Accessories; Functional Description - Helios SilentBox SB EC Série Notice De Montage Et D'utilisation

Installation and Operating Instructions
CHAPTER 4
FUNCTION
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NOTE
SilentBox® SB EC ... EC Centrifugal Fan Boxes
3.2

Accessories

The use of accessories not offered or recommended by Helios is not permitted. Any potential damage is not covered
by warranty.
Flexible mounting clamp
Outside wall cover flap
Outside wall cover grille
Backdraught shutter
Differential pressure/temperature controller
Flexible sound attenuator
Air filter cassette G4
Air filter cassette F7
Speed potentiometer
Three-step switch
Universal control system
Electric heater battery
– with integrated temp. control
Temp. control system for electric heating battery EHR-R EHS
Warm water heater battery
Temp. control system for warm water heater battery
Duct system:
All Helios components fit standard duct Ø. For example, rigid spiral ducts, flexible aluminium or plastic ducts can be
used. The relevant fire-protection regulations must be observed if more than two stories of a building are connected.
4.0 Functional description SilentBox SB EC..
The SilentBox SB EC.. fans are variable speed controllable by means of a 0-10 V control voltage. Suitable potentio-
meters (Type PU/A 10; SS-980), three-step switches (Type SU/A) are available in the Helios accessory
range. Variable speed control is possible with a universal control system (Type EUR EC; SS-981). Alternatively,
the electronic differential pressure/temperature controller EDR / ETR can be used.
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Activation / deactivation:
EC fans can be frequently activated and deactivated via the 0-10 V control input or the release input
depending on the type. This is gentle on the electronics and ensures a long service life. Control via the
power supply (on/off) is not recommended. In general, there must be an interval of at least 120 seconds
between activation and deactivation.
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In case of strong vibrations and/or odours, maintenance must be carried out by a specialist according to
chapter 1.4.
FM..
VK..
G../RAG
RSKK..
EDR/ETR
FSD..
LFBR..G4
LFBR..F7
PU/A 10
SU/A
EUR EC
EHR-R..
EHR-R..TR
WHR
WHST../WHS..HE
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EN