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Teral CTF3-HOH Instruction Manual

Centrifugal fan
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Create future with water and air
Centrifugal Fan
Turbo Fan
Model CTF3-HOH
Instruction Manual
Do not operate, maintain or inspect this device until you have read and
understood this manual.
Keep this manual in a safe place where it can be referred to at any time.
Ensure that copies of this manual are supplied to the all those who
operate, maintain or inspect this device.
TERAL INC.

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  • Page 1 Create future with water and air Centrifugal Fan Turbo Fan Model CTF3-HOH Instruction Manual Do not operate, maintain or inspect this device until you have read and understood this manual. Keep this manual in a safe place where it can be referred to at any time.
  • Page 2 Limit of Liability 1. Warranty period is for period of 18 months after date of the bill of lading or 12 months after installation whichever earlier. 2. During warranty period, equipment sold is warranted to the Buyer to be free from defective material and workmanship.

  • Page 3: Table Of Contents

    Purpose of this Manual The purpose of this manual is to provide the detailed information that the user needs to know in order to correctly operate, service and inspect the Centrifugal Fans. This manual is intended for persons experienced in the operation of Centrifugal Fan, or for persons who have received instruction from such experienced persons.
  • Page 4 4. Operating preparations 4.1 Confirmation items before test run 4.1.1 Electrical system confirmation 4.1.2 Confirmations of fan 5. Operation 5.1 Start-up precautions 5.2 Operating precautions 5.3 Precautions for stopping 5.4 Precautions during down period 6. Maintenance and inspections 6.1 Daily inspections 6.2 Periodical inspections 7.

  • Page 5: Safety

    1. Safety 1.1 Warnings The warnings used in this manual are graded into 4 types, according to the degree of danger (or seriousness of potential accident) that they signify. DANGER indicates the highest degree of danger, followed by WARNING and CAUTION, in that order.

  • Page 6: Operating Instructions

    When working under tuning on the power, electrical shock may result. Also, injuries could be caused by the fan being operated during work. (4) Consult TERAL’s agent or service companies before shifting, repairing, or modifying this unit.

  • Page 7: Location Of The Warning Label

    1.3 Location of the warning label The warning label is located in the position shown in the figure below. If this label becomes dirty and difficult to read, or if it starts to peel, etc., replace it with a new one. Nameplate...

  • Page 8: Fan Structure And Overview

    2. Fan structure and overview 2.1 Structure and component names Number Part Name Casing Impeller Air Intake Motor Stand Motor Intake Flange...

  • Page 9: Fan Specifications And Accessories

    2.2 Fan specifications and accessories Customers who have purchased the standard unit, please refer to the standard specifications chart. For those customers who have a unit which has been modified or custom made, please refer to the outside dimension diagram or specifications. (1) Standard specifications and Special specifications Clean air Usable air...

  • Page 10: Delivery And Installation

    3. Delivery and installation 3.1 Before using the fan When the fan arrives, please check the following. Contact the agent should any problems arise. Refer to the motor instruction manual for any questions regarding the motor. Impeller handling of this unit may lead to accidents or damage. (1) Confirm items on the nameplate for that the unit is as your ordered.

  • Page 11: Storage Precaution

    3.2.2 Storage precautions (1) Protect the unit from rust while it is being stored before installation or assembly. Cover the bearing se ction with a plastic sheet to protect it from rain water and dust. (2) Store indoor type motors and other indoor electric machinery in indoors. Even for outdoor use materials, protect cable opening from wet.

  • Page 12: Wiring Precautions

    3.4 Wiring precautions When wiring, use only high quality wiring equipment. Wire the unit safety, and in accordance with local standards and regulations. Only qualified electricians or other authorized personnel should wire the unit. Wiring by unqualified personnel is not only illegal, but also extremely dangerous. (1) Instal l a circuit breaker and an overload protection device at the fan’s power source.

  • Page 13: Operating Preparations

    4. Operating preparations 4.1 Confirmation items before test run 4.1.1 Electrical system confirmation (1) Confirm that the unit is correctly wi red. (2) Confirm that all terminals are se cured. (3) Confirm that the unit is correctly ground (4) Confirm that the overload protection de vice setting are in accordance with the motor’s specified current.

  • Page 14: Operation

    5. Operation 5.1 Start-up precautions (1) Close the dam per and using the power switch, turn the unit on and off 1 or 2 times to confirm that the un it is operating smoothly without any unusual sounds or vibrations. At this time, also check the rotation direction of the fan.

  • Page 15: Precautions During Down Period

    5.4 Precautions during down period (1) If the unit will not be used for extended period, cover areas which easily rust with an anticorrosive chemical. (2) Protect the motor and other electrical units from moisture. After long periods of inac tivity, inspect all parts before beginning operation.

  • Page 16: Maintenance And Inspections

    6. Maintenance and inspections 6.1 Daily inspections (1) Inspect the unit’s vibration and sound levels an d electrical current for any abnormalities. Because devia tions from the normal may be a sign of oncoming trouble, take appropriate countermeasures as soon as possible. Keeping logbook is very useful and recommended means of determining a trou ble.

  • Page 17: Periodical Inspections

    Normal Bearing Operating Noises Type of noise Normal noise Swash sound. Steady sound and no sudden changes. Lace noise This is a sound that a ball rolls on la e surface. Clattering sound. When a load is pla ed on the radial direction (this is normal case), Roller dropping a load is placed upon and removed from each ball one by one.

  • Page 18: Troubleshooting

    7. Troubleshooting 7.1 Troubleshooting It should be noted that there may be different causes and countermeasures for the same problem. Furthermore, the trouble may be a result of many confined problems. If the problem and countermeasures cannot be determined using the table b elow, stop operation and cannot a professional or the manufacture’s service division.

  • Page 19: Motor Bearing Replacement Procedure

    8. Motor bearing replacement procedure (CTF3-No.3 6-HOH-S) 1. Necessary tools (1) Spanner (M10 and M12) (2) Pulley remover (3) Impeller remove r (Special tool) . Disassembly procedure Table 1 Part list Part name Impeller Impeller hub Impeller washer Impeller bolt Impeller key Inlet Motor plate...
  • Page 20 Fig. 2 Removing the impeller Table 2 Clearance table (Standard) unit:mm Fig. 3 Impeller remover 7) Remove the motor from the motor plate. 8) Remove the motor fan cover. 9) Remove the motor fan. 10) Remove the motor brack 11) Remove the shaft, bearings, and rotor from frame.
  • Page 22 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‑00374‑000‑T...

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