AWC AHS 4 Manual de usuario
11 a perfect partner in performance...a perfect partner in performance...
Pressure Independent
Variable Air Volume (Single Duct)
2
a perfect partner in performance...
Pressure Independent Variable Air Volume ( Single Duct)
1Fire Dampers
2Fire / Smoke Dampers
3Volume Control Dampers
4Motorized Control Dampers
5Pressure Relief Dampers /Non Return Dampers
6Pressure Independent VAV
7Constant Air Volume VAV
8By Pass VAV
9Sand Trap Louvers
10 Acoustic Louvers
11 Stationery Louvers / Architectural Louvers
12 Storm Louvers
13 Weather Louvers
14 Rectangular Sound Attenuators
15 Circular Sound Attenuators
16 Crosstalk Attenuators
17 Flange & Slip 'n' Type
18 Modulating & On/Off Type
19 Registers & Grilles
20 Diffusers (Linear Diffusers, Sq. & Rect. Ceiling
Diffusers, Round Diffusers, Jetflow Diffusers
21 Swirl Diffusers & Disc Valves
22 Drum Louvers
Sound Attenuators
Electric Duct Heaters
Air Outlets
Dampers
Variable Air Volumes
Louvers
Sound Attenuators
Electric Duct Heaters
Air Outlets
Our Product Ranges
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Pressure Independent Variable Air Volume ( Single Duct)
INDEX
Page
Introduction......................................................................................................05
Key features & benefits of VAV System....................................................06
Standard Construction Details ...................................................................07
Standard Construction Details ...................................................................08
Dimensional Data............................................................................................09
Leakage Characteristics for Single Duct VAV...........................................10
Types of VAV........................................................................................................11
Electric Heater Details ...................................................................................12
Engineering Guidelines .............................................................................13-15
Our OEM Partners ..........................................................................................16
Material Storage, Operation & Maintenance............................................17
Trouble shooting...............................................................................................18
4
a perfect partner in performance...
Pressure Independent Variable Air Volume ( Single Duct)
Pressure Independent
Variable Air Volume (Single Duct)
Pressure Independent
Variable Air Volume (Single Duct)
54 a perfect partner in performance...a perfect partner in performance...
Pressure Independent Variable Air Volume ( Single Duct)
Airwellcare Variable Air Volume (VAV)
controller is an electronic device for
digital control of single duct, dual duct, fan
powered, and supply / ex-haust VAV terminal
configurations.
Central VAV systems are considered to
be the most energy efficient method to air
condition buildings. By designing central
systems instead of distributed systems, a
greater efficiency can be obtained.
Airwellcare Pressure Independent VAV
System controls the exact volume of primary
air which flows to the occupied area by the
help of an airflow measuring device on the
VAV terminal. The VAVs can be widely used
as a standalone controller or connected to
a Network through our Network Control
Module.
Pressure independent control upsurges
the steadiness of flow control permitting
minimum and maximum flow settings to
become actual airflows rather than physical
positions of the modulation device, as
common as most popular in all VAV Control
Systems.
The VAV System that works..
The air passes into each zone from the
ductwork through individual VAV boxes. A
temperature sensor located in each zone
is connected to its VAV box and opens or
closes the VAV box to maintain the defined
temperature set-point.
As the zone becomes satisfied, the VAV
box modulates to a closed position. As the
zone´s requirements become satisfied, the
pressure in the ductwork begins to rise as
the openings in the ductwork close.
Variable Air Volume systems, are used to
control both the ventilation and temperature
to satisfy the requirements of a building.
VAV Applications :
Residential & Commercial Buildings
Airports
Office space
Hospitals
Hotels
Retail stores
Shopping Malls
Educational facilities
Indoor Games
Stadiums
Theaters
Introduction
6
a perfect partner in performance...
Pressure Independent Variable Air Volume ( Single Duct)
Cost-Effective & Improved
Indoor Air Quality
Airwellcare VAV systems can change the
supply air volume according to the cooling
and heating load variation to enable the
cooling, heating capacity and fan power to
meet actual load requirement, resulting the
significant reduction of energy consumption.
These VAV systems can utilize the outdoor
fresh air as much as possible during
transitional seasons, which not only saves
energy consumption, but also improves
indoor air quality. It is estimated that over
30% of the annual energy consumption can
be saved and 10-30% of total equipment
capacity can be reduced by using VAV system.
Simple Construction &
Installation
Airwellcare VAV boxes are constructed
with high quality Galvanized Steel casing/
Aluminium casing which makes handling &
installation simple and easy.
Compatible to any Building Management
System (BMS)
Airwellcare VAV systems can be integrated
to any BMS (Building Management System)
through Direct Digital Control (DDC)control.
System optimization and monitoring of
the whole system can be achieved by
computerized centralized system.
Quality Assurance &
Performance
Airwellcare VAV Systems & Controllers
ensures the product quality, system
compatibility and the perfect system
integration, to meet the current industry
regulations and standards.
Compact Design.
Low Pressure Loss over the Unit.
Single or Double Wall Construction.
Factory assembled controls & calibration.
Multi-leaf low leakage Blades for Heavy
Duty Applications.
Maintenance Free.
Accurate Air Volume Control with Centre
averaging multipoint airflow differential
cross velocity pressure sensor.
Demand based single room application.
Individual room comfort.
Key features & benefits of VAV System
76 a perfect partner in performance...a perfect partner in performance...
Pressure Independent Variable Air Volume ( Single Duct)
Casing Casings are made of high quality Galvanized Sheet Steel of 1.0mm Thick.
Internal Insulation VAV Boxes are Internally Insulated with ½ Inch Or 1 Inch Acoustic
Liner (in compliance with project requirement).
Metal encapsulated edge prevents cut fibers of the insulating plate falling off, and avoids
erosion in the air stream.
VAV Damper Shafts VAV Damper Shafts are made of 12mm Dia Round Solid
Composite Steel shafts, which prevents condensation and breakage.
Damper Gaskets Blade edges are sealed with Rubber Gaskets, preventing air leakage
and for an air tight operation with low leakage characteristics.
VAV Sound Attenuator (optional only) VAVs are provided with Sound Attenuator
as an optional (upon request), where excess noise to be decreased or controlled
maximum.
Flow Grid Differential Flow Grids are located inside the VAV inlet with pre-calibrated
holes with die cast aluminum junction, which measures air volume accurately.
Electric Duct Heater (Optional only) Terminal shall include an integral electric
heater, where indicated on the plans. The heater Control Box shall be constructed of not
less than 20 gauge galvanized steel. Heater shall have a hinged access panel for entry to
the controls.
VAV Controls
VAVs Controls are factory assembled & calibrated based on Customers project
requirements, which will comprise of :
DDC Controls (BACnet & LON Works)
Standalone System
Double wall construction
Standard Construction Details
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a perfect partner in performance...
Pressure Independent Variable Air Volume ( Single Duct)
Standard Construction Details
Blade Gasket
Blade edges are sealed with
Gaskets, preventing the air leakage and for an
air tight operation
Brass / SS Ball Bearing
Self -lubricating bearing to reduce friction and
air leakage
VAV Damper Shafts are made of
12mm Round Solid Composite Steel
which prevents condensation & breakage
Internal Insulation
Internally insulated with 12.5 (1/2 Inch) 25mm (1 Inch)
Acoustic liner. Metal encapsulated edge prevents
cut fibers of the insulating plate falling off, and avoids
erosion in the air stream.
Double Wall
0.7mm Thick (3mm hole x 5mm pich)
Galvanized perforation prevents cut
fibers of the insulating plate falling off,
and avoids erosion in the air stream.
Slip and drive discharge collar for
quick field installation Control Box (VAV)
Electrical devices installed
with single point power
connection
Control Box (Heater)
Electrical Heater devices
installed within NEMA
1 enclosure, with single
point power connection
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Box Dimensions (mm)
45
70
75
140
230
340
480
625
1180
250
350
475
950
1540
2200
3100
4100
5200
275
300
325
375
425
450
550
650
750
250
250
275
300
350
400
425
450
450
400
400
400
500
500
600
600
700
750
500
500
500
500
600
600
600
600
600
80
80
80
80
80
80
80
80
80
175
175
175
200
300
350
350
400
400
900
900
900
1000
1100
1200
1200
1300
1350
Pressure Independent Variable Air Volume ( Single Duct)
Page | 8
Dimensional Data
Airflow Ranges (CFM)
Sound Attenuator
Airflow Ranges (CFM)
Air Flow (cfm)
Min
AHS 4
AHS 5
AHS 6
AHS 8
AHS 10
AHS 12
AHS 14
AHS 16
AHS 18
Max W H L A I D L+A
Model & Unit
Size
Dimensional Data
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a perfect partner in performance...
Pressure Independent Variable Air Volume ( Single Duct)
The above data for Single Duct VAV units.
Damper leakage tested at 1.0” Differential Pressure.
Casing has been leakage tested at 0.5” Differential Pressure.
The Leakage ratings as per ASHRAE 90.1 & AHRI Standards for VAVs.
Each Pressure input
signal is routed to the
centre averaging
chamber with equally
made concentric circular
areas (3, 4 & 5
Concentric holes based
on inlet size.
Damper
Inlet
Leakage Characteristics for Single Duct VAV
Este manual sirve para los siguientes modelos
8
Tabla de contenidos
