ABOUT /
ECFanGrid is a multiple fan array ideal for upgrading existing inefficient air handlers (AHU) or a new application.
Equipped with our exclusive, energy-efficient, and easy-to-control EC Motor (ECM) technology, Rosenberg’s ECFanGrid is our approach to improve reliability, flexibility, and simplicity in existing or new HVAC systems. As a Property Owner, Manager, Contractor, or a Specifier, our modular concept provides a cost-effective HVAC solution.
Please choose your category below to find out more.
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contractor
SPECIFIER
PROPERTY OWNER
OEM

CONTRACTORS AND SERVICE PERSONNEL

Plug & Play
The ECFanGrid retrofit kit is a ‘plug-and-play’ solution that reduces the installation time and labour on your HVAC retrofit project. Rosenberg’s ECFanGrid kit includes fans, a grid layout, inlet cones and cone plates, mounting supports to create a structure, sheet metal fill plates and all of the assembly hardware. We offer a pre-assembled Control Cabinet complete with circuit breakers and an additional 24V power supply that saves time on-site.

No expensive building envelope renovation
An ECFanGrid is a modular Air Handling Unit (AHU) system consisting of several smaller fan units in the form of an array (or a "fan wall"), and designed to replace a single large fan. Components are small enough to move easily through existing doorways.
There is no need to rent expensive equipment like a crane.

Reduce downtime during HVAC retrofits
On some projects, it is possible to install an ECFanGrid while the single original fan is still operating.

We provide the drawings and documentation
you need to ensure that the installation and commissioning of the ECFanGrid is a well-managed process.

Easy access for service
When an ECFanGrid is installed in an AHU or HRV, interior space is gained inside the cabinet, allowing easy access for service personnel to do preventative maintenance or replacement of modules.

CONSULTING AND ENGINEERING FIRMS

Engineers & consultants
Energy Efficiency Upgrades. The ECFanGrid is an array of fans each capable of variable speeds. Use your building management systems or control automation equipment to vary the fan’s speed on demand.

Utility-Sponsored Funding Incentives Available
For energy audits and retrofit incentives are available for your customers, check our interactive map for your province to see where funding is available for engineering, modeling and consulting.

High Efficiency
EC Motors are the most efficient motors in the market for energy savings.

Space Saving
ECFanGrid is often more compact and lighter than a single large blower. The smaller footprint of the ECFanGrid can reduce the space requirement for the fans by up to 70%, as compared to a single large fan.

Plug & Play Kits
The ECFanGrid Kit is a pre-engineered comprehensive solution that provides all the parts needed for a quiuck and successful Air Handling Unit (AHU) retrofit project.

PROPERTY OWNERS

Building HVAC mechanical upgrades

No expensive building envelope renovation
An ECFanGrid is a modular AHU system, consisting of several smaller EC (or ECM) fan units in a form of an array, (or a "fan wall"), and designed to replace a large single fan. Components are small enough to easily move through existing doorways. No need to rent expensive equipment like a crane.

Reduce downtime during HVAC retrofits
On some projects, it is possible to install an ECFanGrid while the single original fan is still operating.

Increased system reliability
An ECFanGrid consisting of several smaller fans. If one fan in the grid fails the others will increase speed. The result is no downtime due to failures.

Utility-Sponsored Funding Incentives Available
For energy audits and retrofit incentives are available for your customers, check our interactive map for your province to see where funding is available for engineering, modeling and consulting.

Plug & Play
The ECFanGrid retrofit kit is a ‘plug and play’ solution that reduces the installation time and labour on your HVAC retrofit project. Rosenberg’s ECFanGrid kit includes the fans, a grid layout, inlet cones and cone plates, mounting supports to create a structure, sheet metal fill plates and all of the assembly hardware. We offer a pre-assembled Control Cabinet complete with circuit breakers and an additional 24V power supply that saves time on-site.

High Efficiency
EC Motors are the most efficient motors in the market for energy savings and energy-efficient buildings.
Up to 70% of the energy use for the buildings is attributed to the Heating, Ventilation, and Air Conditioning (HVAC). Energy consumed by the fans is typically the most critical aspect of the application. Replacing the existing belt-driven AC fans in favour of EC-Motor (ECM) fans throughout a building can save half of the HVAC expenses.
Thus, using energy-efficient EC Motor Technology in HVAC systems would be the most favourable direction to take when considering an energy-saving strategy for the entire Property.

Space Saving
ECFanGrid is often more compact and lighter than a single large blower. The smaller footprint of the ECFanGrid can reduce the space requirement for the fans by up to 70%, as compared to a single large fan.

OEM’s

Rosenberg’s ECFanGrid is an innovative design HVAC solution for manufacturers of air handling systems. See how this strategy will improve performance, reduce sound levels, eliminate downtime and enhance your customer’s satisfaction with your equipment.

FEATURES:

Energy Efficient
We use our variable speed EC fans built with our external rotor motors to lower energy consumption across the whole range of operation. We meet or exceed the European energy standard ErP 2015, the highest in the world. Our EC fans qualify for Canadian and Provincial energy efficiency program grants, loans and incentives.

Uniform Airflow
The ECFanGrid delivers uniform airflow. This improves efficiency by reducing turbulence across heat exchangers and through filters.

Easily Controlled
Our EC motors allow the ECFanGrid to be variable speed. Using control signals (0-10V or 4-20mA) from sensors or Building Management Systems, the ECFanGrid will automatically adjust to changing conditions. Using control sensors automate your system to adjust for differential pressure, constant airflow, temperature, carbon dioxide (CO2), fault detection, emergency alarms and more.

Cost-savings — Compact
The smaller footprint of the ECFanGrid can reduce the space requirement for the fans by up to 70%, as compared to a single large fan. Reduce your costs to produce your equipment, reduce the customer’s space requirement for your product and free up space.

Lighter
Compared to traditional systems that use single large fans our ECFanGrid is lighter. This means less mechanical load on support structures and may reduce construction costs as well as equipment installation costs.

Quieter
The total sound power of the ECFanGrid is the same as other systems but the frequency spectrum is higher. Higher frequencies require smaller attenuators, which minimizes the space needed for the air handling systems.

Redundant Specifications
Some customers require extra capacity in their critical system applications such as hospitals, data centers, schools or other public facilities, The system design strategy that uses multiple fans, will provide your system with fault tolerant operation and eliminate downtime. Systems can be designed to allow for service to filters or replacement of fans while the air handling system is running. Explore the cost-saving advantages and possibilities that multiple fan systems offer when customers ask for redundant fan systems.

OEM Designs and Customization
Rosenberg Fans Canada Ltd. has lots of experience, working with equipment manufacturers across Canada. Ask one of our technical sales people how our design and customization program will support your design team. We can help with product improvements or new equipment designs to incorporate the newest Rosenberg Fan technologies into your systems. Our 4 development centers and dedicated engineers are here to support our Canadian OEM customers.

Canadian Inventory and Customer Service
Rosenberg Fans Canada Ltd. has EC Fan inventory at our Mississauga, Ontario location. We support our OEM customers with dedicated inventory to minimize your delivery lead-time. Our EC Fans are CSA and UL listed and are available in sizes from 200 mm to 1,000 mm diameter, in different materials and voltages.

Visit Rosenberg Canada website.

FEATURES
Equipped with EC motors
The ECFanGrids assembled by Rosenberg use EC Motor fans (or ECM); which gives our grid unique advantages and benefits over other fan arrays using standard motors.
Check Rosenberg's EC Motor fan selection.
Watch a short EC Motor construction Video
Multiple fan array configurations and sizes
From two to more than twenty fans either with our ready to use Unobox or ECFanGrid retrofit kit, we can insert our ECFanGrid into any existing enclosure in combination with our multiple fan sizes. Our ECFanGrid can deliver the airflow and pressure that your application demands.
Compact, light, and flexible
HVAC Retrofitting and designing ventilation systems with the ECFanGrid will accommodate smaller footprints compared to systems using the standard belt-driven fans.
EC fan retrofit kit
The unique Rosenberg multi-fan array solution includes everything within our EC Fan Retrofit Kit required to make your next HVAC retrofitting project a big success using a single source.
Learn more about Rosenberg’s Retrofit Kit
Unobox: Stackable modular self-contained fans
The Unobox is an assembly consisting of a backward impeller EC fan mounted inside a sturdy box. It is Rosenberg’s approach to the modular construction of a grid as a standalone unit, or in a case when a previous casing no longer exists. Constructed out of an extruded aluminum frame with thermally and sound insulated galvanized steel panels. Powered by our energy-efficient and easy-to-control EC motors.
Simple and clean. Plug and Play.
Watch this Video to learn more about the Unobox.
Or download the Unobox brochure
BENEFITS
1.

Ease of control and versatility

Previous
Next benefit

Electronically commutated motors (EC motors or ECM) integrate the advantages of electronics to:

Drive – directing power electronically to different coils is what drives the motor; this makes the motor extremely efficient in the usage of energy.

Control – intelligent technology that allows the motor to be controlled with ease. Speed can be controlled by the use of a simple potentiometer (0-10 V) in (open loop) with a secondary setting (closed loop) to make speed dependent on any external condition (differential pressure, temperature, humidity, etc.)

Power – Rosenberg motors can handle 120 V single phase, 230-460 V three-phase and up to 600 V with our dedicated transformer for the Canadian market.

EC motor powered fans are efficient, intelligent, and versatile.

Redundancy and Reliability
Retrofitting HVAC with our ECFanGrid instead of a single fan provides reliability and redundancy as well as flexibility for any given ventilation system. If one fan fails the remaining units on the grid will pick up the lack of airflow. The fans will increase speed and hold at the desired setting until the fan is replaced. In critical applications where constant airflow is required, this feature offers a sound solution and much more reliability than a single fan, no downtime when failure or servicing.

Flexibility
With our multiple EC motor and plug fan sizes, the Rosenberg ECFanGrid or Unobox are able to adapt to any type of grid depending on the geometry of your actual installation. The combination of impeller size and motors will provide the desired output on flow and pressure.

Ease of handling and installation
Due to the compact size and weight of Rosenberg’s ECFanGrid retrofit kit and Unobox, the fans are easy to move, lift, and place into difficult and complicated spaces. This is a huge advantage over larger and bulkier single fan retrofit installations where demolition, lifting, and special equipment is required.

One-stop source for all components
Rosenberg ECFanGrid retrofit kit includes: our analysis on how to accommodate the grid; the mechanical performance calculations including electrical and power consumption; drawings and documentation; the required fans and inlet cones; adaptive structural supports for complete stability (top, bottom, side and between components); sheet metal fillers; complete wiring cabinet with protections and supplementary control power supply. Optional components include 600V power adapter module, grills, potentiometer and local controllers with transmission capabilities and more.
This is an all-in-one Rosenberg solution.

ENERGY SAVING
Energy saving technology.

Rosenberg's ECFanGrid is the most energy-efficient HVAC system available on today's market.

Our research team is continuously working on innovations. Our fans powered by motors with modern EC technology achieve efficiency ratings over 90%. They can save up to 50% in energy consumption versus traditional motor technology (in accordance to EC 60034-30) with an energy rating greater than IE4.

Electronically Commutated Motors (ECM) are not only efficient in their operation, but without the complications of a VFD (Variable-frequency drive) the embedded technology allows the motor speed to be fully controllable by different room variables, such as differential pressure, temperature, occupancy, time, etc.

This allows the overall system to have an extraordinary precise energy usage allocation.

Check Rosenberg's EC-Motor fan selection.

HVAC RETROFIT

Multiple provincial incentive programs for the installation of VFD’s delivered by local hydro companies are available for retrofitting commercial, industrial and residential HVAC systems. Rosenberg EC fans comply with these retrofit incentives in different ways:

  • Variable Speed Control Ready
  • Multiple Control Configurations with easy setup. (Peak demand timer, Differential Pressure, Temperature, etc.)
  • Less Power Consumption at the same operating point if compared with an AC motor. view comparison table

Our ECFanGrid is a multiple fan array that was born for HVAC Retrofit. Unlike "FanWall" systems by Nortek, who buy AC motors from someone else, we build and use our own EC motors. Rosenberg's EC motor (ECM) technology is more compact than AC motors, and our built-in speed controls are more energy-efficient than VFDs used with AC motors. Our speed controls are fully variable from stopped to full-speed and save more energy as the speed is reduced. VFDs only operate down to 50% of full-speed and become less energy-efficient as they reduce the AC motor’s speed. Our EC motors power our ECFanGrid to make it the most compact, energy-efficient and truly 100% variable speed multiple fan system available on the Market today.

Our goal is to provide our customers with all the tools needed for a successful HVAC retrofit project. With our Rosenberg Retrofit Kit we deliver all the elements to fit the ECFanGrid inside the plenum of any existing Air Handler (AHU).
Consider Rosenberg’s ECFanGrid for your next HVAC Retrofit project.

PARTICIPATING
PROVINCES
ROSENBERG'S
RETROFIT KIT
COMPARISON
TABLE
To find out more information on offered by Government of Canada energy rebates and incentives, choose a province
BRITISH COLUMBIA

Clean BC Incentive and Rebate Programs are designed to empower British Columbia citizens, businesses and consumers to make smarter, greener lifestyle choices. The decision to take climate action may come in the form of behavior changes (modes of transportation, home utility usage), consumer choices (energy- and fuel-efficient products, home heating systems), or efficiency and conservation decisions (home retrofits, business upgrades).

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ALBERTA

The Municipal Climate Change Action Centre (MCCAC) provides funding, technical assistance, and education to support Alberta municipalities in addressing climate change. The MCCAC is a partnership between the Government of Alberta, the Alberta Association of Municipal Districts and Counties (AAMDC), and the Alberta Urban Municipalities Association (AUMA).

The Taking Action to Manage Energy (TAME+) program provides tools and funding to help municipalities understand how energy is used in their buildings, identify key savings opportunities, and implement retrofit projects. For detailed information on eligibility requirements, available funding, and how to apply, please refer to the TAME+ Guidebook.

ONTARIO
Ontario

Save on Energy Retrofit incentives reduce project and operational costs for equipment upgrades – and open the door to new possibilities for your business.

Whether it’s a lighting upgrade, motor and heating installations or new control systems, incorporating energy efficiency into your operations delivers benefits that reach far beyond your energy bill.

Eligible measures under the program are those that provide sustainable, measurable and verifiable reductions in peak electricity demand and/or electricity consumption and below are some examples:

  • Lighting retrofits
  • Lighting controls
  • HVAC redesign
  • Chiller replacement
  • Variable speed drives
show more
QUEBEC

Buildings Program

The Buildings Program offers financial assistance to implement energy efficiency measures while carrying out projects in commercial or institutional buildings.

Contact your local service provider:

Saskatchewan

The Government of Saskatchewan with its goGreen program is committed to finding solutions to the environmental challenges facing our province, our country and our planet. Due to our reliance on coal, natural gas and other fossil fuels, Saskatchewan has a high greenhouse gas emissions rate. To sustain the province's natural resources and maintain a good quality of life for residents and generations to come, the provincial government is committed to finding a balance between growth and environmental protection - encouraging residents, communities and businesses to reduce their carbon footprint in their day-to-day lives.

Other useful links for saving on energy in Saskatchewan:

Saskatchewan
Manitoba

Manitoba Hydro with its Power Smart Program has saved a total of $150 million on the energy bills to its customers since the introduction. This Demand Side Management initiative not only saves money, it also allows them to export their renewable energy to other provinces and states that rely on fossil fuels.

Power Smart Program will help their customers save on bills, help meet the future energy needs of Manitobans, build Manitoba’s green economy, and help the environment.

In most businesses, heating, ventilation, and cooling typically account for 40 to 60 per cent of energy costs. A great way to reduce energy consumption and offset rising fuel costs is to replace old, inefficient equipment with energy efficient technologies.

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Newfoundland and Labrador

takeCHARGE can help identify and pay for energy efficiency improvements for your facilities through the Business Efficiency Program.

Get money back when you invest in energy-efficient upgrades in heating and cooling, refrigeration, lighting and controls, and more. You can also get money back when you reduce demand.

Energy-efficient upgrades will lower your electricity costs, contributing to your bottom line every month! These improvements can also help reduce other costs in areas like maintenance.

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New Brunswick

The Power NB's Retrofit Program provides financial incentives of up to $3,000 towards an evaluation to determine the potential for energy efficiency upgrades in a commercial building and a maximum of $75,000 towards the energy retrofitting project costs that result in measurable electricity savings.

In order to qualify for incentives, please ensure your Energy Management Service Provider has met, and will meet, the Energy Smart Program requirements.

Some examples of eligible buildings are:

  • Arenas and curling rinks
  • Retail buildings
  • Large multi-unit residential buildings footprint larger than 6,456 square feet or 600 square metres)
  • Hotels and motels
  • Restaurants
  • Recreational facilities
  • Office buildings
  • Grocery stores
  • others
Nova Scotia

Efficiency Nova Scotia with its Building Optimization Program gives your aging building the tune up it needs.

Imagine returning your older building to its original glory: running at peak performance, saving up to 15% on energy bills and making everyone inside more comfortable.

Their recommissioning specialists will work with you to ensure your building is working properly and set for optimal efficiency, including reviewing:

  • Original operating documents
  • Equipment
  • Temperature settings
  • Scheduling
show more
Saving on energy with Rosenberg Fan Energy-efficient Retrofit Kit

Rosenberg Fans Canada Ltd. is launching a unique concept that contemplates all the elements needed when thinking on retrofitting old coupled through belts or other inefficient types of fans to outdated non-premium motors.
We have the only solution that allows efficient external rotor EC motors fans (ECM) to be mounted directly to the plenum.
Download Brochure for more details about Rosenberg Retrofit Kit
Watch Assemblage Video

  1. 1. External Rotor Motor EC Fans (Backward inclined)
  2. 2. Inlet Plate
  3. 3. Inlet Cone with Measuring device
  4. 4. Mounting supports
  5. 5. Internal structural reinforcements to mount the fans
  6. 6. Wiring cabinet
  7. 7. Metal Sheet Fillers
  8. 8. Fastening bolts and screws


rosenberg ec fan grid with
external rotor ec motor
plenum fan coupled to nema
premium efficiency motor
Required Operating Point 12, 992 CFM @ 2.6 IWG 12, 992 CFM @ 2.6 IWG
model rosenberg 2x2-4f-gkhm-400-cib.6ff rosenberg dknb-b630
# of motors 4 1
noise level 91dBA 96dBA
nominal speed (rpm) 2600 1765
nominal power (hp) 18.77 15
operating point power (hp) 9.54 10.63
operating point speed (rpm) 2069 1800
operating point power consumption (hp) 7.12 kW 9.84 kW
current @ op (A) 10.8 13.8
maximum flow 16.163 CFM 12.992 CFM
speed control ready vfd is necessary
SHOWCASE
HVAC retrofit project at the Administrative Building in Ottawa.
Ottawa, ON
view map
Task

The project focused on upgrading two identical, outdated, and inefficient Air Handling Units with Rosenberg's state-of-the-art ECFanGrid.

The previous Air Handling Units had become obsolete, leading to suboptimal performance and increased energy consumption.

Recognizing the need for a more sustainable and cost-effective solution, the decision was made to install Rosenberg's ECFanGrid to modernize the building's ventilation system.

Result

The installation of Rosenberg's ECFanGrid brought substantial benefits to the Administrative Building in Ottawa. With fan redundancy ensuring uninterrupted operations and substantial energy savings, the retrofit project improved energy efficiency and indoor comfort.

The successful implementation showcases the building's commitment to sustainable solutions, setting an example for others to embrace greener practices and reduce operational costs.

 

Supply Fan 1: 50,000 cfm @ 5.25” SP

Supply Fan 2: 50,000 cfm @ 4.75” SP

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documentation
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SOFTWARE
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Soft: RoVent 10
File Format: .EXE
File Size: 38 MB
NEWS
Rosenberg's new I-Series impeller

Rosenberg's I-Series impeller and its complementary technologies mark a monumental advance in the field of impeller design and performance.

By delivering superior efficiency, reducing noise, and pushing the envelope in engineering, Rosenberg is not just raising the bar; it's setting a new standard in the HVAC industry, highlighting its commitment to innovation, sustainability, and excellence.

Download Specifications:Download I-Wheel specifications >

25.03.2024
read more
Rosenberg Fans Canada will be participating in CMPX 2024 in Toronto. Save the date: March 20-22, 2024.

Rosenberg Fans Canada will be participating in CMPX 2024 in Toronto from March 20-22, 2024. You are invited to join us at booth #303 to discover our latest innovations in ventilation technology, including our OEM industrial fans, ECFanGrid-our HVAC Retrofit Solution, and Airtecnics air curtains.

14.03.2024
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Join us at MCEE-2023 in Montreal and visit our booth, #1814, to discover our latest offerings.

We look forward to connecting with you and discussing how our products and solutions can support your business goals. Don't miss the chance to learn more about our latest offerings at Booth #1814.

14.03.2023
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Rosenberg Canada will participate in the Buildings Show-2022 in Toronto 15.11.2022

Rosenberg Canada will participate in the Buildings Show-2022 in Toronto 15.11.2022

18.11.2022
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CONTACT US
HOW TO FIND US:

ROSENBERG FANS CANADA LTD. 1210 Mid-Way Blvd, Unit 20
Mississauga, ON
L5T 2B8
Canada

Tel: (866) 565-1038 (Toll-free)
Tel: (905) 565-1038 (Head office)
Tel: (514) 592-7462 (QC, NS, NB, NF)
Tel: (905) 565-1038 (SK, AB, BC)
Fax: (905) 565-0161
www: rosenbergcanada.com

REQUEST FREE ECFANGRID WEBINAR
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OUR DISTRIBUTORS

British Columbia

Ambient Dynamics
#171-4300 N.Fraser Way
Burnaby, BC, V5J 5J8
(604) 900-9824
ambientdynamics.ca

________________________________

Alberta

Exel Systems Inc.
10550 110 St.
Edmonton, AB, T5H 3C5
(780) 466-6268
exelsystems.ca

________________________________

Saskatchewan

Cypress Sales Partnership
1145 8th Avenue
Regina, SK, S4R 1E1
(306) 757-5656, Ext 114
cypresssales.com

________________________________

Ontario (Except Ottawa)

Kilmer Environmental
208 Britannia Rd E #3
Mississauga, ON, L4Z 1S6
(905) 890-8908
kilmerenv.com

________________________________

Ontario, Ottawa

O’Dell Associates
(formerly Walmar Ventilation)
24 Gurdwara Road
Nepean, ON, K2E 8B5
(613) 366-2017
odellassoc.com