Indoor air handling units (AHUs) for offices, shopping malls, clinics, warehouses and other commercial and municipal facilities require a combination of high efficiency, good acoustics and long service life. They reliably provide clean air to people in the buildings without creating drafts or irritating noise.
Energy efficiency and acoustics play a particularly important role in the design of the centrifugal fan used for air handling systems. But they should also be dimensioned to be as resource-efficient as possible in terms of space requirements and the effort required for installation and maintenance. The main component of a fan for influencing product characteristics is the fan wheel.
General HVAC blower wheels from punker therefore combine pleasant acoustics, compact design, flexible application options and very high static efficiencies. In this way, we support you in complying with strict legal guidelines and standards (e.g. the ErP), especially with regard to energy consumption.
General HVAC Fan Wheels
The fan impellers of the punker General HVAC series have been specially developed for use in air handling units that have to meet the highest energy efficiency requirements, such as those specified by the Fan Efficiency Index (FEI). With their impeller geometry optimized for efficiency, General HVAC fan impellers cover a very wide operating range with maximum efficiency. This gives manufacturers of air conditioning units and plug fans for AHUs the opportunity to drastically reduce their number of variants and thus the costs and effort involved in supplier and warehouse management.
Benefits
Reduced costs over the entire product life cycle:
- Thanks to the delivery of balanced fan impellers with low system vibrations, no rebalancing is necessary.
- Lightweight aluminum design facilitates installation, extends maintenance intervals and thus increases the service life of the motor used.
- The wheel strength, which is tailored to the load requirements, increases reliability during operation and thus reduces replacement intervals.
- The acoustically optimized wheel geometry enables use in noise-sensitive environments without incurring additional costs for insulation.
Applications
- Air Handling Units (AHU)
- Compact air handling units
- Modular air handling units
- Plenum Fans / Plug fans
- Kitchen boxes
- Box fans
- Air Cleaners
Technical Data
| Sizes | 16 diameters, one width each |
| Diameters | 9″ to 39″ |
| Material of construction | aluminum, powder-coated steel |
| Joining method | welded |
| Blade geometry | backward-curved / airfoil |
| Inlet Cone | ED11 |
| Wheel-Motor-Mounting | Taper Lock-hub, optionally fixed hub |
Data Sheets
Fan Wheel Data Sheet:
punker General HVAC Fan Wheels
PDF, 114 KB
Inlet Cone Data Sheet:
ED11
PDF, 114 KB
Case Study
Citizen Industries is a leading manufacturer of air handling units (AHU), laboratory equipment and biotech equipment in India. In 2016, punker helped Citizen reduce the number of different fan wheels in its AHUs by 90% by switching to the General HVAC Line. The rationalization has saved our customers time and money while further increasing the energy efficiency of Citizen’s air handling units – which in turn helps end customers save on operating costs.
