In this sub-class, the following terms are used with the meanings indicated:
"Air-conditioning" means the supply of air to rooms or spaces by means which provide for the treatment of the air in at least two of the following ways:
heating,
cooling,
any other kind of treatment, e.g. humidification.
"Ventilation" means the supply of air to, or its extraction from, rooms or spaces, and systems for circulating air within rooms or spaces, but does not cover the mere heating of rooms or spaces by the supply of heated air. The supply or circulation systems may include means for cooling the air or for treating the air in any other way than cooling or heating.
F24F 1/00 - F24F 5/00
Air-conditioning
F24F 1/00
Room units, e.g. receiving primary air from a central station
F24F 1/02
·
Self-contained, i.e. with all apparatus for treatment installed in a common casing
F24F 1/04
· ·
Arrangements for portability
F24F 3/00
Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems (room units Fulltext... Hierarchy... Expanded...F24F 1/00; construction of heat-exchangers Fulltext... Hierarchy... Expanded...F28)
F24F 3/02
·
characterised by the pressure or velocity of the primary air
F24F 3/04
· ·
operating with high pressure or high velocity
F24F 3/06
·
characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units (Fulltext... Hierarchy... Expanded...F24F 3/02 takes precedence)
F24F 3/08
· ·
with separate supply and return lines for hot and cold heat-exchange fluids
F24F 3/10
· ·
with separate supply lines and common return line for hot and cold heat-exchange fluids