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Instruction Manual
Diagonal Flow Fan with Silencer Box
II
II
In-line Fan with Silencer Box – Model ALF-US / ALF
-U / ALF-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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Table of Contents
Related Manuals for Teral ALF-US
Summary of Contents for Teral ALF-US
- Page 1 Instruction Manual Diagonal Flow Fan with Silencer Box In-line Fan with Silencer Box – Model ALF-US / ALF -U / ALF-U Warning Do not carry out operation, inspection or maintenance of the fan until you read this manual and understand the content.
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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: 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 5: 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 6: Configuration And Overview Of The Fan
Configuration and overview of the fan Structure and part names of the fan Part name Silencer box Fan casing Impeller Fan air intake Motor Motor lead wire Ground terminal (Ground wire) Lifting harness Intake companion flange Discharge companion flange Expansion joint... -
Page 7: Specifications Of The Fan
Specifications 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 8: Installation
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. (1) Check the nameplate to verify that the unit is the one you ordered. In particular, check the information on the rated current (50Hz or 60Hz). -
Page 9: Precautions For Connecting The Ducts
Installation Caution Ask a specialist company to install the fan in consideration of the center of gravity and weight. (1) After confirming the direction of the flow, horizontally install the fan onto the hang bolts mounted in the ceiling. Ensure that the load of the unit is evenly distributed among all the bolts. -
Page 10: 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 11: 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) For models with an output of over 200W, check that the settings of the overload protection device match the rated current value of the motor in use. -
Page 12: Operation
Operation Precautions when starting the fan (1) Turn the unit ON and OFF once or twice to confirm that the unit is operating normally without any unusual noise or vibrations. (2) Turn ON the fan, and operate it at full speed. Check for any vibrations or noise at each section of the fan. -
Page 13: 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. (2) If strong vibrations occur, stop the operation and check for the improper piping/duct connections, loose hang bolts, damage to the bearings, or other causes. -
Page 14: Troubleshooting
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 16 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 2017 06 TF‑049‑02...
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