FKD Series Inline Centrifugal Fans

Guide Specification

Item #: 450420

Rev Date: 2022-02-14

Description

A mixed flow centrifugal type exhaust/supply fan for moderate size ventilation applications specifically designed to bridge the transition from centrifugal to axial. FKD Series fans offer substantially quieter performance and are easier to install than axial arrangements. Fans can be mounted at any angle in any point along the duct work and straight-through air flow design allows easy installation. Fans can be easily removed from duct work for service. Fan motors are capable of operating in air stream temperatures of 140° F. Motor bearings are a permanently sealed, self lubricating ball type. All fans are 100% speed controllable through a decrease in the voltage by using a solid state or transformer type control. All FKD Series fans are backed by Fantech's Five Year Warranty.

Guide Specifications for Model FKD Inline Duct Fans

Supply, exhaust or return air inline fans shall be of the centrifugal, direct driven type.

Construction

Housing

Fan housing shall be constructed of heavy gauge galvanized sheet metal
Fan shall be supplied with externally mounted electrical terminal box with pre-wired terminal strip connections

Motor

Motorized impeller shall be an enclosed external rotor type. Single phase motors (FKD8XL – FKD18) shall be 120 or 230V permanent split capacitor type
Three phase motors (FKD18XL, FKD20) shall be dual wound for 230V or 440/460V
All motors shall be a permanently sealed self lubricating ball bearing type
Single phase motors shall be equipped with automatic reset thermal overload protection
Three phase motors shall be equipped with internal automatic reset thermal overload switch for interlock with contactor
Motors shall be acceptable for continuous duty
Sufficient service factor shall be provided to ensure long maintenance free operation over maximum load conditions

Wheel

Fan wheel shall be of the mixed flow centrifugal type with a well designed inlet venturi for maximum performance
Motorized impeller shall be both statically and dynamically balanced as one integral unit to provide for vibration free performance
Impellers for models FKD 12XL through FKD18 shall be molded of high impact polypropylene
Impeller for FKD 8XL through FKD 12, FKD 18XL and FKD 20 shall be constructed of aluminum

Performance

Fan air flow and sound performance shall be based on tests conducted in accordance with AMCA Standard 211 and 311 and shall be licensed to bear the AMCA Certified Ratings label.

Code Approval

Fan shall be tested and approved by UL and CSA (or equals) for safety

FKD Series shall be manufactured under the authority of Fantech, Inc., Lenexa, KS.

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