Fantech FG Series Inline Centrifugal Fan Installation and Operation Manual

Product Overview

Item #: 400017

Revision Date: 2019-07-05

Product Series: FG Series (120V, 230V)

Description: Inline Centrifugal Fans / Ventilateurs Centrifuge en ligne / Ventiladores para Conductos Circulares

Fantech Inc. certifies that the FG Series shown herein is licensed to bear the AMCA Seal. Ratings are based on tests and procedures performed in accordance with AMCA Publications 211 and 311.

For quiet operation of ENERGY STAR® qualified fans, use appropriate sound attenuation techniques. For general ventilation, install at least 8 feet of insulated duct between grilles and fan. For kitchen range hoods, use a metal sound attenuator between the hood and fan.

Kit Contents

• Inline Fan FG, 1 pc
• Fan Mounting Bracket, 1 pc
• Bracket Hardware, 1 pc
• Electrical Box Hardware, 1 pc
• Operation and Installation Manual, 1 pc

Safety Precautions

[Warning] TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS:

• Use this unit only as intended by the manufacturer.
• Before servicing or cleaning, switch power off at the service panel and lock the service disconnecting means. If locking is not possible, use a prominent warning device.
• Installation and electrical wiring must be done by qualified persons according to applicable codes and standards, including fire-rated construction.
• Ensure sufficient air for proper combustion and exhausting of gases from fuel-burning equipment to prevent back drafting. Follow heating equipment manufacturer guidelines and safety standards (e.g., NFPA, ASHRAE, local codes).
• When cutting or drilling walls/ceilings, do not damage electrical wiring or other utilities.
• Ducted fans must always be vented to the outdoors.
• If installed over a tub or shower, it must be marked as appropriate and connected to a GFCI protected branch circuit.
• Never place a switch where it can be reached from a tub or shower.

[Warning] Rotating parts require safety precautions during installation, operation, and maintenance.

[Caution] For General Ventilation Use Only. Do Not Use To Exhaust Hazardous Or Explosive Material and Vapors.

[Note] Inspect unit within 15 days of receipt. Report any damage to the carrier. Do NOT operate if the blower or impeller assembly is visibly damaged.

[Note] For FG Series fans, use illustration 1 for bracket mounting or illustration 2 for hanger straps.

[Note] Use duct tape for a good seal on inlet/outlet. For Fantech FC clamps, attach clamps and insert screws through the clamp into flanges. Use 1/2" sheet metal screws for duct work, ensuring they penetrate the metal but do not bind the impeller. Angle screws away from the impeller if necessary. If not using FC clamps, use 1/4" screws.

[Warning] Screen guards must be installed if the fan is within 7 feet of personnel or the working area, or when advisable for safety.

[Note] Use an appropriate duct termination device (e.g., roof cap, wall cap, louvered shutters).

Dimensions

The following diagram illustrates the fan dimensions:

Diagram Description: A cylindrical fan housing with a circular duct connection at each end. Key dimensions are labeled A (diameter), C (depth), D (mounting flange width), E (mounting flange depth), and F (mounting flange width).

Dimensions are in inches. Dimensions en pouces. Dimensiones en pulgadas.

Installation Instructions

General Installation Principles:

• When installing, keep the number of elbows and bends to a minimum. Long radius elbows or bends are recommended if necessary.
• Apply duct sealant, caulk, or tape to all seams, including around wall/ceiling openings and exterior penetrations, to prevent air leakage and maximize performance.
• Ducting types: Flex, spiral, or snap lock ducting may be used. For rigid duct, Fantech FC clamps are recommended for airtight seals and vibration reduction.
• If using screws for rigid duct connection, do not place them less than half an inch from the fan housing to avoid blocking the blades.
• Minimize duct run lengths to reduce static pressure losses and promote adequate airflow. Keep flex duct runs straight and taut.
• If installing in an unconditioned space, insulate the fan to prevent condensation.
• For general ventilation, install at least 8 ft of insulated flexible duct between the exhaust/supply grille(s) and the fan.

Mounting:

Illustration 1 Description: Shows how the fan bracket is mounted to the fan and then to a wall or ceiling. Different model groups (FG 4/4XL/5/5XL, FG 6XL/8/8XL/10/10XL, FG 12/12XL) are depicted with their respective mounting configurations. Use long screws (bracket-wall) to mount the bracket and short screws (bracket-fan) for the fan.

Illustration 2 Description: Illustrates that fans can be suspended without special mounting brackets using vibration-absorbing material. It also shows the mounting bracket and screw locations for various FG models (FG 4/5, FG 4XL/5XL, FG 6, FG 6XL/6M/8/8XL/10/10XL).

Illustration 3 Description: A close-up view showing a duct connection to the fan. It warns not to screw less than 1/2" from the housing, as this could block the fan blades.

Ducting Impact: The ducting from the fan to the outside significantly affects airflow, noise, and energy use. Use the shortest, straightest duct routing possible for best performance. Avoid using ducts smaller than recommended. Insulation around ducts can reduce energy loss and inhibit mold growth. Fans installed with existing ducts may not achieve rated airflow.

Wiring and Electrical Information

[Warning] SPECIAL WIRING PRECAUTIONS:

• All installations must be wired according to the provided diagrams. Failure to comply may cause the motor to hum or not operate.
• Maximum torque for terminal block screws is 0.79 Nm (7 lb-in).

[Note] A cable gland must be used for outdoor applications.

[Note] Model FGC comes pre-wired with a three-prong power cord.

[Note] Fans are equipped with either 120V or 230V motors; they are not dual voltage.

Wiring Diagrams Description:

• 120V and 230V Motors with Motor Speed Controller: Shows connections for Motor Speed Control, Capacitor, Motor (Brown, Black, Blue), and Supply (Black/L, White/N, Green/Ground).
• 120V and 230V Motors without Motor Speed Controller: Shows connections for Capacitor, Motor (Brown, Black, Blue), and Supply (Black/L, White/N, Green/Ground).

[Note] Select control based on line voltage.

Troubleshooting

If the fan fails to operate, check the following:

• Consult wiring diagrams for proper connections.
• Check motor lead wiring, incoming supply wiring, and capacitor connections for proper contact.
• If possible, use a meter to test for continuity between fan leads. Note that a capacitor may show no reading when tested with a meter.

If the fan still does not function, contact Fantech for return/replacement instructions.

Maintenance

• Fan bearings are sealed and contain internal lubricating material; no additional lubrication is necessary.
• Clean accumulated particles from the fan impeller at least once a year.

Warranty Information

Five (5) Year Warranty: Fantech will repair or replace any part with a factory defect in workmanship or material during the warranty period. Product may need to be returned to the Fantech factory with a copy of the bill of sale and an RMA number.

Factory Return Requirements: Obtain an RMA number by calling Fantech. Write the RMA number clearly on the outside of the carton. All parts/product will be repaired/replaced and shipped back; no credit will be issued before inspection.

Warranties Not Applicable: Damages from shipping, improper wiring/installation, acts of God, misuse, abuse, accident, incorrect voltage/current, label alteration, and consequential damages are not covered.

Warranty Validation: Keep a copy of the bill of sale. These warranties provide specific legal rights which may vary by state.

Limitation of Liability: Fantech is not liable for faulty installation, abuse, alterations, misapplication, or unauthorized repairs. Liability is limited to repair or replacement of defective parts. Fantech is not responsible for consequential damages.

[Warning] Fantech products are not guaranteed to be 100% defect-free. If used in life support systems where failure could cause injury or loss, the user must provide adequate backup ventilation, supplementary natural ventilation, or a failure alarm system, or accept the risk.

Specific Installation Notes: Range Hoods

[Warning] For installations where the fan connects to a range hood or an exhaust grill is near the cooking surface:

• Risk of Fire: Use ONLY METAL DUCTWORK. Use galvanized steel ductwork compliant with all applicable codes. Other approved ducting may be used if the fan is not connected to a range hood or grill near the cooking surface; check local codes.
• Grease Fire Prevention: Keep fans, filters, and surfaces clean and grease-free. Always turn the hood ON when cooking at high heat. Use appropriate heat settings and do not leave the stove unattended. Use proper cookware.
• Injury Prevention (Grease Fire): Smother flames with a close-fitting lid, cookie sheet, or metal tray, then turn off the burner. Be careful to prevent burns. If flames persist, evacuate and call the fire department. Never pick up a flaming pan. Do not use water, as it can cause a violent steam explosion. Use an extinguisher only if you are trained, the fire is small and contained, the fire department is called, and you have a clear exit.