7
Centrifugal fans – GigaBox GBW EC.. / GBD EC..
CHAPTER 6
FAULT CAUSES
CHAPTER 5
CLEANING AND
MAINTENANCE
WARNING
m
– Protection against accidental contact
- Remove assembly residuals and foreign parts from the ventilation room.
- Test unhindered running of the impeller.
- Check if cable gland is tight.
- Do the connection data agree with the data on fan rating plate
– Commissioning:
- Put motor into operation by switching the enable signal.
- Check even rotation and control behaviour by slowly increasing the setpoint specification
⇒
The fan must run smoothly at each speed.
5.0 Cleaning and Maintenance
All maintenance and servicing work must only be carried out by qualified personnel and all relevant safety
regulations and guidelines must be observed!
m
Ensure that the unit is isolated from the mains and is secured against restarting with an isolator switch
before maintenance and servicing work!
– Impeller must stand still
– Only clean unit with a damp cloth.
– Excessive deposits of dirt, dust, grease and other materials on the impeller, motor and between casing and impeller
must be avoided and prevented by periodical cleaning.
– For maintenance purposes inspection doors and access openings must be provided in the duct system in a suitable
place.
– The motors have maintenance-free, long lasting, greased ball bearings.
6.0 Information – Fault causes
The triggering of the integrated electronic temperature monitoring system can be caused by:
– fan not running at highest speed
– fan permanently running at highest speed
– the build-up of dirt, stiffness of impeller and/or ball bearing failure
– air flow temperature too high
Abnormal noises can be caused by
– incorrect direction of rotation
– worn out ball bearings
– lack of vibration decoupling to other buildings and ducting systems
Vibrations and oscillation can be caused by
– unbalanced or dirty impellers
– lack of vibration decoupling to other buildings and ducting systems
Extreme reductions in performance can occur
– in case of incorrect direction of rotation
– if resistance to air stream through ducting and accessories (grilles, shutters, filters etc.) is higher than planned
7.0 Technical data for control inputs
Type
Poti feed-in
in V / mA
Control input / set-value input
in V / A (Bürde)
Number of potential fans
with a potentiometer from
a 10V supply
(without
PU/A LED)
Number of potential fans with
a potentiometer from a 10V
supply
(with PU/A LED)
Number of potential
fans with EUR EC
GBW EC 250
10V / 6 mA
0-10V / 0,1 mA (Ri=100 kOhm)
47
47 LED over 24 V
100
GBW EC 315
10V / 6 mA
0-10V / 0,1 mA (Ri=100 kOhm)
47
47 LED over 24 V
100
GBW EC 355
10V / 6 mA
0-10V / 0,1 mA (Ri=100 kOhm)
47
47 LED over 24 V
100
GBW EC 400 A
10V / 6 mA
0-10V / 0,1 mA (Ri=100 kOhm)
47
47 LED over 24 V
100
GBW EC 400 B
10V / 6 mA
0-10V / 0,063 mA (Ri=160 kOhm)
75
75 LED over 24 V
100
GBW EC 450
10V / 6 mA
0-10V / 0,063 mA (Ri=160 kOhm)
75
75 LED over 24 V
100
GBD EC 450
10V / 6 mA
0-10V / 0,08 mA (Ri=130 kOhm)
59
59 LED over 24 V
100
GBD EC 500 A
10V / 6 mA
0-10V / 0,08 mA (Ri=130 kOhm)
59
59 LED over 24 V
100
GBD EC 500 B
10V / 6 mA
0-10V / 0,08 mA (Ri=130 kOhm)
59
59 LED over 24 V
100
GBD EC 560
10V / 6 mA
0-10V / 0,08 mA (Ri=130 kOhm)
59
59 LED over 24 V
100
GBD EC 630
10V / 6 mA
0-10V / 0,08 mA (Ri=130 kOhm)
59
59 LED over 24 V
100
GBD EC 710 A
10V / 6 mA
0-10V / 0,08 mA (Ri=130 kOhm)
59
59 LED over 24 V
100
GBD EC 710 B
10V / 6 mA
0-10V / 0,08 mA (Ri=130 kOhm)
59
59 LED over 24 V
100
CHAPTER 7
WIRING DIAGRAM
OVERVIEW
for GB.. EC ...
EN
NOTE
+
Summary of Contents for GBD EC 450
Page 12: ...10 Radialventilatoren GigaBox GBW EC GBD EC Montage und Betriebsvorschrift SS 977 SS 978 DE ...
Page 13: ...11 Radialventilatoren GigaBox GBW EC GBD EC Montage und Betriebsvorschrift SS 1035 DE ...
Page 25: ...11 Centrifugal fans GigaBox GBW EC GBD EC Installation and Operating Instructions SS 1035 EN ...
Page 38: ...12 ...
Page 39: ...13 ...
