Text for invitation to tender for EC medium pressure axial fans EC medium pressure axial fan Sizes 1120 to 1600 Direct-drive EC medium pressure axial fan with high-performance axial impeller with hub, mounted on a GreenTech EC external rotor motor with integrated control electronics. Double-flange housing made of galvanised sheet steel, flow-optimised nozzle shape on inlet side, corrosion protection as per DIN EN ISO 12944, class C5 M; transport loops for safe handling during shipping and installation. Impeller and hub made of die-cast aluminium, with flow-optimised Airfoil blade geometry, blade angle and number of blades specified at the factory to suit the required operating point; installation possible on inlet or pressure side; motorised impeller balanced in two planes (static and dynamic) as per DIN ISO 1940 to balance quality G 6.3. GreenTech EC external rotor motor surpasses efficiency class IE4, magnets without use of rare earths, maintenancefree ball bearings with long-term lubrication, theoretical nominal service life of at least 40,000 operating hours, installation with horizontal and vertical motor shaft; soft start, integrated current limitation, wide input voltage range 3phase 380-480 V, 50/60 Hz, fan suitable for use with all standard power supply systems with no effect on air performance. Compact electronics; no need to install shielded wiring; extremely low-noise commutation logic; 100% speed control, with PID controller; RS485/MODBUS RTU interface; pre-set operating parameters, no parametrisation work required. Terminal box made of aluminium with readily accessible connection area with spring terminals, environment-resistant cable glands. Any work required to prevent the transmission of structure-borne noise is to be performed by the customer. Fan satisfies the relevant EMC regulations and requirements with regard to circuit feedback; documentation and marking conform to the applicable EU directives. Reliable performance data, air performance measurements on inlet-side chamber test rig in accordance with ISO 5801 and DIN 24163, noise measurements in low-reflection acoustic test chamber as per DIN EN ISO 3745. Integrated protective devices: - Alarm relay with floating contacts (250 V AC/2 A, cos φ = 1) Locked-rotor protection Phase failure detection Motor soft start Mains undervoltage detection Excess temperature protection for electronics and motor Short circuit protection Optional: - Different and specific requirements on request Subject to change / As at 2015/04/01 ebm-papst Mulfingen GmbH & Co. KG Bachmühle 2 ·74673 Mulfingen ·Phone: +49 7938 81-0 ·Fax: +49 7938 81-110 ·www.ebmpapst.com ·[email protected] Text for invitation to tender for EC medium pressure axial fans Technical data: Fan types Air flow Stat. pressure increase Stat. overall efficiency Operating speed Motor type Type of control Motor efficiency class Total power consumption Specific fan power Nominal voltage range Mains frequency Nominal current Ingress protection Sound power level Sound pressure level (at 1 m) Perm. ambient temperature Fan mass qV p fs η es n P ed SFP UN f IN L W A(A, in) L p A(A, in) T m W3G ________ - ________ - _____ = ___________________________ = ___________________________ = ___________________________ = ___________________________ = EC motor = 0-100% speed control = IE4 = ___________________________ = ___________________________ = ___________________________ = 50 / 60 = ___________________________ = IP54 = _______ / L W A(A, out) = _______ = _______ / L p A(A, out) = _______ = ____________ to ____________ = ___________________________ m3/h Pa % min-1 kW kW/(m³/s) V Hz A dB(A) dB(A) °C kg Product photo EC axial fan – straight blades W3G… Refer to data sheet for dimensions and connections Subject to change / As at 2015/04/01 ebm-papst Mulfingen GmbH & Co. KG Bachmühle 2 ·74673 Mulfingen ·Phone: +49 7938 81-0 ·Fax: +49 7938 81-110 ·www.ebmpapst.com ·[email protected]