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The blower stops unexpected
Erratic blower performance
Poor performance of the blower The blowers frequency converter
Blower cannot reach desired
setpoint
In case of doubt, contact a qualified service technician or Kongskilde service department.
Technical data:
MultiAir type
Rated blower power (kW)
Power supply
Fuse rating (Ampere)
Weight (kg) - S model
Weight (kg) - T model
Rotor rpm at full performance
Max. heating of air at 1.800 m
Ambient temperature - blower
Ambient temperature - control box
Approvals
Sound pressure level Lp (1 meter)
*: Exclusive noise from piping. If the overall installation is not adequately attenuated, high noise levels may occur -
see section "Installation".
30
The blower motor is overheated,
and has been switched off by the
PTC sensor in the motor
Pressure/vacuum- or flow control
transmitter is not correctly installed
in piping, and / or not correctly con-
nected to the blower.
The blowers frequency converter
has reached max. permissible
temperature, and "Inverter over-
temperature" is displayed in the
menu Error
has reached max. permissible
temperature, and "Inverter over-
temperature" is displayed in the
menu Error.
The differential pressure transducer
is mounted on a vibrating surface
The blowers performance is too low
for the system and setpoint
/h i °C
3
≈ 70 dB (A) (application dependent)*
The motor should be allowed to cool
down, and the course for overheating
examined
Check that the pressure/vacuum- or flow
control transmitter is correctly installed
in the pipeline (air speed in arrows di-
rection) and properly connected to the
blower electrically.
Check the air filters in the control box.
Check the cooling fans on the frequency
converter.
If possible, reduce ambient temperature.
If possible, reduce the need for capacity
Check the air filters in the control box.
Check the cooling fans on the frequency
converter.
If possible, reduce ambient temperature.
If possible, reduce the need for capacity
Move the transducer to a vibration-free
surface
Adjust the setpoint down to max. achiev-
able performance.
Customize the system so that the blower
can provide the required performance.
Choose a blower with higher performance
FCE 3500
37
380-480V, 50/60 Hz
80 (100 for UL/CSA)
660
675
4.800
45
-30°C to 50°C
-10°C to 50°C
CE or UL/CSA
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