Table of Contents
Advertisement
Quick Links
Instruction Manual
Centrifugal Fan
Turbofan Type
Plate fan Type
Warning
Do not carry out operation, inspection or maintenance of the fan until you read this manual and
understand the contents.
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.
CTFII / CTF3
CTF-B / CTF-BII
CTF-A / CTF-HA
CPF / CPFII
CPF-B / CPF-BII
Advertisement
Table of Contents
Related Manuals for Teral CTFII
Summary of Contents for Teral CTFII
- Page 1 Instruction Manual Centrifugal Fan Turbofan Type CTFII / CTF3 CTF-B / CTF-BII CTF-A / CTF-HA Plate fan Type CPF / CPFII CPF-B / CPF-BII Warning Do not carry out operation, inspection or maintenance of the fan until you read this manual and understand the contents.
- Page 2 (5) Failures and breakage when parts other than those designated by Teral Inc. are used Teral Inc. shall not be liable for any damage caused by incorrect or reckless use of the fan. In such a case, any and all costs and expenses incurred for sending engineer(s) 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 Dampers ································································································································· 8-1 Expansion joints ······················································································································ 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 unexpected activation of the fan may pose a danger of injury. (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 Construction and name of each part by transmission method (1) OB Type Part name Fan casing Impeller Air intake Main shaft Bearing V-belt pulley Belt guard Common base Suction flange Discharge flange Vibration insulating liner (2) MOB Type Vibration insulating base Shaft coupling... -
Page 8: Specifications And Accessories Of The Fan
Specifications and accessories of the fan If you purchased a standard unit, refer to the standard specifications in the following table. For custom-made units according to special specifications, refer to such specifications including the external dimensions drawing. Caution Do not use this unit 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 delivery of 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
3.2.2. Precautions for storage (1) Take protective measures for the unit against rust during storage until it is installed and assembled. In particular, take measures to prevent the bearings from rain water and dust, such as covering them with a vinyl sheet. (2) Store indoor-type motors and other electrical devices indoors. -
Page 11: Foundation
Foundation (1) The foundation must be strong enough to support the weight and the load and vibration produced by the fan during operation. (2) The foundation concrete should be constructed such that it keeps its levelness and is not affected by ground subsidence. Reinforce the ground by piling if it is soft or weak. (3) The weight of the foundation must be two to four times the total weight of the fan including the motor. - Page 12 (6) If the casing is separated from the bearing and the base, set the height and the position in consideration of the clearance between the rotating body and the Casing casing. Adjust the clearance between the impeller and the air Impeller intake and the clearance between the main shaft and the casing (shaft seal) so that they are as even as...
-
Page 13: Alignment
Alignment The fan is aligned at the factory before shipping, but should be realigned after installation. Warning Alignment work should be carried out without the belt guard and the shaft coupling guard. So they must be re-installed before starting the operation. -
Page 14: Alignment Of Direct Type Shaft Coupling
3.6.2. Alignment of direct type shaft coupling The following is an example of the case a flange type flexible shaft coupling is used. (1) Put a parallel ruler at four places on the circumference of the shaft coupling and check the gap between levels of the circumferences. - Page 15 (4) If necessary, install a damper to control air volume. Min. 1.5D (D: Impeller Dia.) Install straight air duct When bend section is near the Attach vanes at bend or When θ exceeds 7° (Correct) discharge port rectangular bend section (Wrong) (Wrong) (Correct)
-
Page 16: Precautions For Wiring Work
(2) If a standard thermal relay is used for the following models as an overload protection device, it may trip at the startup. Use a time delay thermal relay instead. Frequency Model number Motor output CTFII - No.3½ 3.7 kW 1880 min CTFII - No.4 3.7 kW... -
Page 17: Preparation For Operation
Preparation for operation Points to be checked before test running 4.1.1. Checking the electrical system (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 meet the rated current value of the motor being used. -
Page 18: Operation
Operation Precautions in test run Warning Be sure to install a belt guard and a shaft coupling guard before operation if the unit is equipped with them. (1) Close the damper and turn the unit ON and OFF once or twice to confirm that the unit is operating properly without any unusual noise or vibrations. -
Page 19: Precautions In Normal Operation
Precautions in normal operation (1) Frequently starting and stopping the fan may cause damage to it sooner. Use the following values as a guide for the frequency of starting the fan. Motor output Startup frequency 7.5kW or less Up to 6 times an hour 11kW to 22kW Up to 4 times an hour 26kW or more... -
Page 20: Maintenance And Inspection
Maintenance and inspection Daily inspection (1) Check vibration, noise, bearing temperature, the amount and cleanliness of the oil, cooling water, amperage, etc. 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. -
Page 21: Periodic Inspection
Normal noise produced at bearings Type of noise Normal noise It is a continuous hissing noise without any sudden change. This noise Noise from race is generated when a ball rolls on the race surface. It is a clattering noise. The balls are loaded in the radial direction (which is mostly the case), and then released in turn repeatedly. -
Page 22: Refill And Change Of Grease (Oil)
Refill and change of grease (oil) Warning The main shaft, V-belt pulley, and V-belt are rotating during operation. Care must be taken so that your clothing is not caught in these parts. 6.3.1. Rolling bearing (1) An insufficient amount of grease may cause poor lubrication. -
Page 23: Oil Bath Type Bearing
6.3.2. Oil bath type bearing (1) Since the oil is contaminated rapidly during Bearing the first six months from the start of Oil plug Oil gauge operation, replace the entire volume of the oil. (2) Change the oil after the first 300 hours operation, and every 2000 hours thereafter. -
Page 24: Troubleshooting
Troubleshooting Troubleshooting Even if the symptoms of failures of the fan are the same, the causes and countermeasures may be different. There may be two or more causes. If the cause and countermeasures cannot be determined using the following table, stop the operation immediately and contact a specialist company or a service center specified by the manufacturer. -
Page 25: Special Accessories
Special accessories Dampers (1) Refer to the external dimension drawing submitted separately. Install the damper in the designated place while paying attention to the rotation direction of the vane. (2) Open and close the vane to check that it does not contact the casing or ducts. (3) Apply lube grease on the sliding parts of the vane control damper periodically (once approximately three months). - Page 26 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‑00384‑000‑T...
Need help?
Do you have a question about the CTFII and is the answer not in the manual?
Questions and answers