Residential Installations and codes (110104h) Flashcards
The safety of the workers and job sites is governed by which code?
OH & S
The installation of gas appliances and piping is governed by which code?
B149.1-05 CAN/CSA
Natural gas and propane installation code
The part of the job where the pentrations to the exterior are installed is the?
Rough in stage
The part of the job where the furnace is placed in a permanent position is the?
Ductwork stage
Whose responsibility is it to ensure the job is done properly and to the applicable code?
The installer
The clearance between an exhaust hood and regulator vent on natural gas or propane line coming into a building is?
3 feet or 1 meter 39 inches in real job site
Hoods to the exterior should be minimum how far off ground?
18 inches
What size is dryer vent?
4 inches
What size is range hood?
6 inch
What size of duct hanger is used on return air duct?
10 inch
What size of duct hanger is used on hot air duct?
11 inches
What is the easiest way to open drive cleats ?
With a screwdriver
What does hrv stand for?
Heat recovery ventilation
What does ABC stand for?
Alberta building code
What does the ABC ( Alberta building code) list?
A list of technical requirements for buildings constructed in alberta.
What is the agency that tests furnaces?
CSA or
Underwriters Laboratories or
Underwriters Laboratories of Canada
What does the heat loss calculation determine?
Size of furnace used
What are 3 different types of installations for an hrv unit?
No separate ductwork
Separate intake ductwork
Stand alone system
What does SMACNA mean?
Sheet Metal and Air conditioning Contractors National Association
In the sheet metal trade the governing codes that are to be followed would fall under the?
National or Provincial codes
Once the house is framed what should the sheet metal worker do?
Rough in
Once the house has concrete what can the sheet metal worker do?
Basement ductwork
What does a range hood remove from a home?
Moisture, airborne greases and oils
What type of venting is used for high efficiency furnaces?
Pvc 636
Which air can only be drawn through metal ducting or piping?
Supply
What is the purpose of a fire stop?
To stop any fire that may travel inside the chase
What else is required for a high efficiency furnace?
A line to the floor drain
When setting a furnace what connects to the hole that has to be cut into the side?
Return air
Filter rack
Dryer vent joints are secured with?
Foil tape
After an inspection what should be on site after installation has passed?
Passed inspection tag
What is the clearance required for the front of the furnace?
24 inches
The ABC (Alberta Building Code) requires rectangular duct that is over 12 inches to be what?
Cross broken
Building construction standards specific to alberta are covered by which code?
ABC (Alberta Building Code)
Which agency conducts tests and writes standards specifically for HVAC?
SMACNA
What agency conducts tests and certifies products used by consumers?
CSA and ULC
Which agency conducts tests and writes standards related to fire protection?
NFPA
National Fire Protection Association
The part of the job where the thermostat is mounted permanently is?
Final stage
Single wall vent connector on wood burning appliances requires what clearances to combustibles?
18 inch
The clearance between fresh air hood and regulator vent on a natural gas or propane line into a building?
10 feet
When should vent pipe for a bath fan be insulated?
When it passes through an unheated attic space
Exhaust hoods should have what?
A damper to reduce the amount of air coming back into the building when fan is not running
What should be installed around return air inlets?
Return air rail
Return air frame
What is used to position underslab piping?
Metal stakes
Return air hangers are cut to what size?
2 inches longer than the sides of duct they are used for
Supply air hangers are currently to what size?
3 inches longer than the side of the supply duct
What is required for a heat loss calculation?
Blueprints
What is the purpose of a heat loss calculation?
To determine furnace size
What is minimum clearance for B vent?
1 inch
What is minimum clearnace for L vent?
3 inch
What is minimum clearance for A-vent?
2 inch
What is the minimum clearnace for c vent (liquid fuel)?
18 inches
What is the minimum clearnace for c vent (gas appliances)?
6 inches
What is the minimum clearnace for c vent (solid fuel)?
18 inches
What does an insulation stop do?
Makes sure insulation does not contact the vent pipe
What is minimum gauge for a 6 inch pipe?
30 gauge
Where should a roof jack be fastened?
On the high side of the roof
Why should more air be supplied to a crawl space than is drawn in to the return?
So the space is pressurized
