TECHNICAL SPECIFICATIONS – AIR HANDLING UNIT (AHU)
An air handling unit (AHU) is a device used to generate a large
volume of air to recondition and circulate as a part of cooling,
heating and ventilating systems in buildings. These AHU’s are
connected through duct work that distributes the conditioned
supply air to the various rooms in building and returns it to the
AHU. The design of AHU is according to “Class 100 as per FS 209E”.
PRODUCT
:
AIR HANDLING UNIT (AHU)
MATERIAL OF CONSTRUCTION
:
OUTER SKIN
Pre Coated GI
SS 304
INNER SKIN
GI (Normal)
SS 304
DESIGN MODEL
:
Base Mounted
Ceiling Suspended
ACCESSORIES AND OTHER FEATURES
STRUCTURAL CONSTRUCTION
:
Thermal or Non Thermal Aluminum extruded profile
construction sealed with leak proof gasket strips between panel
and Profiles.
PANELS
:
Double Skin PU puff insulated panel, with light weight, good
rigidity and thermal conductivity, Puff density 40 kg/m3
Panel Thickness 25 mm
; 43 mm step panel
HARDWARE
:
Nylon AHU Door Handles, Door Knobs, Door Hinges, Nylon
corner blocks, and all necessary fasteners, etc…
AIR FILTERATION
:
Stage-1: Fresh air filter (EU-7) 10 micron
Stage-2: Pre filter (EU-5) 5 micron
Stage-3:Fine Filter (EU-4) 3 Micron
COOLING/HEATING
:
Cooling / Heating coil (Dual sine wave fins are mechanically
bonded with copper tubes,releasing excelent cooling/heating
transfer effeciency. The coil header is constructed with steel or
copper. SS drain tray is arranged to drain out the water in the
coil in winter to avoid the frost crack of the coil.
DX Coil
; Chilled Water coil
; Other
(Coil capacity will calcualted on CFM Required)
BLOWER
:
The blower unit is designed with Backward or forward
centrifugal type with low noise and hign efficiency,the impeller
and pully are statically and dynamically balanced.The blower
and motor assembly mounted on common base with shock
obsorber to operate the fan stably and smoothly.
Kruger
; Rosenberg
; Equivalent made
DAMPER
:
To control the volume of air with no leakage, The VCD are made
up of Galvanized steel
Fresh air damper, Supply air, Return air VCD Dampers
TECHNICAL SPECIFICATIONS – AIR HANDLING UNIT (AHU)
OTHER OPTIONAL EXTER
FEATURES
:
 3rd Stage of Filtration with HEPA (EU-13/H-14) 0.3 micron
 View glass shall fitted to all fan and coil section
 View glass shall fitted to all access panels
 Accessible area in unit shall fitted with bulk head lights
 Non-Standard colors of unit available
 Electrical control panel to operate the unit.
 UV light in Coil section
 Heater bank in supply air filter section
 Fusible or motorized fire damper at supply duct along with
VCD.
CLEANLINESS
:
ISO-5 (AS PER ISO-14644-1); CLASS 100 (AS PER FS209E)
VALIDATION PROCEDURE
:
AIR VELOCITY TEST, LEAK (PAO) TEST; PARTICLE COUNT TEST.
CERTIFICATION
:
FILTER TEST CERTIFICATES, MOC TEST REPORTS
APPLICATIONS
 Pharmaceutical Industries
 Chemical Research laboratories
 Hotel buildings
 Shopping malls
LINE DIAGRAM OF AIR HANDLING UNIT