RadiPac at a glance Electronics with connection area From impeller to motor system Product search for centrifugal fans RadiPac RadiPac stands for … Realistic performance specifications, as the performance data of the entire fan is continuously measured by means of the components: high-performance impeller, GreenTech EC motor and control electronics.Effective logistics, as a single RadiPac part number includes all components required for your ventilation demands – in the fashion of one-stop shopping.Simple commissioning, as all features necessary for operation are already installed and adapted to one another. Together, the electronics and motor form one unit – this doesn't just save space, but also ensures easy installation: in this respect, an integrated electronics system for commutation and control replaces an external frequency converter. What’s more, as the motor and electronics in the motor system are already perfectly matched to one another, additional electronic filters and shielded cables are unnecessary, for example an additional motor protecting switch.

To sum up: there is no need for any costly component matching on commissioning or for earthing and screening work. Plug & Play really is that simple. The high-performance impeller is mounted directly on the rotor of the external rotor motor. This saves space and allows the entire rotating unit to be balanced at the same time. "The result is what matters" – this also applies to efficiency. After all, it is not just the efficiency of individual components which is decisive, but rather the result of their interaction. This is where RadiPac shines with its impressive statistics. The impeller, motor and electronics system are all optimally adjusted to one another, leading to an overall efficiency of well above 60 %. A significant contribution to this efficiency is made by the external rotor design GreenTech EC motor.This is a mains-powered, permanently energised synchronous motor with electronic commutation (also called BLDC). Its efficiency is significantly higher than the efficiency class IE4, and it achieves this without the use of supply-critical rare-earth magnets.

On account of their design, other permanent magnet motors of the internal rotor type that offer comparable efficiency require rare-earth magnets. This means that they are less compact and more difficult to assemble and commission due to the necessary external control electronics. Aerodynamically optimised blade channelIntegrated rotation diffuserInlet nozzle adjusted to impeller Angular trailing edge for optimised flow controlIntegrated rotation diffuserInlet nozzle adjusted to impeller Dynamic balancing of the impeller rotor unit minimises the occurrence of structure-borne noise and reduces bearing load Suitable for long-term high circumferential speedsCorrosion-resistant aluminiumAirfoil blade The impeller is mounted directly onto the motor rotor Low copper and iron lossNo slip loss thanks to synchronous runningNo hysteresis loss in the rotor due to use of permanent magnets Optimised commutation permits partial-load operation up to 1:10 with maintenance of high efficiency

Commutation and stator design permit low-noise magnetisation of the field systemHigh, acoustically imperceptible pulse frequency Insulated bearing system to avoid bearing currents Infinitely variable speed settingsControl signal 0 –10 V DC and MODBUS Wide voltage ranges for worldwide useSuitable for 50 and 60 Hz power linesdiy ac unit installation Integrated anti-lock and excess temperature protectionEnvironment-resistant cable glandsair conditioner unit on roof Central terminal area for power supply, alarm relay, control and communicationSecure separation of terminal area and electronicsHigh-quality terminal clampsNo adjustment effort requiredhow to size home air conditioning unit The better the interaction works, the more impressive the result.

Individual RadiPac components are precisely adjusted to one another, which produces an outstanding result: the highest possible system efficiency. The basis for this is a combination of highly developed components and innovative technology.In a class of their own: the new RadiPac models.RadiPac EC centrifugal fans score well with their excellent characteristics – from high efficiency to easy handling and low space requirements. And in doing so, the product range completely covers the air performance range depicted below. Low-pressure centrifugal fans with a rigid, hybrid design. Compact, efficient, easily upgraded. Centrifugal fans with forward curved blades. HVAC System efficiency depends on balancing – the air-handler is a fundamental component of forced-air ventilation and if it is designed wrong, does not meet specifications, or is tuned incorrectly, it can cost extra to operate. Recording heat energy, air temperatures and ambient conditions reveals deficiencies in construction and operation.  

Balancing HVAC systems requires the right tools in order to be effective. Chasing problems without having data can lead to frustration for all involved. Designs need to be verified, sub-systems proven to work and overall performance documented. Often shortcuts are taken to expedite the job, but instead end up jeopardizing the successful outcome. Using a Temperature Data Logger to monitor the heat source, fresh air, return air, mixed air and ambient space, shows whether the system is working to specification. A portable, 10-year, self-powered data logger is versatile as it can be deployed easily, without requiring an external power source. Air handler performance is recorded 24/7/365, regardless of system complexity.Demonstrating how air handling units perform to all job functions – technicians, management, professionals and owner representatives. It is rare to have a complex system work to specification when newly installed, let alone fully functional during initial operation. The best way to tell if a system is working to spec, is to break it down into smaller measurable units – the air handler unit being one of them.