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Summary of Contents for Kruger IJA
- Page 1 IGB048.E2/2007 General Instructions (Induced Jet Fan) IJA, IJB, IJC II...
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Page 2: Receiving, Handling And Storage
Kruger Axial (IJA, IJB) and Cased Centrifugal (IJC II) Induced Jet Fan is special design fan to achieve high impulse throw of discharging air. IJA & IJB fan consists of an attenuator at the suction and discharge side, pre-designed inlet & outlet guide vane. -
Page 3: Installation
3 INSTALLATION 1) Induced Jet fans are shipped mostly assembled, however final checking and adjustments are required prior to hanging the fans to the ceiling. 2) Induced Jet fans should be installed close to the ceiling but below the beam and free any obstruction at the inlet and discharge. - Page 4 Jet fans are installed with a single speed or 2 speeds motor. 3.3 Vibration Isolator Installation 1) Select proper isolator. (Spring Isolator can be selected from Kruger selection program or isolator catalogue) 2) Adjust deflection based on the selected isolator.
- Page 5 Spin impeller to see whether it rotates freely and is not grossly out of balance. Inspect impeller for correct rotation for the fan design. Make sure the inlet (and outlet for IJA & IJB only) protection nets are properly installed & fastened.
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Page 6: Troubleshooting
5 TROUBLE-SHOOTING 5.1 Fan is developing or emitting abnormal or excessive noise Problem Possible Cause Remedy 1) Lean-in cable not secure 1) Fasten the cable properly 2) Noisy motor bearings 2) Replace bearings 3) Single phasing a 3 phase motor 3) Check power supply Motor 4) Low voltage... - Page 7 Wrong motor speed i) Change motor ii) Wrong calibration of inverter ii) Adjust inverter calibration IJA & IJB Only: IJA & IJB Only: 5) Improper blade setting 5) Adjust to correct angle 1) Obstructions near fan outlet or...
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Page 8: Routine Maintenance
5.5 High power absorption Problem Possible Cause Remedy Impeller 1) Blade angle/wheel rotation not 1) Adjust blade angle/wheel set properly rotation 1) Faults in the motor windings 1) Replace motor Motor 2) Motor power supply voltage 2) Check with motor supplier lower than the value indicated on the identification plate 1) Calculated horsepower... - Page 9 Email: sales@krugerindia.com • • INDIA (NORTH) INDONESIA KRUGER VENTILATION INDUSTRIES (NORTH INDIA) PVT LTD P.T. KRUGER VENTILATION INDONESIA Plot No. - 191, Sector - 59, Ballabgarh, Faridabad - 121 004, Haryana, India JL. Teuku Umar No.20, Tel. +91-9958991660/9717449696 Karawaci - Tangerang 15115, Indonesia Fax.