Name: Howden ELF
Brand: Howden
Rating: 5 (1 reviews)

Questions and Answers:

fwhiteAug 3, 2025

Why is the air volume low in my Howden Fan?

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Hector PetersAug 4, 2025
If the Howden Fan's air volume is low, several factors could be responsible. The system may be fouled, requiring cleaning of air-cooler bundles or cooling tower fill. Obstacles in the housing or air stream could be present; check the actual total area of obstacles and impeller housing inlet shape against the original selection. If the static pressure is higher than specified or the air temperature is higher than the design temperature, increase the blade angle, but only up to 3 degrees initially, and then perform a selection check. Also, verify that the blade angle hasn't decreased due to rotation of the blades; if so, reset the blade angle and torque the U-bolt nuts correctly.

Chad SnowAug 8, 2025

What to do if the vibration level is high in Howden Fan?

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amydominguezAug 8, 2025
A high vibration level in your Howden Fan can stem from several causes. The impeller may be imbalanced, so check the position of the fan blades according to the instructions. There might be a lack of stiffness in the support structure, requiring reinforcement. Ensure that the bolting of the drive-train connection or fan housing is tight. Incorrect drive alignment can also cause vibration, so realign it. Check for driver bearing damage and repair or replace if necessary. Make sure the drainage holes are open. If the blade is not flush against the lower clamping piece, release the U-bolts, pull the blade outwards, and re-tighten the U-bolts to the correct torque. Also, verify that the blade angles are within ±0.5° tolerance and reset them if needed.

Brand

Model

ELF

Howden ELF User Manual

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