H.V.A.C.
4-3.8.4
Single
Duct:
Air
Water
(1)
A. D e s c r i p t i o n :
A single duct
from central air handling equip-
ment delivers cool air
throughout the building.
Branch
ducts from the distribution
system, through terminal units,
supply air to room air outlets,
usually located in the ceiling.
B.
Types:
low velocity reheat- central
system
low velocity reheat - packaged
equipment
variable volume reheat - central
system
variable volume reheat - packaged
4-3.8.5
Single
Duct:
All-Air
(2)
A. D e s c r i p t i o n :
A single duct
from central air handling
equipment delivers air through-
out the buiIding.
Branch ducts
from the distribution system,
through terminal units, supply
air to room air outlets,
usually located in the ceiling.
B. T y p e s :
s i n g l e z o n e , c e n t r a l system
s i n g l e z o n e , packaged equipment
variable volume, central plant
variable volume, packaged
equipment
integrated ceiling, all-air
induction, central plant
integrated ceiling, all-air
i n d u c t i o n , packaged equipment
variable volume, ceiling unit,
central plant
variable volume, ceiIing unit,
packaged equipment
4-10
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