Canadian National Gas Code Section 8 Part 1

Front 1

Maximum water closets wet vented

Back 1

2

Front 2

Requirements for wet venting two water closets

Back 2

They must be connected at the same level by means of a double sanitary T fitting if the pipe is vertical and by means of a Double Y if the vent pipe is horizontal

Front 3

When wet venting where must water closets be installed

Back 3

Downstream of all other fixtures

Front 4

Trap arms and fixture drains connected to a wet vent shall not exceed what size except for connections for emergency floor drains

Back 4

2 inches

Front 5

Do you take into consideration the hydraulic load of separately vented fixtures that drain into a wet vent when sizing a continuous vent

Back 5

No

Front 6

When it wet vent extends through more than one story the total discharge from anyone story above the first story shall not exceed how many fixture units

Back 6

4

Front 7

Maximum nominally horizontal offset in a wet vent 2 inch or less in size

Back 7

1.2 m

Front 8

Maximum nominally horizontal offset in a wet vent larger than 2 in

Back 8

2.5 m

Front 9

Where must all fixture served by Circuit vent be located

Back 9

In the same story

Front 10

can a soil or waste stack be connected Upstream of a circuit vented fixture

Back 10

No

Front 11

When circuit venting fixtures with Outlet pipes less than 2 in in size shall

Back 11

Be separately vented or separately circuit vented

Front 12

Where is a relief vent connected

Back 12

To the branch that forms part of a circuit vented system and downstream of the most Downstream circuit vented fixture

Front 13

If a soil or waste pipe having a hydraulic load of not greater than how many fixture units is permitted to act as a relief vent for a circuit vented branch

Back 13

6 fixture units

Front 14

When is a symmetrically connected relief vent permitted to serve as a combined relief vent for a maximum of two branches

Back 14

When there are not more than eight circuit vented fixtures connected between the combined relief vent and each circuit vent

Front 15

When shell additional circuit vent be required

Back 15

Each cumulative horizontal change a 45° in a circuit vented branch or when more than eight circuit vented fixtures are connected to a branch

Front 16

When can a soil or waste pipe be permitted to serve as an additional circuit vent

Back 16

As long as it is sized as a wet vent and is minimum 2 in in size

Front 17

A circuit vented Branch shall be minimum what size wear traps less than 2 in in size are vented

Back 17

2 inch

Front 18

What is the minimum size a circuit vented Branch can be where it has traps 2 inch or larger butter connected to the Circuit vent

Back 18

3 in

Front 19

What is the minimum size of an additional circuit vent or relief vent

Back 19

One size smaller than the required size of the circuit vent but need to not be larger than 2 in

Front 20

When determining the size of a wet vent the hydraulic load from which fixture connected shall not be included

Back 20

The most Downstream fixture

Front 21

Is a continuous vent considered to be dry or wet

Back 21

Dry

Front 22

maximum number of fixtures that are allowed to be connected to a circuit vent or additional circuit

Back 22

Two symmetrically connected maximum six fixture units

Front 23

Yolk events must be installed in buildings that receive discharge from fixtures located on more than how many stories

Back 23

11

Front 24

At what length, and other requirements does an offset required to offset relief vents?

Back 24

The offsets must be greater than 1.5 M long and the upper vertical portion of the stack passes through more than two stories and receives a hydraulic load of more than 100 fixture units

Front 25

Where are offset relief vents required to be connected

Back 25

At the highest and lowest points off the offset

Front 26

Minimum size of an offset relief vent

Back 26

Maybe one size smaller than the stack vent

Front 27

Where are yoke vents located

Back 27

Each section of five stories or parked there of counting from the top down

Front 28

At what height are yoke vents connected

Back 28

Not less than 1 meter above the floor of the lowest story of the section in question

Front 29

How shall the Yoke vent be connected to the soil or waste stack

Back 29

By means of a drainage fitting at or mediately below the lowest soil or waste pipe from the lowest story

Front 30

The upper end of every soil or waste stack shall terminate in a

Back 30

Stack vent

Front 31

Every soil or waste stack draining fixtures for more than four stories that contain Plumbing fixtures shall have a

Back 31

Vent stack

Front 32

A soil or waste stack that serves as a wet vent does not require a

Back 32

Vent stack

Front 33

Where is a vent stack connected to the vertical section of soil or waste stack

Back 33

At or immediately below the lowest soil or waste pipe connected to the soil or waste stack

Front 34

Fixtures are permitted to be connected to a vent stack provided that they

Back 34

Fixture unit does not exceed 8, at least one fixtures connected to a vertical portion of the vent stack and Upstream of any other fixtures, no fixtures connected to Downstream of a water closet, all fixtures are located in the lowest story served by the vent stack and the section of the vent pipe that acts as a wet vent conforms to the requirement regarding what vents