Air Handling Unit - Main Parts

The Base Frame

The each module of AHU is mounted on a continuous beam of galvanised steel channel held together with die cast
aluminium base corners with lifting holes for easy handling. Extruded aluminum alloy base is also available as option.
Frame Work
The modular framework is made of anticorrosive extruded aluminium profile. Different types of profiles are available to
choose from.
The Coil Section
We offer a wide range of chilled water, direct expansion, hot water & steam coils upto 12 rows deep. The coils are
computer selected to obtain optimum psychometric efficiency 2 with low air & water pressure drops. Each coil is pressure
tested at 21 kg / cm under water for trouble free operations. Coils with anticorrosive aluminium fins, copper fins, copper
header with MS adopter and MS header is also available as option.
The Drain Pan
The unique design aluminium construction drain-pan with multi slope ensures complete drainage of the condensate &
prevents growth of microbes during off or heating cycles.
The Panel
Standard 25mm / 43 mm panels are made of prepainted / precoated / GSS Sheets injected with environment friendly PUF
of uniform density of 40 3 +2 kg/m . The panels are fixed to the frame work using special imported self drilling & tapping
screws. To ensure air tight construction, self sticking gaskets are provided between the panel & frame. For specialized
applications food grade gaskets are provided. Choice of Al / SS304 / Prepainted sheet as inner skin.
Hinges & Locks
All access doors & panels are provided with hinges & locks made of self extinguishing nylon. The access panels are fitted
to the panel using multifinned gasket which provide perfect air tightness & can be removed easily using hand tools. Food
grade gasket is also available.
The Fan & Motor Module
High energy efficient forward / backward curved aerofoil AMCA certified centrifugal fans are available for all
applications. The fan & motor is mounted on a common channel fitted with anti-vibration isolators to avoid the vibration
transfer to main casing. The fan is connected to the casing using self extinguishing fabric flexible connection. Direct drive
plenum fan is also available for special applications. The limit switch is also provided on fan door for human safety.
The Filter Section
Fully sealed filter sectons are designed for easy installtion & removal. A complete range of filters with various
efficiencies and media are available as per requirements. Pressure measurement ports can be provided across fine filters
as option.

The Air Mixing Section

Fresh air & return air can be mixed at the desired rate with dampers that are specially designed for maximum air
efficiency. Motorized / Manual damper in extruded aluminium aerofoil design / GSS / SS construction is available. A
combination of 2 way or 3 way mixing chamber is also
available.

Average Pressure Drop of ATU Components

The Accessories & Options
Lamp switch as option
Variable frequency drive with bypass arrangement
Contoured / G.I. / Pre Coated aluminium roof for outdoor application.
Intake louvre with bird screen for fresh air intake.
Buckhead lamp as
standard

Outlet cowl with bird screen for exhaust unit.

Fire retardent flexible joints for Inlet & outlet of the unit.
Sound attenuation section for low noise applications.

Humidification section with wet deck 100 mm or 200 mm / spray type with inlet vanes & mist eliminator / steam humid
type humidif ier for critical applications.
Face & bypass / bypass damper section.
Drift eliminators in PVC / SS / Aluminium / G.I.
Condensate drain pump for underground installations.
Inspection window as
standard

Electric heater section for heating / humidity control.

Cross flow plate type, wheel type heat recovery and heat pipe can be supplied as an integral part of the unit for energy c
EFF-1 Motor
UV Tube
Units with Flat Belt
Units with VFDs

Limit Switch

Micro processor control panel with required field sensors duly wired to the unit.

The Safety
Provision for electrically interlocked fan section with access door
VWire guard for fan section
Earthing of fan & motor
Pressure Guage

The shown pressure drop values are average values. Exact values can be determined with computer selection and type of c
used.

Heat Recovery Wheel

Air Handling Units

Unit Model

Unit CFM

Unit Overall Dimensions

Coil Face Area

Length (mm)

Width (mm)

Height (mm)

Unit Base
(mm)

Sq. Feet

Fan Model

Motor
(Kw)

FLHU-010

1000

1300

850

620

100

2.0

7 x 7

0.55

FLHU-015

1500

1310

800

750

100

3.0

9 x 9

1.1

FLHU-020

2000

1320

950

850

100

4.2

10 x 10

1.1

FLHU-025

2500

1450

1100

800

100

5.0

12 x 12

1.5

FLHU-030

3000

1500

1240

880

100

6.25

315R

2.2

FLHU-040

4000

1620

1540

940

100

8.33

355R

3.7

FLHU-050

5000

1660

1540

1080

100

10.00

400R

3.7

FLHU-060

6000

1820

1540

1180

100

12.50

450R

5.5

FLHU-070

7000

1860

1540

1380

100

14.17

450R

5.5

FLHU-080

8000

1920

1540

1440

100

15.83

500R

5.5

FLHU-090

9000

1860

1800

1380

100

18.13

560R

5.5

FLHU-100

10000

1860

1800

1500

100

20.14

560R

7.5

FLHU-110

11000

2040

2080

1440

100

22.76

630R

7.5

FLHU-120

12000

2040

2080

1500

100

23.96

630R

7.5

FLHU-130

13000

2040

2080

1680

100

26.35

630R

7.5

FLHU-140

14000

2040

2080

1760

100

28.75

630R

9.3

FLHU-150

15000

2180

2150

1760

100

30.00

710R

9.3

FLHU-160

16000

2220

2120

2020

100

33.54

710R

9.3

FLHU-170

17000

2220

2120

2020

100

34.03

710R

11

FLHU-180

18000

2400

2280

2020

140

35.97

800K

11

FLHU-190

19000

2400

2660

1760

140

38.33

800K

11

FLHU-200

20000

2400

2780

1760

140

40.00

800K

11

FLHU-240

24000

2150

2650

2300

140

48.6

800

15

FLHU-300

30000

2330

2180

2550

140

62.5

900

15

FLHU-350

35000

2550

3260

2850

140

70.8

1000

15

FLHU-400

40000

2710

3420

3050

140

83.7

1000

18.5

Floor Mounted Vertical Units

Unit Model

Unit CFM

Unit Overall Dimensions

Coil Face Area

Length (mm)

Width (mm)

Height (mm)

Sq. Feet

Fan Model

Motor
(Kw)

FLFMVU-010

1000

600

900

1000

2.08

7/7.

0.55

FLFMVU-015

1500

600

1080

1120

3.13

9/9.

0.75

FLFMVU-020

2000

680

1180

1200

4.13

10/10.

1.1

FLFMVU-025

2500

660

1520

1150

5.10

9/9 X 2.

1.5

FLFMVU-030

3000

660

1550

1150

6.08

9/9 X 2.

1.5

FLFMVU-035

3500

660

1760

1150

7.05

9/9 X 2.

2.2

FLFMVU-040

4000

680

2020

1200

8.26

10/10 X 2.

2.2

FLFMVU-045

4500

680

2020

1260

9.44

10/10 X 2.

2.2

FLFMVU-050

5000

800

2140

1350

10.00

12/12 X 2.

3.7

FLFMVU-060

6000

800

2140

1450

12.50

12/12 X 2.

3.7

FLFMVU-070

7000

900

2240

1580

14.51

15/15 X 2.

3.7

FLFMVU-080

8000

900

2320

1640

16.67

15/15 X 2.

5.5

Ceiling Suspending Unit

Unit Model

Air Qty.CFM

Unit Overall Dimensions

Coil Face Area

Length (mm)

Width (mm)

Height (mm)

Sq. Feet

Fan Model

Motor
(Kw)

FLCSU-010

1000

1100

880

480

2.08

7/7.

0.55

FLCSU-015

1500

1160

1030

560

3.13

9/9.

0.75

FLCSU-020

2000

1200

1120

610

4.01

10/10.

1.1

FLCSU-025

2500

1200

1500

560

5.00

9/9 X 2.

1.1

FLCSU-030

3000

1200

1740

560

6.04

9/9 X 2.

1.5

FLCSU-035

3500

1200

1950

560

7.45

9/9 X 2.

1.5

FLCSU-040

4000

1260

1950

610

8.02

10/10 X 2.

2.2

FLCSU-045

4500

1260

2150

610

8.99

10/10 X 2.

2.2

FLCSU-050

5000

1300

1750

780

10.07

12/12 X 2.

2.2

FLCSU-050

5000 (OPT)

1300

2100

690

10.00

12/12 X 2.

2.2

FLCSU-060

6000

1300

2050

780

12.15

12/12 X 2.

3.7

FLCSU-060

6000 (OPT)

1300

2480

690

12.08

12/12 X 2.

3.7

FLCSU-070

7000

1460

2000

910

14.17

15/15 X 2.

3.7

FLCSU-070

7000 (OPT)

1460

2330

780

14.06

15/15 X 2.

3.7

FLCSU-080

8000

1460

2230

910

16.04

15/15 X 2.

3.7

FLCSU-080

8000 (OPT)

1460

2640

780

16.15

15/15 X 2.

3.7

Double Skin Ceiling Suspended Units

Unit Model

Air Qty.CFM

Unit Overall Dimensions

Coil Face Area

Fan Model

Motor (Kw)

Length (mm)

Width (mm)

Height (mm)

Sq. Feet

DD FAN

(SINGLE
PHASE)

FLCSUD-010

1500

900

1020

590

3.02

DD 9/9

0.37KW / 4P

FLCSUD-020

2000

960

1120

590

4.01

DD 10/10

0.55KW / 4P

FLCSUD-030

3000

1100

1400

660

6.11

DD 12/12

0.736KW /6P

FLCSUD-040

4000

960

1950

590

8.02

DD 10/10 # 2

0.55KW / 4P # 2

FLCSUD-050

5000

1100

2100

660

10.00

DD 12/12 # 2

0.736KW / 6P #2

FLCSUD-050

5000 (OPT)

1100

1750

780

10.07

DD 12/12 # 2

0.736KW / 6P # 2

FLCSUD-060

6000

1100

2480

660

12.08

DD 12/12 # 2

0.736KW / 6P # 2

FLCSUD-060

6000 (OPT)

1100

2050

780

12.15

DD 12/12 # 2

0.736KW / 6P # 2

Ventilation Units
Unit Model

Air Qty.CFM

Unit Overall Dimensions

Length (mm)

Width (mm)

Height (mm)

Unit Base (mm)

Fan Model

Motor (Kw)

FLVU-010

1000

800

650

550

100

7" X 7"

0.55

FLVU-015

1500

880

750

580

100

9" X 9"

1.1

FLVU-020

2000

930

850

625

100

10" X 10"

1.1

FLVU-030

3000

1000

870

700

100

12" X 12"

1.5

FLVU-040

4000

1125

1030

790

100

15" X 15"

2.2

FLVU-060

6000

1280

1200

980

100

18" x 18"

3.7

FLVU-080

8000

1425

1360

1220

100

500

5.5

FLVU-100

10000

1500

1450

1370

100

560

5.5

FLVU-120

12000

1600

1525

1500

100

560

5.5

FLVU-150

15000

1600

1650

1480

100

630

7.5

FLVU-180

18000

1900

1850

1660

100

710

9.3

FLVU-200

20000

2050

2050

1740

100

800

9.3

FLVU-240

24000

2050

2050

1850

140

800

11

FLVU-300

30000

2300

2300

1940

140

900

15

FLVU-350

35000

2400

2500

2080

140

1000

15

FLVU-400

40000

2500

2600

2080

140

1000

18.5