Kruger ADA Series General Instructions Manual

Centrifugal fan

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General Instructions
(Centrifugal Fan)
ADA-BDA-BDB-FDA-KAT
ASA-BSB-BSA-FSA
IGB016.E1/0902

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Summary of Contents for Kruger ADA Series

  • Page 1 General Instructions (Centrifugal Fan) ADA-BDA-BDB-FDA-KAT ASA-BSB-BSA-FSA IGB016.E1/0902...
  • 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 make of 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 ...
  • Page 6 GUIDELINES FOR CENTRIFUGAL FAN INSTALLATION Improper installation with inlet or discharge configurations may result in reduced performance. Restricted or unstable flow at the fan inlet can cause pre-rotation of incoming air or uneven loading of the fan wheel yielding large system loss and increase sound levels. Free discharge or turbulent flow in the discharge ductwork will also result in system effect losses.
  • Page 7 Installation Method – DIDW Centrifugal Fan Fig.1 - Floor Type Fig.2 – Ceiling Type Top View...
  • Page 8 Installation Method – SISW Centrifugal Fan Fig. 3 - Floor Type Fig. 4 - Ceiling Type Top View...
  • Page 9: V-Belt Drive Installation

    V-BELT DRIVE INSTALLATION  Remove the protective coating from the end of the fan shaft and assure that it is free of nicks and burrs.  Check fan and motor shafts for parallel and angular alignment.  Slide sheaves on shafts – do not drive sheaves on as this may result in bearing damage. ...
  • Page 10: 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 11 The lubricating interval may be determined from the following diagram. Caution: Do not over-lubricate. This is a major cause of bearing failure. Make sure dirt and contaminants are not introduced when adding grease. Scale a: Radical ball bearing Scale c: Spherical roller bearings Type of bearing Type of grease FYH Deep Groove Ball Bearing...
  • Page 12: Vibration Isolator Installation

    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. (The entire assembly must be levelled) ...
  • Page 13 · INDIA (NORTH) KOREA NEOMATE CO. LTD KRUGER VENTILATION INDUSTRIES (NORTH INDIA) PVT LTD 2-1010, Ace High Tech City B/D, 775 Gyeongin-ro, Plot No. - 191, Sector - 59, Ballabgarh, Faridabad - 121 004, Haryana, India Yeongdeungpo-gu, Seoul, Korea. Postal Code 07299 Tel.

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