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Envistar Flex

Air handling unit with rotary heat exchanger

Innovative air handling unit with integrated controls and a wide range of functional sections.

Why choose Envistar Flex?

Envistar Flex is available with a wide range of functional sections, fans, motors and heat recovery units, providing excellent conditions for energy-optimised air handling.

Envistar Flex can be delivered in sections to facilitate transport into the building. There are also versions that are designed especially to be placed outdoors.

The units are designed for comfort ventilation of premises and are suitable for most types of property, e.g. schools, offices, hotels, shopping centres, industrial premises and hospitals.

Envistar Flex – air handling units with high flexibility. Here in an outdoor version on the roof of battery manufacturer Modine.

Airflow

0.10–13.0 m3/s

18 sizes

High flexibility and large airflow range

IV Produkt Cloud

Can be controlled and monitored via cloud service

Explore IV Produkt Cloud

Cost-effective

Low installation and operating costs

Patented defrosting

ODS Optimised Defrosting System ensures the highest possible annual efficiency

Integrated cooling unit

Option: EcoCooler, also with cooling recovery. Stepless control of cooling power via frequency converter.

Comfort cooling and heat pump in one

Option: The reversible heat pump ThermoCooler HP with stepless control of cooling and heating power

Optimised energy efficiency

Energy optimisation function – ECO

Efficient fans

The fans have PM motors with EC or frequency converter control

Wide selection of sections

Mixing section, recirculation section and much more available as options

For all weather conditions

Available in outdoor configuration

mollier diagram

Air flow ranges for Envistar Flex

EcoDesign air flow

Technical max air flow

Plate heat exchangerCounter-flow exchanger w/ cooling unitRotorRotor w/ cooling unitReversible heat pumpCoil heat exchanger double-stackedCoil heat exchanger
1580
1280
1250
1080
980
850
740
600
480
400
360
300
240
190
150
100
m³/s
0.0
2.8
5.6
8.4
11.2
14.0

Filter within Envistar Flex

Technical dataforEnvistar Flex med plate heat exchanger

Here you will find dimensions and weights as well as power and performance information about Envistar Flex med plate heat exchanger .

SizeAir flow (m3/s)Dimension (mm)Control unit locationWeight (kg)System voltage
MinSFPv1,5EcodesignMaxWidthHeightLengthWidth duct connectionHeight duct connection
100
0.33
0.7
0.45
1
1020
1090
2640
700
300
On unit roof
500
400VAC
150
0.43
1.2
0.9
1.7
1120
1470
2980
800
500
On unit roof
700
400VAC
190
0.55
1.52
1.15
2.2
1400
1470
2980
1000
500
On unit roof
800
400VAC
240
0.74
1.9
1.9
2.6
1400
1686
3500
1000
600
On unit end
950
400VAC
300
0.86
2.2
2.2
3.3
1616
1686
3500
1200
600
On unit end
1050
400VAC
360
1.19
2.6
2.6
3.8
1616
2060
3800
1200
800
On unit end
1400
400VAC
400
0.95
2.7
2.7
3.65
1880
1900
3500
1400
700
On unit end
1300
400VAC
480
1.53
3.3
3.3
5.2
1990
2060
3800
1400
800
On unit end
1600
400VAC
600
1.7
3.6
3.6
5.8
2200
2270
3800
1600
800
On unit end
1900
400VAC
740
2.3
5.05
5.05
8.3
2480
2480
4840
2000
900
In unit next to fan
2500
400VAC
850
2.85
6.1
6.1
9.5
2560
2740
5110
2200
1000
In unit next to fan
2800
400VAC
980
3.5
6.9
6.9
10
2890
3085
5110
2400
1100
In unit next to fan
3300
400VAC
1080
3.66
7.1
7.1
11
3000
3195
5250
2400
1100
In unit next to fan
4300
400VAC
1250
3.8
7.6
7.6
10
3360
3555
5580
2200
1200
In unit next to fan
3900
400VAC
1280
4.56
8.1
9.4
12.7
3180
3375
5580
2600
1200
In unit next to fan
4700
400VAC
1580
5.84
9.5
10.8
14
3500
3695
5580
3000
1200
In unit next to fan
5100
400VAC

Technical data for related products

Documentation forEnvistar Flex Plate Heat Exchanger

Here you will find general documentation for this product series. Download the latest versions of product brochures, instruction manuals, certificates, and other documents.

Your air handling unit

If you are looking for information about your AHU, search using the order number.

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Control equipment with proprietary software

The entire range has integrated control equipment with software developed by us. We use Siemens Climatix hardware. The control equipment offers over 100 standard features to choose from so that you can optimise according to your needs. Air flow rates and temperatures can be optimised easily. The units can be connected to the web, IV Produkt Cloud or a parent system (BMS) via multiple communication protocols.

Project-specific electrical and control diagrams are included in the delivery. The unit has been function-tested and is ready for commissioning.

Easy site transportation of Envistar Flex
with ThermoCooler HP

Thanks to the smart solutions of split design for the rotary heat exchanger and the reversible heat pump ThermoCooler HP, this large unit is easily transported through a standard door. To learn more, watch the video and get some helpful tips along the way!

  • Air flow: 4.5 m3/s
  • Unit size (mounted): W 2220 x H 2465 x L 3760 mm
  • Split in: 11 sections
  • Door size: 2100 x 900 mm

Full control with IV Produkt Cloud

IV Produkt Cloud is a cloud service for our air handling units with integrated controls, giving you and your colleagues the ability to monitor your systems wherever you are.

  • Always accessible wherever there is Internet access
  • All systems collected in one place
  • Alarm monitoring via PC or smartphone
  • Possible to analyse and act quickly
  • Control of the indoor climate in your properties everywhere and anytime

Advantages of IV Produkt Cloud

Market Hall replaces air handling unit – saves 160,000 kWh/year

With a payback period of 3.7 years, the market hall’s new air handling unit is an investment that pays for itself quickly – a sustainable combination of energy efficiency and comfort.
Reference

Major energy savings by replacing older air handling units

The Palladium in Cologne, Germany, hosts concerts, galas, corporate events, trade fairs, and conferences for up to 4,000 guests. To improve comfort, the owner replaced the old ventilation units without heat recovery and added cooling and heat pumps for a better indoor climate.
Reference

Improve energy efficiency class by replacing older air handling units

To meet future demands, Skandia Fastigheter is investing in new ventilation at the Nova Lund shopping center – with the goal of moving from energy class D to A.
Reference

Replacement of air handling unit – 2 years later

Together with Marcus Arhov from Emilshus, we return to an office building – two years after its old air handling unit was replaced.
Reference

Smart solution simplified the transport into an older building

In central Oslo, the street Karl Johans gate runs through the city. At Karl Johans gate 2, four Envistar Flex size 300 were installed with the integrated cooling unit EcoCooler. Thanks to the Easy Access concept, the site transport went very smoothly.
Reference

Fitting air handling units – when every centimetre counts

Every centimetre counts when fitting energy-efficient air handling units in one of Bristol's largest office buildings, the EQ Building.
Reference

Ongoing projects?

Together, let's find the optimal solution for you!

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