Air Handling Unit

Kaizen delivers HVAC solutions for satisfying industry demands. Air Handling Unit (AHU) controls the HVAC system. Kaizen offers chilled water and DX-type of Air Handling Unit.

What is AHU?

AHU is the most significant source of dust particle elimination and air conditioning. It is installed between unfiltered air and filtered air system. AHU system controls temperature, air filtration and humidity as per the industrial requirement. Kaizen’s AHU in the HVAC system readily senses and modifies air conditions for final treatment of air-conditioned environments.

Uniqueness

  • Available in different sizes and colours
  • Temperature control
  • Design Flexibility
  • User-friendly and easy to maintain
  • Humidity control
  • Air filtration
  • Energy efficient and low sound

Technical Specifications

Variables

Specifications

Panels

Single/Double skin panels

Insulation

Sandwich PUF insulation

Panel material

Galvanised steel/Aluminium/Stainless steel

Return airflow

8440 m3/h

Supply airflow

9215 m3/h

Net overall height

Supply=1200 mm

Return=1150 mm

Overall width

Supply=1750 mm

Return=1750mm

Outer skin material

Grey plastisol

Inner skin material

Galvanised

Overall length

4140 mm

Unit base height

100 mm

Insulation type

Foam

Frame Structure

  • Aluminium alloy structure, high strength, light-weight, Anti-corrosion
  • Adoption of the full aluminium alloy anti cold bridge frame structure
  • Every angle of the frame connected the aluminium alloy structure component with the excellent strength, light-weight, anti-corrosion capability

Temperature Control

  • High-quality air-conditioning 1/2inch copper heat exchange tube. hydrophilic aluminium foil corrugated sheet via mechanical expansion
  • Wind resistance and good heat transfer performance

Filtration

  • Primary filter 10 micron and secondary filter 5 microns with efficiency 90% washable HDPE Media in FRP PU coated frame for GI model mounting after mixing chamber
  • Recirculation of 80% air recalculated with 20% fresh air, also an option for ratio customization
  • Mini plate HEPA filter in aluminium frame Final = 0.3 microns with an efficiency of 99.997% (anti –microbial treated media)

Different components of AHU

Following are the components of the air handling unit:

  • Damper
  • Attenuator
  • Air washer
  • Chiller
  • Fan units
  • HEPA filters

Damper

It is the basic component that acts as a barrier for airflow ducts for regulation. Our design specialists collaborate with engineers to deliver customized damper by considering the economy and energy efficiency. Kaizen offers highly reliable dampers as backdraft and fire dampers for convenient air circulation.

Backdraft damper

Component

Backdraft damper

Operating temperature

-40° to 93°C

Frame and blade

Extruded aluminium

Blade thickness

1.2mm

Blade seal

Vinyl

Bearing

Sleeve

Damper width (in mm)

External wind velocity/Max. back pressure

Max. system velocity

Leakage (% of max. flow)

1016

55 mph/1.5 in. wg

1,000

1.5

914

70 mph/2.5 in. wg

1,000

1.5

610

85 mph/3.5 in. wg

1,000

2.0

305

95 mph/4.5 in. wg 1,000 4.0

Fire dampers

Component

Fire dampers

Operating temperature

Up to 141C

Frame blade

Galvanised blade

Blade thickness

Blade seal

Stainless steel with extruded silicone

Damper width

254 to 1219 mm

Bearings

Stainless steel

Sleeve

 

Attenuator

Kaizen provides total comfort with silent operation HVAC with a highly effective attenuator. The anticorrosive fiber-glass of inner lining act as an acoustic absorbent with perforated skin.

Technical specifications

Variables

Specifications

Casing

0.9 mm

Material

G.I. and Stainless steel

Splitters

0.9 mm thick 3 mm perforated hole

Insulation

48 kg/m3

Flanges

25 mm

Dimensions

600x600x1500

  

Regenerated noise levels

Face velocity

Static pressure

Octave band centre frequency (Hz)

(fpm)

(Inch wg)

63

125

250

500

1k

2k

4k

8k

0

0

2dB

7dB

19dB

34dB

44dB

36dB

27dB

20dB

500

0.07

2dB

7dB

18dB

33dB

42dB

35dB

28dB

22dB

1000

0.23

1dB

7dB

18dB

32dB

41dB

35dB

28dB

22dB

1500

0.52

1dB

6dB

17dB

31dB

40dB

34dB

29dB

23dB

2000

0.891dB 6dB17dB 31dB 35dB 33dB 28dB 23dB

 

Insertion loss values in dB

Face velocity

Static pressure

Octave band centre frequency (Hz)

(fpm)

(Inch wg)

63

125

250

500

1k

2k

4k

8k

0

0

2dB

7dB

19dB

34dB

44dB

36dB

27dB

20dB

500

0.07

2dB

7dB

18dB

33dB

42dB

35dB

28dB

22dB

100

0.23

1dB

7dB

18dB

32dB

41dB

35dB

28dB

22dB

1500

0.52

1dB

6dB

17dB

31dB

40dB

34dB

29dB

23dB

2000

0.89

1dB

6dB

17dB

31dB

35dB

33dB

28dB

23dB