ASHRAE/NFPA
air quality, ventilation and combustion appliance venting
ratio 1 CFM out = 1 CFM in so 100 if a mechanical fan is moving 100 CFM of air, how much air will be
CFM replaced replaced per minute
exhaust appliances/HVAC system name 2 causes of depressurization in a CAZ
name 2 conditions that can affect baseline CAZ pressure differential
wind/pinched reference hose
measurements
volume of CAZ/input capacity of what 2 important factors are needed to determine if there is adequate
HVAC combustion air
smoke/mirror name 2 acceptable tools for visually accessing spillage
incomplete combustion name a way carbon monoxide is generated
1/4" rise per foot what is the minimum required slope of a vent connector
what are 2 points of data collected during combustion safety inspection
CO testing, spillage
testing
heat, oxygen, fuel what are 3 things needed for combustion to occur
install rain gutter and downspouts what are two basic exterior moisture control strategies
according to BPI what is the appropriate speed to gas sniff fittings at
1" per second
the meter or gas appliances
apply soapy solution to confirm the what action is taken to verify a positive gas sniff reading
leak
make a note and recommend what's an important action when fuel line deficiencies are identified
servicing by a qualified professional
emergnacy shut-off(swith/valve)/ what are two components of the fuel delivery system
fuel line (gas or elec)
odorless, colorless, difficult to what are 3 characteristics of Radon
detect, radioactive
basements and crawl spaces what are 2 potential entry points for Radon
moisture/poorly ventilated what are 2 conditions for mold growth
environment
insulation/lead pipe insulation what are two common building materials that might contain asbestos
when it's friable: breaks down and when does asbestos become hazardous
becomes airborne
older paint/pipes what are two sources of hazardous lead in homes
plastic lining/interior paint what are two types of vapor control materials
after entering the home, what is the maximum allowable CO monitor
70ppm
reading that may allow the audit to continue