Design and application
- Radial fan without casing, single suction PLUG type with backward curved blades.
- Impeller made of polymer construction material with 20% glass fibre content.
- Direct drive - the impeller is mounted directly on the motor shaft.
- Fan section contains one or more fan groups to ensure optimal operating parameters.
- The fan group is mounted on a frame separated from the unit casing by rubber anti-vibration mountings.
- TEFC (Totally Enclosed Fan Cooled) motors.
- IEC standard motors.
- Frequency converter - standard element of the fan unit.
- The fan group is mounted on a frame mounted on the fan's diaphragm.
- EC motors are PM (Permanent Magnet) motors, which differ from traditional AC asynchronous motors by higher efficiency values.
- The EC motor (electronically commutated) is a motor in which the mechanical commutator has been replaced by an electronic module for switching the motor windings.
- The speed is changed by changing the switching frequency of the windings (the speed of the stator magnetic field).
- Electric motors used by VTS use permanent magnets with a high level of induction, which provides a significant torque at a relatively small size and determines the energy efficiency class IE4.
Features
- Low and medium pressure ventilation and air conditioning systems with full pressure up to 2000 Pa.
- Maximum ambient temperature: 60oC.
- Available energy efficiency classes: IE2, IE3.
- Rated voltage: 3x230V AC, 3x400V AC.
- 2x and 4x pole.
- Insulation class of motor windings: F (operation with frequency converter).
- Duration of operation of bearings: L10 = 20000h / L50 = 100000h.
- Protection class: IP55.
- Ambient temperature: 60°C.
- Available energy efficiency class: IE4.
- Nominal voltage: over 0.75kW EC motors - 3x400V AC.
- Nominal voltage: 0.75kW or less - 1x230V AC.
- Motor windings insulation class: F.
- Protection degree: IP54.
- Max. ambient temperature: 55oC.
- Service life: - 70,000 hours at 70% of maximum load at temperatures up to 35oC,- 30,000 hours at 100% of maximum load at temperatures up to 55oC
