Fans by Fantech Electronic Catalogue

P-5

2016

INSTALLATION DO’S AND DON’TS

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Figure 1.8. - Guards

Safety of personnel around rotating machinery is crucial.

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Don’t leave open fan inlets unguarded. This is unsafe to

personnel and machinery. In addition it may be illegal and leave

the building owner or installer open to prosecution.

Ensure open fan inlets are fitted with suitable guards. These

should be designed to comply with local regulations and not

only protect against injury but lessen the risk of a foreign object

entering the fan and causing damage.

1.0 AXIAL FANS (Cont.)

Figure 1.7. - Obstructions at fan inlets

Don’t obstruct fan inlets.

The impeller can be starved of air when the inlet to the fan is

obstructed. This effectively increases the system resistance

thereby reducing the air flow being handled by the fan.

This applies to all fan types.

Allow a gap at least equal to one fan diameter between the fan

intake and nearby obstructions, even then fan performance can

be less than rated.

Always fit an inlet cone on open axial fan inlets.