Motor Direct Drive Centrifugal Fan Core

Construction of Product

• Wheel: Forwards curved radial Wheel is made of high-grade imported hot-galvanizing steel punched with precision mould and curled. The reasonable design of impeller makes the ventilator work in the optimum condition. The Wheel is fixed on the middle disk plate and on the end ring with riveting grippers. The Wheel has enough rigidity during continuous rotation with maximum power. All Wheels have passed by ANSI/AMCA-204 balance test according to the Company Standard which is higher level than National Standard.

• Hub: The connection of Wheel with electric motor shaft is guaranteed by the hub which is made of constructional steeldor die cast zinc alloy followed by precision processing. The permissible tolerance of hole diameter, per-pendicularity and coaxality are all kept within 0.01 mm

Instructions

• Matching electric motor power of ventilation denotes internal power plus safety coefficient of electric motor capacity in special operating condition, it does denote the power required during full opening of air outlet. Therefore no-load running of fan without any applied resistance is strictly prohibited in order to avoid burning out of the motor caused by its operation at over rated power.

• Special care should be taken during transportation, load and unload. The fan is limited for use in areas where air substances are non-corrosive, non-toxics and non-erosive.

• Prior to installing fan, rotate the Wheel by hand or stick to check for tightness or impact. If it is ensured that there is no tightness and impact, then the installation can be carried out.

• After installing, the fan, the scroll of fan should be inspected, There should not be tools and extra matters remained in the casing.

• Prior to official operation of ventilation, it is necessary to check the rotating direction of both motor and fan for their coordination.

• During ordering it is necessary to state the type of fan, speed, air volume, air pressure, direction of air outlet, rotating direction, type of electric motor and its specifications.