12-86 4OF7-1321 2 3 4 5 1 6 7 8 9 10 11 12
H V A C SYMBOLS AND ABBREVIATION S
M ABBREVIATIONS PIPING SYMBOLS
AFF ABOVE FINISHED FLOOR �HyyR CHILLED WATER RETURN EXPANSIOM COMPENSATOR (BELLOWS TYPE) AP ACCESS PANEL
—AHU AIR HANDLING UNIT —�HWS— — CHILLED WATER SUPPLY
ITS FLOW SWITCH
ARCH ARCHITECTURAL A COMPRESSED AIR
BD BACKDRAFT DAMPER C CONDENSATE GATE VALVE
BOD BOTTOM OF DUCT
L BOP BOTTOM OF PIPE CWR CONDENSER WATER RETURN GAUGE COCK
BTU BRITISH THERMAL UNIT r
CLG CEILING —CWS— CONDENSER WATER SUPPLY � I � BUTTERFLY VALVE
CD CEILING DIFFUSER RG REFRIGERANT, HOT GAS
CG CEILING GRILLE MOTOR OPERATED BUTTERFLY VALVE
CR CEILING REGISTER RL REFRIGERANT, LIQUID
CHWP CHILLED WATER PUMP RS REFRIGERANT, SUCTION GAS �TS-
CWP CONDENSER WATER PUMP TEST STATION CONNECTION POINT
K CU CONDENSING UNIT — RGP — REFRIGERANT, HOT GAS PUMPOUT --->—FS FLOW STRAIGHTENER
CFM CUBIC FEET PER MINUTE
C.O.P. CHILLER OPERATING PANEL RLP REFRIGERANT LIQUID PUMPOUT � PRESSURE TAPPING IN CHILLER BARREL
DIFF DIFFUSER G GAS
DPT DIFFERENTIAL PRESSURE TRANSMITTER art— QF Y -TYPE STRAINER W/2 -1/2" FIRE HOSE CONNECTION
DA DIRECT ACTING GLOBE VALVE
DG DOOR GRILLE PS PRESSURE SWITCH -
OS & Y (GATE VALVE)
DN DOWN
J DWG DRAWING �� PET COCK OR GATE DUCTWORK
DB DRY BULB
DGP DATA GATHERING PANEL = PIPE GUIDE MVD MANUAL VOLUME DAMPER
EA EACH < PIPE ANCHOR FID FIRE DAMPER
EP ELECTRIC - PNEUMATIC SWITCH
ELEC ELECTRICAL � PLUG VALVE � SD
SMOKE DAMPER
EL ELEVATION �
EQ EQUAL PRESSURE GAUGE � gp
I BACKDRAFT DAMPER
EAT ENTERING AIR TEMPERATURE
PRESSURE REDUCING VALVE MOD
EWT ENTERING WATER TEMPERATURE
MOTOR OPERATED DAMPER
EXH EXHAUST PRV PRESSURE REDUCING VALVE STATION
E/A EXHAUST AIR � FD SD
EF EXHAUST FAN � COMBINATION FIRE /SMOKE DAMPER
ESP EXTERNAL STATIC PRESSURE PRESSURE RELIEF VALVE
PRIMARY
� FICE FLOW TEELEMENT C FOR CFM CUBIC FEET PER MINUTE
FCU FAN COIL UNIT (OR )
FPM FEET PER MINUTE PRIMARY FLOW ELEMENT (VENTURI, � CAPPED END
H FD FIRE DAMPER � FLOW TUBE)
ROUND DUCT
FC FLEXIBLE CONNECTION
FM FLOWMEfER MAGNETIC FLOW METER
�'�' —► UNDERCUT DOOR
GPM GALLONS PER MINUTE — � SOLENOID VALVE
IR INFRARED HEATER SECTION SYMBOL
TEE DOWN SECTION No.
KW KILOWATT
G � TEE UP SHEET WHERE SHOWN
LVG LEAVING
LAT LEAVING AIR TEMPERATURE SUPPLY OR PRECONDITIONED OUTSIDE AIR DUCT
LWT LEAVING WATER TEMPERATURE THERMOMETER
LF LINEAR FEET � FLOW CONTROL VALVE RETURN OR EXHAUST AIRDUCT
M/A MAKE —UP AIR T � INTERNALLY LINED DUCTWORK
MVD MANUAL VOLUME DAMPER THERMOMETER WELL SIZES GIVEN ARE CLEAR INSIDE DIMENSIONS)
MAX. MAXIMUM
MECH MECHANICAL TAP IN VANED ELBOW
F MER MECHANICAL EQUIPMENT ROOM
MOD MOTOR OPERATED DAMPER' --Fhb UNION
MOV MOTOR OPERATED VALVE
MBH THOUSAND BRITISH THERMAL � 2 —WAY AUTOMATIC CONTROL VALVE
UNITS PER HOUR PR RADIUS ELBOW
NPSH NET POSITIVE SUCTION HEAD 3 —WAY AUTOMATIC CONTROL VALVE 1.5Dia.
NC NOISE CRITERIA � ANGLE VALVE
E TYPE
NIC NOT IN CONTRACT A
12x9 SIZE
OPNG OPENING � AUTOMATIC AIR VENT (AAV) CFM AIR QUANTITY
OBD OPPOSED BLADE DAMPER
0/A OUTSIDE AIR �— BALANCING VALVE � CEILING DIFFUSER, -4 -WAY
OSA OUTSIDE SUPPLY AIR ,�, UNLESS SHOWN OTHERWISE
OIP OPENING IN PARTION ABOVE CEILING ��' BALL JOINT O THERMOSTAT
PE PNEUMATIC - ELECTRIC SWITCH —F�— BALL VALVE
D PSI POUNDS PER SQUARE INCH NEW DUCTWORK
BASKET STRAINER RISE IN DUCT IN THE
QTY. QUANTITY ` DIRECTION OF AIRFLOW
QF QUICK FILL
DROP IN DUCT IN THE
Y -TYPE STRAINER WITH D
DIRECTION OF AIRFLOW
R/A RETURN AIR HOSE BIBS VALVE
RG RETURN GRILLE FLEXIBLE CONNECTION
RR RETURN REGISTER 7 PIPE CAP NCH TAKE-OFF
-
RPM REVOLUTIONS PER MINUTE W /MVD
C RM ROOM CHECK VALVE
S/D SMOKE DAMPER COMBINATION PRIMARY FLOW SMOKE DETECTOR
SD SPLITTER DAMPER v ELEMENT &BALANCING VALVE
SP STATIC PRESSURE � REDUCER
� CONCENTRIC REDUCER
S/A SUPPLY AIR �— DIRECTION OF FLOW IN DUCT OR PIPE
SF SUPPLY FAN �� DRAIN VALVE (GATE VALVE
SG SUPPLY GRILLE WITH HOSE COUPLING) � DUCT TRANSITION
B SR SUPPLY REGISTER
�— ECCENTRIC REDUCER
TP TOTAL PRESSURE NOTES:
TG TRANSFER GRILLE o--I ELBOW UP
NP TYPICAL 1. THIS IS A MASTER SHEET: FOR SYMBOLS APPLICABLE TO THIS
UH UNIT HEATER C� ELBOW DOWN PROJECT REFER TO THE DRAWINGS.
2. REFER TO ARCHITECTURAL REFLECTED CEILING PLANS FOR ACTUAL LOCATION
VAV VARIABLE AIR VOLUME EXPANSION LOOP OF ALL AIR DISTRIBUTION DEVICES AND ACCESS PANELS.
A 2W, 3W 2 -WAY, 3 -WAY, ETC. FLANGED PIPE END 3. FOR CLARITY NOT ALL LINED DUCTWORK HAS BEEN IDENTIFIED WITH THE
WB WET BULB TEMPERATURE, OF APPROPRIATE SYMBOL. REFER TO PROJECT SPECIFICATIOS
WP WORKING PRESSURE FLEXIBLE PIPE CONNECTION FOR DISTRIBUTION DUCTWORK RECEIVING LINING.
(WITH CONTROL RODS) 4. ALL DUCT DIMENSIONS ARE CLEAR INSIDE DIMENSIONS.
1 2 3 4 5 6 7 8 9 10 11 12
D
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13 14 15 16 17 18
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ISSUE DATE
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REVISION DATE
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12 -10 -96
3 02 EVISION
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CADD FILE NAME
M101 -RT
DRAWING TITLE
HVAC - LEGEND
SHEET NUMBER
A
M1.01
OF