{"id":28955,"date":"2024-10-17T03:08:34","date_gmt":"2024-10-17T03:08:34","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/smacna-hvacsystemstestingadjustingandbalancing-2002-03e\/"},"modified":"2024-10-24T14:07:34","modified_gmt":"2024-10-24T14:07:34","slug":"smacna-hvacsystemstestingadjustingandbalancing-2002-03e","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/smacna\/smacna-hvacsystemstestingadjustingandbalancing-2002-03e\/","title":{"rendered":"SMACNA HVACSystemsTestingAdjustingandBalancing 2002 03E"},"content":{"rendered":"

This new version has been extensively updated from the 1993 version and includes all of the many changes that have taken place in the HVAC industry. New sections covering VFD, DDC, lab hood exhaust balancing, and the latest changes in balancing equipment and procedures are included.<\/span><\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
3<\/td>\nHVAC SYSTEMS TESTING, ADJUSTING & BALANCING
THIRD EDITION \u2014 AUGUST, 2002 <\/td>\n<\/tr>\n
5<\/td>\nFOREWORD <\/td>\n<\/tr>\n
6<\/td>\nTASK FORCE <\/td>\n<\/tr>\n
7<\/td>\nNOTICE TO USERS OF THIS PUBLICATION <\/td>\n<\/tr>\n
11<\/td>\nTABLE OF CONTENTS
CHAPTERS <\/td>\n<\/tr>\n
14<\/td>\nTABLES <\/td>\n<\/tr>\n
16<\/td>\nFIGURES <\/td>\n<\/tr>\n
23<\/td>\nCHAPTER 1 INTRODUCTION
1.1 INTRODUCTION TO TAB WORK
1.2 THE TAB TECHNICIAN\/TEAM <\/td>\n<\/tr>\n
24<\/td>\n1.3 GENERAL REQUIREMENTS <\/td>\n<\/tr>\n
27<\/td>\nCHAPTER 2 HVAC FUNDAMENTALS
2.1 HEAT FLOW <\/td>\n<\/tr>\n
28<\/td>\nFIGURE 2-1 HEAT TRANSFER BY CONDUCTION AND RADIATION
FIGURE 2-2 CONVECTION HEAT TRANSFER <\/td>\n<\/tr>\n
29<\/td>\nFIGURE 2-3 COUNTER FLOW AIR-STREAMS
FIGURE 2-4 PARALLEL FLOW AIR- STREAMS <\/td>\n<\/tr>\n
30<\/td>\nFIGURE 2-5 CROSS-FLOW AIR-STREAMS
FIGURE 2-6 PARALLEL AND COUNTERFLOW HEAT TRANSFER CURVES <\/td>\n<\/tr>\n
32<\/td>\n2.2 PSYCHROMETRICS <\/td>\n<\/tr>\n
35<\/td>\nFIGURE 2-7 PSYCHROMETRIC CHART (I-P) <\/td>\n<\/tr>\n
36<\/td>\nFIGURE 2-8 PSYCHROMETRIC CHART – TYPICAL CONDITION POINTS (SI) <\/td>\n<\/tr>\n
37<\/td>\nFIGURE 2-9 PSYCHROMETRIC CHART – TYPICAL CONDITION POINTS <\/td>\n<\/tr>\n
38<\/td>\nFIGURE 2-10 SENSIBLE HEATING AND COOLING (I-P) <\/td>\n<\/tr>\n
39<\/td>\nFIGURE 2-11 HUMIDIFICATION AND DEHUMIDIFICATION (I-P) <\/td>\n<\/tr>\n
40<\/td>\nFIGURE 2-12 PSYCHROMETRIC CHART – PROCESSES <\/td>\n<\/tr>\n
41<\/td>\nFIGURE 2-13 COOLING AND DEHUMIDIFYING (I-P)
FIGURE 2-14 HEATING AND HUMIDIFICATION <\/td>\n<\/tr>\n
43<\/td>\nFIGURE 2-15 MIXING OF TWO AIRSTREAMS (SI) <\/td>\n<\/tr>\n
45<\/td>\n2.3 FLUID MECHANICS <\/td>\n<\/tr>\n
46<\/td>\nFIGURE 2-16 TANK STATIC HEAD <\/td>\n<\/tr>\n
47<\/td>\nFIGURE 2-17 VELOCITY PROFILE <\/td>\n<\/tr>\n
48<\/td>\nFIGURE 2-18 PRESSURE CHANGES DURING FLOW IN DUCTS <\/td>\n<\/tr>\n
50<\/td>\nFIGURE 2-19 SAMPLE FITTING LOSS COEFFICIENT TABLE <\/td>\n<\/tr>\n
54<\/td>\nFIGURE 2-20 PUMP WITH STATIC HEAD AND SUCTION HEAD <\/td>\n<\/tr>\n
55<\/td>\nFIGURE 2-21 PUMP WITH SUCTION LIFT <\/td>\n<\/tr>\n
59<\/td>\nCHAPTER 3 ELECTRICAL EQUIPMENT AND CONTROLS
3.1 ELECTRICAL SYSTEMS
3.2 ELECTRICAL SERVICES <\/td>\n<\/tr>\n
60<\/td>\nFIGURE 3-1 SERIES-PARALLEL CIRCUIT
FIGURE 3-2 SINGLE-PHASE AC SERVICE <\/td>\n<\/tr>\n
61<\/td>\nFIGURE 3-3 CURRENT AND VOLTAGE-TIME CURVES AND POWER FACTOR <\/td>\n<\/tr>\n
62<\/td>\nFIGURE 3-4 220-VOL T THREE-WIRE DELTA THREE-PHASE CIRCUIT
FIGURE 3-5 220-VOL T DELTA THREE-PHASE CIRCUIT WITH 110-VOL T SINGLE-PHASE SUPPLY
FIGURE 3-6 120\/208-VOL T FOUR-WIRE WYE CIRCUIT <\/td>\n<\/tr>\n
63<\/td>\n3.3 TRANSFORMERS
FIGURE 3-7 TRANSFORMER WITH TAPPED SECONDARY
3.4 MOTORS <\/td>\n<\/tr>\n
65<\/td>\nFIGURE 3-8 TYPICAL PERFORMANCE OF STANDARD SQUIRREL CAGE INDUCTION MOTORS <\/td>\n<\/tr>\n
66<\/td>\n3.5 MOTOR CONTROLS <\/td>\n<\/tr>\n
67<\/td>\n3.6 VARIABLE FREQUENCY DRIVES
FIGURE 3-9 INTERLOCKED STARTERS WITH CONTROL TRANSFORMERS <\/td>\n<\/tr>\n
68<\/td>\nFIGURE 3-10 VFD ADDED TO EXIST-ING AIR HANDLING UNIT <\/td>\n<\/tr>\n
71<\/td>\nCHAPTER 4 TEMPERATURE CONTROL
4.1 AUTOMATIC TEMPERATURE CONTROL SYSTEMS <\/td>\n<\/tr>\n
72<\/td>\n4.2 CONTROL LOOPS <\/td>\n<\/tr>\n
73<\/td>\nFIGURE 4-1 VALVE THROTTLING CHARACTERISTIC COMPARISON <\/td>\n<\/tr>\n
74<\/td>\nFIGURE 4-2 ATC VALVE ARRANGEMENTS
FIGURE 4-3 TYPICAL MULTIBLADE DAMPERS <\/td>\n<\/tr>\n
75<\/td>\n4.3 CONTROL DIAGRAMS
4.4 CONTROL RELATIONSHIPS <\/td>\n<\/tr>\n
76<\/td>\n4.5 ATC SYSTEM ADJUSTMENT
4.6 TAB\/ATC RELATIONSHIP <\/td>\n<\/tr>\n
77<\/td>\n4.7 CENTRALIZED CONTROL SYSTEMS
FIGURE 4-4 DESKTOP COMPUTER DISPLAYING STATUS OF BUILDING HVAC SYSTEMS <\/td>\n<\/tr>\n
78<\/td>\nFIGURE 4-5 FUNCTIONAL BLOCK DIAGRAM A CENTRALIZED COMPUTER CONTROL SYSTEM <\/td>\n<\/tr>\n
79<\/td>\nFIGURE 4-6 HVAC CONTROLS PANEL WITH ORIGINAL PNEUMATIC CONTROLS <\/td>\n<\/tr>\n
80<\/td>\nFIGURE 4-7 THE SAME HVAC CONTROL PANEL AFTER UPGRADING TO DIRECT DIGITAL CONTROL (DDC).
FIGURE 4-8 PORTABLE COMPUTER PLUGGED INTO ELECTRONIC WALL THERMOSTAT <\/td>\n<\/tr>\n
85<\/td>\nCHAPTER 5 FANS
5.1 FAN CHARACTERISTICS
FIGURE 5-1 CENTRIFUGAL FAN COMPONENTS
FIGURE 5-2 CHARACTERISTIC CURVES FOR FC FANS <\/td>\n<\/tr>\n
86<\/td>\nFIGURE 5-3 CHARACTERISTIC CURVES FOR BI FANS
FIGURE 5-4 CHARACTERISTIC CURVES FOR AIR FOIL
FIGURE 5-5 AXIAL FAN COMPONENTS <\/td>\n<\/tr>\n
87<\/td>\nFIGURE 5-6 CHARACTERISTIC CURVES FOR PROPELLER FANS
FIGURE 5-7 CHARACTERISTIC CURVES FOR VANEAXIAL FANS (HIGH PERFORMANCE)
FIGURE 5-8 TUBULAR CENTRIFUGAL FAN <\/td>\n<\/tr>\n
88<\/td>\nFIGURE 5-9 CHARACTERISTIC CURVES FOR TUBULAR CENTRIFUGAL FANS
5.2 FAN CONSTRUCTION
FIGURE 5-10 FAN CLASS STAN-DARDS (I-P) (SW BI FANS)
FIGURE 5-11 FAN CLASS STAN- DARDS (SI) (SW BI FANS) <\/td>\n<\/tr>\n
89<\/td>\nFIGURE 5-12 DRIVE ARRANGEMENTS FOR CENTRIFUGAL FANS <\/td>\n<\/tr>\n
91<\/td>\nTable 5-1 Typical Fan Rating Table <\/td>\n<\/tr>\n
92<\/td>\nFIGURE 5-13 ARRANGEMENT 1 IN-LINE FANS <\/td>\n<\/tr>\n
93<\/td>\nFIGURE 5-14 ARRANGEMENT 4 IN-LINE FANS
FIGURE 5-15 ARRANGEMENT 9 IN-LINE FANS <\/td>\n<\/tr>\n
94<\/td>\nFIGURE 5-16 CENTRIFUGAL FAN MOTOR LOCATIONS
5.3 FAN AIRFLOW AND PRESSURES <\/td>\n<\/tr>\n
95<\/td>\nFIGURE 5-17 DIRECTION OF ROTATION AND DISCHARGE <\/td>\n<\/tr>\n
96<\/td>\nFIGURE 5-18 FAN TOTAL PRESSURE (TP)
FIGURE 5-19 FAN STATIC PRES-SURE (SP) <\/td>\n<\/tr>\n
97<\/td>\nFIGURE 5-20 FAN VELOCITY PRESSURE (V P )
FIGURE 5-21 TIP SPEED
5.4 FAN\/SYSTEM CURVE RELATIONSHIP <\/td>\n<\/tr>\n
98<\/td>\nFIGURE 5-22 SYSTEM RESISTANCE CURVE
FIGURE 5-23 OPERATING POINT <\/td>\n<\/tr>\n
99<\/td>\nFIGURE 5-24 VARIATIONS FROM DESIGN AIR SHORTAGE
FIGURE 5-25 FAN LAW – RPM CHANGE <\/td>\n<\/tr>\n
100<\/td>\nFIGURE 5-26 EFFECT OF DENSITY CHANGE (CONSTANT VOLUME) <\/td>\n<\/tr>\n
101<\/td>\nFIGURE 5-27 EFFECT OF DENSITY CHANGE (CONSTANT STATIC PRESSURE)
5.5 FAN CAPACITY RATINGS <\/td>\n<\/tr>\n
102<\/td>\nFIGURE 5-28 AMCA FAN TEST – PITOT TUBE
FIGURE 5-29 EFFECT OF DENSITY CHANGE (CONSTANT MASS FLOW) <\/td>\n<\/tr>\n
103<\/td>\nFIGURE 5-30 EFFECTS OF SYSTEM EFFECT <\/td>\n<\/tr>\n
104<\/td>\nFIGURE 5-31 FAN OUTLET EFFECTIVE DUCT LENGTH
FIGURE 5-32 NON-UNIFORM FLOW CONDITIONS INTO FAN INLET <\/td>\n<\/tr>\n
107<\/td>\nCHPATER 6 AIR DISTRIBUTION AND DEVICES
6.1 AIR TERMINAL BOXES <\/td>\n<\/tr>\n
108<\/td>\nFIGURE 6-1 CONSTANT VOLUME FAN-POWERED BOX <\/td>\n<\/tr>\n
109<\/td>\n6.2 VARIABLE AIR VOLUME (VAV) TERMINAL BOXES
FIGURE 6-2 BYPASS-TYPE FAN-POWERED BOX
6.3 OTHER AIRFLOW DEVICES <\/td>\n<\/tr>\n
110<\/td>\nFIGURE 6-3 MULTIBLADE VOLUME DAMPERS <\/td>\n<\/tr>\n
111<\/td>\nFIGURE 6-4 FLOW CHARACTERISTICS FOR A PARALLEL OPERATING DAMPER <\/td>\n<\/tr>\n
112<\/td>\nFIGURE 6-5 FLOW CHARACTERISTICS FOR AN OPPOSED OPERATING DAMPER
6.4 AIR DISTRIBUTION BASICS
Table 6-1 Typical Ratios of Damper to System Resistance for Flow Characteristic Curve <\/td>\n<\/tr>\n
113<\/td>\nFIGURE 6-6 VOLUME DAMPERS <\/td>\n<\/tr>\n
114<\/td>\nFIGURE 6-7 SURFACE (COANDA) EFFECT <\/td>\n<\/tr>\n
115<\/td>\n6.5 ROOM AIR DISTRIBUTION <\/td>\n<\/tr>\n
116<\/td>\nFIGURE 6-8 SOME ELEMENTS AFFECTING BODY HEAT LOSS <\/td>\n<\/tr>\n
117<\/td>\nFIGURE 6-9 FOUR ZONES IN JET EXPANSION <\/td>\n<\/tr>\n
118<\/td>\nFIGURE 6-10 TYPICAL SUPPLY OUTLETS
Table 6-2 Guide to Use of Various Outlets <\/td>\n<\/tr>\n
120<\/td>\nTable 6-3 Recommended Return Air Inlet Face Velocities <\/td>\n<\/tr>\n
121<\/td>\nTable 6-4 Air Outlets and Diffusers Total Pressure Loss Average\u2014in. wg (Pa)
Table 6-5 Supply Registers Total Pressure Loss Average\u2014in. wg (Pa)
Table 6-6 Return Registers Total Pressure Loss Average\u2014in. wg (Pa) <\/td>\n<\/tr>\n
125<\/td>\nCHAPTER 7 AIR SYSTEMS
7.1 INTRODUCTION <\/td>\n<\/tr>\n
126<\/td>\n7.2 TYPES OF AIR SYSTEMS <\/td>\n<\/tr>\n
127<\/td>\nFIGURE 7-1 SINGLE DUCT SYSTEM
FIGURE 7-2 TYPICAL EQUIPMENT FOR SINGLE ZONE DUCT SYSTEM <\/td>\n<\/tr>\n
128<\/td>\nFIGURE 7-3 VARIABLE AIR VOLUME (VAV) SYSTEM <\/td>\n<\/tr>\n
129<\/td>\nFIGURE 7-4 TERMINAL REHEAT SYSTEM <\/td>\n<\/tr>\n
130<\/td>\nFIGURE 7-5 INDUCTION REHEAT SYSTEM <\/td>\n<\/tr>\n
131<\/td>\nFIGURE 7-6 DUAL DUCT HIGH VELOCITY SYSTEM <\/td>\n<\/tr>\n
132<\/td>\nFIGURE 7-7 MULTI-ZONE SYSTEM <\/td>\n<\/tr>\n
133<\/td>\n7.3 AIR SYSTEM DESIGN <\/td>\n<\/tr>\n
135<\/td>\n7.4 DUCT SIZING EXAMPLES
FIGURE 7-8 SYSTEM LAYOUT (I-P UNITS) <\/td>\n<\/tr>\n
136<\/td>\nFIGURE 7-9 SYSTEM LAYOUT (SI) <\/td>\n<\/tr>\n
138<\/td>\n7.5 SUMMARY
FIGURE 7-10 FAN DUCT CONNECTIONS <\/td>\n<\/tr>\n
141<\/td>\nCHPATER 8 HYDRONIC EQUIPMENT
8.1 PUMPS
FIGURE 8-1 TYPICAL CENTRIFUGAL PUMP CROSS SECTION <\/td>\n<\/tr>\n
142<\/td>\nFIGURE 8-2 DESCRIPTIONS OF CNTRIFUGAL PUMPS USED IN HYDRONIC SYSTEMS <\/td>\n<\/tr>\n
143<\/td>\nTable 8-1 Characteristics of Centrifugal Pumps
Table 8-2 Characteristics of Common Types of Pumps <\/td>\n<\/tr>\n
144<\/td>\nFIGURE 8-3 COUPLING ALIGNMENT WITH STRAIGHT EDGE <\/td>\n<\/tr>\n
146<\/td>\nFIGURE 8-4 TYPICAL REQUIRED NPSH CURVE <\/td>\n<\/tr>\n
147<\/td>\n8.2 PUMP \/ SYSTEM CURVE RELATIONSHIP
FIGURE 8-5 PUMP CURVE FOR 1750 RPM OPERATION <\/td>\n<\/tr>\n
148<\/td>\nFIGURE 8-6 TYPICAL DESIGN PUMP SELECTION POINT (FROM ABBREVIATED CURVE)
FIGURE 8-7 SYSTEM CURVE PLOTTED ON PUMP CURVE <\/td>\n<\/tr>\n
149<\/td>\nFIGURE 8-8 TYPICAL OPEN SYSTEMS
FIGURE 8-9 TYPICAL COOLING TOWER APPLICATION POINT
FIGURE 8-10 SYSTEM CURVE FOR OPEN CIRCUIT FALSE OPERATING POINT <\/td>\n<\/tr>\n
150<\/td>\nFIGURE 8-11 SYSTEM CURVE FOR OPEN CIRCUIT TRUE OPERATING POINT
FIGURE 8-12 PUMP OPERATING POINTS <\/td>\n<\/tr>\n
151<\/td>\nTable 8-3 Flow vs Total Head (Cooling Tower Application)
FIGURE 8-13 MULTIPLE PUMPS
FIGURE 8-14 PUMP AND SYSTEM CURVES FOR PARALLEL PUMPING
8.3 PUMP INSTALLATION CRITERIA <\/td>\n<\/tr>\n
152<\/td>\nFIGURE 8-16 GAGE LOCATION
FIGURE 8-15 PUMP AND SYSTEM CURVES FOR SERIES PUMPING
FIGURE 8-17 RELATIVE GAGE ELEVATIONS <\/td>\n<\/tr>\n
153<\/td>\nFIGURE 8-18 EFFECT OF VISCOSITY
8.4 HYDRONIC HEATING AND COOLING SOURCES <\/td>\n<\/tr>\n
154<\/td>\n8.5 TERMINAL HEATING AND COOLING UNTS <\/td>\n<\/tr>\n
159<\/td>\nCHPATER 9 HYDRONIC SYSTEMS
9.1 HYDRONIC SYSTEMS <\/td>\n<\/tr>\n
160<\/td>\nFIGURE 9-1 A SERIES LOOP SYSTEM
FIGURE 9-2 A ONE-PIPE SYSTEM <\/td>\n<\/tr>\n
161<\/td>\nFIGURE 9-3 DIRECT RETURN TWO-PIPE SYSTEM
FIGURE 9-4 REVERSE RETURN TWO-PIPE SYSTEM <\/td>\n<\/tr>\n
162<\/td>\nFIGURE 9-5 EXAMPLE OF PRIMARY AND SECONDARY PUMPING CIRCUITS <\/td>\n<\/tr>\n
163<\/td>\nFIGURE 9-6 RETURN MIX SYSTEM ROOM UNIT CONTROLS
FIGURE 9-7 FOUR PIPE SYSTEM ROOM UNIT <\/td>\n<\/tr>\n
165<\/td>\nFIGURE 9-8 BOILER PIPING FOR A MULTIPLE-ZONE, MULTIPLE-PURPOSE HEATING SYSTEM <\/td>\n<\/tr>\n
166<\/td>\nTable 9-1 Hydronic Trouble Analysis Guide
9.2 HYDRONIC SYSTEM DESIGN <\/td>\n<\/tr>\n
170<\/td>\nFIGURE 9- 9 WATER COOLED CONDENSER CONNECTIONS FOR CITY WATER <\/td>\n<\/tr>\n
171<\/td>\n9.3 HYDRONIC DESIGN PROCEDURES
FIGURE 9-10 COOLING TOWER PIPING SYSTEM <\/td>\n<\/tr>\n
172<\/td>\n9.4 STEAM SYSTEMS <\/td>\n<\/tr>\n
173<\/td>\nFIGURE 9-11 BASIC PIPING CIRCUITS FOR GRAVITY FLOW OF CONDENSATE <\/td>\n<\/tr>\n
174<\/td>\nFIGURE 9-12 BASIC PIPING CIRCUITS FOR MECHANICAL RETURN SYSTEMS
FIGURE 9-13 TYPICAL TWO-PIPE VACUUM STEAM SYSTEM <\/td>\n<\/tr>\n
175<\/td>\nFIGURE 9-14 THERMOSTATIC TRAP
FIGURE 9-15 INVERTER BUCKET TRAP <\/td>\n<\/tr>\n
176<\/td>\nFIGURE 9-16 FLOAT AND THERMOSTATIC TRAP
FIGURE 9-17 TYPICAL CONNECTIONS TO FINNED TUBE HEATING COLIS <\/td>\n<\/tr>\n
179<\/td>\nCHPATER 10 REFERIGERATION SYSTEMS
10.1 REFRIGERATION SYSTEMS <\/td>\n<\/tr>\n
180<\/td>\nFIGURE 10-1 REFRIGERANT CYCLE
10.2 REFRIGERATION TERMS AND COMPONENTS <\/td>\n<\/tr>\n
182<\/td>\n10.3 SAFETY CONTROLS
10.4 OPERATING CONTROLS
10.5 REFRIGERANTS
10.6 THERMAL BULBS AND SUPERHEAT <\/td>\n<\/tr>\n
183<\/td>\nFIGURE 10-2 LOCATIONS OF THERMAL BULBS <\/td>\n<\/tr>\n
184<\/td>\n10.7 COMPRESSOR SHORT CYCLING <\/td>\n<\/tr>\n
187<\/td>\nCHAPTER 11 TAB INSTRUMENTS
11.1 INTRODUCTION
11.2 AIRFLOW MEASURING INSTRUMENTS
FIGURE 11-1 U-TUBE MANOMETER EQUIPPED WITH OVER-PRESSURE TRAPS <\/td>\n<\/tr>\n
188<\/td>\nFIGURE 11-2 INCLINED-VERTICAL MANOMETER
FIGURE 11-3 ELECTRONIC\/ MULTI-METER <\/td>\n<\/tr>\n
189<\/td>\nFIGURE 11-4 PITOT TUBE CONNECTIONS <\/td>\n<\/tr>\n
190<\/td>\nFIGURE 11-5 PITOT TUBE <\/td>\n<\/tr>\n
191<\/td>\nFIGURE 11-6 MAGNEHELIC GAGE <\/td>\n<\/tr>\n
192<\/td>\nFIGURE 11-7 ROTATING VANE ANEMOMETER
FIGURE 11-8 ELECTRONIC ANALOG ROTATING VANE ANEMOMETER <\/td>\n<\/tr>\n
193<\/td>\nFIGURE 11-9 DEFLECTING VANE ANEMOMETER SET
FIGURE 11-10 THERMAL ANEMOMETER <\/td>\n<\/tr>\n
194<\/td>\nFIGURE 11-1 1 FLOW MEASURING HOOD <\/td>\n<\/tr>\n
195<\/td>\nTable 11-1 Airflow Measuring Instruments
11.3 PRESSURE GAGE, CALIBRATED <\/td>\n<\/tr>\n
196<\/td>\nFIGURE 11-12 CALIBRATED PRESSURE GAGES <\/td>\n<\/tr>\n
197<\/td>\nTable 11-2 Instruments for Hydronic Balancing
Table 11-3 Hydronic Measuring Instruments <\/td>\n<\/tr>\n
198<\/td>\nFIGURE 11-13 SINGLE GAGE BEING USED TO MEASURE A DIFFERENTIAL PRESSURE
11.4 ROTATION MEASURING INSTRUMENTS
FIGURE 11-14 SINGLE GAGE BEING USED TO MEASURE A DIFFERENTIAL PRESSURE <\/td>\n<\/tr>\n
199<\/td>\nFIGURE 11-15 DIFFERENTIAL PRESSURE GAGE
Table 11-4 Rotation Measuring Instruments <\/td>\n<\/tr>\n
200<\/td>\nFIGURE 11-16 CHRONOMETRIC TACHOMETER
FIGURE 11-17 DIGITAL CONTACT TACHOMETER <\/td>\n<\/tr>\n
201<\/td>\nFIGURE 11-18 DIGITAL OPTICAL TACHOMETER
FIGURE 11-19 STROBOSCOPE
FIGURE 11-20 MULTI-RANGE, DUAL FUNCTION (OPTICAL\/CONTACT TACHOMETER) <\/td>\n<\/tr>\n
202<\/td>\n11.5 TEMPERATURE FUNCTION TACHOMETER MEASURNG INSTRUMENTS
Table 11-5 Instrumentation for Air & Hydronic Balancing <\/td>\n<\/tr>\n
203<\/td>\nTable 11-6 Instruments for Air Balancing <\/td>\n<\/tr>\n
204<\/td>\nFIGURE 11-21 GLASS TUBE THERMOMETERS
FIGURE 11-22 DIAL THERMOMETER <\/td>\n<\/tr>\n
205<\/td>\nFIGURE 11-23 THERMOCOUPLE
FIGURE 11-24 THERMISTOR THERMOMETER
FIGURE 11-25 INFRARED DIGITAL THERMOMETER <\/td>\n<\/tr>\n
206<\/td>\nFIGURE 11-26 RESISTANCE TEMPERATURE DETECTOR
FIGURE 11-27 ELECTRONIC THERMOMETER <\/td>\n<\/tr>\n
207<\/td>\nTable 11-7 Temperature Measuring Instruments <\/td>\n<\/tr>\n
208<\/td>\nFIGURE 11-28 SLING PSYCHROMETER
FIGURE 11-29 DIGITAL PSYCHROMETER
11.6 ELECTRICAL MEASURING INSTRUMENTS <\/td>\n<\/tr>\n
209<\/td>\n11.7 COMMUNICATION DEVICES
FIGURE 11-30 THERMOHYGROMETER
FIGURE 11-31 CLAMP-ON VOLT AMMETER <\/td>\n<\/tr>\n
210<\/td>\nFIGURE 11-32 ACCESSING AUTOMATION SYSTEM WITH LAPTOP COMPUTER
11.8 HYDRONIC FLOW MEASURING DEVICES <\/td>\n<\/tr>\n
211<\/td>\nFIGURE 11-33 ORIFICE AS A MEASURING DEVICE <\/td>\n<\/tr>\n
212<\/td>\nFIGURE 11-34 FLOW METER TYPES
FIGURE 11-35 ANNULAR FLOW INDICATOR
FIGURE 11-36 CALIBRATED BALANCING VALVE <\/td>\n<\/tr>\n
215<\/td>\nCHAPTER 12 PRELIMINARY TAB PROCEDURES
12.1 INITIAL PLANNING
12.2 CONTRACT DOCUMENTS <\/td>\n<\/tr>\n
216<\/td>\n12.3 SYSTEM REVIEW AND ANALYSIS <\/td>\n<\/tr>\n
217<\/td>\nFIGURE 12-1 SCHEMATIC DUCT SYSTEM LAYOUT <\/td>\n<\/tr>\n
218<\/td>\n12.4 THE AGENDA <\/td>\n<\/tr>\n
219<\/td>\nFIGURE 12-2 INSTRUMENTS SELECTED FOR A SPECIFIC JOB
12.5 PLANNING FIELD TAB PROCEDURES <\/td>\n<\/tr>\n
220<\/td>\n12.6 PRELIMINARY FIELD PROCEDURES <\/td>\n<\/tr>\n
225<\/td>\nCHAPTER 13 GENERAL AIR SYSTEM TAB PROCEDURES
13.1 BASIC FAN TESTING PROCEDURES
13.2 SYSTEM STARTUP
13.3 FAN TESTING <\/td>\n<\/tr>\n
226<\/td>\n13.4 DEFICIENCY REVIEW
13.5 RETURN AND OUTSIDE AIR SETTINGS <\/td>\n<\/tr>\n
227<\/td>\n13.6 ANALYSIS OF MEASUREMENTS
13.7 RECORDING DATA
13.8 PROPORTIONAL BALANCING (RATIO) METHOD
13.9 PERCENTAGE OF DESIGN AIRFLOW <\/td>\n<\/tr>\n
228<\/td>\nFIGURE 13-1 SAMPLE SUPPLY AIR DUCT (PART) <\/td>\n<\/tr>\n
229<\/td>\n13.10 SYSTEM AIRFLOW
13.11 BASIC OUTLET BALANCING PROCEDURES
13.12 STEPWISE METHOD <\/td>\n<\/tr>\n
230<\/td>\nFIGURE 13-2 TYPICAL AIR DIFFUSER CFM MEASUREMENT
13.13 FAN ADJUSTMENT
13.14 WET COIL CONDITIONS
13.15 AIRFLOW TOTALS
13.16 EXHAUST FANS
13.17 FAN DRIVE ADJUSTMENT <\/td>\n<\/tr>\n
231<\/td>\n13.18 DAMPER ADJUSTMENTS
13.19 DUCT TRAVERSES
FIGURE 13-3 MEASURING EXHAUST AIR VELOCITY ON LAB EXHAUST HOOD WITH SASH HEIGHT
13.20 SYSTEM DEFICIENCIES
13.21 FUME HOOD EXHAUST BALANCING PROCEDURES <\/td>\n<\/tr>\n
232<\/td>\nFIGURE 13-4 EXAMPLE OF EXHAUST HOOD AIR BALANCE LABEL
13.22 DUST COLLECTION AND EXHAUST BALANCING PROCEDURES <\/td>\n<\/tr>\n
233<\/td>\nFIGURE 13-5 SAMPLE DUST COLLECTION EXHAUST SYSTEM <\/td>\n<\/tr>\n
235<\/td>\n13.23 AIR FLOW MEASUREMENTS ON DISCHARGE STACKS <\/td>\n<\/tr>\n
236<\/td>\n13.24 INDUSTRIAL VENTILATION
13.25 SELECTION OF INSTRUMENTS <\/td>\n<\/tr>\n
241<\/td>\nCHPATER 14 TAB PROCEDURES FOR SPECIFIC AIR SYSTEMS
14.1 INTRODUCTION
14.2 VARIABLE AIR VOLUME (VAV) SYSTEMS
FIGURE 14-1 TYPICAL VARIABLE AIR VOLUME (VAV) SYSTEM <\/td>\n<\/tr>\n
242<\/td>\nFIGURE 14-2 OPEN LOOP FAN VOLUME CONTROL <\/td>\n<\/tr>\n
243<\/td>\nFIGURE 14-3 CLOSED LOOP FAN VOLUME CONTROL <\/td>\n<\/tr>\n
244<\/td>\nFIGURE 14-4 FAN AND SYSTEM CURVES, CONSTANT SPEED FAN
FIGURE 14-5 FAN AND SYSTEM CURVES, VARIABLE SPEED FAN <\/td>\n<\/tr>\n
249<\/td>\nFIGURE 14-6 SERIES FAN POWERED
FIGURE 14-7 PARALLEL FAN POWERED VAV UNIT
FIGURE 14-8 PAPER STRIP AT VAV BOX RETURN BEFORE BALANCING <\/td>\n<\/tr>\n
250<\/td>\nFIGURE 14-9 PAPER STRIP AT VAV BOX AFTER BALANCING <\/td>\n<\/tr>\n
252<\/td>\nFIGURE 14-10 CONSTANT FAN VAV BOX <\/td>\n<\/tr>\n
253<\/td>\nFIGURE 14-11 INTERMITTENT FAN VAV BOX (PARALLEL) CYCLE
14.3 MULTI-ZONE SYSTEMS <\/td>\n<\/tr>\n
254<\/td>\n14.4 INDUCTION UNIT SYSTEMS
14.5 DUAL DUCT SYSTEMS
FIGURE 14-12 MULTI-ZONE SYSTEM <\/td>\n<\/tr>\n
255<\/td>\nFIGURE 14-13 DUAL DUCT SYSTEM <\/td>\n<\/tr>\n
256<\/td>\n14.6 SPECIAL EXHAUST AIR SYSTEMS
FIGURE 14-14 INDUCTION UNIT SYSTEM <\/td>\n<\/tr>\n
257<\/td>\n14.7 PROCESS EXHAUST AIR SYSTEMS <\/td>\n<\/tr>\n
261<\/td>\nCHAPTER 15 HYDRONIC SYSTEM TAB PROCEDURES
15.1 HYDRONIC SYSTEM MEASUREMENT METHODS
FIGURE 15-1 HYDRONIC FLOW MEASUREMENT <\/td>\n<\/tr>\n
262<\/td>\nFIGURE 15-2 EXTERNAL ULTRASONIC FLOW SENSOR ON PIPE WITH INSULATION REMOVED
FIGURE 15-3 ULTRASONIC FLOW METER <\/td>\n<\/tr>\n
263<\/td>\n15.2 BASIC HYDRONIC SYSTEM PROCEDURES <\/td>\n<\/tr>\n
264<\/td>\n15.3 PIPING SYSTEM BALANCING <\/td>\n<\/tr>\n
265<\/td>\n15.4 BALANCING SPECIFIC SYSTEMS <\/td>\n<\/tr>\n
269<\/td>\n15.5 VARIABLE VOLUME FLOW
FIGURE 15-4 EFFECTS OF VARIATION ON HEAT TRANSFER 20 FLOW F (11 C) .t AT 200 F (93 C)
FIGURE 15-5 PERCENT VARIATION TO MAINTAIN 90% TERMINAL HEAT TRANSFER <\/td>\n<\/tr>\n
270<\/td>\nTable 15-1 Load-Flow Variations
FIGURE 15-6 CHILLED WATER TERMI-NAL FLOW VERSUS HEAT TRANSFER <\/td>\n<\/tr>\n
271<\/td>\nFIGURE 15-7 PUMP WITH VARIABLE SPEED DRIVE
15.6 PRIMARY-SECONDAR Y SYSTEMS
15.7 SUMMER-WINTER SYSTEMS <\/td>\n<\/tr>\n
272<\/td>\nFIGURE 15-8 EXAMPLE OF PRIMARY AND SECONDARY PUMPING CIRCUITS <\/td>\n<\/tr>\n
273<\/td>\nFIGURE 15-9 SUMMER-WINTER SYSTEMS <\/td>\n<\/tr>\n
277<\/td>\nCHAPTER 16 TAB REPORT FORMS
16.1 PREPARING TAB REPORT FORMS
16.2 DESCRIPTION OF USE
System Diagram\u2014TAB 1-02
Air Apparatus Test Report TAB 2-02
Apparatus Coil Test Report TAB 3-02
Gas\/Oil Fired Heat Apparatus Test Report\u2014TAB 4-02
Electronic Coil\/Duct Heater Test Report\u2014TAB 5-02
Fan Test Report\u2014TAB 6-02 <\/td>\n<\/tr>\n
278<\/td>\nRectangular Duct Traverse Report\u2014 TAB 7-02
Round Duct Traverse Report\u2014 TAB 8-02
Air Outlet Test Report (Includes TAB 9A-02, TAB 9B-02 AND TAB 9C-02)
Terminal Unit Coil Check Report\u2014 TAB 11-02
Packaged Chiller Test Report\u2014 TAB 12-02
Package Rooftop\/Heat Pump\/Air Conditioning Unit Test Report\u2014 TAB 13-02
Compressor and\/or Condenser Test Report\u2014TAB 14-02
Cooling Tower or Evaporative Condenser Test Report\u2014TAB 15-02 <\/td>\n<\/tr>\n
279<\/td>\nHeat Exchanger\/Converter Test Report\u2014TAB 16-02
Pump Test Report\u2014TAB 17-02
Balance Valve\/Flow Meter Test Report\u2014TAB 18-02
Boiler Test Report\u2014TAB 19-02
Instrument Calibration Report\u2014 TAB 20-02 <\/td>\n<\/tr>\n
280<\/td>\nTAB REPORT FORMS
TAB 1-02 <\/td>\n<\/tr>\n
281<\/td>\nTAB 2-02 <\/td>\n<\/tr>\n
282<\/td>\nTAB 3-02 <\/td>\n<\/tr>\n
283<\/td>\nTAB 4-02 <\/td>\n<\/tr>\n
284<\/td>\nTAB 5-02 <\/td>\n<\/tr>\n
285<\/td>\nTAB 6-02 <\/td>\n<\/tr>\n
286<\/td>\nTAB 7-02 <\/td>\n<\/tr>\n
287<\/td>\nTAB 7-02 (Cont.) <\/td>\n<\/tr>\n
288<\/td>\nTAB 8-02 <\/td>\n<\/tr>\n
289<\/td>\nTAB 8-02 (Cont.) <\/td>\n<\/tr>\n
290<\/td>\nTAB 9A-02 <\/td>\n<\/tr>\n
291<\/td>\nTAB 9B-02 <\/td>\n<\/tr>\n
292<\/td>\nTAB 9C-02 <\/td>\n<\/tr>\n
293<\/td>\nTAB 10-02 <\/td>\n<\/tr>\n
294<\/td>\nTAB 11-02 <\/td>\n<\/tr>\n
295<\/td>\nTAB 12-02 <\/td>\n<\/tr>\n
296<\/td>\nTAB 13-02 <\/td>\n<\/tr>\n
297<\/td>\nTAB 14-02 <\/td>\n<\/tr>\n
298<\/td>\nTAB 15-02 <\/td>\n<\/tr>\n
299<\/td>\nTAB 16-02 <\/td>\n<\/tr>\n
300<\/td>\nTAB 17-02 <\/td>\n<\/tr>\n
301<\/td>\nTAB 18-02 <\/td>\n<\/tr>\n
302<\/td>\nTAB 19-02 <\/td>\n<\/tr>\n
303<\/td>\nTAB 20-02 <\/td>\n<\/tr>\n
307<\/td>\nAPPENDIX A DUCT DESIGN TABLES & CHARTS
FIGURE A-1 DUCT FRICTION LOSS CHART (I-P) <\/td>\n<\/tr>\n
308<\/td>\nFIGURE A-2 DUCT FRICTION LOSS CHART (SI) <\/td>\n<\/tr>\n
309<\/td>\nTable A-1 Duct Material Roughness Factors <\/td>\n<\/tr>\n
310<\/td>\nFIGURE A-3 DUCT FRICTION LOSS CORRECTION FACTORS <\/td>\n<\/tr>\n
311<\/td>\nTable A-2 Circulation Equivalents of Rectangular Ducts for Equal Friction and Capacity (I-P) (2) Dimensions in Inches <\/td>\n<\/tr>\n
312<\/td>\nTable A-2 Circulation Equivalents of Rectangular Ducts (continued) <\/td>\n<\/tr>\n
313<\/td>\nTable A-3 Circular Equivalents of Rectangular Ducts for Equal Friction and Capacity (SI) (2) Dimensions in mm <\/td>\n<\/tr>\n
314<\/td>\nTable A-3 Circular Equivalents of Rectangular Ducts for Equal Friction and Capacity (SI) (2) Dimensions in mm (continued) <\/td>\n<\/tr>\n
315<\/td>\nTable A-4 Velocities\/Velocity Pressures (I-P)
FIGURE A-4 VELOCITIES\/VELOCITY PRESSURES (I-P) <\/td>\n<\/tr>\n
316<\/td>\nTable A-5 Velocities\/Velocity Pressures (SI)
Table A-6 Angular Conversion <\/td>\n<\/tr>\n
317<\/td>\nTable A-7 Loss Coefficients for Straight-Through Flow
FIGURE A-5 AIR DENSITY FRICTION CHART CORRECTION FACTORS <\/td>\n<\/tr>\n
318<\/td>\nFIGURE A-6 LOUVER VELOCITY
Table A-8 Recommended Criteria for Louver Sizing <\/td>\n<\/tr>\n
319<\/td>\nTable A-9 Typical Design Velocities for Duct Components <\/td>\n<\/tr>\n
320<\/td>\nFITTING LOSS COEFFICIENT TABLES
Table A-10 Elbow Loss Coefficients <\/td>\n<\/tr>\n
321<\/td>\nTable A-10 Elbow Loss Coefficients (continued) <\/td>\n<\/tr>\n
322<\/td>\nTable A-10 Elbow Loss Coefficients (continued) <\/td>\n<\/tr>\n
323<\/td>\nTable A-11 Transition Loss Coefficients <\/td>\n<\/tr>\n
324<\/td>\nTable A-11 Transition Loss Coefficients (continued) <\/td>\n<\/tr>\n
325<\/td>\nTable A-12 Rectangular Branch Connection Loss Coefficients <\/td>\n<\/tr>\n
326<\/td>\nTable A-12 Rectangular Branch Connection Loss Coefficients (continued) <\/td>\n<\/tr>\n
327<\/td>\nTable A-12 Rectangular Branch Connection Loss Coefficients (continued) <\/td>\n<\/tr>\n
328<\/td>\nTable A-12 Rectangular Branch Connection Loss Coefficients (continued) <\/td>\n<\/tr>\n
329<\/td>\nTable A-13 Round Branch Connection Loss Coefficients <\/td>\n<\/tr>\n
330<\/td>\nTable A-13 Round Branch Connection Loss Coefficients (continued) <\/td>\n<\/tr>\n
331<\/td>\nTable A-13 Round Branch Connection Loss Coefficients (continued) <\/td>\n<\/tr>\n
332<\/td>\nTable A-13 Round Branch Connection Loss Coefficients (continued) <\/td>\n<\/tr>\n
333<\/td>\nTable A-14 Miscellaneous Fitting Coefficients <\/td>\n<\/tr>\n
334<\/td>\nTable A-14 Miscellaneous Fitting Coefficients (continued) <\/td>\n<\/tr>\n
335<\/td>\nTable A-14 Miscellaneous Fitting Coefficients (continued) <\/td>\n<\/tr>\n
336<\/td>\nTable A-14 Miscellaneous Fitting Coefficients (continued) <\/td>\n<\/tr>\n
337<\/td>\nHVAC EQUATIONS (I-P)
Air Equations (I-P) <\/td>\n<\/tr>\n
338<\/td>\nFan Equations (I-P)
Pump Equations (I-P)
Hydronic Equivalents (I-P) <\/td>\n<\/tr>\n
339<\/td>\nHydronic Equations (I-P)
Electric Equations (I-P)
Table A-15 Converting Pressure In Inches of Mercury to Feet of Water at Various Water Temperatures <\/td>\n<\/tr>\n
340<\/td>\nTable A-16 Air Density Correction Factors (I-P) <\/td>\n<\/tr>\n
341<\/td>\nHVAC EQUATIONS (SI)
Air Equations (SI) <\/td>\n<\/tr>\n
342<\/td>\nFan Equations (SI)
Pump Equations (SI)
Hydronic Equations (SI) <\/td>\n<\/tr>\n
344<\/td>\nTable A-17 Air Density Correction Factors (SI) <\/td>\n<\/tr>\n
345<\/td>\nSI UNITS AND EQUIVALENTS
Table A-18 SI Units (Basic and Derived) <\/td>\n<\/tr>\n
346<\/td>\nTable A-19 SI Equivalents <\/td>\n<\/tr>\n
347<\/td>\nTable A-20 Sound Design Equations <\/td>\n<\/tr>\n
348<\/td>\nTable A-20 Sound Design Equations (continued) <\/td>\n<\/tr>\n
349<\/td>\nFITTING EQUIVALENTS (WATER)
Table A-21 Equivalent Length in Feet of Pipe for 90 Elbows
Table A-22 Equivalent Length in Meters of Pipe for 90 Elbows
Table A-23 Iron and Copper Elbow Equivalents
FIGURE A-7 ELBOW EQUIVALENTS OF TEES AT VARIOUS FLOW CONDITIONS <\/td>\n<\/tr>\n
350<\/td>\nTable A-24 Properties of Saturated Steam (I-P)
Table A-25 Properties of Saturated Steam (SI) <\/td>\n<\/tr>\n
351<\/td>\nSTEAM PIPING (I-P)
Table A-26 Steam Piping (I-P) Flow Rate of Steam in Schedule 40 Pipe at Initial Saturation Pressure of 3.5 and 12 psig
Table A-27 Comparative Capacity of Steam Lines at Various Pitches for Steam and Condensate Flowing in Opposite Directions <\/td>\n<\/tr>\n
352<\/td>\nTable A-28 Pressure Drops In Common Use for Sizing Steam Pipe (For Corresponding Initial Steam Pressure)
Table A-29 Length in Feet of Pipe to be Added to Actual Length of Run \u2014 Owing to Fittings \u2014 to Obtain Equivalent Length <\/td>\n<\/tr>\n
353<\/td>\nTable A-30 Steam Pipe Capacities for Low Pressure Systems (For Use on One-Pipe Systems or Two-Pipe Systems in which Condensate Flows Against the Steam Flow) <\/td>\n<\/tr>\n
354<\/td>\nTable A-31 Return Main and Riser Capacities for Low-Pressure Systems\u2014Pounds per Hour <\/td>\n<\/tr>\n
355<\/td>\nSTEAM PIPING (SI)
Table A-32 Flow Rate in kg\/h of Steam in Schedule 40 Pipe at Initial Saturation Pressure of 15 and 85 kPa Above Atmospheric
Table A-33 Comparative Capacity of Steam Lines at Various Pitches for Steam and Condensate Flowing in Opposite Directions <\/td>\n<\/tr>\n
356<\/td>\nTable A-34 Equivalent Length of Fittings to be Added to Pipe Run <\/td>\n<\/tr>\n
357<\/td>\nTable A-35 Steam Pipe Capacities for Low-Pressure Systems <\/td>\n<\/tr>\n
358<\/td>\nTable A-36 Return Main and Riser Capacities for Low-Pressure Systems \u2014 kg\/h <\/td>\n<\/tr>\n
359<\/td>\nSample Specification for Testing, Adjusting and Balancing <\/td>\n<\/tr>\n
360<\/td>\nREFERENCES <\/td>\n<\/tr>\n
363<\/td>\nGLOSSARY
-A – <\/td>\n<\/tr>\n
365<\/td>\n-B – <\/td>\n<\/tr>\n
366<\/td>\n-C – <\/td>\n<\/tr>\n
370<\/td>\n-D – <\/td>\n<\/tr>\n
372<\/td>\n-E – <\/td>\n<\/tr>\n
373<\/td>\n-F – <\/td>\n<\/tr>\n
376<\/td>\n-G
-H – <\/td>\n<\/tr>\n
378<\/td>\n-I – <\/td>\n<\/tr>\n
379<\/td>\n-J –
-K –
-L – <\/td>\n<\/tr>\n
380<\/td>\n-M – <\/td>\n<\/tr>\n
381<\/td>\n-N – <\/td>\n<\/tr>\n
382<\/td>\n-O – <\/td>\n<\/tr>\n
383<\/td>\n-P – <\/td>\n<\/tr>\n
386<\/td>\n-R – <\/td>\n<\/tr>\n
387<\/td>\n-S – <\/td>\n<\/tr>\n
392<\/td>\n-T – <\/td>\n<\/tr>\n
394<\/td>\n-U –
-V – <\/td>\n<\/tr>\n
395<\/td>\n-W – <\/td>\n<\/tr>\n
396<\/td>\n-Z – <\/td>\n<\/tr>\n
399<\/td>\nINDEX <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

HVAC Systems – Testing, Adjusting and Balancing, 3rd Edition<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
SMACNA<\/b><\/a><\/td>\n2002<\/td>\n407<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":28956,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2703],"product_tag":[],"class_list":{"0":"post-28955","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-smacna","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/28955","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/28956"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=28955"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=28955"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=28955"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}