MH-001 MECHANICAL NOTES LEGENDS ABBREVAITIONS AND SCHEDULES.pdf

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

VA FORM 08 - 6231

A

Fi le

P at h 6/

/2

:3

9:

P M

BID DOCUMENTS

Office of

Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMPCONSULTANT

321 4 5 6 7 8 9 10

GLYCOL UPGRADE FOR PREHEAT

HOT WATER SYSTEM

79 Middleville Rd, Northport, NY 11768

632-22-137

B200N

JUNE 6, 2022 KNRevisions: Date:

200N

JD

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

VA FORM 08 - 6231

A

Fi le

P at h 6/

/2

:3

9:

P M

BID DOCUMENTS

Office of

Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORD STAMPCONSULTANT

321 4 5 6 7 8 9 10

GLYCOL UPGRADE FOR PREHEAT

HOT WATER SYSTEM

79 Middleville Rd, Northport, NY 11768

632-22-137

B200N

JUNE 6, 2022 KNRevisions: Date:

200N

JD

MH-001

MECHANICAL NOTES, LEGEND,

ABBREVIATIONS AND SCHEDULES

JD

AutoCAD SHX Text MECHANICAL NOTES A. THE INTENTION OF THESE CONTRACT DOCUMENTS IS TO REPLACE WATER IN THE PREHEAT GLYCOL HEATING WATER SYSTEM WITH 30% SOLUTION PROPYLENE GLYCOL. CONTRACTOR SHALL FURNISH THE GLYCOL AND THE MEANS FOR FILLING THE SYSTEM INCLUDING PUMP AND ALL APPURTENANCES AS DESCRIBED IN THE CONTRACT DOCUMENTS. IN ADDITION, THE CONTRACTOR SHALL FURNISH ONE ADDITIONAL 55 GALLON DRUM OF 30% PROPYLENE GLYCOL FOR FUTRUE USE. THE 55 GALLON DROM SHALL BE LOCATED IN THE BASEMENT MER. (APPROXIMATELY 1,000 GALLONS OF 30% SOLUTION PROPYLENE GLYCOL IS REQUIRED; THE VA MEDICAL CENTER WILL PAY FOR ONLY THE AMOUNT OF GLYCOL ACTUALLY SUPPLIED) B. THIS PROJECT INVOLVES MODIFICATIONS TO PIPING SYSTEMS, MUCH OF WHICH IS CONCEALED IN WALLS AND CEILINGS. ALL EXISTING PIPING INDICATED ON DRAWINGS ARE DIAGRAMMATIC BASED ON AVAILABLE DRAWINGS AND FIELD OBSERVATIONS, AND DO NOT SHOW ALL OFFSETS, DROPPING AND RISING OF RUNS AS MAY BE NECESSARY TO COMPLETE THE WORK AS SHOWN. PRIOR TO SUBMITTING BID, CONTRACTOR SHALL VISIT SITE TO EXAMINE THE EXISTING CONDITIONS AND INCLUDE ADDITIONAL PIPING, ACCESSORIES AND APPURTENANCES AS DEEMED NECESSARY TO COMPLETE THE WORK. THE CONTRACTOR SHALL PROVIDE FOR ALL REASONABLE ADDITIONAL PIPE EXTENSIONS, OFFSETS, DROPPING AND RISING OF PIPING AS REQUIRED TO AVOID OBSTRUCTIONS, WITHOUT ADDITIONAL COST TO THE OWNER. STANDARDS AND CODES: A. VA STANDARDS B. ASHRAE STANDARDS AS APPLICABLE C. SMACNA MANUALS AS APPLICABLE D. BUILDING STANDARDS AND REQUIREMENTS E. NFPA STANDARDS AS APPLICABLE F. NATIONAL ELECTRIC CODE STANDARDS AND REQUIREMENTS G. EPA REQUIREMENTS H. FEDERAL CODES HAVING JURISDICTION SPECIAL REQUIREMENTS: A. IDENTIFY EQUIPMENT WITH LAMINATED PLASTIC NAMEPLATES EQUAL TO SETON NAME PLATE CORP., STYLE M4564 ENGRAVED SETONPLY NAMEPLATE. SCAFFOLDING AND RIGGING: A. CONTRACTOR SHALL PROVIDE ALL SCAFFOLDING, RIGGING AND SERVICES NECESSARY FOR ERECTION AND DELIVERY ONTO THE PREMISES OF ALL MATERIALS FURNISHED AND/OR INSTALLED UNDER THIS SECTION OF THE SPECIFICATIONS AND REMOVE SAME FROM PREMISES WHEN NO LONGER REQUIRED. PIPING AND FITTINGS: A. INSTALL PIPING SYSTEMS USING THE BEST STANDARD PRACTICES OF THE TRADE TO MAKE THE CONNECTED EQUIPMENT AND SYSTEM COMPONENTS COMPLETE AND READY FOR REGULAR OPERATION. INSTALLATION SHALL BE IN ACCORDANCE WITH ALL WRITTEN INSTALLATION PROCEDURES, PIPING ACCESSORY MANUFACTURER'S RECOMMENDATIONS, REQUIREMENTS OF BUILDING SERVICES PIPING (ANSI B31.9) AND POWER PIPING (ANSI B31.1) AS APPLICABLE, AND AS SPECIFIED. B. STEEL PIPING: 1. THE USE OF STEEL PIPE SHALL NOT BE ACCEPTABLE FOR THIS PROJECT. 2. ALL COPPER PIPING SHALL BE TYPE "L". CUTTING AND PATCHING A. CONTRACTOR SHALL PROVIDE ANY REQUIRED CUTTING AND PATCHING INCLUDING PATCHING OF ALL OPENINGS IN WALLS, ETC. RESULTING FROM DEMOLITION, MODIFICATIONS TO EXISTING SYSTEMS, NEWLY INSTALLED CONSTRUCTION, ETC. REQUIRED FOR THE WORK OF THIS DIVISION.

AutoCAD SHX Text PIPING CLEANING A. DO NOT OPERATE PIPING SYSTEMS UNTIL ALL CONSTRUCTION DIRT AND DEBRIS HAVE BEEN REMOVED FROM THE SYSTEM. 2. FLUSH OUT ALL NEWLY INSTALLED GLYCOL WATER PIPING WITH CLEAN WATER UNTIL ALL CUTTING AND EXTRANEOUS DEBRIS HAVE BEEN REMOVED. PIPING INSULATION: A. ASTM E-84 MINIMUM FIRE HAZARD RATING SHALL BE 25 FLAME SPREAD, 50 FUEL CONTRIBUTED AND 50 SMOKE DEVELOPED. B. INSULATE ALL NEW PIPING INSTALLED UNDER THIS PROJECT. PIPING TEST: A. TESTS: NO TESTS SHALL BE STARTED UNTIL SYSTEMS HAVE BEEN CLEANED. PROVIDE TEMPORARY PIPING AND CONNECTIONS FOR TESTING, FLUSHING OR DRAINING SYSTEMS TO BE TESTED. IF LEAK DEVELOP, REPAIRS SHALL BE MADE AND TESTS REPEATED. TESTING SHALL BE IN ACCORDANCE WITH THE CONTRACT DOCUMENTS.

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BUTTERFLY VALVE

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FPC

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CIRCUIT BALANCING VALVE

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PLUG VALVE

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FLEXIBLE PIPE CONNECTION

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DEAD END - SCREWED CAP

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BUTTERFLY AUTOMATIC CONTROL VALVE

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GLOBE VALVE

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CHECK VALVE

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DEAD END - WELDED CAP

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GATE VALVE

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BALL VALVE

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ECCENTRIC REDUCER - FLAT BOTTOM

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ECCENTRIC REDUCER - FLAT TOP

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FLANGED END

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FLANGED CONNECTION

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CONCENTRIC REDUCER

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PIPE RISE

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UNION

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PIPE DROP

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NEW PIPE WITH DIRECTION OF FLOW

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EXISTING PIPE ETC.

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(TP)

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STEAM TRAP

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PUMP/FAN

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PUMP

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LINE VOLTAGE (120 VOLTS)

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PNEUMATIC

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CONTROL AIR

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PN

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EXISTING PIPE, EQUIPMENT, ETC. TO BE DEMOLISHED

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DO

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WFS

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2-WAY AUTOMATIC CONTROL VALVE (ELECTRIC)

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PRESSURE GAUGE WITH "T" HANDLE

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AO : ANALOGUE OUTPUT

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AI : ANALOGUE INPUT

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COCK & BRASS SIPHON (STEAM)

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LOW VOLTAGE CONTROL WIRE

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DI : DIGITAL INPUT

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DO : DIGITAL OUTPUT

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WATER FLOW SWITCH

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COCK & PULSATION SNUBBER (WATER)

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PRESSURE SENSOR

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PRESSURE GAUGE WITH "T" HANDLE

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THERMOMETER AND WELL

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"Y" TYPE STRAINER

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AUTOMATIC AIR VENT

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PRESSURE SAFETY RELIEF VALVE

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PRESSURE REDUCING VALVE

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3-WAY AUTOMATIC CONTROL VALVE (ELECTRIC)

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2-WAY AUTOMATIC CONTROL VALVE (PNEUMATIC)

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TEMPERATURE SENSOR

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DUCT

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PIPE

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DUCT

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PIPE

AutoCAD SHX Text GAURANTEE: A. CONTRACTOR SHALL PROVIDE A ONE YEAR GAURANTEE FOR WORKMANSHIP AND A ONE YEAR WARRANTY ON ALL EQUIPMENT INSTALLED UNDER THIS PROJECT COMMENCING FROM TIME OF OWNER'S ACCEPTANCE.

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SCOPE OF WORK

AutoCAD SHX Text A. THE FOLLOWING PROCEDURE TO BE PERFORMED DURING SHOULDER OR COOLING SEASON. THIS WORK

AutoCAD SHX Text SHOULD NOT BE PERFORMED ANYTIME WHERE WEATHER IS EXPECTED TO DROP BELOW 55 DEGRRES

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FAHRENHEIT.

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1. MATERIALS

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a. APPROXIMATELY 1000 GALLONS OF 30%%% SOLUTION PROPYLENE GLYCOL WILL BE REQUIRED.

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THE VA MEDICAL CENTER WILL PAY FOR ONLY THE ACTUAL AMOUNT OF GLYCOL REQUIRED

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b. IN ADDITION, FURNISH TWO (2) ADDITIONAL 55 -GALLON DRUMS OF 30%%% PROPYLENE GLYCOL

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FOR FUTURE USE

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c. STORE DRUMS TEMPORARILY IN THE BASEMENT MER.

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2. SHUT DOWN GLYCOL WATER PUMPS P-5 AND P-6, LOCK-OUT RESPECTIVE PUMP STARTERS PER VA

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STANDARDS

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3. CLOSE OFF COLD-WATER MAKE-UP TO THE PREHEAT SYSTEM

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4. OPEN ALL PREHEAT WATER STOP VALVES IN MER THAT MAY BE CLOSED INCLUDING THE BYPASS LINE;

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CONFIRM ALL CONTROL VALVES ON PREHEAT SYSTEM ARE IN THE OPEN POSITION.

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5. LOCATE ALL DRAIN VALVES IN LOWEST POINT OF PREHEAT WATER SUPPLY AND RETURN LINES IN BASEMENT

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MER.

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6. CONNECT ONE HOSE EACH TO RESPECTIVE DRAIN VALVES FOR PREHEAT WATER SUPPLY AND RETURN LINES

AutoCAD SHX Text AND EXTEND HOSES TO THE NEAREST FLOOR DRAIN; IF POSSIBLE, EXTEND EACH HOSE TO A SEPARATE FLOOR

AutoCAD SHX Text DRAIN. OPEN DRAIN VALVES AND DRAIN PREHEAT WATER INTO THE FLOOR DRAIN(S) AT A FLOW RATE THAT

AutoCAD SHX Text WILL NOT OVERFLOW THE FLOOR DRAIN(S) IN MER OR CAUSE THE DRAINAGE WATER TO RISE UP OUT OF ANY

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OTHER FLOOR DRAINS IN BASEMENT.

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7. VENT THE PREHEAT GLYCOL HEATING WATER SYSTEM FOR HIGH POINT IN THE ROOF PENTHOUSES.

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8. ALLOW THE PREHEAT WATER SYSTEM TO DRAIN COMPLETELY. WHEN WATER STOPS DRAINING FROM THE

AutoCAD SHX Text HOSES IN BASEMENT MER, OPEN DRAINS TO ANY OTHER LOW POINTS WHERE THERE MAY BE RESIDUAL

AutoCAD SHX Text WATER SUCH AS STRAINERS, PUMPS, AIR SEPARATOR, HEAT EXCHANGERS,ETC. AT BASEMENT MER AND TWO

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PENTHOUSES.

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9.REPLACE PRESSURE GAUGES AT PUMPS P-5 AND P-6, SUCTION AND DISCHARGE.

AutoCAD SHX Text 10.DISCONNECT THE DOMESTIC COLD WATER MAKE-UP WATER LINE IN BASEMENT MER FROM THE PREHEAT

AutoCAD SHX Text WATER RETURN, INSTALL BALL VALVES AND CAPPED 3/4-INCH HOSE FITTINGS AT BOTH ENDS.

AutoCAD SHX Text 11.DISCONNECT THE EXISTING GLYCOL MAKE-UP SYSTEM FROM EXISTING 3/4-INCH COPPER PIPE, LEAVING THE

AutoCAD SHX Text 3/4-INCH CONNECTION WHERE IT CURRENTLY IS CONNECTED TO THE PREHEAT WATER RETURN AND CAP IT;

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RETAIN AS MUCH OF THE EXISTING COPPER PIPING AS POSSIBLE.

AutoCAD SHX Text 12.CLOSE ALL DRAIN VALVES IN THE BASEMENT MER AND THE PENTHOUSE MERS, THEN DOUBLE CHECK.

AutoCAD SHX Text 13.CLOSE ALL OPEN VENT VALVES IN BASEMENT MER AND EACH PENTHOUSE MER, INCLUDING AT PREHEAT

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COILS, THEN DOUBLE CHECK.

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14.FILL THE SYSTEM FULLY WITH 30%%% PROPYLENE GLYCOL AND VENT AIR FROM SYSTEM.

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FROM SYSTEM.

AutoCAD SHX Text 15.START UP GLYCOL PREHEAT HEATING WATER SYSTEM, RECORD PUMP AMPERAGE AND SUCTION AND DISCHARGE

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AND SUCTION AND DISCHARGE PRESSURES.

AutoCAD SHX Text 16.ONCE SYSTEM IS OPERATING SATISFACTORILY, PREPARE TO INSTALL NEW GLYCOL MAKE-UP SYSTEM.

AutoCAD SHX Text 17.CONNECT THE NEW GLYCOL MAKE-UP SYSTEM, PER MANUFACTURER'S PRINTED INSTALLATION INSTRUCTION

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TO THE EXISTING CONNECTION POINT IN PREHEAT WATER RETURN.

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19.PLUG IN GLYCOL MAKE-UP SYSTEM TO LOCAL 120 VOLT RECEPTACLE IN BASEMENT MER.

AutoCAD SHX Text 20.SET CONTROLS FOR START AT PRESSURE 3 PSI BELOW SYSTEM OPERATING PRESSURE AT BASEMENT LEVEL.