Depending on the business and type of building, HVAC can account for over 40% of energy consumption. Your clients can reduce HVAC energy consumption and sustain optimal consumption levels by improving the control and management of ventilation, temperatures, and system usage.

You can help them meet today’s demand for energy efficiency, occupant comfort, and compliance with standards by installing Altivar variable speed drives on pumps and fans to adjust energy use to actual need.  Depending on the application and selected control scheme you can help reduce the amount of energy their HVAC system uses by up to 30%.

Example. “My restaurant’s exhaust hood is always running at full speed, even when my cooking equipment isn’t being used. I’d like to fi nd a way to reduce the amount of energy wasted and lower my utility bills.”

Solution: regulate kitchen exhaust hood speed according to temperature.

The solution consists in using variable speed drives (VSD) to adjust exhaust operation to the amount of activity in the kitchen.

Fan speed is controlled according to air temperature. A sensor inside the exhaust hood detects air temperature, and an Altivar 12 variable speed drive adjusts the exhaust fan motor speed.

The cooler the air, the slower the fan runs, down to a minimum ventilation level. The exhaust hood is automatically turned up or down to meet actual needs, resulting insubstantial savings.

An optical smoke sensor can be added to boost the system’s regulation capabilities. This configuration requires an additional control system.

For the user

> Energy savings of 20% to 50%, depending on use: maximum exhaust hood operation is usually limited to just a few hours a day

> Fast ROI, usually within 18 to 24 months

> Quieter operation

• Lowering fan speed by 20% reduces noise by 20%

• Reducing speed by half virtually eliminates noise

> Lower maintenance costs

For the supplier

– Simple and economical: the VSD picks up the signal directly from the temperature sensor
– Reduced maintenance: the VSD can be mounted right on the fan, eliminating maintenance intensive gearboxes
– Easy design and upgrades + Installation
– Complies with international standards
– Integrated EMC filter
– Simple, beltless system
– Easy installation thanks to plug-and play design

The Altivar 12

– Variable speed drive for small machines and applications with three phase 240 V  synchronous motor 0.18 to 0.75 kW, 120 V single-phase power supply 0.18 to 2.2 kW, 240 V single-phase power supply 0.18 to 4 kW, 240 V three-phase power supply

– Can be configured in its packaging

– Quick start option requiring no adjustment Intuitive navigation

– Compact design

– Category 1 EMC filter

– Local control on the front panel

– Modbus serial link

– Resistant to harsh operating environments

Altivar 12 and other Schneider/Telemechanique inverter drives available here from stock at discounted prices