Which is a primary safety requirement when replacing an older furnace quizlet. Study with Quizlet and memorize flashcards containing terms like Compared to the installation of a gas or oil furnace, an electric furnace installation is:, Which of the following is a good suggestion when bending the furnace plenum flange to minimize distortion, The minimum distances from each of the furnace surfaces to any combustible materials describes and more. Older furnaces can be anywhere from 40% to 80% efficient. A good description of how hi-metai fan switch operates the blower motor on a gas furnace is: A: temperature on - time off. What type of central heating system is always required to have a remote safety switch? electric furnace gas-fired heat pump oil-fired Oil-fired An 80% efficiency rating for a gas-fired heating system would best describe _____. Properly grounding the furnace cabinet: Properly grounding the furnace cabinet is a primary safety requirement when replacing an older furnace to prevent electrical hazards For question 2: A. The availability of flue within 2 feet of the appliance. Study with Quizlet and memorize flashcards containing terms like Which of the following is part of an HVAC installation?, What are the results of improper wiring?, An important part of replacing HVAC equipment requires which of the following? and more. Study with Quizlet and memorize flashcards containing terms like A two-pipe system should be installed with the suction at the oil pump greater than what measure?, Before starting an oil furnace, the technician should check to see that:, How can a range of heating capacities be achieved with the same burner? and more. Think about it if your furnace is 50% efficient and you can upgrade to a standard 80% or even a 98% efficient furnace, you will be saving a lot in energy efficiency. The fan switch contacts open: This is not the last step in the operational sequence of the typical oil-fired furnace. 0neo jg ugtm vbklo kh4f b54w9 acpuac ymakv qvvb tura7