lownoise-drumfan.jpg
Model Size Voltage Power Speed Capacity Pressure
Inch V W RPM m³ / h Pa
DF/SF 4G-4 16″ 220/380 550 1420 5300 166
DF/SF 5G-4 20″ 220/380 750 1420 9300 _ 196
DF/SF 6G-4 24″ 220/380 2200 1420 18700 294
SF 7G-6 28″ 380 2200 1420 23000 195

sfseriesaxial

Size (mm)

Model Ø A Ø B Ø C Ø D N – Ø K L1 L
2.5G 255 295 300 275 6 – Ø 7.2 250 275
3G 310 370 376 340 6 – Ø 7.2 250 280
3.5 G 350 410 416 380 8 – Ø 9 250 290
4 G 410 470 485 440 8 – Ø 9 290 330
5 G 510 570 590 540 8 – Ø 10 290 330
6 G 610 680 695 645 8 – Ø 10 410 455
7 G 710 790 825 745 10 – Ø 12 450 490
8 G – 4 810 890 930 845 10 – Ø 12 450 490
8 G – 6 810 890 930 845 10 – Ø 12 450 490

Check Before Installation

Please check the fan when the product arrive:

  1. Check whether the product type is correct and the data plate is clear and correct.
  2. Check the parts of the fan, whether they are damaged or become deformed.
  3. Check the turning parts of the fan, whether they are rubbing or touching each other.

Test and Operation

Check and test the following items after completing installation:

  1. Ensure that the turning parts of the fan can turn flexibly and have not any rubbing or touching noise .
  2. Ensure that power id linking correctly and the type of control power is correct.
  3. Ensure all the linking parts link formly.
  4. Ensure that there is not anything else in the fan.

You should turn off the fan at once if such accidents happened:

  1. There is rubbing sound.
  2. The impeller is overturn.
  3. The body vibrate acutely.
  4. The motor is smoking .
  5. The degree of the motor is very high.

CAUTION

Please pay attention to these items:

  1. Be careful when the fan is hoisted ,the hoisting position must locate firmly.
  2. The fan must be installed on firm root and be fixed by mounting feet screw.
  3. In order to reduce the vibration , you should install a rigid dampener.

MAINTENANCES

In order to ensure the fan operating normally , you should maintain the fan according to these items during the use :

  1. The turning parts should be lubricated regularly.
  2. You should clean the fan regularly , otherwise the dynamic balance is easy to be damaged.
  3. Check the linking parts regularly.
  4. Do not allow water to contact the electrical parts such as motor

Normal Fault Analysis


Fault name Cause
Fan vibration
  • when the fan is operating,the impeller touches the ring, the reasong may be the ring or impeller becoming deformed between the transport or stockpole.
  • the dynamic balance is cracked , the reason may be the impeller bicoming
Motor heaten
  • the resistance of the system is too great, the motor operate overload or the
    valve of duct system do not opened.
  • the voltage id too low or the motor operates lacking phase.
Deficient volume
  • the system is leaky.
  • the resistance of the system is too great.
  • the wind door of the system is close .
  • the model of the fan is not fit the system.