Line E *Install Venting Systems* Flashcards
What Category appliance has nonpositive pressure and a temperature above 140°F (60°C)?
Category I
What Category appliance has positive pressure and a temperature below 140°F (60°C)?
Category IV
What Category appliance has positive pressure and a temperature above 140°F (60°C)?
Category III
What Category appliance requires venting that is made of material that is intended to resist corrosion from condensing?
Category II & IV
What Category appliance has nonpositive pressure and a temperature below 140°F (60°C)?
Category II
What Category appliance requires venting to be sealed and pressure tight?
Category III & IV
What is that maximum temperature of 316L stainless venting?
550°F
What temperature can high temperature silicone go up to?
2000°F
A flue vent can be supported by the appliance it serves.
False
What is the typical grade for horizontal flue venting?
1/4” per foot
How should the flue venting be graded for a condensing type appliance when running the vent horizontally to the outdoors?
Towards the appliance
To maintain the flow of condensate in a condensing appliance’s flue venting, a horizontal change in size of the venting should be done with what type of increaser?
Eccentric type
When changing the size of vertical venting, it should normally be done with what type of increaser?
Concentric type
What is used on flue venting guy wires to allow for vent expansion and contraction without stretching the guy wires?
Spring loaded turnbuckles
