'

J.A'

J.B

J.A

J.C

K.B'

K.C'

K.A'

K.B

K.A K.C

1356-PP108.1

TO SHAFT 6

TO RISER K

1356-PP108.2

8" CW

WORK INDICATED PAST

THIS POINT IS INSIDE

WAREHOUSE DURING

OVERTIME HOURS.

38 WORK INDICATED PAST

THIS POINT IS INSIDE

WAREHOUSE DURING

OVERTIME HOURS.

C W

8" CW

C W

8" CW 8" CW

REFER TO DRAWING 1356-PP108.3

FOR ADDITIONAL WORK WITHIN THIS

J-PUMP MECHANICAL ROOM

DDEE

J.B'

J.A'

J.C'

J.B

J.A

J.C

30 REFER TO DETAIL

2/1356-PP107 FOR

VALVE LOCATION.

REFER TO DETAIL

2/1356-PP101.1 FOR

VALVE LOCATION.

2" HW

3/4" RHW

3" CW

5" CW UP

1 1/2" RHW UP

4" HW UP

4" HW

1 1/2" RHW

5" CW

4" HW

2 1/2" RHW

8" CW

8" CW

5" CW

8" CW

8" CW

2 1/2" RHW

4" HW

W

K.B'

K.B

K.A

K.A'

K.C

K.C'

REFER TO DETAIL

2/1356-PP107 FOR

VALVE LOCATION.

REFER TO DETAIL

2/1356-PP101.1 FOR

VALVE LOCATION.

5" CW

1 1/2" RHW

4" HW

5" CW

8" CW

8" CW

8" CW

8" CW

2 1/2" RHW

4" HW

X

6.B

6.C

6.A

6.A'

6.B'

6.C'

REFER TO DETAIL

2/1356-PP101.1 FOR

VALVE LOCATION.

REFER TO DETAIL

2/1356-PP107 FOR

VALVE LOCATION.

4" CW

8" CW

2 1/2" RHW

4" HW

3" HW

1 1/4" RHW

8" CW

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

E

G

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

:4

A M

BASEMENT INTERSTITIAL - PHASE

8.1 - DOMESTIC WATER PLAN

PREVENT LEGIONELLA,

PHASE III

MINNEAPOLIS

618-14-118

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

1356-PP108.1

1/16" = 1'-0"

PHASE 8.1 - NEW

1/4" = 1'-0"

ENLARGED - PHASE 8.2.1

1/4" = 1'-0"

ENLARGED - PHASE 8.2.2

1/4" = 1'-0"

ENLARGED - PHASE 8.2.3

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:

KEY NOTES:

GENERAL NOTES:

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.

NOT USED THROUGH KEY NOTE

SHUT-OFF VALVE #7.C AND VALVE #6.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.

PHASE 8.1 (PREINSTALLATION):

REFER TO DRAWING PP108.1 DRAWINGS FOR DESCRIPTIVE NOTES AND

DETAILS OF THIS PHASE THAT IS DEFINED ON THAT DRAWING.

PHASE 8.2.1 (RISER J VALVE REPLACEMENT):

REFER TO DRAWING PP108.1 DRAWINGS FOR DESCRIPTIVE NOTES AND

DETAILS OF THIS PHASE THAT IS DEFINED ON THAT DRAWING.

PHASE 8.2.2 (RISER K VALVE REPLACEMENT):

REFER TO DRAWING PP108.1 DRAWINGS FOR DESCRIPTIVE NOTES AND

DETAILS OF THIS PHASE THAT IS DEFINED ON THAT DRAWING.

PHASE 8.2.3 (SHAFT 6 VALVE REPLACEMENT):

REFER TO DRAWING PP108.1 DRAWINGS FOR DESCRIPTIVE NOTES AND

DETAILS OF THIS PHASE THAT IS DEFINED ON THAT DRAWING.

PHASE 8.3 (DEMO - REFER TO DETAIL 1 AND 30+ SERIES KEY NOTES):

AFTER ALL NEW PIPING HAS BEEN INSTALLED AND RECONNECTED INTO

MAIN LOOP, THEN THE EXISTING GALVANIZED 8" COLD WATER PIPING MAIN

MAY REMOVED. SINCE ALL OUTAGES WERE PERFORMED IN PREVIOUS

PHASE THERE WILL BE NO RESTRICTIONS OR OUTAGE COORDINTION

NECESSARY DURING THIS SUB-PHASE.

PHASE 8.4 (WATER HEATER INSTALLATION / FINAL CONNECTIONS):

REFER TO DRAWING PP108.3 DRAWINGS FOR DESCRIPTIVE NOTES AND

DETAILS OF THIS PHASE THAT IS DEFINED ON THAT DRAWING.

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.

1 29

WXYZAABBCCDDEEFFGGHHJJ

HH'

J.B'

J.A'

J.C'

J.B

J.C

J.A

K.B

K.A

K.A'

K.B'

K.C'

K.C

7.C

7.B

6.B

6.B'

6.A'

6.A

6.C

6.C'

1356-PP108.2

BP.E

7.A

BP.B

BP.A

BP.C

DD EE

8" CW

8" CW

2 1/2" RHW

4" HW

2" HW

3/4" RHW 3" CW

3" HPS

4" PC

6" HPS

2 1/2" CHW

4" HW

9 8

8" CW

8" CW

8" CW

8" CHWS

8" CHWS

8" CW

8" CW

EXISTING

INCOMING

WATER

SERVICE

8" CW

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

E

G

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 INTERSTITIAL - PHASE

8.3 - DOMESTIC WATER PLAN

PREVENT LEGIONELLA,

PHASE III

MINNEAPOLIS

618-14-118

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

1356-PP108.2

1/16" = 1'-0"

PHASE 8.3 - DEMO

NO SCALE

PHASE 7 ELEVATION - WEST INTERSTITIAL 3

NO SCALE

PHASE 8 ELEVATION - MECHANICAL ROOM WATER SERVICE

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.

T S

T S

T S

T S

T S

KEY NOTES:GENERAL NOTES:GENERAL NOTES:

T S

T S

T S

XYZAABBCC

1356-PP108.2

SWH

70-SW-01

STEAM PRESSURE REDUCING STATION

INSTALLED UNDER HIGH PRESSURE

STEAM HEADER, SEE DRAWING MP801.1

DWP

70-SW-02

DWP

70-SW-01

6" CW

6" CW

8" CW

C W

C W

8" CW 8" CW

C

W4" HW

C W

/2

/2

C H

W

8" CW

C W

4" HW 4" HW

C W

NOTE THAT DOUBLE DASHED LINES REPRESENT A STRUCTURAL

MEZZANINE PLATFORM. PIPING SHOWN IS BOTH ABOVE AND BELOW.

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.

REFER TO ISOLATION NOTES FOR THIS AREA AS SHOWN ON DRAWING

PP108.2 PRIOR TO PERFDORMING ANY DEMOLITION WORK SHOWN.

ONCE AREA IS ISOLATED, AND ENTIRE BUILDING SUPPORTED FROM

SECONDARY 6" SERVICE IN NORTHEAST QUADRANT FOR MIMUM OF 1-

WEEK, THAN COORDINATE DISCONNECITON OF THIS SERVICE WITH

WATER UTILITY REPRESENTATIVE.

REMOVE EXISTING RPZ BACKFLOW PREVENTORS. NOTE THAT BOTH

SETS OF 8" RPZ ASSEMBLIES WILL BE FULLY DISPOSED OR RECYCLED

BY MECHANICAL CONTRACTOR.

DISCONNECT SMALL SERVICE PIPING TO FROM WATER SAMPLING

EQUIPMENT MOUNTED ON WALL TO REMAIN. REFER TO NEW

DRAWINGS FOR RECONNECTION AND CERTIDFICATION OF THIS

EXISTING WATER MONITORING SYSTEM.

NOTE WHERE WELL WATER WAS PREVIOUSLY DISCONNECTION FROM

POTABLE WATER SERVICE. REMOVE SECTION OF 8" DEAD LEG PIPING

BACK TO IRRIGATION WATER TAKE-OFF AND PROVIDE NEW CAP TO

CLEAN UP PIPING IN AREA. (NOTE THAT ANY UNUSED PIPING

DISCOVERED WITHIN MECHANICAL ROOM ASSOCIATED WITH DOMESTIC

WATER SYSTEM SHOULD BE DEMOLISHED.)

SALVAGE EXISTING WATER FLOW METER AND CORRESPONDING

CONTROLLER. NOTE THAT BOTH PROBE AND CONTROLLER WILL NEED

TO BE RELOCATED AND REINSTALLED, REFER TO DRAWING PP108.4.

DISCONNECT PIPING TO EXISTING BOOSTER PUMP SYSTEM TO REMAIN.

REMOVE ASSOCIATE BYPASS VALVE AND ALL OTHER PIPING

COMPONENTS. REFER TO DRAWING PP108.4 FOR RECONNECTION.

REMOVE EXISTING 6" PIPING SERVICE TO COOLING TOWER MAKE-UP

WATER BACKFLOW ASSEMBLY. RPZ ASSEMBLY TO REMAIN BUT

SHOULD BE ALTERED BY ADDING A FULL SIZE 6" TEE FOR FUTURTE

INSTALLATION OF REDUDNANT RPZ ASSEMBLIES.

REMOVE BOTH (X2) EXISTING HOT WATER HEAT EXCHANGERS AND

CONTROLLERS. ALL ASSOCIATED VALVES AND COMPONENTS SHALL

BE FULLY REMOVED AND DISPOSED OF BY CONTRACTOR. CLEAN UP

MEZZANINE AREA AND PATCH AREAS OF FLOOR GRATING CAUSED BY

DEMOLITION (VISIT SITE TO CONFIRM CONDITIONS PRIOR TO BID).

REMOVE EXISTING RECIRCULATION PUMP AND STAND. NOTE THAT

AFTER DISCONNECTION OF THIS RECIRCULATION SYSTEM THAT ENTIRE

BUILDING MAY SIGNIFICANTLY TREND OUT OF BALANCE. INTENT

WOULD BE FOR CONTRACTOR TO HAVE ALL TEMPERATURE SENSORS

FOR EACH RECIRCULATION LOOP APPROPRIATELY VERIFIED AND

ADDRESSED WITHIN BAS SYSTEM (SEE KEY NOTE #21 ON DRAWING

PP03). CONTRACTOR SHALL UTILIZE THESE TEMPERATURE SENSORS

TO MAKE ADJUSTMENTS ON SYSTEM TO COMPENSATE FOR PERIOD OF

TIME WITH REDUCED RECIRCULATION FLOW ORIGINATING ONLY FROM

SOUTHWEST PUMP.

REMOVE SET OF THREE(3) VALVES AT THIS LOCATION. CONFIRM IF VA

WOULD LIKE TO SALVAGE THESE VALVES BEFORE DISPOSAL.

NOTE THAT EXISTING 8" COLD WATER MAIN IS ROUTED HIGH ABOVE

MANY OTHER PIPING SERVICES MAKING REMOVAL DIFFICULT TO

ACHIEVE. CONTRACTOR SHALL REVIEW SITE PRIOR TO BID AND

ASSUME THAT CUTTING OF THIS PIPE INTO MANY SMALL SECTIONS FOR

FULL DEMOLITION WILL BE REQUIRED. ABANDONING ANY OLD PIPING IN

PLACE WILL NOT BE PERMITTED.

EXISTING HOT WATER FLOW METER TO REMAIN. REPAIR DAMAGED

INSULATION IN THIS AREA OF HOT WATER PIPING.

NOT USED THROUGH KEY NOTE

NOTE THAT PLUMBING KEY NOTES 20 THROUGH 29 BELOW ARE

ASSOCIATED WITH DETAIL 2/PP108.3 ON THIS DRAWING. CLOSELY

COORDINATE INSTALLATION SCHEDULE OF WATER HEATER WITH VA

FACILITIES TO CLOSELY MONITOR EXISTING SYSTEMS THAT WILL

TEMPORARILY SUPPORT THE ENTIRE BUILDING.

STEAM REDUCING STATION SHOWN ON THIS DRAWING FOR

REFERENCE ONLY. REFER TO DRAWING MP108.1 FOR ALL STEAM

PIPING INSTALLATION NOTES AND DETAILS.

INSTALL THREE(3) FULL SIZE 4" STAINLESS STEEL TRIPLE OFFSET

BUTTERFLY VALVEs TO ISOLATE HOT WATER SERVICE FROM NEW

WATER HEATER SYSTEM. NOTE TO PROVIDE THIS VALVE DURING

WEEKEND OUTAGE WHEN CROSS-OVER PIPING CONNECTION TO

RISERS ARE INSTALLED.

COORDINATE A SECONDARY OUTAGE, SEPARATE FROM WEEKEND

OUTAGE OF RISERS '7' AND 'J' (PLUS SOUTHWEST QUADRANT OF

LOWER LEVEL) SHOWN IN DRAWING PP108.1. DURING THIS OUTAGE OF

SHAFT '#6' INSTALL SECTION OF 6" PIPING BETWEEN POINTS OF

DISCONNECT, ALONG WITH FULL SIZE 6" VALVES SHOWN ON EITHER

SIDE AND 4" TAKE-OFF VALVE INSIDCATED.

PROVIDE TWO(2) RECIRCULATION PUMPS VERTICALLY STACKED IN A

PARALLEL PIPING CONFIGURATION WITH DUAL ISOLATION VALVES ON

EITHER SIDE AND FULL SIZED STRAINERS WITH BLOW-DOWN VALVES.

INCLUDE PRESSURE AND TEMPERATURE GAUGES ON BOTH SIDES OF

DUAL RECIRCULATION PUMP ASSEMBLIES.

POINT OF CONNECTION FOR COLD WATER MAKE-UP TO NEW WATER

HEATERS FROM ISOLATION VALVE INSTALLED DURING PHASE 8.1 (SEE

DRAWING PP108.1). CONTRACTOR TO TEST, STERILIZE, AND

THOROUGHLY FLUSH NEW PIPING AND WATER HEATER SYSTEM PRIOR

TO ENGAGING INTO SERVICE.

VERIFY ADEQUATE SPACE FROM ANY OBSTRUCTIONS FOR PULLING

TUBE BUDLES OUT HORIZONTALLY. COORDINATE ALL OTHER SERVICE

ACCESS WITH VA FACILITIES REPRESENTATIVES.

CONNECT INTO EXISTING 8" PRIMARY WATER SERVICE AT THIS

LOCATION. ALL PIPIJNG INSTALLED BEYOND THIS POINT SHALL BE

SCHEDULE 10 STAINLESS STEEL WITH ROLL-GROOVED FITTINGS AND

STAINLESS VALVES AND COMPONENTS SPECIFIED.

PROVIDE 1" WATER CONNECTIONS TO EXISTING INCOMING WATER

SAMPLING EQUIPMENT. UPON COMPLETION OF WORK RECALIBRATE

EXISTING EQUIPMENT (NOTE THAT THIS IS SYSTEM SYSTEM SPECIFIED

FOR SECONDARY SERVICE ON DRAWING PP104.1).

PROVIDE FULL SIZED 8" TRIPLE OFFSET BUTTERFLY VALVE PRIOR TO

RECONNECTION TO EXISTING BUFFER TANK TO ALLOW FOR

REPLACEMENT OR REMOVAL AT A FUTURE DATE (NIC).

EXTEND 6" STAINLESS STEEL PIPING TO EXISTING COOLING TOWER

BACKFLOW ASSEMBLY. CONNECT TO EXISTING RPZ WITH FULL SIZED 6"

TEE HAVING BOTTOM LEG CAPPED FOR POTENTIAL INSTALLATION OF

REDUNDANT BACKFLOW ASSEMBLY IN FUTURE (NIC).

REFER TO DRAWING PP108.1 FOR INSTALLATION OF NEW 8" WATER

MAIN THROUGH J-PUMP ROOM PRIOR TO DEMOLITION OF EXISTING.

NOTE THAT UPDATED LOCATION WILL BE BELOW ALL EXISTING PIPING

SERVICES DUE TO ACCESSIBILITY ISSUE FOR CURRENT ROUTE. PIPING

OFFSETS WILL BE REQUIRED TO AVOID EXISTING PIPING AND/OR

EQUIPMENT, CONTRACTOR TO VERIFY SITE CONDITIONS PRIOR TO

BIDDING.

REINSTALL PREVIOUSLY REMOVED FLOW METER (SEE KEY NOTE #5) AT

APPROXIMATE LOCATION. CALBRATE/TEST ON COMPLETION.

PROVIDE TWO(2) 8" RPZ ASSEMBLIES IN PARALLEL CONSTRUCTED OF

304 STAINLESS STEEL OR BETTER. MOUNT EACH OF THE ASSEMBLIES

AT APPROXIMATELY 30" ABOVE FLOOR LEVEL. ANGLE VALVE STEMS ON

EITHER SIDE AS REQUIRED FOR ACCESSIBILITY. REFER TO OUTLINE

SPECIFICATION BELOW.

DUAL RPZ VALVE SPECIFICATION - Refer to drawing PP104.1 for outline specification for Watts Series 994, or equal coupled with either stainless steel body OS&Y valves or stainless triple offset butterfly valves.

PHASE 8.3 (DEMO - J-PUMP ROOM EQUIPMENT REMOVAL):

REFER TO THIS DRAWING PP108.3 DRAWINGS FOR DESCRIPTIVE NOTES AND

DETAILS FOR DISCONNECTION OF MAIN WATER SERVICE AND EXISTING

WATER HEATERS/ETC, NOTE THAT ALL MEASURES IDENTIFIED IN PREVIOUS

PHASE TO ISOLATE THIS SECTION OF PIPING LOOP AND NOTIFY VA OF

OVERALL SCHEDULE FOR INTERIM LAFE SAFETY MEASURES WHILE ONLY

HAVING A SINGLE WATER SERVICE AND WATER HEATER PREVIOUSLY

INSTALLED DURING PHASE 4 OF THIS PROJECT.

PHASE 8.4 (WATER HEATER INSTALLATION AND FINAL CONNECTIONS):

MECHANICAL CONTRACTOR MAY SCHEDULE AND PERFORM

PREINSTALLATION OF EQUIPMENT AND PIPING DURING PHASES 5 THROUGH

8 AND MAKE ALL FINAL CONNECTIONS DURING THIS PHASE 8.4 SERVICE

OUTAGE. ALL CONTROLS AND PIPING COMPONENTS SHALL BE FULLY

TESTED AND COMMISSIONED DURING PHASE 8 AND READY TO BE SHIFTED

ONLINE PRIOR TO COMPLETION OF THIS FINAL PROJECT PHASE.

PHASE 8.1 (PREINSTALLATION):

REFER TO DRAWING PP108.1 DRAWINGS FOR DESCRIPTIVE NOTES AND

DETAILS OF THIS PHASE THAT IS DEFINED ON THAT DRAWING.

PHASE 8.2.1 (RISER J VALVE REPLACEMENT):

REFER TO DRAWING PP108.1 DRAWINGS FOR DESCRIPTIVE NOTES AND

DETAILS OF THIS PHASE THAT IS DEFINED ON THAT DRAWING.

PHASE 8.2.2 (RISER K VALVE REPLACEMENT):

REFER TO DRAWING PP108.1 DRAWINGS FOR DESCRIPTIVE NOTES AND

DETAILS OF THIS PHASE THAT IS DEFINED ON THAT DRAWING.

PHASE 8.2.3 (SHAFT 6 VALVE REPLACEMENT):

REFER TO DRAWING PP108.1 DRAWINGS FOR DESCRIPTIVE NOTES AND

DETAILS OF THIS PHASE THAT IS DEFINED ON THAT DRAWING.

PHASE 8.2 (DEMO - MAIN LOOP):

REFER TO DRAWING PP108.2 DRAWINGS FOR DESCRIPTIVE NOTES AND

DETAILS OF THIS PHASE THAT IS DEFINED ON THAT DRAWING.

XYZAABBCC

EXISTING 6" MAKE-UP WATER

TO COOLING TOWER RPZ

EXISTING 8" MAIN SERVICE REDUNDANT

BACKFLOW PREVENTORS (SEE NOTES)

EXISTING INCOMING WATER

SAMPLE MONITOR - SEE NOTE

EXISTING PRESSURE

BOOSTER PUMP TO REMAIN

REFER TO DRAWING PP108.2 FOR

DEMOLITION OF THIS COLD WATER

MAIN THROUGH J-PUMP ROOM SHOWN.

REFER TO DRAWING PP108.2 FOR

DEMOLITION OF THIS COLD WATER

MAIN THROUGH J-PUMP ROOM SHOWN.

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

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 ja s o n g o tt w a lt

.r v t

/3 /2

:4

:3

A M

BASEMENT INTERSTITIAL -

PHASES 8.3 AND 8.4 - DOMESTIC

WATER PLAN

PREVENT LEGIONELLA,

PHASE III

MINNEAPOLIS

618-14-118

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

1356-PP108.3

1/4" = 1'-0"

ENLARGED - PHASE 8.4

1/4" = 1'-0"

ENLARGED DEMOLITION PLUMBING PLAN - PHASE 8.4

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.

T S

T S

T S

T S

KEY NOTES:GENERAL NOTES:

UVWX

SHAFT 6

1" RHW UP

3" HW UP

4" CW UP

4" CW UP

1 1/4" RHW

3" HW

4" CW

C W

H W

/4

R

H W

2 1/2" HW

2 1/2" CW

R H

W

H W

C W

C W

1/2" RHW

2 1/2" HW

2 1/2" CW

UVWX

C W

2 1/2" CW

C W

2 1/2" CW

4" CW UP

4" CW UP

3" HW UP

1" RHW UP

1 1/4" RHW

3" HW

4" CW

H W

/4

R

H W

2 1/2" HW

R H

W

H W

2 1/2" HW

1/2" RHW

6.A'

6.C'

6.B'

4 5

1 BEFORE OUTAGE: ROUTE NEW SHAFT 6 PIPING PARALLEL TO

EXISTING PIPING TO LEVEL ABOVE.

DURING OUTAGE: REMOVE AND REPLACE MAIN PIPING BETWEEN

VALVES 6.B AND 6.C. MAKE FINAL CONNECTION TO NEW SHAFT 6

PIPING. ABANDON EXISTING COLD WATER RISER PIPING TO BE

DEMOLISHED AFTER ALL SHAFT 6 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.

NORTH-SOUTH ROUTED SECTION OF PIPING WITHIN CORRIDOR WITH

HIGH CEILINGS (NOT INSIDE INTERSTITIAL SPACE). NOTE THAT NEW

ROUTE WOULD BE BELOW EXISTING PIPING AND/OR DUCTWORK

WITHIN CORRIDOR, COORDINATE PIPING SUPPORTS FROM

STRUCTURE AS REQUIRED.

PENETRATE CORRIDOR WALL AT APPROXIMATE LOCATION INDICATED

TO ENTER INTO INTERSTITIAL SPACE PAST THIS POINT.

WITHIN INTERSTITIAL SPACE ROUTE PARALLEL PIPING COLD WATER

MAIN FURTHER NORTH THAN CURRENT ROUTING TO AVOID SOME

CONGESTION OF EXISTING MECHANICAL/ELECTRICAL/DATA TRAY

SERVICES. THIS SECTION WEST-TO-EAST ROUTING OF PIPING WILL

HAVE LIMITED ACCESS, BOTH FOR NEW INSTALLATION AND

DEMOLITION OF EXISTING (PER KEY NOTE #8 BELOW).

REFER TO DRAWING 1356-PP108.5 FOR CONTINUATION AND

INSTALLATION OF NEW COLD WATER RISER PARALLEL TO EXISTING.

EXISTING COLD WATER MAIN TO BE REMOVED IS ABOVE LAYERS OF

CONDUIT, PIPING, ETC ABOVE CORRIDOR. CONTRACTOR TO NOTE OF

LIMITED ACCESSIBILITY AND POTENTIAL FOR CUTTING PIPING INTO

VERY SMALL PIECES TO ALLOW FOR REMOVAL. FIELD VERIFY

EXISTING CONDITIONS.

EXISTING COLD WATER MAIN WITHIN INTERSTITIAL AREA SURROUNDS

BY DUCTWORK, ESPECIALLY WHEN CLOSEST TO SHAFT #6.

CONTRACTOR MAY BE REQUIRED TO DISCONNECT AND RECONNECT

EXISTING DUCTWORK TO ALLOW ACCESS FOR FULL PIPING

REMOVAL. COORDINATE ASSOCIATED OUTAGES AS REQUIRED WITH

VA COTR.

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.

• EXISTING 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 BBI 3001 FOR REPLACEMENT OF ALL CIRCUIT 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 FURNISH AND INSTALL FIRE RATED DOOR

ASSEMBLIES FROM PENTHOUSE LEVEL. THESE DOORS MAY BE

USED IN CONJUNCTION 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 SWITCHOVER

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 RECYCLING OR

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

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

AREAS HAVE RESTRICTIVE 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 ACCESS 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

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 ja s o n g o tt w a lt

.r v t

/3 /2

:4

:4

A M

BASEMENT - PHASE 8 - ENLARGED

SHAFT 6 COLD WATER

REPLACEMENT PLANS

PREVENT LEGIONELLA,

PHASE III

MINNEAPOLIS

618-14-118

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

1356-PP108.4

1/8" = 1'-0"

BASEMENT - SHAFT 6 REPLACEMENT DEMO

1/8" = 1'-0"

BASEMENT - SHAFT 6 REPLACEMENT NEW

NO SCALE

SHAFT 6 - 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.

T S

KEY NOTES:GENERAL NOTES:

UV

4" CW UP & DN

4" CW UP & DN

3" HW UP & DN

1" RHW UP & DN

1 1/2" CW

UV

4" CW UP & DN

4" CW UP & DN

3" HW UP & DN

1" RHW UP & DN

1 1/2" CW

UV

4" CW DN

4" CW DN

2 1/2" HW DN

1" RHW DN

4" CW UP

4" CW UP

2" HW UP

3/4" RHW UP

3" CW

1" HW

3/4" RHW

UV

1" RHW DN

3" HW DN

4" CW DN

4" CW DN

4" CW UP

4" CW UP

2" HW UP

3/4" RHW UP

3" CW

UV

3/4" RHW

2" HW3" CW

4" CW DN

2 1/2" CW UP

4" CW DN

2 1/2" CW UP

3/4" RHW DN

1/2" RHW UP

2" HW DN

1" HW UP

UV

4" CW DN

2 1/2" CW UP

4" CW DN

2 1/2" CW UP

3/4" RHW DN

1/2" RHW UP

2" HW DN

1" HW UP

3" CW

2" HW

3/4" RHW

UV

2 1/2" CW DN

2 1/2" CW DN

1" HW DN

1/2" RHW DN

UV

2 1/2" CW DN

2 1/2" CW DN

1" HW DN

1/2" RHW DN

1 BEFORE OUTAGE: ROUTE NEW SHAFT 6 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 6 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

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 ja s o n g o tt w a lt

.r v t

/3 /2

:5

:4

A M

ALL LEVELS - PHASE 8 -

ENLARGED SHAFT 6 COLD WATER

REPLACEMENT PLANS

PREVENT LEGIONELLA,

PHASE III

MINNEAPOLIS

618-14-118

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

1356-PP108.5

1/8" = 1'-0"

FIRST LEVEL - SHAFT 6 REPLACEMENT DEMO

1/8" = 1'-0"

FIRST LEVEL - SHAFT 6 REPLACEMENT NEW

1/8" = 1'-0"

SECOND LEVEL - SHAFT 6 REPLACEMENT DEMO

1/8" = 1'-0"

SECOND LEVEL - SHAFT 6 REPLACEMENT NEW

1/8" = 1'-0"

THIRD LEVEL - SHAFT 6 REPLACEMENT DEMO

1/8" = 1'-0"

THIRD LEVEL - SHAFT 6 REPLACEMENT NEW

1/8" = 1'-0"

FOURTH LEVEL - SHAFT 6 REPLACEMENT DEMO

1/8" = 1'-0"

FOURTH LEVEL - SHAFT 6 REPLACEMENT NEW

NO SCALE

SHAFT 6 - FIRST LEVEL DETAIL

NO SCALE

SHAFT 6 - SECOND LEVEL DETAIL

NO SCALE

SHAFT 6 - THIRD LEVEL DETAIL

NO SCALE

SHAFT 6 - FOURTH LEVEL 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.

GENERAL NOTES:

CONNECTION

TO PREVIOUS

PHASE

BP.C

BP.B

BP.A

7.C

7.B

7.A

8" CW

8" CW

8" CW

J.B

J.C

J.A

CONNECTION

TO RISER "J"

TAKE-OFF AND TRIPLE

VALVE ASSEMBLY FOR

CONNETION TO

EXISTING WATER

SERVICE. REFER TO

1356-PP108.3.

6.C

6.A

6.B

TAKE-OFF AND VALVE

FOR CONNETION TO

NEW WATER HEATERS.

REFER TO 1356-PP108.3.

4" CW

1 1/4" RHW

4" CW

3" HW

4" CW

3" CW

2 1/2" CW

4" CW UP

3" HW UP

1" RHW UP

2 1/2" CW

8" CW K.B

K.A

K.C

8" CW

CONNECTION

TO PHASE 1.

TO RISER K

CONNECTION TO

EXISTING RISER K

PIPING

8" CW

8" CW

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.

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

E

G

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

:5

:5

A M

BASEMENT INTERSTITIAL - PHASE

8 - DOMESTIC WATER PLAN

PREVENT LEGIONELLA,

PHASE III

MINNEAPOLIS

618-14-118

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

1356-PP108.6

NO SCALE

PHASE 8 - ISOMETRIC VIEW

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.