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Installation and Operating Instructions
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DANGER
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DANGER
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WARNING
CHAPTER 6
INSTALLATION
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SilentBox® SB EC . . . EC Centrifugal Fan Boxes
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5 .1
Cleaning
DANGER!
An insulation/installation fault may result in electric shock!
Before cleaning, isolate the fan from the mains power supply and protect against being switching on again!
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Waiting period of at least 5 minutes!
When using capacitors, there is a danger to life after deactivation due to the direct touching of live parts . Ter-
minal compartment access is only permitted after the power supply is disconnected and a 5 minute waiting
period .
WARNING!
The unexpected rotating impeller can crush fingers .
Before cleaning, isolate the fan from the mains power supply and protect against being switching on again!
– Clean casing and impeller with a damp cloth
– The motor must not come into contact with water!
– Do not use aggressive cleaning agents that could damage the paintwork!
– High pressure cleaners or water jets are not permitted!
All of the following information and instructions are intended solely for
authorised electricians!
6 .0
Scope of delivery/Design
The SilentBox
®
SB EC.. EC Centrifugal Fan Boxes consist of a sheet steel casing, lined on all sides with 50mm thick
mineral wool lining and motor impeller unit mounted on the motor bedplate. Cover is easily removable through four swing
tops. Motor and impeller can be swivelled out. There is a terminal box for connection to the mains power supply on the
outside. The scope of delivery includes an internal potentiometer in the terminal box with which any fan speed between
min. and max. speed can be set. For speed control, the internal potentiometer can be set to the desired speed set-
point. For an external speed setting with a 0-10 V control signal, the internal potentiometer must be removed. The fans
are delivered as fully assembled units. Leave the SB unit in the packaging until installation in order to prevent any possible
damage and contamination. during transport and on site.
m CAUTION
You can cut or scrape yourself due to sharp edges . Wear protective gloves when unpacking!
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