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Teral CLFII-U Instruction Manual

Multiblade fan with silencer box
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Instruction Manual
Multiblade Fan with Silencer Box
II
III
Sirocco Fan with Silencer Box – Model CLF
-U / CLF
-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.

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Summary of Contents for Teral CLFII-U

  • Page 1 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.

  • Page 2: Limited Warranties

    (5) Failures and breakage occurred when parts other than those designated by TERAL are used TERAL shall not be liable for the damage caused by incorrect or reckless use of the fan. Cost and expenses incurred for sending engineer(s) in such a case shall be borne by the user.

  • Page 3: Table Of Contents

    Purpose of this manual The purpose of this manual is to provide the user with detailed information necessary to properly operate, maintain and inspect the fan. This manual contains the following information and is intended for persons experienced in the operation of fans, or for those who have been trained by such experienced persons.
  • Page 4 Troubleshooting Troubleshooting ........................7-1 Special accessories Damper ..........................8-1 Expansion joint........................8-1 Filter ............................. 8-1...

  • Page 5: Safety Precautions

    Safety precautions Types and meanings of warning terms This instruction manual divides precautions into the following four categories according to the level of hazards (or the severity of the accident). Be sure to understand the meanings of the following terms and comply with the content (instructions) of the instruction manual.

  • Page 6: Precautions For Maintenance And Inspection

    If you carry out the maintenance or inspection work with the power on, you may suffer an electric shock and/or get injured by unexpected activation of the fan during the work. (4) Consult Teral, Inc., or a service company before moving, repairing, or modifying the fan. Location of the warning labels The figure below shows the locations to which each warning label should be affixed.

  • Page 7: Configuration And Overview Of The Fan

    Configuration and overview of the fan Structure and part names of the fan Model CLFIII-U-RS and CLF5-U-RS Built-in fan (No. 3 and later) Model CLFII-U-RD Built-in fan Part name Part name Intake companion flange Fan casing Discharge companion flange Impeller...

  • Page 8: Specifications And Accessories Of The Fan

    Specifications and accessories of the fan If you purchased a standard product, refer to the standard specifications in the following table. For a custom-made product with special specifications, refer to the specifications including the external dimensions drawing. Caution Do not use this product under any conditions other than those provided in the specifications.

  • Page 9: Placement And Installation

    Placement and installation Before using the fan When you receive the fan, check the following points first. If there are any problems, contact the sales agent you purchased the product from. Handle the motor according to the instruction manual of the motor. Incorrect handling may result in an accident or failure.

  • Page 10: Precautions For Storage

    Precautions for storage 3.2.2 (1) Protect the unit so that rust does not form during storage before installation or assembly. In particular, take measures to protect the silencer box against the entry of rainwater and dust, for example by covering them with a vinyl sheet. (2) Protect the motor connecting cables, electric components such as motors for indoor use, and other parts against moisture.

  • Page 11: Installation

    Installation 3.5.1 Floor-mounting type Carry out the following steps to install the fan using the foundation bolts (“boxed-out” method). (Select appropriate steps according to each case, for example where foundation bolts are set in place before installation.) (1) Clean the surface of the foundation concrete, and check the levelness. Chipping may be needed in some cases.

  • Page 12: Ceiling-Mounting Type

    Ceiling-mounting type 3.5.2 (1) Horizontally install the silencer box base onto the hang bolts mounted in the ceiling. Ensure that the load is evenly distributed among all the bolts. (2) The 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.

  • Page 13: Alignment

    Alignment The fan is aligned at the factory before shipping, but should be realigned after installation. Warning To carry out this alignment work, the inspection door of the silencer box must be opened. However, be sure to close the door before starting the fan.

  • Page 14: Precautions For Connecting The Ducts

    Precautions for connecting the ducts Caution Ensure to prevent any load of the ducts from acting on the fan. Failure to observe this may cause a failure, damage, and/or vibration. (1) In order to prevent transmission of vibration and noise to the outside, connect the fan’s flange and the duct using an expansion joint.

  • Page 15: Precautions For Wiring Work

    Precautions for wiring work Warning Use high-quality wiring equipment and devices, and carry out wiring work safely and securely according to the technical standards for electrical facilities, as well as the indoor wiring regulations. Only qualified personnel such as licensed electrical engineers are allowed to carry out electrical wiring work.

  • Page 16: Preparation For Operation

    Preparation for operation Points to be checked before test running Checking the electrical system 4.1.1 (1) Check that the fan is correctly wired. (2) Check that the terminals are securely connected. (3) Check that the equipment is securely grounded. (4) Check that the settings of the overload protection device match the rated current value of the motor being used.

  • Page 17: Operation

    Operation Precautions when starting the fan Warning Be sure to close the inspection door of the silencer box before operating the fan. (1) Close the damper and turn the unit ON and OFF once or twice to confirm that the unit is operating normally without any unusual noise or vibrations.

  • Page 18: Precautions When Stopping The Fan

    Precautions when stopping the fan (1) To stop the fan, gradually close the damper to the full and then turn OFF the power switch. Precautions when stopping the use Warning When you leave the fan unused for a long period of time, be sure to turn off the main power.

  • Page 19: Maintenance And Inspection

    Maintenance and inspection Daily inspection (1) Check the vibration, noise, current value, etc. of the fan. If there is any unusual condition, it may be a sign of failure; therefore, take the appropriate measures as soon as possible. For this purpose, it is recommended to keep an operation log. Warning The main shaft, V-belt pulley, and V-belt are rotating during operation.

  • Page 20: Periodic Inspection

    Normal noise produced at bearings Type of noise Normal noise It is a continuous noise without any sudden change. This noise is Race noise generated when a ball rolls on the race surface. It is a cyclic noise. When load applies in the radial direction (which is mostly the case), a ball is restricted by the load applied, and then released Roller dropping noise...

  • Page 21: Refilling Bearings With Grease Or Replacing Bearings

    Refilling bearings with grease or replacing bearings 6.2.1 (1) If your fan is fitted with the pillow block, you can use the fan without lubrication. For longer use, however, it is recommended to refill grease during periodic inspection. (2) The following tables show the intervals and quantities of refilling grease. Be careful not to overfill.
  • Page 22 Troubleshooting Troubleshooting Even if the same failure occurs, the cause and action may be different. In addition, there may be two or more causes. If the cause and action cannot be determined using the following table, stop the operation immediately and contact a specialist company or the service center specified by the manufacturer.
  • Page 23 Special accessories Damper (1) Refer to the external dimensions drawing (supplied separately), and install the dampers in place paying attention to the direction of the air flow. (2) Open and close the damper to check that the vane does not come into contact with the casing or ducts.
  • 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...

This manual is also suitable for:

Clfiii-uClf5-u

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