كتاب HVAC Licensing Exam Study Guide

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HVAC Licensing Exam Study Guide
Rex Miller
Mark R. Miller
Second Edition

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Contents
Preface
Acknowledgments
Introduction
PART A HEAT
Chapter 1 HEAT SOURCES
Steam and Hot-Water Heating
Multiple-Choice Exam
True-False Exam
Answers Key
Chapter 2 HEATING SYSTEMS
Hot-Water Heating
Hot-Water Baseboard Heating
Multiple-Choice Exam
True-False Exam
Answers Key
Chapter 3 BOILERS, BURNERS, AND BURNER SYSTEMS
Boiler Codes and Standards
Multiple-Choice Exam
True-False Exam
Answers Key
PART B PIPING, DUCTWORK, AND VENTILATION
Chapter 4 PIPING SYSTEMS
Pipe and Pipe Materials
Multiple-Choice Exam
9True-False Exam
Answers Key
Chapter 5 DUCTWORK SIZING
Ductwork for Add-On Residential Evaporators
Remote Systems
Single-Package Rooftop Units
Smoke Detectors
Firestats
Return-Air Systems
Acoustical Treatment
Volume Dampers
Multiple-Choice Exam
True-False Exam
Answers Key
PART C AIR-CONDITIONING EQUIPMENT
Chapter 6 REFRIGERANTS
Refrigerants: New and Old
Molecular Weights
Flammability
Toxicity
Skin Effects
Oral Toxicity
Central-Nervous-System Effects
Cardiac Sensitization
Thermal Decomposition
Reaction of Freon to Refrigeration Materials
Refrigerant Properties
Detecting Leaks
Ozone-Depleting Refrigerants
Phase-Out Schedule for HCFCS, Including R-22
Availability of R-22
Replacement for R-22
Multiple-Choice Exam
True-False Exam
Answers Key
10Chapter 7 COOLING AND DISTRIBUTION SYSTEMS
Condensers
Chillers
Cooling Towers
Evaporative Condensers
New Developments
Multiple-Choice Exam
True-False Exam
Answers Key
PART D REFRIGERATION
Chapter 8 REFRIGERATION EQUIPMENT AND PROCESSES
Working with Water-Cooling Problems
Fouling, Scaling, and Corrosion
Corrosion
Control of Algae, Slime, and Fungi
System Cleaning Treatments
Safety
Solvents and Detergents
Multiple-Choice Exam
True-False Exam
Answers Key
Chapter 9 FILTERS AND AIR FLOW
Air Movement
Comfort Conditions
Designing a Perimeter System
Multiple-Choice Exam
True-False Exam
Answers Key
Chapter 10 MAINTENANCE, SERVICING, AND SAFETY
General Safety Precautions
Servicing the Refrigerator Section
Compressor Replacement
Troubleshooting Compressors
11Multiple-Choice Exam
True-False Exam
Answers Key
Chapter 11 HUMIDIFICATION, DEHUMIDIFICATION, AND PSYCHROMETRICS
Temperature
Converting Temperatures
Psychrometrics
Pressures
Multiple-Choice Exam
True-False Exam
Answers Key
PART E CODES AND CERTIFICATIONS
Chapter 12 EPA-REFRIGERANT RECLAIMERS
Newer Refrigerants
Freon Refrigerants
Handling Refrigerants
Lubricants
Multiple-Choice Exam
True-False Exam
Answers Key
Chapter 13 HEATING CIRCUITS
Basic Gas Furnace Operation
Basic Electric-Heating System
Ladder Diagrams
Manufacturer’s Diagrams
Field Wiring
Heat Pumps
High-Efficiency Furnaces
Multiple-Choice Exam
True-False Exam
Answers Key
Chapter 14 SAFETY ON THE JOB
12Basic Safety Considerations
Safety and the Cooling Tower
Solvents and Detergents
Handling Cylinders
Pressurizing
Electrical Safety
Fiberglass Fans
Lifting
Handling Refrigerants Safely
Multiple-Choice Exam
True-False Exam
Answers Key
Chapter 15 TRADE ASSOCIATIONS AND CODES
Codes
Trade Associations
Web Site Sources
GLOSSARY
DECODING WORDS
Instructions
Decoding Answer Key
APPENDICES
APPENDIX 1: Professional Organizations
APPENDIX 2: Tables: Inch Equivalents, Pipe Sizes
APPENDIX 3: More Tables: Weights and Measures, Capacitors
APPENDIX 4: Internet Resources; Frequently Asked Questions
INDEX
dex
A Ad
justment screw, throttle
After 2020
Air:
-to-air
capacities
filtration
flow distribution
movement
noise
required
volume
-to-water
Algae
control
Alkalinity
Aluminum
American Boiler Manufacturers’ Association
American Gas Association
Ammonia
Anodic metals
ANSI
Anti-smudge ring
Applications for fans
Asbestos
ASHRAE
ASME
Aspiration
Association:
acronyms
trade
ASTM
477B B
acteria
Belt-driven fans
Biological organism
Bleeder resistor
Bleed-off
Blends, refrigerant
Blower unit
BOCAI
Boiler codes and standards
Boilers, burners and burner systems
Brass
Breathing
Bronze
Btu
Building products directory
C Ca
lcium chloride
Calculating water in sump
Calculating water in tank
Capacity control
solid state
Capillary tube
Carbon dioxide
Carbonate
Cardiac sensitization
Casing:
diffusers
grille
noise
panels
Celsius
Charging cylinder
Chart, psychrometric
Chilled water systems
Chiller
cutaway
water or brine
478Chlorofluorocarbons, CFCs
Circulating pump
Cleaning treatments
Closed-system installations
CNS (central nervous system)
Codes, international
Comfort conditions
Compartment:
freezer
provision
Compressed hot air
Compression
Compressor
replacements
troubleshooting
Concrete
Condensate
Condensation
Condenser
air-cooled
water-cooled
water-cooled, co-axial
Condensing:
applications
air-cooled
Conduction
Connecting water valves
Construction:
materials
waste
Consumers
Consumption, power
Control center
Controls
Convection
Conversion kits
Cooled-air drop
Cooler:
evaporative
fluid
479Cooling:
range
tower
cleaning
design of
forced-draft
location
natural-draft
ratings
small induced-draft
system
Cooling, add-on
Copper
Corrosion
Corrosive acids
Counterflow path
Cross or tee
Cross-over tower, double-flow
Crystals
Cubic feet per minute
Cycle:
lubrication
motor cooling
refrigeration
Cylinders
handling
storing
D De
cibels
Degrees:
Celsius
Fahrenheit
Dehydrator cycle
Developments, new
Devices, pressure measuring
Diagrams:
ladder
manufacturers’
480Diffusers
Diffusers and grilles:
selection of
sill-mounted
Discharge lines
Disposable filters
Drier, filter
Drop
Ducturn
Ductwork:
for add-on evaporators
sizing
Dust
E Effe
ctive area
EFR, fan relay
Electric:
heating system
basic operation
Electrical safety
Electrolyte
Electron path
Enthalpy
EPA
Equivalent direct radiation
Ethyl chloride
Evaporation, latent heat of
Evaporative:
condensers
process
systems
units
Evaporator
Exchanger, heat
F Fa
ns:
and blowers
481classifications
drives
driving methods
and mechanical ventilation
operation of
velocity
Feet per second
Fiberglass fans
Field test kit
Field tests
Field wiring
Filter:
drier
feed through
Fire and smoke dampers
Firestats
Flammability
Fluid cooler, operation of
Forced hot-water heating systems
Fouling
Free area
Freon
properties
refrigerants
solvents
Friction pressure drop
FRP
Fungi
control
Furnace
combustion process
controls
gas
high-efficiency
hot-air
operation
Pulse
sequence of operation
troubleshooting
Fusible link
482G Ga
lvanic action
Gauge pressure
Global codes and standards
Glycols
Grille
types of
Grille and diffuser:
ceiling-mounted
types of
GSR-14Q
H Ha
ir-felt insulation
Hardness
Heat
exchanger
load
loss, ground
multiplier
pumps
relationships
removal
Heated-air rise
Heating:
hot-water
steam
systems
Heat-pump combinations
HFCs
High-rise buildings
Horsepower
Hot gas:
arrangements
blowing
hot-water heating
HR, heating relay
Humidity
temperature
483HVAC
experience
industry links
Hydrolysis
Hydronic:
hot-water system
Institute
Hygrometer
I I
CBO
ICC
Industrial waste
Installation:
attic fans
blower
coil and filter
Insulated:
pipe fittings
pipelines
Insulation
cork
foam
pipe
sheet
International:
Building Code
codes
Energy Conservation Code
Fire Code
Mechanical Code
Internet, reference site
IOS
Iron and copper
K Ke
lvin scale
L
484Laboratory analysis
Ladder diagrams
Leak:
detecting
detection envelope
detector, electronic
rates
repair
Lifting
Linear grilles
Liquid refrigerant
lines
sub-cooled
Locating returns
Low-pressure hot-water heating systems
Low-voltage wiring
LPG, low pressure gas
Lubricants
Luminaire diffusers
M Ma
gnahelic manometer
Magnesium alloys
Maintenance:
fu
rnace
personnel
Make-up water
Manifolds
Manometer, well-type
Manufacturer’s diagrams
Mechanical efficiency
Metals
Methyl chloride
MH fluid cooler
Moisture and refrigerants
Molded-cork insulation
Molecular weights
Montreal Protocol
Motor cooling cycle
485Multiple unit installation
N NAT
E
National Electrical Code
Natural draft tower
NC 35
curve
New developments
New systems
purchasing
NIST
Nitrogen
dry
N2
Noise criteria
Normal operation
NPT, national pipe thread
NRCC
Nylon
O Oc
cupied zone
Odor
Operating pressure
Optional devices
Oral toxicity
Orlon-acrylic fiber
Outlet:
area
ratings
velocity
Oxygen
Ozone depletion
refrigerants
P Pe
rforated-face diffuser
486Perimeter system
Permagum
pH
Phase-out
Pipe:
classifications
fittings
insulation
and pipe materials
Piping:
arrangements
ductwork, and ventilation
insulation
Plant life
Plastics
Plenum
Polyethylene
Polymer structure
Polyvinyl alcohol
Pressure
considerations
-drop
gauge
Pressures
atmospheric
Pressurizing
Problems, water-cooling
Psychrometer, diagnostic
Psychrometrics
Pump head
Purging valve
Q Qu
ick connect
Quiet rooms
R R-
22
availability
487Radiant panels:
floors
heating
Radiated noise
Radiation
Rain-like pattern
Recirculating water
Recycling, refrigerants
Refrigerant
density
enthalpy
flow control
Freon
handling
handling safely
newer
odor
oil mix
pressure
properties
R-134a
R-401B
R-402A
R-402B
R-502
recycling
specific gravity
temperature
toxicity
volume
Refrigeration:
piping
system, pressurizing
Refrigeration oil
Refrigerator, servicing
Registers
grilles, types, of
Regulators and gauges
Reheat coil
Relative humidity
488permissible
Remote systems
Repair, leak
Replacement:
compressor
R-22
Residential condensing unit
Residual velocity
Return grilles
Return-air systems
Returns, sizing
Return-trap heating system
Rock-cork insulation
Rooftop condensers
Room air motion
Round diffusers
Run winding
S S
afety
electrical
precautions
SBCCI
Scale:
formation
identification
remover
Scaling, prevention
Sealed:
compressor
motor
Selecting a fan
Sensitive controls
Servicing
Shell:
coil condenser
condensers
Silica
Silver
489Single package rooftop units
Sizing returns
Skin effects
Slats
Slime
control
Sling psychrometer, Bacharach
Slow recovery time
Smoke detectors
Solid state, capacity control
Solvents
Solvents and detergents
Sound power level
Sound requirements
Spread
Stainless steel
Stand-pipe method
Static pressure
Steam:
distribution
heating systems
and hot-water heating
pressure
Steel
Suction lines, Interconnection of
Sulfate scale
Sulfur dioxide
Sump
draining
Surface temperature
Symbol, safety
System, service
T TD
S (total dissolved solids)
Teflo-TFE-fluorocarbon
Temperature
absolute
conversion
490converting
critical
differential
dry bulb
Terminal boxes
Terms, cooling system
Thermal decomposition
Thermostat location
Thirty-day repair period
Throw
Top-mounted evaporator
Total pressure
Tower:
airflow
atmospheric type
counterflow, spray-filled
crossflow
forced-draft
induced-draft
life
mechanical-draft
older
types
Toxicity
Trade associations
Treatment, acoustical
Tubing:
insulation
types of
two-pipe high-pressure systems
two-pipe medium-pressure systems
U UL
, Underwriters’ Laboratory
Up-flow:
evaporators
installation
V
491Vacuum:
-air-line system
-return-line-steam-heating system
systems
Valve:
Robertshaw
Rodgers
Vane motor-crank angles
Vapor system
Vascocel
Vectrol
Velocity:
of fans
pressure
Ventilation methods
Vertical face banes
Vinyl
Volume dampers
Vortex shredding
W Wa
ter:
-cooled condensers
-cooling problems
hammer
-level adjustment
level, boiler
pure
-regulating valve
system, using a tower
valves
-to-water
Web site sources
Wet-bulb temperature
Wind drift
Wire, sizes
Wool-felt
492Z Zinc

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