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Air Handling UnitsEnergy Efficient Systems

Air Handling Units

� AHU production more than 37 years� Slovenia, Godovič� Bosnia, Sarajevo

� one of the few producers, which produce main components by

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produce main components by themselves� Radial fans� Heat exchangers

� own development

� custom made products

� service

Certificates

� Compliance with the demands of the European directives for machines, low voltage

and electromagnetic suitability.

� Business processes according to standards ISO 9001:2000

� International certificates: TÜV (Higienic grade AHU),

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� Eurovent (Klimair2)

� National certificates : GOST (all versions of AHU), Certificate for epidemiological

irreproachability for the Russian market

TÜV Certificates for Hygienic Air Handling Units

According to standards:

DIN 1946 - 4

4

EN 13053

VDI 6022

Application

� transport

� filtration

� heating

�

Sport objects

Pools

Restaurants

Garages

Business objects

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� cooling

� humidifing and drying

� recuperationResidential buildings

BaloonsHospitals

Industrial objects

Main characteristics

� modular system

� cross section raster: 305 mm (H, B)length raster 30 mm (L)

� panel thickness:� 50 mm

� 33 mm

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� 33 mm� 15 mm

� big flexibility

� selection among 38 standard crosssection sizes

� wide usage field from 1.000 m³/h to100.000 m³/h.

Main characteristics

� rigid housing

� flexible solutions matching space at site

� simple connecting of units

� low energy consumption

� possibility of corrosion protection

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� possibility of corrosion protection

� good sound isolation

� long life period

� easy maintenance

Main characteristics

� system with plate heat exchanger 65%

� system with double plate-heat exchanger 85%

Selection of an optimal recuperation system 1/2

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� system with counter-flow heat exchanger 95%

Main characteristics

� system wit rotary wheel 80%

� system with run around coil 50%

Selection of an optimal recuperation system 2/2

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� system with heat pump

AHU Series

Casing 50 mm 50 mm 33 mm 15 mm

Klimair2 TopAir Optima Base

KNN - indoor version x x x x

KZN - outdoor version x x x

KHN - hygienic version x x

KBN - swimmingpool version x x

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KBN - swimmingpool version x x

KCN - compact unit x x

KSM - ceiling units x

EN 1886

Casing strength D1 D1 D2 D2

Casing air leakage L2 L2 L3 L3

Thermal transmittance T3 T2 T3 T4

Thermal bridging TB3 TB2 TB4 TB4

AHU Series

Regarding installing place adjustment

� horizontal version L

� double-stage version D

� parallel version V

� vertical version S

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� vertical version S

� combined version K

Air Handling Units

System with plate heat exchanger

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Air Handling Units

System with rotary wheel

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Air Handling Units

System with mixing, heating, cooling

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Air Handling Units

Indoor AHU Klimair2 KNN

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Air Handling Units

Outdoor AHU Klimair2 KZN

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Air Handling Units

TopAir Unit (casing)

� Thermal brake aluminium base profile

� Heat transfer coefficient:

T2 according to EN 1886.

� Thermal bridge coefficient:

New!

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� Thermal bridge coefficient:

TB2 according to EN 1886.

� Thermal break between unit and baseframe to reduce heat transmission andcondensation.

� Doors and panells with integratedthermal break profile frame

� Doors with double rubber seals

� corners are screwed on all base aluminium profiles

� better air thigtness and mechanicalstability

TopAir Unit (casing)

Air Handling Units

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� hygiene construction without grooves, quickand easy to clean and maintenance

� all joints between the frame and the bottom, top and back wall panels are sealed, on the

TopAir Unit (casing)Hygienic type regarding to VDI 3803 and VDI 6022

Air Handling Units

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top and back wall panels are sealed, on the inside, with clean room application putty

� AHU design for units in the hospitals, foodindustry, pharmaceutical industry, …

Air Handling Units

Hygienic AHU Klimair2 KHN

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Air Handling Units

Adiabatic Unit

� Efficiency of sensible heat(temperature) recovery up to 85%

� Water is pressurized to 70 barand atomized through specialnozzles

�

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� Hygienic system with Hygieniccertificates according to VDI 6022and other hygienic standards.

� The system allows the using of:- ordinary tap water- softened water- demineralized water

Air Handling Units

Adiabatic Unit

exhaust airexit air

26°°°°C /50%19,5°°°°C /98%

Working system concept - summer

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outside air supply air

32°°°°C /40% 23,5°°°°C /66% 20°°°°C /75%

80%

Air Handling Units

Nozzle system, built in air handling unit

Three valves for 6 – step (binary) control – a sufficient fine tuning of humidification load

- 1.group…valve 1 - first nozzle

Adiabatic Unit

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branche

- 2. group…valve 2 - second nozzle branche

- 3. group… valve 3 – third nozzle branche

Swimmingpool AHU Klimair2 KBN

Air Handling Units

� Usage from1994

� Control system for dehumidifing, coolingand heating of swimmingpool room

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� Big amount of senzibile heat in

exaust air: 28 ÷ 30 °C

� Big amount of latent heat in

exaust air; 55÷60% r.v.

� Heat recovery makes sense

� High humidity and agressivechemical materials can harm AHU

Swimmingpool AHU Klimair2 KBN

Air Handling Units

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Protection in all elements in AHU

Swimmingpool AHU Klimair2 KBN

Air Handling Units

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Operation without drying the air, whenpool is not in usage

Swimmingpool AHU Klimair2 KBN

Air Handling Units

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Operation with drying the air, whenpool is not in usage

Bazenska izvedba Klimair2 KBNSwimmingpool Klimair2 KBN

Air Handling Units

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Operation with drying and withoutdrying the air, when pool is in usage.

Swimmingpool AHU Klimair2 KBN

Air Handling Units

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Operation with drying and withoutdrying the air, when pool is in usage

in summer time.

Air Handling Units

Ceiling units KSM (15mm)

� 2 sizes: KSM 20 in KSM 30.

� for airflow from 500 m³/h to

3000 m³/h.

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Air Handling Units

Optima AHU (33 mm)

� application for indoor rooms

� modular system and sizes like

Klimair2

� 13 different sizes

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� 13 different sizes

� excellent sound insulation

� good thermal insulation

� for airflow from 500 m³/h to

25.000 m³/h

Air Handling Units CompAir Compact Unit

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When Practicality meets Completness

2008 2010

Air Handling Units

CompAir Compact Unit

� 50 mm panel

� 7 different sizes,1.000-11.000 m3/h

� counter flow heat exchanger with

by-pass

�

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� 2 direct driven fans (EC motor)

� 2 panel filters (F7, G4)

� indoor&outdoor version

� plug&play unit with control system

(Carel regulator)

� wet efficiency > 90 %

Air Handling Units CompAir Compact Unit

KN 1000

KN 2000

KN 3000

KN 4000

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Flow range

New

New

New

0 1000 2000 3000 4000 5000 6000 7000 8000 9000 1000011000

[m3/h]

KN 6000

KN 8000

KN 10000

CompAir Compact Unit

Air Handling Units

for sizes ≤ 4000

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Counter flow heat exchanger

for sizes ≥ 6000

Air Handling Units CompAir Compact Unit

90

92

94

96

98

Effi

cien

cy o

f hea

t rec

over

y (%

)

Wet efficiency Dry efficiency

36Heat recovery supply air: -13/90, exaust: 20/50

80

82

84

86

88

800 1200 1600 2000 2400 2800 3200 3600 4000

Air volume qV [m3/h]

Effi

cien

cy o

f hea

t rec

over

y (%

)

Air Handling Units

CompAir Compact Unit

SFP 3

SFP 4

400

500

600

700

Ext

erna

l sta

tic p

ress

ure

[Pa]

SFP diagrams

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SFP 1,4

SFP 1,7

SFP 2

SFP 2,2

SFP 2,5

0

100

200

300

400

0 400 800 1200 1600 2000 2400 2800 3200 3600Air volume qV [m3/h]

Ext

erna

l sta

tic p

ress

ure

[Pa]

Accessories

� Water heater� Electrical heater� Water cooler� Dx cooler

CompAir Compact Unit

Air Handling Units

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� Dx cooler� Left and right versions� Indoor and outdoor versions� Siphon with heating� Roof walleys� Round connections� Flexible connections� Bottom connections

Air Handling Units

CompAir Compact Unit Control System

Basic version has following functions included

� Continous or step-wise control of heating and cooling� Continous control of recuperation� Free cooling function� Setting of different air volumes by scroll mode

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� Setting of different air volumes by scroll mode via display, external signal 0-10 V or by step-wise mode

� Clock card for time schedule� Remote control by LCD display� Fire sequence, free programming or override

Airflow: 2.800 m3/h

Efficiency: 92%

ClassicCrossflow-heatexchanger eff..: 58%

3952,4

3160,6

2370,5

2777,2

4008,5

2337,2

1872,21635,3

2369,5

2000

2500

3000

3500

4000

4500

Q (k

Wh

)

Energy saving - comparison (kWh)

CompAir Compact Unit

Air Handling Units

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Comparison: cross-flow (PWT) and counter-flow (GS) heat exchanger

58%

Temp./rel. hum. Exaust air: 20°C/50%

Operation time:11h/day6 days/week

Calculated by standard VDI 2071:

Difference per year: 7.908 kWh / unit

1386,5

237,1

1424,11396,8

818

139,8

840,4

1635,3

0

500

1000

1500

jan feb mar apr maj jun jul avg sep okt nov dec

Q (k

Wh

)

Mesec

GS 95/1000 PWT10/600/100075,5

[MWh/year] razozar qmfffQ ⋅⋅⋅⋅= &

Control System

ControlersControlers andand regulationregulation equipmentequipment

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� LONWorks� EIB / KNX� BACnet� Ethernet – TCP/IP

Types of comunications in buildings

Control System

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� Ethernet – TCP/IP� Modbus� CANOpen� CAN� Wireless (EnOcean, ZigBee ...)� ...

LONWorks

MPBus

� Air Flow� Pressure� Power Input� Cooling Capacity� Heating Capacity� Sound Test (airborne & in duct)

Meassured characteristics

Air Handling Units – Eurovent from 2008

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� Sound Test (airborne & in duct)� Heat Recovery

� Casing Strength� Casing Air Leakage� Filter Bypass Leakage

Mechanical characteristics

Air Handling Units

� www.eurovent-certification.com

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� old classification: A, B, C (until 03/2009)� new classification: A, B, C, D, E, F (from 01/2010)

� velocity through AHU� heat recovery efficiency� air pressure drop

Energy efficient classes

Air Handling Units – Eurovent from 2008

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� air pressure drop� electric power consumption

Selection Programme Aircalc

� it selects the optimal size of air handling unit

� it draws an AHU with all necessary measures

� it converts drawing in dwg form

� it makes a plan description of air handling unit

it calculates price

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� it calculates price

� it calculates all necessary data

� available in many languages

� great internet support

� possibility of expansion on international cooperation

Selection Programme Aircalc

Selection of an

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Selection of anoptimum size ofAHU

Selection Programme Aircalc

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Drawing

Selection Programme Aircalc

Drawing -

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Drawing -

Different views

Selection Programme Aircalc

Technical

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TechnicalDescription

Selection Programme Aircalc

Designer

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DesignerDescriptionMS Word

Selection Programme Aircalc

H-X

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H-Xdiagramme

Selection Programme Aircalc

Noise level

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Noise leveldiagramme

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