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Exhaust fans should provide access for cleaning and inspection within a distance of?

  1. 3 feet

  2. 5 feet

  3. 6 feet

  4. 8 feet

The correct answer is: 5 feet

Exhaust fans are critical components in HVAC systems, primarily for maintaining indoor air quality by expelling stale or contaminated air. It is essential that these fans are designed in a way that allows for adequate access for maintenance tasks such as cleaning and inspection. Providing access within a distance of 5 feet ensures that technicians can safely and efficiently reach the fan for routine checks and cleaning procedures, thereby promoting the fan's longevity and optimal performance. Maintenance access to exhaust fans is vital because cleanliness directly affects the efficiency of the fan in expelling air and may also influence energy consumption. Additionally, neglecting regular inspections can lead to reduced airflow and potential breakdowns, which may result in costly repairs or downtime. Therefore, the 5-foot requirement balances ease of access with practical working considerations within most buildings.