1.3.5 Heating, Ventilating, and Air Conditioning (HVAC)
1. Replace user-specified HVAC system with baseline system
o Baseline sizing run is autosized
o Baseline run hard sized using baseline sizing results
2. Model user- specified HVAC systems with user-supplied sizing:
o Package single zone (PSZ)
o Single zone variable air volume (SZVAV)
o Package variable air volume (PVAV)
o Variable air volume (VAV)
o Package terminal air conditioner (PTAC)
o Package terminal heat pump (PTHP)
o Water source heat pump (WSHP)
o Four pipe fan-coil units (FPFC)
o Single Packaged Vertical Units (SPVAC and SPVHP)
o Baseboard heating
o Evaporative Cooling
o Exhaust Fans
o Dedicated outdoor air systems (DOAS)
o Plenum supply and return
o Series fan-powered VAV boxes
o CRAC and CRAH systems for computer rooms
o Heat Recovery for Air Systems with 100% Outside Air
o Special requirements enabled for process spaces (Computer rooms, kitchens, laboratories)
o Heating coils
§ Gas furnace
§ Hot water
§ Electric
§ Direct expansion (DX) (heat pump)
o Cooling coils
§ Chilled water
§ DX
o Boilers
§ Hot water
§ Gas
§ Electric
§ Natural draft
§ Mechanical draft
o Chillers
§ Screw
§ Reciprocating
§ Centrifugal
§ Air-cooled
§ Water-cooled
§ Absorption (Hot water)
o Chilled water loop pumping
§ Primary only
§ Primary-secondary
o Economizers (Airside & Waterside)
§ Non-integrated
§ Integrated
o Economizer Controls
§ Fixed temperature
§ Differential temperature
§ Fixed enthalpy
§ Differential enthalpy
