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Instruction Manual 

Multiblade Fan with Silencer Box 

Sirocco Fan with Silencer Box – Model CLF

II

-U / CLF

III

-U / CLF5-U 

 Warning 

Do not carry out operation, inspection or maintenance of the fan until you read this manual and understand 
the content. 

Keep this manual carefully at hand so that it can be consulted anytime when operating, inspecting or 
maintaining the fan. 

For contractors who carry out equipment work: 

Please be sure to deliver this manual to user(s) who will carry out operation, inspection and maintenance of 
the fan. 

Teral Inc. 

Summary of Contents for CLF5-U

Page 1: ...ntenance of the fan until you read this manual and understand the content Keep this manual carefully at hand so that it can be consulted anytime when operating inspecting or maintaining the fan For co...

Page 2: ...and breakage the costs of the repairs shall be for the account of the user 1 Failures and breakage attributable to equipment that was not delivered by TERAL 2 Failures and breakage occurred after the...

Page 3: ...cture and part names of the fan 2 1 2 2 Specifications and accessories of the fan 2 2 3 Placement and installation 3 1 Before using the fan 3 1 3 2 Precautions during transportation and storage 3 1 3...

Page 4: ...7 Troubleshooting 7 1 Troubleshooting 7 1 8 Special accessories 8 1 Damper 8 1 8 2 Expansion joint 8 1 8 3 Filter 8 1 III...

Page 5: ...ture 4 Do not install it anywhere with high humidity such as a bathroom 5 Do not install it in any places where toxic gases are produced from acids alkalis organic solvent paint or other substances or...

Page 6: ...ure to stop the fan and turn off the main power on the operation panel If you carry out the maintenance or inspection work with the power on you may suffer an electric shock and or get injured by unex...

Page 7: ...Model CLFII U RD Built in fan No Part name No Part name c Fan casing k Intake companion flange d Impeller l Discharge companion flange e Air intake 11 Inspection opening f Main shaft 12 Silencer box...

Page 8: ...ng mounting Totally enclosed type 0 4 kW and lower Type Drip proof type 0 75 kW and higher 50Hz 3 phases 200V Motor Phase voltage 60Hz 3 phases 200 220V Prime coating and interior coating Anti corrosi...

Page 9: ...hat you ordered have been delivered 3 2 Precautions during transportation and storage 3 2 1 Precautions for transportation Warning Do not get under the suspended fan The fan may fall onto you Ask a sp...

Page 10: ...lace where the fan can be easily and safely inspected and repaired Ensure that there is enough space for assembly disassembly repairs and other operations of the fan 7 If you install the fan indoors e...

Page 11: ...To make the fan earthquake resistant weld each foundation bolt to reinforcing bars of the foundation concrete 5 Adjust the position and height of the fan using the tapered liners The levelness of the...

Page 12: ...e hang bolts and their mounting condition must be strong enough to sustain the load 3 After installation install a locknut to each hang bolt to prevent them from loosening 4 To make the fan earthquake...

Page 13: ...stance between pulleys Then use a tension meter to give the standard deflection mm in the middle of the V belt Re tension the belt or adjust the tension so that the deflection load at that time become...

Page 14: ...tion to the fan 4 If the opening area just in front of the air intake of the silencer box is significantly reduced for example by blocking the area with an iron plate the air flow rate around the air...

Page 15: ...danger 3 The cable has been connected to the terminal in the motor terminal box and drawn out of the silencer box Standard connections are direct start for 7 5kW or smaller motors and Star Delta star...

Page 16: ...heck that all the connections on the foundation bolts fan accessories and pipe joints are securely tightened 3 Check that the dampers and valves can fully open and close and that they operate normally...

Page 17: ...ensure that the fan does not run at a rate where surging may occur 4 Gradually open the damper until the fan reaches the full load operation Keep it running under the condition for 1 to 3 hours and c...

Page 18: ...ong period of time apply appropriate anti corrosive agent to the areas prone to rust 2 Protect the motor and other electrical devices against moisture 3 Remove the V belt before storing the fan 4 Cove...

Page 19: ...s installed on the fan vibration of the fan itself becomes slightly stronger although the vibration is not transmitted to the foundation In such a case a vibration lower than the broken line is consid...

Page 20: ...uous irregular noise Any damage on the race surface of the inner or outer ring may generate a continuous noise If the noise is faint or insignificant the bearing may still be used after being refilled...

Page 21: ...filling quantity of pillow block Environment Bearing temperature C Refilling interval Bearing No Refilling quantity g Bearing No Refilling quantity g Bearing No Refilling quantity g Clean Max 50 C 1 t...

Page 22: ...er adhered to the impeller Correct the balance of the impeller Replace the impeller or the main shaft Replace the V belt pulley or correct the balance of the pulley Replace the main shaft Reassemble t...

Page 23: ...e face to face dimension of the expansion joint follow the external dimensions drawing Do not expand or compress the joint Do not use the expansion joint to correct the misalignment between the fan an...

Page 24: ...Head Office 230 Moriwake Miyuki cho Fukuyama city Hiroshima 720 0003 Japan Tel 81 84 955 1111 Fax 81 84 955 5777 www teral net 2016 06 E IMN 00377 000 T...

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