residential installations and codes (110104h) Flashcards
Does sheet metal have its own code?
no, but we have SMACNA we all use this set of practices
what governing codes does the sheet metal trade fall under?
ABC (Alberta Building Code) or the NBC (National Building Code)
Who does OH and S cover?
Employees and employers
who must all furnaces be certified by?
CSA (Canadian standard association)
What does SMACNA stand for?
Sheet Metal Air Conditioning Contractors National Association
what is required for a heat loss calculation?
Blueprints
what is the purpose of a heat loss calculation?
to determine the furnace size
what does the Alberta building code require for ventilation requirements for a building?
a fan must be installed to exhaust air out and must be interlocked with a fresh air in
What does HRV stand for?
Heat recovery ventilator
what are three different types of installations for an HRV?
Stand-alone system
separate intake ductwork
no separate duct work
once a house is framed what can the sheet metal worker do?
install rough in and duct work
once there is concreate layed what can the sheet metal worker do?
install basment rough-in furnace
what is the purpose of a range hood?
exhaust moisture and excessive grease out of the home
what does high efficiency furnace venting require?
PVC BH S636
what is also required for a high efficiency furnace venting system?
a floor drain line for the acidic condensate
what can not be connected to the HRV system?
range hoods and dryer vents
what does a fire stop do?
stop fire in the vent chase and also maintain clearances to combustibles
what does an insulation stop do?
makes sure that he insulation does not contact the vent pipe
what air can only be drawn through a metal duct or pipe?
Supply Air
what is the whole cut on the side of the furnace on the bottom for?
kick boot / return air filter
can the dryer vent joined be secured with screws?
no tape only as lint can build up on the screws
what do you receive on the furnace once the inspection has passed?
inspection tag
what is the minimum clearance for B-vent?
1”
what is the minimum clearance for L-vent?
3”
what is the minimum clearance for a-vent?
2”
what is the minimum clearance for c-vent? (gas appliances)
6”
what is the minimum clearance for C-vent? (liquid fuel appliances)
18”
what is the minimum clearance for C-vent? Solid fuel
18”
what must be 3 feet away form the gas regulator?
exhaust hood or exhaust for appliance, also intake hoods, mechanical INTAKE FR APPLIANCES MUST BE A MINIMUM OF 10’ AWAY
what clearance is required for the front of a gas furnace?
24”
what is the minimum gauge for a 6” pipe?
30g
when must rectangular duct be cross broken?
when it over 12” long for added strength
for basement heating the supply and return air must be a minimum 10 ‘ away from one another to ensure proper movement of air
what must all boots have now?
a 1/2” safety hem
can the roof jack be fasted anywhere?
no only on the high side of the roof
