57 Air Handling Unit (AHU) An air handling unit provides conditioned supply air to building spaces. The equipment can either deliver the minimum fresh air requirement for a dedicated outdoor air system (DOAS) or meet all fresh air and conditioning needs of a building (all-air or VAV). An air handling unit passes fresh and/ or recirculated air through air filters, heating coils, cooling coils, and heat recovery before delivering the air to all zones. Table 6.1 Specifications Fuel Source Electricity Produces Conditioned air or minimum fresh air Requires Hot and chilled water connection Back to: VAV System with Hot Water Reheat FCU with Dedicated Outside Air VRF System with Dedicated Outside Air
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