{"id":21503,"date":"2025-07-08T09:30:54","date_gmt":"2025-07-08T07:30:54","guid":{"rendered":"https:\/\/mag.ebmpapst.com\/en\/?p=21503"},"modified":"2025-07-08T09:30:56","modified_gmt":"2025-07-08T07:30:56","slug":"radipac-for-filter-fan-units-in-cleanrooms","status":"publish","type":"post","link":"https:\/\/mag.ebmpapst.com\/en\/allgemein\/radipac-for-filter-fan-units-in-cleanrooms_21503\/","title":{"rendered":"RadiPac for filter-fan-units in clean\u00adrooms"},"content":{"rendered":"\n

Clean\u00adrooms have partic\u00adular require\u00adments when it comes to their venti\u00adlation systems. These require\u00adments include suffi\u00adcient air throughput and pres\u00adsure, precise control of temper\u00ada\u00adture and humidity, as well as a constant air purity achieved by filtering out even the smallest impu\u00adri\u00adties. Filter-fan-units (FFU) designed for ceiling instal\u00adla\u00adtion combine filter tech\u00adnology and state-of-the-art fans, enabling them to meet these require\u00adments to optimum effect.<\/p>\n\n\n\n

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0<\/span>m\u00b3\/h<\/h2>\n\n\n\n

deliv\u00adered airflow<\/h3>\n<\/div>\n\n\n\n
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0<\/span>%<\/h2>\n\n\n\n

achieved effi\u00adciency<\/h3>\n<\/div>\n\n\n\n
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0<\/span>\u20130<\/span>dB<\/h2>\n\n\n\n

lower noise level<\/h3>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n

As the \u201cheart\u201d of the FFU, fans play an impor\u00adtant role in clean\u00adroom tech\u00adnology. The latest gener\u00ada\u00adtion of RadiPac EC centrifugal fans from ebm-papst are there\u00adfore specially designed for this area of appli\u00adca\u00adtion. Not only do they supply the air volumes of up to 2,330 m\u00b3\/h that are stan\u00addard for the various FFU sizes, with suffi\u00adcient pres\u00adsure reserves for recir\u00adcu\u00adlated air oper\u00ada\u00adtion in clean\u00adrooms, but they also have effi\u00adciency levels of over 60% thanks to EC tech\u00adnology and the latest gener\u00ada\u00adtion of RadiPac impellers. Compared to the previous industry stan\u00addard, this means a 10% reduc\u00adtion in power consump\u00adtion. They are also 6 to 7 dB quieter than the commer\u00adcial stan\u00addard and so easily meet the strict noise protec\u00adtion require\u00adments for produc\u00adtion in clean\u00adrooms.<\/p>\n\n\n\n

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RadiPac are specially designed for FFU in clean\u00adrooms. The newly devel\u00adoped impeller with its five geomet\u00adri\u00adcally sophis\u00adti\u00adcated impeller blades dras\u00adti\u00adcally reduces flow losses. <\/mark><\/figcaption><\/figure>\n\n\n\n

(Image | ebm-papst)<\/p>\n<\/div><\/div>\n\n\n\n

Aero\u00addy\u00adnam\u00adi\u00adcally opti\u00admized impeller<\/h2>\n\n\n\n

The impeller with its five geomet\u00adri\u00adcally sophis\u00adti\u00adcated impeller blades and devel\u00adoped according to the latest aero\u00addy\u00adnamic find\u00adings, plays an impor\u00adtant role in this opti\u00admiza\u00adtion. This blade geom\u00adetry dras\u00adti\u00adcally reduces flow losses. The inlet ring was also designed for perfect inter\u00adac\u00adtion with the new impeller. The sophis\u00adti\u00adcated impeller geom\u00adetry not only reduces flow losses, but also noise gener\u00ada\u00adtion.<\/p>\n\n\n\n

EC motors: more powerful, more flex\u00adible and even more compact<\/h2>\n\n\n\n

The driving force behind the new RadiPac centrifugal fans are high-effi\u00adciency EC motors in the 170 to 500 W power range. Committed to system effi\u00adciency, the drive system consisting of motor and inte\u00adgrated power elec\u00adtronics is indi\u00advid\u00adu\u00adally adapted to each fan and opti\u00admized for the respec\u00adtive oper\u00adating range. The design and func\u00adtion\u00adality have also been updated to the latest gener\u00ada\u00adtion and a MODBUS inter\u00adface with DCI addressing has been added. An inte\u00adgrated reso\u00adnance sensor will also be avail\u00adable as an option in future. This reso\u00adnance sensor measures oscil\u00adla\u00adtions and vibra\u00adtions in real time and can there\u00adfore detect imbal\u00adance caused by dirt, for example, and then send a message before the fan is damaged.<\/p>\n\n\n\n

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The new impeller enables improve\u00adments in effi\u00adciency and air perfor\u00admance to be achieved (green: latest gener\u00ada\u00adtion RadiPac 3; orange: industry stan\u00addard) (Graphic | ebm-papst)<\/figcaption><\/figure>\n<\/div><\/div>\n\n\n\n

Fast commis\u00adsioning \u2013 MODBUS RTU with auto addressing<\/h2>\n\n\n\n

The air supply in a clean\u00adroom is not usually a stand\u00adalone solu\u00adtion. Instead, it is inte\u00adgrated into the entire automa\u00adtion process and its PLC and SCADA systems. Just like all other sensor and actu\u00adator infor\u00adma\u00adtion, the fans of the FFUs have to be inte\u00adgrated into the system network, and their status infor\u00adma\u00adtion must be provided to the controls and visu\u00adal\u00adiza\u00adtion systems. The initial commis\u00adsioning of a clean\u00adroom system requires a signif\u00adi\u00adcant output of time and money. Based on user reports, the time required to manu\u00adally connect an FFU data point is around five to ten minutes. The more fans there are in use, the more poten\u00adtial there is to make savings. An addi\u00adtional acces\u00adsory can help as a first step: Connector panels for bus and power distri\u00adb\u00adu\u00adtion, which can be used to connect up to 64 fans in series per channel. In addi\u00adtion, the new RadiPac fans are not only avail\u00adable with a digital ebmBus or MODBUS-RTU inter\u00adface, but also with auto addressing, which signif\u00adi\u00adcantly reduces commis\u00adsioning costs.<\/p>\n\n\n

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Connector panels for bus and power distri\u00adb\u00adu\u00adtion, \u2026<\/p><\/div>\n

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\u2026 which can be used to connect up to 64 fans in series per channel. (Images | ebm-papst)<\/p><\/div>\n<\/div>\n\n\n

A master\/slave-based bus always requires unique slave addresses. The fans are usually deliv\u00adered with an address that is preset in the factory, which is always the same (e.g. slave ID = 1). There\u00adfore, the addresses must be assigned a unique address during commis\u00adsioning for oper\u00ada\u00adtion in the network group, prefer\u00adably in the order of the MODBUS cabling. This time-consuming process is now auto\u00admated by what is known as DCI (daisy chain inter\u00adface) addressing, which signif\u00adi\u00adcantly reduces the time required for commis\u00adsioning.<\/p>\n\n\n\n

DCI addressing using MODBUS\/DCI as an example \u2013 How it works<\/h2>\n\n\n\n

A fan equipped with a DCI is addressed by a hard\u00adware signal (15 V\/24 VDC) via an \u201cInit pin\u201d on the RJ45 network plug, and thus temporarily assigned the slave address 247. Only the unit acti\u00advated in this manner \u201clistens\u201d to messages sent to this DCI address 247 and accepts a new MODBUS address sent from the master to this slave. Once this fan has been success\u00adfully re-addressed, its DCI relay is switched on and the \u201cInit pin\u201d (15 V \/ 24 VDC) is switched to the next fan module in the chain. This fan is now acti\u00advated via the hard\u00adware signal (\u201cInit pin\u201d) and the addressing continues as described above. If the cable diagram is known, the posi\u00adtion of the fan unit in the clean\u00adroom ceiling can be deter\u00admined via the cable routing. Manual assign\u00adment of the fan address to the instal\u00adla\u00adtion loca\u00adtion is no longer neces\u00adsary; the master controller takes over the complete addressing and local\u00adiza\u00adtion of the fans installed in the FFUs in the clean\u00adroom ceiling. There is a signif\u00adi\u00adcant reduc\u00adtion in the time and costs of commis\u00adsioning.<\/p>\n\n\n\n

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Fans with a MODBUS DCI (daisy chain inter\u00adface) can be addressed auto\u00admat\u00adi\u00adcally by the master via a hard\u00adware signal. This makes commis\u00adsioning much faster. (Image | ebm-papst)<\/figcaption><\/figure>\n<\/div><\/div>\n\n\n\n

The right acces\u00adsories are crucial<\/h2>\n\n\n\n

Good impellers are always sensi\u00adtive on the intake side. If faults occur here, they are often unable to fully exploit their advan\u00adtages. Reasons for this include ceiling designs that only allow lateral intake, and pre-filter boxes or mounted coolers that obstruct the inflow. This is where the right equip\u00adment, tailored to the impellers and incor\u00adpo\u00adrating many years of expe\u00adri\u00adence in venti\u00adlation appli\u00adca\u00adtions, can help. After all, with fans it is always impor\u00adtant to be aware of the system concept and the appli\u00adca\u00adtion-specific envi\u00adron\u00adment. One example is the closed Flow\u00adGrid air inlet grill. This acts as a kind of recti\u00adfier that reduces noise-gener\u00adating turbu\u00adlence in the inflow without changing the air perfor\u00admance or power consump\u00adtion. The fans are then even quieter, which bene\u00adfits venti\u00adlation appli\u00adca\u00adtions as well as many others. However, it can also be used as contact protec\u00adtion by clip\u00adping in an addi\u00adtional guard grill inlay.<\/p>\n\n\n\n

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The Flow\u00adGrid acts as a kind of recti\u00adfier that reduces noise-gener\u00adating turbu\u00adlence in the inflow without changing the air perfor\u00admance or power consump\u00adtion. However, it can also be used as contact protec\u00adtion by clip\u00adping in an addi\u00adtional guard grill inlay.<\/mark><\/figcaption><\/figure>\n\n\n\n

(Image | ebm-papst)<\/p>\n<\/div><\/div>\n\n\n\n

The fans are avail\u00adable both as a complete plug & play unit and as indi\u00advidual compo\u00adnents, allowing users to combine the impellers with their own solu\u00adtions. With an instal\u00adla\u00adtion depth of 190 to 275 mm and diam\u00ade\u00adters of 280, 355 and 400 mm, complete devices are very compact, meaning they can be easily accom\u00admo\u00addated even in tight instal\u00adla\u00adtion spaces and are there\u00adfore also suit\u00adable for retrofit appli\u00adca\u00adtions. They meet all the regu\u00adla\u00adtions required for clean\u00adroom use, thereby providing users with assur\u00adance for use world\u00adwide, both in Europe and North America as well as in the Asian market.<\/p>\n","protected":false},"excerpt":{"rendered":"

Clean\u00adrooms have partic\u00adular require\u00adments when it comes to their venti\u00adlation systems. These require\u00adments include suffi\u00adcient air throughput and pres\u00adsure, precise control of temper\u00ada\u00adture and humidity, as well as a constant air purity achieved by filtering out even the smallest impu\u00adri\u00adties. Filter-fan-units (FFU) designed for ceiling instal\u00adla\u00adtion combine filter tech\u00adnology and state-of-the-art fans, enabling them to [\u2026]<\/p>\n","protected":false},"author":43,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"wp_typography_post_enhancements_disabled":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-21503","post","type-post","status-publish","format-standard","hentry","category-allgemein"],"acf":[],"_links":{"self":[{"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/posts\/21503","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/users\/43"}],"replies":[{"embeddable":true,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/comments?post=21503"}],"version-history":[{"count":10,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/posts\/21503\/revisions"}],"predecessor-version":[{"id":21517,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/posts\/21503\/revisions\/21517"}],"wp:attachment":[{"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/media?parent=21503"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/categories?post=21503"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/tags?post=21503"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}