HVAC Journeyman 2025 – 400 Free Practice Questions to Pass the Exam

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What is the minimum size of the opening required for access to a floor furnace installed in a space?

24'' x 24''

The minimum size of the opening required for access to a floor furnace is specified as 24 inches by 24 inches. This size is established to ensure that technicians and service personnel have adequate space to safely access and perform necessary maintenance or repairs on the furnace. Sufficient access is crucial not only for conducting service efficiently but also for ensuring safety and compliance with local building codes and regulations.

The reason this particular dimension is important is that it allows for enough room to navigate tools and equipment while also accommodating the varying configurations and designs of floor furnaces. Smaller openings may impede the ability to safely and effectively conduct maintenance, which could lead to potentially hazardous situations. This standard helps to promote more effective servicing and minimizes the risk of accidents during repair work.

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24'' x 18''

20'' x 20''

None of the above

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