Reduce operating costs NOW

ECFanGrid Retrofit – the efficient fan replacement

Reduce operating costs NOW

ECFanGrid Retrofit – the efficient fan replacement



ECFanGrid is a brand of Rosenberg Ventilatoren GmbH

Replace old fans with Rosenberg Ventilatoren GmbH now!

Reduce your monthly operating costs by an average of 50% and protect the environment through lower energy consumption.

1
RETROFITTED SYSTEMS
1 MW
ENERGY SAVINGS PER YEAR
1 t
CO2 SAVINGS PER YEAR
Energy Efficiency made in Germany

The retrofitting of existing systems, especially the replacement of fans, has an huge energy saving potential. At the same time, today's fan technology can sustainably improve plant availability, maintenance and the building climate.

By replacing old, inefficient fans with modern, energy-efficient EC fans, up to 50% of energy and CO2 can be saved, depending on the building and system. Of course, this is also reflected in lower operating and energy costs - at relatively low investment costs: While the share of a fan in the investment costs of an HVAC system is a maximum of 3%, its share in the operating costs is up to 70%.

Numerous retrofit examples from various types of non-residential buildings - from hotels to airports - show that the payback period for a fan replacement is on average only between two and five years, depending on the system and building.

Market Sectors for Retrofit

For which market sectors is a fan replacement best suitable? In the branches listed here, larger HVAC systems with long operating times are usually used. The savings potential is therefore enormous. Furthermore, in sensitive applications, the risk of failure of the ventilation unit can be nearly eliminated by the redundancy of the ECFanGrid.

What is an ECFanGrid?

The ECFanGrid Retrofit System
An ECFanGrid consists of several EC fans operated in parallel in a kind of fan wall. The volume flow is multiplied proportionally to the number of fans, while the pressure conditions remain constant. The EC fans used are not only highly efficient, but as a perfectly matched unit (electronics, motor & impeller) they also enable simple plug & play solutions for almost any ventilation requirement.

In addition, several controllable fans can be adapted much better to the actual air performance required, which increases efficiency at every operating point.

The ECFanGrid Retrofit System is particularly suitable for replacing old, inefficient belt-driven fans in ventilation units. It does not matter which brand is in use. The Retrofit System is flexible and always suitable!

All components, from the fans to the switch cabinet and the adaptive sheet metal parts, come from our own production and are part of every ECFanGrid Retrofit System from Rosenberg.

Advantages of the
ECFanGrid Retrofit System

» Energy Savings

Obsolete fans are one of the main causes of excessive energy consumption in existing HVAC systems. In comparison, modern, energy-efficient fans easily achieve system efficiencies of 70 %. The more efficient components allow energy savings of up to 50 %.

» Easy installation

The ECFanGrid is ideal for retrofitting existing HVAC equipment, especially when a single large centrifugal fan is to be replaced. Due to its smaller component size, the ECFanGrid can be carried into the building and installed by one or two people through standard doors.

» Easy maintenance

In opposite to a conventional belt drive fan, which covers a relatively large floor area, the ECFanGrid is completely floor-free. This means that it is more effective to maintain hygiene within the air handling unit. No dust is released into the supply air as there is no more belt abrasion.

» Reliability

The ECFanGrid offers an absolute degree of reliability due to its "built-in" redundancy. In the unlikely event that a fan should fail, only this part of the airflow is lost. The loss of this airflow is then fully automatically compensated by increasing the speed of all other fans.

Advantages of the
ECFanGrid Retrofit System

» Energy Savings

Obsolete fans are one of the main causes of excessive energy consumption in existing HVAC systems. In comparison, modern, energy-efficient fans easily achieve system efficiencies of 70 %. The more efficient components allow electricity savings of up to 50 %.

» Easy installation

The ECFanGrid is ideal for retrofitting existing HVAC equipment, especially when a single large centrifugal fan is to be replaced. Due to its smaller component size, the ECFanGrid can be carried into the building and installed by one or two people through standard doors.

» Easy maintenance

In opposite to a conventional belt drive fan, which covers a relatively large floor area, the ECFanGrid is completely floor-free. This means that it is more effective to maintain hygiene within the air handling unit. No dust is released into the supply air as there is no more belt abrasion.

» Reliability

The ECFanGrid offers an absolute degree of reliability due to its "built-in" redundancy. In the unlikely event that a fan should fail, only this part of the airflow is lost. The loss of this airflow is then fully automatically compensated by increasing the speed of all other fans.

Advantage for all Project Partners

What is particularly important to you? This depends on your point of view. Our ECFanGrid Retrofit System was developed to meet the needs of all interested parties.

Energy saving and reliability is your top priority. We therefore offer you professional measurements which determine the actual energy consumption and show you the energy saving potential based on this. In addition, our systems are always designed redundantly.
Time is your most important factor. You need to find the optimal solution quickly. We therefore only need four details for complete offers including tender texts: Volume flow, pressure, height and width. You will receive an answer within a few hours.
Practicality is the most important thing for you. The system must be manageable. Therefore all our components can be carried by two persons. You can use existing stairs and lifts for the installation. You will receive all necessary material in a complete kit.
Maintenance, replacement and reliability are particularly important to you. Our fans are lubricated for life and directly driven (no more need to change belts). They can be delivered within a very short time and can be replaced in a few minutes. We provide the building control system (GLT) with all necessary signals.

Projects in Detail

Whether at the airport, in public buildings, office complexes, production halls or hotels, an ECFanGrid is used wherever older air handling units are in use for long periods of time. Here we show you a small selection of fan replacement projects already implemented.

Demonstration Video: Retrofit Project

The video shows the retrofit of an old belt drive fan to an energy-efficient ECFanGrid. The associated control cabinet, specially designed for redundancy, allows you to control an ECFanGrid like a single EC fan.

Demonstration Video: Installation

Installing an ECFanGrid Retrofit from Rosenberg is easier than you think. You will receive all necessary parts including assembly instructions. Of course we also offer you the installation by our service team.

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Information Material

Here we provide you with information material about ECFanGrid for download. If you need further references, please contact us via the contact form. We will then send them to you immediately by e-mail.

We would be pleased to realize your project

We will inform you free of charge and without obligation about the various possibilities and will definitely find a suitable and attractive solution for your fan replacement. Simply get in touch with us. We look forward to your inquiry!
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