Understanding node connections in EnergyPlus

Zone HVAC Design Objects

  1. Set design specifications of outdoor air
  2. Set zone, system and plant sizing parameters

Zone HVAC Controls and Thermostats

  1. Set zone thermostats

Zone HVAC Forced Air Units

  1. Zone HVAC components here should directly correct to zones and cannot connect to Zone HVAC Air Loop Terminal Units.

Zone HVAC Radiative/Convective Units

  1. Components here do not use normal zone thermostats but use their own schedule to set zone setpoints

Zone HVAC Air Loop Terminal Units

  1. Components here are just used to distribute air flow to zones and can be used together with other coils.