Helios GigaBox GBD EC 500, Installation And Operating Instructions Manual

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Centrifugal fans – GigaBox GBW EC.. / GBD EC..
Installation and Operating Instructions
3.2 Dismantling
The complete motor impeller unit is without disassembly of the remaining unit components to the rear side removable.
3.3 Electrical connection
The following checks are to be carried out:
– Check for operation according to the intended purpose of the fan!
– The series may not be opated in potentially hazardous atmospheres!
– All work must be carried out with the equipment fully isolated from the power supply. The electrical connec-
tion is to be carried out in accordance with the relevant wiring diagram and is only to be done by a certified
electrician. All relevant safety regulation, national standards and norms are to be adhered to.
– The connection to a low voltage network has to be carried out according to DIN VDE 0298-4. Assignment of con-
ductor cross-sections and the fuse protection required of them (overload protection, no device protection).
4.0 Final start-up
Before the final start-up the following checks are to be carried out:
- Check if installation and electrical connection is carried out professionally.
- Contionous protective conductor is present
- Attach controller e.g.: PU 10
- Check if safety equipment is mounted professionally.
- Discharge adapter must be installed correctly (Fig.4) (turned by 180° on delivery)
- Accessories (flexible connectors, strap etc..) must be taken out of the fan box.
– 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
– Operation:
- Put motor into operation by switching the enable signal.
- Check by slow increase of the setpoint specification even rotation and control behavior
⇒
The fan must run smoothly at each speed.
5.0 Cleaning and Maintenance
All work may only be carried out by a qualified person. All relevant safety regulation, national standards and
norms are to be adhered to!
Make sure before the cleaning that the unit is isolated from the mains and is secured against restarting
with an isolator switch!
- Impeller must stand still
– Clean unit only with a damp cloth.
– Excessive deposit of dirt, dust, grease and other materials on the impeller, motor and between casing and impeller is
to be avoided and has to be 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 Indications – Disturbance origins
Triggering of motor overheat protection (TK) can indicate:
– fan does not run on highest speed
– fan runs permanetly on highest speed
– build- up of dirt, hard running impeller and/or ball bearing failure
– too high air flow temperature
Abnormal noises can mean
– wrong direction of rotation
– worn out ball bearings
– bad vibration isolation to other buildings and ducting systems
Vibration can originate from
– unbalanced or dirty impellers
– insufficient vibration isolation from buildings and ducting systems
Extreme reductions in performance can occur
– with wrong direction of rotation
– if resistance to air stream through ducting and accessories (grilles, shutters, filters etc.) is higher than designed
CHAPTER 6
FAULT DIAGNOSTICS
CHAPTER 5
CLEANING AND
MAINTENANCE
CHAPTER 4
OPERATION
WARNING
NOTE
☞
WARNING