Questions about your HVAC Systems


When examining the existing HVAC (Heating, ventilation, and air conditioning) system or building a new system, there are a few questions that need to be answered. A list of questions about your HVAC system can be found below.

Heating Ventilation and Air Conditioning at Building Roof
  • What is the type of HVAC system?
  • All-air, all-water, air-water, geothermal, or another type?
  • Is it VAV or CAV?
  • Are there different temperature zones of the building?
  • In case of either of these, why has this specific system been used and not another system?
  • What are the components of the HVAC system (cooling tower, AHU, boiler, thermostat, etc.)?
  • How do they function?
  • Where is the location of mechanical room in the plan? In what floor?
  • What about fan room?
  • Is the boiler room and chiller room in the same room?
  • How many AHUs does the building have?
  • How does the ductwork or piping run horizontally or vertically in the building?
  • Are there complaints from the occupants about their thermal comfort? What are those
    complaints? What would the facility manager change if the opportunity arises?
  • What aspects of the system make the building LEED compliant?
  • Is there an Energy Recovery ventilator (ERV) that provides ventilation (fresh air)?


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