Envistar Top

Air handling unit with rotary heat exchanger

Top-connected air handling unit with integrated controls – optimised for saving floor space.

Why choose Envistar Top?

A top-connected duct connection is best suited in approximately 70 per cent of systems with air flow ranges up to 2.8 m³/s.

Envistar Top saves up to 75 per cent of floor space compared to a traditional installation. This makes Envistar Top the most economic and energy-efficient solution for the available floor space. Envistar Top is designed to be able to pass through narrow passages.

Envistar Top – More energy efficient than ever!

Air flow with rotary heat exchanger

0.10–2.80 m³/s

Air flow with counter-flow heat exchanger

0.13–2.80 m³/s

8 sizes

High flexibility and large air flow range

IV Produkt Cloud

Can be controlled and monitored via cloud service

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Cost-effective

Low installation and operating costs

Patented defrosting

ODS Optimised Defrosting System ensures the highest possible annual efficiency

Integrated cooling unit

Option: EcoCooler with 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

Air flow ranges for Envistar Top

m³/hm³/s


	EcoDesign air flow Technical max air flow	Rotor	Rotor w/ cooling unit	Reversible heat pump	Counter-flow exchanger	Counter-flow exchanger w/ cooling unit
28
22
17
12
10
09
06
04
	m³/s 0.0 0.5 1.0 1.5 2.0 2.5 3.0

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Envistar Top with rotary heat exchanger

Air flow

Min:0.1m³/s

Max:3m³/s

Envistar Top with rotary heat exchanger and EcoCooler

Air flow

Min:0.12m³/s

Max:3m³/s

Envistar Top with rotary heat exchanger and ThermoCooler HP

Air flow

Min:0.25m³/s

Max:3m³/s

Envistar Top with counter-flow heat exchanger

Air flow

Min:0.12m³/s

Max:3m³/s

Envistar Top with counter-flow heat exchanger and EcoCooler

Air flow

Min:0.12m³/s

Max:3m³/s

IV Produkt Designer Product selection software

For object-specific data, use our product selection software

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Technical dataforEnvistar Top with rotary heat exchanger

Here you will find dimensions and weights as well as power and performance information about Envistar Top with rotary heat exchanger .

m³/hm³/s

Size	Air flow (m³/s)				Dimension (mm)						Weight (kg)	System voltage
Size	Min	SFP_v1,5	Ecodesign	Max	Width	Height	Length	Width duct connection	Height duct connection	Diameter duct connection	Weight (kg)	System voltage
4	0.1	0.35	0.47	0.5	748	1365	1570	500	200	250	259	400VAC
6	0.15	0.55	0.7	0.7	890	1365	1720	600	250	-	295	400VAC
9	0.2	0.73	0.9	1	1020	1435	2000	700	300	-	430	400VAC
10	0.2	0.73	0.9	1	1020	1435	1990	700	300	-	380	400VAC
12	0.25	1.03	1.2	1.2	1200	1530	2000	900	300	-	520	400VAC
17	0.3	1.52	1.8	1.85	1450	1835	2200	1000	350	-	625	400VAC
22	0.4	1.95	2.3	2.4	1666	1885	2200	1200	350	-	750	400VAC
28	0.4	2.74	2.8	3	1930	1995	2200	1400	350	-	880	400VAC

Technical data for related products

Documentation forEnvistar Top Rotary 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
Brochure Envistar	Brochure	English	3	2024-09
Connection instructions	Connection instructions	English	05	2025-05
Assembly Instructions Envistar Top	Assembly instruction	English	04	2023-11
Dokument under framtagning lyftinstruktion	Assembly instruction	English	00	2025-11
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 Modbus	Configuration and settings	English	-	-
Examples of useful Modbus addresses	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 Top	Certificates and declarations	English	-	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.