This document describes modular air handling units (AHUs) and their components. It discusses the EU size ranges from 0.2-34 m3/s and their casing, dampers, filters, coils, heat recovery, fans, and silencers. It provides details on materials, performance standards, installation, and maintenance for these various components. The purpose is to outline the technical specifications and options for modular AHUs to assist in selection and documentation.

1. Modular Air Handling Unit
EU

2. Air Handling unit Range
0.2-1.0 m3/s
0.25-8 m3/s
0.5-34 m3/s 0.2-8 m3/s

3. EU
 Casing
 Dampers
 Filters
 Coils
 Heat recovery
 Fans
 Silencers
 Software

4. Certification
•Eurovent
•ISO 9001
•ISO 14001
http://www.eurovent-certification.com

5. EU size range, 11 - 53
50-53
40-44
10 m3/s
30-33
20-22 5 m3/s
11

6. EU size range, 60 - 84
80-84
30 m3/s
71-73
25 m3/s
60-64
15 m3/s

7. Casing
Robust steel frame
50mm casing panels
Bolted framework

8. Casing
Galvanized steel
Stainless steel
Plastic coated steel
50 or 140 kg/m3 density mineral wool
(Post insulation optional)

9. Connection between blocks

10. Casing
Inspection door
Adjustable door hinge
Mechanically fixed
replaceable door seal

11. Casing - Door hinge

12. Casing - Handle

13. Casing - Door handle safety catch

14. Lifting

15. Transport packaging

16. Base frame

17. Hygiene Casing

18. Outdoor Casing
Effective protection against rain and snow

19. Outdoor Casing

20. Dampers
100 mm blade
200mm blade

21. Damper
Performance - leakage rate
4 3 2 1
Pressure difference, Pa
Leakage flow, l/s per m2
CEN Standard EN 1751

22. Damper
Blade seal
Blade profile

23. Damper

24. Filter
 Panel filters Flat or pleated G2 – G4
 Bag filters Synthetic/glass fibre
Short/long G3-G4 & F5-F9
Compact F6 – F9
 Carbon filters Impregnated/
Non-impregnated
 HEPA filters H 10 - H14

25. Filter
New filter frame
Even lower leakage
Easily removable
Panel filter
Bag filter
Pre-filter
Service from side or
front.

26. Carbon filter

27. Absolute filter
 Eliminates risk of by-pass leakage.
 ”Fail-safe”.
 No liquid seals are used.
 Quick and reliable installation.

28. Filter accessories

29. Heat exchangers
Air vent
Wide range of materials
and capacity steps
Coil drain
All connections are now threaded

30. Heat exchangers
Purpose made pipe seals for low air leakage and
vapour seal for panel.

31. Heat exchangers
Larger Intermediate
cooling coils condensate
tray
Food grade hose

32. Heat exchangers
Water and air trap

33. Heat Recovery
Plate heat Liquid-coupled Rotary heat
exchanger heat exchanger exchanger

34. Recuterm - Plate heat exchanger
•Two sizes
•Optional by-pass damper
Advantages
Simple
Moderate heat recovery
Low risk of odour and bacteria transfer
Disadvantages
Plant room space.
Frost risk.
Stainless steel drain tray
Aluminium or epoxy coated aluminium plates

35. Ecoterm - liquid coupled heat exchangers
Advantages
•No risk of transfer
•Supply and extract can be separate
•Moderate efficiency
Disadvantages
•More complex installation
•Frost risk

36. Econet - liquid coupled heat exchangers
Advantages
•No risk of transfer
•Supply and extract can be separate
•High efficiency
•Able to use waste heat.
•Good heat recovery, 60-70%
•Easy to implement district cooling
•Low energy costs
•Compact units give better installation spaces
•Frost protected
Disadvantages
•More complex installation
Return
Heating/cooling

37. Regoterm - Rotary heat exchanger
Advantages
•High efficiency
•Small space requirement
•Can recover moisture
•Can recover cooling
•Complete with speed control
Disadvantages
•Possible transfer of air and odour
•Demand on supply and extract position
New drive motor
•Improved reliability
•Lower noise
•Better control

38. Fan
Centrifugal fan
Plug fan
Axial fan

39. Centrifugal fan

40. Fan testing
Every centrifugal fan
is tested in our factory
before delivery.
•Fan speed
•Vibration
•Motor current

41. Q-Master

42. Evaporative humidifier

43. Sound attenuator
Why use an AHU silencer?
•High sound reduction in the
right frequency bands.
•Low regenerated noise.
•Noise is treated near the
source.
•Low pressure drop.
•Unit casing gives low radiated
noise level.

44. Sound attenuator
Traditional silencer splitter

45. Sound attenuator

46. Sound attenuator

47. Sound attenuator

48. Selection program - ACON

49. Life Cycle Cost (LCC)
Generally the price is the main deciding factor in the purchasing
decision.
In Sweden today, LCC is becoming the most important issue.
LCC is a tool to help evaluate the total cost during the life of a
product.
Investment
Energy

50. Documentation
 Catalogue
 Brochures
 Web site
 Product selection program
 Installation instruction
 Maintenance instruction
 Spare parts list