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Envistar Flex

Air handling unit with coil heat exchanger

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

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

Cost-effective

Low installation and operating costs

mollier diagram

Air flow ranges for Envistar Flex

EcoDesign air flow

Technical max air flow

Coil heat exchanger double-stackedRotorRotor w/ cooling unitReversible heat pumpCounter-flow exchangerCounter-flow exchanger w/ cooling unitPlate heat exchangerCoil heat exchanger
1580
1540
1280
1250
1080
980
850
740
600
480
400
360
300
240
190
150
100
060
m³/s
0.0
2.5
5.0
7.5
10.0
12.5
15.0

Filter within Envistar Flex

Technical dataforEnvistar Flex with coil recovery

Here you will find dimensions and weights as well as power and performance information about Envistar Flex with coil recovery .

SizeAir flow (m3/s)Dimension (mm)Control unit locationWeight (kg)System voltage
MinSFPv1,5EcodesignMaxWidthHeightLengthWidth duct connectionHeight duct connection
60
0.11
0.37
0.5
0.55
890
960
2530
500
300
On unit roof
535
400VAC
100
0.17
0.52
0.6
0.83
1020
1090
2530
700
300
On unit roof
615
400VAC
150
0.29
0.94
1.15
1.5
1120
1470
2750
800
500
On unit roof
845
400VAC
190
0.38
1.18
1.58
2
1400
1470
2750
1000
500
On unit roof
970
400VAC
240
0.47
1.49
1.88
2.4
1400
1686
2970
1000
600
On unit end
1095
400VAC
300
0.54
1.89
2.3
3
1616
1686
2970
1200
600
On unit end
1250
400VAC
360
0.66
2.4
2.89
3.7
1616
2060
3430
1200
800
On unit end
1540
400VAC
400
0.66
2.6
3.05
4
1880
1900
3170
1400
700
On unit end
1510
400VAC
480
0.85
3.1
3.7
4.8
1990
2060
2970
1400
800
On unit end
1740
400VAC
600
1.06
3.89
4.6
6
2200
2270
2970
1600
800
On unit end
2030
400VAC
740
1.19
5.3
6.3
7.8
2480
2480
3590
2000
900
In unit next to fan
2745
400VAC
850
1.35
6.25
7.5
8.8
2560
2740
3590
2200
1000
In unit next to fan
2870
400VAC
980
1.66
7.4
8.65
9.5
2860
2890
3590
2400
1100
In unit next to fan
3430
400VAC
1080
1.95
7.9
9.5
11.5
3000
3000
4040
2400
1100
In unit next to fan
4180
400VAC
1250
1.75
7.6
9.2
9.8
2580
3360
4040
2200
1200
In unit next to fan
4230
400VAC
1280
2.24
9.1
10.9
12.8
3180
3180
4040
2600
1200
In unit next to fan
4450
400VAC
1540
2.35
9.9
11.9
13.5
3180
3360
4040
2600
1200
In unit next to fan
4750
400VAC
1580
2.48
10.9
13.1
14.1
3500
3500
4040
3000
1200
In unit next to fan
4980
400VAC

Technical data for related products

Documentation forEnvistar Flex Coil 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.

Document

Document type

Language

Version

Download/Share

Brochure Envistar

Brochure

English

3

Operation and maintenance Envistar Flex

Operation and maintenance

English

00

Connection instructions

Connection instructions

English

05

Assembly Instructions Envistar Flex

Assembly instruction

English

06

Assembly Instructions Envistar Flex Size 060-1580

Assembly instruction

English

01

Dokument under framtagning lyftinstruktion

Assembly instruction

English

00

Immersion detector

Assembly instruction

Swedish/English

-

-

lyftinstruktioner

Assembly instruction

English

-

-

BACnet addresses for Counter flow, Plate and Run around coil heat exchangers, examples

Configuration and settings

English

-

-

BACnet Addresses for EcoCooler and ZON, examples

Configuration and settings

English

-

-

BACnet IP communication, object addresses for AHU V1 en

Configuration and settings

English

-

-

Example AHU Modbus

Configuration and settings

English

-

-

Examples of useful Modbus addresses

Configuration and settings

English

-

-

Modbus addresses for Counter flow, Plate and Run around coil heat exchangers, examples

Configuration and settings

English

-

-

Modbus Zone 1

Configuration and settings

English

-

-

Modbus Zone 2

Configuration and settings

English

-

-

Modbus Zone 3

Configuration and settings

English

-

-

Modbus Zone 4

Configuration and settings

English

-

-

Modbus Zone 5

Configuration and settings

English

-

-

BACnet conformance certificate en

Certificates and declarations

English

-

-

Climatix Touch screen manual en

-

English

-

-

EPD Environmental Product Declaration – Envistar Flex

Certificates and declarations

Swedish/English/German/Norwegian/Danish

-

2025

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.

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

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

Payback in 5 years when replacing 90s air handling unit

By replacing an old air handling unit, the property owner lowered energy use by 85,000 kWh/year – a saving equal to 50 kWh/m2/year. In this article, you will learn more about how it happened.
Reference

Energy efficiency and improved indoor climate in a historic building

Energy efficiency and improved indoor climate with combined heating and cooling in an older building.
Reference

Ongoing projects?

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

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