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Table of Contents
Related Manuals for Kruger BNA
Summary of Contents for Kruger BNA
- Page 1 General Instructions (Plenum & Plug Fan) BNA-ANA- BPA-APA IGB030.E0/1203...
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Page 2: Receiving, Handling And Storage
This manual is to guide the users in the proper storage, installation, operation and maintenance procedures to ensure maximum equipment life and trouble-free operation. HANDLING AND MAINTENANCE SHOULD ALWAYS BE PERFORMED BY EXPERIENCED AND TRAINED PERSONNEL. RECEIVING, HANDLING AND STORAGE Rough handling during shipment and improper storage can cause damage that is not noticeable until the fan is in operation. -
Page 3: Troubleshooting
The fan may now be put into operation but during the first 8 hrs of running, it should be periodically observed and checked for excessive vibration and noise. Checks should be made on motor input current and motor & bearing temperature to ensure that they do not exceed manufacturer’s recommendation. After 8 hrs of operation, the fan should be shut down to check the following items :- All set screws and hold-down bolts Belt drive alignment... - Page 4 Fan is vibrating excessively Possible cause Remedy Impeller Impeller unbalanced due to deposits (dirt or grease) Clean impeller, rebalance the system Impeller unbalanced due to wear Replace impeller Drive Unbalanced pulleys Balance the pulley or the system ...
- Page 5 Fan does not start or operate Possible cause Remedy Electrical Supply Blown fuses Check fuses/circuit breakers Electricity turned off Check for switched off or disconnected Wrong voltage Check for correct power supply Failure of one or two phases Check for correct power supply ...
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Page 6: Side By Side
GUIDELINES FOR PLENUM AND PLUG FANS INSTALLATION Adjacent Walls The distance between the fan and walls or ceilings will affect the fan performance. The recommended distance between the fan wheel and any wall is a minimum of 0.5 wheel diameter. Multiple walls reduce the performance even more. -
Page 7: Belt Tension
Aligning sheaves Proper Offset Pigeon- Toed Angle with a straight edge BELT TENSION Proper belt tension is important for long belt life. Too much tension puts excessive loads on the belts and the bearings, reducing the lives of both components. Not enough tension allows belt slippage, which generates heat and drastically reduces the life of the belt. -
Page 8: Bearing Lubrication
Tensioning Forces Force required to deflect belt 16mm per metre of span Belt Section Small Pulley Kilogram Newton (N) Diamter (mm) force (Kgf) 56 - 95 13 - 20 1.3 - 2.0 100 - 140 20 - 25 2.0 - 2.5 80 - 132 25 - 35 2.5 - 3.6... - Page 9 Referring to manufacturers’ instructions, the amount of grease required for relubrication can be determined from Gp = 0.006 D B Where Gp = Grease quantity for periodic relubrication, g D = Bearing outside diameter, mm B = Bearing width, mm The relubricating interval may be determined from the following diagram.
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Page 10: Type Of Grease
SKF Carb Roller Bearing VIBRATION ISOLATOR INSTALLATION Choose proper isolator (Isolator can be selected from Kruger selection programme) Adjust deflection based on the selected isolator. Maintain the operating / free height at the same level through step 2. - Page 11 Tel. +65 68631191 – Fax +65 68631151 Email: mktg@krugerasia.com Email: mktg@krugerasia.com THAILAND MALAYSIA Kruger Ventilation Ind. (Thailand) Co. Ltd Kruvent Industries (M) Sdn Bhd 30/105 Moo 1 Sinsakorn Industrial Estate Lot 8, Jalan Perusahaan 2 Batu Caves Chetsadawithi Road, Khok Kham Mueng,...