Dimensions Connecting Flange (Outlet Adapter); Functional Description; Assembly; Installation - Helios GigaBox GBW EC Série Notice De Montage Et D'utilisation

Installation and Operating Instructions
m
NOTE
CHAPTER 3

ASSEMBLY/

INSTALLATION

Centrifugal fans – GigaBox GBW EC.. / GBD EC..
2.3

Dimensions Connecting flange (outlet adapter)

Type A B
c c
GBW EC 250 352 339 310
GBW EC 315 / 355 452 439 410
GBW EC 400 / 450 622 609 580
GBW EC 500 / 560 718 698 678
GBW EC 630 / 710 938 918 898
Fig.6
GBW EC 250-450
2.4

Functional description

The GigaBox GB EC.. fans are steplessly speed-controllable by means of 0-10 V control voltage. Suitable
potentiometers (Type PU/A 10), three-step switches (Type SU/A) are offered in the Helios accessories range.
Stepless speed control is possible with the universal controller (Type EUR EC). 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.
3.0 Assembly
The EC-GigaBox model range allows a flexible
assembly (installation position horizontal or verti-
cal) by five possible axial and centrifugal discharge
directions of the outlet adapter (see Fig.8).
Please pay attention to a secure, durable mounting
of the unit as well as a free access to the terminal
box and the motor impeller unity on the rear of the
unit. Easy positioning is made using integrated cra-
ne hooks. Removable panels allow an easy inspec-
tion access.
To prevent vibration transmission to buildings and
ducting systems use flexible connectors GB-FM..
(included in delivery) between EC-fan box and connecting ducting.
- With regard to duct installation, it must be ensured that there is a sufficiently long straight section of ducting
(2x duct diameter) before and after the unit, as otherwise there may be a loss of performance and higher
sound levels.
- The GigaBox must be assembled so that it is freely accessible for maintenance work.
- The installation must be carried out with condensation drainage showing downward (see Fig. 9)!
- The side panels can be removed for cleaning.
C D Ø E F G
- 6,5 - -
330 6,5 439 -
500 6,5 609 500
620 8 698 -
840 8 918 -
Fig.7
GBW EC 500-710
D
C
B
A
Fig.8
Axial discharge
5
D
C
B
A
Radial lateral Radial on both sides,
discharge free discharge
EN