Go to main content

We are launching a new website! Learn more

Logo

Follow us

linkedininstagramfacebookyoutube
Envistar Flex – EcoCooler

Air handling unit with rotary heat exchanger

Air handling unit with integrated controls and a wide range of functional sections. Integrated cooling unit with stepless cooling capacity.

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

Counter-flow exchanger w/ cooling unitRotorRotor w/ cooling unitReversible heat pumpCounter-flow exchangerPlate heat exchangerCoil heat exchanger double-stackedCoil heat exchanger
850
740
600
480
400
360
300
240
190
150
100
m³/s
0.0
1.5
3.0
4.5
6.0
7.5
9.0

Filter within Envistar Flex

Technical dataforEnvistar Flex with counter-flow heat exchanger and EcoCooler

Here you will find dimensions and weights as well as power and performance information about Envistar Flex with counter-flow heat exchanger and EcoCooler .

SizeAir flow (m3/s)Dimension (mm)Control unit locationRefrigerant amount (kg)Effect and fuse
MinSFPv1,6EcodesignMaxWidthHeightLengthWidth duct connectionHeight duct connectionR454B Circuit 1R454B Circuit 2tonne CO2e (R454B) Circuit 1tonne CO2e (R454B) Circuit 2Cooling effect (kW)System voltage
100-2V
0.22
0.68
0.94
0.96
1020
1090
3295
700
300
On unit roof
1.8
-
0.84
-
15
400VAC
150-2V
0.33
0.95
1.37
1.56
1120
1470
3800
800
500
On unit roof
2.9
-
1.35
-
23.7
400VAC
190-2V
0.42
1.39
1.75
2
1400
1470
3800
1000
500
On unit roof
3.7
-
1.72
-
30.6
400VAC
240-2V
0.49
1.7
2.1
2.44
1400
1686
4435
1000
600
On unit end
4.1
-
1.91
-
32.1
400VAC
300-2V
0.57
2.25
2.74
2.87
1616
1686
4590
1200
600
On unit end
5.1
-
2.38
-
16.7
400VAC
360-1V
0.74
2.44
3.2
3.7
1616
2060
4990
1200
800
On unit end
6
-
2.8
-
51.1
400VAC
360-2V
0.85
2.44
3.2
3.7
1616
2060
4990
1200
800
On unit end
6
-
2.8
-
55.1
400VAC
400-1V
0.8
2.93
3.46
3.86
1880
1900
4690
1400
700
On unit end
7
-
3.26
-
52.3
400VAC
400-2V
0.92
2.93
3.46
3.86
1880
1900
4690
1400
700
On unit end
7
-
3.26
-
59.1
400VAC
480-0V
0.93
3.6
4.29
4.66
1990
2060
5290
1400
800
On unit end
8.1
-
3.77
-
54.9
400VAC
480-1V
1.07
3.6
4.29
4.66
1990
2060
5290
1400
800
On unit end
8.7
-
4.05
-
62.7
400VAC
480-2V
1.07
3.6
4.29
4.66
1990
2060
5290
1400
800
On unit end
8.7
-
4.05
-
75.7
400VAC
600-1V
1.15
4.4
5.3
5.78
2200
2270
5440
1600
800
On unit end
8.2
-
3.82
-
63.1
400VAC
600-2V
1.16
4.4
5.3
5.78
2200
2270
5440
1600
800
On unit end
8.2
-
3.82
-
76.7
400VAC
600-3V
1.16
4.3
5.3
5.78
2200
2270
5440
1600
800
On unit end
6.2
3.6
2.89
1.68
90.5
400VAC
740-2V
1.42
4.6
6.03
7.08
2480
2480
5910
2000
900
In unit next to fan
10.1
-
4.71
-
81.9
400VAC
740-3V
1.42
4.5
6.03
7.08
2480
2480
5910
2000
900
In unit next to fan
9.3
4.1
4.33
1.91
111.6
400VAC
850-1V
1.61
4.98
6.6
8.06
2560
2740
6170
2200
1000
In unit next to fan
11.5
-
5.36
-
85.5
400VAC
850-2V
1.61
4.86
6.6
8.06
2560
2740
6170
2200
1000
In unit next to fan
9.3
5.8
4.33
2.7
101.7
400VAC
850-3V
1.61
4.86
6.6
8.06
2560
2740
6170
2200
1000
In unit next to fan
9.3
5.8
4.33
2.7
127.3
400VAC

Technical data for related products

Documentation forEnvistar Flex Counter-flow Heat Exchanger EcoCooler

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 EcoCooler

Brochure

English

1

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 BACnet BYP

Configuration and settings

English

-

-

Example AHU BACnet ODS

Configuration and settings

English

-

-

Example AHU Modbus

Configuration and settings

English

-

-

Example AHU Modbus BYP

Configuration and settings

English

-

-

Example AHU Modbus ODS

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!

Contact us