User Maintenance; Opening The Casing; Cleaning - Helios SilentBox SB EC Série Notice De Montage Et D'utilisation

Installation and Operating Instructions
EN
CHAPTER 5

USER MAINTENANCE

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WARNING
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WARNING
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WARNING
SilentBox® SB EC ... EC Centrifugal Fan Boxes
5.0

Opening the casing

CAUTION!
Risk of injury when opening the casing due to the hinged/removeable motor impeller unit!
Do not stand in swing-out/opening area!
1. Disconnect the unit from the power supply and secure it against switching on again!
2. Loosen snap locks and remove cover (Fig. 2).
3. Then loosen the fixing screws on the motor bedplate and swing out motor impeller (type-dependent) (Fig.4).
Fig.2
5.1

Cleaning

WARNING!
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!
Fig.3 Fig.4
Hinged
motor impeller unit
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