Twin radial blower DRG 730

Transcription

1 1/7 Twin radial blower DRG 730 Content: 1 Part numbers 2 Safety advises 3 Usage 4 Design 5 Function 6 Technical data 7 Dimensions 8 Installation 9 Characteristic curve 10 Validation A U R O R A Konrad G. Schulz GmbH & Co. KG Tel.: / info@aurora-eos.com The information on this document and the copyrights are ownership of AURORA Konrad G. Schulz GmbH & Co. KG, Joachim Schulz Str. 4, D Mudau. Transmission or duplication of this document or the utilization of the contents are not allowed without the agreement of AURORA Konrad G. Schulz GmbH & Co. KG otherwise it is explicit allowed. Violation will be prosecuted. All rights of patents, industrial designs and trademarks are reserved. Please pay attention to ISO we reserve the right to make technical modifications - established: KH checked: CK approved: CK date/name date/name date/name a) KH b) KH c) KH d

2 2/7 1. Part numbers DRG V basic version DRG V 1-speed standard DRG V 2-speed standard DRG V 3-speed standard DRG V basic version DRG V 1-speed standard DRG V 2-speed standard DRG V 3-speed standard DRG V 4-speed standard (not available anymore) More versions are available, upon request. This technical Information is valid for all versions of the twin radial blower DRG Safety advises The blower is principle maintenance- and service-free. If there is maintenance work to do, make sure it is to be carried out only when the motor is not running. In order to avoid injuries, the blower is to be separated from the current circuit. Make sure that maintenance work is only carried out by specialised personnel. Do not reach into the blower and never stick objects into it. Please do not get into contact with the resistor on the blower, if it has not completely cooled down. Advice for installation and maintenance work: The rules for the prevention of accidents as well as other recognises technical and labour medical security regulations must be observed. 3. Usage The twin radial blowers DRG 730 can be delivered as a basic version, a 2-speed version, 2-speed-version, or 3-speed version. The twin radial blower DRG 730 is used for powerful usage in heaters, A/C units and ventilation systems. 4. Design 4.1 Parts The twin radial blower consists of the following parts - motor, radial wheels, inner rings = fan unit - basic plate, half bowl, outer rings, motor holder - resistor with micro-temperature-fuse MTF, clip (for multilevel-versions) - cable set (for multilevel-versions)

3 3/7 4.2 Material All housing parts and radial wheels are made out of plastic granulate polyamide PA6, 35% glass-fibrereinforcement. This material is listed to UL concerning burning behaviour, has a high temperature-resistant and because of the glass-fibre-reinforcement a high stability. 4.3 Blower speed control The different blower speed are achieved using a resistor. The resistor is a cemented ceramic resistor. The blower is protected from overload and a possible burning danger with a micro-temperature- fuse (MTF) installed at the resistor. Wiring diagram blower for a 3-speed version Wiring diagram blower for a 4-speed version CAUTION! For the third blower speed level a fuse of 15A at 24V and/or 30A for 12V has to be set by the customer. 4.4 Cable set The used wires are unscreened low tensions wires with thin-wall isolation for road vehicles. FLRY with colour marking of wires according to DIN IEC 304.

4 4/7 5. Function The air enters axial into the fan wheel, then the air will be radial turned round and leaves on the area vertical to the suction direction. Note: the blower carbon brush is a wearing part. If the carbon brushes are outworn, defective or contaminated, the motor will not run or not in a suitable way. At any service interval (depending on usage situation) the blower function has to be checked and the blower has to be changed, if necessary. The check of the blower in a disconnected state: optical check on - physical damage on the housing, the air grille or the fan wheel - contamination, dust, corrosion and other, that impair the function stiffness Then a function check is recommended abnormal noises uneven running fluctuating current consumption a decrease of air flow rate blower don t run under voltage any more If one or more of these impairments apply, the blower function is not given any more and the blower has to be replaced. During check pay attention to the necessary safety advises (chapter 1) 6. Technical data DRG730 nominal voltage 12V/24V test voltage 13V/26V air discharge flow 730 m 3 /h acceptable ambient temperature -40 C to +85 C range weight ca. 1,8 kg isolation class B according to EN speed 1 speed 2 speed 3 V air in m 3 /h Pel in W Lp in db(a) cable colours: BN minus WH slow 1.speed RD medium 2.speed BK fast 3.speed

5 7. Dimensions DRG 730: Technical Information 5/7 8. Installation hole pattern for DRG 730:

6 6/7 Installation instructions: For reliable operation of the DRG, the maximum fan bracing of 1 mm are not exceeded. Provision shall be made for a suitably flat mounting surface. to illustrate: 9. Characteristic curve

7 10. Conducted validation tests for DRG-family (motors) 7/7 Test method Standard basis AU standard Short description Validation power measuring T-0010 evaluation air characteristic curve characteristics OK Sound intensity level test DIN IEC T-0011 sound intensity level free-blowing OK dust test T-0003 function at dust influence 1000h operation OK vibration test according to DIN IEC T-0007 vibration test Hz / max 8g OK IVECO Hz/5g OK salt spray test DIN T-0016 corrosion resistance 72h OK electr. Function test start-up test over voltage 32V 60 min OK polarity test OK Insulation test/electric strength 500V OK T-0012 run behaviour with resistor OK balance quality DIN ISO 1940 blower balanced OK temperature test storage DIN IEC 68 storage 95h /2h OK temperature test operation DIN IEC 68 72h at 85 C OK temperature test operation DIN IEC h at 80 C thermal shock test IVECO cycles 2h at -30 C/2h at 80 C OK temperature cycling test DIN IEC cycles 8h between -40/+80 C OK climate test humidity constant DIN IEC C at 95% air humidity 21 days OK climate test humidity cyclical DIN IEC cycles of 24h at C / 95% humidity OK cold test DIN IEC 68 function + storage at -40 C/72h OK arctic test MAN LH function + storage at -46 C OK EMC tests 2006/28 EC directive emitted interference / interference resistance OK electrostatic sensitive device tests MAN LH electrostatic discharge OK lifetime test T-0008 Continuous operation, free-blowing at 13/26V max. load ca h laboratory conditions