Home Inspection Book - PowerPoint for Ch 08
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Transcript Home Inspection Book - PowerPoint for Ch 08
The Home Inspection Book: A
Guide for Professionals
By Marcia Darvin Spada
Copyright,
Thomson/South-Western,
2003, Revised, 2006
Chapter 8
2
Inspecting the Plumbing, Heating, and Air
Conditioning Systems
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Chapter 8 Key Terms
3
Aquifer
Backflow preventer
Boiler
BTU
Cesspool
Cleanout
Compressor
Condenser
Convector
Evaporator
Float valve
Forced warm air
system
Freon
Gate valve
Globe valve
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Chapter 8 Key Terms continued
4
Heat exchanger
Hydronic system
Main soil stack
Main vent stack
Nonpotable water
Plenum
Plumbing fixture
Potable water
Pressure regulator
valve (PRV)
Refrigerant
Septic system
Soil or waste stack
Temperature pressure
relief valve
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Chapter 8 Key Terms continued
5
Thermocouple
Thermostat
Trap
Valve
Vent system
Water hammer arrestor
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Inspecting the Public Water Supply
Entrance
Inspection
6
points:
Location of main
service line
Condition of pipe
see if leaky or rusted
Check if pipe is lead
Location of water meter
Check if pressure
reducing value near
water meter
Locate main shut-off
valve and check
condition
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
A home’s layout pattern with well water
and septic system
7
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Well Pumps and Storage Tanks
Pumps
Piston
Jet (ejector)
Submersible
8
Storage Tanks
Pressure tank
Elastic pressure Cells
Gravity tank
Reservoirs
Inspection point:
Run water-once pressure
tank is empty enough,
pump should kick in
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Components of a jet pump
9
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
A residential piping system
10
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Typical Cast Iron Soil Pipe Fittings
11
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
A House Septic System
12
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Types of Pipe Valves
13
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Types of Traps
14
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Inspecting the Pipes
Inspection
15
points:
Insulation
Leakage
Rust and corrosion
Pipe sizing for
adequate pressure
Noisy pipes
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Types of Heating
Systems
Hot water System
Steam System
Forced water air system
Electrical resistance system
16
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Heating Fuel and Power
Electric Heat
Oil-Fired Heat
Gas-Fired Heat
17
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Single-Pipe Hydronic System
18
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Single-pipe Steam Heating System
19
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Warm Air Furnaces
20
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Oil-Fired Warm Air Furnace
21
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Inspecting the Furnace
Inspection
22
Points:
Each room has
convector, radiator, etc.
Condition of furnace
Safety switch
Ventilation
Age of heating system
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Inspecting the Furnace-Oil and Gas
Fired
Oil
Gas
23
furnace inspection
Location of oil storage
tank
Aboveground or
underground
Underground leakage
into soil
Aboveground leaks,
rust, corrosion
furnace inspection
Pilot light
Gas burners inside heat
exchanger
Black iron pipe carrying
gas from source
Shut off valve for pipe
Drip leg
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Inspecting the Furnace-Hot Water
(hydronic) And Hot Air Systems
24
Inspection points-hot
water:
Turn on thermostat to
check circulator pumps
Heating water circulating
through system
Temperature pressure
gauge
Turn off thermostat to
make sure system shuts
down
Inspection points-hot air:
Turn on thermostat and let
system cycle
Listen for blowers
Turn off thermostat and
check if blowers shut
down
Remove and check air
filter
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Air Conditioner Components
25
Refrigerant (freon)
Evaporator
Compressor
Condenser
Air conditioners may be
water-cooled or aircooled
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
A Ground Source Heat Pump
26
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Types of Water Heaters
Gas water
heater
Electric water
heater
Summer-winter
hookup
27
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Inspecting the Water Tank
Inspection
28
points:
Pressure temperature
relief valve with pipe
extension
Ascertain recovery
rate of water in tank
Set no higher than
120 degrees
Ventilation
Flue pipe to chimney
for gas, propane and
oil heaters
Gas leaks
Height of burner
flame
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Kitchen Cabinets
29
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Kitchen Sink Components
30
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
Inspecting the Sinks
Inspection Points-sink:
Water flow
Drainage
Leakage
P or S traps
Connection to dishwasher
Fastened to counter or
wall
31
Inspection Points-faucet:
Shutoff without leakage
Stains
Hot and cold flow through
proper side
Securely fastened to
countertop
Missing handles
Rust, corrosion, cracks
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems
A Typical Bathroom Sink
32
Chapter 8 Inspecting the
Plumbing, Heating and Air
Conditioning Systems