Introduction to Gasfitting Codes and Regulations - Part A Flashcards
Can heat exchangers be replaced?
Residential ones have to be replaced. Commercial appliances may be repaired but it has to meet the approval of of the Safety Codes Officer and you might need a permit in some jurisdictions.
Can you work upstream of the gas meter?
Only if authorized by the Utility Company
How high above the ground must appliances be in residental/storage garages vs in repair garades?
Residential: 18”
Repair Garage: 54”
Maximum psig coming out of propane tank?
10psig
What defines a “high altitude” and is Alberta classified as it?
Anything between 2000 feet and 4500 feet which includes all of Alberta.
What is the maximum BTU rating for an appliance being installed with its flue outlet under a canopy?
400 000 Btuh
What is the service regulator for natural gas set to by the utility?
7” wc
What section is the CAN/CSA B149.1?
Natural Gas and Propane Installation Code
What materials can chimneys be made out of?
Masonry, concrete, or metal
What sections of pipe are you responsible for?
Anything downstream of the meter or from the outlet of a suppliers propane tank. (this can include underground piping)
What should you do with instruction and installation booklets that come with an appliance?
Leave them with the appliance
What takes priority, appliance instructions or Code?
The Code
What’s the water column pressure for propane at the second-stage regulator?
11” wc
When can a mobile home follow standard CAN/CSA rather than mobile home regulations?
When it is on a permanent foundation
Who is responsible for an appliance?
The person who commissions it or the last person to work on it
