2. Ceiling Layout
Ceiling Layout for
cleanroom having
ceiling height 3750
mm from ground
floor level. HEPA
filters for supply
and return.
Supply HEPA Diffuser Return HEPA Diffuser
1200 X 600 -350 Spigot, 1200 X 600 -350 Spigot,
swirl type. swirl type.
Supply and Installation of Walkable Ceiling Mounted Terminal HEPA Housing with Radial
Damper with airflow adjustment, Damper control with Damper Position Indicator, accessible
from room side + Bottom Access Mini-Pleat HEPA 110 mm Media Depth + Swirl type Diffuser
Face Plate + Sealing integrity test facility.
Modular panel of 1200 X 2400 are used for cleanroom ceiling. Families of HEPA, modular panel
with dimensions, plan view of ceiling are made in REVIT. Number of HEPA depend on require air
volume flow rate, Allowable face velocity for supply and return diffuser to avoid sound level.
3. Ducting
Ducting layout for
supply & return
HEPA terminal by
maintaining
8200 mm TOD
(top of duct).
Duct fitting
The function of a duct system is to transmit air from the air handling apparatus to the space to
be conditioned. To fulfill this function in a practical manner, the system must be designed
within the prescribed limits of available space, friction loss, velocity, sound, level, heat and
leakage losses and gains.
DUCT LAYOUT CONSIDERATIONS- There are several items in duct layout that should be
considered before sizing the ductwork, these include duct transformations, elbows, fittings,
take-offs, duct condensation and duct condensation and air control.
