IMO PRF, PRF EX 009 312436

Installation |
11
10 Installation
Safety information
Warning: Danger from falling fan or fan parts.
Check the surface before installation for load bearing capacity.
Consider all static and dynamic loads when selecting hoisting equipment and fastening components.
General safety information
Fans installed in areas where personnel access regularly must be equipped with a splinter guard, please contact
Systemair.
Observe 3 Important safety information, page 2
Use installation material with fire resistance classes that meet temperature requirements.
Provide contact and intake protection and ensure safety distances according to DIN EN ISO 13857 and DIN 24167-1.
To reduce transmission of vibration to the duct system, we recommend flexible connections from our accessory
range, see chapter Accessories.
The materials the fan is made of have to be compatible to the transported media.
Pay attention to the safety data sheet of the chemical substances transported with the fan.
Preconditions
Ensure that the fan and all its components are
undamaged.
Fit the fans in such a way that there is sufficient
access for installation, troubleshooting, maintenance
and repair.
Protect against dust and moisture when installing.
Ensure that the information on the name plates (fan
and motor) matches up with the operating conditions.
Danger
Risk of ignition of a potentially explosive atmosphere!
Seal the system carefully.
Install accessory parts correctly.
The housing must be protected from shock impacts, using splinter protection if necessary (accessory)!
Aluminothermic Reaction
At high air speeds, in combination with aluminium, rust particles may lead to an aluminothermic reaction
which, in the worst case, can trigger the ignition of an explosive atmosphere. Upstream or downstream
components, or those which lie directly in the air flow, must not have any unprotected aluminium or steel
surfaces. To prevent an aluminothermic reaction, surface protection is required which at least fulfils the
cross-cut test classification 2 / DIN EN ISO 2409. Steel with an electro-galvanised or hot-dip galvanised
surface is not critical. However, care must be taken that appropriate protection is also applied to the cut
edges.
Important
Damage to the bearings or other parts of the fan can occur.
Do not place a duct bend directly before or after the fan!
Ensure a smooth and constant air flow to the device.
Rectangular duct system: D = Hydraulic diameter Round duct system: D = Nominal diameter
Ø D
min.
2,5x Ø D
min.
2,5x Ø D
Fig. 1 Straight ducts
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