FAQs for HVAC & Ventilation
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HVAC & Ventilation
How many air changes does a workshop need?
Typically 6–15 ACH depending on heat and fumes; NBC Part 8 gives values by occupancy.
Air-cooled or water-cooled chiller?
Water-cooled is more efficient above ~200 TR where water is available; air-cooled is simpler for smaller plants.
Is 1 TR per 100 ft² accurate?
Only as a first estimate for comfort cooling; always confirm with a heat-load calculation.
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Standards cited by number for reference; verify designs with a qualified engineer.