6
Centrifugal fans – GigaBox GBW EC.. / GBD EC..
Installation and Operating Instructions
2.3 Dimensions Connecting flange (outlet adapter)
2.4 Functional description
The GigaBox GB EC.. fans are steplessly speed-controllable by means of 0-10 V control voltage. The devices are supplied
asstandard with an internal potentiometer for setting of control voltage allowing speed to be set between min. and max.
speed. For an external speed setting with a 0-10 V control signal, the internal potentiometer must be removed
.
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.
m
Activation / deactivation:
Frequent switching on and off of EC fans can be carried out via the 0-10 V control input by switching off the control
signal to 0 V. This applies to operation with an external potentiometer or external 0-10 V signal from the building
management system. Switching off is alternatively also possible via a release input, depending on the type. This is
gentle on the electronics and ensures a long service life. If this is not easy to realise, e.g. when operating with an
internal potentiometer, it can also be done by switching off the mains supply. In general, a time interval of at least
120 seconds must be observed when switching the mains off/on.
m
In case of strong vibrations and/or odours, maintenance must be carried out by a specialist according to
chapter 1.4.
C
B
A
E
D
F
G
Dim. in mm
C
A
D
F
E
B
GBW EC 250-450
GBW EC 500-710
Fig.6
Dim. in mm
Fig.7
NOTE
GBW EC 250
352 339 310
-
6,5 - -
GBW EC 315 / 355 452 439 410 330 6,5 439 -
GBW EC 400 / 450 622 609 580 500 6,5 609 500
GBW EC 500 / 560 718 698 678 620
8 698 -
Type
c
A B
c
C D
Ø E F G
GBW EC 630 / 710 938 918 898 840
8 918 -
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.
CHAPTER 3
ASSEMBLY/
INSTALLATION
Radial lateral
discharge
Radial on both sides,
free discharge
Axial discharge
Fig.8
EN
Summary of Contents for GigaBox GBD EC 560
Page 14: ...DE Radialventilatoren GigaBox GBW EC GBD EC Montage und Betriebsvorschrift 12 SS 1035 5 ...
Page 15: ...13 Radialventilatoren GigaBox GBW EC GBD EC Montage und Betriebsvorschrift DE ...
Page 43: ...13 Caissons centrifuges GigaBox GBW EC GBD EC Notice de montage et d utilisation FR SS 1035 5 ...
