HVAC EQUIPMENT

1
HVAC EQUIPMENT

• General
• The prevailing temperature and humidity condition
  of a space is a result of the balance between the
  heat entering a building and exiting it.
  Regulation of these heat transfers requires the
  introduction of heating and cooling systems in a
  building.

2
HVAC EQUIPMENT

• Systems overview (additional information)
• HVAC systems have the following elements in
  common
• Equipment to generate heating or cooling The
  equipment is selected with a capacity to offset
  the peak load of the space or spaces to be
  served.
• A means of distributing heat, cooling, and/or
  filtered ventilation air where needed air,
  water, or steam.
• Devices that deliver the heat, cooling, and/or
  fresh air into the building registers and
  diffusers, hydronic radiators or convectors, and
  fan coil units.
• All these above functions are sometimes combined
  into a single unit that by itself converts an
  energy source into heating or cooling and
  delivers it to the space.

3
HEATING EQUIPMENT

• Central heat sources
• Selection Selection of equipment depends on
  economic factors once the total required capacity
  has been calculated. The choice of components
  depends on the types of fuel available and
  availability of space and structural support.

4
COMBUSTION/ELECTRIC HEATING

• Furnace (see section 16.0)
• Efficiency of a furnace heat delivered/energy
  input.
• Boiler (see section 16.0)
• Efficiency of a boiler heat delivered/energy
  input.
• Heat pump (see sections 16.0 16.5)
• Efficiency of a heat pump when in heating mode
  is measured in COP or HSPF (Heating Season
  Performance Factor)