1. The document provides abbreviations and acronyms commonly used on mechanical drawings. It includes over 70 abbreviations ranging from general terms like GPM, GAL, FT to equipment terms like C.I., CFM, HP. 2. It also lists 13 general mechanical notes covering topics like pipe supports, equipment dimensions, field verification of dimensions, flexible connectors for expansion, and fireproof sealed wall penetrations. 3. The notes indicate that drawings and specifications use specific manufacturers as design basis, and contractors must verify exact placement and dimensions in field conditions.

2. GENERAL NOTES
L.R. ELL.
L.P.
LG.
LB.
KGV
INV.
INSUL.
IN.
I.D.
HVAC
HST
HPT
HP
H.P.
HO
HGL
GPM
GALV.
GAL.
FT.
FS
FPM
F.O.T.
F.O.S.
F.O.B.
FL.
FLEX.
FIT
FIN. GR.
FIN. FL.
FE
EXIST
EW
ENCL.
EL.
ELEC.
EGL
EFF. %
EFF.
ECC. RED.
DWG'S
DN
DIA.
D.I.
DET.
DEG. F.
CS
CPVC
CORP.
CONT.
CONN.
CONC.
C.O.
CMU
~
C.I.
CFM
BCR. BOD
ARCH.
APPROX.
AFF
ACFM
XPROOF
WS
WC
WxH
W/
VAC
V
TYP.
T.O.D.
T.O.C.
THK.
TEMP.
SW
STR.
STD.
S.S.
SR
SQ.
SPECS.
SPD
SL
SH.
SG
SCR
SCH.
RPM
REQ'D.
REINF.
REF.
RED. FLG.
RED.
R
PVC
PSIG
PSIA
PSI
PSH
PS
PLUMB.
`
P
OPER.
O.D.
O.C.
NTS
NPT
NOM.
No.
N.O.
N.C.
MIN.
MH
MGD
MECH.
MATL.
MAX.
LxW
LSP
LSH
L.R. RED. ELL.
L.R. RED. BASE ELL.
GENERAL MECHANICAL ABBREVIATIONS
GENERAL MECHANICAL NOTES
3.
2.
1.
NOTES:
2
GN
NTS
SHEET MAY NOT APPEAR ON THIS SET OF DRAWINGS.
ALL SYMBOLS AND ABBREVIATIONS SHOWN ON THIS
REQUIRED ON MECHANICAL DRAWINGS.
FLANGED JOINTS. OTHER JOINTS ARE SHOWN AS
VALVES AND PIPE FITTINGS ARE SHOWN WITH
SPECIFICATIONS FOR ITEMS REQUIRED.
USE OF THE PLANS. REFER TO THE PLANS AND
THIS IS A GENERAL LEGEND PROVIDED TO FACILITATE
EXPLOSION PROOF
WATER SURFACE
WATER COLUMN
WIDTH x HEIGHT
WITH
VACUUM
VENT
TYPICAL
TOP OF DUCT
TOP OF CONCRETE
THICK
TEMPERATURE
SEAL WATER
STRUCTURAL
STANDARD
STAINLESS STEEL
RAW SEWAGE
SQUARE
SPECIFICATIONS
SUMP PUMP DISCHARGE
STOP LOG
SHEET
SLIDE GATE
SCREEN
SCHEDULE
REVOLUTIONS PER MINUTE
REQUIRED
REINFORCED
REFERENCE
REDUCING FLANGE
REDUCER
RADIUS
POLYVINYL CHLORIDE
POUNDS PER SQUARE INCH GAGE
POUNDS PER SQUARE INCH ABSOLUTE
POUNDS PER SQUARE INCH
PRESSURE SWITCH HIGH
PRESSURE SWITCH
PLUMBING
PLATE
PRESSURE GAUGE
OPERATING
OUTSIDE DIAMETER
ON CENTER
NOT TO SCALE
NATIONAL PIPE THREAD
NOMINAL
NUMBER
NORMALLY OPEN
NORMALLY CLOSED
MINIMUM
MANHOLE
MILLION GALLONS PER DAY
MECHANICAL
MATERIAL
MAXIMUM
LENGTH X WIDTH
LIQUID SAMPLE PORT
PRESSURE SWITCH LOW
LONG RADIUS REDUCING ELBOW
LONG RADIUS REDUCING BASE ELBOW
LONG RADIUS ELBOW
LOW POINT
LONG
POUND
KNIFE GATE VALVE
INVERT
INSULATION
INCHES
INSIDE DIAMETER
HEATING VENTILATION
HOIST
HOSE PIPE THREAD
HORSE POWER
HIGH POINT
HYDRAULIC OIL
HYDRAULIC GRADE LINE
GALLONS PER MINUTE
GALVANIZED
GALLONS
FEET
FLOW SWITCH
FEET PER MINUTE
FLAT ON TOP
FLAT ON SIDE
FLAT ON BOTTOM
FLANGE
FLEXIBLE
FLOW INDICATING TRANSMITTER
FINISHED GRADE
FINISHED FLOOR
FLOWMETER
EXISTING
EFFLUENT WATER
ENCLOSURE
ELEVATION
ELECTRICAL
ENERGY GRADE LINE
% EFFICIENCY
EFFLUENT
ECCENTRIC REDUCER
DRAWINGS
DOWN
DIAMETER
DUCTILE IRON
DETAIL
DEGREES FEHRENHEIT
CHLORINATED POLYVINYL CHLORIDE
CORPORATION
CONTINUATION
CONNECTION
CONCRETE
CLEANOUT
CONCRETE MASONRY UNIT
CENTERLINE
CAST IRON
CUBIC FEET PER MINUTE
BOTTOM OF DUCT
BRIDGE CRANE
ARCHITECTURAL
APPROXIMATE
ABOVE FINISHED FLOOR
ACTUAL CUBIC FEET PER MINUTE
12.
11.
10.
9.
8.
7.
6.
5.
4.
3.
2.
1.
NATIONAL ELECTRIC CODE (NEC) FOR THE APPROPRIATE ENVIRONMENT.
ALL MECHANICAL AND ELECTRICAL ITEMS INSTALLED IN THE WORK AREAS SHALL BE SUITABLE FOR THE ENVIRONMENT FOR WHICH THEY WILL EXIST AND CLASSIFIED BY THE
SUPPORT SYSTEMS WITH SUITABLE SPACING AS REQUIRED BY THE PROJECT SPECIAL PROVISIONS.
PIPE SUPPORTS FOR PIPES LESS THAN 8-INCHES IN DIAMETER ARE NOT SHOWN ON THESE PLANS FOR CLARITY. THE CONTRACTOR SHALL PROVIDE ALL NECESSARY PIPE
EQUIPMENT AT NO ADDITIONAL COST TO THE OWNER.
FITS INTO THE ALLOCATED SPACES WITH SUITABLE CLEARANCE FOR ACCESS. THE CONTRACTOR SHALL PROVIDE ALL ALTERATIONS REQUIRED TO ACCOMODATE SUCH
DRAWINGS. MINOR DEVIATIONS IN DIMENSIONS WILL BE PERMITTED AT THE ENGINEER'S DISCRETION, PROVIDED THAT THE EQUIPMENT MEETS THE SPECIFIED RATINGS AND
BE RESPONSIBLE FOR CHECKING ALL OF THE EQUIPMENT DIMENSIONS TO ENSURE THAT ALL COMPONENTS WILL FIT INTO THE DESIGNATED SPACES INDICATED ON THE
THE DRAWINGS, SCHEDULES, AND SPECIFICATIONS, HAVE BEEN PREPARED USING SPECIFIC MANUFACTURERS FOR THE BASIS OF DIMENSIONAL DESIGN. THE CONTRACTOR SHALL
CONDITIONS AND APPROVED SHOP DRAWINGS.
DROP, OFFSET, FITTING, OR STRUCTURAL ELEMENT THAT MAY BE REQUIRED. THE CONTRACTOR SHALL VERIFY EXACT PLACEMENT OF ALL DEVICES AND EQUIPMENT WITH FIELD
THE PLANS ARE GENERALLY DIAGRAMMATIC IN NATURE. ROUTING OF PIPING, DUCTWORK, CONDUITS, ETC., AS SHOWN ON THE DRAWINGS, DOES NOT INTEND TO SHOW EVERY RISE,
THE CONTRACTOR SHALL MAKE ALL REQUIRED FIELD MEASUREMENTS TO VERIFY EXISTING AND CONTRACT INTERFACE DIMENSIONS, LOCATIONS, AND OTHER CONDITIONS.
ALL FLEXIBLE CONNECTORS, EXPANSION JOINTS, AND SLEEVE COUPLINGS SUBJECT TO PRESSURE SHALL BE RESTRAINED AS REQUIRED FOR EXPANSION AND FLEXIBILITY.
EQUIPMENT REMOVAL.
FOR FLANGED SYSTEMS, PROVIDE FLEXIBLE CONNECTORS WHERE NECESSARY, AND AS APPROVED BY THE ENGINEER, TO FACILITATE PIPING INSTALLATION AND VALVE AND
SLEEVE COUPLINGS MAY BE USED WHERE NECESSARY, AND AS APPROVED BY THE ENGINEER, TO FACILITATE PIPING INSTALLATION.
ALL PIPE PENETRATIONS THROUGH INTERIOR AND EXTERIOR WALLS AND FLOORS SHALL BE SEALED WATERTIGHT AND FIREPROOF RATED.
ALL DIMENSIONS LOCATING EQUIPMENT ARE FROM FINISHED WALL SURFACES OR CENTERLINES, AS INDICATED.
CONTRACTOR TO PROVIDE A LAYOUT DRAWING SHOWING ALL PIPING, SUPPORTS, AND APPURTENANCES.
PUBLIC HEALTH (IDPH) REGULATIONS.
ALL WORK TO BE IN ACCORDANCE WITH THE CITY OF CHICAGO BUILDING CODES, COOK COUNTY DEPARTMENT OF PUBLIC HEALTH AND ILLINOIS DEPARTMENT OF
CLIENT:
DRAWING NO.
SHEET OF
TITLE:
NO. DATE NATURE OF REVISION
FILE NAME N:chicago150084MechNOT_150084_02.sht
CHKD.
JPCDSGN.
JPCCHKD.
SCALE:
DWN.
7/6/2016PLOT DATE:
jkennedyCAD USER:
PROJ. NO.
MODEL: Default
DATE:
ELP
15-0084
JTK
GAH
CHICAGO, IL 60608
1501 SOUTH CALIFORNIA AVENUE
MT. SINAI HOSPITAL
7
HW HEATER REPLACEMENT PROJ.
7//5/16
MT. SINAI HOSPITAL - DOMESTIC

3. OVERALL PLAN VIEW PLN
3
SYSTEM AND PIPING
EXISTING WATER HEATING
NTS
OF BOILER ROOM
EXISTING WEST WALL
COLUMN
EXISTING BUILDING
ABANDONED IN PLACE
TO BE SEALED AND
EXISTING CATCH BASIN
WATER HEATERS
TYPE SEMI-INSTANTANEOUS
PROPOSED TRIPLEX, SKID
CONTROL PANELS
CONFIGURED
PROPOSED TRIPLEX
PIPING
ACCEPT PROPOSED
BE RECONFIGURED TO
HOT WATER PIPING TO
EXISTING STEAM ANDINSTANTANEUOUS WATER HEATER
STEAM LINES TO PROPOSED SEMI-
TO BE REUSED. CONNECT EXISTING
EXISTING STEAM SUPPLY HEADER
AND CEILINGS
ROUTING THRU EXISTING WALLS
CONTRACTOR TO COORDINATE
DIAGRAMATIC CONDUIT ROUTING,
EXISTING HALLWAY
FRANKEL BUILDING
LOCATED IN BASEMENT OF
EXISTING BOILER ROOM L41
EXISTING MECHANICAL ROOM L42
(TO REMAIN)
SUMP PUMP
CONDENSATE
STEAM LINE
CONDUIT
INTERMEDIATE METAL
GROUND THWN IN 1"
NEUTRAL AND 3/C #12
3-1/C #12, 1/C #12
APPROX. 2' HIGH x 3' WIDE
METRO MIX MIXING VALVE HEADER
PROPOSED LOCATION OF
INSTANTANEOUS WATER HEATER SKID
CONTROL PANELS ON SEMI-
FOR POWER TO THE 3 PROPOSED
CIRCUIT BREAKERS IN PANELBOARD
PROVIDE 3 NEW, 2O AMP, 1-POLE
EXISTING LIGHTING PANEL RP-1.
OPERATIONAL
IN PLACE AND
HEATING SYSTEM IS
AFTER NEW WATER
ANCILLARY PIPING
REMOVED, WITH ALL
WATER HEATER TO BE
EXISTING 1500 GALLON
HOT WATER2" STEAM
1 8/10/16 IDPH COMMENTS GAH
BELOW FOR ROOM LOCATIONS
BUILDING LAYOUT PLAN
SEE EXISTING BASEMENT
(ROOMS L41 & L42)
LOCATION OF WORK AREA
EXISTING BASEMENT BUILDING LAYOUT PLAN
CLIENT:
DRAWING NO.
SHEET OF
TITLE:
NO. DATE NATURE OF REVISION
FILE NAME N:chicago150084MechPLN_150084_03.sht
CHKD.
JPCDSGN.
JPCCHKD.
SCALE:
DWN.
8/10/2016PLOT DATE:
jkennedyCAD USER:
PROJ. NO.
MODEL: Default
DATE:
ELP
15-0084
JTK
GAH
CHICAGO, IL 60608
1501 SOUTH CALIFORNIA AVENUE
MT. SINAI HOSPITAL
7
HW HEATER REPLACEMENT PROJ.
7//5/16
MT. SINAI HOSPITAL - DOMESTIC
1
1

4. STEAM AND HEAT EXCHANGER
1'
6.
5.
4.
3.
2.
1.
NOTES:
NO.
ITEM
1
THRUSH STEAM TO WATER HEAT EXCHANGER
STRUCTURAL STEEL FRAME
PART NUMBER
4" X 2" FABRICATED ELBOW
2" GATE VALVE
2" FABRICATED SPOOL
2" STEAM CONTROL VALVE
2" STRAINER
2" FABRICATED TEE
2" GLOBE VALVE
2" FABRICATED ELBOW
2" FABRICATED HEADER
2" CONDENSATE HEADER
3" WAFER SILENT CHECK VALVE
3" HOT WATER HEADER
3" X 2" FABRICATED ELBOW
2" BUTTERFLY VALVE - 3H
3" COLD WATER HEADER
2" GATE VALVE
2" BALL VALVE
STEAM TRAP
2" CHECK VALVE
2" STRAINER
SUCTION PRESSURE GAUGE
CONTROLS ENCLOSURE24
23
22
21
20
19
18
17
16
15
14
13
12
10
11
9
7
6
8
5
4
3
2
3
3
6
1
3
3
1
3
1
1
3
3
6
3
3
3
6
3
1
3
3
3
3
DESCRIPTION
DSH8324
ANSI CLASS 150 FLANGES, SCHED. 40 BLK. PIPE
FLANGED
ANSI CLASS 150 FLANGES, SCHED. 40 BLK. PIPE
ELECTRONIC CONTROLLED
FLANGED CONNECTION
ANSI CLASS 150 FLANGES, SCHED. 40 BLK. PIPE
FLANGED
ANSI CLASS 150 FLANGES, SCHED. 40 BLK. PIPE
ANSI CLASS 150 FLANGES, SCHED. 40 BLK. PIPE
SOCKET WELD X P.E. SCHED. 80 BLK. PIPE
SILENT CHECK VALVE, WAFER STYLE, ANSI CLASS 125/250
ANSI CLASS 150 FLANGES, STAINLESS STEEL PIPE
ANSI CLASS 150 FLANGES, STAINLESS STEEL PIPE
ANSI CLASS 150 FLANGES, STAINLESS STEEL PIPE
SOCKET WELD
CARBON STEEL BALL VALVE
FT-S8-15
STAINLESS STEEL NPT CHECK VALVE
KECKLEY STYLE B
SUCTION PRESSURE - 100 PSI
WITH ALARM OPTION
3
QTY.
SCALE 1:8
TYP. AT 3 PLACES
DETAIL A
SPLIT
SKID
SPLIT
SKID
281/4"233/4"29"
10 3/4"
91/4"
493/4"
801/2"
CLEARANCE
REQD.NEC
42"
0"
2"
8"
20"
32"
48"
60"
76"
81"
0"
1"
86"
14"
36 1/4"
48 1/4"
53 1/2"
58 1/4"
74 1/4"
76 1/4"
4 1/2"
14"
9 1/2"
36 1/4"
53 1/2"
76 1/4"
TOP VIEW
REAR VIEW
FRONT VIEW
SIDE VIEW
ALL STEAM SUPPLY PIPING TO BE SCH. 40 BLK. STL.
ALL CONDENSATE PIPING TO SCH. 80 BLK. STL.
ESTIMATED SYSTEM WEIGHT: 5000 LBS
DISCHARGE CONNECTION ORIENTATION.
CONTRACTOR/ENGINEER TO VERIFY SUCTION &
SOME ITEMS NOT SHOWN FOR CLARITY.
SUBMITTALS.
WILL BE FORWARDED UPON RECEIPT OF APPROVED
FOR CONSTRUCTION. CONSTRUCTION DRAWINGS
THIS DRAWING IS PRELIMINARY LAYOUT ONLY. NOT
ANSI CLASS 125/150 BUTTERFLY VALVE - 250 PSI MAX
MDT1
4
PLANS AND SECTIONS
PROPOSED SEMI INSTANTANEOUS HOT WATER HEATER
HOT WATER2" STEAM
19 18 15 22 2016 21 18
24 24 24
2
13
14
A
14
17
12
1
11 5 8 49 10 13
3 23 4228 6 72
CLIENT:
DRAWING NO.
SHEET OF
TITLE:
NO. DATE NATURE OF REVISION
FILE NAME N:chicago150084MechMDT1_150084_04.dgn
CHKD.
JPCDSGN.
JPCCHKD.
SCALE:
DWN.
7/6/2016PLOT DATE:
jkennedyCAD USER:
PROJ. NO.
MODEL: Default
DATE:
ELP
15-0084
JTK
GAH
CHICAGO, IL 60608
1501 SOUTH CALIFORNIA AVENUE
MT. SINAI HOSPITAL
7
HW HEATER REPLACEMENT PROJ.
7//5/16
MT. SINAI HOSPITAL - DOMESTIC

5. CONDENSATE PUMP
TO EXISTING
EXPANSION TANK
RETURN
HOT WATER
COLD WATER
HOT WATER
DWH #1
DWH #2
DWH #3
15 PSI STEAM
INLET
HOT WATER
INLET
COLD WATER
RETURN
BUILDING
OUTLET
MIXED WATER
SENSOR
METRO MIX
GENERATION SOURCE
RETURN TO HOT WATER
PIPING DIAGRAMS
LEGEND
P
GLOBE VALVE
CHECK VALVE
STRAINER
TEMPERATURE GAUGE
PRESSURE GAUGE
UNION
RECIRCULATION PUMP
CONTROL VALVE
TRAP
HOSE BIB
T
MDT2
5NTS
PROPOSED METRO MIX MIXING VALVE ONE LINE DIAGRAM
PROPOSED STEAM AND HEAT EXCHANGER ONE LINE DIAGRAM
PROPOSED EQUIPMENT SCHEDULE
CLIENT:
DRAWING NO.
SHEET OF
TITLE:
NO. DATE NATURE OF REVISION
FILE NAME N:chicago150084MechMDT2_150084_05.sht
CHKD.
JPCDSGN.
JPCCHKD.
SCALE:
DWN.
7/6/2016PLOT DATE:
jkennedyCAD USER:
PROJ. NO.
MODEL: Default
DATE:
ELP
15-0084
JTK
GAH
CHICAGO, IL 60608
1501 SOUTH CALIFORNIA AVENUE
MT. SINAI HOSPITAL
7
HW HEATER REPLACEMENT PROJ.
7//5/16
MT. SINAI HOSPITAL - DOMESTIC
TT
T
T
P
P
P
P

6. 6
MDT3
N.T.S.
NTS
METRO MIX MIXING VALVE DETAIL
STAINLESS STEEL PIPE
1 1/2" THREADED
STEEL PIPE
1" THREADED STAINLESS
?
?
? ?
?
? ?
?
?
?
?
GAUGE
PRESSURE
GAUGE
PRESSURE
GAUGE
TEMP.
GAUGE
TEMP.
GAUGE
TEMP.
GAUGE
TEMP.
GAUGE
PRESSURE
MOUNTING PLATE
FABRICATED
GAUGE
PRESSURE
MIXING VALVE
1 8/10/16 IDPH COMMENTS GAH
CLIENT:
DRAWING NO.
SHEET OF
TITLE:
NO. DATE NATURE OF REVISION
FILE NAME N:chicago150084MechMDT3_150084_06.sht
CHKD.
JPCDSGN.
JPCCHKD.
SCALE:
DWN.
8/10/2016PLOT DATE:
jkennedyCAD USER:
PROJ. NO.
MODEL: Default
DATE:
ELP
15-0084
JTK
GAH
CHICAGO, IL 60608
1501 SOUTH CALIFORNIA AVENUE
MT. SINAI HOSPITAL
7
HW HEATER REPLACEMENT PROJ.
7//5/16
MT. SINAI HOSPITAL - DOMESTIC
1
1
PROPOSED METRO MIX MIXING VALVE HEADER
EXISTING CONDITION PICTURES
WATER HEATER TO BE LOCATED IN THIS AREA
EXISTING SOUTH WALL OF L41 SEMI INSTANTANEOUS
WATER HEATER TO BE LOCATED IN THIS AREA
EXISTING SOUTH WALL OF L41 SEMI INSTANTANEOUS
AND PRESSURE GAUGE TO BE REMOVED
EXISTING HOT WATER TANK SUPPLY LINES
FOR PROPOSED CONTROL PANELS
PROVIDE 3 1-POLE 20 AMP CIRCUIT BREAKERS
EXISTING LIGHTING PANEL IN MECH RM L41 TO
PIPING TO BE REMOVED
EXISTING WATER TANK AND RELATED
PUMP STATION
WALL SOUTH OF CONDENSATE
EXISTING WEST BOILER ROOM
NEW WATER HEATER
ACCOMODATE
TO BE REWORKED TO
EXISTING STEAM PIPING
BE ABANDONED AND SEALED
EXISTING CATCH BASIN TORECIRCULATIONRETURN
RETURN TO HEATER
MIXEDWATEROUTLET
HOTWATERINLET
COLDWATERINLET

7. SPECIFICATIONS
7
SPC
NTS
CLIENT:
DRAWING NO.
SHEET OF
TITLE:
NO. DATE NATURE OF REVISION
FILE NAME N:chicago150084MechSPC_150084_07.sht
CHKD.
JPCDSGN.
JPCCHKD.
SCALE:
DWN.
7/6/2016PLOT DATE:
jkennedyCAD USER:
PROJ. NO.
MODEL: Default
DATE:
ELP
15-0084
JTK
GAH
CHICAGO, IL 60608
1501 SOUTH CALIFORNIA AVENUE
MT. SINAI HOSPITAL
7
HW HEATER REPLACEMENT PROJ.
7//5/16
MT. SINAI HOSPITAL - DOMESTIC