OpenBuildings™ Station Designer Help

Air Handling Unit types

The AHU group comprises in-build inline, and stacked AHUs supplied in Mechanical discipline. The default AHUs available in the applications are loaded via the AHU Library in AHU List and be placed as an individual AHU.

Key In Syntax

Follows the Placement Key In syntax.
BMECH PLACE COMPONENTBYNAME <schema name> <item name> dsc=HVAC
Note: Key Ins for AHUs are applicable only to non-AHU Builder version.

Types of AHUs

The below list of fittings illustrates the possible <schema name> <item name> used in above key in syntax, for each AHU and the description of the component.

RectangularAHUs1 AHU1 Rectangular AHU1 — A standard rectangular Air Handling Unit with a Fluid IN and Fluid OUT connections.

The purpose of this equipment is to collect and mix outdoor air with that returning from the building space.

RectangularAHUs2 AHU2 Rectangular AHU2 — A multi chamber rectangular Air Handling units in a row with a Fluid IN and Fluid OUT connections at opposite ends.
RectangularAHUs3 AHU3 Rectangular AHU with 3 Ends — Rectangular Air Handling terminal units with 3 ends to connect to additional branch or unit.
RectangularAHUs4 AHU4 Rectangular AHU with 4 Ends — Rectangular Air Handling terminal units with 4 ends. Provides additional supply and return to connect to branch or unit.
RectangularAHUs5 AHU5 Rectangular AHU with 5 Ends — Rectangular Air Handling terminal units with 5 ends. Provides additional supply and return to connect to branch or unit.
rectangularInlineAHUs1 "InlineAHU" Inline AHU - (Blower) — Configuration: Blower
RectangularInlineAHUs2 "InlineAHU" Inline AHU - (Blower, PreFilter) — Configuration: Blower, Pre Filter
RectangularInlineAHUs3 "InlineAHU" Inline AHU - (Blower, Cooling Coil, PreFilter) — Configuration: Blower, Pre Filter, Cooling Coil
RectangularInlineAHUs4 "InlineAHU" Place Inline AHU - (S.A. Plenum, Fine Filter, Blower, PreFilter) — Configuration: Blower, Pre Filter, S.A. Plenum, Fine Filter
RectangularInlineAHUs5 "InlineAHU" Inline AHU - (S.A. Plenum, Fine Filter, Blower, PreFilter, Mixing Chamber) — Configuration: Blower, Pre Filter, S.A. Plenum, Fine Filter, Mixing Chamber
RectangularInlineAHUs6 "InlineAHU" Inline AHU - (S.A. Plenum, Fine Filter, Blower, Cooling Coil, PreFilter, Mixing Chamber) — Configuration: Blower, Pre Filter, S.A. Plenum, Fine Filter, Mixing Chamber, Cooling Coil
RectangularInlineAHUs7 "InlineAHU" Inline AHU - (S.A. Fan, Cooling Coil, PreFilter, Mixing Chamber, Exhaust Chamber, R.A. Fan) — Configuration: Pre Filter, S.A. Fan, Mixing Chamber, Cooling Coil, Exhaust Chamber, R.A. Fan
RectangularInlineAHUs8 "InlineAHU" Inline AHU - (S.A. Plenum, HEPA Filter, Fine Filter, Blower, Heating Coil, Cooling Coil, PreFilter, Mixing Chamber) — Configuration: Blower, Pre Filter, S.A. Plenum, Mixing Chamber, Cooling Coil, Heating Coil, Fine Filter, HEPA Filter
RectangularInlineStackedAHUs1 "InlineAHU" Stack Inline AHU1 — Level 1 - Configuration: Blower, Pre Filter, Mixing Chamber, Cooling Coil

Level 2 - Configuration: Fine Filter, HEPA Filter, S.A. Plenum

RectangularInlineStackedAHUs2 "InlineAHU" Stack Inline AHU2 — el 1 - Configuration: Blower, Pre Filter, S.A. Plenum, Mixing Chamber, Cooling Coil, Heating Coil, Fine Filter, HEPA Filter

Level 2 - Configuration: Blower, Pre Filter, E.A. Plenum

RectangularInlineStackedAHUs3 "InlineAHU" Stack Inline AHU3 — Level 1 - Configuration: Blower, Pre Filter, Mixing Chamber, Cooling Coil, Heating Coil, Humidifying Section

Level 2 - Configuration: Fine Filter, S.A. Plenum

RectangularInlineHRUAHUs "InlineAHU" Rectangular Inline HRU AHU — Level 1 - Configuration: Blower, Pre Filter, S.A. Plenum, Cooling Coil, Heat Recovery Unit

Level 2 - Configuration: Blower, Pre Filter, S.A. Plenum, Heat Recovery Unit

RectangularInlineVerticalAHUs1 "InlineAHU" Rectangular Inline Vertical AHU1 — Level 1 - Configuration: Filter, Cooling Coil

Level 2 Configuration: Blower

RectangularInlineAIRWASHERAHUs "InlineAHU" Rectangular Inline AIRWASHER AHUs — Configuration: Blower, Washer System, Filter